发明名称 |
CONDUIT CLEANING MATERIAL AND PROCESS |
摘要 |
<p>Novel abrasive particles for cleaning conduits, particularly subterranean wellbores are described. The particles are rounded, preferably spherical, and have a hardness of 80 to 200 Vickers. The particles are preferably made of non-metallic material such as Calcite pellets. The new abrasives cause significantly less damage to the well tubulars than sand.</p> |
申请公布号 |
CA2289547(C) |
申请公布日期 |
2006.05.30 |
申请号 |
CA19982289547 |
申请日期 |
1998.04.28 |
申请人 |
SCHLUMBERGER CANADA LIMITED;JOHNSON, ASHLEY BERNARD |
发明人 |
JOHNSON, ASHLEY BERNARD |
分类号 |
E21B37/00;B08B7/02;C09K3/14;E21B37/06 |
主分类号 |
E21B37/00 |
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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