发明名称 |
Drilling fluid and filter cake removal methods and compositions |
摘要 |
Methods and compositions for removing gelled and dehydrated drilling fluid and filter cake from the walls of wellbores are provided. The methods basically include contacting the drilling fluid and filter cake with a removal composition comprised of an aqueous sugar solution for a period of time sufficient to cause the disintegration of the drilling fluid and filter cake. The composition, having the disintegrated drilling fluid and filter cake dispersed therein, is then displaced from the wellbore.
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申请公布号 |
US5501276(A) |
申请公布日期 |
1996.03.26 |
申请号 |
US19940306689 |
申请日期 |
1994.09.15 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
WEAVER, JIM;RAVI, KRISHNA M.;EOFF, LARRY S.;GDANSKI, RICK;WILSON, J. MICHAEL |
分类号 |
C09K8/52;(IPC1-7):E21B33/16;E21B37/00 |
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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