| 发明名称 |
USE OF OLEFIN SULPHONATE COMPOSITIONS IN ENHANCED OIL RECOVERY PROCESSES |
| 摘要 |
The invention provides olefin sulphonate compositions comprising an aqueous solution containing 15 to 35%w of a blend of (a) C12-22 linear alpha-olefin sulphonate and b) alkyl aryl sulphonate of general formula <CHEM> where n is 0, 1 or 2. R is a C8-18 alkyl group and M ist an alkali metal or ammonium ion, the weight ratio (a):(b) being in the range 90:10 to 60:40; and use of such compositions in foam drive processes of enhanced oil recovery. |
| 申请公布号 |
DE3474189(D1) |
申请公布日期 |
1988.10.27 |
| 申请号 |
DE19843474189 |
申请日期 |
1984.11.20 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
CRAVEN, SHEILA MAIRI;FERNLEY, GEORGE WILLIAM |
| 分类号 |
B01F17/08;B01F17/12;C07C67/00;C07C301/00;C07C309/02;C07C309/37;C09K8/592;(IPC1-7):E21B43/22;C11D1/37 |
主分类号 |
B01F17/08 |
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