Configurable bridge plugs and methods for using same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-033/129
E21B-033/134
E21B-034/06
E21B-034/14
출원번호
US-0194820
(2011-07-29)
등록번호
US-9109428
(2015-08-18)
발명자
/ 주소
Frazier, W. Lynn
출원인 / 주소
Frazier, W. Lynn
대리인 / 주소
Edmonds & Nolte, P.C.
인용정보
피인용 횟수 :
1인용 특허 :
218
초록▼
An insert for a downhole plug for use in a wellbore is provided, comprising a body having a bore at least partially formed therethrough, wherein one or more threads are disposed on an outer surface of the body for engaging the plug; and at least one interface is disposed on an end of the body for co
An insert for a downhole plug for use in a wellbore is provided, comprising a body having a bore at least partially formed therethrough, wherein one or more threads are disposed on an outer surface of the body for engaging the plug; and at least one interface is disposed on an end of the body for connecting to a tool to screw the insert into at least a portion of the plug.
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 located within the mandrel for engaging a setting tool that ent
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 located within the mandrel for engaging a setting tool that enters the bore of the mandrel through an upper end of the mandrel;an insert at least partially within the bore of the mandrel beneath the shear element and 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;at least one circumferential groove formed in 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,wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool. 2. 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. 3. The plug of claim 1, wherein the shear element is integral with the mandrel or the shear element is a separate component. 4. The plug of claim 1, wherein the bore of the body is formed completely therethrough to allow fluid flow in both axial directions through the insert. 5. The plug of claim 1, 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 1, further comprising at least one interface on an end of the body for securing the insert into the mandrel, wherein the interface comprises a profile for engaging an installation tool, and the profile is selected from the group consisting of hexagonal, slotted, notched, cross-head, and square. 7. The plug of claim 1, wherein the mandrel is made of one or more composite materials. 8. The plug of claim 1, further comprising 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. 9. The plug of claim 1, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 10. 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; anda shear element located within the mandrel for engaging a setting tool that enters the bore of the mandrel through an upper end of the mandrel;an insert at least partially within the bore of the mandrel beneath the shear element and 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;at least one circumferential groove formed in 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,wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool. 11. The plug of claim 10, 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. 12. The plug of claim 10, wherein the shear element is integral with the mandrel. 13. The plug of claim 10, wherein the ball stop is selected from the group consisting of a plate, an annular cover, a ring, a bar, a cage, and a pin. 14. The plug of claim 10, further comprising at least one interface on an end of the body for securing the insert into the mandrel, wherein the interface comprises a profile for engaging a tool, and the profile is selected from the group consisting of hexagonal, slotted, notched, cross-head, and square. 15. The plug of claim 10, wherein the mandrel is made of one or more composite materials. 16. The plug of claim 10, further comprising 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. 17. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;a shear element located within the mandrel for engaging a setting tool that enters the bore of the mandrel through an upper end of the mandrel;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 beneath the shear element and 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;at least one circumferential groove formed in 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. 18. The plug of claim 17, wherein the insert is solid and prevents fluid flow through the bore of the mandrel in both axial directions. 19. The plug of claim 17, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 20. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough;a shear element located within the mandrel for engaging a setting tool that enters the bore of the mandrel through an upper end of the mandrel;at least one sealing element about the mandrel;at least one slip about the mandrel;at least one conical member about the mandrel;an insert at least partially within the bore of the mandrel beneath the shear element and 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;at least one circumferential groove formed in 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,wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool. 21. The plug of claim 20, 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. 22. The plug of claim 20, wherein the shear element is integral with the mandrel or a separate component that is adapted to engage the mandrel. 23. The plug of claim 20, wherein the mandrel is made of one or more composite materials. 24. The plug of claim 20, 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. 25. The plug of claim 20, wherein the setting tool comprises an adapter rod, an outer cylinder, or both. 26. The plug of claim 20, wherein the insert is blocked thereby preventing fluid flow through the bore of the mandrel in both axial directions. 27. The plug of claim 20, wherein the at least one shear element comprises one or more shear threads, shear screws, shear pins, or combinations thereof.
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