US1842638A - Elevating apparatus - Google Patents

Elevating apparatus Download PDF

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US1842638A
US1842638A US48514330A US1842638A US 1842638 A US1842638 A US 1842638A US 48514330 A US48514330 A US 48514330A US 1842638 A US1842638 A US 1842638A
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apparatus
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Wilson B Wigle
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Wilson B Wigle
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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
    • E21B19/02Rod or cable suspensions
    • E21B19/06Elevators, i.e. rod or tube gripping devices

Description

Jan. 26, 1932. w. B. wlGLE 1,342,638

ELavA'rING APPARATUS Filed Sept. 29. 1930 Patented Jan. 26, 1932 UNITED STATES WILSON B. WIGLE, OF COMPTON, CALIFORNIA ELEVATI'NG APPARATUS Application filed September 29, 1930. Serial No. 485,143.

This invention relates generally to oil well equipment, and more particularly to an elevating apparatus.

it chief object of this invention is to pron vide an elevating apparatus so arranged that it may be employed in pulling or lowering drill pipe, well casing, or pump rods to and from an oil or gas well.

A further object of the present invention lo is to provide an elevating apparatus adapted to be connected to the traveling block ot a rotary well drilling rig, and provided with links connected to an elevator' in such a manner that they may swing in all directions, 'le thereby eliminating any torsional strains thereon.

Another object of the invention is to provide an apparatus of the character stated of strong and durable construction in which 2?-0 links and elevators are employed in place of the usual hook.

'Other objects and advantages will be apparent from the following description, reference being had to the accompanying drawings, in which- Fig. 1 is a side elevation of the elevating apparatus (parts being broken away and shown in section) as it appears when pulling a string of drill pipe.

Fig. 2 is a horizontal section taken on line 2-2 oi Fig. 1.

Fig. 3 is a side elevation taken at right angles to Fig. 1 showing the apparatus as it appears when disconnected from the drill 35 Fig. 4 is a side elevation, parts being broken away and shown in section, of the apparatus as it appears when employed to pull sucker rods from a pumping well.

Fig. 5 is a view similar to Fig. 4 showing the apparatus when disconnected from the sucker rods.

Referring now more particularly to the drawings, designates a body member pro- 45 vided with a centrally disposed bore 11 Jfor the reception of a compression spring 12,

seated on an annular flange 13.

Mounted on the upper end oit the spring is a cone or ball race 14 upon which is disposed 59 a plurality of balls 15, which in turn enter an annular groove 16 formed in the underside of a screw cap member 17, which is preferably secured by screw threads 18 to the upper end of a stem 19 formed integral with a head 20, the stem extending through a bore 21 formed in the lower end of the body member 10.

Oppositely disposed lugs 22 having undercut recesses 23 therein are formed on the block in which are disposed bails or links 24, which in turn engage the clevis 25 ot a traveling block 26 of usual construction.

Links 24 are formed of a single piece forging having curved upper ends 27, their lower ends engaging the upper ends ot the recesses 23, and are adapted to be inserted into the recesses through arcuate openings 28 (Fig. 2) formed in the lugs, then moved upwardly into the recesses. Accidental disengagement of the links from the block is prevented when connecting the elevator with the pipe 84, by passing the lower ends of the links into the lower portions 29 of the recesses 23.

Formed in the head 2O are oppositely disposed recesses 30 having curved lower ends 3l upon which rest the upper ends of links 32 of similar construction to the links 24, the lower ends of said links being removably connected to a casing elevator 33 of standard construction, the links being also removably connected to the head as above described in connection with the links 24 and body member 10.

When the apparatus is connected to an entire string ot drill pipe, casing, tubing or the like, as indicated at 34 in Fig. 1, the spring 11 will be under full compression with the cap 17 in trictional engagement with the top surface oi the body member, thus preventing any swivelling action ot the stem 19.

