Free Exhibits - District Court of Colorado - Colorado

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 1 of 25

restricts additional redirects delivers further motor
increases 206 raises that the

compressed air air to

air flow flow into

from

nozzle

outlet orifice 222

compressed

orifice of

222

compressed valve an with

diaphragm opened

240

thereby
air

opening

236

With amount

236 of

further
air cable

receives speed brake

additional which 208

compressed

rotates
brake
26 32

response
to further

reel

causing

disengage
28 an

from

drum

26
amount
21

Consequently
thus lowering drill bit

drum drill 23

releases

cable Drum 26

additional

21

lowers so

drill string
that an

until in the

again drilling fluid

bottom
within

increase may be

pressure

of the

drill

string 21
As

the

drilling

fluid

pressure sensor 34

returns

to

its

value
increase and

drilling
supplies Bourdon

pressure tube 210

registers

with
hydraulic and 213 pivot at pull pivot screw

representing pressure 213 to within the

increase
tube its 210 causes

increasing it to to flapper at

Bourdon right via

connection the

220
its

With

flapper 213
pivots about

pivoting to
pin 224 from

right its

screw 220
end to the

center

drive

thereby orifice while 222

moving delivers

further less 221

nozzle air over

221

result

top of diaphragm 240

exhausts

more

compressed compressed In 206 205 air to air motor

236

closes

slightly to deliver
to

causing
gear 208

rotate

more cable

slowly
reel unit

response
so that

differential handle first to wheel

unit

205

releases Differential cable sensor 90 the shaft than shaft slowing reel 90

lowers
to

gear 206 and

includes

connected
drum

second shaft of

connected

rotation sensor
to

via the

flexible rotation of

91
26 and

Wheel

drum rotation

senses

drum

transfers unit 204 up 205 via

rotation
flexible more to the

differential with

gear

cable

Accordingly drum

motor speeds
shaft

rotating relative even

slowly
first The from

26

second the first

resulting
down of

slowing down removes
the

further
force

shaft

driving

18--

WS00051

Case 1:03-cv-02579-RPM
cable brake
reel

Document 139-2
allowing With brake it to

Filed 01/11/2007
unspool 208 cable 207 to

Page 2 of 25

206 208

handle

handle resulting

lowered
the release

brake of

32

increases its braking
28

of drum

26

cable

slowing to
Safety

its

calibrated 217
front

value
functions to prevent string
21

shutdown
200

drilling during

fluid

pressure regulator drilling rig previously

releasing or

drill

either
As will

malfunction

dangerous fluid

drilling

conditions
200

described
string
21

drilling when

pressure decrease decrease of

regulator

release drill pressure pressure example

it senses not the every release stops

in drilling in drilling string

Unfortunately
should if or result in

fluid
For

drill

21

drilling drill bit

fluid
23

pump 25

pumping
drilling pressure release fluid

string 21 pressure
200 21 create

breaks
will

enters

cavern
fluid

decrease

however
drill could to of the

regulator

should not under
such

release

21
damage

The

of drill
10

conditions where

drilling

or

situation
In

drilling
in drilling flapper Bourdon fluid

occur
pressure
outlet pivots

the

large 217 pivots

safety

rem

nozzle 210

221
flapper valve an

That 213

under

operation

tube

216
However

thus

causing

nozzle pressure push tube 213 drops flapper

open

further
set

if drilling fluid tube 210 As

operator

minimum
shut-down safety

Bourdon

will

213

against flapper in an

safety

217

Bourdon

pushes rotates the

against arc to end the of

shut-down knob 217 pivot
pivots

flapper

about flapper 221 213

screw away

220
nozzle

result
outlet air 221

opposite allow from the

from

outlet air no

all

the

supply air to

216

Accordingly
and valve to drilling may

nozzle 236 the

216

delivers With of

compressed 236

closes release

valve
cable As 28

closed
drum in drilling

motor

shuts ending
the

26

thereby
bit

operation
be

weight

regulator

utilized weight rate

to

control 201

operation
changes in

Specifioally bit weight
regulate

regulator

measures

19
D0106.1

WS

00052

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 3 of 25

at

which

drill to

bit

23

penetrates the

formation

87
valve and 201 air
23

bit

weight 233 be the Bit through the

regulator 201 must be
sbiitched

drilling

operation

selector 235

switched off so

on
that

and

valve

selectors weight

232

regulator supply bit

regulates

flow

of regulator
87

air 201 am

from

the

air drill of

motor

weight

ensures rate

progresses by
23

formation weight

at

optimal
21

penetration drill

maintaining
at an

string As
23

applies string
21

optimal

weight
drill
drill

long will
86

as

drill

applies with

that

optimal

weight to

reside through

on

bottom

sufficient Bit weight

bit weight

borehole bit

formation

87
28

regulator 201
26

regulates

weight weight

by releasing

from

drum

in response

to hook

i.e
cable thereby

tension
28 lowers

increases drill string 21 to

by cable
drill of

28
bit

The
23

release

of

on
26 21

load release bit cable to to 28 until

weight
the

cab1

28
string the

continues to

to drill

weight

applies

returns

its drill bit
23

value
reaches

Once its

weight value
the

string bit weight lowering of

21

applies

optimal 28 to

regulator drill 201 35 includes to sense

stops

release

end Bit

21
tube changes in bit

weight to bit

regulator weight 237 sensor

which weight
and

connects to control

accordingly
adjusting 251

weight screw 252

regulator plate

further

includes and 250 and

flapper

251

nozzle 254
of tube 253 foroe on the in in

spring with

255
pivot

Flapper screw

connects

one 255

end

256

while to

spring provide

connects

flapper

251

in

order

restoring
Nozzle 254

that
plate air

maintains 253 to

flapper deliver

near nozzle
amounts 241 of 252 of 237

mounts from

compressed

air

supply

to

diaphragm Adjusting 253

in response to to 253

weight
adjust That about further

screw

order

to

to
screw 252 to

pivot
the of plate

screw 257
in an arc or

is
pivot from screw

swings position

257

nozzle plate

either
253

closer

flapper

251

addition

includes

pivot

20
WS
00053

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 4 of 25

pin

which In normal

provides

the

pivot Bourdon

point tube weight to

for

flapper

251
