发明名称 |
FREMGANGSMAATE FOR POLYMERBASERT OLJEUTVINNING. |
摘要 |
<p>A process for preparing a polymer solution for use in "polymer based" oil recovery comprises adding to water the polymer in the form of an aqueous solution, a dry particulate solid or a suspension in a non-aqueous liquid, and also adding a complexing agent for multivalent ions and, where the solution so formed does not already contain an alkali metal salt, subsequently incorporating therein an alkali metal salt. The polymer may be a substantially cell-free microbial polysaccharide gum, a polyacrylamide or a cellulose derivative.</p> |
申请公布号 |
NO150695(B) |
申请公布日期 |
1984.08.20 |
申请号 |
NO19790002092 |
申请日期 |
1979.06.22 |
申请人 |
HERCULES INC, |
发明人 |
PACE, GARY WILLIAM,;HOLDING, TREVOR JOHN, |
分类号 |
C09K8/12;C08B37/00;C08J3/03;C09K8/24;C09K8/60;C09K8/90;C12P19/04;C12P19/06;(IPC1-7):21B43/22 |
主分类号 |
C09K8/12 |
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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