After the string 34 has been raised and gripped by the usual slips in the rotary table, the traveling block 26 is then lowered sui'- liciently to permit a swivelling action oit the head 20, and a stand of drill pipe casing or tubing may then be readily disconnected, at which time the spring functions to automatically raise the stand in the same manner as with the swivel casing hook disclosed in my prior re-issued Patent No. 14,253, dated January 23, 1917.

Under cert-ain conditions it will be 'found to be desirable to prevent swivelling action of the elevator, this being accomplished by a locking device 36 mounted on the upper surface of the cap member 17. This device preferably consists or a plate 37 slidably mounted between flanges or lugs 39 formed on the cap, and retained in place by pins 38, the plate being moved to a position between the link, as indicated by dotted lines in Fig. 2, to prevent swivelling of the elevator, tlie'pla-teen'd contacting with one of theV arms. of the. links 24.

Referringl to Figs. 4 and 5,.the apparatus is shown employed to handle sucker rods, in which case the links 32 are removed4 from the head and a" swivelling device generally designated. at 40 connected thereto, it being necessary to employ the swivelling'device 40 when raising sucker rods as the spring 12 must necessarily be of sufficient strength to raise a stand of drill pipe, weighing approx imately 4,000 lbs.,.or almost 3,000 lbs. in eX- cess of the same lengthof sucker rods. In other words,.the threaded'joint of. the sucker rods'would then be under such tension that it would be practically impossible to disconnect them.

Swivelling device 40 preferably consists of. shank 41 having. a pin 42 formed on its upper end, screw threaded into a coupling member 43 which extends into a recess 44 formed in the head 10, and is connected thereto by a bolt 45.

Formed on the lower end. of thel shankis a head 46 which supports anantiiriction bearing 47 including balls 48 disposed` between races 49, the upper race of which is engaged by a shoulder -50 formed in the upper end of a cylindrical sleeve 51 connected by screw threads 52y to a member 53.

Disposed` in a bore 54 formed in the member 53 is a compression coil spring 55,. the lower end` of which rests on a shoulder 56, the upper. end thereof' being; engaged by a nut 57 threaded on the upper end of a rod 58. This rod is providedl with an eye 58a through which extends the hails` 59- of a hook 60 whichv carries an elevator 61 adapted to receive the coupling 62 of a sucker rod. 64.

Vhen the entire lengthA of the sucker rods are suspended, the cap 17 engages. the body member 10, and nut 57 the upper end ofl the member 53.

After the rods have been sufficiently elevated and retained in such position with a second elevator placedv on the rod below the coping above the casing head, the traveling block is lowered sufficiently to permit full expansion of the spring 12 and partial expansion of the spring 55, the joints of the sucker rods may then be readily disconnected'.

While unscrewing the joints of the rods, the sleeve 51, member 53, and rods 63 swivel on the bearing 47, the spring 55 serving to automatically raise the stand immediately after disconnection, thereby preventing damage to the threads of the couplings.

I claim: Y

AnlA elevatingY mechanism comprising a bodymember having a pair of diametrically disposed undercut recesses in its side wall for the receptionA of' w pair of elevator supporting links, a socket formed in said body member and a bore in its bottom wall, a load sustaining member. provided with a shank,

said= shank extending through the bore in WILSON B. WIGLE..

IOP

US1842638A 1930-09-29 1930-09-29 Elevating apparatus Expired - Lifetime US1842638A (en)

