发明名称 |
Fluid drill-hole treatment agents based on polycarboxylic acid diesters |
摘要 |
Described is the use of oleophilic esters of ecologically compatible polycarboxylic acids with oil-soluble and ecologically compatible monofunctional alcohols and/or polyfunctional alcohols which may also be watersoluble as the oil phase or as a component of the oil phase of oil-based or water-based drilling fluids and other fluid drill-hole treatment agents. The oleophilic polycarboxylic acid esters are especially suitable as component of the continuous oil phase of inverted fluids of the W/O type. Here-if rheologically suitable compounds will be employed-they may comprise the at least predominant portion of the continuous oil phase; but also possible is the concomitant use of complex oleophilic polycarboxylic acid esters, which are not or just to a restricted degree fluid in a temperature range of from 0 DEG C. to 20 DEG C., as an additive in fluid oils of the class of the non-polluting oils. Here, suitable oil mixing phases especially are oleophilic alcohols, ethers, respective esters of monocarboxylic acids and fluid oils based on oleophilic carbonic acid diesters.
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申请公布号 |
US5441927(A) |
申请公布日期 |
1995.08.15 |
申请号 |
US19940336726 |
申请日期 |
1994.11.09 |
申请人 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN |
发明人 |
MUELLER, HEINZ;HEROLD, CLAUS-PETER;VON TAPAVICZA, STEPHAN;FUES, JOHANN F. |
分类号 |
C09K8/26;C09K8/34;(IPC1-7):C09K7/06;C09K7/02 |
主分类号 |
C09K8/26 |
代理机构 |
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