Free Exhibits - District Court of Colorado - Colorado

Case 1:03-cv-02579-RPM
13/24/89

Document 142-4
4875530

Filed 01/11/2007

Page 1 of 18

OR

United States Patent
Wink
et

11

Patent Date

Numben
of

4875530
24
at

at

1989

AUTOMATIC
Inventor

SYSTEM
Prink Tulsa Lowell

3891038 3917230 4324387 4434971 4593773 4662608 4756366
7/1988
..........

at

..

175/27 175/27

..............

Tommy

4/1982

Steinhagen

.......

254/377 175/27

Reed Oklahoma City both of Okia Cochran Midland Whit Dwayne
Meflair Sugerland Technology of

.._

175/27
et .-...

166/385

73
Appl

Parker

inc

Odessa

Tea
328774

lvi himay ExaminerBruce Anontey Agen6 or FinnMarcus

I..

Bates

57
1989

22
Related
Continuation

24
U.S

Maximum
coring
is bit

rate

of

drill

penetration control

in
bit

high

achieved

by

precise

Application

speed makes
it

system of
possible to

No
E21B 44/00

24 1987

doned lad

B66D 5fl0 B66D 5/26
254/269 254/377 73/151

quickteaclflnd Maintain this or sweet-point each time the optimum combination core bit started The required speed and weight is into controller input system by operator
tion electronically senses to

U.S

......

175/fl
254fl70 175/24

the

bit

and provides instan driven

taneous which
bit

feedback capable

hydraulically

drawworks
on
the drilling

of
penetration

58

Field

of

Search

254/267275
References

340

361 377

throughout
uses

modes The
that the

system

combination system
for

of

includes

hydraulic
solid-state swivel

U.S
1924.317 8/1933 1/1935

DOCUMENTS

gauge
for electronic
drill

load

apparatus

built into

the

HauetaL
DeLa
Anderson Morton
WhIttle Burrell
.....................

assembly an

continuously
control

weighing
for for

254/270X
al
..

string ing the

circuitry

ci

254/377 254/377 254/377 175/27 ing

2219215

10/1940 2/1947 8/1969

...._
....

weight

and
drive

weight
rotation

and
string

top

system

for

high

3653636 3716106

4/19fl

...

254/270

llS/27X

22Claims9DrawlngSlieets

EXHIBIT

p__jo
WS
0002065

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 2 of 18

US

Oct 24

1989

of

4875530

WS

0002066

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 3 of 18

US

Patent

Oct 24

1989

Sheet

4875530

WS

0002067

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 4 of 18

US

Patent

Oct 24

Sheet

of

4875530

DRILLER

TOTAL

WEIGHTkg

innr. UCtUVC

0000000

DODD DDD0 ODOD

AInAflt.b

4/ DRILL PIPE

SPEED

RPM 69

IN2
PIPE JUINI

QsjQjIjQ
Iooocio

Li
ADDED

Wt

KG
lilT

DRILL

OVERLOAD

PIPE TORQUE NEWTON -METERS

jAUTt
AUTOMATIC

MODE
SELECTOR

ON

MANUAL ON

HYDR BRAKE
PUSH ON OFF

POWER TONGS

ACPOWER
ON

50
AUTOMATIC
BIT

MANUAL
ADJUST
BIT WEIGHT SET POINT
kQ

HYDR
BRAKE

HYOR

00

SET

ON

CHARG1NG PUMP PRESSURE ON OK

WS

0002068

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 5 of 18

US

Patent

Oct

1989

Sheet

of

4875530

WS

0002069

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 6 of 18

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cID
61

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Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 7 of 18

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Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 8 of 18

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Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 9 of 18

