US1569729A - Tool for straightening well casings - Google Patents

Tool for straightening well casings Download PDF

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Publication number
US1569729A
US1569729A US682969A US68296923A US1569729A US 1569729 A US1569729 A US 1569729A US 682969 A US682969 A US 682969A US 68296923 A US68296923 A US 68296923A US 1569729 A US1569729 A US 1569729A
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Prior art keywords
tool
rollers
set
body
lower
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Expired - Lifetime
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US682969A
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Duda Oswald
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Reed Roller Bit Co
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Reed Roller Bit Co
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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
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02Subsoil filtering
    • E21B43/10Setting of casings, screens, liners or the like in wells
    • E21B43/103Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
    • E21B43/105Expanding tools specially adapted therefor
    • 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
    • E21B29/00Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/10Reconditioning of well casings, e.g. straightening

Description

Jan. 12 1926. 'fzg 0 DUD l TOOL FOR STRAIGHTENING WELL GASINGS Filed Dec. '27, 1923 A TTORNEYS.

Patented dan. l2, 192%.

OSXVALD DUBA, F ,HOUSTONy-TEXA s rA'rsurorrice. f

,y A essrGNoR To YREED'R'OLLER Brrcolvirnn, vor notieren, Yrex. Acenronnrron or TEXAS.

TGOL STRAGE'XTENNG WELL CASINGS.

Appleman filed December 27,1923. 'serial iroyeszee.

Houston, in the county of Harris and State i of Texas, have invented certain new and use- Y ful Tmprovementsin Tools for Sraightening Vell'Casings, of which the following is a specification.

The invention is designed for expanding or straightening out the casings of oil wells or the like. d(lne object of the invention is to provide a tool of rugged construction having the capacity to act on the part to be straightened out by stages, and for this purpese T provide expanding or straightening rolls arranged in a plurality of stages or sets which act in succession upon the part to be expanded or straightened. I also provide means for supplying flushing fluid to the rollers and to the interior of the well casing.

In the drawings- Figure 1 is a part side elevation and vertical sectional view of the tool.

Fig. 2 is a cross sectional View on line 2-2 of Fig. 1.

Fig. 3 isa cross .sectional view of Fig. 1 on line 3 3, and

Fig. t is a cross sectional view on line 4-4 of Fig. 1.

The main body of the tool consists of an part upper portion 5 of cylindrical form, this be-v ing the largest diameter part of thek tool. Relow this large diameter portion there is a downwardly tapering Aportion 6, which merges into a cylindrical portion 7 which is of' smaller diameter than the upper cylindrical portion 5, and below this portion 7 the body is again tapered downwardly, as at 8 and below this is' a still smaller cylindrical portion 9 ending` in a downwardly tapered point 10. Tn the tapered portions of the body lateral recesses 11 are provided, and in the lower set of recesses are mounted rollers 12. These are mounted on bearing pins 13 which are set in inclined positions, convergent downwardly towards the vertical axis of the tool. These pins bear at their upper and lower ends in the body and they are introduced into position through recesses 11i formed in the body of the tool above the upper bearings of the pins. The pins have heads 15. They are retained in place by screw threadedstuds 16.

The rollers are generally of cylindrical form with tapered upper and lower ends. They project from the recesses slightly beyond the body'of the tool to bear on the well casing and they are smooth surfaced though other formations may be employed.

The upperset of inclined rollers 12 are mounted in a mannerV like those just kdescribed, but the body of the tool being of larger diameter herethese rolls stand out further away from the vertical aXis of the tool than ydo the l'set shown at 12. Their ages are parallel with the axes of the rolls They lie as a .set in a horizontal plane somewhat higherthan the horizontal ,plane in which the set of rollers 12 lie, the two sets ofrollers being separated by the cylindrical' portion 7 of the body.- The upper` set of rollers 12 are arranged with their axes parallel with the vertical axis of the tool.

threaded tapered shank by which it may be attached to the pipe by which it is supported andV rotated.

The tool has an axial bore 17 of two different diameters and from the lower end of this channel conduits 18 diverge and have their outlet ends 19 disposed? in vertical ref cessesQO formed in the opposite sides of the lower reduced end of the tool. AlWater or slush is forced down through the central The tool at its upper end has a screw` bore and this is discharged through the cony duits 1 8 and the lateral recesses 20 so as to create a circulation of fluid from the lower end of the tool upwardly along its sides with the effect that the rollers are cooled and lu 1 bricated and any7 material tending` to accumulate within the casing of the well, within which the tool is working, will be washed away and carried to the top of the well where it is discharged. a

This flushing fluid will reach the journal pins through ports 21 formed in the body of the tool.

