发明授权
EP1427682B1 METHODS AND ULTRA-LOW DENSITY SEALING COMPOSITIONS FOR SEALING PIPE IN WELL BORES
有权
方法和非常低的密封组合物入孔胶结PIPE缕缕
- 专利标题： METHODS AND ULTRA-LOW DENSITY SEALING COMPOSITIONS FOR SEALING PIPE IN WELL BORES
- 专利标题（中）： 方法和非常低的密封组合物入孔胶结PIPE缕缕
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申请号： EP02715512.6申请日： 2002-01-16
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公开(公告)号： EP1427682B1公开(公告)日： 2005-07-20
- 发明人: ZAMORA, Frank , CHATTERJI, Jiten , CROMWELL, Roger S. , KING, Bobby J. , GRAY, Dennis W. , CROOK, Ronald J.
- 申请人： Halliburton Energy Services, Inc.
- 申请人地址： P.O. Box Drawer 1431 Duncan, Oklahoma 73533 US
- 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： P.O. Box Drawer 1431 Duncan, Oklahoma 73533 US
- 代理机构： Wain, Christopher Paul
- 优先权： US960768 20010921
- 国际公布： WO2003024886 20030327
- 主分类号： C04B26/14
- IPC分类号： C04B26/14 ; E21B33/13 ; E21B33/14
摘要：
The present invention provides methods and ultra-low density sealing compositions for sealing pipe in well bores penetrating formations which readily fracture at low hydrostatic pressures. A method of the invention basically comprises the steps of providing a hardenable ultra-low density sealing composition comprised of an epoxide containing liquid, a hardening agent, a hardening accelerating agent, a light weight filler and hollow glass michrospheres having a density in the range of from about 5 to 8.5 pounds per gallon, placing the sealing-composition in the annulus between the pipe to be sealed and the walls of the well bore and allowing the sealing composition to harden therein.
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