US2499630A - Casing expander - Google Patents

Casing expander Download PDF

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US2499630A
US2499630A US71416546A US2499630A US 2499630 A US2499630 A US 2499630A US 71416546 A US71416546 A US 71416546A US 2499630 A US2499630 A US 2499630A
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casing
bore
well
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body
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Paul B Clark
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Paul B Clark
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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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49938Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/4994Radially expanding internal tube

Description

March 7, 1950 P, LARK 2,499,630

CASING EXPANDER Filed Dec. 5, 1946 Vb z Fig. 3

PAUL B. CLARK INVENTOR.

41. BIZQMJE By ATTORNEYQ;

' of the well in feet.

Patented Mar. 7, 1950 UNITED STATES PATENT OFFICE 1 The invention relates to a casing reaming tool ,or expander to be used in pipe in situ in a well bore.

In the rotary method of drilling wells, the drill bit is rotated by means of a drill stem and drilling mud circulated downwardly through the bit and upwardly through the well bore. Such mud is sufflciently heavy to prevent caving of the earth formation until the well is completed, whereupon a string of pipe is lowered into the well bore and firmly anchored into position. It is well known that the pressure of the earth formations, which are in pounds per square inch, can be expected to approximate 0.45 of the depth Thus in a ten thousand foot well, a pressure of 4500 pounds per square inch can be expected. During the circulation of the drilling mud, it is not uncommon to loosen the portions of formation around the well bore and after the casing has been set in position, quite often the caving of the earth formation against the casing causes it to collapse or to be indented due to the external pressure. This is particularly true where the heavy drilling mud has been washed out of the casing and replaced with a liquid of lesser specific gravity. Many wells have been junked and abandoned due to the collapse of the casing, where such collapse restricted the passage through the casing to such an extent that it was either impossible to complete the well or to continue production.

The present invention directs itself to a means and method of expanding the casing to its original position after it has once been collapsed and while the casing stem remains in place in the well.

It is one of the objects of the invention to provide a tool which may be lowered into a well bore and by rotation and the application of a lowering force thereto operated to enlarge an area in a pipe.

Another object of the invention is to provide a method of reaming and expanding a collapsed casing in a well bore.

A still further object of the invention is to provide a tool for expanded collapsed casing in the well bore where the tool has tapered rolling surface thereon which can be forced against the reduced area of the casing.

Other and further objects of the invention will be readily apparent when the following description is considered in connection with the accompanying drawings, wherein:

Fig. 1 is a vertical sectional view taken on the line |l of Fig. 2, and illustrating, the tool embodying the invention.

a Fig. 2 is a section taken on the line 2-2 of Fig. 1.

Fig. 3 is a vertical sectional view of a portion of collapsed casing in the well with the tool in posi-' tion ready to execute the expansion or reaming of the casing.

In Fig. 3 the well bore 2 has been drilled by the rotary method and the string of pipe 3 generally known as casing has been lowered into position. The earth formation 4 has caved in or in some manner exerted an excessive pressure upon the outer periphery 5 of the casing 3. This pressure has curved the casing inwardly at 6 and I to create a reduced area 8 where the casing has been collapsed. In some instances, the collapsing action substantially exceeds that shown in Fig. 3 which is merely illustrative.

In order to restore the casing to its original contour and to eliminate the restriction in the size of the passage through the pipe, a tool It has been devised which includes the body ll having a threaded box [2 at its upper end to receive a string of drill pipe 13 by which the tool is operated.

The body ll of the tool has a passage it therethrough for the circulation of liquid if such circulation and washing action is desired.

As seen in Fig. 2 the body H has been formed with a plurality of recesses or pockets l6 which are segments of a cylinder and which are arranged in the periphery of the body. As seen in Fig. 1 each of these pockets i6 is arranged to receive a roller or expander l1. Each of these expanders is a frusto-conical member which may have a knurled surface 58 and which is arranged for rotation upon a spindle IS. The spindle i9 is arranged for insertion in a recess 20 formed in the outstanding shoulder portion 2| on the body, the body having been cut away at 22 to permit the drilling of the bore 20. This bore extends through the shoulder 25 and through the bottom surface '23 of the pockets 96 so as to form a bore 28 which receives the lower end of the shaft or spindle I 9. A shoulder 25 formed by reducing the size of the body 5 i and the threading thereof at 26 provides an area to receive the cap or nippie 2'? which is threaded thereon and tapered at 23.