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Cited By (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622846A (en) * 1947-01-21 1952-12-23 Internat Derrick & Equipment C Combined traveling block, adapter, and hook
US2633333A (en) * 1948-05-17 1953-03-31 Lynn W Storm Pipe spinner
US2712932A (en) * 1951-08-20 1955-07-12 Jay P Gould Tool supporting device
US3032364A (en) * 1958-12-12 1962-05-01 Joy Mfg Co Swivelled hook for a travelling block
US3250563A (en) * 1964-10-02 1966-05-10 Breeze Corp Cargo hook
EP0171144A1 (en) * 1984-07-27 1986-02-12 WEATHERFORD U.S. Inc. Device for handling well casings
US5850877A (en) * 1996-08-23 1998-12-22 Weatherford/Lamb, Inc. Joint compensator
WO1999034088A1 (en) * 1997-12-24 1999-07-08 Weatherford/Lamb, Inc. Weight compensation device
WO1999058810A2 (en) * 1998-05-12 1999-11-18 Weatherford/Lamb, Inc. Apparatus and method for facilitating connection of a tubular to a string of tubulars
US6073699A (en) * 1998-03-06 2000-06-13 Weatherford/Lamb, Inc. Single joint elevator
US6412554B1 (en) 2000-03-14 2002-07-02 Weatherford/Lamb, Inc. Wellbore circulation system
US20020189863A1 (en) * 1999-12-22 2002-12-19 Mike Wardley Drilling bit for drilling while running casing
US6598501B1 (en) 1999-01-28 2003-07-29 Weatherford/Lamb, Inc. Apparatus and a method for facilitating the connection of pipes
US20030164251A1 (en) * 2000-04-28 2003-09-04 Tulloch Rory Mccrae Expandable apparatus for drift and reaming borehole
US20030164276A1 (en) * 2000-04-17 2003-09-04 Weatherford/Lamb, Inc. Top drive casing system
US20030217865A1 (en) * 2002-03-16 2003-11-27 Simpson Neil Andrew Abercrombie Bore lining and drilling
US20030221519A1 (en) * 2000-03-14 2003-12-04 Haugen David M. Methods and apparatus for connecting tubulars while drilling
US20040003490A1 (en) * 1997-09-02 2004-01-08 David Shahin Positioning and spinning device
US6679480B1 (en) * 1999-08-24 2004-01-20 Joint Center Co., Ltd. Wire fastening device and wire extending structure using wire fastening devices
US20040011531A1 (en) * 1998-12-24 2004-01-22 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US6684737B1 (en) 1999-01-28 2004-02-03 Weatherford/Lamb, Inc. Power tong
US20040045717A1 (en) * 2002-09-05 2004-03-11 Haugen David M. Method and apparatus for reforming tubular connections
US20040069500A1 (en) * 2001-05-17 2004-04-15 Haugen David M. Apparatus and methods for tubular makeup interlock
US6745646B1 (en) 1999-07-29 2004-06-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of pipes
US20040112646A1 (en) * 1994-10-14 2004-06-17 Vail William Banning Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040112603A1 (en) * 2002-12-13 2004-06-17 Galloway Gregory G. Apparatus and method of drilling with casing
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
US20040124010A1 (en) * 2002-12-30 2004-07-01 Galloway Gregory G. Drilling with concentric strings of casing
US20040123984A1 (en) * 1994-10-14 2004-07-01 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040124011A1 (en) * 2002-12-31 2004-07-01 Gledhill Andrew D. Expandable bit with a secondary release device
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
US20040173357A1 (en) * 1998-08-24 2004-09-09 Weatherford/Lamb, Inc. Apparatus for connecting tublars using a top drive
US20040194965A1 (en) * 1998-12-24 2004-10-07 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
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