US

Patent

Oct 241989

Sheet

of

4875530

rrs0ia
WS
0002073

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 10 of 18

US

Patent

Oct

1989

4875530

Frs014
WS

0002074

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 11 of 18

4875530
off

The
which

stripping

off

drawworks drum
output shaft speed and

AUTOMATIC
This
filed continuation

DRILLING
of
application

SYSTEM

becomes
rotation to

driver back

driving through leakage

thereby minimize motor hydraulic
positive

Sept 24

1987

now

abandoned

braking with

BACKGROUND
In drilling tool rig

THE DISCLOSURE
complement
string the the pipe overall desired 10

To
ated

insure

brake
is

motor on the drum
between

spring the

oper

parking and whenever
will

brake
the

increaser

hydraulic
the
is

motor This brake
through
rotating

en
the of
the to

and

gaged motor

weight weight
especially as at the the
drill

compared or coring of
bit

to

not

load

control

to to

measure

the

total

weight
total indicators

can be

as

little

the

drill

ascertain

weight type
are

on

of one

percent

Using accuracy
maintaining

The
the
15

load

cells

of of

strain

gauge

mounted
load
cells

existing sensing the

of

lower

end

assembly
individual cylindrical

and

controlling

is

prohibitive

assembly
are positioned load

load

such
the to drilling

narrow

During
is

range boreboles
constant

symmetrically on each
to

around of

periphery
string electrical electrical

rotary

bit

special

The weight
combined produce
string to

maintain weight

WOB
tend
to

because wear

wide
out

distributed outputs 20 are

cells

variations

the

on

the

bit

or
the

damage
of penetration rate constant sensing
rate possible drilling controls the

and an
drill

representing

drill

The
and dis

weight
the

to

accu make
while

weight played

signal

converted

digital

To
weighed and
just the 25

the total to

on weight
the bit

bit

drill is

string stored in

The
the

drilling penetration to set bit

system of rate within
0.7

the

memory
resuming
play

touching

and
total

range

of weight

meters

/hour

while

The
to

dis of
string bit
is

maintaining
set

Given

definite the

monitor
the the in the this
drill

point can maintain and weight weight an unusual
that

weight 200

con
30

and soon

second
as the

display

on

troller
is

Kgs
consid-

touches
tension

weight reduced weight

unexpected exceeds

reduced
the

ered

weight
in

on

bit as

total

de
the digital to

kg

creases

occurs
represents

SUMMARY
Optimum
drilling bit
is

INVENTION
penetration

The
on speed
35 bit

reduction

in total displayed

and

this the use in

on
is

the

meter an

rate

of by

The output of
log

on

bit

converted
control

control invention
it

speed The

present

drilling

system which

of weight provides an automatic to quickly reach possible each weight
controller
is

system

To
erence voltage potentiometer and

weight
established

on

bit

operation
set point

by
the
is

and
bit into

combination started
the

compared
difference the

on and which be
acts

bit to

The
by
the senses

speed operator

and

input

40

analog
control retard the the

The
valve to

amplified

system

hydraulic

motor of
will until

electronically instantaneous

on
signal

bit

movement
weight
the bit

string the the

feedback

to

hydraulically maintaining

heavier ing 45

on

bit

greater

retard
desired

driven
cise bit

drawworks
throughout
functions the strain control

capable

pre

action

motor by

unique
plish these for

varying penetration of equipment is used and includes novel
the load cells control string control

