|Publication number||US3780562 A|
|Publication date||Dec 25, 1973|
|Filing date||Jul 10, 1972|
|Priority date||Jan 16, 1970|
|Publication number||US 3780562 A, US 3780562A, US-A-3780562, US3780562 A, US3780562A|
|Original Assignee||Kinley J|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (101), Classifications (20)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1191 Kinley Dec. 25, 1973  DEVICE FOR EXPANDING A TUBING 2,480,648 8/1949 l-larer.. 72/479 X LINER 2,499,630 3/1950 Clark 29/523 UX 3,017,793 1/1962 Appel 72/479 lnventor: John C. Kml y, 5 Royalton 3,039,530 6/1962 Condra.. 72 479 x Houston, Tex. 77036 3,167,122 1/1965 Lang 166/277 3,191,677 6/1965 Kinley.... 166/277 [221 July 1972 3,489,220 1/1970 Kinley 166/277 21 App]. No.2 269,966
Related s, A n fi n p w Primary Examiner-Iharlie'T. Moon  Division of S61. N0. 03,369, Jan. 16, 1970, Pat. N0. w'lson Matthews  US. Cl. 72/479, 72/370 ABSTRACT A device and method for expanding a tubing liner hav 8 ing a preformed reverse bend by pulling the metal of the liner outwardly to expand the reverse bend and  References Cited bring the liner into a substantially cylindrical shape in- UNITED STATES PATENTS side of a well tubing or other pipe.
1,233,888 7/1917 Leonard 166/207 X 5 Claims, 7 Drawing I 5/ F 1 g 26 i I l DEVICE FOR EXPANDING A TUBING LINER CROSS-REFERENCE TO RELATED APPLICA- TION This application is a divisional application of my prior U.S. Pat. application, Ser. No. 3,369, tiled Jan. 16, 1970, now Pat. No. 3,691,624, and copending herewith.
BACKGROUND OF THE INVENTION The field of this invention is apparatus and methods for installing liners in well tubing or other pipe.
Apparatus for setting a liner or patch in a well tubing or pipe is disclosed in U.S. Pat. Nos. 3,191,677 and 3,424,244. Also, in U.S. Pat. No. 3,489,220, an expander device was disclosed for expanding a liner having a reverse bend in it into a substantially cylindrical shape inside of a well tubing or pipe. Such expansion was accomplished by engaging the inside surface of the reverse bend with the surface of a tapered groove to push the metal outwardly to form a substantially cylindrical shape. It has been found that, using such expander device, occasionally the metal is folded over itself during the expansion of the liner, which results in an inadequate or defective seating and sealing of the liner in the tubing. Furthermore, since such expansion of the liner occurs down in the well and therefore cannot be observed, the occurrence of the fold-over cannot be readily detected.
SUMMARY OF THE INVENTION The present invention relates to a new and improved device and method for expanding a liner having a reverse bend by pulling the metal outwardly to a substantially cylindrical shape, which obviates the occasional folding of the liner on itself as occurred with the device of said U.S. Pat. No. 3,489,220.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is an elevation, partly in section, illustrating the method and apparatus of this invention;
FIG. 2 is a front view of a portion of the expander device of the present invention;
FIG. 3 is an elevation, partly in section, taken on line 3-3 of FIG. 2, and illustrating the expander device of this invention; 1
FIG. 4 is a sectional view taken on line 44 of FIG. 3, with a metal liner shown in position thereon, as the expander device of FIG. 3 is being forced downwardly through the liner;
FIG. 5 is a sectional view taken on line 5--5 of FIG.
3 to illustrate the liner as it is expanded to an intermedi- DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, the letter B designates generally the expander device of this invention which is adapted to be lowered into a pipe or tubing T with a liner or patch P so as to position same opposite a hole 12 or other area of the tubing or pipe T which is to be covered or patched. The expander E is preferably lowered on a flexible line (not shown) which is a conventional wire line having therewith suitable wire line jars or other means for imparting downward jarring movement to the expander deviceE for driving same downwardly in the liner P when it is properly positioned in the tubing T.
