Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS1569729 A
Publication typeGrant
Publication dateJan 12, 1926
Filing dateDec 27, 1923
Priority dateDec 27, 1923
Publication numberUS 1569729 A, US 1569729A, US-A-1569729, US1569729 A, US1569729A
InventorsOswald Duda
Original AssigneeReed Roller Bit Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tool for straightening well casings
US 1569729 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

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;

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2499630 *Dec 5, 1946Mar 7, 1950Clark Paul BCasing expander
US3818734 *May 23, 1973Jun 25, 1974Bateman JCasing expanding mandrel
US5034029 *Oct 2, 1987Jul 23, 1991Imperial Chemical Industries PlcApparatus for effecting gas-liquid contact
US6425444Dec 22, 1999Jul 30, 2002Weatherford/Lamb, Inc.Method and apparatus for downhole sealing
US6446323Dec 22, 1999Sep 10, 2002Weatherford/Lamb, Inc.Profile formation
US6457532 *Dec 22, 1999Oct 1, 2002Weatherford/Lamb, Inc.Procedures and equipment for profiling and jointing of pipes
US6457533Jul 13, 1998Oct 1, 2002Weatherford/Lamb, Inc.Downhole tubing
US6510896May 4, 2001Jan 28, 2003Weatherford/Lamb, Inc.Apparatus and methods for utilizing expandable sand screen in wellbores
US6527049Dec 22, 1999Mar 4, 2003Weatherford/Lamb, Inc.Apparatus and method for isolating a section of tubing
US6543552Dec 22, 1999Apr 8, 2003Weatherford/Lamb, Inc.Method and apparatus for drilling and lining a wellbore
US6550539Jun 20, 2001Apr 22, 2003Weatherford/Lamb, Inc.Tie back and method for use with expandable tubulars
US6578630Apr 6, 2001Jun 17, 2003Weatherford/Lamb, Inc.Apparatus and methods for expanding tubulars in a wellbore
US6585053Sep 7, 2001Jul 1, 2003Weatherford/Lamb, Inc.Method for creating a polished bore receptacle
US6591905Aug 23, 2001Jul 15, 2003Weatherford/Lamb, Inc.Orienting whipstock seat, and method for seating a whipstock
US6598678Nov 13, 2000Jul 29, 2003Weatherford/Lamb, Inc.Apparatus and methods for separating and joining tubulars in a wellbore
US6612481Jul 30, 2001Sep 2, 2003Weatherford/Lamb, Inc.Wellscreen
US6629567Dec 7, 2001Oct 7, 2003Weatherford/Lamb, Inc.Method and apparatus for expanding and separating tubulars in a wellbore
US6655459Jul 30, 2001Dec 2, 2003Weatherford/Lamb, Inc.Completion apparatus and methods for use in wellbores
US6662876Mar 27, 2001Dec 16, 2003Weatherford/Lamb, Inc.Method and apparatus for downhole tubular expansion
US6668930Mar 26, 2002Dec 30, 2003Weatherford/Lamb, Inc.Method for installing an expandable coiled tubing patch
US6688395Nov 2, 2001Feb 10, 2004Weatherford/Lamb, Inc.Expandable tubular having improved polished bore receptacle protection
US6688399Sep 10, 2001Feb 10, 2004Weatherford/Lamb, Inc.Expandable hanger and packer
US6688400May 14, 2002Feb 10, 2004Weatherford/Lamb, Inc.Downhole sealing
US6691789Apr 25, 2002Feb 17, 2004Weatherford/Lamb, Inc.Expandable hanger and packer
US6695063Apr 15, 2002Feb 24, 2004Weatherford/Lamb, Inc.Expansion assembly for a tubular expander tool, and method of tubular expansion
US6695065Jun 19, 2002Feb 24, 2004Weatherford/Lamb, Inc.Tubing expansion
US6698517Nov 21, 2001Mar 2, 2004Weatherford/Lamb, Inc.Apparatus, methods, and applications for expanding tubulars in a wellbore
US6702030Aug 13, 2002Mar 9, 2004Weatherford/Lamb, Inc.Procedures and equipment for profiling and jointing of pipes
US6708767Oct 25, 2001Mar 23, 2004Weatherford/Lamb, Inc.Downhole tubing
US6708769May 4, 2001Mar 23, 2004Weatherford/Lamb, Inc.Apparatus and methods for forming a lateral wellbore
US6712142Aug 5, 2002Mar 30, 2004Weatherford/Lamb, Inc.Apparatus and methods for expanding tubulars in a wellbore
