发明名称 |
Methods and additives for delaying the release of chemicals in aqueous fluids |
摘要 |
Methods and additives are provided for bringing about the delayed release of a chemical such as a gel breaker or demulsifier in an aqueous fluid. The additives are pelletized solids comprised of the chemical to be released, a hydratable gelling agent and a breaker for the gel produced by the gelling agent when hydrated.
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申请公布号 |
US4202795(A) |
申请公布日期 |
1980.05.13 |
申请号 |
US19780946471 |
申请日期 |
1978.09.28 |
申请人 |
HALLIBURTON |
发明人 |
BRISCOE, JAMES E;BURNHAM, JOHN W;ELPHINGSTONE, EUGENE A |
分类号 |
B01D17/04;C09K8/90;C09K8/92;C10G33/04;E21B43/25;(IPC1-7):B01D17/04 |
主分类号 |
B01D17/04 |
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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