Method of and apparatus for completing a well
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-047/12
E21B-034/06
E21B-033/12
E21B-023/06
출원번호
US-0743440
(2015-06-18)
등록번호
US-9359890
(2016-06-07)
우선권정보
GB-0720421.7 (2007-10-19)
발명자
/ 주소
Purkis, Daniel
출원인 / 주소
Petrowell Limited
대리인 / 주소
Winstead PC
인용정보
피인용 횟수 :
0인용 특허 :
107
초록▼
A completion apparatus for completing a wellbore includes a tool to alternatively open and close a throughbore; a tool to alternatively open and close an annulus between the outer surface of the completion and the inner surface of the wellbore; a tool to alternatively provide and prevent a fluid cir
A completion apparatus for completing a wellbore includes a tool to alternatively open and close a throughbore; a tool to alternatively open and close an annulus between the outer surface of the completion and the inner surface of the wellbore; a tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion to the annulus; and at least one signal receiver and processing tool capable of decoding signals received. The apparatus is run into the well bore, the throughbore is closed and the fluid pressure in the tubing is increased to pressure test the completion; the annulus is closed and a fluid circulation route is provided from the throughbore to the annulus and fluid is circulated through the production tubing into the annulus and back to surface. The fluid circulation route is then closed and the throughbore is opened.
대표청구항▼
1. An apparatus comprising: a downhole barrier tool to alternatively open and close a throughbore of the apparatus;a downhole packer tool to alternatively open and close an annulus defined between the outer surface of the apparatus and the inner surface of a wellbore;a downhole circulation tool to a
1. An apparatus comprising: a downhole barrier tool to alternatively open and close a throughbore of the apparatus;a downhole packer tool to alternatively open and close an annulus defined between the outer surface of the apparatus and the inner surface of a wellbore;a downhole circulation tool to alternatively provide and prevent a fluid circulation route between the throughbore and the annulus above the downhole packer tool;a downhole signal receiver and processing tool that decodes wireless signals received to operate at least one of the downhole barrier tool, the downhole packer tool, and the downhole circulation tool; andwherein the circulation tool is located below the signal receiver and processing tool, and both the packer tool and the barrier tool are located below the circulation tool. 2. The apparatus of claim 1, wherein the apparatus is a completion apparatus for completing a wellbore. 3. The apparatus according to claim 1 further comprising: a downhole actuation tool comprising a powered actuation mechanism to operate the downhole barrier tool, the downhole packer tool and the downhole circulation tool under instruction from the downhole signal received processing tool. 4. The apparatus according to claim 3, wherein the downhole signal receiver and processing tool comprises a downhole timed instruction storage means provided with a series of instructions and associated operational timings for instructing the downhole actuation tool to operate the downhole barrier tool, the downhole packer tool and the downhole circulation tool. 5. The apparatus according to claim 3, wherein the downhole signal receiver and processing tool and the downhole actuation tool are formed in one downhole tool having multiple features. 6. The apparatus according to claim 3, wherein the downhole actuation tool comprises an electrical power means which comprises an electrical power storage means in the form of one or more batteries. 7. The apparatus according to claim 6, wherein the downhole actuation tool further comprises an electrical motor driven by the batteries that provides motive power to operate, either directly or indirectly, the downhole barrier tool, the downhole packer tool and the downhole circulation tool. 8. The apparatus according to claim 6, wherein the downhole actuation tool preferably moves a piston to provide hydraulic fluid power to operate the downhole barrier tool, the downhole packer tool and the downhole circulation tool. 9. The apparatus according to claim 1, wherein the downhole circulation tool is located, within a production string, closer to the surface of the well than either of the downhole barrier tool and the downhole packer tool. 10. The apparatus according to claim 1, wherein the downhole circulation tool comprises a circulation sub. 11. The apparatus according to claim 1, wherein the downhole barrier tool comprises a valve. 12. The apparatus according to claim 11, wherein the valve comprises a ball valve or a flapper valve. 13. The apparatus according to claim 1, wherein the downhole packer tool comprises a packer or the like. 14. The apparatus according to claim 1, wherein the at least one downhole signal receiver and processing tool is capable of wirelessly receiving signals sent from the surface and comprises a radio frequency identification (RFID) tag receiving coil. 15. The apparatus according to claim 1, wherein the downhole signal receiver and processing tool comprises a second signal receiving means capable of decoding wireless signals received relating to the operation of the downhole barrier tool, the downhole packer tool and the downhole circulation tool and said second signal receiving means of the downhole signal receiver and processing tool comprises a pressure sensor. 