Free Exhibits - District Court of Colorado - Colorado

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 1 of 25

cr1

Ui
32

Co

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 2 of 25

U.S

Patent

Dec

1995

Sheet

of

5474142

217

210

226

221

NOV

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 3 of 25

U.S

Patent

Dec

1995

Sheet

of

5474142

112

101

88

88

Jo

NOV-2908

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 4 of 25

U.S Patent

Dec 12

1995

Sheet

of

5474142

120

142

141

40

145

146 148

Nov

29og

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 5 of 25

U.S

Dec

199.5

Sheet

5474142

145 400

-401

In
AIR
IN

N0y29

j0

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 6 of 25

U.S

Dcc

of

5474142

1Fj

11

21

170

21

174

rii24I
174

1I

fljU1
NOV
-2911

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 7 of 25

U.S Patent

Dec 12

1995

Sheet

of

5474142

LI

NOV-

2912

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 8 of 25

5474142
AUTOMATIC SYSTEM
bit string

drilling drill

fluid

pressure

regulator

torque

regulator

anda

BACKGROUND OF
The tens an
drill

respectively

The
present invention particularly
relates

receive in of signals

signals to

measure
signal

to not

automatic

drilling

systo

changes

and

produce
Specilically

an

output

and more

but

by way and
or

of limitation of

representative pressure

any changes
measures

drilling
fluid

automatic

drilling vertical response drilling

system

that

controls horizonal

regulator outputs

changes

pres

directional to

drilling

sure of

and

signal representing measures

changes
in

The
outputs

operations bit
drill

any one of
pressure

any

combination

weight
10

regulator

changes changes

weight

fluid

drill

string

torque

and

signal representing regulator signal measures representing measures changes those changes those

The
string

drill

torque

RPM
DESCRIPTION

in

drill

torque
drill

and
string

output

changes
in
drill

RPM

OF
presently
throttle

ART

regulator

suing

RPM
which
drill

outputs

signal representing Typical using automatic
bit drillers

changes. to relay to

weighL
brake in

brake decreases cable

handle

15

Each of
sive to

regulators

attaches output string regulators suing

respon
string

of

the to release
drill

response

to

that regulators to
drill all drill

signal

supply

weight

the

drill

control signal in places
series

connect

support lowering string the

lower
additional order
driller

string

The
the

weight increase

of
bit

drill

on
to

top
its

of the desired

drill

bit 20

rently

top
via to relay

so

that

may be

utilized

concur
string

signal to the

drill

to

weight desired

value
into to

controller attach

respective

Furthermore
the relays

which
of the

operator
driller bit

weight the

value desired

on

and

automatic the as the

which

then

compares by

to pennit

an

operator

driller

to select are to control

weight
bit

measured

weight the remains supports the weight desired the the
drill

As long
of
the 25 at

one
the

of

or

which

combination

actual bit
drill

weight the

remains cable

drilling drill

operation controller signal
drilling to

desired

weight

drum

The
drill

to

the

to receive or regulators

and
its

support

cable

suing

from

regulator

present
bit

level weight

However
that
falls

once

men
rig operator handle to release

controlling relay connected

operation drilling drilling

Illustratively fluid fluid pressure pressure operates

when

the

sures entered

outside

the

regulator signal the
it

into

automatic
driller

driller

by

receives supplies
string drill

the automatic the cable

suing to

control

drill

drum

brake

cable
weight brake

controller
drill

effect

an

increase

the rate of release

thereby bit

placing

more drum

of

the

drill

string

upon

the

drill

the

string results

Conversely
the the

an

increase
drill

remains
to the 35 automatic
vertical drillers

pressure signal decrease

supplying
drill

control to effect

indicator

provides equals
bit

signal the

operates
in

controller of the
drill

substantially

the

rate of the

striag
bit

Although
adequately operate
drilling

weight

however
cease to
lator drill troller

connected
in
bit

to

the

weight
it

regu con
in the the

for completely for

they

receives string control an inorease

weight

signal the
drill

properly operations the string

any

type

of

directional the

or

horizontal

that operates in the rate
bit

string

Specifically weight

once

borehole typically direct

to effect

of

release results

from
to the weight

indicator longer

mounts

string

Conversely

an
drill

increase string to effect

in

weight

cable

no

measures
the
drill

relay supplying at to

signal

that operates in rare

instead result
driller

measures

string

weight

an
the

drill

controller

of

angle
automatic string
driller

indicator reading
drill

supplies

release

of

drill

suing
the relay

an
the biL

of
the cable

drill

Alternatively torque regulator supplies string

when

connected
in

to the
drill

drill

string torque

weight
will fail

on

decrease
drill

to properly
string

control

drum

brake

to

signal the
drill

string to effect

operates

release

drill

operation

controller

an an

increase increase
drill

in in
drill

rate

of

fore
the well

not operate of

an

optimal completing the

which
the

release as torque signal

of

the

drill in

However
the relay the supplying
drill

string control

likelihood

successfully the cost of

borehole

results

string to

as increasing

operates in
if

suing
of

controller string
drill

effect

Accordingly
only operates

need
through

exists
bit

for

an

automatic

not but

decrease Finally lator

rate the

of

measurements measurements
so

connected
increase in
drill

string

RPM
the

regu

operates
tional

in response horizontal

to

other

that

direc

receives
drill

an

or

boreholes

may be

supplies string

string

control

signal

operates in the rate in

drill

controller string

to effect

an

increase

of suing

SUMMARY OF
In
drilling

the

drill

Conversely

decrease
drill

RPM
that the

results in accordance system to any with controls the present
drill

invention string

an

automatic operates the

relay supplying
drill

suing

control

controller
drill

to effect

the

of

response
fluid

one of
bit

any combination
drill drill

of

or

all

of

rate

of
therefore

suing
the present invention to

60
It

pressure
to

weight

torque and
string of the drilling

an

object

RPM
rig

automatically
drilling drilling fluid

provide
trolling

an

automatic release in the
drill

of
string of drilling

con
response

of

borehole
hit drill

includes
drill

pressure

sensor

to ss

changes

any

one

of any combination
bit

of

or

all

torque output signals

and

string

RPM
fluid

sensor pres
to

drilling
drill

fluid

pressure

drill

torque

and

The sure

sensors
bit

representing

drilling
drill

string other

RPM
objects

weight

drill

suing torque and

Still

and

advantages

of

the

present

NOV

.2913

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 9 of 25

5474142
become
the evident

invention light

to

those

in

the

art

in

zontal

boreholes

to

drilled table

To

drill

borehole
drill

of

following

formation rotate
drill

87

rotary

may

drive

21

to

23
21
during
bit

or

BRIEF

DESCRIFflON
front

OF
depicting

DRAWINGS
typical rig

or

drill

HG
controlled preferred

However
is

mud motor 85 may rotate drill bit 23 mud motor 85 may be in tandem mud motor 85 typical drilling operation
only
at

