US2536458A - Pipe rotating device for oil wells - Google Patents

Pipe rotating device for oil wells Download PDF

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US2536458A
US2536458A US62528A US6252848A US2536458A US 2536458 A US2536458 A US 2536458A US 62528 A US62528 A US 62528A US 6252848 A US6252848 A US 6252848A US 2536458 A US2536458 A US 2536458A
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plates
roller
mounted
frame
rotating device
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US62528A
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Theodor R Munsinger
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Theodor R Munsinger
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick
    • E21B19/16Connecting or disconnecting pipe couplings or joints
    • E21B19/168Connecting or disconnecting pipe couplings or joints using a spinner with rollers or a belt adapted to engage a well pipe

Description

Jan. 2, 1951 T. R. MUNSINGER 2,536,458

PIPE ROTATING DEVICE FOR OIL WELLS Filed Nov. 29, 1948 2 Sheets-Sheet l INVEN TOR. 71150002 1?. MU/YS/NGEQ A TTOEWEY Patented Jan. 2, 1951 UNITED STATES PATENT OFFICE I 2,536,458 PIPE ROTATING DEVICE FOR OIL WELLS Theodor R. Munsinger, Meeker, 0010. Application November 29, 1948,'Serial No. 62,528

3 Claims. (Cl. 255-35) This invention relates to a pipe rotating device,

exceedingly positive and rapid in operation;

which will not interfere in any way with the usual oil well operations, and which can be quickly and easily brought into and out of position for use.

- Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efficiency. These will become more apparent from the following description.

- 'In the following detailed description of the invention, reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawin and throughout the description.

In the drawings:

Fig. 1 is a side view of the lower portion of a typical oil well derrick, illustrating the invention in place thereon;

Fig. 2 is a plan view of the improved pipe rotating device, illustrating it in position for use;

Fig. 3 is a side view thereof; v

Fig. 4 is a cross-section, taken on the line 4--4,

Fig. 3; and

Fig. 5 is a detail cross section taken on the line 5-5, Fig. 2.

In Fig. 1 conventional elements-of a drilling ri are designated by numeral as follows: derrick l0, platform ll, rotary table l2, wedges l3, pipe tongs l4, casing l5, and coupling |6.

{The improved pipe rotating device is preferably supported in two parallel channel slide track members I! supported from the derr ck Ill upon suitable bracket members l8 and cross beams l9.

The pine rotating mechanism is mounted on an elongated frame 2!! which is slidably mounted in and between the track members ll. Anti-frictlon rollers may be provided to assist the sliding movement of the frame if found desirable.

Two roller plates 22 and 23 are mounted on and project forward y from the forward extremity of the frame 20, the plate 22 being above and the plate 23 be ng below the frame 2 The plates 22 and 23 are similar in contour and have curved portions extending forwardly on an arc sc as to partially surround the axis of the ca ing IS. A hin e shaft 24 is vert*callv.;.fand rotatably mounted in. the plates 22 and 23" on the center -m -vefas a unit.

2 I line of the frame 26 and casing l5. Upper and lower swinging jaw plates 25 are hingedly inounted on the shaft 24 so that they may swing about the axis of the latter.

Two roller shafts 26 are mounted in the curved portion of the plates 22 and23, and. each carries a friction roller 21 positioned between the two roller plates. Two similar roller shafts 28 are mounted-in the two swinging jaw plates 25, and each carries a friction roller 29 positioned between the two jaw plates. The rollers 21' and 29 may have any desired construction, as illustrated they comprise hub-like cores 48 covered with a suitable friction material, such as rubber, neoprene, canvas, leather, or the like, so that they will frictionally engage the surface of the casing l5. The roller plates 22 and 23 also carry vertical gear shafts 30 positioned between the two roller shafts 26 and between the shafts 24 and 25. The two swinging'jaw plates 25 also carry simi-' larly positioned gear shafts 3|. Each of the gear shafts 3|! and 3| is provided with a pinion gear 33. The p nion gears 33 mesh with drive gears 32 mounted on the cores 48 of the two adjacent friction wheels so as to provide a continuous 'gear train along the plates 22 and 23 and along the jaw plates 25. The two innermost pinion gears 33 mesh with a power gear 34 keyed on the hinge shaft 24 by means of a shaft key 5|. The shaft 24 is driven from a. worm gear 35, which in turn is driven from a worm 36. The worm 36 is mounted on "a worm shaft 31 driven from any suitable drive motor 38 throu h the med um of transmission gears or a transmission chain enclosed in a housing 39. The motor 38 is mounted on the frame 2!! and the shaft 31 is supported in bearings 49 on the frame 2!! so that the entire assemblywill The law lates 25 are swung about the axis of the sha t 4 by means of a ydraulic u ger 40 actuated from a double actlng'hydraulic cylinder 4|. The cylinder 4| is mounted on a hinge pin 42 on the frame 20. and the plunger 4!] is mounted on a hin e shaft 3 extending between the two jaw plates 25. Fluid is admitted to the cylinder 4| through the medium of hydraulic tubes 44.

