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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0833679 (2010-07-09) |
등록번호 | US-RE42877 (2011-10-17) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 4 인용 특허 : 550 |
The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fl
The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.
We claim: 1. A method of cementing a borehole, comprising:extending a drill string into the earth to form the borehole, the drill string including an earth removal member having at least one fluid passage therethrough, the earth removal member operatively connected to a lower end of the drill string
We claim: 1. A method of cementing a borehole, comprising:extending a drill string into the earth to form the borehole, the drill string including an earth removal member having at least one fluid passage therethrough, the earth removal member operatively connected to a lower end of the drill string;drilling the borehole to a desired location using a drilling mud passing through the at least one fluid passage;providing at least one secondary fluid passage between the interior of the drill string and the borehole;providing a barrier across the at least one secondary fluid passage;rupturing the barrier, thereby opening the at least one secondary fluid passage; anddirecting a physically alterable bonding material into an annulus between the drill string and the borehole through the at least one secondary fluid passage.
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