Tn the operation of the device the two setsv of rollers similarly inclined but located at different levels and at different distances from the axial center of the tool will give a two stage rolling out or straightening action on the deformed part of the casing. The lower set of rollers being nearer the vcenter of the tool will of course act first and after these have performed their action then the second set of rollers l2 come, as the tool is lowered, into play, and perform the second stage of the straightening action, and following this, at an interval, is the smoothing action of the upper series of rollers. employing a two stage inclined roller organization, comparatively short rolls may be used, with comparatively closely set bearings for each roll, enabling short bearing pins to be employed all of which contributes to the rugged character of the tool. Y l

In some instances the lower rolls will have completed their action on vthe deformity and straightened this out to the extent of .the capacity of these rolls before the next-set of inclined rolls begin to perform their work, so that the work is performed gradually, rapidly and with the expenditure of a minimum amount of power.y By carrying the flushing fluid down to the reduced point, it is discharged at a level below all of the rollers so that the return flow will bring the flushing fluid against all of the rollers.

I claim:

l. l-r tool for straightening or expanding deep well casings comprising a rotary body having a lower set of rollers to engage the casing, ano-ther set of rollers at a higher level than the first set, and with its niez'abers located at a greater distance from the vertical axis of the tool than those of the lower set, the rollers of both sets being inclined upwardly and outwardly and at substann tially the same angle with the vertical axis of the tool and pins seated at their ends in the rotary body and on which the rollers turn, said rotary body having a passage for flushing water, substantially as described.

2. A tool for straightening or expanding deep well casings comprising a rotary body having a lower set of rollers to engage the casing, and another set of rollers at a higher level than the first set, and with its men'ibers located at a greater distance from the vertical axis of the tool than those of the lower set, the rollers of both sets being inclined upwardly and outwardly and atsubstantially the same angle with the vertical axis of the tool, the body of the tool having a downwardly tapered portion for each sot of inclined rollers with a substantially cylindrical body portion between the tapered portions, substantially as described.

3. A rotary tool of the character described having a pointed lower portion of reduced diameter, two downwardly tapered portions of different diameter with the larger diameter portion uppermost and with a cylindrical portion spacing apart and connecting the upper and lower adjacent parts of the two tapered portions and having also an upper 'cylindrical portion of a diameter substantially equal to the larger diameter of the upper taperedportion, inclined rollers mounted lin the tapered portions, and rollers in the upper cylindrical portion and slightly projecting therefrom, substantially described.

4. In combination in a rotary tool for straightening well caslings, a body having a large diameter upper portion and a reduced diameter lower portion, rollers mounted in pockets of said portions, said body having its lower end extending below the lower most roller and reduced Iin diameter in respect to the said reduced diameter lower portion, said body having a flushing liuid conduit extending lengthwise thereof from its upper end with ports extending therefrom through the reduced lower end at a point below the lowermost rollers, substantially as described.

In testimony whereof, I aiiix my signature.

OSWALD DUDA;

US682969A 1923-12-27 1923-12-27 Tool for straightening well casings Expired - Lifetime US1569729A (en)

