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 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 |
CA2597137(C) |
申请公布日期 |
2009.05.19 |
申请号 |
CA20012597137 |
申请日期 |
2001.02.19 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
ENGLAND, KEVIN W.;BROWN, J. ERNEST;HINKEL, JERALD J.;REDDY, RAMCHANDRA M. |
分类号 |
C09K8/68;C09K8/594;C09K8/80;E21B43/26;E21B43/267 |
主分类号 |
C09K8/68 |
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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