发明授权
- 专利标题： Methods of generating gas in and foaming well cement compositions
- 专利标题（中）： 产生气体和发泡好的水泥组合物的方法
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申请号： US10159001申请日： 2002-05-31
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公开(公告)号： US06858566B1公开(公告)日： 2005-02-22
- 发明人: B. Raghava Reddy , Karen Luke , Bryan K. Waugh , Roger S. Cromwell
- 申请人： B. Raghava Reddy , Karen Luke , Bryan K. Waugh , Roger S. Cromwell
- 申请人地址： US OK Duncan
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US OK Duncan
- 代理机构： Baker Botts L.L.P.
- 代理商 Craig W. Roddy
- 主分类号： C04B38/02
- IPC分类号： C04B38/02 ; C09K8/46 ; C09K8/473 ; C09K3/00 ; C04B16/08 ; E21B33/13
摘要：
The present invention relates to methods of generating gas in and forming cement compositions that may be introduced into a subterranean zone. A method of the present invention provides a method of generating gas in a cement composition that comprises providing the cement composition comprising a hydraulic cement and water; providing an oxidizing agent; providing at least one gas generating chemical; and contacting the cement composition with the oxidizing agent and/or the gas generating chemical downstream of at least one cement pump so that a gas is generated in the cement composition downstream of at least one cement pump. Methods of foaming cement compositions are also provided.
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