IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0472128
(2012-05-15)
|
등록번호 |
US-8839874
(2014-09-23)
|
발명자
/ 주소 |
- Bishop, David S.
- Ruffo, Antonio C.
- Lehr, Douglas J.
|
출원인 / 주소 |
- Baker Hughes Incorporated
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
98 |
초록
▼
Downhole tool packing element systems comprise a sealing element having a support system. The support system can include one or more of a first spacer ring, a second spacer ring, a third spacer ring, a mesh ring, and one or more petal rings. One or more of these components can be disposed at one or
Downhole tool packing element systems comprise a sealing element having a support system. The support system can include one or more of a first spacer ring, a second spacer ring, a third spacer ring, a mesh ring, and one or more petal rings. One or more of these components can be disposed at one or both of the upper end and/or lower end of the sealing element. When compressed, the sealing element is moved radially outward to engage an inner wall surface of a wellbore due to compressive forces of the one or more spacer ring(s), mesh ring, and/or petal ring(s). The lower end of one or more of the mesh ring(s) and/or petal ring(s) rotate outwardly toward the casing and engage the casing to facilitate creation of the seal.
대표청구항
▼
1. A packing element system for a downhole tool comprising: a mandrel having a mandrel outer wall surface;a rigid upper supporting member operatively associated with the mandrel outer wall surface;a rigid lower supporting member operatively associated with the mandrel below the upper supporting memb
1. A packing element system for a downhole tool comprising: a mandrel having a mandrel outer wall surface;a rigid upper supporting member operatively associated with the mandrel outer wall surface;a rigid lower supporting member operatively associated with the mandrel below the upper supporting member;a sealing element operatively associated with the mandrel outer wall surface between the upper supporting member and the lower supporting member, the sealing element having a sealing element upper end, a sealing element lower end, a sealing element outer wall surface, and a sealing element inner wall surface;a first upper spacer ring operatively associated with the mandrel outer wall surface adjacent to and above the upper end of the sealing element;a second upper spacer ring operatively associated with the mandrel outer wall surface adjacent to and above the first upper spacer ring, the second upper spacer ring having a second upper spacer ring inner wall surface, a second upper spacer ring outer wall surface, a second upper spacer ring upper end, and a second upper spacer ring lower end, a first portion of the second upper spacer ring inner wall surface being operatively associated with the mandrel outer wall surface, anda second portion of the second upper spacer ring inner wall surface and the mandrel outer wall surface defining a first upper cavity;a third upper spacer ring operatively associated with the mandrel outer wall surface, the third upper spacer ring being disposed within the first upper cavity;an upper mesh ring partially disposed on the second upper spacer ring outer wall surface and partially disposed on the sealing element outer wall surface, the upper mesh ring having an upper mesh ring upper end having an upper mesh ring upper end surface defining an upper mesh ring upper end opening having an upper mesh ring upper end opening diameter;an upper mesh ring lower end, andan upper mesh ring side wall surface, the upper mesh ring side wall surface connecting the upper mesh ring upper end with the upper mesh ring lower end and defining an upper mesh ring lower opening having an upper mesh ring lower opening diameter, the upper mesh ring lower opening diameter being greater than the upper mesh ring upper opening diameter; anda first upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the upper mesh ring side wall surface, the upper petal ring having a first upper petal ring upper end surface defining a first upper petal ring upper end opening having a first upper petal ring upper end opening diameter,a first upper petal ring lower end, anda first upper petal ring side wall surface, the first upper petal ring side wall surface connecting the first upper petal ring upper end with the first upper petal ring lower end and defining a first upper petal ring lower opening having a first upper petal ring lower opening diameter, the first upper petal ring lower opening diameter being greater than the first upper petal ring upper opening diameter, and the first upper petal ring side wall surface having at least one first upper petal side wall slot disposed therein. 2. The packing element system of claim 1, further comprising: a second upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the first upper petal ring side wall surface, the second upper petal ring having a second upper petal ring upper end having a second upper petal ring upper end surface defining a second upper petal ring upper end opening having a second upper petal ring upper end opening diameter,a second upper petal ring lower end, anda second upper petal ring side wall surface, the second upper petal ring side wall surface connecting the second upper petal upper ring end with the second upper petal ring lower end and defining a second upper petal ring lower opening having a second upper petal ring lower opening diameter, the second upper petal ring lower opening diameter being greater than the second upper petal ring upper opening diameter, and the second upper petal ring side wall surface having at least one second upper petal side wall slot disposed therein. 