|Publication number||US3039530 A|
|Publication date||Jun 19, 1962|
|Filing date||Aug 26, 1959|
|Priority date||Aug 26, 1959|
|Publication number||US 3039530 A, US 3039530A, US-A-3039530, US3039530 A, US3039530A|
|Inventors||Condra Elmo L|
|Original Assignee||Condra Elmo L|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (10), Referenced by (140), Classifications (7), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
June 19, 1962 E. L. CONDRA COMBINATION SCRAPER AND TUBE REFORMING DEVICE AND METHOD OF USING SAME Filed Aug. 26, 1959 IN VEN TOR.
United States atent 3,039,530 COMBINATION SCRAPER AND TUBE REFORM- ING DEVICE AND METHOD OF USING SAME Elmo L. Condra, 1067 Orizaba Ave., Long Beach, Calif. Filed Aug. 26, 1959, Ser. No. 836,138 7 Claims. (Cl. 166-55) The present invention relates generally to the oil industry, and more particularly to an apparatus and method of using same in a single operation to remove foreign material adhering to the interior surface of a downwardly extending tubular member, and to reform any existing inwardly deformed portions thereof to their initial configuration.
In the production of oil from wells in many fields, it is common for the interior of tubular members in the well through which the oil flows to develop a coating of a heavy deposit of solid foreign material. Also, due to various causes, portions of these tubular members become deformed inwardly. Both the deposit of foreign material on the interior surfaces of such tubular members, as well as inward deformation of portions thereof impede the upward flow of fiuid therethrough, which of course, is detrimental to the efiicient operation of the well.
The primary purpose in devising the present invention is to provide an apparatus as well as a method whereby it can be used advantageously and permit the rapid and efiicient removal of foreign material from such tubular members while they remain in place in a well, and concurrently with such removal of foreign material, force any inwardly deformed portions of the tubular member outwardly to the extent that they assume their initial cylindrical configuration.
Another object of the invention is to provide an apparatus for removing such foreign material of the type described and reform the deformed portions of such tubular members that is extremely simple structurally, can be fabricated from standard commercially available materials, is strong and durable, requires a minimum of maintenance attention, and can be sold or leased at a sufficiently low cost as to encourage widespread use thereof.
These and other objects and advantages of the invention will become apparent from the following description of a preferred form thereof, and from the accompanying drawing illustrating same in which:
FIGURE 1 is a combined side elevational and longitudinal cross-sectional View of the invention as it is being lowered into a tubular member from which it is desired to remove foreign material deposited on the interior surface thereof as well as to reform inwardly deformed portions thereof to their initial cylindrical configuration;
FIGURE 2 is an enlarged longitudinal cross-sectional view of the invention; and,
FIGURE 3 is a transverse cross-sectional view of'the invention taken on line 33 of FIGURE 1.
Referring now to the drawing for the general arrangement of the invention, which is generally referred to by the letter A, it will be seen that it depends from the lower end of a tubing string B, with the invention and tubing string being vertically movable within the confines of a tubular member C which may be tubing, casing, or the like. During use a coating of foreign material D forms on the interior surface of tubular member C, and in addition, portions C of member C oftentimes become deformed or indented inwardly as shown in FIGURE 1.
As may be seen in FIGURE 2, the invention A includes an elongate n'gid tubular body or barrel of substantially lesser transverse cross-sectional area than the interior cross section of tubular member C. The lower end 12 of body 10 tapers downwardly and inwardly to define a port 14 in the lower extremity thereof. A number of additional circumferentially spaced ports 16 are preferably formed in end 12, as shown in FIGURES l, 2 and 3. The upper end of body 10 is of reduced transverse cross section and preferably defined by a ring-shaped portion 18 from which a threaded nipple or boss 20 extends upwardly. Nipple 20 is threadedly engaged by a tapped collar 22, which collar in turn is threadedly engaged by the lower threaded end 24 of tubing string B.
Two or more circumferentially spaced ribs 26 project from the exterior surface of body 10. Ribs 26 (FIGURE 1) are of helical configuration, and preferably originate on the lower end 12 of the body, extending upwardly a substantial distance. Ribs 26 are of angular transverse cross section, preferably rectangular, in order that a cutting edge 26a will be defined along the length thereof. It will be apparent that ribs 26 can be either welded onto the exterior surface of body 10 or be formed as an integral part thereof.
