发明名称 |
RHEOLOGICAL AGENT, PREPARATION METHODS AND USES THEREOF |
摘要 |
<p>The present invention relates to a method to prepare a rheological agent comprising the polymerization of the following monomers: (a) at least one styrene-based monomer, (b) at least one (meth)acrylate-based monomer or butadiene, and (c) optionally a copolymerisable surfactant containing an optionally substituted vinyl function and moieties derived from propylene oxide and/or ethylene oxide, optionally in the presence of a non polymerisable surfactant containing moieties derived from propylene oxide and/or ethylene oxide, and optionally in the presence of another surfactant, wherein at least the copolymerisable surfactant or the non polymerisable surfactant is present during the said polymerization, as well as a rheological agent obtainable by said method, an oil-based drilling fluid containing such a rheological agent, the use of such a rheological agent as a thixotropic agent in an oil-based drilling fluid and a method of drilling using an oil-based drilling fluid containing such a rheological agent.</p> |
申请公布号 |
WO2014009765(A1) |
申请公布日期 |
2014.01.16 |
申请号 |
WO2012IB01690 |
申请日期 |
2012.07.11 |
申请人 |
OMNOVA SOLUTIONS;MAZARD, CECILE;DRILLIERES, SOPHIE;BARETTE, AURELIE;VONGPHOUTHONE, PATRICK;GUICHARD, BERTRAND |
发明人 |
MAZARD, CECILE;DRILLIERES, SOPHIE;BARETTE, AURELIE;VONGPHOUTHONE, PATRICK;GUICHARD, BERTRAND |
分类号 |
C08F212/12;C08F216/14;C08F220/12;C09K8/12 |
主分类号 |
C08F212/12 |
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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