weight

on

achieved
the

controller signal the to

Continuous
the

to

accom
unusual

adjustment
hydraulic the the desired set

electronic

electro
bit

motor by on

keeps and

weight

on

near

system

an

set point bit

potentiometer

Hence
on
bit

solld-state

gauge weight
includes the

weight

assembly
for ating

an

electronic

panel and

50

are

kept primary
object

range of

weight of one another
invention
is

computing an automatic
that

gener
top motor vide

present the the

to

pro

and
swivel and

means

on
rate

bit descent

drive system
that Drill

the
drill

above

drilling
drill

operation

of

drives travel to

string this
is

by
the

motor drawworks

55

provision controlling using

cbnnected

retard
is

method weight
drilling

and on
bit

apparatus

for continuously coring operation

the

drum The
fluid

motor an

connected

to

receive proportional

rotary

electrically-operated

rig
this
drill

control provided flow of signal

The
the

control

reads circuitry

an analog signal and restricts the
side to the control braking
is

Another
60

to select

continuously weight on

weigh
bit

rotary

fluid

coming
in

from

compare
using

the

two

signals

to

provide an
to throttle the

operating

motor on

proportion motor

signal cally torque 65 to

signal

hydrauli
necessary
drill

The pressure action on the by the drawworks

the

actuated
resist

motor
rate of

which

provides travel

shaft shaft the

being

driven

string

value
still

to

achieve
object
at

desired

An
the

weight

on
is

bit to

air

connects

drum
This
air

system
clutch are

measure and

transmission

engages switched

the

the into

bottom
signal

swivel
is

only

the

drawworks

electric

motors

change

measurement

WS

0002075

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 12 of 18

4875530
to

account

for to throttle

weight
fluid

on

bit

and

using bale

to the

modified
lic

flow of

upper which

end of the
it

has from accordance connector

is

supported

motor

which

connected

to control

19
load

drawworks Another provide upper
drill

drum
and
still this

made
invention
to the positioned

in

with
relation-

invention

to at the

present ship

load

cell
drill

apparatus
string for

which

connected

remainder
is

of

swivel 20 so
position

that
fin-

end of

continuously weighing provide an
string at
drill

load mediately

from supported This enables swiveL
the drilling as will string to

endue
the

An

additional

object

invention that at rotates the

isto
drill

weight
10 cell

be pointed out

automatic predetennined
string
is

system

be

more

fully

later

on

rpm
at

while
rate

same

time the

herein
Parallel other

which

predeter-

cable

2324
and

are

spaced

front

one

an-

mined These
the skilled description

on bit
and
various

with 32
electric that directly

thereof
suitable

being
part

connected of

other

objects

between apparent
to those
15

rick

An

motor
drives

upper 25 has
string

der
output

hollow

art

and

rending the following upon claims and to the referring
attained the provision in

detailed

drill

27 The motor
to the slid-

accompawith
20

25

has

the

illustrated

nying

motor
are

frame

with

the

opposed free ends
cables

arms of
so

attached

arms being
that as the

The above
the use as present

accordance method

ably ing 18

to the

2324
27

travelthe

invention

with

apparatus

fabricated

manner

substantially

moves motor and
arms and
cables
drill

vertically string are

within
are to carried
resist

described fin

designed

reaction

tnt ntcrn
is

TOflCThI
part

Z% nrnrrc
schematical
rotary part drilling sysdin25

of

motor
to

and

string the

drawworks
as
is

28

is

positioned 17 illustrated panels

marginal

end of support cable

FIG
having
tern

grammatical therewith which
part

drum dog
electronic drilling circuitry

more
29

particularly control the

an

electro-mechanical invention

and

controlling

oper

by

of

the

present

of the
In

out

HG.2
and
is

30 extends rove
at 17

no.2
dance

is

part sets the

diagrammatical
forth

representation

which
in accor-

30

works and

schematically

system plan view with

made

traveling

block

18

of draw crown block 16 drawworks motor 32 hydinu speed
the increaser

no
flG

with

present invention enlarged of
present are

motor
all

33

failsafe respective

35 36
in to

is-an

4rawworks
to

console

used
is

in

invention of
part

the
3$

drawworks

be with

an enlarged
disclosed

the

in

no
of

more detailed flG.1
view
the

of

new and
inafter

as will

manner in apcordan be more particularly 37
drives inlet

present here-

pointed out

is

fragmentary another
similar

apparatus
alternate 40

no
configuration

in
is

configuration
to

motor shows an which

no

pump
of flow of
the

and

motor
control flowrotational

no

thereof
is

33 The
valve from motor

motor
throttles

is

an

enlarged

view view

part

of

the

flow

apparatus

disclosed

some of
along
line

FIG
of

cross-sectional

of motor Numeral

33 33
load

controlling

indicates

that

inter
control

FIG
of

is

an

enlarged
disclosed

detailed

45

posed valve 39

assembly

22 order

flow
to

no
no

the

apparatus

FlO
of of
part

for throttling

in
is

an enlarged
disclosed ii
is

of

the

constant

WOE
Cell

maintain 5316

Computer 41

an analog
ar

apparatus

Load
the apparatus disclosed 50 to load

Conductors and provide

interconnected
to the entire

no 1% no 12
along

signal

com
drill

puter string

41 which

is

related

to the at the

weight

of of

an

enlarged of

cross-sectional

27

as

measured

lower end

th

no

1212
is

ii schematical
part

asembly diagrammatical
in carrying

pan
of

computer connected analog convertor

bit

which
to the illustrated the digital

is

representation

hydraulic

system

for use

43

digital

out

no

in

the

present

invention
part

and
diagrammatical system
for use in carry-

44 The output from
along path 45 with same 48
time display the at set point

analog

14

schematical
air control

convertor provide
related to

is

to junction signal the

46

to

representation ang

an
present

weight
bit

directly

out

the

invention

weight
is

signal

from an

DETAILED
In

convertor
60

44
bit

with
to

signal

from

automatic

weight

provide an operat

no
with

the

drawings

there

is

disclosed

an

auto-

The
selected

bit

weight weight
is

set set

point

displays

its is

matic dance
trated floor

operation and
present

system

10

made
having

accoris

value

at

bit

point manipulating

This

invention with

The system
strands

desired rig cable posi65

that

set
is

by

device
the

49 The
ment

actual

from
at
is

measurethat

12

derrick

14 crown block
of
the

of

22 and
exist

is

displayed

47
and

Any

difference at

17 by which the tioned Lower end

may
fled

between
control

47 and
amplifier

48

ampli
the

traveling

con-

by

the

travels

WS

0002076

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 13 of 18

4875530
automatic and These
signal are are

52 to junction Model 200B
analog
the

53

indicators

41

while accumulated of connected
set forth

an the

indicator joints string details

the 127

D.C.L
derive their

additional the

that

into

27
load

output

46 connected be
to the illustrated

FIGS
manby flow
are
cells is cell

additional

Manual
ual bit

switch

22 which
equally are received to

built

up

weight

adjustment can Both
actnated continues effected

means over
the

frame

has been apart

formed
individual

three

which
control

The

load
cell

52 from from
junction

switch

54

within
electrical

and each connector conduit 74 which

independently

connected
to

in turn

is

The
control

53

to

the

10

connected

the

FIG

56
valves
electrical

which

type

VT5004
proporfeedback
to

Electronic
tional available

spool
signal
is

compatible
signal

circuitry

control

valve

39

make The

15

is mounted in supported below the swivel main body by means of illustrated two parallel vertical carryof no.9 The ing carrying members extend through member have an enlarge-

