发明名称 CORING TOOL WITH RETENTION DEVICE.
摘要 In some embodiments, the invention relates to a sidewall coring tool that includes a tool body, a hollow coring shaft extendable from the tool body, and a formation cutter disposed at a distal end of the hollow coring shaft. The coring tool includes a retention member segmented into a plurality of petals and disposed proximate a distal end of the internal shaft. An internal sleeve may be disposed inside the hollow coring shaft.
申请公布号 MXPA04012369(A) 申请公布日期 2005.06.23
申请号 MX2004PA12369 申请日期 2004.12.09
申请人 SCHLUMBERGER TECHNOLOGY B.V. 发明人 DEAN LAUPPE
分类号 E21B25/06;E21B49/06;(IPC1-7):E21B49/10 主分类号 E21B25/06
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