view

drives borehole while

drill

the

directionalization precise borehole

point

by the automatic embodiment of schematic system according invention

system the present

according

to the

order suing

to ensure drives
drill

angle
line

invention the the

drill

23

during

straight

HG
drilling present

depicting to the preferred

drilling

embodiment

Pump 25 pumps
via
drilling

drilling

string

21 21

88 where
drill

down The
drilling

drill

string

FIG
of the

an enlarged view
drilling

of the

pump

pressure
in

regolator

automatic
is to

system
depicting

depicted

mud motor 85 and mud motor 85
to prevent

fluid bit

pressure carries

within

drill

23

to

blowouts

and

formation

FIG
according tion

view
the preferred

pump

pressure

sensor

from

borehole

86
22 must
adjust
drill

embodiment

of the present

inven

Drawworks
derrick

string

21

vertically

along

to retain

23
maintain

on
the as long
drill drill

i.e
progression

on of 21

FIG
pump FIG
well-head preferred
fluid

front pressure present

view
sensor

partial

perspective
in

the borehole 20 maintains
drill bit

of

borehole

and

utilized

automatic

87
and 23
will constant borehole

system

of the

invention front depicting
to

pressure

on

bit at

23
an

Gis

cross-sectional

the the

gouge

86

from
based

pressure

compensation
of present invention
drill

optimal sition

rate

of

chosen of
per

upon

the vary

compo
from
as

embodiment
is

of

formation four feet

FIG
utilized invention

side the

view

tension of the

sensor present

little

as

hour

to as

much

as

one hundred
did not

automatic

system

eighty adjust

feet

per
string

hour

If however
drill bit

21
of

off bottom
the

La
of

FIG
tension present

is

side

view

depicting

an

alternative system

line of the

off

the

borehole

sensor

utilized in

borehole automatic brake cable 30 constant in line optimal in
rate

would cease
to permit

Accordingly 26
to release

invention
is

32 must be manipulated 28 and
adjust

drum

FIG
warning
tension

schematic and

provtding
drill bit

diagram
switch

depicting
utilized

low

fluid

apparatus sensor
is

cut-off

pressure of
drill

on

to

maintain

illustrated

lb maintain
schematic utilized in depicting pipe

bit

23

on
driller

FIG
torque present

optimal 33
connects

rotation
rate of penetration handle

brake
of cable

sensor

lIt

system of

208

via

cable

to regulate

the release senses

28 23 28

invention

from drum
schematic torque present sensor

26
drill

33

when
to release

FIG
pipe rotation the
is

diagram
uulized

depicting

an

alternative

is

off bottom
suing until
drill

in the automatic

and

again

on
23
bit per

system of

invention

FIG
sensor invention

12

schematic

diagram
drilling

depicting

pipe

RPM

bottom Automatic is off
weight minute
drill

determines

bit fluid

measuring torque and

drilling drill

pressure

utilized in the

system ofthe

present

string

RPM
35 torque
rig

Drilling sensor

pressure

sensor sensor

34

bit

weight

FIG 13
pipe

is

schematic utilized

depicting the automatic

an

alteive
system of

sensor
oil

36

and

RPM

37 mount

REM

sensor

drilling

20
bit

to provide
drill driller drill

representative string

the present

invention
scihematic of

fluid

pressure
to

torque and

drill

FIG
embodiment
control

diagram
drilling

depicting system

an

alternative to

RPM
torque

automatic

33

Additionally weight

drilling

fluid

automatic

configured

pressure

80
gauge 10

gauge gauge

81

drill

coil tubing

rig

82

and
the

RPM
respective sensor sensor

83 mount produced

on by

drilling

to register

DETAILED

DESCRWIION OF ThE PREFERRED EMBODIMENTS
typical
drilling rig

drilling sensor

pressure

34
37

bit weight

sensor

35 torque
operator any one
the

36
driller

rig to
utilize

Automatic

may be programmed
all

FIG
automatic
rig

illustrates drilling

controlled invention

by
Drilling

of

the

measurements
or

any combination

of

above

system of
utilized

the
drill

present vertical

measurements brake 32

measurements
position of bit

to regulate within

10

may be

to Derrick

and
drill

and

horizontal within includes having

boreholes

20

supports

string

21

borehole

86
drilling drilling

drawworks drum 26 and
drilling

Drawworks
cable

As shown
comprise
sensor so using

P10.4
boot blocks

fluid

pressure

34

may

cable cable derrick

anchor 29

dual

sensor

100

Dual which
to
fit

strung

therebetween wind
cable

Rollers about

100 any
suitable

101106
as

together

30 mount
block

onto thus

20

to

28
21

means

such

screws

secure

rubber

31
32

suspending the

drill

string

from

boots

and
secure piston

109
automatic

Blocks

101-106 rubber

Brake
adjust derrick

of of
drill

28 from drum
string 21 with

26to

further

109
driller

Dual

vertical

position

respect

boot

sensor

100
111

connects and

20
table

hydraulic

line within

hydraulic

line connector

112

which
fits

Rotary
thereby includes

24

drives

drill

string

to

rotate
drill

drill

bit

23
21

65

screws between remove

and

104

Safety
line

valve connector

113

drilling

borehole

Additionally allows

string

rubber
the drilling pressure

112

to

mud motor 85 which

and

bori

signal

NOV

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 10 of 25

54741142

driller drill

33

if

ptessure

builds

up

within

to provide
in at

differential fluid

signal output pressure

representing

changes

drilling

within

suing 21 or
increase or the will
fluid

In force

operation
rubber contacts In turn

the

drilling

fluid

contacts cylinder

rubber

boot

107

to

the

well

Illustratively pressure within
drill

either

an

the decrease

boot

107

towards

110
against

Rubber

boot

drilling

suing 21 head

101 10$
the

cylinder cylinder

110 and
110

of to displace pressure
fluid drilling fluid fluid

pressure pressure
driller

at the

well

result delivered decrease

an
to

moves

rubber

boot

10$

increase automatic

of

the

hydraulic

within

111
against signal

33

Altemativejy within
at drill

rubber hydraulic tilling sides
drilling

10$
line

applies

pressure pressure

string

21

or

an

increase result to

in

provides

corresponding surface area of

to

the 10

ddlling decrease matic

the

well

head

will

pressure Although
cylinder
fluid

in

hydraulic

pressure

signal

of

110

may be

equal

to

provide ratio

one
the

to

one

33
and
be
illustrate

to

hydraulic

fluid

pressure contacting

FIGS
108
that

two

standard

weight on on
bit

bit

sensors to

area of

the

end

of

cylinder to provide
fluid ratio

boot in the

may

utilized 3.t

to

supply

weight

signal

may

be

enlarged to actual

measured
the
15

automatic

driller

FIG
that
bit

depicts cable weight

pressure cylinder one/Iburth

pressure

ratio

Illustratively

Decker
provide

weight

indicator

mounts

28w
not

surface

area

be
the
fluid

four to

one

to provide pressure

signal representative

reduction

between
hydraulic
drilling

drilling

fluid

and

suing

on
connects
to

top

of

drill

hydraulic

hose

the pressure

of

the

hydraulic pressure builds boot

shown
up
in drill driller

clipper

weight

indicator
driller

142

to automatic hydraulic

loweverif
suing

excess valve signal will
rise

fluid

provide the

automatic weight
drill

33
defection

21
boot

113 to

prevent

rubber

108 from

20

representation

string against against

on

bit

generating rubber safety connector boot within receive

automatic cavity

33
such forces hydraulic rubber 25

That

is cable

28

applies

pressure

plug

140 As

within the

which
result
fluid

turn

appliespressure

diaphragm

113 over

though

141
the to automatic

contracts hose
driller

pressurize to deliver hydraulic

112

thereby not exert line

blocking

Consequently
the hydraulic
driller

within signal

pres

108
hydraulic

any

pressure automatic

sure In

33
weight indicator

and
result

33

will not not

signal

automatic

33

be

implements
signal to automatic 21 applies to

sensor
driller drill

35

to

provide

damaged

from

overpressure standard
drilling fluid

33

Alternatively

pressure depicts

string

23
cable

Anchor anchor 28
to as

weight

indicator

145

may
10

be

employed

illustratively pressure
driller

FIG
which

30

also

substitutes indicator cable

cable anchors

27
drilling the

is
rig

Decker

mud pump
automatic
fluid

gauge 33

may be employed
indicative

weight
drilling

10 on

with cable

supply

with

signal

drum 147

146
applies pressure to

drilling

pressure The
includes to exert line

mud pump pres
114
against providing signal automatic

28
in turn

ann

diaphragm
hydraulic

148
line

sure
drilling

diaphragm
pressure

which

contacts

the

compresses
hydraulic

hydraulic

within signal to

149

to supply hydraulic

automatic

within
driller

115

thereby pressure pressure

149
idler

drilling wellhead be utilized sensor of provides

FIG 10
sensor
lic

FIG
that fluid

compensation
the drilling

utilized to

provide
driil

automatic string

driller Idler

may

with

torque

wheel
as diesel

pressure

of

or the

sensor engine tension wheel

160

is

utilized rotary

when
table

power

auth

pressure valve matic

P10.5

Wellhead

pressure pressure

compensation
signal to

drives sensor

See
against

FIG
as drive

wheel

120

auto

160 mounts
drive

drive

driller

33
well

that

incorporates the

changes
pressure pressure

162

abuts

chain
to

161 Thus
apply

chain pres

pressure
fluid

as

as

changes

of compensation
piston

rotates

wheel
idler

rotates

tension

suing

21

Well head

sure against hydraulic within connects

valve

120 comprises which
is

which
preferred

cylinder hydraulic

122
and

cross-shaped

embodiment
enclosure

to ann 163 which turn applies pressure the fluid pressure 167 increasing fluid line 164 164 Hydraulic fluid provide representing
drill