frame

member

tionship

immediately

from 56

57
components and 60 connect
the

and conof the

meat gagement while

the

end

thereof

that the

brought load
cells plate

en
72
the entire

trols the control

with top
plate

72

bears the

the

flow
with charge
control

valve
centrifugal 20

drill

compres
72

sion

between

the

two confronting

pump
33

38

hydraulic

motor

33
the

flow hydraulic

and

72 OPE

motor
nal

the flow shows
the the the

sig
In 25 elecfor electrically

56
driller

drill

travel

controlled control

by an valve means

FIG
wherein
tronic In

operated

some of
it is is

components
the

of

the

see

FIGS
an which

13
analog
cells signal

control

valve
the electronic

circuitry

are

enclosed be hollow output
to the to
drill

from

P10.4

shaft

26 of motor

string 30 stricting side holthe

processing the swivel coming
the

from

the

By re
pressure shaft

which
the

in turn set

connected on

bit at

not been

down

bottom
and
to the

bit 61 mud flows

of braking
is

motor
action

33
the

20
shaft

creates

on

68

low.motor
trated

The
coring
drill

which which

being
is

by the.drawworks
cable

druth 35

spooling drives

and

this

having

art

core

kel
from
the

associated

therewith unbroken penecontin-

turn

drum drives the drum and motor 33
and
uses the

shaft

which
core
trated
is

approximately to be Obtained

continuous formation

type

The hydraulic system of mOtor 33 to pump the
flow
control

to

proportionally

no
core
the

operated
the operation as the

valve

The
38
fluid passes so
it

motor
fluid

33 from
the that

charged
40 the

by

centrifugal

pump

uous

62 core
barrel

formed

by

the

and

is

As
done on
the to

through up
heat

within

63
side like

set elevators at floor 12

of

motor work
has Control
tional

picks

conventional within
drilling

or

door

be removed novel

by

heat exchanger
hydraulic

bowl
rig

or the

of

brake In

function circuit

system works
three

no
The
oil

is

an addi

13
primary

no.6
slips

the

27 being 30
foot

held

by

45

brake which

main sources which

63
into

an

additional drilling

pipe
so to core the

from
is

connected
tional to the the length

27
the

add

addi-

source

the at

pumps

thereto and on

unbroken up
into

attached

pressure which
Since

36

times

input
is

pressure

by 30 psi

core barreL
50

pressure

source
psi

diaphram and
15.0 cii

accumulator

Note
In
indicate

bottom 65
by which
the

holds

precharge
has

en in volume
in of
to to

FIG
drive

and

respectively

about
the

32 speed increaser 35 failsafe brake 34 motor 33 to the drawworks drive 36 respectively are connected The clutch 64 arrests rotation of the drawworks drum 31 the clutch moengaged ton 32 are comprised of several motors harnessed
motors together
to suitably are

operate
ate the heavier 55

sccumlator

capacity

oper

brake loads psi
will

times system During higher valve with be

As

the will

works be
the elevated

pressure

above

system

the

pressure and manifold
operating

therefore accumulator brake
psi the pressure
in is

open
fluid

power

the to

The motors 32
for
is it

clutched

drawworks drive 36 the drawworks and used
and onto
therefore 60

The
for

now
the

common
failsafe

pressure

making connected
is

trips to to

and out of
the

pressure to

must be
insure that switch light

power
spool

draw works
30

operate
that

To

desired

drum 31

Speed 33 of
in 65

minimum
the pressure
is

maintained
operates light to operate

pressure

mcreaser
are

35
to the

brake

and works
rotation

motor 32 by means

the

manifold

green on
the

on

connected 64

panel enough
itself

is

manifold controls

clutch

controlling the present

drum
apparatus

the the

accordance

invention added which

The
control

controlled

by
its

brake
signal

Numeral 69
accounts
for the

valve

This Under
the

number

of added

pipe

joints

from

two sources

normal

mode

WS

0002077

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 14 of 18

4875530
brake
tronic control cross-post valve yates the hydraulically amplifier released relay the logic

and

applied by
in

increaser of the
air

and

circuit
is

panel
volt

When
is

motor

stalled

and

only

leakage signal brake

through control and brake
applied control pressure for
acti-

after string off the driving

the

solenoid to

the

35 all of which are connected to the line shaft two speed transmission the shown This clutch see engages only electric motors 32 are swithed off As the line is moves downhole stripping drum 31 therefore becomes the back
the