US6814149B2 (en) 1999-11-26 2004-11-09 Weatherford/Lamb, Inc. Apparatus and method for positioning a tubular relative to a tong
US20040226751A1 (en) * 2003-02-27 2004-11-18 Mckay David Drill shoe
US20040237726A1 (en) * 2002-02-12 2004-12-02 Schulze Beckinghausen Joerg E. Tong
US20040244992A1 (en) * 2003-03-05 2004-12-09 Carter Thurman B. Full bore lined wellbores
US20040251050A1 (en) * 1997-09-02 2004-12-16 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US20040251055A1 (en) * 2002-07-29 2004-12-16 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
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
US6854533B2 (en) 2002-12-20 2005-02-15 Weatherford/Lamb, Inc. Apparatus and method for drilling with casing
US20050061112A1 (en) * 2003-09-19 2005-03-24 Weatherford Lamb, Inc. Adapter frame for a power frame
US20050076744A1 (en) * 2003-10-08 2005-04-14 Weatherford/Lamb, Inc. Apparatus and methods for connecting tubulars
US20050077743A1 (en) * 2003-10-08 2005-04-14 Bernd-Georg Pietras Tong assembly
US6896075B2 (en) 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
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
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
US7028585B2 (en) 1999-11-26 2006-04-18 Weatherford/Lamb, Inc. Wrenching tong
US7028586B2 (en) 2000-02-25 2006-04-18 Weatherford/Lamb, Inc. Apparatus and method relating to tongs, continous circulation and to safety slips
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US7040420B2 (en) 1994-10-14 2006-05-09 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20060113087A1 (en) * 2004-11-30 2006-06-01 Springett Frank B Methods and apparatuses for wellbore operations
US20060151181A1 (en) * 2005-01-12 2006-07-13 David Shahin One-position fill-up and circulating tool
US7090254B1 (en) 1999-04-13 2006-08-15 Bernd-Georg Pietras Apparatus and method aligning tubulars
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
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
US7134701B1 (en) * 2003-01-03 2006-11-14 Ronning James M Frame for lifting beams and other elongated loads
US20070062688A1 (en) * 2005-09-20 2007-03-22 Mike Schats Support link for wellbore apparatus
US20070062705A1 (en) * 2005-09-20 2007-03-22 Mike Schats Wellbore rig elevator systems
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
US7284617B2 (en) 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
US20070251701A1 (en) * 2006-04-27 2007-11-01 Michael Jahn Torque sub for use with top drive
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
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
US7353880B2 (en) 1998-08-24 2008-04-08 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US7360594B2 (en) 2003-03-05 2008-04-22 Weatherford/Lamb, Inc. Drilling with casing latch
US20080125876A1 (en) * 2006-11-17 2008-05-29 Boutwell Doyle F Top drive interlock
US7506564B2 (en) 2002-02-12 2009-03-24 Weatherford/Lamb, Inc. Gripping system for a tong
US7546882B2 (en) 2006-01-11 2009-06-16 Weatherford/Lamb, Inc. Stand compensator
US20090252589A1 (en) * 2004-05-01 2009-10-08 Leendert Adriaan Marinus Sonneveld Apparatus and method for handling pipe
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
US20100038095A1 (en) * 2006-12-06 2010-02-18 National Oilwell Varco, L.P. Dual-Saddle Ear Support Apparatus
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
US9931747B1 (en) * 2015-11-12 2018-04-03 Power Tork Hydraulics, Inc. Tool handling system

