发明名称 |
Use of potassium hydroxide solutions in a well bore |
摘要 |
A workover fluid, a kill fluid, or completion fluid having potassium hydroxide dissolved therein is injected into a well bore penetrating and communicating with a subterranean sandstone formation containing water-sensitive fine particles, including clays, and invades the sandstone formation. Potassium hydroxide contacts and stabilizes the fine particles for a substantial period of time thereby substantially preventing formation permeability damage caused by encroachment of aqueous solutions having a distinct and undesired ionic constituency.
|
申请公布号 |
US4284140(A) |
申请公布日期 |
1981.08.18 |
申请号 |
US19800164620 |
申请日期 |
1980.06.30 |
申请人 |
MARATHON OIL CO. |
发明人 |
SYDANSK, ROBERT D.;CORDINER, FRANK S. |
分类号 |
C09K8/03;C09K8/84;(IPC1-7):E21B33/16;E21B43/22;E21B37/00 |
主分类号 |
C09K8/03 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|