US6712151 *Apr 3, 2002Mar 30, 2004Weatherford/Lamb, Inc.Tubing expansion
US6722441Dec 28, 2001Apr 20, 2004Weatherford/Lamb, Inc.Threaded apparatus for selectively translating rotary expander tool downhole
US6725917Sep 20, 2001Apr 27, 2004Weatherford/Lamb, Inc.Downhole apparatus
US6742591Feb 3, 2003Jun 1, 2004Weatherford/Lamb, Inc.Downhole apparatus
US6742598May 29, 2002Jun 1, 2004Weatherford/Lamb, Inc.Method of expanding a sand screen
US6752215Oct 2, 2001Jun 22, 2004Weatherford/Lamb, Inc.Method and apparatus for expanding and separating tubulars in a wellbore
US6752216Aug 23, 2001Jun 22, 2004Weatherford/Lamb, Inc.Expandable packer, and method for seating an expandable packer
US6782953Mar 5, 2003Aug 31, 2004Weatherford/Lamb, Inc.Tie back and method for use with expandable tubulars
US6805196Nov 16, 2001Oct 19, 2004Weatherford/Lamb, Inc.Expander
US6820687Sep 3, 2002Nov 23, 2004Weatherford/Lamb, Inc.Auto reversing expanding roller system
US6832649Jan 17, 2003Dec 21, 2004Weatherford/Lamb, Inc.Apparatus and methods for utilizing expandable sand screen in wellbores
US6851475Mar 14, 2003Feb 8, 2005Weatherford/Lamb, Inc.Apparatus and methods for separating and joining tubulars in a wellbore
US6877553Sep 26, 2001Apr 12, 2005Weatherford/Lamb, Inc.Profiled recess for instrumented expandable components
US6899181Jan 22, 2003May 31, 2005Weatherford/Lamb, Inc.Methods and apparatus for expanding a tubular within another tubular
US6902000Mar 9, 2004Jun 7, 2005Weatherford/Lamb, Inc.Apparatus and methods for expanding tubulars in a wellbore
US6923261Dec 16, 2002Aug 2, 2005Weatherford/Lamb, Inc.Apparatus and method for expanding a tubular
US6932161Sep 26, 2001Aug 23, 2005Weatherford/Lams, Inc.Profiled encapsulation for use with instrumented expandable tubular completions
US6968896Jun 11, 2003Nov 29, 2005Weatherford/Lamb, Inc.Orienting whipstock seat, and method for seating a whipstock
US6971450Oct 8, 2003Dec 6, 2005Weatherford/Lamb, Inc.Completion apparatus and methods for use in wellbores
US6976536Mar 22, 2004Dec 20, 2005Weatherford/Lamb, Inc.Tubing expansion
US6976539Sep 11, 2003Dec 20, 2005Weatherford/Lamb, Inc.Tubing anchor
US6997266Feb 17, 2004Feb 14, 2006Weatherford/Lamb, Inc.Expandable hanger and packer
US7004257Nov 29, 2004Feb 28, 2006Weatherford/Lamb, IncApparatus and methods for separating and joining tubulars in a wellbore
US7032679Aug 25, 2004Apr 25, 2006Weatherford/Lamb, Inc.Tie back and method for use with expandable tubulars
US7048050Oct 2, 2003May 23, 2006Weatherford/Lamb, Inc.Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7048063Apr 12, 2005May 23, 2006Weatherford/Lamb, Inc.Profiled recess for instrumented expandable components
US7055597Dec 16, 2003Jun 6, 2006Weatherford/Lamb, Inc.Method and apparatus for downhole tubular expansion
US7063149Feb 2, 2004Jun 20, 2006Weatherford/Lamb, Inc.Tubing expansion with an apparatus that cycles between different diameter configurations
US7073583Dec 21, 2001Jul 11, 2006E2Tech LimitedMethod and apparatus for expanding tubing downhole
US7086477Sep 10, 2003Aug 8, 2006Weatherford/Lamb, Inc.Tubing expansion tool
US7086478Mar 17, 2005Aug 8, 2006Weatherford/Lamb, Inc.Apparatus and methods for expanding tubulars in a wellbore
US7090025Dec 1, 2003Aug 15, 2006Weatherford/Lamb, Inc.Methods and apparatus for reforming and expanding tubulars in a wellbore
US7121351Mar 24, 2004Oct 17, 2006Weatherford/Lamb, Inc.Apparatus and method for completing a wellbore
US7124821Jul 18, 2005Oct 24, 2006Weatherford/Lamb, Inc.Apparatus and method for expanding a tubular