Prior to lowering the expander E downwardly into the well, the defect or opening 12 is located by known means, and then a removable stop R of conventional construction is dropped or lowered into a seated position in one of the tubing joints 15, or at any other suitable point where the stop R may be releasably supported. A collapsible support S, an example of which is illustrated in U.S. Pat. No. 3,424,244, is suitably disposed in the tubing T above the stop R, and it may be located directly upon the stop R. As illustrated in FIG. 1 of the drawings, a spacer bar B, which is also disclosed in said U.S. Pat. No. 3,424,244 is disposed on the stop R to support the collapsible support S. As explained in said patent, more than one of the collapsible supports S may be employed and one or more of the spacer bars B may be employed. The collapsible support S is adapted to collapse when contacted by the lower end of the expander E so as to enable the expander E to move downwardly completely through the liner P to expand same throughout substantially its full length to a substantially cylindrical shape.
Considering thedetails of the expander device E, such device includes a body 20 which has its external surface 20a conically shaped, so as to have a taper upwardly and outwardly from the lower end 20b to an intermediate substantially cylindrical portion 20c, the intersection of which is formed at an edge 20d (FIG. 2). In the form of the invention illustrated in the drawings, the conical shape of the external surface 20a is offset with respect to the longitudinal axis of the body 20 so that the extreme edge 20e appearing at the right-hand side of FIG. 3, and also appearing in FIGS. 4-7, is substantially vertical so as to assist in the guiding of the expander device E during the lowering thereof. However, the conical shape of the surface 200 may be provided by having the conical shape formed on some other axis such as the same axis as the central axis of the body 20, in which case the surface20e would also have a slight taper corresponding basically to the taper visible on both sides of the surface 20a in FIG. 2.
The conical shape of the external surface 20a is significant in the present invention because such conical shape enables the expander device E to pull the metal or other material of the liner P outwardly from its reverse bent position (FIG. 4) to the substantially cylindrical position of FIG. 7.
The liner or patch P has a reverse bend 30 (FIG. 4) preformed therein prior to the lowering of the liner P into the tubing T. The expander body 20 is provided with a groove 31 which is at least deep enough compared to the depth of the bend 30 in the liner P so that the surface of the groove 31 does not exert an appreciable pushing force on the liner P during the forcing of the expander E downwardly within the liner P. the liner P at all times, since the liner P is expanded by the pulling of the material of the liner P outwardly due to the enlarging effect of the conical surface 20a, as previously explained.
On each side of the groove 31, tapered legs or cusps 32 are formed, each of which is curved and preferably corresponds with the curvature of the liner P in its-initial reverse bent position of FIG. 4. The cusps 32 could be formed as a sharp point from a theoretical standpoint, since they merely retain the metal as it is being pulled outwardly by the external surface a, but to prevent a sharp bend in the metal of the liner P as it is being pulled outwardly, the cusps 32 are preferably rounded or curved as shown in the drawings so that as the metal or material of the liner P is pulled outwardly, the gentle curving of the cusps 32 facilitates the outward pulling of the metal. By comparing the sequence of views, FIGS. 4-6, the pulling action by the external surface 20a and the guiding action of the cusps 32 can be seen. I
It is to be noted that the angle of inclination of the cusps with respect to the longitudinal axis of the body 20 of the device B should be greater than the angle the surface of the groove 31 makes with the longitudinal axis of the body 20 so as to avoid any pushing of the metal at the reverse, bend during the downward movement of the expander device E relative to the liner P. The reverse bend 30 is shown as spaced slightly from the surface of the groove 31 in FIG. 4, which is the initial starting position of the expander device E and the liner P, but it is not necessary for the reverse bend 30 .to be completely out of contact with the surface of the groove 31, so long as the surface of the groove 31 does not contribute appreciably to the enlargement of the liner P.
It is to be noted that in the preferredform of the invention, the groove 31 is substantially vertical or stated diflerently, the inside or bottom surface of the groove 31 extends substantiallyparallel to the longitudinal axis of the body 20. Also, the groove 31 communicates with a central passage 35 in the body 20 and one or more inclined passages 36 which establish communication for the bypass of fluid through the body 20 to prevent a fluid lockduring the movement of the expander device E downwardly through the liner P, should fluid be present in the tubing T.
