US3528498A - Rotary cam casing swage - Google Patents

Rotary cam casing swage Download PDF

Info

Publication number
US3528498A
US3528498A US3528498DA US3528498A US 3528498 A US3528498 A US 3528498A US 3528498D A US3528498D A US 3528498DA US 3528498 A US3528498 A US 3528498A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
anvil
hammer
member
cam
surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
William F Carothers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILSON IND Inc
Original Assignee
WILSON IND Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • 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
    • 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
    • E21B4/00Drives used in the borehole
    • E21B4/06Down-hole impacting means, e.g. hammers
    • E21B4/10Down-hole impacting means, e.g. hammers continuous unidirectional rotary motion of shaft or drilling pipe effecting consecutive impacts

Description

Sept. 15, 1970 W. F.-CAROTHERS ROTARY CAM CASING SWAGE Filed April 1, 1969 [NV EN TOR W & W v v ATTORNEYS United States Patent O 3,528,498 ROTARY CAM CASING SWAGE William F. Carothers, Houston, Tex., assignor to Wilson Industries, Inc., Houston, Tex., a corporation of Texas Filed Apr. 1, 1969, Ser. No. 812,020 Int. Cl. E21b 29/00 U.S. Cl. 166-55 11 Claims ABSTRACT OF THE DISCLOSURE A rotary swage for straightening or reforming well casings set in a borehole comprises an upper hammer portion and a lower anvil portion having a swaging head for striking the casing. The mating surfaces of the hammer and anvil form an inclined planar cam which upon rotation of the hammer causes the hammer to rise and fall striking a blow upon the anvil. The hammer and anvil are joined by means of a series of ball bearings maintained in an internal circular race between the two pieces. Secondary impact surfaces distribute the force of the downward blow of the hammer so that not all of that downward force is concentrated on the cam surface.

BACKGROUND AND SUMMARY OF THE INVENTION The instant invention relates to a novel reciprocating tool for use in a borehole to correct bends or deformities in the well casing. More particularly, the instant invention provides a simple two-piece mechanical swaging tool for connection to the end of a drill string which produces a reciprocating swaging action by suitable rotation of the drill string.

Formation pressure, deviations of the borehole, and other conditions which occur downhole often result in the collapse, bending, or deformation of a well casing set in a well bore. Such deformities in the casing can obstruct the passage of other tools downhole or otherwise interfere with well operations. Under such conditions, it becomes necessary to reform the casing to its original shape and diameter.

The straightening or reforming of downhole casing can be effected using a number of tools known to the prior art. For example, devices using hydraulic pressure to force a forming tool into the collapsed region of casing have been used. Also rotary swages have been employed which restore the shape of the casing using pressure and rolling action.

However, a very efiicient method for reforming bent or collapsed casing is simply to hammer it into its original shape.

Accordingly, there is provided by the instant invention a simple rugged device to impart a reciprocating swaging action to a swaging head by rotary action of the drill string, which device comprises an upper hammer portion independently rotatable from a lower anvil portion which has a swaging head. The hammer and anvil portion have mating surfaces forming an inclined planar cam so that upon rotation of the hammer in the proper direction, the hammer climbs the inclines on the mating surfaces of the anvil and then sharply drops delivering a blow of considerable force to the anvil. Secondary impact surfaces between hammer and anvil are also in contact when the blow is delivered so that the entire force of the blow is not received by the cam surface. Thus, the tool of this invention is preferably designed with a number of surfaces perpendicular to the direction in which the hammer strikes the anvil to distribute this force. For example, the anvil may receive a reduced diameter portion of the hammer having shoulders which are in contact with mating shoulders of the anvil when the downward blow is transmitted to the anviL/Continued rotation in the proper direction produces a repeated hammering action while rotation in the opposite direction locks the anvil and the hammer into combined rotation.

The hammer and anvil portions of the novel device of this invention are held together by a series of ball bearings disposed in an inner race between the two members which bearings function as the sole detent means between the members, thus facilitating rotation and providing an easily replaceable detent means for securing the members into working relationship.

BRIEF DESCRIPTION OF THE DRAWINGS The instant invention will be more particularly understood by reference to the particular embodiments illustrated in the accompanying drawings.

