发明名称 |
PARTICLE-LOADED WASH FOR WELL CLEANUP |
摘要 |
<p>The invention consists in loading a chemical wash fluid with solid particles to enhance annulus cleanup prior to placing cement slurries (or during the completion phase). The presence of solid particles in a low-viscosity fluid will induce an abrasive cleanup of all soft material present in the annulus in particular gelled mud and mud cake. There is no need for special hardware and no harm to metallic parts. The particles have a size of at least 100 microns and a density ranging from 0,1 to 2g/cm3.</p> |
申请公布号 |
WO2010043295(A1) |
申请公布日期 |
2010.04.22 |
申请号 |
WO2009EP06739 |
申请日期 |
2009.09.08 |
申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;DACCORD, GERARD |
发明人 |
DACCORD, GERARD |
分类号 |
E21B37/00;C09K8/52 |
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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