IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0116889
(2011-05-26)
|
등록번호 |
US-8167049
(2012-05-01)
|
우선권정보 |
GB-0312543.2 (2003-05-31); GB-0405454.0 (2004-03-11); GB-0405471.4 (2004-03-11) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Cameron Systems (Ireland) Limited
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
124 |
초록
▼
Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments all
Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replace the tree. Multiple diverter assembly embodiments are also described.
대표청구항
▼
1. A tree for a well comprising a tree body with a production bore and an annulus bore, a production wing comprising a production choke body with an outlet, and an annulus wing having an annulus choke body with an inlet, the tree comprising: a processing apparatus comprising a conduit communicating
1. A tree for a well comprising a tree body with a production bore and an annulus bore, a production wing comprising a production choke body with an outlet, and an annulus wing having an annulus choke body with an inlet, the tree comprising: a processing apparatus comprising a conduit communicating with a first production flowpath extending through a production diverter assembly disposed on the production choke body and communicating with the production wing and a conduit communicating with a second production flowpath communicating with the outlet; andthe processing apparatus comprising a conduit communicating with a first annulus flowpath extending through an annulus diverter assembly disposed on the annulus choke body and communicating with the annulus wing and a conduit communicating with a second annulus flowpath communicating with the inlet. 2. The tree of claim 1 wherein fluid may be recovered and/or injected either at the same time or at different times into the well. 3. The tree of claim 1 further including a production tubing extending from the production bore to a production zone and an outer tubing around the production tubing forming an annulus extending from the annulus bore to an injection zone. 4. The tree of claim 3 further including sealing means to seal the annulus to separate the production zone from the injection zone. 5. A tree of an oil or gas well, comprising: a tree body comprising a production bore;a lateral branch comprising a branch bore forming part of a first flowpath to and from the production bore;a choke disposed on the lateral branch, the choke comprising a choke bore forming part of a second flowpath with an export line; anda diverter comprising a conduit with an internal passage extending through a diverter bore in the diverter and into the lateral branch, the internal passage communicating with the second flowpath, and the conduit and diverter bore forming part of the first flowpath. 6. The tree of claim 5 further including a passageway comprising a valve, the passageway connecting the first and second flowpaths. 7. A tree of an oil or gas well, comprising: a tree body comprising a production bore;a lateral branch comprising a branch bore forming part of a first flowpath to and from the production bore;a choke disposed on the lateral branch, the choke comprising a choke bore forming part of the first flowpath; anda diverter comprising a conduit with an internal passage extending through a diverter bore in the diverter and into the lateral branch, the internal passage communicating with a second flowpath communicating with an export line, and the conduit and diverter bore forming part of the first flowpath. 8. An assembly for a plurality of production wells, comprising: a first diverter assembly comprising a production conduit inserted into a first choke body to form a first flow region for produced fluids of a first tree of a first production well to an outlet and the production conduit forming a second flow region for fluids from an inlet header through an inlet of the second flow region to an outlet;conduits extending from the outlets to a tubing communicating with a pump;a second diverter assembly comprising a production conduit inserted into a second choke body to form a first flow region for produced fluids of a second tree of a second production well to an outlet and the production conduit forming a second flow region to flow fluids through the second flow region from an inlet to an export line and output header; andthe outlet communicating with the inlet of the pump and the inlet communicating with the outlet of the pump. 9. A tree of an oil or gas well with a tree body comprising a production bore, the tree comprising: a production wing branch disposed on the tree and comprising a production wing bore communicating with the production bore;a choke body disposed on the production wing branch, the choke body comprising a choke bore which is in fluid communication with the production wing bore, an upper bore terminating in an aperture, and a lower end of the choke bore communicating with the production wing bore and a choke bore outlet; anda diverter including a housing comprising a diverter passage with an outlet and the diverter including a stem with a plug on one end of the stem, the plug extending below the diverter housing and engaging a seat in the choke body to close the choke bore outlet, a flowpath being formed by the production wing bore and passage allowing fluids to flow in either direction between the production bore and choke outlet. 10. The tree of claim 9 wherein the diverter outlet is a lateral passage in the housing. 11. The tree of claim 9 wherein the diverter outlet is coaxial with the diverter passage. 12. A tree of an oil or gas well with a tree body having a production bore, comprising: a production wing branch disposed on the tree and comprising a production wing bore communicating with the production bore;a choke body disposed on the production wing branch, the choke body comprising a choke bore which is in fluid communication with the production wing bore, an upper bore terminating in an aperture, and a lower end of the choke bore communicating with the production wing bore and a choke bore outlet; anda diverter including a housing comprising a diverter passage with an outlet aperture and the diverter including a conduit with a conduit bore and a lower end comprising seals, the lower end extending below the diverter housing and sealingly engaging a seat in the choke body to form a first region with the conduit bore and the lower end of the choke bore, a second region being formed by the annular area between the conduit and axial passage and the production wing bore, allowing fluids to flow in either direction through the first and second regions. 13. The tree of claim 12 wherein an upper end of the diverter passage is connected to a first conduit extending to a processing apparatus and a second conduit connecting the processing apparatus to an aperture communicating with the production bore of the tree. 14. An assembly for recovering fluids from a first well and injecting a portion of those fluids in a second well, comprising: a production wing branch disposed on the tree of the first well and comprising a production wing bore communicating with the production bore;a first choke body disposed on the production wing branch, the first choke body comprising a choke bore which is in fluid communication with the production wing bore, an upper bore terminating in an aperture, and a lower end of the choke bore communicating with the production wing bore and a choke bore outlet;a first diverter including a housing comprising a diverter passage with an outlet, the first diverter including a stem with a plug on one end of the stem, the plug extending below the diverter housing and engaging a seat in the first choke body to close the choke bore outlet, the choke bore outlet being connected to a processing apparatus by a conduit, a flowpath being formed by the production wing bore and diverter passage allowing fluids to flow in from the production bore to the processing apparatus;a conduit connecting the processing apparatus to the choke bore outlet of the second well;a production wing branch disposed on the tree of the second well and comprising a production wing bore communicating with the production bore;a second choke body disposed on the production wing branch, the second choke body comprising a choke bore which is in fluid communication with the production wing bore, an upper bore terminating in an aperture, and a lower end of the choke bore communicating with the production wing bore and a choke bore outlet;a second diverter including a housing comprising a diverter passage with an outlet and the second diverter including a stem with a plug on one end of the stem, the plug extending below the diverter housing and engaging a seat in the second choke body to close the choke bore outlet, a flowpath being formed by the production wing bore and diverter passage of the second well allowing fluids to flow from the processing apparatus to the production bore of the second well. 15. A tree for a well comprising a tree body with a production bore and an annulus bore, a production wing comprising a production choke body with an outlet and an annulus wing comprising an annulus choke body with an inlet, the tree comprising: a processing apparatus comprising a conduit communicating with a first production flowpath extending through a production diverter assembly disposed on the production choke body and communicating with the production wing and a conduit communicating with a second production flowpath communicating with the outlet; andthe processing apparatus comprising a conduit communicating with a first annulus flowpath extending through an annulus diverter assembly disposed on the annulus choke body and communicating with the annulus wing and a conduit communicating with a second annulus flowpath communicating with the inlet; andthe first production flowpath and second annulus flowpath being formed by a stem with a plug on one end of the stem, the plug extending below the diverter housing and engaging a seat in the choke body to close the choke bore outlet.
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