0-rings

123-126
divide

mount

piston

122

within

121
into

to/automatic hydraulic ii
illustrates

automatic
drill

of 127
hydraulic pressure
fluid is

33

with

torque
sensor utilized

four individual with

cavities
line

FIG
depending when
an

string rotary

torque table

the hydraulic

electric

motor

drives to

24 165
connects
it

upon
order

which

drilling drilling

used
of

in

Specifically to
electric

pneumatic As
electric that to signal

to apply

pressure

signal against output pressure

motor an

166

motor

166

operates

122
sensors

130 communicates mounted
wellhead
at at

generates

electrical

current

to

the pressure signal

to

apply

pneumatic pres
similar to those to allow the 60 ducer signal hose

165
converts that current to automatic supplied to

pneumatic
into

trans

conveyed
sure sensor depicted

to piston type cavity

165 which

pneumatic
via

the wellhead

in

FIGS
122 129 33

may be 5Air fills

delivers

33

pneumatic
driller

168 The
pneumatic
table

to automatic

motion of
fluid

within to provide hydraulic to the

121

hydraulic pressure signal

33
the torque rotary

165
to
drill

to

cavity

24
drill

suing sensor

21
utilized to
drill

to automatic pressure
drilling

driller

hydraulic

FIG
provide string 65
electric

12

illustrates

signal

corresponds within

between 21
drilling

driller

indicative

pressure

drill

RPM
motor
drives generator

power
rotary to table gear

such

as gear

diesel 170.V-belt drive

or

fluidpressureatthewellhead
in piston the fluid pressure balance applied

171

couples

172
with

shaft

170

to

generator

122

via cavities

against

each

172

gear

170

As

result

generator

172

NOV-2915

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 11 of 25

5474142
203

generates

voltage

signal

it

to
to to

electrical

to trans

string

regulator

remain

off to
air

donotregulateibe motor

pneumatic
ducer 173
it

transducer converts
that

173
to

Electrical

pneumatic
pneumatic to string

supply selectors

delivered

204

Valve

voltage automatic the of

232235
any

may be manipulated
combination
delivery

which

then

supplies

driller

provide

so

that

any combination ll of regulators
to air

automatic

driller

33 an

21
sensor

200-203

of compressed

mote

FIG 13
which
drill

illustrates

alternate with diesel gear signal table

RPM
engine

20k FIG
depicts an enlarged will

provides string drives

automatic

dew
200-203

of

RPM
rotary

drilling to provide

fluid

pressure illustra

when
table
electrical

or

electric

regulator tion

200
use

and
of

be

referenced

an

motor 174
speed

170

Proximity to the

of

the

in regulator to

33
200 measures
drilling selector switched regulate valve are

develops

an

that

corresponds
drill

Specifically

drilling drilling fluid

pressure pressure

which
to

rotary

24

rotates

string
that

21

changes
operation remains
that

in

Electrical cal ing signal
drill

pneumatic
converts

transducer
it

electri

described

232
off

into

pneumatic to

represent transducer
driller

on and
drilling fluid air

selectors pressure

233235
regulator
air

so

string

RPM

Electrical driller

pneumatic

200
to

regulates
air

connects

automatic pneumatic

33

to provide

automatic
drill

flow Drilling

compressed

from

the

supply 200
at

motor
drill

33

signal representing automatic regulator regulator the sensor and

string

RPM

pressure through

regulator

ensureS

204 23
of

As shown
drilling

in

FIG
torque

33
bit

comprises
regulator string

progresses penetration string

87
the

an

optimal fluid

rate

pressure

200 202 34
drill

maintaining
at

drilling

drill fitrid

201
regulator fluid

RPM
20

21

an
that

optimal optimal
sufficient

pressure1 pressure
bit

As long
drill

as the

drilling

which
pressure

signals sensor
string

remains

at

bIt in
drill

by
drill

drilling

35
air

bottom
through regulates

weight
fluid

borehole regulator cable

86 200 from

stringtorque

sensor36

RPM
comprises unit

formation
drilling

pressure

respectively

Automatic which
unit drives

driller

33

further gear

pressure to decreases lowers
drill drill

by

releasing

motor
ential

204
gear brake

differential

drum
to raise the Regulators

26
release

response of

in drilling string to place

ptessutt
drill

205 208
cable applies

cable

206

The
23

bit

lower
braking

handle

on

bottom With
within

23

on
drilling drilling fluid pressure pressure regulator

force

brake 32

against respectively drives

created

string optimal

raises

200-203

connect

to valves to
air

to output
air

back
reaches

to

its its

pneumatic 204to from
concurrently

signal

motor 204 which

motor 28

optimal

value of

drilling

fluid

pressure lowering

brake32andthusthereleaseof

cable

200

stops

the release

28

to

end

26
to

Although
control in

regulators

may be
they

string Drilling tube
fluid

32
combination

may

also

be

utilized

pressure connects

regulator to drilling
fluid

includes pressure within

Bourdon
sensor
drill

.-

individually cable In matic to
air

or

any

to control

the release

of

210 changes
to

34

28
the

from drum
preferred that

26
embodiment
valves

to sense

in

drilling

pressuta accordingly

string fluid adjust.