3. The packing element system of claim 2, further comprising: a third upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the second upper petal ring side wall surface, the third upper petal ring having a third upper petal ring upper end having a third upper petal ring upper end surface defining a third upper petal ring upper end opening having a third upper petal ring upper end opening diameter,a third upper petal ring lower end, anda third upper petal ring side wall surface, the third upper petal ring side wall surface connecting the third upper petal upper ring end with the third upper petal ring lower end and defining a third upper petal ring lower opening having a third upper petal ring lower opening diameter, the third upper petal ring lower opening diameter being greater than the third upper petal ring upper opening diameter, and the third upper petal ring side wall surface having at least one third petal side wall slot disposed therein. 4. The packing element system of claim 3, further comprising: a fourth upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the third upper petal ring side wall surface, the fourth upper petal ring having a fourth upper petal ring upper end having a fourth upper petal ring upper end surface defining a fourth upper petal ring upper end opening having a fourth upper petal ring upper end opening diameter,a fourth upper petal ring lower end, anda fourth upper petal ring side wall surface, the fourth upper petal ring side wall surface connecting the fourth upper petal upper ring end with the fourth upper petal ring lower end and defining a fourth upper petal ring lower opening having a fourth upper petal ring lower opening diameter, the fourth upper petal ring lower opening diameter being greater than the fourth upper petal ring upper opening diameter, and the fourth upper petal ring side wall surface having at least one fourth upper petal side wall slot disposed therein. 5. The packing element system of claim 4, wherein the second upper petal ring, the third upper petal ring, and the fourth upper petal ring are disposed relative to one another wherein a portion of the third upper petal ring side wall surface is not covered by the fourth upper petal ring side wall surface, anda portion of the second upper petal ring side wall surface is not covered by the third upper petal ring side wall surface. 6. The packing element system of claim 4, wherein the one or more slots of the first upper petal ring are indexed approximately 22.5 degrees relative to the one or more slots of the second upper petal ring. 7. The packing element system of claim 1, wherein the upper mesh ring and the first upper petal ring are disposed relative to each other wherein a portion of the upper mesh ring side wall surface is not covered by the first upper petal ring. 8. The packing element system of claim 1, further comprising: a first lower spacer ring disposed on the mandrel outer wall surface adjacent to and below the lower end of the sealing element;a second lower spacer ring operatively associated with the mandrel outer wall surface adjacent to and below the first lower spacer ring, the second lower spacer ring having a second lower spacer ring inner wall surface, a second lower spacer ring outer wall surface, a second lower spacer ring upper end, and a second lower spacer ring lower end, a first portion of the second lower spacer ring inner wall surface being operatively associated with the mandrel outer wall surface, anda second portion of the second lower spacer ring inner wall surface and the mandrel outer wall surface defining a first lower cavity;a third lower spacer ring disposed on the mandrel outer wall surface, the third lower spacer ring being disposed within the first lower cavity;a lower mesh ring partially disposed on the first lower spacer ring outer wall surface and partially disposed on the sealing element outer wall surface, the lower mesh ring having a lower mesh ring upper end having a lower mesh ring upper end surface defining a lower mesh ring upper end opening having a lower mesh ring upper end opening diameter,a lower mesh ring lower end, anda lower mesh ring side wall surface, the lower mesh ring side wall surface connecting the lower mesh upper ring upper end with the lower mesh ring lower end and defining a lower mesh ring lower opening having a lower mesh ring lower opening diameter, the lower mesh ring lower opening diameter being greater than the lower mesh ring upper opening diameter; anda first lower petal ring partially disposed on the mandrel outer wall surface and partially disposed on the lower mesh ring side wall surface, the first lower petal ring having a first lower petal ring upper end having a first lower petal ring upper end surface defining a first lower petal ring upper end opening having a first lower petal ring upper end opening diameter,a first lower petal ring lower end, anda first lower petal ring side wall surface, the first lower petal ring side wall surface connecting the first lower petal upper ring end with the first lower petal ring lower end and defining a first lower petal ring lower opening having a first lower petal ring lower opening diameter, the first lower petal ring lower opening diameter being greater than the first lower petal ring upper opening diameter, and the first lower petal ring side wall surface having at least one first lower petal side wall slot disposed therein. 9. The packing element system of claim 8, wherein the upper mesh ring upper end surface is disposed substantially perpendicular to a longitudinal axis of the mandrel. 