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Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499630A (en) * 1946-12-05 1950-03-07 Paul B Clark Casing expander
US3818734A (en) * 1973-05-23 1974-06-25 J Bateman Casing expanding mandrel
US5034029A (en) * 1985-01-18 1991-07-23 Imperial Chemical Industries Plc Apparatus for effecting gas-liquid contact
US6425444B1 (en) 1998-12-22 2002-07-30 Weatherford/Lamb, Inc. Method and apparatus for downhole sealing
US6446323B1 (en) 1998-12-22 2002-09-10 Weatherford/Lamb, Inc. Profile formation
US6457533B1 (en) 1997-07-12 2002-10-01 Weatherford/Lamb, Inc. Downhole tubing
US6510896B2 (en) 2001-05-04 2003-01-28 Weatherford/Lamb, Inc. Apparatus and methods for utilizing expandable sand screen in wellbores
US6550539B2 (en) 2001-06-20 2003-04-22 Weatherford/Lamb, Inc. Tie back and method for use with expandable tubulars
US6578630B2 (en) 1999-12-22 2003-06-17 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US20030111267A1 (en) * 2000-06-28 2003-06-19 Pia Giancarlo T. Drill bits
US6585053B2 (en) 2001-09-07 2003-07-01 Weatherford/Lamb, Inc. Method for creating a polished bore receptacle
US20030127225A1 (en) * 2001-12-22 2003-07-10 Harrall Simon John Bore liner
US6591905B2 (en) 2001-08-23 2003-07-15 Weatherford/Lamb, Inc. Orienting whipstock seat, and method for seating a whipstock
US6598678B1 (en) 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US20030159673A1 (en) * 2002-02-22 2003-08-28 King Matthew Brandon Variable vane rotary engine
US6612481B2 (en) 2001-07-30 2003-09-02 Weatherford/Lamb, Inc. Wellscreen
US6629567B2 (en) 2001-12-07 2003-10-07 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6655459B2 (en) 2001-07-30 2003-12-02 Weatherford/Lamb, Inc. Completion apparatus and methods for use in wellbores
US6662876B2 (en) 2001-03-27 2003-12-16 Weatherford/Lamb, Inc. Method and apparatus for downhole tubular expansion
US6668930B2 (en) 2002-03-26 2003-12-30 Weatherford/Lamb, Inc. Method for installing an expandable coiled tubing patch
US6688395B2 (en) 2001-11-02 2004-02-10 Weatherford/Lamb, Inc. Expandable tubular having improved polished bore receptacle protection
US6688399B2 (en) 2001-09-10 2004-02-10 Weatherford/Lamb, Inc. Expandable hanger and packer
US6691789B2 (en) 2001-09-10 2004-02-17 Weatherford/Lamb, Inc. Expandable hanger and packer
US6695065B2 (en) 2001-06-19 2004-02-24 Weatherford/Lamb, Inc. Tubing expansion
US6695063B2 (en) 1999-12-22 2004-02-24 Weatherford/Lamb, Inc. Expansion assembly for a tubular expander tool, and method of tubular expansion
US6698517B2 (en) 1999-12-22 2004-03-02 Weatherford/Lamb, Inc. Apparatus, methods, and applications for expanding tubulars in a wellbore
US20040045720A1 (en) * 2002-09-10 2004-03-11 Weatherford/Lamb, Inc. Tubing expansion tool
US6708767B2 (en) 2000-10-25 2004-03-23 Weatherford/Lamb, Inc. Downhole tubing
US6708769B2 (en) 2000-05-05 2004-03-23 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US6712151B2 (en) * 2001-04-06 2004-03-30 Weatherford/Lamb, Inc. Tubing expansion
US20040065445A1 (en) * 2001-05-15 2004-04-08 Abercrombie Simpson Neil Andrew Expanding tubing
US6722441B2 (en) 2001-12-28 2004-04-20 Weatherford/Lamb, Inc. Threaded apparatus for selectively translating rotary expander tool downhole
US20040074640A1 (en) * 2000-12-22 2004-04-22 Anderton David Andrew Method and apparatus
US6725917B2 (en) 2000-09-20 2004-04-27 Weatherford/Lamb, Inc. Downhole apparatus
US6742598B2 (en) 2002-05-29 2004-06-01 Weatherford/Lamb, Inc. Method of expanding a sand screen
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