US7124826Dec 31, 2003Oct 24, 2006Weatherford/Lamb, Inc.Procedures and equipment for profiling and jointing of pipes
US7152684Dec 20, 2002Dec 26, 2006Weatherford/Lamb, Inc.Tubular hanger and method of lining a drilled bore
US7156179May 17, 2004Jan 2, 2007Weatherford/Lamb, Inc.Expandable tubulars
US7163057Dec 10, 2004Jan 16, 2007Weatherford/Lamb, Inc.Completion apparatus and methods for use in hydrocarbon wells
US7168497Dec 30, 2003Jan 30, 2007Weatherford/Lamb, Inc.Downhole sealing
US7172027Jun 10, 2003Feb 6, 2007Weatherford/Lamb, Inc.Expanding tubing
US7174764Aug 12, 2002Feb 13, 2007E2 Tech LimitedApparatus for and a method of expanding tubulars
US7182141Oct 8, 2002Feb 27, 2007Weatherford/Lamb, Inc.Expander tool for downhole use
US7182142Apr 26, 2004Feb 27, 2007Weatherford/Lamb, Inc.Downhole apparatus
US7195085Jun 27, 2001Mar 27, 2007Weatherford/Lamb, Inc.Drill bit
US7228901Dec 1, 2005Jun 12, 2007Weatherford/Lamb, Inc.Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7234542Feb 9, 2006Jun 26, 2007Weatherford/Lamb, Inc.Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7264067Oct 1, 2004Sep 4, 2007Weatherford/Lamb, Inc.Method of drilling and completing multiple wellbores inside a single caisson
US7267175Mar 17, 2005Sep 11, 2007Weatherford/Lamb, Inc.Apparatus and methods for forming a lateral wellbore
US7303022Apr 27, 2004Dec 4, 2007Weatherford/Lamb, Inc.Wired casing
US7308944 *Oct 7, 2003Dec 18, 2007Weatherford/Lamb, Inc.Expander tool for use in a wellbore
US7311148Feb 9, 2004Dec 25, 2007Weatherford/Lamb, Inc.Methods and apparatus for wellbore construction and completion
US7334650Feb 2, 2004Feb 26, 2008Weatherford/Lamb, Inc.Apparatus and methods for drilling a wellbore using casing
US7350585Mar 25, 2004Apr 1, 2008Weatherford/Lamb, Inc.Hydraulically assisted tubing expansion
US7360594Mar 5, 2004Apr 22, 2008Weatherford/Lamb, Inc.Drilling with casing latch
US7367404Nov 16, 2004May 6, 2008Weatherford/Lamb, Inc.Tubing seal
US7373990Jun 8, 2004May 20, 2008Weatherford/Lamb, Inc.Method and apparatus for expanding and separating tubulars in a wellbore
US7387169Dec 29, 2006Jun 17, 2008Weatherford/Lamb, Inc.Expandable tubulars
US7395857Jul 7, 2004Jul 8, 2008Weatherford/Lamb, Inc.Methods and apparatus for expanding tubing with an expansion tool and a cone
US7413020Mar 5, 2004Aug 19, 2008Weatherford/Lamb, Inc.Full bore lined wellbores
US7475735Dec 22, 2006Jan 13, 2009Weatherford/Lamb, Inc.Tubular hanger and method of lining a drilled bore
US7503396Feb 15, 2006Mar 17, 2009Weatherford/LambMethod and apparatus for expanding tubulars in a wellbore
US7520328Feb 5, 2008Apr 21, 2009Weatherford/Lamb, Inc.Completion apparatus and methods for use in hydrocarbon wells
US7730965Jan 30, 2006Jun 8, 2010Weatherford/Lamb, Inc.Retractable joint and cementing shoe for use in completing a wellbore
US7798225Aug 4, 2006Sep 21, 2010Weatherford/Lamb, Inc.Apparatus and methods for creation of down hole annular barrier
US7921925May 12, 2008Apr 12, 2011Weatherford/Lamb, Inc.Method and apparatus for expanding and separating tubulars in a wellbore
US7938201Feb 28, 2006May 10, 2011Weatherford/Lamb, Inc.Deep water drilling with casing
US8117883Mar 5, 2010Feb 21, 2012Weatherford/Lamb, Inc.Tubing expansion
US8746028Mar 25, 2004Jun 10, 2014Weatherford/Lamb, Inc.Tubing expansion
US20120103596 *Jul 2, 2010May 3, 2012Reelwell Asdown hole well tool with rolling means
USRE42877Jul 9, 2010Nov 1, 2011Weatherford/Lamb, Inc.Methods and apparatus for wellbore construction and completion
Classifications
U.S. Classification72/45, 72/119, 72/463
International ClassificationE21B29/10, E21B29/00
Cooperative ClassificationE21B29/10, E21B43/105
European ClassificationE21B29/10, E21B43/10F1