Decomposable impediments for downhole tools and methods for using same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-033/12
E21B-033/129
E21B-033/134
E21B-034/06
E21B-034/14
출원번호
US-0893205
(2013-05-13)
등록번호
US-9127527
(2015-09-08)
발명자
/ 주소
Frazier, W. Lynn
출원인 / 주소
Frazier, W. Lynn
대리인 / 주소
Edmonds & Nolte, P.C.
인용정보
피인용 횟수 :
3인용 특허 :
217
초록▼
A plug for isolating a wellbore. The plug can include a mandrel having a bore formed therethrough, at least one sealing element disposed about the mandrel, at least one slip disposed about the mandrel, at least one conical member disposed about the mandrel, and an insert disposed at least partially
A plug for isolating a wellbore. The plug can include a mandrel having a bore formed therethrough, at least one sealing element disposed about the mandrel, at least one slip disposed about the mandrel, at least one conical member disposed about the mandrel, and an insert disposed at least partially within the bore of the mandrel. The insert can include a body, at least one circumferential groove disposed on an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal, and at least one interface disposed on an end of the body for securing the insert into the mandrel. The body can also have a bore formed only partially therethrough or a bore formed completely therethrough with the body being adapted to receive an impediment that restricts fluid flow in at least one direction through the body. At least one of the body and the impediment can include one or more decomposable materials.
대표청구항▼
1. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;a shear element for engaging a setting tool, wherein the shear element releases
1. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;a shear element for engaging a setting tool, wherein the shear element releases the setting tool from the plug when exposed to a predetermined force;an insert at least partially within the bore between an upper end of the mandrel and the sealing element, the insert comprising: a body having a bore formed completely therethrough and adapted to receive an impediment that restricts fluid flow in at least one direction through the body or a bore formed only partially therethrough, and wherein at least one of the body and the impediment comprises one or more decomposable materials;at least one circumferential groove on an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal; andone or more threads on the outer surface of the body for securing the insert into the mandrel. 2. The plug of claim 1, wherein the decomposable material comprises one or more aliphatic polyesters. 3. The plug of claim 2, wherein the one or more aliphatic polyesters is selected from the group consisting of: polyglycolic acid, polylactic acid, and a copolymer containing a repeating unit derived from a reaction product of glycolic acid and lactic acid. 4. The plug of claim 2, wherein the aliphatic polyester comprises polyglycolic acid. 5. The plug of claim 4, wherein the bore of the body is formed partially therethrough to block fluid flow in both axial directions through the insert. 6. The plug of claim 2, wherein the aliphatic polyester comprises a homopolymer containing a repeating unit derived from glycolic acid in an amount of at least 50 wt %, based on the total weight of the aliphatic polyester. 7. The plug of claim 2, wherein the aliphatic polyester comprises a homopolymer containing a repeating unit derived from lactic acid in an amount of at least 50 wt %, based on the total weight of the aliphatic polyester. 8. The plug of claim 2, wherein the aliphatic polyester comprises a copolymer containing a repeating unit derived from a reaction product of glycolic acid and lactic acid in an amount of at least 50 wt %, based on the total weight of the aliphatic polyester. 9. The plug of claim 1, wherein the decomposable material at least partially decomposes, degrades, degenerates, melts, combusts, softens, decays, breaks up, breaks down, dissolves, disintegrates, decomposes, breaks, or dissociates when exposed to one or more predetermined triggers, and wherein the predetermined trigger comprises heating the decomposable material to a temperature of about 200° F. or more. 10. The plug of claim 1, wherein the decomposable material at least partially decomposes, degrades, degenerates, melts, combusts, softens, decays, breaks up, breaks down, dissolves, disintegrates, decomposes, breaks, or dissociates when exposed to one or more predetermined triggers, and wherein the predetermined trigger comprises contacting the decomposable material with water. 11. The plug of claim 1, wherein the decomposable material at least partially decomposes, degrades, degenerates, melts, combusts, softens, decays, breaks up, breaks down, dissolves, disintegrates, decomposes, breaks, or dissociates when exposed to one or more predetermined triggers, and wherein the predetermined trigger comprises contacting the decomposable material with one or more acids, one or more bases, or one or more neutral compounds. 12. The plug of claim 1, wherein the one or more threads on the outer surface of the body are adapted to engage one or more threads on an inner surface of the mandrel. 