FIG. 1 is a pictorial illustration of a swaging tool in accordance with this invention disposed downhole in working relationship with respect to a deformity in a well casing.

FIG. 2 is a partially sectioned elevational view of a rotary swage in accordance with this invention.

FIG. 3 is a perspective view of the cam surface on the lower anvil piece of the swaging device of this invention.

DESCRIPTION OF SPECIFIC EMBODIMENTS Referring in particular to FIG. 1, there is shown a representative view of a subsurface well bore 9 lined with casing 17. A deformity in the casing, shown as 21, is an obstruction to the passage of pipe and/or tools to downhole positions. The rotary swage 10 in accordance with this invention is shown in place above the deformity with the cam surfaces of the upper hammer portion 13 and the lower anvil portion 15 in mating engagement. The hammer 13 is connected to drill pipe 19, which When rotated in the direction of arrow A produces a reciprocating hammering action of the hammer 13 upon anvil 15. This hammering action transmitted to swaging head 16 enables the casing to be reformed in the region of the deformity.

In FIG. 2, the rotary swage is shown in greater detail and in partial section. Upper hammer portion 13 is provided with a typical upper threaded end 19 to effect a typically threaded joint with the drilling pipe or with a string of drill collars. Any other suitable method of joining the tool to the drill pipe may be used as will be appreciated by those skilled in the art. The lower portion of hammer 13 is formed of progressively reduced diameter, axially aligned shanks 14 and 20 which respectively form downwardly facing cam surface 12 and shoulder 28 and bottom surface 36.

semicircular groove 29 is provided about the periphery of shank 14 to accommodate bearings 27 which are disposed about the entire inner race formed by grooves 27 and 31 as will be discussed further below.

Lower anvil portion 15 carries a suitable swaging head 16 which may be of any desired shape depending upon the use contemplated. As will be apparent below, the design of the novel rotary swage of this invention is such that the anvil portion can be easily replaced if a particular swaging head is desired.

Anvil 15 has a central axially aligned recess 30 which receives the reduced diameter shank portions of hammer 13. Upwardly facing cam surface 23 of anvil 15 is designed to mate with the downwardly facing cam surface 12 of hammer 13. Cam surface 23 may be more clearly seen by reference to FIG. 3.

Cam surface 23 comprises three upwardly inclined rotary surfaces each terminating in a vertical step 34. When mating cam surface 12 of hammer 13 is in engagement with cam surface 23 and hammer 13 is rotated, the

cam surface on ham mer 13 will climb the inclines of the anvil cam surface and deliver three striking blows to the anvil for each full rotation of the hammer.

Similarly, so long as some downward weight is maintained upon the anvil 15 by the hammer, rotation of the hammer in the opposite direction will lock the hammer with the anvil and make both portions of the tool turn as a unit.

It will be readily understood that suitable mating cam surfaces may be designed to deliver a single striking blow or any number of striking blows to the anvil for each revolution of drill pipe by providing the proper number of inclines and steps in the cam arrangement. Of course, the more striking blows struck per revolution of the hammer, the lesser will be the force of each blow. This is apparent inasmuch as the slope of the cam inclines, and hence the distance which the hammer falls to strike the anvil, is limited by frictional considerations.

Edges 25 of vertical steps 34 may be suitably hardened with a tungsten carbide surfacing or the like to minimize wear during the hammering operation. Such hard surfacing would also be preferred on the mating surfaces of cam 12 of the anvil.

Wall 24 of anvil 15, which surrounds the axial recess in the anvil is produced with a groove 31 to accommodate ball bearings 27 which ride in the semicircular groove 29 of the hammer. Hence, groove 31 in semicircular groove 29 forms an internal race within the tool for a series of ball bearings to minimize friction between hammer and anvil and permit the hammer to be readily rotated with respect to the anvil.

The vertical length of groove 31 is sufficient to permit the ball bearings 27 held in groove 29 to move during the reciprocating movement of the hammer 13 with respect to the anvil upon such rotation. Groove 31 is also sufficiently deep to receive the halves of bearings 27 protruding from semicircular groove 29. Quarter circular ends 39 and 40 of groove 31 accommodate the bearings 27 at their limits of upward and downward travel respectively.