The lower end of the expander device E has a recess into which a portion of the upper end of the liner P is crimped or bent (FIG. I) so as to releasably hold the liner P on the lower end of the expander E for the lowering of same into position on the collapsible support S (FIG. 1). In the normal installations, the liner P is usually at least ten feet long. The length is of course not to be considered a limitation with respect to the invention, since the length of the liner P may be varied for different applications. In any event, the initial jarring of the expander device E releases the expander device E- from its releasable connection-at the recess 40 so as to permit the expander E to thereafter move downwardly in the liner P for expanding same, as will be more fully explained. It will also be appreciated that other suitable releasing means for releasably attaching the expander device E to the liner P may be employed. In some instances, the liner P may be lowered separately into the tubing T, and the expander device E may then be lowered subsequently for the insertion of the expander device E into the upper end of the liner P. However, due to the difi'iculties of alignment of the expander device E and the liner P, such a separate lowering of the device E and the liner P normally is not recommended.
The expander device E has a tapered or reduced body portion 50 above the substantially cylindrical portion 200, through which the fluid discharge or bypass passages 36 extend. An upper stem 51 extends upwardly from the body portion 50, and preferably a centralizing means 52, which in the preferred form of the invention, includes a plurality of ribs 520, is mounted. Such centralizing means 52 may be formed by machining a part of the stem 51 so that the ribs 52a are actually integral with the stem 51. The upper end of the stem 51 has a fishing neck 53 to which a conventional running-in tool is releasably attached for lowering the device E.to the position shown in FIG. I. Thereafter, the running-in tool is released and withdrawn from the well, and link jars or rein jars, or other suitable jarring devices which are supported on a wire line (not illustrated) are lowered, usually together with a finishing vice E to drive same downwardly in the liner P.
In the operation or use of the apparatus of this invention, the removable stop R is initially placed in position in the tubing T at a point below the hole or other defect 12 which is to be patched or covered by the liner or tubing patch P. Then, as explained in said US Pat. No. 3,424,244, the spacer or spacers B and the collapsible support S are lowered into position in the manner illustrated in FIG. 1. Thereafter; the expander device E with the liner P releasably attached at its lower end are lowered into the tubing or pipe T with the running-in tool on the wire line until the lower end of the liner or patch P engages the upper surface of the collapsible stop S.
After the liner P has contacted the upper end of the collapsible support S, the running-in tool is released and withdrawn from the well, leaving the device E as shown in FIG. 1. Thereafter, the jars are lowered on a wireline, as explained above, so that the jarring of the expander device E may be accomplished. The initial jarring releases the crimped connection at the recess 40, permitting the expander device E to move downwardly and to expand the liner P outwardly by pulling same outwardly due to the tapered or conical surface 20a of the body 20, as previously explained. The expander device E moves downwardly through the liner P until the lower end thereof reaches the upper end of the collapsible support S, at which time the collapsible support S is caused to collapse, at least partially, as explained in said US. Pat. No. 3,424,244, and this permits the expander device E to move completely through the liner P for expanding the liner P to its substantially cylindrical shape (FIG. 7) throughout substantially the full length of the liner P.
Additional expanding tools for a final expansion of the liner P may be employed, an example of which is shown in US. Pat. No. 3,191,677, for forcing the liner out to form a seal with the inside of the tubing T so as to prevent leakage through the hole 12 or other defect in the pipe T.
With the present invention, the liner is expanded without any danger of a fold-over of the metal on itself during the expansion and therefore, the expansion to the substantially cylindrical shape illustrated in FIG. 7 of the drawings is assured under a normal operating condition. The term cusp" and cusps as used herein and in the claims is intended to and does include the rounded shape or lobes shown in particular at 32 in FIGS. 4-7 of the drawings, and it should be understood that such cusps are not sharply pointed in practice.
The foregoing disclosure and description of the invention are illustrative and explanatory thereof, and various changes in the size, shape, and materials as well as in the details of the illustrated construction may be made without departing from the spirit of the invention.