flapper amount variable 251

manipulates to valve of drives 200 vary the

in

response

to air

changes nozzle 254

in

bit

compressed

delivers the

237

That 237 air

amount of compressed the
force with before bit

air alters the

opening air

thus
motor

compressed fluid 254 and

204

However regulate to
supply

drilling nozzle

will must of

automatically calibrated
air to

weight

operator

selected

compressed

valve

237
To calibrate bit the

weight
drilling

regulator

201

and must

automatically
first once drill connect be

regulate manipulate bit cable
23

weight
brake
32

operatcrs

bit 23
the handle 254 to drilling

on bottom

resides 207 to

on
208

operators screw 251 252 so

brake

Adjustment to

must then
that

adjusted to move deliver
air compressed nozzle 254

nozzle air opens

relative valve

flapper

it will

delivery thereby allowing

of the

compressed
actuation

valve

237

of air motor
If

204
screw 252

adjustment

and
201

thus
will not

nozzle maintain no

254

remain

unadjusted
bit into 254

regulator

constant air

weight
orifice through

Specifically

flapper the

253

diverts air

compressed
into

260

and

all 259

compressed

nozzle

orifice

exhausts delivers in no

through

nozzle air

outlet
over top

261
of

orifice diaphragm valve brake cable nozzle selected bit 237 32 28

260
241

therefore
which

compressed 237

results

remaining no compressed drum 26

closed
air not

With

closed
remain which must

motor 204 engaged

receives

consequently
23

does

results

in drill

rising the

off
drilling 204 so rig

254

adjusted to
air

deliver
air

operator

mount
will screw 253

pressure to

motor

that optimal

weight

Adjusting
to adjust As plate

252

threadably connects

to

plate

253

in order

and

thus

nozzle
loosens

254

transverse

flapper plate

251

drilling

rig operator

adjusting

screw 252

21
ws
00054

Case 1:03-cv-02579-RPM
253 pivots from screw 252

Document 139-2
to swings screw right the 257 about top to of

Filed 01/11/2007
pivot plate screw

Page 5 of 25
is
left to of

257

That from

adjusting to right flapper compressed delivers compressed springs adjusting

in an nozzle deflects into 254 the

position 251

closer flow 260

result

air
the

from air 237 to valve

orifice

which

compressed into and valve

The 241

diversion down compress of to

drives

diaphragm

262

263 252

and moves

open nozzle

valve

237
away

The from air

tightening 251

screw

reduce or eliminate
The opening flow valve valve of from

the

diversion 237 264

of

compressed

valve
from from to The

237
air

valve cavity

allows into air cavity 265

air

supply
237 into

238
selector valve 232 237 238 and 239 locks

initially 236

because
air 204

valve

open
and

compressed
air

239

to

because 234 it

valves and and gear

were

previously air As

opened

by

valve

selectors

235
begins unit 205

compressed

entering air motor to

air motor 204

activates
differential

rotates

transfers 32 via

that cable

motion 207

cable

which picks
force cable brake
28

up brake
32

handle on

lessen drum on 26

braking releases bit

exerts more

drum

26
of

consequently
drill adjusting 21

to

weight

drill 252
21

23

drilling the release bit
23

operator drill the string
21

screw

to cause
on 82 21

of

until

string

resides

drill

desired and

weight

gauge

see

Fig
on

registers top of drill the

displays the
23

weight

applies

bit

for

the

drilling rig
gauge 81

operator

Accordingly desired
adjusting registers 254

when

string

weight

registers stops

bit

weight

drilling

operator

loosening gauge
air 266

screw and to

252

Alternatively
the

pressure cbmpressed

pressure of

nozzle

delivers

valve desired of

237

Thus

pneumatic pressure
air

gauge 266

registers desired loosening

pressure
rig

and
operator
stops

237
screw

the

drilling

adjusting

252

22
solo

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 6 of 25

With of compressed constant

screw air valve As drum
28

252

no

longer to

being air motor 204

the stabilizes to brake
32 26

237

delivers air

result

motor

maintains

engaged
will it optimal At
87

26 slowly

constant so that drill

Consequently
string 21 will

bit

weight
drill
23

should

progress

through

formation even under

at

the

optimal

rate conditions

penetration
drill bit 201 23 to will readjust rises

optimal thus cable

drilling

off
the even
28

requiring

bit

regulator

release slightly increases sensor with
in hook As its

26
the hook

Any time
experienced cable and
28

off bottom
That
35

is

the

tension that

within

increases

Bit weight 250

measures

increase representing by Bourdon

supplies that

hydraulic load

signal

increase
250 causes

Any it to

increase to the

registered tube to pivot
250-

tube

expand
right

Bourdon

expands
251

it pulls pivot its screw

via

connection right drive flapper at its

256

As

flapper about

251

moves
258 to of

screw

256
end

center nozzle

point

pivots

pin

opposite to air

towards

261
254 restricts and

pivoting

251

position flow flow

oloser

nozzle

additional that
the

compressed compressed compressed valve an

from nozzle
into

redirects
260

orifice

260

orifice thereby

delivers

air to with

the valve

top
237 of

diaphragm 241 opened
air

further 204

opening receives

237

air motor
sthich

additional it 208

amount rotates

compressed
In

increases 206

the

speed

with handle

response
32

cable disengage an

raises brake
from

causing drum

brake 26

to

further 28

26
thus
until in the

Consequently
lowering drill weight As to in its hook bit
23

releases

cable 26

additional drill that an 23

amount
21

string again string

21

lowers so

string increase

resides 21

on

bottom
onto

drill the

applies

drill onto
35

may be
bit

effected
23

drill

string applies
sensor

drill

returns decrease supplies

value

registers cable
28

the and

i.e

tension

by

23
R0104.1

Vis 00056

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 7 of 25

Bourdon decrease
tube its 250 causes

250

with

hydraulic fluid and push pivot screw end As

representing pressure within to with Bourdon left flapper pivots via 251

decreasing it to to left at retract 251 pivot

flapper screw

connection
to to the

256

pivoting
pin 258

256

its

center

about

drive nozzle air

opposite

right result

thereby 260

moving delivers outlet 237 closes

further from
less 261

261
over top

orifice while valve