236-239

are

pneu-

21

and

contrOl

valve

236

Drilling

valves

operate

as relays to supply valves

motor
to to

204

Specifically

compressed 236-239 connect
an
air

pressure in ing

regulator

includes

flapper

screw

214
knob 210
to plate with Flapper

216
213 screw
connects

213 230 and
one

series

deliver
air

compressed

from
is the
air

supply the

shut-down Bourdon
connects to restoring

end

of

shown
pressure valve operator of

motor

204
236

220
in near

spring to

230

compressed

air to valve

through the value

flow
air

212
supplied

215 and

213
215

provide

231 and flow
displays regulator
air

that

pressure

nozzle

216
of

for the to limtt pressure

Nozzle

mounts on

plate the

to delivervariable to

amounts 240

212

functions to

of compressed
valve

from

digphragm
fluid

compressed
rate

valve

236

and
cable the

236

in

response

to

changes

in drilling

pressure
to adjust

maximum 206

which

motor 204
therefore

will determines

Adjusting plate

screw 214
transverse

connects to flapper

to plate

215

in pivot

regulator
at

212

inaxi

215

213
the

screw

225
in

mum
87

rate

which

drill

23

penetrate

into formation

That is an
arc

adjusting pivot

screw 214 screw 225 from 224

swings

top of
nozzle addition the pivot

215 216

about or

to position

either

Valve

selectors control are
to

232-235
the control

control

which

closer ones of is valve
all

further pin

flapper

213
provides

plate point

200-203
regulators
tors

operation the
drilling

four

includes flapper In

which

232-235
delivery

remain of

on

so that
air

regulators

200-203
respective drilling
drilling

normal 213
the response to

tube 210 changes
in nozzle

flap pressure to to airalters

the

compressed
if

valves

per vary ss

236-239
pressure valve

However
regulator

for
is

example

amount

200

to control switched In the

operation

valve

23 That
air
fluid

of compressed
variable

amount

of

Ut
the

selector

232

remains off

on

while

valve valve

opening compressed
drilling

233-235 232

are switched
to

on
air

position supply

motor 200
nozzle

204
regulate

before drill

continues
air

prevent onto

from
of the valve

will automatically

compressed
that drilling

directly

diaphragm
controls

so
so

ing calibrated

pressure
to supply to

216
operator

flappat selected

must amount

be of

fluid

opening
selectors to deliver of

closing

valve switched
air

236
off

Conversely
they onto allow the

with
air

valve supply

compressed

valve

236
fluid

233-235

To
automatically

pressure fluid

regulator the

200 dnting
to

and
zig

compressed 237-239
tion only

directly result the pressure
drill

diaphragms

241-243 open

pressure

As
to

valves flow of

and

func
by
65

operators
drill

must 23

first

manually 23
operators connect cable

place

compressed

air

regulated is
bit

bit

on

bottom
rig

drilling

regulator torque

200

That

bottom
drill

drilling

to then

regulator

regulator

and

brake

handle

208

screw

214

must

be

NOV-2916

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 12 of 25

5474142
10
adjusted
It

to

nozzle

216

relative

to

flapper

so delivery

chat

slowly
sufficient drill

so

that

drill

string

will

weight
the
drilling fluid

will

deliver

compressed
air

to valve

236 The
valve

to

sustain
at its

pressure optimal

of

within

compressed
allowing
If

by

nozzle of
air

opens motor

thereby

pressure should progress through

the

actuation

204
nozzle

At 216 remain
will tion

this

point the optimal

23

screw
drilling

214

and

thus

87

at

rate

of

penetration 1111
fluid

linfortunaty 23
will
rise

unadjusted maintain flapper
all

fluid

pressure

regulator

not

even off

under

optimal

drilling

conditions

drilling

pressa
air

Specifically

213

diverts

no

compressed
flowing

into

orifIce

222

bottom thus requiring tilling 200w readJust the release of
dnll
bit

28

the

compressed 21$ exhausts
delivers results

into

216

nine
fluid

23
within

even
drill

slightly 4off

fromOnim 26 Any bottom chilling
Drilling
fluid

orifice

through

nozzle
air

221
over top of

pressure

string

21
that

decreases decrease signal

therefore

no compressed in
valve

pressure

240 236

remaining

closed With no compressed
air

Bon
decrease

sensor

34

measures

and
representing registered

hydraulic

closed
brake

air

204
to

Any

decrease

in drilling causes
It

pressure

causing does not

32

remain engaged which 216

by 26 210
IS

210
contracts to
at it

to contract to

AsBourdon
the via flapper
Its

Consequently
in

drives

release

cable
nozzle

results

rising to deliver
air

connection

off
the

bottom
204
that

flapper pivot

213

at

pivot

screw
center

220 As
point nozzle

213

must be

moves
pin

left

screw

220

about outlet nozzle

drilling

operator
so

selected
drilling

tonir
will

to drive

opposite flapper

end towards

221
216
outlet

motor

optimal
drill

pressure

be

the
restricts

21310 flow from
air

maintained Adjusting order to

within

string threadably connects nozzle operator
to

additional redirects

compressed
that

nozzle

screw
plate

214 215

plate transverse

itt

221
orifIce

222
air

adjust

and
rig

216

compressed

to

the

top

of dia

flapper screw screw plate to

As 214 225
plate

drilling

tightens
to left

phragm
about the top

240

thereby further
air

226
motor
air

With
additional speed with

215 is

pivots

236 of

opened

.204

receives

an
the

adjusting

screw 214
to left

215

an

arc

from

right closer flow

screw As from

225
air

amount which
handle

of compressed
rotates causing in

which

increases reel

response 26
drill

cable

206 from an

brake

position

nozzle 216
deflects the

to

flapper

result nozzle

brake

to further

disengage

drum

flapper
outlet to

213

of delivers

26 Consequently
amount
30 suing thus
until

drum

additional

221

orifice

222 which
of

compressed

lowering
drill

suing

21 Drum

26

lowers so that

valve

The

diversion

compressed
to

21

23
pressure

again

resides

on

236 and 227 214
or

diaphragm open moves
eliminate

240

compress
loosening

springs

226

an

increase

of

drilling

valve nozzle the

236
216 away

string flapper air
drilling tO

21

may be
drilling

effected
fluid

scrcw
reduce valve

from

As

pressure sensor

returns

to

its

value
increase signal

diversion

of compressed

pressure

34
with

registers hydraulic

and repre

supplies

Bourdon
that

tube

210

The
air

opening of
to

valve

236

allows

compressed
into

air

from
out
air

senting within

increase

increasing

pressure

flow

from
valve

229

210 causes
the

it

toexpand
to flapper
to

pull flapper

from
flows valves

valve

236
valves

237

The
to
air

compressed motor by 204

213

to

connection flapper
its to

213

at

pivot

237239
previously
air

because
selectors

screw screw
opposite nozzle

220 220

213

pivoting about

the

right at pivot to drive
its

237-239 The

were

opened

valve

center the

pivots left

224
it

233-235
yates
it

compressed
begins
it

motor As
that air

204

scsi-

further delivers while

from
less

rotating transfers handle exerts

motor

204

rotates

outlet
air

orifice

222

differential

gear picks

unit

205
brake

to cable cable to lessen

compressed
outlet valve

over

top

of diaphragm compressed
less

240
air

nozzle

206 whiCh
the

up

221 236 204
closes

more

Consequently
air

brake

on drum
place

26 Consequently
weight
drill

slightly to deliver
it

compressed slowly

to

air

drum
suing

26

releases

cable
bit

28

to

more

motor

to

rotate

more

response 206 so
that

on

drill

23

causing

an

increase

differential

pressure
drilling rig

brake operator of tightens

gear unit 205 releases 208 lowers Differential
to to cable reel

cable gear unit

205

includes shaft shaft

screw 214 21
drilling

to

first

206 and 90
senses

cause within
fluid

the

release suing

fluid

wheel
rotation

sensor sensor rotation via rotating

21

reaches

its

desired

pressure

Drilling displays for the

90

the rotation of

pressure of

gauge

80 see

FIG

registers
drill

and

drum 26
differential

transfers gear unit

to the

second

the pressure
drilling rig

drilling

fluid

21
fluid

205 204

Acoord
more
slowly shaft

operator

Accordingly
the desired

when
drilling

pmthe

ingly

with

motor
shaft shaft

drum

26

sure

gauge
rig

$0

registers

fluid pressure

speeds

up

relative

to the furthet

resulting

drilling

operator pneumatic of

tightening pressure

screw 244
air

214
and 216

down
shaft

even
the

The
front

Altematively displays delivers
to

registers nozzle

down
reel handle

of

the thus

first

removes

forte

206

allowing

ittounspoolciblelGltolowerbrake
brake

valve

236 Thus
desired

pressure air pressure
rig

gauge

208
its

With

brake

32
of

244
the stops opening tightening

compressed
valve

and
operator cable Safety the
fluid

pf
to
its

26
calibrated

resulting

release

of

a4justing screw

236 the screw 214
no
longer

value
to drilling

knob
regulator drilling

With amount 204 204
maintains force of

214
air

pressure

200
rig or

compressed
to

valve

236

to result

air

motor motor
65

during conditions regulator

dangerous
fluid

drilling pressure senses

constant

amount As
engaged 26

As 200
in

previously release fluid

described

tilling

brake

32

drum
will release

26

at

when pressure
Unfortunately

constant

Consequently

cable

28

decrease

not every

NOV

.2917

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 13 of 25

5474142
11
decrease of
drill

12
should
drilling result

in

driling

pressure

in the

the stops per

point

for

251
Bourdon
to tube

string

21
fluid

pump 25
drill

In normal

250

manipulates to

flap
the

pumping
cavern
ing
fluid

drill

breaks
pressure regulator of
drill will

or

enterS drill

251

in response of

changes
delivers

vary

drilling

decrease however
should not release

amount
That valve

compressed amount of compressed
the force with before

to valve the

237

pressure
release

variable

opening

string could

21

string

237 and motor

drilling drilling

ig

10

or

create could

situation

drives tor

204 Howevet
must amount weight
the brake

drilling

fluid

injury to the In the safety outlet

operators large decrease pivots

occur
pressure

200
flapper

weight 251 be of
regulator drilling to supply to valve

254
driller

event of

drilling

and

shut-down

knob

flapper operation nozzle

213

from
operator tube causing regulate
if

selected

237

221

That is
flapper to

nonnal 213
valve towards

lb

calibrate
bit

201
operators
drill first

210

pivots

nozzle
fluid

open

rurther

rig to

pressure tube

drops below
will

an

operator

set

minimum
213

Bout-

manually

place

bit

23

don knob

210

push knob

flapper tube

213

bottom Once
rig

23 207 be

on
to brake adjusted handle to

against operators screw flapper against to relative result opposite to allow delivered nozzle valve to valve

