发明名称 |
An improved coring bit motor and method for obtaining a material core sample |
摘要 |
The present invention provides an improved coring motor for use in obtaining a core sample from the side wall of a drilled bore hole. The present invention provides controllable rotation, extension and retraction of the coring bit relative to the side wall without complicated positioning linkages and with conservation of space for use in slim tools for use downhole. |
申请公布号 |
AU6552801(A) |
申请公布日期 |
2002.03.28 |
申请号 |
AU20010065528 |
申请日期 |
2001.08.29 |
申请人 |
SCHLUMBERGER TECHNOLOGY B.V. |
发明人 |
EDWARD HARRIGAN;SONY TRAN;DEAN W LAUPPE;ROBERT W SUNDQUIST;BUNKER M HILL;GARY W CONTRERAS |
分类号 |
E21B4/04;E21B4/18;E21B7/08;E21B44/00;E21B49/06 |
主分类号 |
E21B4/04 |
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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