compressed exhausts

diaphragm

241

more

compressed less

air

Consequently

slightly to deliver
to

compressed In 206 205

air to air motor differential brake first to shaft wheel drum

204 gear

causing

rotate

more

slowly
reel

response
so that

unit

205

releases Differential
cable reel 90 206 via the gear

lowers connected
rotation rotation sensor to

unit

includes shaft

connected

sensor
90 the

shaft rotation of of

cable 26

91
and

Wheel

senses second

drum

transfers unit 204 205

that rotation
via flexible more to the

shaft

differential

gear

cable slowly first

shaft

91

Accordingly
the second shaft shaft shaft

motor speeds

rotating

than
shaft slowing

up relative
down the even driving cable

resulting

in the

first

slowing removes to

further
force to lower 32

cable
brake

206
handle
its its in

thus

allowing With brake

it

unspoo
208

208

handle resulting

lowered release

brake

increases
28

of drum

26

in the

cable

slowing to
As shown

value Fig
drill string torque

regulator 202 Specifically
in drill string

nay

be

utilized to
string to For drill torque

control 202 rate which

operation
measures drill 202 be changes 23

torque

penetrates to control

formation

87

torque valve selector and 235

regulator 234 must be

drilling

operation
selectors string from

switched
off so

on
that

and

valve drill air

232

switched

torque regulator
the air supply ensures to

202

regulates

the

flow
Drill

compressed
string

air

motor
23

204

torque 87

regulator 202

drill

progresses

through

formation

24
0106.1

WS

00057

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 8 of 25

at

an

optimal

rate

by

maintaining drill reside
86

string torque remains

torque at an at

optimal

level
drill to regulator from

As

long
23

as

optimal bit

level

will

on
formation torque in

with

sufficient Drill string releasing

through drill to

87

torque
28

202 26

regulates in response 28

string changes

cable

drum

drill 21 to the its its

string torque place torque optimal optimal
of cable drill drill

The
23

release

lowers

drill
23

string

on
21

With applies the torque torque of regulator torque and 202 to to drill of bit

on bottom
increases 21 to

23

value value
28

Once drill end

drill

string 202

reaches the

string

regulator drill 202

stops

the torque drill

21
includes 36 238 to sense 270

Drill

string to 21

which connects
drill string

sensor valve

changes

in

accordingly

string torque screw 272 knob
pivot 271 271

regulator

further includes

flapper

271

adjusting

273
Flapper 271 while provide spring

274

spring one end

275

safety Bourdon plate tube and 270 with

276
screw in

277

275

connects

flapper flapper deliver

order nozzle amounts 238 screw

restoring 274 air to mounts from the on

maintains plate 273 to to

near

274
compressed in 272 response connects flapper 271 the

variable 242 of

air in

supply

diaphragm torque

drill

Adjusting
273 adjusting pivot from which In

plate

in order

adjust

plate

pivot
tori

screw
273

278
in an

That
arc or

is

screw 278

272 to

swings

of 274

plate

about

screw
flapper

nozzle

either 273 includes

further pin 279

271
the

addition
pivot point

plate
for

flapper 271
270

normal to air in

Bourdon

manipulates
to

flapper amount

271

in response

string torque delivers to valve

vary the That

compressed
amount the

nozzle

274

238

variable

alters

the opening of
air

with

which

the

compressed string

drives

air

motor
202

204
will

However

before

drill

torque

regulator

sQwd

25
WS000SS

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 9 of 25

automatically
271 of

regulate

drill to valve

string

torque

nozzle

274

and

must be

calibrated air to

driller

operator

selected

amount

compressed
To

238
torque regulator 202 so

calibrate

drill

string drill

that

automatically operators bit
23 must

regulates first

torque
manipulate
23

drilling 32

manually
Once

brake resides to

to place

drill the

on bottom
operators screw flapper 272

drill cable

on bottom
208
nozzle air

drilling Adjustment relative to valve valve

connect

brake to move

must
so

then
that of it

adjusted deliver air

274 to

271

compressed 274

delivery

compressed the 272 actuation

by air motor

opens

238
If

thereby

allowing screw string

204
274

adjustment drill

and

thus
202

nozzle will not 271 compressed through

remain

unadjusted constant

torque regulator Specifically

maintain
diverts air no

drill

string

torque

compressed into nozzle

air into 274 through

281

and

all exhausts no

orifice 280

nozzle air ovet

282
of

Orifice

281
which results 204

delivers valve receives

compressed remaining

top

diaphragm 242
238

valve

air motor

no

compressed 26 does

air causing
not

brake 32 to remain
cable which 274 must

engaged
in drill bit 23 to air pressure will 272 be rising the

results be

off bottom
rig that

nozzle
selected drill

deliver
to air

drilling 204 so

operator optimal

amount torque screw 273

motor

string Adjusting

maintained
connects plate transverse in order

threadably

to

adjust As

plate

and
rig

flapper screw

271
plate

drilling pivots from

operator to left
the

tightens

adjusting screw 273 in

272
That from

right

pivot

278
an arc

is

adjusting

screw about

272

swings

top of plate
to position 271

right to flapper

pivot

screw 278

nozzle

274

closer
of

271
air

As from

result
nozzle
air 238

flapper

deflects 281 diversion down

compressed
delivers compressed the

outlet
to

82
238

into The

which
of

compressed valve

valve

the

air into

drives

diaphragm 242

compress

WS
is

00059

it

Case 1:03-cv-02579-RPM
springs screw
283 272 moves

Document 139-2
284 and open 274 of 238 285 allows into air 233 valve away

Filed 01/11/2007
The loosening to air into valve air and flows 236 and from

Page 10 of 25

238
from

nozzle

reduce

or

eliminate the
The

diversion of from

opening flow valve valve

valve cavity

compressed cavity 286

air

supply
238 into

Compressed 232 air flows valves and

initially lock valves through

238 237 239

because The

open
to air

compressed 204

from 239

valve was also

valves

motor

because

previously

opened
activates differential

selector 235
it and begins 205 32 via cable it

air entering

motor rotates
206

rotating

As

air motor to

204 cable

gear unit
up 32 brake exerts

motion 207

which
brake to

handle on

lessen drum 21 drill on