Bourdon shut-down

210

connectable 252 must
then so delivery thereby

208 Adjust

pushes

safety

the right of flapper

pivot

217 screw 220 As
away from

rotates in

an

ment

move noSe
air

to flapper

that

213

pivots

nozzle

237 The 237

of compressed

by

nozzle

254

nozzle

outlet the

221

to exhaust to nozzle

compressed

opens

valve

allowing

motor

from

supply no

216 Accordingly
to valve

21W
If adjustment
bIt bit

ddlivem closes the
drilling

compressed
valve

236

screw weight

252

and

thus 201

nozzle will not

254 maintain
diverts

236 closed 28 from

motor 204

off to stop

unadjusted constant

regulator Specifically

of

cable

ending

the

flapper

no

operation
in to

compressed
bit drilling

into

orifice

260

and

the
orifice

compressed 259
exhausts delivers

As
utilized

PIG
201

201
operation

may be
bit

flowing through nozzle
air

254

through

control

261
over top

260
of diaphragm With

therefore

no
in

Specifically in

weight
regulate

regulator

measures changes
dnll

weight
formation the

to

compressed
valve

241 which

which weight

23 201
to

237 204
receives

closet

penetrates control

87

For

motor and
that only
air

no compressed

regulator

operation selectors
bit

selector

233 must be

switched

on

remain
cable

engaged which

Consequently
results
drill

232234
regulator supply
drill

and 235 must be 201
to regulates
air

so
flow

28

air causing brake 32io drum 26 does not release bit rising oft bottom

weight

of compressed weight

Thus
that

nozzle selected

must be amount
weight screw plate

adjusted

to deliver

the

drilling

rig

from 201
an
drill

the air

motor

204
through

regulator

operator

of
will

air

pressure

to air

motor 204

so

ensures optimal string as
drill

23 of

progresses

formation the

87

at

optimal

be maintained
connects to plate

rate

penetration to
drill

by

maintaining
at

Adjusting

252 253

threadably

253

21

applies

an

optimal

weight
drill

As
23

order

to adjust

thus
rig operator
left

254

transverse

long
will

string

applies with

optimal
sufficient

weight

flapper

251

As

drilling

loosens to right

reside

on

bottom

to regulator

drill

borehole regulates response rienced string the

86
bit

through weight

Bit cable weight release

201
in

28

drum 26
lowers

252 screw 257 plate 253 in an
screw
to position

pivots

from

about

pivot

is

adjusting
left

screw 252 swings
to right to flapper

top of screw 257

from 254
the

hook by 21
to

toad

tension
of cable

ape
reducing continues to to
drill bit

nozzle deflects

closer

251
air

As

result

cable place

28 The
drill bit

flapper outlet

251 261

flow of compressed which
the

hook

load

weight

of
the

bottom Drum 26
weight
drill

260
diversion

compressed compressed
to springs

air

to valve

237 The

valve

release
drill bit

cable

28

until to to
its

21

237 and 263 252
or

241 open moves
eliminate valve nozzle the

262

applies

returns applies regulator
drill

optimal reaches the release

Once
its

weight value 28
to

237
254

The away from
flapper to

suing
weight lowering Bit

drill

screw reduce
valve

201

stops

end

the

diversion

of compressed

237
237 from
Into

weight connects

regulator to
to bit

201

includes sensor

Bourdon
to sense

tube

250
in air

The opening of
supply valve to to flow

allowsoompressed 264

air

from

the out

which
bit

weight valve

35

changes
Bit

cavity

weight

and
201

control

from screw
flows 55

237

valve valve selector

air

regulator

further

252 256
251

plate

253
one end
spring provide of connects

spring

251 255
253

valve

237 because

232
valve

valve

Rapper screw 251

236

open The compressed
238 and 239
previously air entering to
air

through 23$ and

connects while
to

valves

motor

204 because

255

to plate force

and

flapper

239

were

23
and
gear

in order near

that

flapper

The compressed
begins
so unit picks force releases
drill it

motor 204
to

204

activates

it

nozzle

254

Nozzle of
of

254

mounts

on

plate the

to
air

rotating

As

air

motor motion
via

rotates cable

differential

deliver supply in
bit

variable to diaphragm

amounts 241

205 up
brEke

that handle exerts to

wheel

in response connects

to plate

changes 253
in

32
on

cable

207

to lessen

weight
to

Adjusting plate

screw 252 253 is
transverse

32

drum

Consequently weight
of
drill

drum

order pivot of

adjust

flapper

251

about the top 65

able 28

place more

suing 21 on

screw

257/That in an
either

screw 252 swings
about pivot further pivot pin

23
drilling rig operator loosens adjusting

plate

253 254

arc closer

screw 257 from 258

to

position

screw
string

252

to

nozzle addition

or

flapper

251
provides

cause on
drill

the bit
at

of
the desired Drill

21

resides

253

includes

which

weight

gauge

NOV-2918

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 14 of 25

5474142
13
81 see 21

14
drill

FIG
on

registers top

suing

of
differential

26
gear unit
air shaft

that rotation

to the cable

second

shaft

applies

of

dull

bit

23

for

rig

operator

Accordingly
desired adjusting
bit

drill

string

gauge
operator

81

registers loosening pressure of the

ingly

with

motor 204
speeds

rotating

more

slowly

91 Accord than drum
shaftresulting

weight screw

the

stops

the second
in first

up

relative

to the further

252
and 254

Alternatively displays to the

pneumatic pressure

shaft
first

even removes inc

The

slowing
cable

gauge
pressed

266
air

registers nozzle pressure pressure

com
when

down
reel

of thus

the driving

valve

237 Thus
the desired opening adjusting

206

allowing

unspool handle

207

to

lower brake brake
release

pneumatic
pressed

266

registers the desired loosening

com
valve

handle increases cable

208
28

With
braking

brake of
its

lowered
resulting in

and thus
operator

drum

26

237 251
With amount 204 204
of

screw

slowing

to

calibrated
drill string

As shown screw 252 compressed
to constant

FIG
regulator

torque

regulator Specifically
drill

may
drill

no

longer

being delivers

loosened
to
air

the

be

utilized to control

drilling

motor motor

string torque torque lbrmation
to

measures changes
rate string

stabilizes

As engaged drum
against
will

result

regulate

which
torque selector

drill

bit

23 202

penetrates to control switched

maintains force so that

32

drum
release
it

26

at

87
operation selectors valve

regulator

constant slowly

Consequently
drill

cable

28
bit

the

drilling

valve

234

must be

maintain

optimal

on and
off

232 233 and 235 must be
torque the regulator regulator
air

weight At
tion
this

so

that only

string

regulates to
air

the

point
at

drill

bit rate

should

progress

through

forma

flow
Drill

compressed
torque through

motor

204
23
of

the

optimal

of

202 87
tt

ensures

drill

bit rate

penetration

Unfortunately
hit rise

even

under

optimal thus weight

progresses penetration level

an

optimal

off bottom
readjust
bit

to

by

maintaining as
drill

drill

string

torque at

an
that

optimal optimal
bit

the release
rises

of

cable

from drum bottomc That

Any
the is

As
drill to bit drill

time

drill

torque

remains

23

even by

level weight

23

will reside

on
drill

bottom
formation

with

sufficient
Drill

slightly

experienced within cable

cable

28

$6 202

through

$7
in

string

increases

sensor

35

measures hydrau
in

torque cable

regulator

regulates

torque to

by

releasing string

that increase
lic

and

supplies

Bourdon

tube

250

28

drum
release

26

with

in response

changes
drill string

drill

signal representing registered tube

that increase

Any
causes

increase
it

hook

load

Bourdon 250 expands
to
it

torque The drill 23
torque
drill

28 With
21 applies torque
drill

to place

to

expand
to the right optimal optimal point release closer