16. A method comprising: i) running in an apparatus into a wellbore, the apparatus being provided at a lower end of a production tubing which is adapted to selectively contain fluid at pressure, the apparatus comprising: a downhole barrier tool to alternatively open and close a throughbore of the apparatus;a downhole packer tool to alternatively open and close an annulus defined between an outer surface of the apparatus and an inner surface of the wellbore;a downhole circulation tool to alternatively provide and prevent a fluid circulation route between the throughbore of the apparatus and the annulus; anda downhole signal receiver and processing tool that decodes wireless signals received relating to the operation of the downhole barrier tool, the downhole packer tool, and the downhole circulation tool;ii) operating the downhole barrier tool to close the throughbore of the apparatus;iii) increasing a pressure within the production tubing;iv) operating the downhole packer tool to close the annulus;v) operating the downhole circulation tool to provide a fluid circulation route between the throughbore of the apparatus and the annulus;vi) operating the downhole circulation tool to prevent the fluid circulation route between the throughbore of the apparatus and the annulus; andvii) operating the downhole barrier tool to open the throughbore of the apparatus. 17. The method of claim 16, wherein the method is for completing a wellbore and the apparatus is a completion apparatus. 18. The method according to claim 16, wherein the downhole circulation tool is operated to provide or prevent fluid circulation through a sidewall of a completion. 19. The method according to claim 16, wherein one or more of ii), iv), v), vi) and vii) are carried out by transmitting a signal arranged to be received by a signal receiver means of the downhole signal receiver and processing tool. 20. The method according to claim 19 wherein ii), iv), v), vi) and vii) further comprise transmitting the signal without requiring an intervention into the apparatus and without requiring cables to transmit power and signals from the surface to the apparatus. 21. The method according to claim 19, wherein at least one of ii) and vi) comprise coding a means to carry data at the surface with the signal, introducing the means to carry data into the path of fluid pumped from surface to downhole such that it flows toward and through at least a portion of the apparatus such that the signal is received by the signal receiver means of the downhole signal receiver and processing tool. 22. The method according to claim 19, wherein at least one of iv), v), and vii) further comprise sending the signal via a change in the pressure of the fluid contained within the throughbore of the apparatus. 23. The method according to claim 22, wherein iv) comprises sending the signal via a predetermined frequency of changes in the pressure of the fluid contained within the throughbore of the apparatus such that a second signal receiving means of the downhole signal receiver and processing tool detects said signal. 24. The method according to claim 23 further comprising verifying that the downhole packer tool has operated to close the annulus. 25. The method according to claim 22, wherein v) further comprises sending the signal via a different predetermined frequency of changes in the pressure of the fluid contained within the throughbore of the apparatus compared to the frequency used in iv) such that a second signal receiving means of the downhole signal receiver and processing tool detects said signal and acts to operate the downhole circulation tool to provide a fluid circulation route between the throughbore of the apparatus and the annulus. 26. The method according to claim 22, wherein vii) comprises sending the signal via a different predetermined frequency of changes in the pressure of the fluid contained within the throughbore of the apparatus compared to the frequency used in iv) and v) such that a second signal receiving means of the downhole signal receiver and processing tool detects said signal and acts to operate the downhole barrier tool to open the throughbore of the apparatus. 27. The method according to claim 16, wherein iii) further comprises increasing the pressure within the production tubing to pressure test the apparatus by increasing the pressure of a fluid at the surface of the well in communication with the fluid in the throughbore of the apparatus above the closed downhole barrier tool. 28. The method according to claim 16, wherein the downhole circulation tool is run into the well in a closed configuration such that fluid cannot flow between the throughbore of the apparatus and the annulus via side ports formed in the downhole circulation tool. 29. The method according to claim 16, wherein the downhole barrier tool is run into the well in an open configuration such that fluid can flow through the throughbore of the apparatus without being impeded or prevented by the downhole barrier tool. 30. The method according to claim 16, wherein the downhole packer tool is run into the wellbore in an unset configuration such that the annulus is not closed by it during running in. 31. The method according to claim 16, wherein the method further comprises storing a series of instructions in a storage means at surface prior to running the apparatus into the wellbore.
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