Insert hole 33 communicates with groove 31 and the internal race in which bearings 27 are maintained to enable replacement of bearings when they become worn. Insert hole 33 may be suitably threaded and fitted with a screw plug 41 to retain the bearings and lubricating material in the groove during use of the tool.

Thus, bearings 27 form the only detent holding shank 14 within the axial recess of anvil 15. The dimensions of semicircular groove 29 and groove 31 are such that bearings 27 are held in groove 29 but have sufficient vertical freedom in groove 31 to move freely over the full traverse of reciprocating motion of said hammer. When the tool is withdrawn from the hole, bearings 27 will travel to the upper surface 39 of groove 31, thus performing the detent function.

Below semicircular groove 29, shoulders 28 and 43 of the hammer and anvil, respectively, make contact when hammer 13 reaches the limit of its downward movement with respect to anvil 15. Likewise, shoulder 37 of anvil 15 is in contact with the lowermost surface of the hammer 36. These surfaces 37 and 43 are disposed perpendicular to the force of the hammers and function as secondary impact surfaces to distribute the force of the blow delivered by the hammer to the anvil over not only cam surface 23, but also over the accumulative areas of the shoulders as well. This distribution of the force serves not to diminish the amount of force which the swaging head 16 delivers to the pipe deformity such as 21, but rather minimizes the concentration of hammering action in any one single surface of the anvil. When hammer 13 is rotated with respect to anvil 15, only the cam surfaces are in contact and offer frictional resistance to this rotation.

Mating cam surfaces 12 and 23 of the hammer and anvil, respectively, may be suitably lubricated using a solid lubricant such as molybdenum sulfide or graphite or the like. As indicated above, the internal race for bearings 27 is maintained lubricated to minimize frictional resistance to rotation.

Design modifications may be indulged in the structural detail of a rotary swage within the scope of this invention. For example, the cam surfaces might be circular inclined planar surfaces or might have a slight catenary shape. Despite such variations in design, the said surfaces will function as inclined cam surfaces in accordance with this invention.

Similarly, the swaging device may be provided with a central recess illustrated as 18 in FIG. 2 to minimize resistance to well fluid in the borehole when passing the tool down hole, particularly in those instances when the outer diameter of the tool is of substantially the same diameter as the casing. Likewise flutes or grooves could be provided on the exterior of the anvil to permit fluid passage thereby.

In addition, it will be appreciated that cylindrical bearings could be provided instead of spherical bearings, in which case the internal race between grooves 29 and 31 would be suitably altered in shape. It will also be appreciated that the design of the instant novel tool could provide the reduced diameter shank as an upwardly extending member from the anvil received in a recess within said hammer. Secondary impact surfaces between the members would function identically.

Also as a design alternative, the cammed surfaces could be provided internally of the tool, between the reduced diameter portion and the recess. For example, surfaces 28 and 43 could cooperate to form mating cam surfaces and surface 23 could then function as a secondary impact surface. However, it is pointed out that as the cam surface reduces in diameter, a greater slope of incline is required to produce the same traverse in total reciprocating motion. Indeed both these surfaces could be cammed, in which case an additional perpendicular secondary impact surface would still be preferred.

What is claimed is:

1. A rotary swaging tool for use in a well borehole which comprises:

a hammer member;

an anvil member provided with a swaging head at one end thereof;

said hammer member and anvil member having mating cam surfaces to produce reciprocating motion of said hammer member with respect to said anvil member when said hammer member is rotated with respect to Said anvil member;

at least one secondary impact surface upon said anvil member disposed perpendicularly to the direction of reciprocating motion, which surface is in contact with a surface of said hammer member when said mating cam surfaces are in mating engagement; and

bearing means disposed between said hammer member and said anvil member to facilitate rotation of said hammer member with respect to said anvil memher, said bearing means functioning as the sole detent means between said hammer member and said anvil member.

2. The rotary swaging tool of claim 1 wherein said hammer member and said anvil are capable of being combined in operating relationship by means of a reduced diameter portion of one of said members adapted to be received into a recess in the other of said members, and wherein said secondary impact surface is between said reduced diameter portion and the surface of said recess.