Drill

on
string

bit

23

on

bottom
to reaches stops suing

the
its its

Bourdon
via
its

to

drill

increases string

flapper
at

251

at pivot

screw
its

256

As

value
drill

of

21 202

flapper pivots outlet to nozzle nozzle
orifice

moves

$ght

pivot
its

screw

256
end
to

center

string to

torque the

regulator of

the

258

of

to drive of

towards position

cable

28

end

drill

21
tube

pivoting

string

torque

regulator
drill

202

includes

Bourdon 361o

254

restricts

compressed
redirects

from
air air

270
changes in

connects string

string torque torque

torque

sensor control

sense 238
further

outlet

261

compressed
the

and

to

260 diaphragm
valve

delivers thereby further

to

the

accordingly includes

string

regulator

top

of

241
of
it

further
air

opening 204
increases cable reel

237
an

screw and one end
while order spring of

272
tube

plate

With

opened amount

motor
air

274
271 screw

spring connects

shut-down

273 nozzle 276 Flapper
wIth

additional

compressed
In

270
plate force

speed
brake

with handle

rotates

response 32

206

raises

277
271

275

connects

to

and

208

causing

brake

to further releases

from an

flapper tains plate

to provide nozzle

main
mounts
air

drum
additional lowers

Consequently amount
thus lowering
untIl drill bit

271 273
to deliver to

near

274

on

siring

21 Drum

amounts of

of compressed
valve

21
so that
drill

23

again
drill

on

the

supply
drill

dIaphragm 242

238

in

response
connects to flapper

bottom
applies

an
bit

increase

the effected onto sensor
drill

changes
to plate

torque Adjusting screw 272
order to adjust plate

onto the

23

may be

273

273 is

transverse adjusting

As
to
its

weight

drill

271
bit

about

string bit

applies

returns the swings so to position

pivot top of

screw

21$

That
in

screw

272

optimal

value
load

35

an

arc

about
or further pivot

screw 278 from 279
flapper

registers

decrease

experienced

by

cable

28

nozzle

274
plate point

closer

and
representing pressure

Bourdon
decrease

250 The
tube
left

with hydraulic
fluid

271

in

addition the pivot

273

includes

which

provides

271
tube

within

Bourdon
to the

250

causes

it

to to flapper

and

In per

operation response to

270
string torque to to
air alters

flap

push
ax

flapper screw

251

via

271 amount

changes
air

in

drill

pivot

256 With
its

flapper pivots thereby result

251
about

pivoting

to

The to drive

at its

ss

the

of compressed
variable

nozzle

274

valve
the

pivot

screw

256

center right

258
it

238
opening
of

amount 238

of
force

opposite nozzle

end
outlet

to the

moving
orifice

further delivers

from

valve

with

which
drill drill

261
air

compressed
suing so string torque regulator nozzle

motor 202

204
regulate

compressed
outlet valve

over

top

of diaphragm compressed

241
air

while

nozzle

will automatically flapper selected

exhausts

more

Consequently
to air

torque

274
operator

must be amount
of

calibrated

237 204

closes

slightly to

to deliver rotate

compressed slowly
reel

to supply
air

motor

causing gear 208 unit

more

In

response
so that

to valve

238
drill drill

differential

releases Differential to cable reel sensor gear

lb

calibrate

torque string

regulator

202
the

so

that

it

brake
first

unit

automatically

regulates
first

torque

shaft connected
to

second 90
via

shaft

65

operators
drill

must 23
the

manually

brake
drill bit

32

to place

connected cable

wheel

drum

rotation

on

Once
operators

on
cable

91 Wheel

rotation

sensor

90

senses

the rotation

bottom

207

to

NOV-2919

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 15 of 25

5474142
15
brake
adjusted
it

16
272 must 271
then so

handle to

208 Adjustment screw move nozzle 274 relative to
compressed
air

be
that

204

maintains force so
that

32

engaged drum 26
will

26
release
drill

at

flapper

constant slowly at
its

Consequently
drill

to valve opens

238 The
valve

delivery

of

21

string torque

compressed
allowing
if

by
actuation

274 of
air

238

optimal
this

level
bit

motor

204
nozzle

At 274
remain tion

point the

23

should

progress

through

adjustment
drill

screw
string
drill

272
torque

and

thus

87

at

optimal

rate of

penetration

Unfortunately 23
will

unadjusted
thin diverts

regulator

Will not

main-

even off

under

optimal thus requiring

conditions
drill

constant

Specifically
air orifice

flapper
all

bottom
bit

202 from

no

compressed
air

the

to readjust
drill ro

cable

Any time
torque
drIll

compressed
exhausts delivers results

flowing
nozzle outlet

274

orifice

280

even
applies measures hydraulic depicted to

slightly bit

off

bottom
stpplies

through

282
top

Orifice of

281

string therefore sensor

21

drill

23

decreases

Drill string

torque

36

that decrease signal

Bourdontbe
the

no compressed 238 valve motor
to

diaphragm 242 With
valve

270

with

that decrease utilized

remaining receives

closed

closed
brake not release

204

no

torque

sensor torque

HG HG

i64temadvely Bourdon case
tube

compressed

air

causing
if

remain
cable 2.8

engaged which

Consequently
in
bit

drum 26
23
rising to deliver

sensor

depicting

utilized tither

does tube

270
in
drill it

pneumatic
string torque

signal
registered tube

dccrease the
air

bottonf
drilling

Thus
so

noztie 274
selected optimal

must be amount
string

270

causes

to

As Bourdon
to the via
its

270

contracts

It

operator that

of torque

pressure will

to

drives

motor

204

drill

be

main
at

flapper screw center

271

connection

to flapper at pivot
Its

pivot
its

277 As
point nozzle closer to

flapper

271

moves 279

left

screw

tamed
Adjusting order

277
screw
plate

pivots

to drive of

272 273

threadably

connects nozzle

topl
274
transverse

in to

end
to

towards position
air

282 The
nozzle

pivoting

to adjust

274

restricts

additional redirects

com
the

flapper

271

As

drilling

operator

tightens
left

pressed pivot the top of

flow
air

outlet flow into top
orifice

282
Orifice

screw screw
plate to

272 plate 273 pivots 278 That is adjusting
in

right to

compressed compressed opening 204

281

281

delivers

screw 272
to left

to the

of

dIaphragm

242

further air

273

an

arc

from

right closer

about

screw 278

valve

238
an

valve

position

nozzle 274
deflects the

to

flapper

271
air

result

receives

additional

amount which

238 opened further of compressed
it

motor

flapper outlet to valve

compressed
the

from

nozzle
air

increases
reel

rotates

In

response
to

cable

orifice

281 which
of the

compressed
air

206

brake

handle

208 causing

Thrtln
releases

238 The
and

diversion

compressed
to

valve

disengage cable

from
additional

26
amount
21 that
bit

238 and

drives

diaphragm open

242

compress

springs of adjusting to
air

28 an

thus
until

lowering
drill

drill

valve nozzle the

238 The
274 away
of

Drum 26

lowers so

again

resides

screw
reduce valve

272
or

moves
eliminate

1mm
compressed

on

bottom
to
drill

an

increase effected to
its

torqe

drill

string

applies

drill

23

may be
36

As
of
to flow

string

torque

returns

optimal increase

value and
or supplies

The
air

238 from
into

allows

compressed
into

from 286
and out

string

torque tube

sensor

that either

supply valve

cavity

285

Bourdon
signal 40

hydraulic

pneumatic
hydraulic

from
flows valves valve valves

238

Compressed
valve

initially

that within

increase

The 270

increasing causes
le

to valve

238 237

and compressed
to
air

fluid pressure

tube to the right flapper center pivots

so to

expand
flapper

and 238

open

The 239

from 204
valve because selector

and 271
at its

pull
at

271 screw

connection pivoting

through also

motor by

pivot

277.
its

to the

239 was

previously
