发明名称 |
Method of making an anti-bit balling well fluid using a polyol having a cloud point, and method of drilling |
摘要 |
<p>A method of making a well fluid for use in a well which includes the steps of determining uphole and downhole operating temperatures in the well, and then contacting a well lubricant with a lubricating additive, wherein the lubricating additive has a cloud point temperature greater than the uphole operating temperature and less than the downhole operating temperature. A method of lubricating drilling equipment during operation of a subterranean well, includes the steps of determining uphole and downhole operating temperatures in the well, and then contacting the drilling equipment with a treating fluid comprising a well lubricant and a lubricating additive, with the lubricating additive having a cloud point temperature greater than the uphole operating temperature and less than the downhole operating temperature.</p> |
申请公布号 |
GB2317633(A) |
申请公布日期 |
1998.04.01 |
申请号 |
GB19970025899 |
申请日期 |
1996.06.04 |
申请人 |
* BAKER HUGHES INCORPORATED |
发明人 |
DAVID E * CLARK;WILLIAM E * DYE |
分类号 |
C09K8/32;E21B21/00;E21B47/00;(IPC1-7):C09K7/02 |
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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