Each of the ribs 26 has a pair of lugs 32 and 34 projecting in opposite directions from the upper end thereof, and partially encircling body 10. Lugs 32 and 34 terminate prior to reaching the ribs 26 adjoining the rib from which they originate. The pairs of lugs 32 and 34 are preferably staggered downwardly from one another on body 10 (FIGURE 1). Also in FIGURE 1 it will be seen that lugs 32 and 34 are sufficiently long that while staggered, they completely encircle body 10. The exterior longitudinal surfaces of ribs 26 and lugs 32 and 34 lie in the same plane, and are adapted to slidably contact the interior surface of tubular member C from which foreign material D is to be removed.
The method of removing foreign material from the interior surface of tubular member C and reforming inwardly deformed portions C thereof to their initial cylindrical configuration is extremely simple. The internal transverse cross section of the tubular member C from which foreign material D is to be removed is first deter-. mined, and an invention A is selected having a transverse cross section to just permit it to be slidably and rotatably movable in this tubular member. The invention A so selected is then mounted on the lower end of a tubing string B as shown in the drawing. By means (not shown) tubing string B is lowered at a desired rate into the tubular member C. Tubing string B, also by means not shown, is connected to a. source of liquid under pressure that is preferably water, although oil could be used, and the liquid is circulated downwardly through the tubing string and interior of body 10 to discharge through the ports 14 and 16.
After a column of liquid is built up inside tubular member C to the elevation at which the lower end 12 of the invention is disposed therein, the direction of liquid as it discharges from ports 14 and 16 is reversed whereby the liquid then flows upwardly through the fluid passages 30. After discharging from passages 30 the liquid flows upwardly in the annulus-shaped space 36 defined by the interior surface of tubular member C and external surface of tubing string B to the ground surface. I
During such liquid discharge, tubing string B and body 10 are concurrently lowered inside tubular member C, and as a result thereof the edges 26a of ribs 26 are brought into engagement with the foreign material D to cut, shear or otherwise dislodge it from the interior surface of the tubular member. As the foreign material is removed from the interior surface of tubular member C it is caught by the stream of liquid and carried upwardly to the ground surface thereby as it moves through the passages 30. When the liquid carrying the severed foreign material D reaches the ground surface it may be either disposed of as waste material, or the liquid and material separated by means not shown, with the separated liquid then being recycled down through the tubing string B.
A particularly important feature of the present inven- 3 tion is that it does not need to be rotated as it is lowered into tubular member C to remove foreign material therefrom. As a result, present-day conventional tubing raising and lowering equipment may be used in conjunction with the present invention without alteration thereto. If it were necessary that such raising and lowering equipment rotate the tubing string B, it would have to be altered, which would not only be expensive, but would limit the lowering of tubing string B to equipment which was so altered.
Due to non-rotation of the invention, foreign material D may be severed in strips from the interior surface of tubular member C and move upwardly relative to the invention in this form.
It will be particularly noted that each two adjoining ribs 26 cooperate with the interior surface of the tubular member C to define a first upwardly extending passage 27 through which liquid discharged from ports 14 and 16 can flow upwardly, together with foreign material scraped from the walls of the tubular member.
Each of the lugs 32 cooperates with one of the lugs 34 and the interior surface of tubular member C to define a second passage 33 that is in communication with one of the passages 27. Each second passage 33 permits liquid and scraped foreign material from one of the first passages 27 to continue moving upwardly relative to the body 10, and ultimately reach a position adjacent the upper end of tubing string B.
The lugs 32 and 34 also serve to break up such strips of foreign material into chunks as the strips are forced into pressure contact therewith. These broken chunks are then carried to the ground surface by the upwardly moving stream of liquid after they move from one of the second passages 33,
Inasmuch as lugs 32 and 34 are normally disposed relative to the longitudinal axis of body 10, they come into pressure contact with the inwardly deformed portions C to exert both outwardly and downwardly directed forces thereon sufficient to reform these deformed portions to their initial cylindrical configuration. Staggering of the pairs of lugs 32 and 34 has been found to be particularly desirable as it permits a gradually increasing force to reform the portions C. After the invention A has traversed the length of tubular member C as above described, the direction of movement of the invention and the tubing string B is reversed to draw same upwardly to the ground surface through the scraped and reformed tubular member. The term .tubular member B when used herein shall be construed to include either a single length thereof, or a number of lengths coupled together end-to-end as is common practice in working present-day oil or water wells.
It will be obvious to those skilled in the art that various changes may be made in the invention without departing from the spirit and scope thereof, and therefore the in vention is not limited by that which is shown in the drawing and described in the specification, but only as defined in the appended claims.