air

opened
air

pivot

screw

277 282

about moving

pIn
it

279w
further delivers

235 The compressed
and
gear picks force unit
it

entering

motor 204 204
rotateS

activates
differential

rotating transfers handle exerts

As
that

opposite

end

to the

left thereby result

from

motor

nozzle

As
top

281

205
brake

to cable

206

which

compressed
outlet valve

over
exhausts

of diaphragm compressed

242
air

bile

nozale

up

32

via

207

to lessen

the braking

282 238 204

more

Consequently
to
air

brake

32

on drum
place

26 Consequently
weight
the of

dram

26 on

slightly to deliver causing gear unit to

compressed
In

releases
drill bit

28 23
causing

to

more

motor

more slowly
releases Differential cable reel cable reel unit

response so
that

an
to

increase

amount

of

torque

drill

differential

206 205

string

21

applies

drill

23
tightens adjusting
until

brake screw 272
drill

208 lowers
shaft to to

gear

drilling

operator of
drill

to

first

206
90
via senses

second
flexible the

shaft

cause

the release to
drill

the

torque

connected
string cable

wheel

drum rotation
that

sensor

21

applies

bit

23

reaches

its

desired

dram rotation sensor 90 26 and
gear
unit

ro1aton

torque

gauge
torque

82
for

see
drilling

registers operatot registers the tightening pressure of the

of Accordingly when
drill differential

to the cable

second Aecosri

suing
drill

205
rotating

shaft than shaft

string the

torque
drilling

gauge
rig

82

ingly
the

with

motor 204

more slowly
to
the
first

drwn
resulting

torque screw

operator

stops

adjusting

second
lint shaft

speeds up

relative

272
274

Alternatively displays to the

pneumatic
pressure

gauge

287
air

in she

down
removes
to

even
the

further

The slowing
from
to

registers nozzle pressure pressure
drilling

and

delivers

valve

23$

Thus
desired

pneumatic compressed
the

gauge and
rig

287

registers the desired

down of reel 206 thus handle 208
increases cable 65
its

allowing

it

unspool handle 208

lower 32

brake
braking to

thus

opening
adjusting

of
its

26
calibrated

tire

release

of

operator screw

tightening

screw

272
the

28

With amount 204

adjusting of

272
air

no

longer

Safety string during

shut-down

knob 202
rig

276 from
releasing or

to

prevent

drill

compressed
to

valve

238

delivers

to

air

motor motor

torque either

regulator

drill

stabilizes

constant

amount As

result

dangerous

drilling

NOV

2920

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 16 of 25

5474142
17
conditions
lator

18
torque
it

previously
will

described string not the breaks or
drill

regu
in

to position

nozzle

294
plate point

either closer

or

further

from 299 which

203

release torque

drill

senses every

decrease decrease
drill

291

In

addition the pivot

293

includes

pivot

in

drill

Unfortunately result 21

provides In per

291
manipulates

drill

torque should
if stying

string

normal
response of

flap
to

21 For example
cavern
drill

string

enters
drill

291 amount

changes
air

in

vary
valve the the
drill

torque

will not release

however
drill string

the

compressed amount 239 and
air

294
of

delivers
air

to
alters

string torque

regulator

202
string

should 21 create the

21
as
could to

239
opening of

variable valve

compressed
the

The

release

of

drill rig

could situation

foree

which
before regulate

damage blowout occur

drilling

10

or
to

such

where

compressed
string string

drives regulator nozzle
driller

motor
will

20
automatically

injury

drilling

operators

RPM

203

2l

RPM
valve

294

and

flapper selected

291 must be amount
of

callbrated

In safety outlet

the

event

of

decrease

string flapper

torque
nozzle

shut-down

knob
271
valve

to supply
air

276

pivots

271 Bourdon

operator

compressed

to

282
274

That is
flapper
to

under

normal
nozzle

270

pivots

towards

thus
15

lb
siring tube

calibrate

drill

string
drill

RPM

regulator

203

so

that

it

nozzle torque

further

drops

an
flapper

operator

However if drill minimum Bourdon
against

automatically operators
drill

regulates
first

suing

RPM
brake

zig

must 23

manually

manipulate
drill bIt

32

to place

270

271

on

bottonf
rig

23

resides cable

on
to

against pushes flapper rotates in safety

276
about flapper nozzle

Bourdon knob

tube 270

bottom
brake handle to

operators

connect 292

shut-down
pivot

276
277
away
to

271 As from

an

to

the

208
nozzle

screw 294
air

must

then

be
that of

right

20

screw
pivots

result nozzle

adjusted
it

move

relative to valve

to flapper

as

271
outlet

282
air

will
air

239
valve

to

allow

282

exhaust to nozzle

delivered

compressed
allowing
If

by

nozzle of

294

opens

239

thcrdby

from

the

air

supply

274
to

nozzle

274 238

the

motor

204
nozzle will not flapper

delivers closes the

no

compressed
valve of

valve

238

and
to

screw 292
drill drill

and

Thus

remain
maintain

With

238 closed 28 from

motor 204 shun

unadjusted
the constant

string string

RPM
orifice

203
Specifically

release

cable

26

Thereby

RPM

drilling

operation
in

no compressed
drill

and
orifice

As shown
be

FIG-

regulator operation

203

air

may
through

nozzle outlet
air

294
Orifice of

300

exhausts

302

utilized to control

301

therefore

delivers results

no

Specifically in penetrates

string

RPM
to

regulator the
drill

203
rate

measures
at

compressed
valve

over

diaphragm

243

wlddh 239

changes

RPM
the

regulate

which
regulator

239

remaining closed
receives

dosed
brake not

air

formation

87
valve

string valve

203

motor 204 remain

to

control

no

compressed

causing

32to
release

operation
selectors

must be must 203
supply ensures optimal
at

switched cable so
that

engaged 28 which

Consequently
in
drill

26

does

on and
only

232-234

be switched regulates
air

drill air

RPM
from
the regulator

the

flow

Thus

nozzle selected

must be amount

adjusted

to deliver to
air

the

rig

compressed
suing through

to

motor
bit

204
progresses

operator
that

of

air pressure will

motor 204 so

RPM

203
at

drill rate

23

optimal Adjusting

RPM
screw 292
plate

formation
drill

87
string

an

of

penetration

by
as

threadably

connects

plate

293
to

maintaining
drill

RPM
at

an optimal optimal

As
drill

long
bit

order

to adjust

293
drilling

thus
rig operator
left

294

transverse

RPM
on
86 203

remains

that

23

flapper

291 292 298

As
plate

loosens to

adjusting pivot top of

will borehole
lator

bottom
formation
drill

to

drill

screw screw
plate to

293 is
adjusting

from

right about the pivot

through

87

Drill

string releasing

regu
cable

screw
to right to

292
about

regulates

suing
to

RPM
changes
drill

293

an

arc

from 294
the

left

screw 298

from drum

26
of

in response cable

string string

RPM
drill

position

nozzle deflects

flapper

291
air

As
from
nozzle air

The
bit

release

28

lowers

21

to

place

flapper outlet

291

flow

of

compressed
delivers

23

on
21 203

bottomt With
to
its its

bit

23

on
Once
the suing to

302

into

301
diversion

compressed

RPM
string lator
drill

decreases

optimal optimal

value value

RPM

of

to valve

239 The
and

compressed
to

valve springs

regu
lowering

239 and 304 open

243
valve nozzle the

compress
tightening

stops

the release

end

239
294

of
to into

string

21

screw

292
or

moves
eliminate

away

from

Drill

RPM
connects to
drill drill

203
string

includes

Bowdon
31
to sense valve further nozzle 55 to control

reduce
valve

of compressed

290 which changes 239

RPM
21

239
opening of
to

sensor

RPM
291 295
to

of

and

The
air

239

allows

air

from

the

accordingly

Drill

string

203 screw

supply valve to

flow from
air

cavity

305

306 and out
air

includes

adjusting safety

292

plate