3. The rotary swaging tool of claim 2 wherein said recess has at least two secondary impact surfaces, at least one of which disposed as a shoulder perpendicular to the direction of reciprocating motion.

4. The rotary swaging tool of claim 2 wherein said bearings are disposed in an internal race defined between cooperating grooves in said reduced diameter portion and the walls of said recess, the said bearing means occupying the full radial dimension of said race between said hammer member and said anvil member.

5. The rotary swaging tool of claim 4 including means to obtain access to said internal race between said hammer member and said anvil member when said reduced diameter portion is within said recess.

6. A rotary swaging tool for use in a well borehole which comprises:

a hammer member adapted to be connected in a drill string;

.an anvil member having a swaging head at one end thereof;

said hammer member and anvil member capable of being combined in operational relationship by means of a reduced diameter portion on one of said members adapted to be received into a recess in the other of said members;

a first peripheral groove on said reduced diameter portion;

a second peripheral groove on the walls of said recess cooperating with said groove to form an internal race between said hammer member and said anvil member when disposed in working relationship;

said hammer member and said anvil member having mating inclined planar cam surfaces to produce reciprocating motion of said hammer member with respect to said anvil member when said hammer member is rotated;

at least one secondary impact surface disposed on said anvil member perpendicularly to the direction of reciprocating motion, which surface is in contact with a surface of said hammer member when said mating cam surfaces are in mating engagement; and

a plurality of bearings disposed in said race occupying 3 the full radial dimension of the said race between said hammer member and said anvil member, said bearings functioning as the sole detent means bet e a d amm r e b a a a v member- 7. The rotary swaging tool of claim 6 wherein said inclined planar cam surfaces are disposed about the periphery of said hammer member and said anvil member to produce a cam surface having the greatest possible diameter.

8. A rotary swaging tool of claim 6 wherein one of said grooves has a dimension in the direction of reciprocating motion sufficient to permit full traverse of said one of said grooves by said bearings during reciprocating motion of said hammer member with respect to said anvil member.

9. The rotary swaging tool of claim 6 wherein the walls of said recess are provided with an opening to permit access to said internal race.

10. The rotary swaging tool of claim 6 wherein the said anvil member is provided with at least two secondary impact surfaces, one of which being defined between the innermost surface of said recess and the end of said reduced diameter portion, and another of which being defined between mating shoulder surfaces in said recess and on said reduced diameter portion.

11. The rotary swaging tool of claim 6 wherein said reduced diameter portion is provided on said hammer member and said recess exists in said anvil member.

References Cited UNITED STATES PATENTS DAVID H. BROWN, Primary Examiner US. Cl. X.R.

US3528498A 1969-04-01 1969-04-01 Rotary cam casing swage Expired - Lifetime US3528498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US81202069 true 1969-04-01 1969-04-01

Publications (1)

Publication Number Publication Date
US3528498A true US3528498A (en) 1970-09-15

Family

ID=25208242

Family Applications (1)

Application Number Title Priority Date Filing Date
US3528498A Expired - Lifetime US3528498A (en) 1969-04-01 1969-04-01 Rotary cam casing swage

Country Status (1)

Country Link
US (1) US3528498A (en)