the 26

braking force
releases 23 21

drum

26
of

consequently
drill torque

place

more

weight the

drill

causing

an

increase

string

applies

to drill

bit

23
drilling operator drill
23

tightens
21

screw 272
the torque drill

to

cause 21

the

release
to gauge for torque

of

until its

applies torque torque string the

drill
82

reaches

flrill

see
drilling rig

registers

and

displays

drill

string drill

operator
the

Accordingly
drill

when

gauge

82

registers

desired

string

torque

drilling

operator pneumatic of the pressure

tightening
287

adjusting

screw 272

Alternatively
the

registers and displays
274

pressure

compressed pressure gauge the 287

delivers
the

to valve
desired of valve screw

238

Thus
air

pneumatic pressure rig

registers

compressed

and
operator

thus

desired tightening

opening

238 272

the

stops

adjusting

With adjusting
of constant engaged will

screw

272

no

longer to

being

tightened
204

the

amount

air valve

238

delivers air

air motor 204

stabilizes to
brake 32 26

amount drum 26
28

motor

maintains

against

constant
so that

force
drill

consequently string 21
will

release

maintain

27
aoioi
.1

/1

ws0006O

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 11 of 25

drill

string

torque

at

its

optimal
23

level
progress through formation even

At
87

bit optimal rate of

should

at the

penetration
bit torque
23

Unfortunately
will rise 202 to bit
21

under

optimal thus
requiring

conditions drill
28

of
readjust
23

regulator

the

release slightly oft bit
23

from

drum torque string

Any time
drill torque 270

rises

even

bottom
Drill

applies
36

to drill
that signal

sensor with sensor

measures

decrease

and

supplies that

Bourdon

tube the

hydraulic depicted depicting

representing
is utilized 11 is

torque torque

Fig
in

10

Alternatively1 Bourdon decrease 270 causes

if the 270 in it 271

sensor

Fig
In

utilized

receives
string

pneumatic torque

signal
registered tube

either Bourdon

case
tube

by
270

contract
to

contracts flapper 271 screw

it drives pivot its

flapper screw

the left
flapper

via

its

connection
left to drive of

to

277

moves pin 279

pivot its

277
end

center nozzle closer from into top valve of outlet to nozzle orifice of

opposite
271 to

towards

282

The 274 282

pivoting restricts and

flapper

position air flow flow air to With

nozzle outlet

additional

compressed compressed compressed
valve an additional

redirects 281 delivers

that
the

281

orifice thereby

diaphragm 242
opened

opening
204

238

further
air cable

air motor

receives
the

amount

compressed In

increases 206

speed brake

with

which
208

rotates
causing brake 26

response
32 to

raises from

handle

further
28 an

disengage additional drill that 23 its increase or an

drum

26

Consequently
lowering drill torque As string sourdon bit
23

amount
21 until in

21
again string resides 21

Drum

26

lowers so

string increase

on
to

the

drill drill torque tube

applies torque

drill to

may be

returns

value
and signal

sensor 270 that with

36

registers

that

either The 270

pneumatic

representing pressure

increase

increasing causes
it to

fluid and
pull

within

Bourdon

28b01043

WS

00061

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 12 of 25

flapper 271 screw

the with

right flapper

via 271

connection pivoting pin 279 to to

to the

flapper right its at

at pivot

pivot screw to
As

277
its

277
the

pivots thereby moving 281 while

about it

drive

opposite

left

further less ottlet 238 204 compressed 282 exhausts slightly to

outlet air

282
top

result

orifice

delivers nozzle valve

over

diaphragm

242

more to

compressed
less

air

consequently
to

closes causing unit 205

deliver more reel 205

compressed In response that brake
first shaft to

air motor

rotate cable unit

slowly
so

differential 208

gear

releases gear 206 via the and

Differential to reel sensor 90 90

includes

second

shaft

connected

wheel

drum

rotation sensor to cable slowly first The from brake its

flexible rotation of of

91
and

Wheel

drum

rotation

senses second

drum

transfers 205

that via

rotation flexible more to the

shaft

differential with shaft shaft shaft to

gear unit motor
speeds 204 up

shaft

91

Accordingly
the

rotating relative

second first

resulting slowing down

in of the

slowing
removes unspool

down the

even driving

further
force lower

first

cable

206

thus

allowing

handle
of its

with

handle resulting

lowered the release
Safety torque of

32

increases 28

cable

slowing to
276

calibrated to

value
drill during

shut-down 202 from

functions drill

prevent 21

regulator

releasing
or

string drilling

either
As will

drilling previously
release

malfunction

dangerous

conditions

described
string 21

drill

torque it senses

regulator in drill

drill

when
not

decrease

string

torque
should drill string 202

Unfortunately
in the

every
of

decrease
string
23

in drill

string torque example
if

drill

21

string

21

or

drill

bit

cavern
torque

drill

will decrease release under such

however string

drill

regulator
of

should 21

21
damage

release
drilling

drill or the

string create drilling

conditions
such as

could blowout

rig 10

situation
rig operators

where

injury to

could

occur

29
WS
00062

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 13 of 25

In

in

drill from

string nozzle 270 274

torque
outlet pivots
to

safety

shutdown That
271

knob under

276

pivots

flapper

271 Bordon

282

is

normal nozzle

operation

tube nozzle

flapper valve operator against

towards

274
if

thus

causing

open
an

further

flowever

torque tube will Bourdon

drops flapper 270

minimum
safety

Bourdon knob

push

shutdown
safety right

276

pushes rotates

flapper 271
in an

against to the of

shut-down screw away

276 277

flapper

about pivot
271 pivots

result outlet

the to

opposite

end

from

nozzle

allow nozzle
from the air no

282 supply

to exhaust
to air to 204 shuts

compressed

air delivered

274

Accordingly
and off the valve to stop

nozzle
238

274

delivers With
of cable As

compressed 238

closes
release

closed
drum in

motor

28 shown

26

ending string

drilling regulator

operation may
be

Fig

RPM

utilized to string RPM
regulate For the

control

drilling operation
203 measures drill 203 be off so changes 23 in penetrates to control switched that string