hydraulic

tank

At

output and

shalt 35 to minimise

is

any push
if

time

the

brake mounted of

may be
the

or

released

by
the 10

through motor

speed leakage
the the

the

of
heat

smooth braking
is

there will

hydraulic

any from
rotating

brake
ing

engage ie

stopping the 31 brake prevented

mak
due
so to the

generated
lic

braking motor

carried control

hydrau

33

to

the

hole

to

an

air

blast

heat
positive

shown
brake 34

actuation
drill

34

FIGS
are

and

To ensure
operated
15

on

the

drum 31
increaser

spring

cannot

descend monitored of by

failsafe

brake between

provides the
will

brake
and
the point at

The
green lights be making must be 350 on
it

and

is

installed

on

the

control

panel
the

FIG
be

To
lights

hydraulic

motor This br4ce
leakage

engage

hole
hydraulic to

or penetrating
oil

green

where
stop the

through

motor

will

not

hydraulic
the

pressure must have and
the

drum from rotating

brake

must

order

release operating to

20

LOAD CONTROL
The primary purpose of
measure
the

SYSTEM
system
is

pump
draulic

38 must be motor
air

charge

the

to

33
system the provide
control

weight

of

the

drill

and load
cells the

The

control role

see
both and
air in the

14

plays

important
pressure pressure control pressure

within to

drilling

system

very Air
25

the strain

on
gauge

the

To
are

achieve
integral contains

of

type

mounted
that are

to

is

used

manifold
the

hydraulic clutch

assembly
ual cally

three

individ

for

34

main
is

64

load
the

cells

positioned load cell

system alarm
activated

Since

the

system

vital

the
is

console
pressure
is

The
70
30

weight
three to cells the

on
outputs

each

of

the

alarm

less

than

whose
electrical
drill

are

combined

produce

signal string single

at

42

representing

As seen in comes through
control
the

power
circuit

to

the

total

of
directly

electrical

output
accurate

is

breaker
the

SCR
starts drillers

obtained load
cell

connector assembly

located
is

in the to

29
can by
the

be engaged
off the

coring from the motor

assembly

The
150000

cell

console 79 and
clutch

within

Kg
total

at

Kg
to

total

FIG
clutching air clutch

DC
air

blowers

The
the

weight
shielded cable to the

through computer and
at

mul

drum
provides

clutch

drum
automatic

ti-conductor
signal the
is

41 where
displayed

supply

converted
total the
is

digital display

64
the

on motor
is

illustrated

41
total

When
control supplied the
drill

the

brake and
40
lift

To
information contents button prior to

weight

on

bit unit

weight

valve
to bit the the

FIG
clutch

13
driller

removed from memory
This touching
at reset

64
energizing

wants

of

the

memory zero when
operation

reset
is

pusb

blower
trips

motors
solenoid

pressed the
bit

on and
control driller

brake

downhole
display total to

resuming

valve 32

which

the clutch
lift

auto45

drilling continues

64 This
to

will

enable means of
the

operation monitor to
display as
is

FIG.2
41 and on weight
drill

motors

be used
drive the

to

second
bit

available

weight monitor

at

drawworka
gaged from

36

since

apparatus

33 means of
13

are
air

disen

As soon

the since

touches
tension the the
its

64
This
safety tive
air lic

weight reduced
50 indicator bit contact

reduced
the

string total value

weight

on
to

bit

Thus

weight

particular In the

valve
the

34
be
the

was

selected or

commence
occurs
in total

decrease

when

event of

power
clutch

failure

defec

valve

The
the

weight on
is

the the

to

the

clutch

64 Air on

on

bit

and

this the

displayed

meter
to

47

system
will

333839
looses

control the until traveling

30 dram
can

if

The output of
55 log signal

on
in the

bit

convened
control

an

the 1$
fall

block be

use

system ref
point

To
erence voltage potentiometer weight on
bit 60 fied at
trol

automatic
is

weight

on
the

bit

operation weight
at
set

applied

established

by
and

When
power
clutch
that to

the the

is

for

conventional
to the the rig air

the

49
analog
amplified

compared

48

with
is

autodriller

and

difference sent to the

deenergize

the

solenoid
position

blocking

the to insure

51 This
the

con
control

two
clutch drilling the

way valve
inadvertently

used be

amplifier

controls

cannot

pressurized

valve retard

hydraulic

while

conventionally automatic
drilling

downward
or heavier
action

motor forcing movement of
weight on
bit the the hydraulic

the

mOtor

to

string greater

The
be
the

When
manual
this

system
is

is

engaged

the

greater the

will
until

brake
the

up
as

ie released upon
in

At
the

retarding

of
bit

motor by
the

33

time

autodriller
is

drum drum

is

totally

desired matic

on
adjustment
control

system
to the

Auto
electro

systen

of

the the

signal

now

comprised

of motor

33

brake

34

and

hydraulic

for

motor

33

WS

0002078

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 15 of 18

4875530
10
tamed
the In set to

keep event

the

the

weight

on

bit

near the\alue

set

by

Confirm lamps
are

pump
status front

and

hydraulic

pressure

point

potentioneter

49
this action

manual

control

At
be
devices

this

time
the

and

position panel

the

following
as

desired switched
discretion to

switch manual
the

FIG
system weight continue
the

can
is

on

of

controller

and

operation

of
total will

at the at

follows

of

operator
bit

The
at as

display to

Assume
for eral

that

drilling

has
is

been
to

going

41 and
tion to

weight guide

on
the

47 he

func

and continuous
barrel

now

obtain

on sev

operator

operates

manual
10

core
are are

samples to
the the

core

bit

suitable

control indirectly

potentiometer 55 and closes opens the
drill

the

flow
at

potentiometer valve
controlled

coring
Joints just off

attached added of
total

bottom
string

of

the the

string
bit

of pipe

until

lowing

to

descend

rate

bottom
the

preset controller
bit

overload
to

alarm

established that
this

within
the

At
on
15
drill

this string

weight be
is

indicator that

measure

provide an
safe

indication

weight
the set

weight

limits the

occurs on
bit

oper
point
stop to to

weight

indicator

rWl
the

120000
is

Kg

while
the

ator

can
to

either

weight

mum BWI
drillers

instrument reading following

switch

manual
to

control
the

or
retarding

the

console

emergency motor
string

operations

are

carried

pushbutton reduce

cause

out
Driller

hydraulic the

downward

should push
set
is

to

make

sure

the

hydraulic

travel

minimum
20

brake
Driller

pushed blower

IN
motors
the

drawworks
switching
off will activate

TOP
The top
bly
drive

SYSTEM
the

Switch swivel

assem
equip
to

the

blower

motors

automatic

driller

DC

motor

tool

and

associated
is

clutch
Switch
Set

ment The purpose of the top drive vide variable speed power to the Mounted as an direct integral
string