US6752215B2 (en) 1999-12-22 2004-06-22 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6752216B2 (en) 2001-08-23 2004-06-22 Weatherford/Lamb, Inc. Expandable packer, and method for seating an expandable packer
US20040118571A1 (en) * 2002-12-19 2004-06-24 Lauritzen J. Eric Expansion assembly for a tubular expander tool, and method of tubular expansion
US20040159446A1 (en) * 2000-10-25 2004-08-19 Weatherford/Lamb, Inc. Methods and apparatus for reforming and expanding tubulars in a wellbore
US6805196B2 (en) 2000-11-17 2004-10-19 Weatherford/Lamb, Inc. Expander
US20040216892A1 (en) * 2003-03-05 2004-11-04 Giroux Richard L Drilling with casing latch
US20040216506A1 (en) * 2003-03-25 2004-11-04 Simpson Neil Andrew Abercrombie Tubing expansion
US20040221997A1 (en) * 1999-02-25 2004-11-11 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US6820687B2 (en) 2002-09-03 2004-11-23 Weatherford/Lamb, Inc. Auto reversing expanding roller system
US20040231843A1 (en) * 2003-05-22 2004-11-25 Simpson Nell A. A. Lubricant for use in a wellbore
US20040244992A1 (en) * 2003-03-05 2004-12-09 Carter Thurman B. Full bore lined wellbores
US20040251035A1 (en) * 2001-04-06 2004-12-16 Simpson Neil Andrew Abercrombie Hydraulically assisted tubing expansion
US20040256112A1 (en) * 2001-09-07 2004-12-23 Harrall Simon J. Expandable tubulars
US20040262013A1 (en) * 2002-10-11 2004-12-30 Weatherford/Lamb, Inc. Wired casing
US20050005668A1 (en) * 2002-07-11 2005-01-13 Duggan Andrew Michael Tubing expansion
US20050011650A1 (en) * 1999-12-22 2005-01-20 Weatherford/Lamb Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US20050023001A1 (en) * 2003-07-09 2005-02-03 Hillis David John Expanding tubing
US20050045342A1 (en) * 2000-10-25 2005-03-03 Weatherford/Lamb, Inc. Apparatus and method for completing a wellbore
US20050072569A1 (en) * 2003-10-07 2005-04-07 Gary Johnston Expander tool for use in a wellbore
US6877553B2 (en) 2001-09-26 2005-04-12 Weatherford/Lamb, Inc. Profiled recess for instrumented expandable components
US20050092490A1 (en) * 2000-10-19 2005-05-05 Weatherford/Lamb, Inc. Completion apparatus and methods for use in hydrocarbon wells
US20050126251A1 (en) * 2001-08-16 2005-06-16 Peter Oosterling Apparatus for and a method of expanding tubulars
US6932161B2 (en) 2001-09-26 2005-08-23 Weatherford/Lams, Inc. Profiled encapsulation for use with instrumented expandable tubular completions
US20050194188A1 (en) * 2003-10-03 2005-09-08 Glaser Mark C. Method of drilling and completing multiple wellbores inside a single caisson
US20060065408A1 (en) * 1999-12-22 2006-03-30 Weatherford/Lamb, Inc. Methods and apparatus for expanding tubular strings and isolating subterranean zones
US20060124306A1 (en) * 2000-01-19 2006-06-15 Vail William B Iii Installation of one-way valve after removal of retrievable drill bit to complete 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
US20060196695A1 (en) * 2002-12-13 2006-09-07 Giroux Richard L Deep water drilling with casing
US20070029082A1 (en) * 2005-08-05 2007-02-08 Giroux Richard L Apparatus and methods for creation of down hole annular barrier
US7182141B2 (en) 2002-10-08 2007-02-27 Weatherford/Lamb, Inc. Expander tool for downhole use
US7234542B2 (en) 1994-10-14 2007-06-26 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US20070187113A1 (en) * 2006-02-15 2007-08-16 Weatherford/Lamb, Inc. Method and apparatus for expanding tubulars in a wellbore
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US20120090855A1 (en) * 2009-07-06 2012-04-19 Reelwell As Down hole well tool with expansion tool
US20120103596A1 (en) * 2009-07-06 2012-05-03 Reelwell As down hole well tool with rolling means