drill RPM
to

at string valve

which

formation

87

drill

RPM

regulator
235

drilling

operation
selectors RPM

on

and

valve string
air

232-234 203

be switched
regulates the Drill

only

drill

regulator air bit 23

compressed

air from

supply drill

notor

RPM regulator
formation string at sufficient Drill string cable 87 an an

ensures

progresses by

through

optimal
optimal

penetration
As bit long 23 as will 86

maintaining
string

drill

RPM

level
drill drill

drill reside

RPM remains
with

optimal

level
to

on bottom
formation RPM

bit weight

borehole regulates response lowers drill

through

87

RPM regulator
28 from of 26 in
28

drill to

string

releasing string

in drill
21

RPM
23

release

cable

drill

to

place

drill string

on
its

With

bit

23

bottom
the RPM of

drill

RPM decreases
21 reaches release its of

value
drill

Once string

drill

string stops

optimal cable
28

value
to

RPM regulator 203

sota.

30
ws
00063

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 14 of 25

the

lowering
Drill

of

drill RPM

string

21
203

string drill

includes
37

Bourdon sense 239 changes

which in the Drill

connects
of

to

string
21

RPM

sensor

to

drill string
RPM

and

control further includes spring one 295 end

accordingly

string

regulator plate Flapper 291

291 295
of and safety tube

adjusting

screw 292 knob pivot screw
291 291

nozzle

294

shutdown with

Bourdon plate

297
to

while provide

connects force mounts on

and

inorder
near

restoring Nozzle 294

maintains plate 293 deliver diaphragm

nozzle

294

variable amounts
243 of screw 239 292 in response

air from to to 291 the nozzle 294 about

the air supply
in

adjusting
293

connects flapper

293

in order screw 293 either

adjust

plate

transverse
screw 298 292 to

pivot

298
in an or

That

is
about

adjusting pivot
screw

swings position

closer

further pin 299

from flapper which
provides In in normal

291
the

addition
pivot point Bourdon drill

plate

293

includes

291
290 string to manipulates vary the That flapper amount of

operation
changes nozzle in 294

response

to air

RPM to valve

compressed amount of
the force

delivers the

239

variable

air alters

opening
air

of valve air 203 will

and
motor

with

which

the string

compressed

However regulate

before drill
drill to string supply

RPM regulator
nozzle 294

automatically
must

RPM

and
selected

calibrated compressed to

driller

operator

amount

of

air to valve
drill

239
string drill RPM

calibrate

regulator

203

so

that

it rig

automatically operators bit
23

regulates first

string

RPM
brake resides

the 32

drilling
to place

must

manually
Once

manipulate
bit cable be 23 207

drill the

on
operators

drill

on bottom
handle

drilling Adjustment relative to
valve

connect

208
294 to

screw
flapper The

292 291 so that of

adjusted

to

move

nozzle air

it will air by

compressed
nozzle 294

239

delivery

opens

P0t06.1

WS

00064

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 15 of 25

valve

239
If

thereby screw string

the 292

actuation

of

air motor

204
294 remain

adjustment drill drill air 294

and

thus
will flapper compressed through not

unadjusted constant compressed into nozzle

RPM

regulator

maintain diverts
no

string

RPM

Specifically

orifice

301

and 300

all exhausts no

air flowing nozzle air outlet top With

orifice

302
of

orifice

301
which results 204

delivers in valve receives

compressed remaining

over

diaphragm 243 closed
to
28

closed

valve brake cable nozzle

air motor

no

compressed drum
26

air causing
not

remain

engaged
in drill to

does

release

which

results be of

bit

23

rising the

off bottom
drilling 204 so that optimal

294 amount RPM

adjusted air be 292

deliver to air

selected

pressure

motor

drill string
Adjusting

will

maintained
threadably connects 294 to transverse screw 293 to

screw 293

in

to

adjust As pivots

plate

and

thus

291
293

drilling from screw about 292

rig operator to swings right the about top

adjusting pivot screw 293 position

292

plate

298
arc 294 the

That from closer flow
301

is

adjusting to right

in an

pivot As from

screw 298

nozzle deflects

to of

lapper

291

result
nozzle
outlet to 239 302

compressed delivers
the

into The

orifice

which
of

compressed into valve and moves the

valve

239

diversion down to

the

compressed
springs adjusting reduce or The supply 239 239 to

air

drives valve
294 of away

243

compress
of

303 screw

304 292

open nozzle

tightening
from flapper 291

eliminate opening of from air

diversion
239 305

compressed
compressed 306 air lock 204

air into air and flows

valve

239

valve cavity

allows into

from

the air
valve

into

motor
selectors

compressed
232-234 motor

initially valves

to valve

because

236-238 and gear up

open
begins unit

The

compressed

air entering As
that air motor

ir
204

activates differential

rotating
transfers 32 via

rotates
reel the 206

205

motion to
207

which picks
force brake

brake
32

cable

braking

exerts

on

32
$0106.t .-ii

WS

00065

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 16 of 25

drum weight RPM
of

consequently
drill string 21

drum on

26

releases bit
23

28

to

place

more
in the

drill

causing

decrease

drill

21
operator adjusting 21 until the RPM screw of gauge for RPM drilling 292

drilling the of its

to cause string
21

drill

string

drill
83

reaches

desired and

level

Drill

string

see Pig
drilling
83 rig

registers operator the
desired

displays when

string drill the

RPM

the gauge rig

Accordingly
drill screw and to the of

registers
stops

RPM 292

operator

loosening adjusting gauge nozzle gauge
the 287 294 287 registers delivers registers

