[특허]Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer

[미국특허] Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/01 E21B-033/037
출원번호	US-0323985 (2014-07-03)
등록번호	US-9650874 (2017-05-16)
발명자 / 주소	Caldwell, William Matthew Payne, Jr., James P.
출원인 / 주소	Caldwell, William Matthew
대리인 / 주소	Eldredge, Richard
인용정보	피인용 횟수 : 0 인용 특허 : 53

초록 ▼

A containment system having a containment dome and a seal plate which is attached to an oil wellhead casing or riser to prevent oil spills and contamination when an oil leak occurs. The containment dome is sealed to the seal plate by a compression mechanism so that oil will not leak from the containment dome. The seal plate may be part of a drilling package having a lower marine riser package, a blowout preventer, and a shear module below the blowout preventer. The containment dome can provide a wellhead patch to a wellhead system wherein the wellhead patch can interface with a capping stack. Chemicals can be injected into the containment dome to prevent hydrates from forming. All aspects of controlling and operating an oil wellhead can be performed through the containment dome and seal plate, and all aspects of installation, regulation, and control of the containment dome can be performed by remote operating vehicles under water.

대표청구항 ▼

1. A drilling package for an offshore wellbore having a wellhead with a seal plate having a port that provides a path for hydraulic power and/or functional connection to all encapsulated devices, said drilling package comprising in a functional order: a containment dome having: a body forming a cavity and extending and sealing to a base; anda plurality of quick connects secured to the base and configured to engage with the port;a shear module situated above said wellhead and within the cavity of the containment dome and in fluid communication with said wellbore wherein said shear module comprises one or more shear rams capable of isolating said wellbore;a blowout preventer situated above and in fluid communication with said shear module; anda lower marine riser package situated above in fluid communication with said blowout preventer. 2. The drilling package of claim 1, further comprising one or more dual gradient modules in fluid communication with said wellbore. 3. The drilling package of claim 2, wherein said dual gradient modules are connected to said shear module by connector pipes. 4. The drilling package of claim 2, further comprising flow lines extending from said one or more dual gradient modules to a riser pipe in fluid communication with said wellbore. 5. The drilling package of claim 4, wherein said flow lines are supported by buoyancy devices. 6. The drilling package of claim 1, further comprising control panels for said shear module. 7. The drilling package of claim 6, wherein said control panels are attached to said seal plate. 8. The drilling package of claim 1, wherein said shear module is configured as an outlet spool to divert fluids from said wellbore. 9. A method for drilling a well having a wellhead with a seal plate having a port that provides a path for hydraulic power and/or functional connection to all encapsulated devices, comprising: utilizing a drilling package, said drilling package comprising in a functional order, a containment dome having: a body forming a cavity and extending to a base; anda plurality of quick connects secured to the base and configured to engage with the recessed port;a shear module situated above said wellhead and comprising one or more shear rams capable of isolating said wellbore in fluid communication with said wellbore;a blowout preventer situated above and in fluid communication with said shear module andthe seal plate attached to said well head subadjacent to said shear module, wherein said seal plate is configured to engage the containment dome so as to collect and control fluids leaks from said drilling package. 10. The method of claim 9, further comprising diverting fluids from said wellbore through one or more flowlines attached to said shear module.

이 특허에 인용된 특허 (53) 인용/피인용 타임라인 분석

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Jaworowsky Igor (P.O. Box 157 Branchville NJ 07826), Method and apparatus for water flow stimulation in a well.
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Cochrane, David Robb, Method and arrangement for sealing a subsea oil wellhead.
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[미국특허] Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer 원문보기

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[미국특허] Apparatus and method for isolating and securing an underwater oil wellhead and blowout preventer 원문보기

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