In order to hold the spindle l9 against rotation, the bore 2 3 has been extended at 30 into the upper portion of the threaded area 26 and through the shoulder 25. An eccentric extension 32 on the lower end of the spindle l9 fits rotation by the nipple or cap 21. It seems obvious that the reamer or roller I! along with the thrust washer 35 can be slipp d into the pocket It and the spindle I! moved into the bore and through the roller to the position shown in Fig. 1. A retainer screw 86 can then be placed in position to insure that the spindle will not work itself out of position.

Fig. 2 shows three such assemblies carriedby the body and particular attention is directed to the fact that the reaming knurled surface I8 is tapered and additionally inclined due to the inclination of the spindle 19 so that the three rollers when taken together form a tapered lower surface which can be wedged into the reduced area I as seen in Fig. 3.

The pipe II will probably be a drill pipe which has a substantial weight and which is capable of applying a substantial rotative torque to the tool.

In operation the tool will be aflixed to the lower end of the pipe 13 and lowered into the well bore until it reaches the collapsed portion. The pipe I! will then be rotated and at least a portion of the weight of the drill pipe i 3 applied thereto so as to gradually expand the collapsed area 8 forcing the earth formation 4 back with the casing so as to restore the casing to its original cylindrical configuration.

Broadly the invention relates to a means and method of expanding collapsed casing in place in a well bore.

What is claimed is:

A casing expander including a cylindrical body, a passage therethrough, a threaded box area on the top to connect a string of pipe thereto, a threaded pin on the lower end of said body, a pocket in the periphery of said body, a reduced area on the body above said pocket to provide g 4 Y a shoulder. a bore extending into the pocket from said shoulder and inclined inwardly and downwardly, a continuation of said bore in the bottom of said et and extending into am outer recess in the top of said pin, a shaft in said bores, a frusto-conical reaming roller on said shaft with the larger portion thereof at the top so that said roller presents an inclined surface to roll on a reduced area of a casing in a well bore so that as said body is rotated and pressure applied thereto, the reduced area of the casing will be enlarged, said shaft having an eccentric portion on the lower end thereof lying within said recess, and a cap on said pin member covering said recess to retain such eccentric portion and to hold the shaft against rotation.

PAUL B. CLARK.

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

UNITED STATES PATENTS

US2499630A 1946-12-05 1946-12-05 Casing expander Expired - Lifetime US2499630A (en)