Alternatively
the pressure of

pneumatic

pressure air

displays

compressed
pneumatic

239
desired valve

Thus

pressure

compressed

air pressure rig

and thus
stops

desired

239

the

drilling

operator

loosening
With of

screw 292
screw air valve 292 no longer to being

loosened
204

the

delivers

air motor 204

stabilizes to brake drum
21 32

constant engaged will will
At 87 at this optimal against drum

As at
28

result

air motor

maintains

consequently
so that the RPM of drill

release

cable its

slowly

level
drill rate of bit 23 should progress through

formation even under

the

penetration
bit
23

optimal thus release

drilling conditions
drill cable
28

will

rise to

RPM

regulator Any time drill 21 and

readjust
23

the

from

26

bit

rises even
Drill Bourdon

slightly Hoff
string tube RPM 290 sensor
37

RPM of drill measures
that increase

increases
supplies

with

signal

representing

that

increase

Any

increase it to the

RPM registered by Bourdon
As to 290

290 causes flapper 291 screw 297 point pivots

expand

expands

it pulls at pivot

right 291

flapper about The

moves right to drive
of

at

pivot screw opposite
291 end

297

its

center nozzle to

299

302
nozzle
294

pivoting

to

position

33
WS00066

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 17 of 25

restricts redirects delivers further motor
that the

compressed air compressea valve an air to

air flow flow the valve amount In brake 26 32 into

nozzle orifice

outlet

302

and

301

Orifice 301

diaphragm 239 opened

243
air air cable which reel

opening

239

With

204

receives speed

additional which 208 it

compressed

increases the
206

with

response
to further

raises brake
drum

causing

from

26
amount
23

Consequently
lowering drill bit

drum

releases

cable

28

an

additional drill that

string
23

21 on
be

lowers so

string

until the

again string

resides 21 may

an decrease
As drill
37

RPM of

drill

effected
drill string

string

RPM that

its optimal and

value

RPM sensor with
either

registers pneumatic

supplies that Bourdon left

Bourdon The tube its 290 causes

representing pressure 291 screw within to

decreasing
it to

hydraulic and

fluid push

contract

via

connection pivoting to

to the

flapper 293
left at pivot

pivot screw end

297
its

With

flapper pivots about

297

pin

299

drive nozzle compressed exhausts
air

right
As

thereby

moving
301

it further delivers less 302

302
over top

result

orifice while

of

diaphragm 243

nozzle valve

outlet
239

more

compressed less

air
compressed In air to

closes it 205

slightly to deliver
to rotate more

air motor

204

causing unit

slowly
reel

response
so that

differential gear brake handle shaft
to wheel 208

releases Differential cable sensor
90 reel 90 206 via the gear

206 205

lowers
to

unit

includes

connected
drum

connected
shaft rotation of cable 26 and Wheel

rotation
sensor to

drum rotation

senses

rotation unit 205
204 up

the second shaft than
shaft

shaft

differential

gear

via more
to

cable slowly first

91
drum

Accordingly

with

motor

rotating relative
even

26

the

second the first first shaft

the

resulting
down

slowing down removes
to the

further force to
from lower

slowing
cable

the

shaft

driving

reel

206

allowing

unspool

207

wS0006l
._

Case 1:03-cv-02579-RPM
brake

Document 139-2
208

Filed 01/11/2007

Page 18 of 25

handle

with

brake

handle resulting

208

lowered
the release

brake

32

increases its braking
28 slowing Safety to its

of drum

cable

value
knob 296 functions drill or dangerous RPM increase drill string RPM to prevent
21