pro
bit
drill

assignment
drive

to

drive

top

rpm top drive
brakes
return

rpm

is

on

the

control

string unit to the

panel
Release
the

HP
assembly of 600 and

motor allowed frame and of
not

is

suspended
turn freely
is

the at

Now
and
30 tare that set
bit

is

swivel speed

to

top

necessary to establish on bottom This is achieved
net

memory
by pushing
the

rpm The
2324

motor allowed
to

suspension
the

cables
is

when
obtained

and
the

gross

weight

buttons on

TWI
zero

device
to

so

TWI
set the

changes

TWI
then

motor

powered

conditions
reading

The power to the DC Tromthe supply The output of

BWI
manual brake
the adjust

series-type

motor current

20

is

5CR power
to the

Next
pull the adjust

knob 49

to zero

and

hydraulic until to

button
control

open valve
adjust

the

manual

unit adjusted

is

DC

up

750
full

volts

flow

allows

800

ampers and can be
volts
direct drilling control

over

range
for

drill

descend

The manual
bit

knob

is

down
top drive automatic
is

speed

and torque provided speed

to gently the

set the

on bottom on

without bouncing weight
reading

the
is

bit

on

Watch
played
40

weight

dis

information sensor

obtained
to

from
sense the

magnetic
drill is

pickup
sent

speed

78

115000

example while
the

may
the

equal

BWI

reading
will

equals set to

Kg
minimum
preventing core
bit

located

speed
to the in

directly digital

Next
setting

adjust the
bit

output of where

speed speed
is

sensor

and

directly

RPM
DC
in series

hydraulic

brake

engage

The torque of
current

the

top

drive

any further bottom and
required

penetration

With

weighted
turning select

on

sensor

Hall
the

Effect

Device
drive

with the
the

DC
is

rpm

top drive system switch the

to the

right the to

switch
bit

auto
set the
bit

of the sent

top

motor The output of
motor

matic
point

lIED
is

Slowly increase knob to the desired
set point indicator will

as

shown

on

torque

displayed

weight determining provides complete
the the so draulic seek
its

When
the penetration
drill

done
to

hy
posi

The

chart

recorder
it

brake system

lower

sweetpoint
historical

and

accurate

optimum
bit

rate

of

or

operating

operating
as
it

tion
relates to actual

BWJ
set point indicator bit the as

will the If

can and

be analyzed depth

weight

speed

the

bit the

system change

seeks

to
bit

attained

coring

maintain

weight knob

EXAMPLE
The following
practicing
is

weight
55

auto-

matic

bit

set

point

can

be

readjusted

as

one

specific

of
present for the

desired

method
the

of

the

invention

The
weight

bit

weight
bit

overload
the

an automatic
the has

indication set point

the

To

perform
the

setup

on

system

following

procedure
in

must be

done
driller

This can

be
the

programmed
first

into

controller

Turn on
trol

AC

power

SCR
swivel

auto

con
15

so

When
first

core
joint

made
drilled hydraulic

the press

pump
the

and

system
for

Wait

30

pipe

has been
to

seconds

hydraulic

push At
this

engage

brake

Turn on
located
Set the

supply valve
the
bit

auto

driller

clutch

see
is

FIG

and
bit

setting

on

near

the

clutch and manual
65

set point

Note that necessary bottom without breaking
set
slips

cannot
therfore

be
in

lifted

the the

core

to just

adjust

to

minimum
to

upper
to slide

end

must be
elevators into inch

lifted

Set
Set

mode
auto

selector driller

oil
in

enough button

the

position

brake

The

should

as small

as

WS

0002079

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 16 of 18

4875530
11
not change
ticity

12
at
all

the

position

of

the
drill

due

to

the

eisawill ports

In

drilling
drill

operation spooled motor and

drilling

or

elongation the bit

of

The
in

WOB
with
stay location the

string

onto
to

sup drawworks
said

change bottom

but of

contact
will to

drum
drum
lifting

drawworks
for

connected
the

and can
the
drill

the core very and
is

sample
close the carried

intact

cable

and brake
drill

The
door

driller

and

lowering
the
drill

drill

string

drawworks
for rotating thereof

termined by Switch works
Set

connection

side

for

braking which

and
bit

means
at

elevators

The following
the

out
to the

string

the flows
the

for

5CR
and
side
kill

from top

chive

draw-

P1P
in position

penetrating

formation
at the string the

while end
to

through and

swivel and
set the pipe 10

upper on

door

elevators

through
controlling

the

bit

the the

method of

down
Use
the

weight

bit

comprising while

power tongs
joint

break

connection

and

spin

out of weighing
drill

the

drill

is

Make
Just

mouse hole connection
before
setting

as

follows

only

TWI
itt

15

suspended bottom
tionalto selecting as the bit the

within
generating
drill

with which

off

reading
is

may be 100000
so
that gross

BW1
weight
in

propor
on
bit

string

weight
for the

6000
on load while
the

memory

an

optimum

weight

tially

Setting
is

side

door elevators so
the

1W
is

the

drill

weight

modifying
20 selected vide

the

while making hole of step by of
step

said

may be 8725
is

value

therewith of

to the

Kg
gross

16600 be added
as

Kg
to the

thereby prodrill

the

weight
next tool

memory
joint that

remains weight
drill

string
bit

to

achieve

the

weight

on

of

Pick
string to the

up

to

The
total

weight weight
will indicator

being
bit 25

The

trnthg
provide
the
drill

the

resultant

obtained
is

step

to to

indicator

BWI
the be

control

not

change
calculation bottom be determined
joint

Correct
string

bit lifted

Since

to

achieve

the

drill

cannot

the

weight

on

bit

step the
drill

core
fore

weight added
for

cannot

and

continuously
stored drilling force

string

during

memory Each
correct foot bit

weight
as

must them-

by applying
said

vsrinble

follows
to the
drill

on

drawworks
to

When
string the

pipe joint

added

motor
as ing 35 the

means

be

rotated cable

drum by connecting drawworks drum and
to drive apply-

pipe joint be
set to

added
to

FIGS
compensate
foot for this additional

drum unspools
to said in

should weight

power

motor
to

means
the

motor

means

opposition

unspooling motor

draw
wears

When
drill

second30
joint to the

pipe
selector

added added reweigh

to the

