发明名称 |
Foaming agents for use in coal seam reservoirs |
摘要 |
A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to stimulate methane production. The composition preferably is a foam that comprises a gas such as nitrogen or air. Preferably, the surfactant has the formula R-NH2-(CH2)n-C(O)OX wherein R is a saturated or unsaturated alkyl group having from 6-20 carbon atoms, n is from 2-6, and X is hydrogen or a salt forming cation.
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申请公布号 |
US2003207768(A1) |
申请公布日期 |
2003.11.06 |
申请号 |
US20010969392 |
申请日期 |
2001.10.02 |
申请人 |
ENGLAND KEVIN W;BROWN J ERNEST;HINKEL JERALD J;REDDY RAMCHANDRA M |
发明人 |
ENGLAND KEVIN W;BROWN J ERNEST;HINKEL JERALD J;REDDY RAMCHANDRA M |
分类号 |
C09K8/70;C09K8/94;(IPC1-7):E21B1/00 |
主分类号 |
C09K8/70 |
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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