METHOD AND APPARATUS FOR FORMATION DAMAGE REMOVAL |
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| 申请号 | PCT/CA0101082 | 申请日 | 2001-07-26 | 公开(公告)号 | WO0210546A2 | 公开(公告)日 | 2002-02-07 |
| 申请人 | SASK DAVID; | 发明人 | SASK DAVID; | ||||
| 摘要 | A method of treating an underground formation that has been penetrated by a well, the well having a wellbore. The method comprising the steps of lowering a valve into the well until the valve is adjacent the formation with the valve being placed to control flow of fluid between the formation and the wellbore, establishing a pressure differential across the valve; and selectively and repeatedly opening and closing the valve to cause cyclical pressure variation in the formation and induce surges of fluid from the formation into the wellbore. Apparatus for carrying out the method is also disclosed. A method of operating a downhole valve is also disclosed. A method of formation evaluation is also disclosed. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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