- 专利标题： Method for removing filter cake from a horizontal wellbore using acid foam
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申请号： US11025883申请日： 2004-12-28
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公开(公告)号： US20060137879A1公开(公告)日： 2006-06-29
- 发明人: Albert Chan
- 申请人： Albert Chan
- 主分类号： E21B43/27
- IPC分类号： E21B43/27 ; E21B37/00
摘要：
A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic fluorocarbon surfactant, an alkyl alcohol, water optionally containing ammonium chloride and at least one of an alkyl polyglycoside and a betaine surfactant to produce a stable foam used to remove filter cake from a horizontal wellbore.
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