Cited By (158)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499630A (en) * 1946-12-05 1950-03-07 Paul B Clark Casing expander
US3818734A (en) * 1973-05-23 1974-06-25 J Bateman Casing expanding mandrel
US5034029A (en) * 1985-01-18 1991-07-23 Imperial Chemical Industries Plc Apparatus for effecting gas-liquid contact
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
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
US7234542B2 (en) 1994-10-14 2007-06-26 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
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
US6457533B1 (en) 1997-07-12 2002-10-01 Weatherford/Lamb, Inc. Downhole tubing
US6923261B2 (en) 1998-12-22 2005-08-02 Weatherford/Lamb, Inc. Apparatus and method for expanding a tubular
US6543552B1 (en) 1998-12-22 2003-04-08 Weatherford/Lamb, Inc. Method and apparatus for drilling and lining a wellbore
US6527049B2 (en) 1998-12-22 2003-03-04 Weatherford/Lamb, Inc. Apparatus and method for isolating a section of tubing
US20040149454A1 (en) * 1998-12-22 2004-08-05 Weatherford/Lamb, Inc. Downhole sealing
US6446323B1 (en) 1998-12-22 2002-09-10 Weatherford/Lamb, Inc. Profile formation
US20040079528A1 (en) * 1998-12-22 2004-04-29 Weatherford/Lamb, Inc. Tubing anchor
US20040226723A1 (en) * 1998-12-22 2004-11-18 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US20050127673A1 (en) * 1998-12-22 2005-06-16 Simpson Neil Andrew A. Tubing seal
US7367404B2 (en) 1998-12-22 2008-05-06 Weatherford/Lamb, Inc. Tubing seal
US6702030B2 (en) 1998-12-22 2004-03-09 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US6425444B1 (en) 1998-12-22 2002-07-30 Weatherford/Lamb, Inc. Method and apparatus for downhole sealing
US6976539B2 (en) 1998-12-22 2005-12-20 Weatherford/Lamb, Inc. Tubing anchor
US20050252662A1 (en) * 1998-12-22 2005-11-17 Weatherford/Lamb, Inc. Apparatus and method for expanding a tubular
US7168497B2 (en) 1998-12-22 2007-01-30 Weatherford/Lamb, Inc. Downhole sealing
US7124826B2 (en) 1998-12-22 2006-10-24 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US7124821B2 (en) 1998-12-22 2006-10-24 Weatherford/Lamb, Inc. Apparatus and method for expanding a tubular
US6688400B2 (en) 1998-12-22 2004-02-10 Weatherford/Lamb, Inc. Downhole sealing
US6457532B1 (en) * 1998-12-22 2002-10-01 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US20040221997A1 (en) * 1999-02-25 2004-11-11 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US20080202753A1 (en) * 1999-12-22 2008-08-28 Simon John Harrall Method and apparatus for expanding and separating tubulars in a wellbore
US7004257B2 (en) 1999-12-22 2006-02-28 Weatherford/Lamb, Inc Apparatus and methods for separating and joining tubulars in a wellbore
US20060065408A1 (en) * 1999-12-22 2006-03-30 Weatherford/Lamb, Inc. Methods and apparatus for expanding tubular strings and isolating subterranean zones
US20050155771A1 (en) * 1999-12-22 2005-07-21 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US7373990B2 (en) 1999-12-22 2008-05-20 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6712142B2 (en) 1999-12-22 2004-03-30 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US6598678B1 (en) 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US6902000B2 (en) 1999-12-22 2005-06-07 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US6698517B2 (en) 1999-12-22 2004-03-02 Weatherford/Lamb, Inc. Apparatus, methods, and applications for expanding tubulars in a wellbore
US20050077046A1 (en) * 1999-12-22 2005-04-14 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US7086478B2 (en) 1999-12-22 2006-08-08 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US6851475B2 (en) 1999-12-22 2005-02-08 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore
US7921925B2 (en) 1999-12-22 2011-04-12 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US20040173355A1 (en) * 1999-12-22 2004-09-09 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US6695063B2 (en) 1999-12-22 2004-02-24 Weatherford/Lamb, Inc. Expansion assembly for a tubular expander tool, and method of tubular expansion
US6578630B2 (en) 1999-12-22 2003-06-17 Weatherford/Lamb, Inc. Apparatus and methods for expanding tubulars in a wellbore
US6752215B2 (en) 1999-12-22 2004-06-22 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US20050011650A1 (en) * 1999-12-22 2005-01-20 Weatherford/Lamb Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US6899181B2 (en) 1999-12-22 2005-05-31 Weatherford/Lamb, Inc. Methods and apparatus for expanding a tubular within another tubular
US20060124306A1 (en) * 2000-01-19 2006-06-15 Vail William B Iii Installation of one-way valve after removal of retrievable drill bit to complete oil and gas wells
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US20050161222A1 (en) * 2000-05-05 2005-07-28 Haugen David M. Apparatus and methods for forming a lateral wellbore
US20040159466A1 (en) * 2000-05-05 2004-08-19 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US6708769B2 (en) 2000-05-05 2004-03-23 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US7267175B2 (en) 2000-05-05 2007-09-11 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US20030111267A1 (en) * 2000-06-28 2003-06-19 Pia Giancarlo T. Drill bits
US7195085B2 (en) 2000-06-28 2007-03-27 Weatherford/Lamb, Inc. Drill bit
US6725917B2 (en) 2000-09-20 2004-04-27 Weatherford/Lamb, Inc. Downhole apparatus
US20040194953A1 (en) * 2000-09-20 2004-10-07 Weatherford/Lamb, Inc. Downhole apparatus
US6742591B2 (en) 2000-09-20 2004-06-01 Weatherford/Lamb, Inc. Downhole apparatus
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