Cited By (164)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622846A (en) * 1947-01-21 1952-12-23 Internat Derrick & Equipment C Combined traveling block, adapter, and hook
US2633333A (en) * 1948-05-17 1953-03-31 Lynn W Storm Pipe spinner
US2712932A (en) * 1951-08-20 1955-07-12 Jay P Gould Tool supporting device
US3032364A (en) * 1958-12-12 1962-05-01 Joy Mfg Co Swivelled hook for a travelling block
US3250563A (en) * 1964-10-02 1966-05-10 Breeze Corp Cargo hook
EP0171144A1 (en) * 1984-07-27 1986-02-12 WEATHERFORD U.S. Inc. Device for handling well casings
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
US7013997B2 (en) 1994-10-14 2006-03-21 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US20040112646A1 (en) * 1994-10-14 2004-06-17 Vail William Banning Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
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
US7040420B2 (en) 1994-10-14 2006-05-09 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
US7048050B2 (en) 1994-10-14 2006-05-23 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20040123984A1 (en) * 1994-10-14 2004-07-01 Weatherford/Lamb, Inc. Methods 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
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
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
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
US6056060A (en) * 1996-08-23 2000-05-02 Weatherford/Lamb, Inc. Compensator system for wellbore tubulars
US6000472A (en) * 1996-08-23 1999-12-14 Weatherford/Lamb, Inc. Wellbore tubular compensator system
US5850877A (en) * 1996-08-23 1998-12-22 Weatherford/Lamb, Inc. Joint compensator
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US20040003490A1 (en) * 1997-09-02 2004-01-08 David Shahin Positioning and spinning device
US7509722B2 (en) 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US20040251050A1 (en) * 1997-09-02 2004-12-16 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
WO1999034088A1 (en) * 1997-12-24 1999-07-08 Weatherford/Lamb, Inc. Weight compensation device
US6073699A (en) * 1998-03-06 2000-06-13 Weatherford/Lamb, Inc. Single joint elevator
WO1999058810A2 (en) * 1998-05-12 1999-11-18 Weatherford/Lamb, Inc. Apparatus and method for facilitating connection of a tubular to a string of tubulars
WO1999058810A3 (en) * 1998-05-12 2000-01-06 Lucas Brian Ronald Apparatus and method for facilitating connection of a tubular to a string of tubulars
US7665531B2 (en) 1998-07-22 2010-02-23 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
US7137454B2 (en) 1998-07-22 2006-11-21 Weatherford/Lamb, Inc. Apparatus for facilitating the connection of tubulars using a top drive
US7669662B2 (en) 1998-08-24 2010-03-02 Weatherford/Lamb, Inc. Casing feeder
US7617866B2 (en) 1998-08-24 2009-11-17 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars using a top drive
US7090021B2 (en) 1998-08-24 2006-08-15 Bernd-Georg Pietras Apparatus for connecting tublars using a top drive
US7451826B2 (en) 1998-08-24 2008-11-18 Weatherford/Lamb, Inc. Apparatus for connecting tubulars using a top drive
US20070193751A1 (en) * 1998-08-24 2007-08-23 Bernd-Georg Pietras 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
US7513300B2 (en) 1998-08-24 2009-04-07 Weatherford/Lamb, Inc. Casing running and drilling system
US20040173357A1 (en) * 1998-08-24 2004-09-09 Weatherford/Lamb, Inc. Apparatus for connecting tublars using a top drive
US7353880B2 (en) 1998-08-24 2008-04-08 Weatherford/Lamb, Inc. Method and apparatus for connecting tubulars using a top drive
US20050121232A1 (en) * 1998-12-22 2005-06-09 Weatherford/Lamb, Inc. Downhole filter
US20040216925A1 (en) * 1998-12-22 2004-11-04 Weatherford/Lamb, Inc. Method and apparatus for drilling and lining a wellbore
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
US7117957B2 (en) 1998-12-22 2006-10-10 Weatherford/Lamb, Inc. Methods for drilling and lining a wellbore
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
US20040194965A1 (en) * 1998-12-24 2004-10-07 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US20040011531A1 (en) * 1998-12-24 2004-01-22 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
US20060011353A1 (en) * 1998-12-24 2006-01-19 Weatherford/Lamb, Inc. Apparatus and methods for facilitating the connection of tubulars using a top drive
US6598501B1 (en) 1999-01-28 2003-07-29 Weatherford/Lamb, Inc. Apparatus and a method for facilitating the connection of pipes
US6684737B1 (en) 1999-01-28 2004-02-03 Weatherford/Lamb, Inc. Power tong
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7090254B1 (en) 1999-04-13 2006-08-15 Bernd-Georg Pietras Apparatus and method aligning tubulars
US6745646B1 (en) 1999-07-29 2004-06-08 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of pipes
US6679480B1 (en) * 1999-08-24 2004-01-20 Joint Center Co., Ltd. Wire fastening device and wire extending structure using wire fastening devices
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