293
with

from
flows

239 239

motor

204 Compressed
valve

294
291

spring connects

and

shut-down 290

valve

232-234
entering air

lock

end
spring

valves

236-238
it

open The compressed
and
gear picks unit
it

motor 204
to

screw
flapper talus plate the

297
291
order 291

295

connects

to

plate force

293
60

204

activates

rotating

As

air

motor motion

to

provide nozzle

rotates cable to
reel

differential

205
brake brake

that

near

294

Nozzle
of

294

mounts

on

206 which
braking

up

handle 32

via

207

293

to deliver variable
to

amounts
of

compressed
in response to

lessen

32
cable 23

exerts

on
to

drum 26
more
in decrease

diaphragm 243
string

Consequently weight
65 the

drum 26
string

28

place

changes
to plate

in

drill

Adjusting to adjust plate

screw 292
transverse

connects to flapper

21

on

drill

bit

causing

in order pivot

293

RPM
the

of
rig

string operator loosens adjusting

291

about

screw
of plate

298
293
in

That an
about

screw

292 cause

drilling

screw

292 of

to

swings

the top

screw 298

release

of

21

until

the

NOV

.2921

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 17 of 25

5474142
19
string its

20

level

RPM gauge
suing
drill

83

ingly

with

motor 204
speeds

rotating relative

more

slowlyThan
first

drumi
resulting

see
drilling jig

registers operatot the

and

displays

RPM RPM
the
drilling

the second in

up

to the

Accordingly
drill

slowing of the
first

dowa even

ltuthet

The

slowing cable

gauge
rig

83

RPM
screw registers

down
reel handle

removes
itto

the driving to lower

operator

loosening pressure

adjusting gauge

292
and

Alternadisplays
to

206

thus allowing

unspoolcable
handle

tively the

pneumatic of

287

20
its

With

208

lowere4
release

32 of

pressure

valve
isters

239
the

Thus
desired

compressed when

increases cable

drum
to
Its

26

pressure pressure

gauge

287

resulting

reg

28

slowing

calibrated

value
to releasing prevent suing drilling
drill

and
Salety

desired loosening

of
adjusting screw

239 the 292
no
longer

shut-down
regulator

knob 203

296

rig

operator string

With amount 204 204
of

screw 292 compressed
to
air

loosened
delivers to
air

during

either

valve

motor motor

conditions
lator

As
will in
drill drill

described
string

drill

string

regu
senses
flot

stabilizes

constant

amount engaged

As
against

203

21

result

maintains force so

brake

drum
release

26
cable

increase
at

RPM
RPM
cavern should
if drill

every
of

15 constant slowly optimal

Consequently

28

increase
drill

resull in the release

that the

RPM

of

suing

will
bit

21 For
enters
drill

21

breaks

ordrill

leveL

however At
tion
at

point the

drill

23
rate

progress of penetration
drill

through

forma
drill

suing

regulator release
drilling

202
strIng

not

release such

The
cotild

under

optimal

conditions
bit

rig

10

or create to the

situation drilling rig

even off

under

optimal requiring of

conditions
drill

23

will

rise

such

bottom
the
rises bit

RPM
drum
the

as

blowout
could event

injury

regulator

203
operators time Ta
drill

to readjust
drill

cable

26 Any

occur
of large increase

23

even

slightly
Drill string

RPM
37
with

in 291 from
nozzle tube causing

of

safety outlet

string
that

21

increases

RPM

sensor

measures

shut-down

pivots is

increase

supplies representing registered that increase

tube

290

301
pivots

under

normal

pneu
294
to
it

operation

matic suing

Any
it

increase causes flapper to

towards

nozzle

Bourdon expands

290
pulls

open

valve

294 However

nozzle

RPM

expand
to the

As Bourdon
connection

291
30

increases will
pull

an
flapper tube

operator against

set

to

flapper
at

291

at pivot

screw

291

minimum tube 290 shutdown knob safety
against safety
left

297
center

As

flapper

291

moves

right

pivot drive

screw
its

297
to

Bourdon knob

pulls

point nozzle

about outlet to nozzle

299 The 294

to

opposite

towards position
air

pivoting

of

296 screw 297 As
away from
nozzle exhaust

291

rotates in the

an

to the

about

end of 302
air

291
to
air

restricts

additional redirects

outlet

to

allow

compressed
corndelivers the

flow

from
flow
air

nozzle into to the

outlet

and

delivered

pressed

301
top of valve

Orifice

301

to

nozzle to valve

nozzle

delivers

no
valve release

compressed opening 204
increases
reel

diaphragm

243

pressed thereby
air

239
204
shuts off

239

closes the

239 With
an the with

239 opened
of

funhex

motor which

239
cable

motor 28

to stop

of

additional

amount which
it

compressed
In

air

drum 26

thereby

ending

opera

speed brake

rotatee

handle

response cable brake to further

Although
control lators

the operation

of

each

of

regulators

200-203

to

disengage cable an

drum
additional
drill that

Consequently

drum 26
drill

releases string

drilling

was

described

individually in

regu 23 one

amount
suing
decrease

Thus

lowering
bit

21

200-203

may be

switched to regulate

on

any
rate

combination
drill

Drum

lowers so

including string penetrates of into formation

the

bit than

on
21

an

in the

87
is

when more
to control maintain regulators act as to

may he
As
drill

effected

200-203 one
regulator while

utilized

opera
drilling secondary

RPM
sensor

returns

to

its

optImal

value and

tion
drill

adjusted

string

RPM

37
with

registers

decrease

parameter
supplies controls

remaining

Bourdon
ing within flapper pivot screw

290

pneumatic
decreasing causes
it

represent
fluid pressure 50 Illustratively weight torque could are 55 less regulator switched off to drilling fluid pressure regulator

The Bourdon
to tube The
left

200 and
drill

bit

to to

and
flapper
left

push 291
at

201 and
drill

switched

on while

string

connection flapper pivots pivoting about

regulator valve

203

297 With
its to

to the

at

pivot
its

is keep
torque

234

and 235
thereby string

screw
opposite nozzle

297

center the

to

drive

switched

238
regulator

open
and 232

moving
result top of

it

further

maintaining

suing 203
to

outlet

301
over

301

RPM
and
valves

regulator

and 233

compressed
outlet valve

243
compressed
less

while Consequently

are switched

on

allow

drilling fluid pressure

regulator respective

more 239 204
slightly

regulator

201

to

control

to deliver to

compressed slowly
reel In

236

an4
control configuration adjusted to pressure

motor

causing gear
unit

it

more

response so
that

60

In regulator selected tionally
bit

above 200
drilling bit

differential

205
Differential to cable real sensor rotation sensor gear

could

be

maintain an
drill

operator

brake
first

208
connected to wheel

unit

includes

pressure

within 201

string

21 Addi
to to

and 90
senses the shaft

second

weight
value higher selected pressure

would
the bit

a4justed required

connected cable

91
26 gear unit

90
to

the

rotation shaft of

65

maintain result

the

operator

drilling regulator

pressure 200 would
bit

As

of drum
differential

transfers that

provide

205

via

flexible cable

primary

of

the

drilling

while

NOV

Case 1:03-cv-02579-RPM

Document 140-3

Filed 01/11/2007

Page 18 of 25

5474142
21
regulator
bit

22
control in event

202 would decreased
drilling illustrates utilized

provide

secondary

511
drill

together string

so

that into

motors borehole

operate

in unison

to

drive

significantly
fluid

without

corresponding

503

507

Specifically

hydraulic
to

decrease

pressurt
fluid

power
waiting anchor

source

not and

delivers under the control and
to

motors
valve

FIt
system
cator cable pressure

low

level

and shutdown weight mdi-

505506510
509 As
motors

of hydraulic chains

with
in

cable

505506510
string

511

rotate into

508 and

depicted

FIG

As

described

512 engage
to exert Alt