发明名称 |
NEUTRALLY-BUOYANT BOREHOLE INVESTIGATION TOOLS AND METHODS |
摘要 |
<p>The disclosure provides neutrally-buoyant tools for seismic data collection. The tools may range from several hundred meters to several kilometers in length and have integrated sensors which move along with the borehole fluid in response to a passing seismic wave. The disclosure also provides methods of deploying neutrally-buoyant tools, which includes using a tractor, adding a weight or both to the tool in order to overcome the difficulty of lowering a neutrally buoyant tool into a borehole, and optionally occasionally clamping the tool to the borehole to alleviate tension in the tool. This disclosure also provides methods of acquiring seismic data, which involves positioning a neutrally-buoyant tool in a borehole such that the tool is able to move relatively freely along with the borehole fluid in response to a seismic wave passing through the fluid, firing a seismic source, and using the sensors to collect seismic data generated thereby.</p> |
申请公布号 |
WO2014004191(A1) |
申请公布日期 |
2014.01.03 |
申请号 |
WO2013US46476 |
申请日期 |
2013.06.19 |
申请人 |
SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
GOUJON, NICOLAS;KRAGH, JULIAN EDWARD;CHRISTIE, PHILIP A.F.;COSTE, EMMANUEL;KOSTOV, CLEMENT;TEIGEN, OEYVIND;IKEGAMI, TORU;CHARARA, MARWAN |
分类号 |
E21B47/09;E21B49/00;G01V3/08 |
主分类号 |
E21B47/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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