发明名称 |
WELLBORE RECOVERY OPERATION |
摘要 |
The present invention relates to methods and equipment for recovering use of a wellbore in circumstances where the well bore has become blocked by downhole equipment. The invention provides a method comprising the steps of separatin g, at a release joint, a portion of equipment from a jammed portion (6) of equipment; running the separated portion of equipment uphole out of the wellbore (100); running a deflector assembly (60) downhole into the wellbore (100); and deflecting a milling tool (64) from the wellbore into surrounding formation. The method is characterised by restricting relative movement between the deflector assembly (60) and the wellbore (100) by engaging, prio r to deflecting the milling tool (64), the deflector assembly (60) with said jammed portion (6) of equipment.
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申请公布号 |
CA2460688(A1) |
申请公布日期 |
2003.04.17 |
申请号 |
CA20022460688 |
申请日期 |
2002.10.01 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
CRUICKSHANK, BRIAN;MCGARIAN, BRUCE;GILLIES, IAN ALEXANDER |
分类号 |
E21B7/06;E21B31/00;(IPC1-7):E21B31/00 |
主分类号 |
E21B7/06 |
代理机构 |
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地址 |
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