10. The packing element system of claim 9, wherein each of the first upper petal ring upper end surface, the second upper petal ring upper end surface, the third upper petal ring upper end surface, and the fourth upper petal ring upper end surface are disposed substantially perpendicular to a longitudinal axis of the mandrel. 11. The packing element system of claim 10, wherein the lower mesh ring upper end surface is disposed substantially perpendicular to a longitudinal axis of the mandrel. 12. The packing element system of claim 11, wherein each of the first lower petal ring upper end surface, the second lower petal ring upper end surface, the third lower petal ring upper end surface, and the fourth lower petal ring upper end surface are disposed substantially perpendicular to a longitudinal axis of the mandrel. 13. The packing element system of claim 8, further comprising: a second upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the first upper petal ring side wall surface, the second upper petal ring having a second upper petal ring upper end having a second upper petal ring upper end surface defining a second upper petal ring upper end opening having a second upper petal ring upper end opening diameter,a second upper petal ring lower end, anda second upper petal ring side wall surface, the second upper petal ring side wall surface connecting the second upper petal upper ring end with the second upper petal ring lower end and defining a second upper petal ring lower opening having a second upper petal ring lower opening diameter, the second upper petal ring lower opening diameter being greater than the second upper petal ring upper opening diameter, and the second upper petal ring side wall surface having at least one second upper petal side wall slot disposed therein; anda second lower petal ring partially disposed on the mandrel outer wall surface and partially disposed on the first lower petal ring side wall surface, the second lower petal ring having a second lower petal ring upper end having a second lower petal ring upper end surface defining a second lower petal ring upper end opening having a second lower petal ring upper end opening diameter,a second lower petal ring lower end, anda second lower petal ring side wall surface, the second lower petal ring side wall surface connecting the second upper petal lower ring end with the second lower petal ring lower end and defining a second lower petal ring lower opening having a second lower petal ring lower opening diameter, the second lower petal ring lower opening diameter being greater than the second lower petal ring upper opening diameter, and the second lower petal ring side wall surface having at least one second lower petal side wall slot disposed therein. 14. The packing element system of claim 13, further comprising: a third upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the second upper petal ring side wall surface, the third upper petal ring having a third upper petal ring upper end having a third upper petal ring upper end surface defining a third upper petal ring upper end opening having a third upper petal ring upper end opening diameter,a third upper petal ring lower end, anda third upper petal ring side wall surface, the third upper petal ring side wall surface connecting the third upper petal upper ring end with the third upper petal ring lower end and defining a third upper petal ring lower opening having a third upper petal ring lower opening diameter, the third upper petal ring lower opening diameter being greater than the third upper petal ring upper opening diameter, and the third upper petal ring side wall surface having at least one third upper petal side wall slot disposed therein; anda third lower petal ring partially disposed on the mandrel outer wall surface and partially disposed on the second lower petal ring side wall surface, the third lower petal ring having a third lower petal ring upper end having a third lower petal ring upper end surface defining a third lower petal ring upper end opening having a third lower petal ring upper opening diameter,a third lower petal ring lower end, anda third lower petal ring side wall surface, the third lower petal ring side wall surface connecting the third lower petal upper ring end with the third lower petal ring lower end and defining a third lower petal ring lower opening having a third lower petal ring lower opening diameter, the third lower petal ring lower opening diameter being greater than the lower upper petal ring upper opening diameter, and the third lower petal ring side wall surface having at least one third lower petal side wall slot disposed therein. 15. The packing element system of claim 14, further comprising: a fourth upper petal ring partially disposed on the mandrel outer wall surface and partially disposed on the third upper petal ring side wall surface, the fourth upper petal ring having a fourth upper petal ring upper end having a fourth upper petal ring upper end surface defining a fourth upper petal ring upper end opening having a fourth upper petal ring upper end opening diameter,a fourth upper petal ring lower end, anda fourth upper petal ring side wall surface, the fourth upper petal ring side wall surface connecting the fourth upper petal ring upper ring end with the fourth upper petal ring lower end and defining a fourth upper petal ring lower opening having a fourth upper petal ring lower opening diameter, the fourth upper petal ring lower opening diameter being greater than the fourth upper petal ring upper opening diameter, and the fourth upper petal ring side wall surface having at least one fourth upper petal side wall slot disposed therein; anda fourth lower petal ring partially disposed on the mandrel outer wall surface and partially disposed on the third lower petal ring side wall surface, the fourth upper petal ring having a fourth lower petal ring upper end having a fourth lower petal ring upper end surface defining a fourth lower petal ring upper end opening having a fourth lower petal ring upper end opening diameter,a fourth lower petal ring lower end, anda fourth lower petal ring side wall surface, the fourth lower petal ring side wall surface connecting the fourth lower petal upper ring end with the fourth lower petal ring lower end and defining a fourth lower petal ring lower opening having a fourth lower petal ring lower opening diameter, the fourth lower petal ring lower opening diameter being greater than the fourth lower petal ring upper opening diameter, and the fourth lower petal ring side wall surface having at least one fourth lower petal side wall slot disposed therein. 