发明名称 |
CORING ASSEMBLY FOR MOUNTING ON THE END OF A DRILL STRING |
摘要 |
2106691 9215766 PCTABS00016 There is provided a new and useful coring assembly (20) for mounting on the end of a drill string (18) and comprising a core barrel (26); abrading means (36) on at least a part of the core barrel; a reaming collar (30) mounted about a lower section of the core barrel and selectable between a first condition in which the collar is rotatable with the barrel and a second condition in which the collar is rotatable relative to and slidable longitudinally relative to the core barrel; a housing (60) suspended from the core barrel; a deflection crank (34) extending between the housing and the core barrel; and means (62, 64) within the housing for transferring power from a power source to the crank for selectively rotating the crank for moving the core barrel between a first position which the core barrel and the housing are aligned and a second position in which the barrel and the housing are not aligned.
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申请公布号 |
CA2106691(A1) |
申请公布日期 |
1992.09.09 |
申请号 |
CA19922106691 |
申请日期 |
1992.03.09 |
申请人 |
SIDETRACK CORING SYSTEMS INC. |
发明人 |
ZEER, ROBERT L.;MIHAI, ALEX |
分类号 |
E21B4/16;E21B7/06;E21B49/06;(IPC1-7):E21B7/06 |
主分类号 |
E21B4/16 |
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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