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097470A1 (en) * 1982-06-18 1984-01-04 I.P.D. Systems Limited A device for removing irregularities in or enlarging an underground duct
US4615198A (en) * 1985-06-26 1986-10-07 Westinghouse Electric Corp. Apparatus and method for reforming and rolling tube ends
WO1990005831A1 (en) * 1988-11-22 1990-05-31 Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti Pipe roller-expanding device
US5368098A (en) * 1993-06-23 1994-11-29 Weatherford U.S., Inc. Stage tool
WO2002103150A2 (en) * 2001-06-19 2002-12-27 Weatherford/Lamb, Inc, Csc Tubing expansion
WO2003080994A1 (en) * 2002-03-22 2003-10-02 Andergauge Limited A method for deforming a tubular member
US6655460B2 (en) 2001-10-12 2003-12-02 Weatherford/Lamb, Inc. Methods and apparatus to control downhole tools
US20040118574A1 (en) * 1998-12-07 2004-06-24 Cook Robert Lance Mono-diameter wellbore casing
US20040215971A1 (en) * 2001-08-29 2004-10-28 Choong-Hee Nam Anti keylog editor of activex base
US20040242044A1 (en) * 2001-06-26 2004-12-02 Philip Head Electrical conducting system
US20040262014A1 (en) * 1998-12-07 2004-12-30 Cook Robert Lance Mono-diameter wellbore casing
US20050011641A1 (en) * 1998-12-07 2005-01-20 Shell Oil Co. Wellhead
US20050073196A1 (en) * 2003-09-29 2005-04-07 Yamaha Motor Co. Ltd. Theft prevention system, theft prevention apparatus and power source controller for the system, transport vehicle including theft prevention system, and theft prevention method
US20050081358A1 (en) * 1998-11-16 2005-04-21 Cook Robert L. Radial expansion of tubular members
US20050230153A1 (en) * 2002-07-29 2005-10-20 Minshull Ronald G Device for simulataneously casing a hole while drilling
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US20060137877A1 (en) * 2002-09-20 2006-06-29 Watson Brock W Cutter for wellbore casing
US7077211B2 (en) * 1998-12-07 2006-07-18 Shell Oil Company Method of creating a casing in a borehole
US7086475B2 (en) 1998-12-07 2006-08-08 Shell Oil Company Method of inserting a tubular member into a wellbore
US7108061B2 (en) 1998-12-07 2006-09-19 Shell Oil Company Expander for a tapered liner with a shoe
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
US7146702B2 (en) 2000-10-02 2006-12-12 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7159667B2 (en) 1999-02-25 2007-01-09 Shell Oil Company Method of coupling a tubular member to a preexisting structure
US7168496B2 (en) 2001-07-06 2007-01-30 Eventure Global Technology Liner hanger
US7172021B2 (en) 2000-09-18 2007-02-06 Shell Oil Company Liner hanger with sliding sleeve valve
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US7234531B2 (en) 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7240728B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Expandable tubulars with a radial passage and wall portions with different wall thicknesses
US7243731B2 (en) 2001-08-20 2007-07-17 Enventure Global Technology Apparatus for radially expanding tubular members including a segmented expansion cone
US7258168B2 (en) 2001-07-27 2007-08-21 Enventure Global Technology L.L.C. Liner hanger with slip joint sealing members and method of use
US7290605B2 (en) 2001-12-27 2007-11-06 Enventure Global Technology Seal receptacle using expandable liner hanger
US7290616B2 (en) 2001-07-06 2007-11-06 Enventure Global Technology, L.L.C. Liner hanger
US7308755B2 (en) 2003-06-13 2007-12-18 Shell Oil Company Apparatus for forming a mono-diameter wellbore casing
US7325602B2 (en) 2000-10-02 2008-02-05 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7350563B2 (en) 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
US7360591B2 (en) 2002-05-29 2008-04-22 Enventure Global Technology, Llc System for radially expanding a tubular member
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7383889B2 (en) 2001-11-12 2008-06-10 Enventure Global Technology, Llc Mono diameter wellbore casing
US7404444B2 (en) 2002-09-20 2008-07-29 Enventure Global Technology Protective sleeve for expandable tubulars
US7416027B2 (en) 2001-09-07 2008-08-26 Enventure Global Technology, Llc Adjustable expansion cone assembly
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
US7438132B2 (en) 1999-03-11 2008-10-21 Shell Oil Company Concentric pipes expanded at the pipe ends and method of forming
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7571774B2 (en) 2002-09-20 2009-08-11 Eventure Global Technology Self-lubricating expansion mandrel for expandable tubular
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US7740076B2 (en) 2002-04-12 2010-06-22 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
US7775290B2 (en) 2003-04-17 2010-08-17 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7793721B2 (en) 2003-03-11 2010-09-14 Eventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7819185B2 (en) 2004-08-13 2010-10-26 Enventure Global Technology, Llc Expandable tubular
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
US7918284B2 (en) 2002-04-15 2011-04-05 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
CN102284642A (en) * 2011-07-12 2011-12-21 西安石油大学 Coiled tubing linear expansion cone axis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1233888A (en) * 1916-09-01 1917-07-17 Frank W A Finley Art of well-producing or earth-boring.
US1653093A (en) * 1925-12-23 1927-12-20 William J Hay Jar for fishing and drilling tools
US2228482A (en) * 1937-06-18 1941-01-14 Speedrill Corp Drill bit
US2763469A (en) * 1952-01-01 1956-09-18 Cementation Co Ltd Rotary rock drills
US2877822A (en) * 1953-08-24 1959-03-17 Phillips Petroleum Co Hydraulically operable reciprocating motor driven swage for restoring collapsed pipe
US3039530A (en) * 1959-08-26 1962-06-19 Elmo L Condra Combination scraper and tube reforming device and method of using same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1233888A (en) * 1916-09-01 1917-07-17 Frank W A Finley Art of well-producing or earth-boring.
US1653093A (en) * 1925-12-23 1927-12-20 William J Hay Jar for fishing and drilling tools
US2228482A (en) * 1937-06-18 1941-01-14 Speedrill Corp Drill bit
US2763469A (en) * 1952-01-01 1956-09-18 Cementation Co Ltd Rotary rock drills
US2877822A (en) * 1953-08-24 1959-03-17 Phillips Petroleum Co Hydraulically operable reciprocating motor driven swage for restoring collapsed pipe
US3039530A (en) * 1959-08-26 1962-06-19 Elmo L Condra Combination scraper and tube reforming device and method of using same

