发明名称 |
Downhole drilling fluid and filter cake removal |
摘要 |
<p>Gelled and dehydrated drilling fluid and filter cake are removed from the walls of wellbores by contacting them with a removal composition comprising of an aqueous sugar solution, which causes disintegration of the drilling fluid and filter cake. The sugar is a mono-, di- or tri- saccharide (or any mixture of two or more thereof). The composition may also contain a surface active agent.</p> |
申请公布号 |
EP0702127(A1) |
申请公布日期 |
1996.03.20 |
申请号 |
EP19950306393 |
申请日期 |
1995.09.13 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
WEAVER, JIM;EOFF, LARRY S.;WILSON, J. MICHAEL;RAVI, KRISHNA M.;GDANSKI, RICK |
分类号 |
C09K8/52;(IPC1-7):E21B37/06 |
主分类号 |
C09K8/52 |
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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