发明名称 |
Aqueous drilling fluid additive, composition and process |
摘要 |
The invention relates to an aqueous drilling fluid composition, a filtration control agent for utilization in said aqueous drilling fluid, and a method of forming a filter cake on the wall of a well for the reduction of filtrate from said drilling fluid, which are effective at high temperatures and pressures, by utilization of a terpolymer of: (1) a monovalent alkali metal salt of acrylic acid; (2) an hydroxy alkyl acrylate; and (3) acrylamide.
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申请公布号 |
US4288582(A) |
申请公布日期 |
1981.09.08 |
申请号 |
US19790088894 |
申请日期 |
1979.10.29 |
申请人 |
MILCHEM INCORPORATED |
发明人 |
LUCAS, JAMES M.;PERRICONE, ALPHONSE C.;ENRIGHT, DOROTHY P. |
分类号 |
C08F220/06;C08F220/56;C09K8/24;E21B21/00;(IPC1-7):C08F22/38 |
主分类号 |
C08F220/06 |
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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