I claim: 1. An expander device for expanding a metal liner in a tubing or pipe, wherein the liner is preformed with a reverse bend in it, comprising:
an expander body having a conical external surface with a longitudinally extending groove therein forming longitudinally extending curved surfaces on each side of the groove; said conical external surface having its smallest diameter at its lower end which corresponds with the inside diameter of the liner in its bent shape; the bottom of said groove being disposed inwardly of the inside of the reverse bend of the liner and substantially out of contact therewith; and said conical external surface tapering upwardly and outwardly from said lower end to a larger diameter which corresponds essentially to the internal diameter of the liner when expanded into a substantially cylindrical shape, and with the bottom of the groove disposed substantially out of contact with the inside surface of the reverse bend throughout the full length of the groove and the reverse bend whereby upon forcing the expander device downwardly in the liner, the metal of the liner is gradually pulled outwardly from its reverse bend shapeto the susbstantially cylindrical shape. 2. The structure set forth in claim 1, wherein; the bottom of said groove is disposed substantially parallel to the axis of the expander tool from its lower end upwardly for a majority of its length. 3. The structure set forth in claim 1, wherein: each of said longitudinally extending curved surfaces is curved on each side of said groove for engagement with the inside surface of the liner as the liner is being pulled outwardly to prevent sharp bends from being formed in the liner as it is pulled outwardly. 4. The structure set forth in claim 1, wherein: each of said longitudinally extending curved surfaces is inclined upwardly and outwardly at an angle with respect to the longitudinal axis of said body which is not less than any angle of inclination of the surface of said groove with respect to said axis to assure that the liner is pulled outwardly rather than being pushed by the surface of the groove. 5. The structure set forth in claim 1, wherein: the external surface of said body above said conical external surface is substantially cylindrical and is of substantially the same external diameter as the internal diameter of said liner when in the substantially cylindrical shape.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1233888 *||Sep 1, 1916||Jul 17, 1917||Frank W A Finley||Art of well-producing or earth-boring.|
|US2480648 *||Nov 3, 1947||Aug 30, 1949||Harer Delmar C||Stud extractor and method of making the same|
|US2499630 *||Dec 5, 1946||Mar 7, 1950||Clark Paul B||Casing expander|
|US3017793 *||Feb 16, 1959||Jan 23, 1962||Appel Process Ltd||Forming tools, machines and methods|
|US3039530 *||Aug 26, 1959||Jun 19, 1962||Condra Elmo L||Combination scraper and tube reforming device and method of using same|
|US3167122 *||May 4, 1962||Jan 26, 1965||Pan American Petroleum Corp||Method and apparatus for repairing casing|
|US3191677 *||Apr 29, 1963||Jun 29, 1965||Kinley Myron M||Method and apparatus for setting liners in tubing|
|US3489220 *||Aug 2, 1968||Jan 13, 1970||J C Kinley||Method and apparatus for repairing pipe in wells|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5099575 *||Mar 6, 1991||Mar 31, 1992||Mccord Heat Transfer Corporation||Method for connecting a coolant tube and header of a heat exchanger|
|US5785120 *||Nov 14, 1996||Jul 28, 1998||Weatherford/Lamb, Inc.||Tubular patch|
