发明名称 |
METHOD FOR REMOVING ALKALINE EARTH METAL SCALE |
摘要 |
The present invention relates to a method of removing alkaline earth sulphate scale (22) from the interior surface of downhole production tubing (16) comprising contacting the scale (22) with a solvent having a specific gravity of at least 1.2 while simultaneously milling the scale (22) with a rotating mill head (20) connected to a downhole motor.
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申请公布号 |
CA2182091(A1) |
申请公布日期 |
1995.12.14 |
申请号 |
CA19952182091 |
申请日期 |
1995.01.13 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
PAUL, JAMES MARK |
分类号 |
C09K8/528;E21B37/00;E21B37/02;E21B37/06;(IPC1-7):B08B7/00;B08B3/00;B08B9/00 |
主分类号 |
C09K8/528 |
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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