1. A device capable of being mounted on the lower end of a tubing string and when so mounted is adapted to be used'in removing foreign material adhering to the interior surface of a tubular member, portions of which member may have been deformed inwardly, and sequentially forming the interior surface of said tubular member to conform to the initial configuration thereof without rotation of said device or tubing string, comprising: a rigid cylindrical body having a downwardly and inwardly tapering lower end, with at least one port formed in said lower end; first means on the upper end of said body for supporting said body from the lower end of said tubing string, said means also serving to efiect communication between the interior of said body and said string; second means rigidly affixed to the outside of said body for scraping said foreign material from the interior surface of said tubular member as said body and tubing string are lowered therein, said second means together with the interior surface of said tubular member also serving to cooperatively define at least one upwardly extending first passage through which a liquid discharged downwardly through said string, body and port can flow upwardly therethrough to carry said foreign material therewith; and third means rigidly afiixed to the outside of said body and extending circumferentially thereabout for pressure contacting said deformed interior surface portions of said tubular member as said body and tubing string are lowered therethrough to force same outwardly until the interior surface thereof conforms to its initial configuration, with said third means cooperating with said interior surface of said tubular member to define a second passage in communication with said first passage through which said liquid and scraped material can flow upwardly to the upper end of said tubing string.
2. A device as defined in claim 1 wherein said third means are so positioned relative to said second means that said deformed portions are forced outwardly after said foreign material has been removed therefrom.
3. A device as defined in claim 1 wherein said second means are a plurality of helical outwardly projecting circumferentially spaced ribs, with at least two of said ribs cooperating with the exterior surface portion of said body situated therebetween and the interior surface of said tubular body to define said upwardly extending passage which is of curved configuration.
4. A device as defined in claim 1 wherein said third means are a plurality of curved lugs, with each of said lugs partially encircling said body and at least a first one of said lugs is longitudinally spaced from a second one thereof.
5. A device as defined in claim 3 wherein at least a portion of said ribs extend upwardly on the exterior surface of said body from the lower end thereof.
6. A device as defined in claim 4 wherein each of said lugs has one of the ends thereof in abutting contact with one of said ribs.
7. A deviceas defined in claim 6 wherein said lugs are situated adjacent the upper ends of said ribs.
References Cited in the file of this patent UNITED STATES PATENTS 684,363 Garbutt Oct. 8, 1901 1,010,954 Rasmussen et al. Dec. 5, 1911 1,422,762 Hatfield July 11, 1922 1,604,736 De Forest Oct. 26, 1926 1,770,207 Helmling July 8, 1930 2,218,766 Parker Oct. 22, 1940 2,627,925 Scivally Feb. 10, 1953 2,667,931 Baker Feb. 2, 1954 2,695,673 Coyle Nov. 30, 1954 2,712,853 Itwin July 12, 1955
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US684363 *||Apr 8, 1901||Oct 8, 1901||Frank A Garbutt||Well-casing swage.|
|US1010954 *||Apr 20, 1910||Dec 5, 1911||Chester Peter Adolph Rasmussen||Swage.|
|US1422762 *||Jan 12, 1921||Jul 11, 1922||Hatfield Floyd H||Casing swage|
|US1604736 *||Dec 12, 1925||Oct 26, 1926||De Foreest Fred I||Casing swage|
|US1770207 *||Sep 8, 1927||Jul 8, 1930||Helmling George A||Paraffin scraper for oil wells|
|US2218766 *||Jun 22, 1940||Oct 22, 1940||Parker Lawrence P||Pipe cutting tool|
|US2627925 *||Feb 18, 1950||Feb 10, 1953||Scivally Bernice M||Casing scraper|