The frame 20 is moved al ng the track memhers I! by means of a second hydraulic plunger 45 actuated from a second hydraulic cylinder 46 to which fluid is admitted through hydraulic tubes 41. The hydraulic cylinder is mounted on one of the track members "and the plunger 45 connects with a plunger shaft 50 extending between 3 the plates 22 and 23. It will be noted that one side of the channel track structure I 1 is cut away, as shown at 2|, to provide clearance for the mounting of the hinge pin 42 when the plunger .45 is retracted.

by means-of wedges 13., and the length ofcasing.

in the derrick is unloosened from the coupling l6 by means of the tongs I4.

The hydraulic plunger 45 is then actuatedto force the pipe rotating device against the casin as shown in Fig. 2, and the hydraulic plunger 40 is actuated to clamp the rollers 27 and29 tightly against the casing. The motor 38 is: then. started so as to rotate the rollers and spin the suspended length of casing from the coupling IS.

The jaw plates are then opened by actuation of t-he plunger 40; and the device is withdrawnby actuation of the plunger 45 to allow the freed casing to'be swung'to thestored position in the derrick.

It often happens that when the lengths of-drill stem, tubing, or casing, are swung into position over the string, the threads in the couplings will lie-damaged, due to the 'difiiculty of lowering-the lengths accuratel into the coupling. This a damage is avoidedby theuse of the presentinvention, for the device can be installed-sothat when in operatingposition, it willbe concentric with the well string, so that the mere'act' ofswinginga length into the device will automatically center the length :over the coupling so that it can be spun therein. without damage to the threads.

While a specific form of the improvement has beenwdescribediand illustrated herein, it is to be understoodsthat the same may :be varied, within thescope of the appended claims, without? departingjrornthe spirit of the invention;

Having thus described theinvention, what is claimedb'and desired secured by Letters; Patent is:

- 1'. A "pipe'trotatingdevice for use-on oil wells and the likevcomprising: an elongated; horizontal frame; arcuaterollerplates extending from the extremity ofsaid' frame; 'a' vertically positioned center hinge shaft carried by said roller plates; arcuate jaw platesswingingly mounted on. said hingeshaft, said roller-plates and said jaw plates extending partially aboutthe p'ipesto be rotated; rollershafts mounted in said roller plates and in 'rsaid jaw plates in spaced-apart relation; roll-.-

ers carr'ied .by said roller shafts and :adaptedto frictionally engage the pipe; hydraulic" means driven gears mounted on said rollersfor'rotating' thealatter; pinion gears mounted on-said gear shafts in mesh with said driven gears :and intermevzliate. each .pair 101 the latter; a-power gear and the like comprising: an elongated, horizon tal frame, arcuate roller plates extending from. the extremity of said frame; a verticall positioned center hinge shaft carried by said roller plates; arcuate jaw plates swingingly mounted on said hinge shaft, said roller plates and said jaw plates extending partially about the pipe to r0tated;froller shafts mounted in said roller plates and in said jaw plates in spaced-apart relation; rollers carried by said roller shafts and adapted torfrictionally engagethe pipe; hydraulic means connected between said jaw plates and said frame so that when actuated, said means will swing said jaw plates toward the axis of said pipe; gear shafts positioned. intermediate tsaid roller shafts; driven gears mounted onsaid rollzers for rotating the latter; pinion gears mounted on said. gear shafts in mesh with saidsdriyen' gears and intermediate .ea-chv pair of the lattes;

a powergearamounted on said hinge shaft in. mesh with the adjacent pinion gears onsaid roller "plateszand on. said :jawzplates; a drivershaft extending longitudinally of said frame; and means for transmitting the .rotation'oflsaid drive shaft to "said hinge shaft ;to irotatesaid rollers.

