发明名称 |
APPARATUS AND METHODS FOR PRESSURE COMPENSATED CONTACT WITH THE BOREHOLE WALL |
摘要 |
A well logging tool includes a housing; at least one piston moveably dispose d on the housing; at least one sensor disposed on the at least one piston; a pressure compensation system coupled to the at least one piston such that a pressure at a back side of the at least one piston is substantially identical to a pressure outside the well logging tool; and a piston deployment mechanism for deploying the at least one pisto n. A method for well logging using a logging tool having at least one piston and a pressure compensating system, wherein the at least one piston includes at least one sensor, the method includes disposing the well logging tool in a borehole; deploying the at least one piston to establish a contact between the at least one piston and a wall of the borehole; and measuring a formation property using the at least one sensor.
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申请公布号 |
CA2481751(A1) |
申请公布日期 |
2005.03.15 |
申请号 |
CA20042481751 |
申请日期 |
2004.09.13 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
HOMAN, DEAN M.;CHEN, KUO-CHIANG |
分类号 |
G01V11/00;(IPC1-7):E21B47/01 |
主分类号 |
G01V11/00 |
代理机构 |
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主权项 |
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地址 |
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