|US5957195 *||Oct 7, 1997||Sep 28, 1999||Weatherford/Lamb, Inc.||Wellbore tool stroke indicator system and tubular patch|
|US6098717 *||Oct 8, 1997||Aug 8, 2000||Formlock, Inc.||Method and apparatus for hanging tubulars in wells|
|US6142230 *||Oct 31, 1998||Nov 7, 2000||Weatherford/Lamb, Inc.||Wellbore tubular patch system|
|US6325148||Dec 22, 1999||Dec 4, 2001||Weatherford/Lamb, Inc.||Tools and methods for use with expandable tubulars|
|US6415863||Mar 4, 1999||Jul 9, 2002||Bestline Liner System, Inc.||Apparatus and method for hanging tubulars in wells|
|US6425444||Dec 22, 1999||Jul 30, 2002||Weatherford/Lamb, Inc.||Method and apparatus for downhole sealing|
|US6446323||Dec 22, 1999||Sep 10, 2002||Weatherford/Lamb, Inc.||Profile formation|
|US6454013||Nov 2, 1998||Sep 24, 2002||Weatherford/Lamb, Inc.||Expandable downhole tubing|
|US6457533||Jul 13, 1998||Oct 1, 2002||Weatherford/Lamb, Inc.||Downhole tubing|
|US6470966||May 7, 2001||Oct 29, 2002||Robert Lance Cook||Apparatus for forming wellbore casing|
|US6497289||Dec 3, 1999||Dec 24, 2002||Robert Lance Cook||Method of creating a casing in a borehole|
|US6513588||Sep 13, 2000||Feb 4, 2003||Weatherford/Lamb, Inc.||Downhole apparatus|
|US6527049||Dec 22, 1999||Mar 4, 2003||Weatherford/Lamb, Inc.||Apparatus and method for isolating a section of tubing|
|US6543552||Dec 22, 1999||Apr 8, 2003||Weatherford/Lamb, Inc.||Method and apparatus for drilling and lining a wellbore|
|US6557640||Jun 7, 2000||May 6, 2003||Shell Oil Company||Lubrication and self-cleaning system for expansion mandrel|
|US6561227||May 9, 2001||May 13, 2003||Shell Oil Company||Wellbore casing|
|US6568471||Feb 24, 2000||May 27, 2003||Shell Oil Company||Liner hanger|
|US6575240||Feb 24, 2000||Jun 10, 2003||Shell Oil Company||System and method for driving pipe|
|US6575250||Nov 15, 2000||Jun 10, 2003||Shell Oil Company||Expanding a tubular element in a wellbore|
|US6598678||Nov 13, 2000||Jul 29, 2003||Weatherford/Lamb, Inc.||Apparatus and methods for separating and joining tubulars in a wellbore|
|US6631759||Feb 12, 2002||Oct 14, 2003||Shell Oil Company||Apparatus for radially expanding a tubular member|
|US6631760||May 9, 2001||Oct 14, 2003||Shell Oil Company||Tie back liner for a well system|
|US6631769||Feb 15, 2002||Oct 14, 2003||Shell Oil Company||Method of operating an apparatus for radially expanding a tubular member|
|US6634431||Oct 3, 2001||Oct 21, 2003||Robert Lance Cook||Isolation of subterranean zones|
|US6640903||Mar 10, 2000||Nov 4, 2003||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US6684947||Feb 20, 2002||Feb 3, 2004||Shell Oil Company||Apparatus for radially expanding a tubular member|
|US6688400||May 14, 2002||Feb 10, 2004||Weatherford/Lamb, Inc.||Downhole sealing|
|US6702029||Dec 22, 1999||Mar 9, 2004||Weatherford/Lamb, Inc.||Tubing anchor|
|US6705395||Feb 12, 2002||Mar 16, 2004||Shell Oil Company||Wellbore casing|
|US6708769||May 4, 2001||Mar 23, 2004||Weatherford/Lamb, Inc.||Apparatus and methods for forming a lateral wellbore|
|US6712154||Oct 18, 2001||Mar 30, 2004||Enventure Global Technology||Isolation of subterranean zones|
|US6725919||Sep 25, 2001||Apr 27, 2004||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US6732806||Jan 29, 2002||May 11, 2004||Weatherford/Lamb, Inc.||One trip expansion method and apparatus for use in a wellbore|
|US6739392||Sep 25, 2001||May 25, 2004||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US6742606||Feb 11, 2003||Jun 1, 2004||Weatherford/Lamb, Inc.||Method and apparatus for drilling and lining a wellbore|