16. A packing element system for a downhole tool comprising: a mandrel having a mandrel outer wall surface;a rigid upper supporting member operatively associated with the mandrel outer wall surface;a rigid lower supporting member operatively associated with the mandrel below the upper supporting member;a sealing element operatively associated with the mandrel outer wall surface between the upper supporting member and the lower supporting member;an upper mesh ring comprising an upper mesh ring side wall downwardly flared for receiving an upper end portion of the sealing element within the upper mesh ring;a lower mesh ring comprising a lower mesh ring side wall upwardly flared for receiving a lower end portion of the sealing element within the lower mesh ring;at least one upper petal ring having an upper petal ring side wall and at least one upper petal ring slot, the upper petal ring side wall being downwardly flared for receiving a portion of the upper mesh ring;at least one lower petal ring having a lower petal ring side wall and at least one lower petal ring slot, the lower petal ring side wall being upwardly flared for receiving a portion of the lower mesh ring;a first upper spacing ring disposed on the mandrel outer wall surface between the upper portion of the sealing element and the upper mesh ring;a second upper spacer ring disposed on the mandrel outer wall surface between the first upper spacer ring and the upper mesh ring, the second upper spacer ring comprising a second upper spacer ring inner wall surface, the second upper spacer ring inner wall surface and the mandrel outer wall surface defining an upper cavity;a third upper spacer ring disposed on the mandrel outer wall surface, the third upper spacer ring being disposed within the upper cavity;a first lower spacer ring disposed on the mandrel outer wall surface between the lower portion of the sealing element and the lower mesh ring;a second lower spacer ring disposed on the mandrel outer wall surface between the first lower spacer ring and the lower mesh ring, the second lower spacer ring comprising a second lower spacer ring inner wall surface, the second lower spacer ring inner wall surface and the mandrel outer wall surface defining a lower cavity; anda third lower spacer ring disposed on the mandrel outer wall surface, the third lower spacer ring being disposed within the lower cavity. 17. The packing element system of claim 16, wherein four upper petal rings are nested together and four petal ring are nested together. 18. A method of sealing a wellbore, the method comprising the steps of: (a) running a string into a wellbore, the string having a packing element system, the packing element system having a mandrel having a mandrel outer wall surface,a rigid upper supporting member operatively associated with the mandrel outer wall surface,a rigid lower supporting member operatively associated with the mandrel below the upper supporting member,a sealing element operatively associated with the mandrel outer wall surface between the upper supporting member and the lower supporting member,an upper mesh ring comprising an upper mesh ring side wall downwardly flared for receiving an upper end portion of the sealing element within the upper mesh ring,at least one upper petal ring having an upper petal ring side wall and at least one upper petal ring slot, the upper petal ring side wall being downwardly flared for receiving a portion of the upper mesh ring,a first upper spacer ring disposed on the mandrel outer wall surface between the upper portion of the sealing element and the upper mesh ring,a second upper spacer ring disposed on the mandrel outer wall surface between the first upper spacer ring and the upper mesh ring, the second upper spacer ring comprising a second upper spacer ring inner wall surface, the second upper spacer ring inner wall surface and the mandrel outer wall surface defining a cavity, anda third upper spacer ring disposed on the mandrel outer wall surface, the third upper spacer ring being disposed within the cavity; and(b) applying a load to the mandrel to force the first upper spacer ring into the sealing element causing the sealing element to move radially outward from a longitudinal axis of the mandrel into sealing engagement with an inner wall surface of the wellbore, and causing a portion of the upper mesh ring to rotate radially outward from the longitudinal axis of the mandrel. 19. The method of claim 18, wherein the load is applied axially in a first direction along the longitudinal length of the mandrel. 20. The method of claim 19, wherein the load is further applied axially in a second direction along the longitudinal length of the mandrel. 21. The method of claim 18, wherein the load is applied radially along the longitudinal length of the mandrel.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.