发明名称 |
Bottom hole assembly |
摘要 |
A bottom hole assembly for use with fracturing or fracing a wellbore using coiled tubing is described having a first packing element and a second packing on a mandrel. The bottom hole assembly may be run into the wellbore such that the packing elements straddle the zone to be fraced. Also described is a timing mechanism to prevent the closing of dump ports before the bottom hole assembly may be flushed of the sand. A release tool is described that allows an operator to apply force to the coiled tubing to dislodge a bottom hole assembly without completely releasing the bottom hole assembly. Also disclosed is a collar locator capable of being utilized in a fracing process. Methods of using the above described components are also disclosed.
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申请公布号 |
US6832654(B2) |
申请公布日期 |
2004.12.21 |
申请号 |
US20020186260 |
申请日期 |
2002.06.28 |
申请人 |
BJ SERVICES COMPANY |
发明人 |
RAVENSBERGEN JOHN EDWARD;NAUMANN ANDRE;VACIK LUBOS;LAMBERT MITCH;WILDE GRAHAM |
分类号 |
E21B17/06;E21B17/20;E21B23/00;E21B23/02;E21B23/04;E21B23/06;E21B33/12;E21B33/124;E21B34/06;E21B34/08;E21B34/10;E21B43/26;(IPC1-7):E21B43/26 |
主分类号 |
E21B17/06 |
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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