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Cited By (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638322A (en) * 1950-03-03 1953-05-12 Elmo L Condra Oil well casing cutter for side windows
US2710654A (en) * 1951-01-20 1955-06-14 Shell Dev Oil well tool guide
US2898971A (en) * 1955-05-11 1959-08-11 Mcdowell Mfg Co Roller expanding and peening tool
US3078907A (en) * 1958-08-14 1963-02-26 Imp Eastman Corp Tube flaring means
US3311971A (en) * 1964-01-16 1967-04-04 Nooter Corp Vessel lining method
US3344871A (en) * 1965-02-17 1967-10-03 Jack P Goodman Earth boring machines and method of setting poles
US3575026A (en) * 1968-01-24 1971-04-13 Pines Engineering Co Inc Rolling head for roto-form machine
US3691624A (en) * 1970-01-16 1972-09-19 John C Kinley Method of expanding a liner
US3780562A (en) * 1970-01-16 1973-12-25 J Kinley Device for expanding a tubing liner
US3945447A (en) * 1974-09-16 1976-03-23 Rapidex, Inc. Boring apparatus
US6325148B1 (en) 1999-12-22 2001-12-04 Weatherford/Lamb, Inc. Tools and methods for use with expandable tubulars
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
US6454013B1 (en) 1997-11-01 2002-09-24 Weatherford/Lamb, Inc. Expandable downhole tubing
US6457533B1 (en) 1997-07-12 2002-10-01 Weatherford/Lamb, Inc. Downhole tubing
US20020189863A1 (en) * 1999-12-22 2002-12-19 Mike Wardley Drilling bit for drilling while running casing
US6510896B2 (en) 2001-05-04 2003-01-28 Weatherford/Lamb, Inc. Apparatus and methods for utilizing expandable sand screen in wellbores
US6513588B1 (en) 1999-09-14 2003-02-04 Weatherford/Lamb, Inc. Downhole apparatus
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
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
US6629567B2 (en) 2001-12-07 2003-10-07 Weatherford/Lamb, Inc. Method and apparatus for expanding and separating tubulars in a wellbore
US20030217865A1 (en) * 2002-03-16 2003-11-27 Simpson Neil Andrew Abercrombie Bore lining and drilling
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
US20040003490A1 (en) * 1997-09-02 2004-01-08 David Shahin Positioning and spinning device
US20040011531A1 (en) * 1998-12-24 2004-01-22 Weatherford/Lamb, Inc. Apparatus and method for facilitating the connection of tubulars using a top drive
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
US6695063B2 (en) 1999-12-22 2004-02-24 Weatherford/Lamb, Inc. Expansion assembly for a tubular expander tool, and method of tubular expansion
US6695065B2 (en) 2001-06-19 2004-02-24 Weatherford/Lamb, Inc. Tubing 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
US6708769B2 (en) 2000-05-05 2004-03-23 Weatherford/Lamb, Inc. Apparatus and methods for forming a lateral wellbore
US6708767B2 (en) 2000-10-25 2004-03-23 Weatherford/Lamb, Inc. Downhole tubing
US20040065445A1 (en) * 2001-05-15 2004-04-08 Abercrombie Simpson Neil Andrew Expanding tubing
US20040069500A1 (en) * 2001-05-17 2004-04-15 Haugen David M. Apparatus and methods for tubular makeup interlock
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
US6732806B2 (en) * 2002-01-29 2004-05-11 Weatherford/Lamb, Inc. One trip expansion method and apparatus for use in a wellbore
US6742598B2 (en) 2002-05-29 2004-06-01 Weatherford/Lamb, Inc. Method of expanding a sand screen
US20040108142A1 (en) * 1994-10-14 2004-06-10 Weatherford/Lamb, Inc. Methods 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
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
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
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
US20040124011A1 (en) * 2002-12-31 2004-07-01 Gledhill Andrew D. Expandable bit with a secondary release device
US20040131812A1 (en) * 2002-10-25 2004-07-08 Metcalfe Paul David Downhole filter
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
US20040159446A1 (en) * 2000-10-25 2004-08-19 Weatherford/Lamb, Inc. Methods and apparatus for reforming and expanding tubulars in a wellbore
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
US6805196B2 (en) 2000-11-17 2004-10-19 Weatherford/Lamb, Inc. Expander
US20040216924A1 (en) * 2003-03-05 2004-11-04 Bernd-Georg Pietras Casing running and drilling system
US20040226751A1 (en) * 2003-02-27 2004-11-18 Mckay David Drill shoe
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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
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
US20050000696A1 (en) * 2003-04-04 2005-01-06 Mcdaniel Gary Method and apparatus for handling wellbore tubulars
US20050000691A1 (en) * 2000-04-17 2005-01-06 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or 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
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US1594114A (en) * 1924-11-28 1926-07-27 Adrian R Reynolds Collapsed-casing roller
US1738860A (en) * 1927-06-11 1929-12-10 Wilson B Wigle Hydraulic rotary underreamer
US1970061A (en) * 1933-01-24 1934-08-14 Lynn Kenneth Smith Swage for oil wells
US2029770A (en) * 1934-10-26 1936-02-04 Grant John Roller cutter reamer
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Patent Citations (11)

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Publication number Priority date Publication date Assignee Title
US743146A (en) * 1902-12-13 1903-11-03 Charles Fabricus Carty Tube-expander.
FR483652A (en) * 1916-11-22 1917-07-31 Antoine Arnon Method and apparatus for profiling the extension tubes by the metal
US1545039A (en) * 1923-11-13 1925-07-07 Henry E Deavers Well-casing straightening tool
US1569729A (en) * 1923-12-27 1926-01-12 Reed Roller Bit Co Tool for straightening well casings
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US1565788A (en) * 1925-01-26 1925-12-15 Anthony E Carlson Reamer
US1738860A (en) * 1927-06-11 1929-12-10 Wilson B Wigle Hydraulic rotary underreamer
US1970061A (en) * 1933-01-24 1934-08-14 Lynn Kenneth Smith Swage for oil wells
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US2122863A (en) * 1936-04-13 1938-07-05 Globe Oil Tools Co Reamer
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Cited By (228)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638322A (en) * 1950-03-03 1953-05-12 Elmo L Condra Oil well casing cutter for side windows
US2710654A (en) * 1951-01-20 1955-06-14 Shell Dev Oil well tool guide
US2898971A (en) * 1955-05-11 1959-08-11 Mcdowell Mfg Co Roller expanding and peening tool
US3078907A (en) * 1958-08-14 1963-02-26 Imp Eastman Corp Tube flaring means
US3311971A (en) * 1964-01-16 1967-04-04 Nooter Corp Vessel lining method
US3344871A (en) * 1965-02-17 1967-10-03 Jack P Goodman Earth boring machines and method of setting poles
US3575026A (en) * 1968-01-24 1971-04-13 Pines Engineering Co Inc Rolling head for roto-form machine
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