|US6745845||Dec 10, 2001||Jun 8, 2004||Shell Oil Company||Isolation of subterranean zones|
|US6758278||Sep 25, 2001||Jul 6, 2004||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US6823937||Feb 10, 2000||Nov 30, 2004||Shell Oil Company||Wellhead|
|US6851475||Mar 14, 2003||Feb 8, 2005||Weatherford/Lamb, Inc.||Apparatus and methods for separating and joining tubulars in a wellbore|
|US6857473||Mar 7, 2002||Feb 22, 2005||Shell Oil Company||Method of coupling a tubular member to a preexisting structure|
|US6892819||Sep 25, 2001||May 17, 2005||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US6899181||Jan 22, 2003||May 31, 2005||Weatherford/Lamb, Inc.||Methods and apparatus for expanding a tubular within another tubular|
|US6920935||Aug 9, 2002||Jul 26, 2005||Weatherford/Lamb, Inc.||Expandable downhole tubing|
|US6923261||Dec 16, 2002||Aug 2, 2005||Weatherford/Lamb, Inc.||Apparatus and method for expanding a tubular|
|US6966370||Feb 20, 2002||Nov 22, 2005||Shell Oil Company||Apparatus for actuating an annular piston|
|US6968618||May 12, 2003||Nov 29, 2005||Shell Oil Company||Expandable connector|
|US6976539||Sep 11, 2003||Dec 20, 2005||Weatherford/Lamb, Inc.||Tubing anchor|
|US6976541||Jan 22, 2003||Dec 20, 2005||Shell Oil Company||Liner hanger with sliding sleeve valve|
|US7004257||Nov 29, 2004||Feb 28, 2006||Weatherford/Lamb, Inc||Apparatus and methods for separating and joining tubulars in a wellbore|
|US7011161||Oct 1, 2002||Mar 14, 2006||Shell Oil Company||Structural support|
|US7036582||Oct 1, 2002||May 2, 2006||Shell Oil Company||Expansion cone for radially expanding tubular members|
|US7040396||Feb 20, 2002||May 9, 2006||Shell Oil Company||Apparatus for releasably coupling two elements|
|US7044218||Oct 1, 2002||May 16, 2006||Shell Oil Company||Apparatus for radially expanding tubular members|
|US7044221||Feb 20, 2002||May 16, 2006||Shell Oil Company||Apparatus for coupling a tubular member to a preexisting structure|
|US7048062||Oct 1, 2002||May 23, 2006||Shell Oil Company||Method of selecting tubular members|
|US7055608||Apr 18, 2003||Jun 6, 2006||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US7063142||Feb 15, 2002||Jun 20, 2006||Shell Oil Company||Method of applying an axial force to an expansion cone|
|US7077213||Oct 1, 2002||Jul 18, 2006||Shell Oil Company||Expansion cone for radially expanding tubular members|
|US7093653||Oct 24, 2003||Aug 22, 2006||Weatherford/Lamb||Downhole filter|
|US7100684||Dec 18, 2002||Sep 5, 2006||Enventure Global Technology||Liner hanger with standoffs|
|US7100685||Jun 13, 2003||Sep 5, 2006||Enventure Global Technology||Mono-diameter wellbore casing|
|US7108061||Oct 25, 2002||Sep 19, 2006||Shell Oil Company||Expander for a tapered liner with a shoe|
|US7108072||Mar 5, 2003||Sep 19, 2006||Shell Oil Company||Lubrication and self-cleaning system for expansion mandrel|
|US7121352||Jul 14, 2003||Oct 17, 2006||Enventure Global Technology||Isolation of subterranean zones|
|US7124821||Jul 18, 2005||Oct 24, 2006||Weatherford/Lamb, Inc.||Apparatus and method for expanding a tubular|
|US7124830||Jul 26, 2005||Oct 24, 2006||Weatherford/Lamb, Inc.||Methods of placing expandable downhole tubing in a wellbore|
|US7159665||Jul 19, 2002||Jan 9, 2007||Shell Oil Company||Wellbore casing|
|US7168497||Dec 30, 2003||Jan 30, 2007||Weatherford/Lamb, Inc.||Downhole sealing|
|US7168499||Sep 10, 2004||Jan 30, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7172024||Mar 31, 2003||Feb 6, 2007||Shell Oil Company||Mono-diameter wellbore casing|