3. A pipe rotating device for use on oil wells and the like comprising: an elongated, horizontal frame; arcuate roller plates extendingxfrom the extremity of said frame;v a. vertically positionedcenter hinge shaft carried by said roller plates; arcuate jaw plates swingingly mounted on said hinge shaft, said roller plates and said jaw plates extending partially about the pipe to berotated; roller shafts mounted in said :roller.

plates and in said ,jaw pla-tes in spaced-apart relation; rollers. carriedwby said roller shafts and adapted to frictionally engage the p p means for simultaneously rotating :all of said rollers ;in

a. common direction; track members slidably supporting said frame; and a hydraulicall :actuated plunger connected between said track members and said frame to move the latterlon-a gitudinally in said track members.

THEODOR R. MUNSINGER;-

REFERENCES CITED The following references are of record in the file oflthis patent:

UNITED STATES PATENTS 2,450,934 Calhoun Oct. 12, 1948

US62528A 1948-11-29 1948-11-29 Pipe rotating device for oil wells Expired - Lifetime US2536458A (en)

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615681A (en) * 1950-03-27 1952-10-28 Standard Oil Dev Co Device for handling pipes
US2850929A (en) * 1954-07-06 1958-09-09 Jersey Prod Res Co Drill pipe spinner
US3302496A (en) * 1963-10-25 1967-02-07 F N R D Ltd Power-operated wrench
US3392609A (en) * 1966-06-24 1968-07-16 Abegg & Reinhold Co Well pipe spinning unit
US3892148A (en) * 1974-08-01 1975-07-01 Byron Jackson Inc Adjustable power spinning tong
US5660087A (en) * 1995-08-08 1997-08-26 Rae; Donald David Drill pipe spinner
DE19643488C2 (en) * 1996-10-22 2000-03-02 Josef Ranner Means for rotating of substantially tubular articles
US6138529A (en) * 1997-02-07 2000-10-31 Weatherford/Lamb, Inc. Apparatus for gripping a tubular member
US20020189863A1 (en) * 1999-12-22 2002-12-19 Mike Wardley Drilling bit for drilling while running casing
US20030164251A1 (en) * 2000-04-28 2003-09-04 Tulloch Rory Mccrae Expandable apparatus for drift and reaming borehole
US20030173073A1 (en) * 2000-04-17 2003-09-18 Weatherford/Lamb, Inc. Top drive casing system
US20040003490A1 (en) * 1997-09-02 2004-01-08 David Shahin Positioning and spinning device
US20040069500A1 (en) * 2001-05-17 2004-04-15 Haugen David M. Apparatus and methods for tubular makeup interlock
US20040118613A1 (en) * 1994-10-14 2004-06-24 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040124015A1 (en) * 1994-10-14 2004-07-01 Vail William Banning Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040131449A1 (en) * 2002-10-04 2004-07-08 Thompson Carroll R. Pipe handling apparatus for pick-up and lay-down machine
US20040140128A1 (en) * 1994-10-14 2004-07-22 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040216892A1 (en) * 2003-03-05 2004-11-04 Giroux Richard L Drilling with casing latch
US20040216924A1 (en) * 2003-03-05 2004-11-04 Bernd-Georg Pietras Casing running and drilling system
US20040216925A1 (en) * 1998-12-22 2004-11-04 Weatherford/Lamb, Inc. Method and apparatus for drilling and lining a wellbore