shut-down 203 from

drill

string

RPM

regulator

during

either As

drilling previously drill

malfunction

drilling

conditions
203 will

described
21 not

drill it

release

string

sensesa
increase

string should

RPM

Unfortunately
in the or

every drill

string enters

21

example cavern
RPM drill

if drill string

string

21

breaks

drill

bit

23

RPM should

will

increase

however

drill

string The release

regulator drill string
21

not
such such could

release drill conditions
as blowout could

21
damage where

under

drilling rig 10
injury to the

or create drilling

situation

well

rig operators

occur
In the 296 of large increase 291

RPM
from nozzle
tube 290 294 outlet

safety

shut-down knob

pivots

flapper

302

That

is

under

normal

Bourdon

pivots to open an

towards

294
However
if

thus

causing

nozzle

valve

239

further
set

string RPM
tube 290 will pull

increases flapper pulls

above 291

operator

minimum

Bourdon

against
291

shut-down

knob shut-down

296

Bourdon

tube 291

flapper in an

against
to end the

safety
left

296
screw away all

flapper

rotates

about 291 302

pivot
pivots

297
from

opposite to allow from

flapper outlet

to

exhaust

compressed

air delivered nozzle 294

the

air no

supply
compressed

nozzle air to motor

294
valve 204 ending

delivers
With of

239

and valve
off to

239

closes
release

valve cable
28

closed
from

air

stop

drum

26

thereby

the drilling operation
of was in

Although control 200-203

each

of

200203
individually

to

drilling operation
may be switched on

described
any

regulators
all of

combination
23

including into

them

regulate

rate

drill bit

35
WS
00068

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 19 of 25

87
to

However
control

when

more

than

one

of

regulators one

200203
is the

is

drilling desired as drilling

regulator while

adjusted

to

maintain regulators

parameter

remaining

secondary drilling could be

controls
fluid pressure on regulator drill 200 string be and

Illustratively weight regulator 202
of That 238 and valve 239 and 201

bit

switched RPM 234

while

torque

string selectors

regulator and are

could switched drill

switched to torque

is
and 202

valves

open
drill

thereby string

maintaining

string

regulator selectors pressure their
In

RPM mgulator
on to allow

oft

while valve

are regulator 200 valves the could be 236

switched

drilling 201 to

bit
and

weight

control

237
drilling fluid

pressure selected bit value

regulator drilling fluid weight higher selected pressure

adjusted

to

maintain string

an

operator

pressure 201 bit

within drill
be

21
to

Additionally
bit

would then

adjusted to

weight
the

required pressure would
provide

maintain

drilling regulator

fluid 200

result
primary 201

drilling fluid
control would of the

drilling operation
secondary in corresponding the

bit weight event bit

regulator

provide

decreased fluid warning

significantly pressure
and

without

decrease
low

in drilling fluid level

Fig
system utilized
depicted weight in

shutdown

with
as 145 thus

the

drilling cable

anchor

weight

Fig

previously
arm

described
147

cable
exert 148

indicator

to

pressure
to apply

against
force

diaphragm
against the the

148

compressing
fluid

hydraulic
pressure to the

148
148 experiences fluid cable

Unfortunately
results in

constant

diaphragm point where

deteriorating With

hydraulic
drilling

from

it

insufficient
145

hydraulic value Accordingly
to the

weight
less 33

indicator actual

bit weight

which

bit

weight

were

utilizing

bit weight

drilling operation

it would

36
WS
00069

WS

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 20 of 25

receive though weight

low there will an

bit already was past

and sufficient acceptable bit

the

drilling

even bit

weight

consequently
resulting

increase inefficient

levels

in
maximum

minimum

drilling rig drilling rig operator
To and 402 indicate when 400

that

equipment

or possibly

causes

casualties
148 mounts 148 onto loses

fluid

low

fluid Plates means

warning
and

shutdown

system onto

diaphragm any for

148

mount

diaphragm to provide

using
base

suitable air valve valve to valve 404 405 404

such Low

as

screws or warning

welding

fluid as

and The air supply to air flow

400

includes

which

relay turn
and air

shown

connects

valve selectors further valve

which

connects

212 294
Valve

nozzles

216 403
which controls fluid 404 loss

connects
in the

diaphragm
from open

event

of

hydraulic valve driller driller if
33

diaphragm to pass

148

During

normal

operation automatic automatic

remains thereby

compressed normal

air

to of

33
as

operation

previously
403 detects hydraulic 404 an to shut fluid off arm loss from

However diaphragm
driller serves

air it

valve

148

will

close 403 to includes

automatic 406 which in

33
as

Air the

valve

adjustable hydraulic

sensor Air

detect
403

level air that from

diaphragm 148
supply air vents

valve

receives
no

compressed fluid an

the air

orifice the if fluid

407

loss

compressed

crif ice and 402 compress

shown
arm 406
air

However
so out 404

loss

occurs

plates

401 to

that
orifice to

shunt

the

compressed
air With air to

408

orifice

408

delivers

the

compressed

valve 404

diaphragm
automatic the

405
33

and

thus
no

404
compressed

valve

closed
of to

driller

receives

turns 408

drilling operation
air to low weight an

Additionally

orifice
the

delivers rig drilling

compressed
of cable the

air horn which warns condition
in

drilling
148 of

fluid

145

370007

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 21 of 25

Fig
driller of tubing

14

illustrates present

second invention tubing

embodiment configured drilling to

automatic regulate 500 includes drill string string torque in coil pipe includes coil

the

drilling 501 not to

rig
drive

mud motor
503

drill

502the RPM need

consequently
drill is is

rotate
drill

and
string

regulator and tubing wound
drilling

regulator 503

eliminated
flexible rig 500 which

500
drum

drill coil

spool

504

drilling

hydraulically drill string couples together
503 into delivers

driven 503 and

motors

505

506
504

510

and

into 512 couples to

507

chain 510

508

motors so that

506

chain operate

and 513

motors

in unison

drive power

drill source

507

specifically
fluid to

hydraulic

not
511

shown

505
As

506

510 505
503

and

under the
and it may from 511 into borehole chains 508 and

valve 512 engage

motors

510
lower and string 511 503 coil

drill

string

507
the

Alternatively
opposite respool

motors to pull

506
drill

be driven borehole
507

direction it on spool

and

504
fluid

Finally

tubing
that

drilling the

500

includes fluid necessary to sensor fluid 522 in

pump mud

not

shown

supplies

drilling 520

to

drive

motor 501
pressure

Automatic sensor
521 and bit

drilling
order bit to

fluid receive

representing second
the while

drilling

pressure fluid or

and

In

this

embodiment
depicted weight

drilling in 522

pressure the

sensor 521

may be
in

either

sensor

sensor

depicted

rig
load

sensor

may

be

MartinDecker transducer could
In

hydraulic
be

cell
for the

Alternatively Martin-Decker
output to of

pressure

substituted

hydraulic
the

load

such input pneumatic

case

the an

electrical electrical

transducer
so

would
that to

be

transducer

signal

representing Automatic regulator
drilling

would be
520

supplied

automatic

driller 520 pressure operation
to

includes both in 200

drilling

shown
pressure

regulator

depicted

in

polo

WS000I1

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 22 of 25

Additionally measure
bit

if the

Martin-Decker automatic driller both 201 depicted determine regulator pneumatic by 520 in

load includes

cell

is bit

to weight to the

weight shown
regulator

regulator
bit

and

operation
if

weight

However
bit

pressure

transducer includes

used weight

weight

automatic pneumatic
signal

driller 520 Bourdon either
identical

employing

tube
weight to regulator

the

utilized output

automatic of bit

driller weight

520

is

signal

regulator

201
The drilling
the hydraulic fluid pressure pressure regulator representing sensor into 521 of automatic drilling and signal regulator regulate fluid 520

