[특허]Release assembly for a downhole tool string and method for use thereof

Halliburton Energy Services, Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Release assembly for a downhole tool string and method for use thereof

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-004/04 E21B-047/00 E21B-017/00 E21B-023/00
미국특허분류(USC)	166/250.01; 166/242.6; 166/377; 166/066.4
출원번호	US-0645699 (2012-10-05)
등록번호	US-8540021 (2013-09-24)
우선권정보	WO-PCT/US2011/062405 (2011-11-29)
발명자 / 주소	McCarter, Micky Roy Howk, Joshua Blake
출원인 / 주소	Halliburton Energy Services, Inc.
대리인 / 주소	Youst, Lawrence R.
인용정보	피인용 횟수 : 5 인용 특허 : 9

초록
▼

A release assembly (200) for releasing a portion of a tool string in a wellbore. The release assembly (200) includes an outer housing (202) having a fishing receptacle (206) disposed therein. The fishing receptacle (206) includes a fishing neck (208). A support assembly (214) is disposed within the housing (202). The support assembly (214) has a first position wherein the support assembly (214) engages the fishing neck (208) to prevent separation of the fishing receptacle (206) from the housing (202) and a second position wherein the support assembly (214) is disengaged from the fishing neck (208) no longer preventing separation of the fishing receptacle (206) from the housing (202). An actuator (224), disposed within the housing (202), maintains the support assembly (214) in the first position until actuation thereof allows the support assembly (214) to shift to the second position.

대표
청구항
▼

1. A method for releasing a portion of a tool string downhole of a release assembly positioned in a wellbore, the method comprising: providing a surface controller;running the tool string into the wellbore, the tool string including a downhole controller, a plurality of downhole remote units, a release assembly operably associated with a first one of the downhole remote units and a downhole tool positioned downhole of the release assembly;sticking the tool string in the wellbore;sending an actuation command including an address of the first downhole remote unit from the surface controller to the downhole controller;relaying the actuation command from the downhole controller to the first downhole remote unit;sending an actuation signal from the first downhole remote unit to the release assembly; andactuating the release assembly to release the portion of the tool string downhole thereof including the downhole tool by electrically actuating a first release member to enable relative axial movement between a fishing receptacle and an outer housing of the release assembly then mechanically actuating a second release member to decouple the fishing receptacle from the outer housing. 2. The method as recited in claim 1 wherein sticking the tool string in the wellbore further comprises operating the downhole tool. 3. The method as recited in claim 2 wherein operating the downhole tool further comprising detonating a perforating gun. 4. The method as recited in claim 2 wherein operating the downhole tool further comprising setting an isolation plug. 5. The method as recited in claim 1 wherein sending the actuation command including the address of the first downhole remote unit further comprising sending an actuation command including a unique digital address of the first downhole remote unit. 6. The method as recited in claim 1 wherein sending the actuation signal from the first downhole remote unit to the release assembly further comprising sending a voltage signal. 7. The method as recited in claim 1 wherein electrically actuating the first release member further comprises operating a solenoid to shift a sleeve out of engagement with jaws of a support assembly to release a fishing neck of the fishing receptacle and wherein mechanically actuating the second release member further comprises shearing at least one shearable member initially coupling the fishing receptacle to the outer housing. 8. A method for releasing a portion of a tool string downhole of a release assembly positioned in a wellbore, the method comprising: providing a surface controller;running the tool string including a downhole controller, a plurality of downhole remote units and a plurality of release assemblies each operably associated with one of the downhole remote unit into the wellbore;sticking the tool string in the wellbore;placing the tool string in tension;obtaining tension information at the surface controller from the release assemblies;identifying the first release assembly uphole of a location wherein the tool string is stuck based upon the tension information;sending an actuation command to the downhole remote unit operably associated with the first release assembly via the downhole controller;sending an actuation signal to the first release assembly from the downhole remote unit operably associated therewith; andactuating the first release assembly to release the portion of the tool string downhole thereof by electrically actuating a first release member to enable relative axial movement between a fishing receptacle and an outer housing of the release assembly then mechanically actuating a second release member to decouple the fishing receptacle from the outer housing. 9. The method as recited in claim 8 wherein sticking the tool string in the wellbore further comprises operating a downhole tool disposed within the tool string. 10. The method as recited in claim 8 wherein identifying the first release assembly uphole of the location wherein the tool string is stuck further comprises comparing tension information from each of the release assemblies to determine the location wherein the tool string is stuck. 11. The method as recited in claim 8 wherein sending the actuation signal to the first release assembly from the downhole remote unit operably associated therewith further comprising sending a voltage signal. 12. The method as recited in claim 8 electrically actuating the first release member further comprises operating a solenoid to shift a sleeve out of engagement with jaws of a support assembly to release a fishing neck of the fishing receptacle and wherein mechanically actuating the second release member further comprises shearing at least one shearable member initially coupling the fishing receptacle to the outer housing. 13. A system for releasing a portion of a tool string positioned in a wellbore, the system comprising: a surface controller;a downhole controller positioned within the tool string and operable to communicate with the surface controller;a plurality of downhole remote units positioned within the tool string and operable to communicate with the downhole controller;a release assembly positioned within the tool string and operably associated with a first one of the downhole remote units, the release assembly including an outer housing, a fishing receptacle disposed within the housing, the fishing receptacle having a fishing neck, a first release member initially coupling the fishing receptacle to the outer housing, a support assembly disposed within the housing, the support assembly having a first position wherein the support assembly engages the fishing neck to prevent relative axial movement between the fishing receptacle and the housing and a second position wherein the support assembly is disengaged from the fishing neck no longer preventing relative axial movement between the fishing receptacle and the housing and a second release member disposed within the housing, the second release member initially maintaining the support assembly in the first position; anda downhole tool positioned within the tool string downhole of the release assembly,wherein, an actuation command including an address of the first downhole remote unit is sent from the surface controller to the downhole controller, the actuation command is relayed from the downhole controller to the first downhole remote unit, and an actuation signal is sent from the first downhole remote unit to the release assembly to electrically actuate the second release member shifting the support assembly from the first position to the second position, andwherein, after shifting the support assembly to the second position, mechanical actuation of the first release member decouples the fishing receptacle and the outer housing. 14. The system as recited in claim 13 wherein the downhole tool is selected from the group consisting of a perforating gun and an isolation plug. 15. The system as recited in claim 13 wherein the address of the first downhole remote unit further comprising a unique digital address. 16. The system as recited in claim 13 wherein the actuation signal further comprises a voltage signal. 17. The system as recited in claim 13 wherein the second release member further comprises a solenoid and an actuator sleeve operably associated with the solenoid, the actuator sleeve engaging rotatable jaws to maintain engagement of the rotatable jaws with the fishing neck until electrical actuation of the solenoid shifts the actuator sleeve enabling rotation of the rotatable jaws out of engagement with the fishing neck. 18. The system as recited in claim 13 wherein the first release member further comprises at least one shearable member. 19. The system as recited in claim 13 wherein the first release member further comprises a plurality of shearable members. 20. The system as recited in claim 19 wherein the plurality of shearable members are circumferentially distributed about the outer housing.

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 5

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특허 상세정보

Release assembly for a downhole tool string and method for use thereof

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이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 5

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Release assembly for a downhole tool string and method for use thereof

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이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

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상세정보조회

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IPC 상세정보(version : 201201)

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