US20040221997A1 (en) * 1999-02-25 2004-11-11 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US20040244992A1 (en) * 2003-03-05 2004-12-09 Carter Thurman B. Full bore lined wellbores
US20040262013A1 (en) * 2002-10-11 2004-12-30 Weatherford/Lamb, Inc. Wired casing
US20050000696A1 (en) * 2003-04-04 2005-01-06 Mcdaniel Gary Method and apparatus for handling wellbore tubulars
US20050076744A1 (en) * 2003-10-08 2005-04-14 Weatherford/Lamb, Inc. Apparatus and methods for connecting tubulars
US20050121232A1 (en) * 1998-12-22 2005-06-09 Weatherford/Lamb, Inc. Downhole filter
US20050194188A1 (en) * 2003-10-03 2005-09-08 Glaser Mark C. Method of drilling and completing multiple wellbores inside a single caisson
US20050205250A1 (en) * 2002-10-11 2005-09-22 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
US20050257933A1 (en) * 2004-05-20 2005-11-24 Bernd-Georg Pietras Casing running head
US20050269105A1 (en) * 1998-07-22 2005-12-08 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US20060000600A1 (en) * 1998-08-24 2006-01-05 Bernd-Georg Pietras Casing feeder
US20060032638A1 (en) * 2004-07-30 2006-02-16 Giroux Richard L Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
US20060124357A1 (en) * 2002-07-29 2006-06-15 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US20060137911A1 (en) * 1994-10-14 2006-06-29 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7083005B2 (en) 2002-12-13 2006-08-01 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
US7090021B2 (en) 1998-08-24 2006-08-15 Bernd-Georg Pietras Apparatus for connecting tublars using a top drive
US20060180315A1 (en) * 2005-01-18 2006-08-17 David Shahin Top drive torque booster
US7093675B2 (en) 2000-08-01 2006-08-22 Weatherford/Lamb, Inc. Drilling method
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7128161B2 (en) 1998-12-24 2006-10-31 Weatherford/Lamb, Inc. Apparatus and methods for facilitating the connection of tubulars using a top drive
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
US20060243488A1 (en) * 2005-05-02 2006-11-02 Weatherford/Lamb, Inc. Tailing in and stabbing device
US7131505B2 (en) 2002-12-30 2006-11-07 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US7213656B2 (en) 1998-12-24 2007-05-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US7219744B2 (en) 1998-08-24 2007-05-22 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US20070251701A1 (en) * 2006-04-27 2007-11-01 Michael Jahn Torque sub for use with top drive
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US20080125876A1 (en) * 2006-11-17 2008-05-29 Boutwell Doyle F Top drive interlock
US7617866B2 (en) 1998-08-24 2009-11-17 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars using a top drive
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7694744B2 (en) 2005-01-12 2010-04-13 Weatherford/Lamb, Inc. One-position fill-up and circulating tool and method
US7874352B2 (en) 2003-03-05 2011-01-25 Weatherford/Lamb, Inc. Apparatus for gripping a tubular on a drilling rig
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion

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US1478020A (en) * 1921-05-02 1923-12-18 Butler Charles Augustus Wrench for oil-well casings
US1702822A (en) * 1926-12-14 1929-02-19 Sullivan Machinery Co Tongs
US1805007A (en) * 1927-12-27 1931-05-12 Elmer C Pedley Pipe coupling apparatus
US2400712A (en) * 1943-07-03 1946-05-21 Prather Charles Drill pipe spinner
US2450934A (en) * 1946-05-25 1948-10-12 Ingram X Calhoun Well pipe handling apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1478020A (en) * 1921-05-02 1923-12-18 Butler Charles Augustus Wrench for oil-well casings
US1702822A (en) * 1926-12-14 1929-02-19 Sullivan Machinery Co Tongs
US1805007A (en) * 1927-12-27 1931-05-12 Elmer C Pedley Pipe coupling apparatus
US2400712A (en) * 1943-07-03 1946-05-21 Prather Charles Drill pipe spinner
US2450934A (en) * 1946-05-25 1948-10-12 Ingram X Calhoun Well pipe handling apparatus

Cited By (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615681A (en) * 1950-03-27 1952-10-28 Standard Oil Dev Co Device for handling pipes
US2850929A (en) * 1954-07-06 1958-09-09 Jersey Prod Res Co Drill pipe spinner
US3302496A (en) * 1963-10-25 1967-02-07 F N R D Ltd Power-operated wrench
US3392609A (en) * 1966-06-24 1968-07-16 Abegg & Reinhold Co Well pipe spinning unit
US3892148A (en) * 1974-08-01 1975-07-01 Byron Jackson Inc Adjustable power spinning tong
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040140128A1 (en) * 1994-10-14 2004-07-22 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040124015A1 (en) * 1994-10-14 2004-07-01 Vail William Banning Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7165634B2 (en) 1994-10-14 2007-01-23 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20060137911A1 (en) * 1994-10-14 2006-06-29 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040118613A1 (en) * 1994-10-14 2004-06-24 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US5660087A (en) * 1995-08-08 1997-08-26 Rae; Donald David Drill pipe spinner
DE19643488C2 (en) * 1996-10-22 2000-03-02 Josef Ranner Means for rotating of substantially tubular articles
US6138529A (en) * 1997-02-07 2000-10-31 Weatherford/Lamb, Inc. Apparatus for gripping a tubular member
US20040003490A1 (en) * 1997-09-02 2004-01-08 David Shahin Positioning and spinning device
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US7509722B2 (en) * 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US7137454B2 (en) 1998-07-22 2006-11-21 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US20050269105A1 (en) * 1998-07-22 2005-12-08 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US7665531B2 (en) 1998-07-22 2010-02-23 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US20070193751A1 (en) * 1998-08-24 2007-08-23 Bernd-Georg Pietras Casing running and drilling system
US7669662B2 (en) 1998-08-24 2010-03-02 Weatherford/Lamb, Inc. Casing feeder
US7090021B2 (en) 1998-08-24 2006-08-15 Bernd-Georg Pietras Apparatus for connecting tublars using a top drive
US7219744B2 (en) 1998-08-24 2007-05-22 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US7617866B2 (en) 1998-08-24 2009-11-17 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars using a top drive
US7513300B2 (en) 1998-08-24 2009-04-07 Weatherford/Lamb, Inc. Casing running and drilling system
US20070051519A1 (en) * 1998-08-24 2007-03-08 Bernd-Georg Pietras apparatus for connecting tubulars using a top drive
US20060000600A1 (en) * 1998-08-24 2006-01-05 Bernd-Georg Pietras Casing feeder
US7451826B2 (en) 1998-08-24 2008-11-18 Weatherford/Lamb, Inc. Apparatus for connecting tubulars using a top drive
US20040216925A1 (en) * 1998-12-22 2004-11-04 Weatherford/Lamb, Inc. Method and apparatus for drilling and lining a wellbore
US7117957B2 (en) 1998-12-22 2006-10-10 Weatherford/Lamb, Inc. Methods for drilling and lining a wellbore
US20050121232A1 (en) * 1998-12-22 2005-06-09 Weatherford/Lamb, Inc. Downhole filter
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
US7128161B2 (en) 1998-12-24 2006-10-31 Weatherford/Lamb, Inc. Apparatus and methods for facilitating the connection of tubulars using a top drive
US7213656B2 (en) 1998-12-24 2007-05-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US20040221997A1 (en) * 1999-02-25 2004-11-11 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7216727B2 (en) 1999-12-22 2007-05-15 Weatherford/Lamb, Inc. Drilling bit for drilling while running casing
US20020189863A1 (en) * 1999-12-22 2002-12-19 Mike Wardley Drilling bit for drilling while running casing
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7918273B2 (en) 2000-04-17 2011-04-05 Weatherford/Lamb, Inc. Top drive casing system
US7793719B2 (en) 2000-04-17 2010-09-14 Weatherford/Lamb, Inc. Top drive casing system
US20030173073A1 (en) * 2000-04-17 2003-09-18 Weatherford/Lamb, Inc. Top drive casing system
US20080059073A1 (en) * 2000-04-17 2008-03-06 Giroux Richard L Methods and apparatus for handling and drilling with tubulars or casing
US7654325B2 (en) 2000-04-17 2010-02-02 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US20080110637A1 (en) * 2000-04-17 2008-05-15 Randy Gene Snider Top drive casing system
US20030164251A1 (en) * 2000-04-28 2003-09-04 Tulloch Rory Mccrae Expandable apparatus for drift and reaming borehole
US7093675B2 (en) 2000-08-01 2006-08-22 Weatherford/Lamb, Inc. Drilling method
US8517090B2 (en) 2001-05-17 2013-08-27 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7281587B2 (en) 2001-05-17 2007-10-16 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US20060169461A1 (en) * 2001-05-17 2006-08-03 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7073598B2 (en) 2001-05-17 2006-07-11 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US7896084B2 (en) 2001-05-17 2011-03-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US20040069500A1 (en) * 2001-05-17 2004-04-15 Haugen David M. Apparatus and methods for tubular makeup interlock
US20060124357A1 (en) * 2002-07-29 2006-06-15 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US7448456B2 (en) 2002-07-29 2008-11-11 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
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