发明名称 |
ABANDONMENT AND CONTAINMENT SYSTEM FOR GAS WELLS |
摘要 |
The invention presents a method for plugging and abandoning spent wells. An expandable liner hanger having sealing elements positioned thereon, is run-in and expanded, creating at least one seal against fluid migration. A redundant seal is created using a swellable annular sealing device, such as a swell packer. The swell packer and liner hanger are run-in and expanded. A bottom valve is closed and the expansion and running tools released from the liner hanger. After pulling out of the running tool, the wellbore is cemented creating an effective plug. |
申请公布号 |
WO2014137314(A1) |
申请公布日期 |
2014.09.12 |
申请号 |
WO2013US28926 |
申请日期 |
2013.03.04 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
JOHNSON, MICHAEL;ARABIE, BLAKE |
分类号 |
E21B33/12;E21B33/13 |
主分类号 |
E21B33/12 |
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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