|US2667931 *||Aug 1, 1949||Feb 2, 1954||Baker Oil Tools Inc||Casing scraper|
|US2695673 *||Jul 21, 1952||Nov 30, 1954||Coyle William E||Well casing scraping tool|
|US2712853 *||Aug 14, 1950||Jul 12, 1955||Stanley Irwin||Paraffin remover|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3124821 *||Nov 30, 1960||Mar 17, 1964||mathews|
|US3179168 *||Aug 9, 1962||Apr 20, 1965||Pan American Petroleum Corp||Metallic casing liner|
|US3191680 *||Mar 14, 1962||Jun 29, 1965||Pan American Petroleum Corp||Method of setting metallic liners in wells|
|US3528498 *||Apr 1, 1969||Sep 15, 1970||Wilson Ind Inc||Rotary cam casing swage|
|US3780562 *||Jul 10, 1972||Dec 25, 1973||Kinley J||Device for expanding a tubing liner|
|US4225173 *||Feb 5, 1979||Sep 30, 1980||Martinez Ruben C||Cable retrieving tool|
|US4507019 *||Feb 22, 1983||Mar 26, 1985||Expand-A-Line, Incorporated||Method and apparatus for replacing buried pipe|
|US4925344 *||Jan 3, 1989||May 15, 1990||Peres Steve U||Method and apparatus for replacing buried pipe|
|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|
|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|
|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|
|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|
|US6598678||Nov 13, 2000||Jul 29, 2003||Weatherford/Lamb, Inc.||Apparatus and methods for separating and joining tubulars in a wellbore|
|US6688400||May 14, 2002||Feb 10, 2004||Weatherford/Lamb, Inc.||Downhole sealing|
|US6702029||Dec 22, 1999||Mar 9, 2004||Weatherford/Lamb, Inc.||Tubing anchor|
|US6708769||May 4, 2001||Mar 23, 2004||Weatherford/Lamb, Inc.||Apparatus and methods for forming a lateral wellbore|
|US6732806 *||Jan 29, 2002||May 11, 2004||Weatherford/Lamb, Inc.||One trip expansion method and apparatus for use in a wellbore|
|US6742606 *||Feb 11, 2003||Jun 1, 2004||Weatherford/Lamb, Inc.||Method and apparatus for drilling and lining a wellbore|
|US6851475||Mar 14, 2003||Feb 8, 2005||Weatherford/Lamb, Inc.||Apparatus and methods for separating and joining tubulars in 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|
|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|
|US7021390||Apr 18, 2003||Apr 4, 2006||Shell Oil Company||Tubular liner for wellbore casing|
|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|
|US7048050||Oct 2, 2003||May 23, 2006||Weatherford/Lamb, Inc.||Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells|
|US7048062||Oct 1, 2002||May 23, 2006||Shell Oil Company||Method of selecting tubular members|
|US7048067||Oct 31, 2000||May 23, 2006||Shell Oil Company||Wellbore casing repair|
|US7055608||Apr 18, 2003||Jun 6, 2006||Shell Oil Company||Forming a wellbore casing while simultaneously drilling a wellbore|
|US7077213||Oct 1, 2002||Jul 18, 2006||Shell Oil Company||Expansion cone for radially expanding tubular members|
|US7086475||Oct 1, 2002||Aug 8, 2006||Shell Oil Company||Method of inserting a tubular member into a wellbore|
|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|
|US7117957||May 25, 2004||Oct 10, 2006||Weatherford/Lamb, Inc.||Methods for drilling and lining a wellbore|
|US7121337||Jun 1, 2005||Oct 17, 2006||Shell Oil Company||Apparatus for expanding a tubular member|
|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|
|US7146702||Mar 7, 2005||Dec 12, 2006||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7147053||Aug 13, 2004||Dec 12, 2006||Shell Oil Company||Wellhead|
|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|
|US7172019||Mar 7, 2005||Feb 6, 2007||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7172021||Nov 3, 2004||Feb 6, 2007||Shell Oil Company||Liner hanger with sliding sleeve valve|
|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|
|US7174964||Jul 22, 2003||Feb 13, 2007||Shell Oil Company||Wellhead with radially expanded tubulars|
|US7185710||Jun 13, 2003||Mar 6, 2007||Enventure Global Technology||Mono-diameter wellbore casing|
|US7188687||Jul 27, 2004||Mar 13, 2007||Weatherford/Lamb, Inc.||Downhole filter|
|US7195061||Jun 2, 2005||Mar 27, 2007||Shell Oil Company||Apparatus for expanding a tubular member|