receives from
in

pressure any

drilling

changes

drilling fluid changes pneumatic

pneumatic pressure order

those
its

The

drilling to valve of

fluid 523 in

diaphragm
the

524

and

thus

the

opening automatic

valve

524

similarly
receives the

bit

weight or

regulator pneumatic
and converts

driller 520

hydraulic

representing
any changes in those fluid

weight pressure The valve of

sensor 521
into

pneumatic regulator
to

signal

representing
its 526 520

changes
to opening

bit 525 in

weight order

pneumatic

regulate Automatic

and

thus
includes

valve

525
527 and

selectors and

528

which

are

identical depicted operator
the

both in

in That

operation
valve 520 if both

to

valve
527

selectors and regulator are as the 528 respective to

232235
the will

is

selectors

automatic

driller or

which

control

drilling

control

drilling operation

concurrently

Additionally regulator selector to their

in automatic bit to

33
regulator
an air 523 525

the

drilling
selector

pressure

valve
to

527

and

valve air

supply
and

deliver

compressed

valves 523 except

525
similar to valves
are of

Valves
driller

are

33

they

pneumatically operated

39

WS

00072

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 23 of 25

valves
and air

utilized

to deliver

hydraulic valves

fluid that

to motors deliver and

505

506

510

511 rather motor

pneumatic

compressed are

air to they drive into

204

Thus
fluid and

when from 511

open
to 503

deliver motors borehole

hydraulic

hydraulic thus lower

power drill

source

505 507

Automatic manual
control That motors if

520

functions

to and

eliminate via 15 to 528

the

need

for

505

506
fluid

510

hydraulic be opens

valve

509

is

drilling

pressure selector

utilized to valve

control the drilling
and drilling to rig

operation
operator drill

valve

525

adjusts 502

drilling

pressure

regulator once
drill the

maintain 502

on bottom
the fluid drilling pressure

Speoifically
operator

bit

resides screw that

on
of drilling the

adjusts open

adjusting 523 so to

regulator to
delivers

valve

hydraulic

power and

hydraulic motors

fluid

505
511 rotate

510

511

Consequently
of increase

505
503 onto

place

additional
in

drill string drilling operator
fluid

drill within adjust until

502
drill the

resulting
string

an

pressure continues to

503
screw of

drilling
drilling reaches its is

adjusting fluid

pressure

regulator After

pressure fluid

optimal reached At

value

optimal of the

drilling
screw

pressure

adjustment this

adjusting
hydraulIc to motors 503

point

power

will and drill 511

deliver
so 502 that

sufficient
they will drive the will

fluid drill optimal

505

506

maintain
fluid

on
drill

bottom
bit 502

pressure

However

invariably borehole

rise

off bottom
that

during some
the in

point in the

drilling of pressure

507
register

occurs

drilling

regulator open deliver As 503 valve

pressure and
source will

523

further

so

that
fluid

the to

hydraulic

power

additional

510
drive drill

and

511

510
further

and

511

will place fluid

drill bit

string 502

within
the

borehole

507

again

on

appropriate

40
0106.1

WS

00073

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 24 of 25

pressure

Once

the the to fluid
if

drilling drilling maintain pressure bit weight

fluid fluid

pressure

returns

to

its close

calibrated value valve optimal
slightly drilling

pressure bit 502

regulator

will

bottom
string

with

the

within be 527 weight

503
to control and to the

Alternatively drilling drilling drill resides adjusting
the 502

utilized opens

operation
operator

valve

selector bit

valve

adjusts

maintain bit
502 the

Specifically
drilling of bit weight regulator rig to

once operator open

drill

on
screw

adjusts 525 so

valve to

that

hydraulic

power

delivers

fluid

505
and
511

506

510

and place The screw

511
additional weight rig of the upon bit bit drill 502 of drill

505

506

510
503 to

rotate bit

onto adjust weight

drill the drill

502

operator

continues until reaches its

adjusting string After
503 the

the

place optimal screw

weight

reached

adjustment

of

the

adjusting
At

this

point

the

hydraulic to motors 503

power

source

will

deliver so that

sufficient hydraulic they
will drive drill

string
bit

maintain

drill drill the

bit
bit

502 502

on
will

bottom
invariably

with

sufficient

weight
during

However
some the and point

off bottom 507
When decrease in

drilling of will

borehole

occurs

bit open

weight valve

regulator
525

register the that the
fluid to 510 and 507

further so hydraulic

hydraulic

power

source

will and

505
511 to

506
will drive place drill

511

As string 502

result
503

motors

505

506

drill

further

within with
the

borehole appropriate

again of its 525 503

bit
503

on
on

weight

residing the bit

top

bit regulator

weight
will with

returns valve string

calibrated
to maintain the of

weight 502

close

slightly applying

bit weight to

on bottom
bit

optimal
the

drill

502

Although regulator and the bit

drilling control

pressure drilling

weight

regulator

41
soloss

WSQfJO74

Case 1:03-cv-02579-RPM

Document 139-2

Filed 01/11/2007

Page 25 of 25

operation switched formation drilling desired
on

was to

described regulate rate both one drill bit

both 502 are

regulator penetrates utilized to to

may into

be the

However

regulators is the

control the as

regulator while

adjusted

maintain acts

drilling

parameter

regulator

secondary

control
when both the are are drilling to control switched bit and fluid pressure the on to pressure drilling allow regulator

specifically
and

the bit weight
selectors pressure respective the

regulator 528 and

operation
drilling control control could pressure

valve fluid their

527 regulator valves

the to

weight

regulator the regulator

523

configuration
adjusted to

drilling an

maintain string

operator

selected

drilling the bit weight

within
would then be

503
to

Additionally
bit the operator fluid

regulator
the fluid

adjusted to

higher selected pressure

than

weight

required As primary

maintain the of

drilling

pressure
provide

result
control would

drilling the

regulator
while in the decrease the bit

drilling

weight weight
drilling

provide

secondary without

bit
in

significantly

corresponding

pressure
present invention such as will has

Although
the foregoing

described

in terms

of

description has apparent
to and the is scope not of be

for exemplary ordinary variations of

purposes in the

only and art
many

alternatives
will fall

varying

degrees That the only

present
limited it is in to any be

invention
respect defined

scope
foregoing the

accordingly description which

but

rather

claims

follow

-42-