Cited By (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097470A1 (en) * 1982-06-18 1984-01-04 I.P.D. Systems Limited A device for removing irregularities in or enlarging an underground duct
US4602495A (en) * 1982-06-18 1986-07-29 Yarnell Ian Roland Device and method for removing irregularities in or enlarging an underground duct
US4615198A (en) * 1985-06-26 1986-10-07 Westinghouse Electric Corp. Apparatus and method for reforming and rolling tube ends
WO1990005831A1 (en) * 1988-11-22 1990-05-31 Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I Proektny Institut Neftyanoi Promyshlennosti Pipe roller-expanding device
US5014779A (en) * 1988-11-22 1991-05-14 Meling Konstantin V Device for expanding pipes
US5368098A (en) * 1993-06-23 1994-11-29 Weatherford U.S., Inc. Stage tool
US5464062A (en) * 1993-06-23 1995-11-07 Weatherford U.S., Inc. Metal-to-metal sealable port
US7357190B2 (en) 1998-11-16 2008-04-15 Shell Oil Company Radial expansion of tubular members
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
US7299881B2 (en) 1998-11-16 2007-11-27 Shell Oil Company Radial expansion of tubular members
US7246667B2 (en) 1998-11-16 2007-07-24 Shell Oil Company Radial expansion of tubular members
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US7275601B2 (en) 1998-11-16 2007-10-02 Shell Oil Company Radial expansion of tubular members
US20050081358A1 (en) * 1998-11-16 2005-04-21 Cook Robert L. Radial expansion of tubular members
US7174964B2 (en) 1998-12-07 2007-02-13 Shell Oil Company Wellhead with radially expanded tubulars
US20040262014A1 (en) * 1998-12-07 2004-12-30 Cook Robert Lance Mono-diameter wellbore casing
US20050011641A1 (en) * 1998-12-07 2005-01-20 Shell Oil Co. Wellhead
US7350564B2 (en) 1998-12-07 2008-04-01 Enventure Global Technology, L.L.C. Mono-diameter wellbore casing
US7357188B1 (en) 1998-12-07 2008-04-15 Shell Oil Company Mono-diameter wellbore casing
US7419009B2 (en) 1998-12-07 2008-09-02 Shell Oil Company Apparatus for radially expanding and plastically deforming a tubular member
US7434618B2 (en) 1998-12-07 2008-10-14 Shell Oil Company Apparatus for expanding a tubular member
US7240729B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Apparatus for expanding a tubular member
US7240728B2 (en) 1998-12-07 2007-07-10 Shell Oil Company Expandable tubulars with a radial passage and wall portions with different wall thicknesses
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7216701B2 (en) 1998-12-07 2007-05-15 Shell Oil Company Apparatus for expanding a tubular member
US7077211B2 (en) * 1998-12-07 2006-07-18 Shell Oil Company Method of creating a casing in a borehole
US7086475B2 (en) 1998-12-07 2006-08-08 Shell Oil Company Method of inserting a tubular member into a wellbore
US7108061B2 (en) 1998-12-07 2006-09-19 Shell Oil Company Expander for a tapered liner with a shoe
US7198100B2 (en) 1998-12-07 2007-04-03 Shell Oil Company Apparatus for expanding a tubular member
US7121337B2 (en) 1998-12-07 2006-10-17 Shell Oil Company Apparatus for expanding a tubular member
US7603758B2 (en) 1998-12-07 2009-10-20 Shell Oil Company Method of coupling a tubular member
US7195061B2 (en) 1998-12-07 2007-03-27 Shell Oil Company Apparatus for expanding a tubular member
US7147053B2 (en) 1998-12-07 2006-12-12 Shell Oil Company Wellhead
US7195064B2 (en) 1998-12-07 2007-03-27 Enventure Global Technology Mono-diameter wellbore casing
US7665532B2 (en) 1998-12-07 2010-02-23 Shell Oil Company Pipeline
US7185710B2 (en) 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
US20040118574A1 (en) * 1998-12-07 2004-06-24 Cook Robert Lance Mono-diameter wellbore casing
US7159667B2 (en) 1999-02-25 2007-01-09 Shell Oil Company Method of coupling a tubular member to a preexisting structure
US7556092B2 (en) 1999-02-26 2009-07-07 Enventure Global Technology, Llc Flow control system for an apparatus for radially expanding tubular members
US7438132B2 (en) 1999-03-11 2008-10-21 Shell Oil Company Concentric pipes expanded at the pipe ends and method of forming
US7350563B2 (en) 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US7234531B2 (en) 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7172021B2 (en) 2000-09-18 2007-02-06 Shell Oil Company Liner hanger with sliding sleeve valve