|US7195064||Aug 13, 2003||Mar 27, 2007||Enventure Global Technology||Mono-diameter wellbore casing|
|US7198100||Jun 2, 2005||Apr 3, 2007||Shell Oil Company||Apparatus for expanding a tubular member|
|US7201223||Mar 1, 2005||Apr 10, 2007||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7204007||Mar 4, 2005||Apr 17, 2007||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7216701||Jun 1, 2005||May 15, 2007||Shell Oil Company||Apparatus for expanding a tubular member|
|US7231985||Sep 10, 2004||Jun 19, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7234531||Sep 19, 2002||Jun 26, 2007||Enventure Global Technology, Llc||Mono-diameter wellbore casing|
|US7240728||Sep 25, 2001||Jul 10, 2007||Shell Oil Company||Expandable tubulars with a radial passage and wall portions with different wall thicknesses|
|US7246667||Sep 27, 2004||Jul 24, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7258168||Jul 27, 2001||Aug 21, 2007||Enventure Global Technology L.L.C.||Liner hanger with slip joint sealing members and method of use|
|US7267175||Mar 17, 2005||Sep 11, 2007||Weatherford/Lamb, Inc.||Apparatus and methods for forming a lateral wellbore|
|US7270188||Nov 22, 2002||Sep 18, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7275601||Sep 28, 2004||Oct 2, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7290605||Dec 10, 2002||Nov 6, 2007||Enventure Global Technology||Seal receptacle using expandable liner hanger|
|US7299881||Sep 27, 2004||Nov 27, 2007||Shell Oil Company||Radial expansion of tubular members|
|US7308755||Mar 4, 2005||Dec 18, 2007||Shell Oil Company||Apparatus for forming a mono-diameter wellbore casing|
|US7308944||Oct 7, 2003||Dec 18, 2007||Weatherford/Lamb, Inc.||Expander tool for use in a wellbore|
|US7325602||Sep 28, 2006||Feb 5, 2008||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7350563||Aug 14, 2002||Apr 1, 2008||Enventure Global Technology, L.L.C.||System for lining a wellbore casing|
|US7350564||May 20, 2005||Apr 1, 2008||Enventure Global Technology, L.L.C.||Mono-diameter wellbore casing|
|US7357188||Feb 23, 2000||Apr 15, 2008||Shell Oil Company||Mono-diameter wellbore casing|
|US7357190||Sep 28, 2004||Apr 15, 2008||Shell Oil Company||Radial expansion of tubular members|
|US7360591||Apr 17, 2003||Apr 22, 2008||Enventure Global Technology, Llc||System for radially expanding a tubular member|
|US7363690||Mar 2, 2005||Apr 29, 2008||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7363691||Mar 3, 2005||Apr 29, 2008||Shell Oil Company||Method and apparatus for forming a mono-diameter wellbore casing|
|US7363984||May 12, 2003||Apr 29, 2008||Enventure Global Technology, Llc||System for radially expanding a tubular member|
|US7377326||Aug 18, 2003||May 27, 2008||Enventure Global Technology, L.L.C.||Magnetic impulse applied sleeve method of forming a wellbore casing|
|US7383889||Nov 12, 2002||Jun 10, 2008||Enventure Global Technology, Llc||Mono diameter wellbore casing|
|US7398832||May 5, 2003||Jul 15, 2008||Enventure Global Technology, Llc||Mono-diameter wellbore casing|
|US7404444||Aug 18, 2003||Jul 29, 2008||Enventure Global Technology||Protective sleeve for expandable tubulars|
|US7410000||May 20, 2005||Aug 12, 2008||Enventure Global Technology, Llc.||Mono-diameter wellbore casing|
|US7419009||Mar 18, 2005||Sep 2, 2008||Shell Oil Company||Apparatus for radially expanding and plastically deforming a tubular member|
|US7424918||Aug 18, 2003||Sep 16, 2008||Enventure Global Technology, L.L.C.||Interposed joint sealing layer method of forming a wellbore casing|
|US7434618||Jun 1, 2005||Oct 14, 2008||Shell Oil Company||Apparatus for expanding a tubular member|
|US7438133||Feb 26, 2004||Oct 21, 2008||Enventure Global Technology, Llc||Apparatus and method for radially expanding and plastically deforming a tubular member|
|US7503393||Jan 26, 2004||Mar 17, 2009||Enventure Global Technology, Inc.||Lubrication system for radially expanding tubular members|
|US7513313||Sep 22, 2003||Apr 7, 2009||Enventure Global Technology, Llc||Bottom plug for forming a mono diameter wellbore casing|
|US7516790||Jan 9, 2003||Apr 14, 2009||Enventure Global Technology, Llc||Mono-diameter wellbore casing|
