发明公开
EP2985408A1 Apparatus and methods for well cementing
审中-公开
Vorrichtung und Verfahren zur Bohrlochzementierung
- 专利标题： Apparatus and methods for well cementing
- 专利标题（中）： Vorrichtung und Verfahren zur Bohrlochzementierung
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申请号： EP14290249.3申请日： 2014-08-11
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公开(公告)号： EP2985408A1公开(公告)日： 2016-02-17
- 发明人: James, Simon Gareth , Balogh, Viktor
- 申请人： Services Petroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V.
- 申请人地址： 42, rue Saint-Dominique 75007 Paris FR
- 专利权人： Services Petroliers Schlumberger,Schlumberger Holdings Limited,Schlumberger Technology B.V.
- 当前专利权人： Services Petroliers Schlumberger,Schlumberger Holdings Limited,Schlumberger Technology B.V.
- 当前专利权人地址： 42, rue Saint-Dominique 75007 Paris FR
- 代理机构： Leonori, Céline
- 主分类号： E21B33/13
- IPC分类号： E21B33/13 ; E21B44/00 ; E21B47/12 ; E21B21/08
摘要：
An apparatus for performing managed pressure cementing operations includes at least one pressure sensor (101) attached to a tubular body, a downhole telemetry system (102), a surface telemetry system (103) and a managed pressure drilling interface (104). Downhole pressure data may be transmitted from the downhole telemetry system to the surface telemetry system by mud pulse telemetry. Pressure sensors may be installed on the outside of a tubular body, on the inside a tubular body or both.
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