发明名称 |
SOLID-LIQUID SEPARATION OF OIL-BASED MUDS |
摘要 |
This invention relates to a method of achieving a solid-liquid separation of an oil-based mud comprising the step of contacting said oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, where the polymer is not dissolved prior to contact with the oil-based mud, mixing the water-in-oil emulsion and the oil-based mud and separating the solid phase from the liquid phase in the oil-based mud. In addition, this invention also relates to a composition comprising an oil-based mud with a water-in-oil emulsion comprising a polymer derived from at least one water-soluble monomer, wherein the polymer is not dissolved prior to contact with the oil-based mud. |
申请公布号 |
EP1673417(B1) |
申请公布日期 |
2016.02.24 |
申请号 |
EP20040778481 |
申请日期 |
2004.07.16 |
申请人 |
KEMIRA OYJ |
发明人 |
PENA, JORGE EDUARDO ADAMS;MASIAS, HENRY;HUANG, SUN-YI;FARINATO, RAYMOND |
分类号 |
C09K8/32;B01F17/52;C09K8/36;E21B21/06 |
主分类号 |
C09K8/32 |
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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