|US7552776||Oct 13, 2005||Jun 30, 2009||Enventure Global Technology, Llc||Anchor hangers|
|US7556092||Feb 15, 2002||Jul 7, 2009||Enventure Global Technology, Llc||Flow control system for an apparatus for radially expanding tubular members|
|US7559365||Nov 12, 2002||Jul 14, 2009||Enventure Global Technology, Llc||Collapsible expansion cone|
|US7571774||Aug 18, 2003||Aug 11, 2009||Eventure Global Technology||Self-lubricating expansion mandrel for expandable tubular|
|US7603758||Feb 14, 2001||Oct 20, 2009||Shell Oil Company||Method of coupling a tubular member|
|US7665532||Oct 19, 2007||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|
|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|
|US7819185||Aug 12, 2005||Oct 26, 2010||Enventure Global Technology, Llc||Expandable tubular|
|US7886831||Aug 6, 2007||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|
|US20030066655 *||Feb 20, 2002||Apr 10, 2003||Shell Oil Co.||Apparatus for coupling a tubular member to a preexisting structure|
|US20030094277 *||Oct 1, 2002||May 22, 2003||Shell Oil Co.||Expansion cone for radially expanding tubular members|
|US20030098162 *||Oct 1, 2002||May 29, 2003||Shell Oil Company||Method of inserting a tubular member into a wellbore|
|US20030107217 *||Dec 30, 2002||Jun 12, 2003||Shell Oil Co.||Sealant for expandable connection|
|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|
|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|
|US20040065445 *||Jun 10, 2003||Apr 8, 2004||Abercrombie Simpson Neil Andrew||Expanding tubing|
|US20040069499 *||Mar 31, 2003||Apr 15, 2004||Cook Robert Lance||Mono-diameter wellbore casing|
|US20040079528 *||Sep 11, 2003||Apr 29, 2004||Weatherford/Lamb, Inc.||Tubing anchor|
|US20040118574 *||Jun 13, 2003||Jun 24, 2004||Cook Robert Lance||Mono-diameter wellbore casing|
|US20040123988 *||Jul 22, 2003||Jul 1, 2004||Shell Oil Co.||Wellhead|
|US20040131812 *||Oct 24, 2003||Jul 8, 2004||Metcalfe Paul David||Downhole filter|
|US20040149454 *||Dec 30, 2003||Aug 5, 2004||Weatherford/Lamb, Inc.||Downhole sealing|
|US20040159466 *||Feb 19, 2004||Aug 19, 2004||Weatherford/Lamb, Inc.||Apparatus and methods for forming a lateral wellbore|
|US20040216878 *||May 25, 2004||Nov 4, 2004||Weatherford/Lamb, Inc.||Method and apparatus for drilling and lining a wellbore|
|US20050072569 *||Oct 7, 2003||Apr 7, 2005||Gary Johnston||Expander tool for use in a wellbore|
|US20050077046 *||Nov 29, 2004||Apr 14, 2005||Weatherford/Lamb, Inc.||Apparatus and methods for separating and joining tubulars in a wellbore|
|US20050161222 *||Mar 17, 2005||Jul 28, 2005||Haugen David M.||Apparatus and methods for forming a lateral wellbore|
|US20050252662 *||Jul 18, 2005||Nov 17, 2005||Weatherford/Lamb, Inc.||Apparatus and method for expanding a tubular|
|US20060137877 *||Sep 22, 2003||Jun 29, 2006||Watson Brock W||Cutter for wellbore casing|
|WO2004026073A2 *||Aug 18, 2003||Apr 1, 2004||Enventure Global Technlogy||Rotating mandrel for expandable tubular casing|
|WO2004026073A3 *||Aug 18, 2003||Jun 17, 2004||Enventure Global Technlogy||Rotating mandrel for expandable tubular casing|
|U.S. Classification||166/55, 72/479, 166/173|
|International Classification||E21B37/02, E21B37/00|
|Oct 19, 1988||AS||Assignment|
Owner name: FIDELCOR BUSINESS CREDIT CORPORATION, 1925 CENTURY
Free format text: SECURITY INTEREST;ASSIGNOR:MIDWAY FISHING TOOL COMPANY;REEL/FRAME:004994/0755
Effective date: 19880224
|Sep 19, 1988||AS||Assignment|
Owner name: DOMTAR INC., 395 DE MAISONNEUVE BOULEVARD WEST, MO
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:JOHNSTON, ALLAN;MASON, DEAN A.;REEL/FRAME:004947/0336;SIGNING DATES FROM 19880902 TO 19880913
Owner name: DOMTAR INC., A COMPANY OF CANADA,CANADA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHNSTON, ALLAN;MASON, DEAN A.;SIGNED BETWEEN 19880902 AND 19880913;REEL/FRAME:4947/336
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHNSTON, ALLAN;MASON, DEAN A.;SIGNING DATES FROM 19880902 TO 19880913;REEL/FRAME:004947/0336
Owner name: DOMTAR INC., A COMPANY OF CANADA, CANADA