works4rum
controlling plies to to

and...
the

string set to

added
for

switch should

torque

that

said

ap
said

be

compensate
barrel

resist rotation said

of means
to in

drum
thereby cause
to constant the

applying
to

When
load as

core

removed
for

pipe 40

power
control

motor of
step

proportion
the

noted

signal to

motor on

When
nection brake to

power tongs make
insure the

makeup
the

con-

means

apply approaches

drum
bit

connection

then pushed follows
clutch

hydraulic

continually

weight
step including

ie
step

which

Drillers Driller release
slips

console
will

operations

as

The
the 45

equal to the selected of claim method
is

value
further for said

the

of

using

hydraulic
the

motor

motor

means of throt
to

the that the

brakes
elevators
bit

to

easily

the

pipe

and bowl

connecting
fluid control the

motor valve means on on
said

source means and

so

can
off the

be

from

power
tling

without
Set

lifting

may be
said string further

required

Switch

Lock clutch Watch
autodriller

drum brakes off drawworks drum clutch
air pressure for

achieve motors
autodriller steps

rotational

apply an

upward
of

The
of of and
the said

the load the swivel

drill

string supporting the

drum

clutch

lower cable
to

supporting
the

string

fromthe

Switch Set top Release Panel
drive

to

top drive

55

cells

thereby place
to the

rpm
return

force

tension

upper

compression end of the

drill

drum brakes
added on
selector

pane

operation be

string

operations
joint
set

The method of claim
steps to direct shaft out

including

the

Pipe
or

of

rotating to

the

upper

end

the

by hollow

depending
this

on

which

joint

has been barrel brake

coupling which
to
is

direct in

motor

having of

while Disengage

core
driller

supported

underlying part

relationship said
drill

automatic

respective string

the drilling shaft

button
If bit
start

and

flowing

the the direct the further string drive

swivel

mode

selector

switch not been and

is

on

auto
the

and

the will

through

of

motor
the drive
drill

set point

changed

down
steps

through of

drill

to

seeking be

irninedintely

all

appropriate

lights

of claim
said

including

will

on

indicating

proper operation

with

We

motor and

carrying

out

by

WS

0002080

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 17 of 18

4875530
13
string direct at location adjacent to the

14
upper end
of said

10 The method
steps

of claim
the
drill

and

further placing the

including load cells

the

motor The method of claim
of
using fluid actuated

of

string

by

and

further

the for said

the said

lower end
drilling

swivel load
load in

supporting
the the in

swivel
string in the to

step

motor
actuated

motor be of

supporting
the the cells

means
the

connecting
rotation

said said

fluid

motor

borehole thereby
equal to

from
place the

bottom with
drill

driven by

drum connecting
to

cells

actuated an
inlet

motor of

an

outlet

of

fluid

pump
fluid the 10

tension

connecting and

fluid

pump
valve of

to

source of
to the

11 The
steps direct

of claim
the to

upper end and further end of

string the

including

throttling

fluid

flow
control

said

pump

of

rotating

upper
drill

by supported
in

actuated

motor response an

with
to the

coupling of

motor which
to

valve of
step

control

signal arid

underlying part

relationship said
drill

respective

swivel and forms
fluid the the the direct at location
drill

to thereby

retard

of
said
drill

drum

sthng

flowing hollow
the
drill

achieve

upward
of with
string

force

on

string
bit that drilling includes
at lifting

through

swivel through of
said
drill

shaft to

Method
borehole
rotatable
drill

controlling rotary drilling

on
rig
bit

motor and 12 method
steps

string further

and

lower

end

thereof
string

having and with

the

of

rotating

and

moto and
cent to the

lowering

rove means

about
for

upper

weighing end of

adja

of

said

direct

drive

motor
including the

drawworks drum
ing the

drawworks motor moving
the

rotat

13 The
step

further

and

uphole of

and

of connecting
of

motor

be
thereby the hydraulic

by

rotation

drawworks
motor source of means

drum

to

hole and

thereby changing drawworks brake means comprising
the

for rendering steps

the

drum nonrotated

said

rotatable

of
means
to

motor
to the

connecting and throttling
control

flow valve means
in

connecting

another
as said

motor

be

by
25 said to rotation control

hydraulic to the

motor

with

drum drawworks
said said force the ling

unspools connecting means motor
for

from

response

of

step thereby

retard

of of
the

drawworks
tension rig

drum and
drill

drum
motor

achieve of

power
applying
in opposition

string

rotational to
dril-

14
an
30
drill

drilling

atop
to

drive rotate the

by

said

another
as

means

electric string

motor

connected

rotation

the

drum unspools
is

upper

end

of

bit at the

lower

of

string

swivel
said

supports the

the

motor
said

drilling

weighing pended
off

sus

swivel
said

and

continues

bottom
to signal that
is

resultant proportional 35 the

morofl from about

through swivel supported
is

hollow

shaft

of

measurement thereto
selecting

block
strands

turn

supported

by

plurality the

of cable

weight and

on

bit

and

rove

crown block one end of drawworks drum so that
elevation cable

of
as

providing combining
vide

signal

proportional

thereto
to

drum changes pro
the in
bit

of

the the string
is

of
signal at the

steps
is

reduced
penetrates

lowered

an

operating required to

that

of the the
drill

and
first

engages means lower
electric

and
for

formation
said

tension in

upper

end of
the

motor and

drum

to

thereby

order

continuously
that to step

support
in

with an on
bit

lift

said

uphole
tially

weight
drilling

substan

swivel uphole

while

lowered motor of

motor drill string and downhole
connected
to

bit

are

lifted

controlling

said applies to the

second
in signal

means

be

rotated said to said

motor

means

drawworks
of
the

unspooling motor drawworks
said
resists

drawworks
applies that
is

drum
to

proportion of
step

to the

means drawworks

force

while
said cable
resists is drill

whereby
string rotates the

the to
