发明名称 |
Casing-engaging well tree isolation tool and method of use |
摘要 |
A casing-engaging wellhead isolation and method of the tool protects wellheads from lifting pressures induced by high fluid pressures and high flow rates used to stimulate low pressure wells. A releasable packer assembly mounted to a bottom end of a mandrel of the tool grips the casing and transfers the lifting pressures directly to the casing. Well treatment safety is thereby significantly enhanced.
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申请公布号 |
US7168495(B2) |
申请公布日期 |
2007.01.30 |
申请号 |
US20040813832 |
申请日期 |
2004.03.31 |
申请人 |
OIL STATES ENERGY SERVICES, INC. |
发明人 |
DALLAS L. MURRAY;MCGUIRE BOB |
分类号 |
E21B33/068;E21B33/12 |
主分类号 |
E21B33/068 |
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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