US7325602B2 (en) 2000-10-02 2008-02-05 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7201223B2 (en) 2000-10-02 2007-04-10 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7204007B2 (en) 2000-10-02 2007-04-17 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7146702B2 (en) 2000-10-02 2006-12-12 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7172019B2 (en) 2000-10-02 2007-02-06 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7363690B2 (en) 2000-10-02 2008-04-29 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US7363691B2 (en) 2000-10-02 2008-04-29 Shell Oil Company Method and apparatus for forming a mono-diameter wellbore casing
US20040154808A1 (en) * 2001-06-19 2004-08-12 Weatherford/Lamb, Inc. Tubing expansion
US6695065B2 (en) 2001-06-19 2004-02-24 Weatherford/Lamb, Inc. Tubing expansion
GB2394975B (en) * 2001-06-19 2006-01-11 Weatherford Lamb Tubing expansion
WO2002103150A2 (en) * 2001-06-19 2002-12-27 Weatherford/Lamb, Inc, Csc Tubing expansion
WO2002103150A3 (en) * 2001-06-19 2007-12-21 Grant Adams Tubing expansion
US7063149B2 (en) 2001-06-19 2006-06-20 Weatherford/Lamb, Inc. Tubing expansion with an apparatus that cycles between different diameter configurations
US20040242044A1 (en) * 2001-06-26 2004-12-02 Philip Head Electrical conducting system
US7114970B2 (en) 2001-06-26 2006-10-03 Weatherford/Lamb, Inc. Electrical conducting system
US7168496B2 (en) 2001-07-06 2007-01-30 Eventure Global Technology Liner hanger
US7290616B2 (en) 2001-07-06 2007-11-06 Enventure Global Technology, L.L.C. Liner hanger
US7258168B2 (en) 2001-07-27 2007-08-21 Enventure Global Technology L.L.C. Liner hanger with slip joint sealing members and method of use
US7243731B2 (en) 2001-08-20 2007-07-17 Enventure Global Technology Apparatus for radially expanding tubular members including a segmented expansion cone
US20040215971A1 (en) * 2001-08-29 2004-10-28 Choong-Hee Nam Anti keylog editor of activex base
US7416027B2 (en) 2001-09-07 2008-08-26 Enventure Global Technology, Llc Adjustable expansion cone assembly
US6655460B2 (en) 2001-10-12 2003-12-02 Weatherford/Lamb, Inc. Methods and apparatus to control downhole tools
US7025130B2 (en) 2001-10-12 2006-04-11 Weatherford/Lamb, Inc. Methods and apparatus to control downhole tools
US7383889B2 (en) 2001-11-12 2008-06-10 Enventure Global Technology, Llc Mono diameter wellbore casing
US7290605B2 (en) 2001-12-27 2007-11-06 Enventure Global Technology Seal receptacle using expandable liner hanger
WO2003080994A1 (en) * 2002-03-22 2003-10-02 Andergauge Limited A method for deforming a tubular member
US7740076B2 (en) 2002-04-12 2010-06-22 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7918284B2 (en) 2002-04-15 2011-04-05 Enventure Global Technology, L.L.C. Protective sleeve for threaded connections for expandable liner hanger
US7360591B2 (en) 2002-05-29 2008-04-22 Enventure Global Technology, Llc System for radially expanding a tubular member
US20050230153A1 (en) * 2002-07-29 2005-10-20 Minshull Ronald G Device for simulataneously casing a hole while drilling
US7237625B2 (en) * 2002-07-29 2007-07-03 Minshull Ronald G Device for simulataneously casing a hole while drilling
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
US20060137877A1 (en) * 2002-09-20 2006-06-29 Watson Brock W Cutter for wellbore casing
US7404444B2 (en) 2002-09-20 2008-07-29 Enventure Global Technology Protective sleeve for expandable tubulars
US7571774B2 (en) 2002-09-20 2009-08-11 Eventure Global Technology Self-lubricating expansion mandrel for expandable tubular
US7739917B2 (en) 2002-09-20 2010-06-22 Enventure Global Technology, Llc Pipe formability evaluation for expandable tubulars
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
US7793721B2 (en) 2003-03-11 2010-09-14 Eventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7775290B2 (en) 2003-04-17 2010-08-17 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
US7308755B2 (en) 2003-06-13 2007-12-18 Shell Oil Company Apparatus for forming a mono-diameter wellbore casing
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US20050073196A1 (en) * 2003-09-29 2005-04-07 Yamaha Motor Co. Ltd. Theft prevention system, theft prevention apparatus and power source controller for the system, transport vehicle including theft prevention system, and theft prevention method
US7819185B2 (en) 2004-08-13 2010-10-26 Enventure Global Technology, Llc Expandable tubular
CN102284642A (en) * 2011-07-12 2011-12-21 西安石油大学 Coiled tubing linear expansion cone axis