13. The plug of claim 12, wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool. 14. The plug of claim 13, wherein the bore of the body is formed completely therethrough. 15. The plug of claim 13, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 16. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;a shear element for engaging a setting tool, wherein the shear element releases the setting tool from the plug when exposed to a predetermined force; andan insert at least partially within the bore of the mandrel between the shear element and the sealing element, the insert comprising: a body having a bore formed completely therethrough, wherein a shoulder is formed on an inner surface of the body;a ball within the bore of the body, wherein the ball is adapted to block fluid flow in at least one direction through the bore of the body and the bore of the mandrel when the ball is in contact with the shoulder;a ball stop within the bore of the body, wherein the ball is between the shoulder and the ball stop, and wherein the ball, the ball stop, or both comprises a decomposable material;at least one circumferential groove on an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal; andone or more threads on the outer surface of the body for securing the insert into the mandrel. 17. The plug of claim 16, wherein the decomposable material comprises one or more aliphatic polyesters. 18. The plug of claim 17, wherein the one or more aliphatic polyesters is selected from the group consisting of: polyglycolic acid, polylactic acid, and a copolymer containing a repeating unit derived from a reaction product of glycolic acid and lactic acid. 19. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;a shear element for engaging a setting tool, wherein the shear element releases the setting tool from the plug when exposed to a predetermined force;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;at least one anti-rotation feature on a first end of the plug, a second end of the plug, or both ends of the plug; andan insert at least partially within the bore of the mandrel between the shear element and the sealing element, the insert comprising: a body having a bore formed completely therethrough or a bore formed only partially therethrough, and wherein the body comprises one or more decomposable materials;at least one circumferential groove on an outer surface of the body;an elastomeric seal within the at least one circumferential groove; andone or more threads on the outer surface of the body that are adapted to engage one or more threads on an inner surface of the mandrel;wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool. 20. The plug of claim 19, wherein the decomposable material comprises one or more polyglycolic acids, polylactic acids, or any combination thereof. 21. The plug of claim 20, wherein the decomposable material comprises a homopolymer containing a repeating unit derived from glycolic acid in an amount of at least 50 wt %, based on the total weight of the aliphatic polyester. 22. The plug of claim 19, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 23. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;at least one shear element proximate an upper portion of the mandrel for engaging a setting tool, wherein the shear element releases the setting tool from the plug when exposed to a predetermined force;an insert at least partially within the bore between the upper portion of the mandrel and the sealing element, the insert comprising: a body having a bore formed at least partially therethrough, wherein the body comprises one or more decomposable materials;at least one circumferential groove on an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal; andone or more threads on the outer surface of the body for securing the insert into the mandrel. 24. The plug of claim 23, wherein the one or more threads on the outer surface of the body are adapted to engage one or more threads on an inner surface of the mandrel. 25. The plug of claim 23, wherein the insert remains at least partially within the bore of the mandrel after the at least one shear element shears and releases the setting tool. 26. The plug of claim 23, wherein the at least one shear element is integral with the mandrel or a separate component that is adapted to engage the mandrel. 27. The plug of claim 23, wherein the mandrel is made of one or more composite materials. 28. The plug of claim 23, further comprising at least one anti-rotation feature on an upper end of the plug, a lower end of the plug, or both ends of the plug. 29. The plug of claim 23, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 30. The plug of claim 23, wherein the insert is blocked thereby preventing fluid flow through the bore of the mandrel in both axial directions. 31. The plug of claim 23, wherein the at least one shear element comprises one or more shear threads, shear screws, shear pins, or combinations thereof.
Sato, Hiroyuki; Yamane, Kazuyuki; Hokari, Yuki; Kobayashi, Fuminori; Ono, Toshihiko, Aromatic polyester resin composition and process for production thereof.
Gardner Bradley M. ; Smith Ann M. ; Hanson Richard W. ; Hodges Richard T., Device and method for producing a containment barrier underneath and around in-situ buried waste.
