发明名称 |
PROCESS FOR CONTROLLING GAS MIGRATION DURING WELL CEMENTING. |
摘要 |
The present invention provides a cement composition and a process for using the cement composition to inhibit gas migration from a subterranean zone into the cement. The process comprises displacing a gelling additive, preferably comprised within a cement composition, into a well bore such that the gelling additive passes into the subterranean zone, and allowing the gelling additive to form a crosslink ed gel in the subterranean zone to inhibit gas migration from the subterranean zone. The crosslinked gel acts as a barrier to gas in the subterranean zone and thereby inhibits t he gas from passing into the cement and forming flow channels therein before the cement can set.
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申请公布号 |
MXPA03007706(A) |
申请公布日期 |
2004.03.18 |
申请号 |
MX2003PA07706 |
申请日期 |
2003.08.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
BACH DAO |
分类号 |
C04B7/00;C04B24/26;C04B26/02;C04B28/02;C08J3/00;C09K3/00;C09K8/493;E21B;E21B21/00;E21B33/13;E21D11/04;(IPC1-7):E21D11/04 |
主分类号 |
C04B7/00 |
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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