Similar Documents

Publication Publication Date Title
US3583504A (en) Gauge cutting bit
US3269470A (en) Rotary-percussion drill bit with antiwedging gage structure
US3338069A (en) Rotary drill collar
US3306381A (en) Reaming apparatus
US4978258A (en) Cutting tool
US6474701B1 (en) Tubing connector
US3419094A (en) Drill string stabilizer
US3688852A (en) Spiral coil nozzle holder
US2869825A (en) Earth boring
US4162619A (en) Drill string shock sub
USRE36848E (en) Air percussion drilling assembly
US5322136A (en) Air percussion drilling assembly
US7111694B2 (en) Fixed blade fixed cutter hole opener
US4280573A (en) Rock-breaking tool for percussive-action machines
US1233888A (en) Art of well-producing or earth-boring.
US6581699B1 (en) Steerable drilling system and method
US1477855A (en) Drill
US4275935A (en) Drilling stabilizer
US2687282A (en) Reaming bit structure for earth bores
US3269469A (en) Solid head rotary-percussion bit with rolling cutters
US3894818A (en) In-hole motors
US20090044977A1 (en) System and method for controlling a drilling system for drilling a borehole in an earth formation
US5265687A (en) Drilling short radius curvature well bores
US6213229B1 (en) Drilling motor drill bit reaming stabilizer
US4427221A (en) Drill bit nozzle retention and alignment system