|US7172027||Jun 10, 2003||Feb 6, 2007||Weatherford/Lamb, Inc.||Expanding tubing|
|US7267175||Mar 17, 2005||Sep 11, 2007||Weatherford/Lamb, Inc.||Apparatus and methods for forming a lateral wellbore|
|US7308944||Oct 7, 2003||Dec 18, 2007||Weatherford/Lamb, Inc.||Expander tool for use in a wellbore|
|US7475723||Jul 21, 2006||Jan 13, 2009||Weatherford/Lamb, Inc.||Apparatus and methods for creation of down hole annular barrier|
|US7665532||Feb 23, 2010||Shell Oil Company||Pipeline|
|US7712522||Apr 3, 2007||May 11, 2010||Enventure Global Technology, Llc||Expansion cone and system|
|US7739917||Aug 18, 2003||Jun 22, 2010||Enventure Global Technology, Llc||Pipe formability evaluation for expandable tubulars|
|US7740076||Mar 4, 2003||Jun 22, 2010||Enventure Global Technology, L.L.C.||Protective sleeve for threaded connections for expandable liner hanger|
|US7757774||Oct 12, 2005||Jul 20, 2010||Weatherford/Lamb, Inc.||Method of completing a well|
|US7775290||Apr 15, 2004||Aug 17, 2010||Enventure Global Technology, Llc||Apparatus for radially expanding and plastically deforming a tubular member|
|US7793721||Mar 11, 2004||Sep 14, 2010||Eventure Global Technology, Llc||Apparatus for radially expanding and plastically deforming a tubular member|
|US7798225||Aug 4, 2006||Sep 21, 2010||Weatherford/Lamb, Inc.||Apparatus and methods for creation of down hole annular barrier|
|US7819185||Aug 12, 2005||Oct 26, 2010||Enventure Global Technology, Llc||Expandable tubular|
|US7886831||Feb 15, 2011||Enventure Global Technology, L.L.C.||Apparatus for radially expanding and plastically deforming a tubular member|
|US7918284||Mar 31, 2003||Apr 5, 2011||Enventure Global Technology, L.L.C.||Protective sleeve for threaded connections for expandable liner hanger|
|US7992644||Dec 17, 2007||Aug 9, 2011||Weatherford/Lamb, Inc.||Mechanical expansion system|
|US8899336||Aug 3, 2011||Dec 2, 2014||Weatherford/Lamb, Inc.||Anchor for use with expandable tubular|
|US20030094278 *||Oct 1, 2002||May 22, 2003||Shell Oil Co.||Expansion cone for radially expanding tubular members|
|US20030094279 *||Oct 1, 2002||May 22, 2003||Shell Oil Co.||Method of selecting tubular members|
|US20030116325 *||Dec 18, 2002||Jun 26, 2003||Cook Robert Lance||Liner hanger with standoffs|
|US20030132032 *||Feb 11, 2003||Jul 17, 2003||Weatherford/Lamb, Inc.||Method and apparatus for drilling and lining a wellbore|
|US20030233524 *||Jun 12, 2002||Dec 18, 2003||Poisner David I.||Protected configuration space in a protected environment|
|US20040045616 *||Apr 18, 2003||Mar 11, 2004||Shell Oil Co.||Tubular liner for wellbore casing|
|US20040045718 *||Jan 22, 2003||Mar 11, 2004||Brisco David Paul||Liner hanger with sliding sleeve valve|
|US20050072569 *||Oct 7, 2003||Apr 7, 2005||Gary Johnston||Expander tool for use in a wellbore|
|US20050098323 *||Apr 18, 2003||May 12, 2005||Shell Oil Co.||Forming a wellbore casing while simultaneously drilling a wellbore|
|US20060076147 *||Oct 12, 2005||Apr 13, 2006||Lev Ring||Methods and apparatus for manufacturing of expandable tubular|
|US20070062694 *||Jul 21, 2006||Mar 22, 2007||Lev Ring||Apparatus and methods for creation of down hole annular barrier|
|US20090151930 *||Dec 17, 2007||Jun 18, 2009||Richard Lee Giroux||Mechanical expansion system|
|U.S. Classification||72/479, 72/370.6|
|International Classification||E21B29/00, E21B29/10, B21C37/15, B21C37/06, B21C37/30, B29C63/34, B21D39/08, B21D39/20|
|Cooperative Classification||B29C63/343, E21B29/10, B21C37/15, B21D39/20, B21C37/30|
|European Classification||B21C37/15, B29C63/34D, B21C37/30, B21D39/20, E21B29/10|