Hushbeck Donald F. (Duncan OK) Yuan Yusheng (Houston TX) Davison Douglas W. (Pearland TX), Downhole tool apparatus and method of limiting packer element extrusion.
Streich Steven G. (Duncan OK) Hushbeck Donald F. (Duncan OK) Berscheidt Kevin T. (Duncan OK) Jacobi Rick D. (Duncan OK), Downhole tool apparatus with non-metallic components and methods of drilling thereof.
Streich Steven G. (Duncan OK) Hushbeck Donald F. (Duncan OK) Berscheidt Kevin T. (Duncan OK) Jacobi Rick D. (Duncan OK), Downhole tool apparatus with non-metallic components and methods of drilling thereof.
Branch Alton L. (Comanche OK) Smith Donald R. (Wilson OK) Berscheidt Kevin T. (Duncan OK), Downhole tool apparatus with non-metallic packer element retaining shoes.
Deniau, Alain; Mathieu, Fabrice, Drum for an excavator that can be used in particular for the production of vertical trenches in hard or very hard soils.
Cook, Robert Lance; Brisco, David Paul; Stewart, R. Bruce; Ring, Lev; Haut, Richard Carl; Mack, Robert Donald; Duell, Alan B.; Filippov, Andrei Gregory, Expandable connector.
Kawakami Yukichika,JPX ; Sato Nobuo,JPX ; Hoshino Mitsuru,JPX ; Kouyama Toshitaka,JPX ; Shiiki Zenya,JPX, Injection-molded product of polyglycolic acid and production process thereof.
Vargus Gregory W. ; Hushbeck Donald F. ; Berscheidt Kevin T. ; Winslow Donny W. ; Smith Donald R. ; Hawkins Thomas W., Low pressure, high temperature composite bridge plug.
Ogawa, Tomoyuki; Kikuchi, Michio, Method for purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid.
Kawakami Yukichika,JPX ; Sato Nobuo,JPX ; Hoshino Mitsuru,JPX ; Kouyama Toshitaka,JPX ; Shiiki Zenya,JPX, Oriented polyglycolic acid film and production process thereof.
Shiiki Zenya (Fukushima-ken JPX) Kawakami Yukichika (Fukushima-ken JPX), Poly(ethylene oxalate), product formed of molded therefrom and production process of poly(ethylene oxalate).
Ogawa, Tomoyuki; Hoshi, Tomohiro; Kushida, Tsutomu; Otawara, Kentaro, Process for purifying hydroxycarboxylic acid, process for producing cyclic ester, and process for producing polyhydroxycarboxylic acid.
Yamane, Kazuyuki; Kawakami, Yukichika; Hoshi, Hajime; Sunagawa, Kazuhiko, Process for the preparation of cyclic esters and method for purification of the same.
Kawakami Yukichika,JPX ; Sato Nobuo,JPX ; Hoshino Mitsuru,JPX ; Kouyama Toshitaka,JPX ; Shiiki Zenya,JPX, Production process for injection-molded product of polyglycolic acid.
Echols ; III Ralph H. (Carrollton TX) Pearce Joseph L. (Dallas TX) Patterson Daniel L. (Brunei Darussalam MYX), System containing expendible isolation valve with frangible sealing member, seat arrangement and method for use.
Gambertoglio Louis M. (195 S. Deerfoot The Woodlands TX 77380) Loughlin Michael J. (2523 Droxford Houston TX 77008) West ; Jr. Louis E. (14810 Tilley St. Houston TX 77084), Valving system for hurricane plugs.
Mueller Mark D. (Santa Maria CA) Jones Frank L. (Batikpapan CA) Quintana Julio M. (Bakersfield CA) Ruddy Kenneth E. (Houston TX) Mims Michael G. (Bakersfield CA), Well casing flotation device and method.
Crow Robert W. (Irving TX) Gano John C. (Carrollton TX) Le Nam V. (Lewisville TX) Longbottom James R. (Whitesboro TX) Hagen Karluf (Stavanger NOX), Well completion system with flapper control valve.
McKeachnie,W. John; McKeachnie,Michael; Williamson,Scott; Turley,Rocky A., Wellbore tool with disintegratable components and method of controlling flow.
Okura, Masayuki; Takahashi, Takeo; Sato, Hiroyuki, Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.