tan-

drum

unspooling motor

of

weight
spool

the

drum
so

drum
of

said

second

means
in

therefrom

while of

motor
that said so

unspooling
to

drawworks
delivered to said

pro

means
string

cable which

portion

the

power
drill

second

lowered
bit

at step

motor means

means
string the
bit is

weight

on

substantially

constant
including

weighing and
signal

The
steps

method of
hydraulic means by motor

and motor

further

bottom
said ss into

converting
proportional

measurement means
selecting

of using be

and

pump
said

thereto

another motor
to

hydraulic

weight
selection

on bit and converting
into signal

weight of

on

bit the

driven of

by
hydraulic motor
to inlet fluid

drum pump
source of
to the step

con
outlet fluid

thereto
fraction
drill

necting an connecting and with thereby achieve

inlet

the

weight weight means
60 the operating

on

bit

being

string

pump
the

throttling

flow of on

motor
tO

combining

drill

signal
bit

and an
that

accordance
rotation said said string further

on
signal effected

to the in order

provide
to

drum and

representative

an upward The method of
using

must
said

be

achieve

clairn7

and

weight

on bit
the
in

step

of

hydraulic

motor

for said

another
to

motor source achieve
65

and

means

controlling

power
to

delivered to the

to

said

means and
of
said said fluid

hydraulic control

motor and

second tude
the

motor
said operating

proportion second on

through valve on

valve
as

means be

throttling to

signal the

continually

adjust

means

required

rotational adjust

of

motor

means

and

weight

bit

thereby

weight

bit to

value

substan

WS

0002081

Case 1:03-cv-02579-RPM

Document 142-4

Filed 01/11/2007

Page 18 of 18

4875530
15
tially

16
of the

to

said

on

drive

electric

motor
respective

which
to

is

bit

relationship

the

supported swivel and
fluid

in

underlying
part

forms

of

18
motor
trifugal

apparatus means charge
is

of

14 wherein
actuated to

said

said

drill

string through

drilling

flows
the the bit said
drill

hydraulically

motor
the to

cen

swivel and

hollow

shaft string

of

motor

pump connected
flow
fluid to the

charge

motor
lably

inlet throttle control

control
said

down through 20 The
rotated

to

16
direct location drive

hydraulic to

motor
control

string string

with
at

motor and
to the

flow from
said

being

weighed

adjacent

upper

end

charge

pump
when
retards rate at to

of admit flow
hydraulic 10

drive

motor
claim 16 wherein be motor means by
said

21 The improvement
motor
is

hydraulic
to

therethrougli and motor works

to said

drum pump

thereby an of

which

the

provide
inlet

means

having

drum unspools
weight
drilling

an outlet and

connecting outlet means and
to
is

reducing

on

bit

16
which lower
bit

in

rotary

having
cable

drawworks drum
to raise

hydraulic
15 the

motor
inlet to

to

the

pump
of

connecting

pump
for

source
the

control the

spools
drill

unspools
string

therefrom

and

means

throttling

fluid

hydraulic

uphole

and

downhole
first

motor
connected of
rotation the im20 to controller

said in retard

valve proportion
rate

means
to the

operated

by
to

at

the said

end of

string

motor

rotate

drum
to

in either rotation

brake

means

prevent

of

said

drum
with

thereby an

of

rotation said

of
string

drum and
to

upward 22

force

on

maintain

said

provement means bottom
tional

comprising
for to to
drill

desired string off
is

weight

on bit on bit
including

provide
drill

first

which weight

system
bit

for

drilling at the

propor

that

drill

said

lower end thereof
said to

and means

second
said

motor

connected motor means

to

be

rotated

drum
resist

for rotating

25

upper

end

second

being

connected

thereof
rotates

and
to

drawworks
cable vertical

having and
off the

cable

drum
the cable

unspooling means
for selecting

cable

when energized
weight providing weight on
bit signal 30 to signal string Afeight representative required in of

spoo1 being attached to
the string

on

drum
the

movement
in

of

drilling

operation
to said

second on bit

thereby within

string

upper end of to be lifted
to

and

lowered

response

drum

proportional

means vide

comhining an operating

pro
the to

rotation
first

motor
drill

means brake

for

said

Lifting

weight achievinid
controller for

order

said

and means

lowering
the

string

on

6ft force said 35

downhol
rendered means

by
set point

can

be

rotational

non-rotatable
selecting

second
the ating

motor

imparts

resisting

the

of

forming

drum
signal to said

means motor
to

connecting so
that in

oper

desired

weightbn
said the
bit

while taking
the

hole means

for

weighing and
40 bit

power of
to said at cable

second

changes thereby
desired

while
for

and
selected string

making
bit

and and

unspool on

means

maintain constant of claim

substantially

converting of the drill weight signal wherein
nal varies

an

operating

operating

17
motor
necting
is

improvement hydraulic
the

wherein of

second means
fluid

with
the

change means

of

of and making bole of
to

motor
motor
controller

control

con
45

string

while motor
first

hydraulic
said

source

second
said

connected
said

independently means

means
trol force

including as said

throttling to

con
upward

motor
rate

means and

valve on

may be

required and

achieve

an

reduce second one

the

thereby and
bit

maintain

motor

of unspooling of is connected means
the

drum
to

be drawworks
in

weight

on bit it The improvement
the cells

direction to to the

unspooling
in the delivered

of

of

further oft

includ-

50

drum and
response motor ered
said to

ing

weighing load placing
swivel

bottom

by
the

power

to

said

second

end by
said

of
drill

means
said

means second

controlling

power deliv
in

supported being supported from
load cells in

cable
to force

motor

means

proportion
rate

to

thereby
equal to the ten55

operational

signal
drill

the
is

of

de
to

compression
drill

scent

of

string

controlled

and

thereby
equal

non in the upper end 19 The improvement
end of
the string
is

string

maintains

weight point

on

bit substantially

of claim

upper coupling
to direct

said

set

rotated

by

direct

60

65

WS

0002082