发明授权
- 专利标题： Equivalent circulating density control in deep water drilling
- 专利标题（中）： 深水钻井等效循环密度控制
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申请号： US13153436申请日： 2011-06-05
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公开(公告)号： US08138125B2公开(公告)日： 2012-03-20
- 发明人: David Dino
- 申请人： David Dino
- 申请人地址： US NJ Hightstown
- 专利权人： Elementis Specialties, Inc.
- 当前专利权人： Elementis Specialties, Inc.
- 当前专利权人地址： US NJ Hightstown
- 代理机构： Morgan, Lewis & Bockius LLP
- 主分类号： C09K8/28
- IPC分类号： C09K8/28 ; C09K8/22 ; C07C231/00
摘要：
A method of providing a substantially constant rheological profile of a drilling fluid over a temperature range of about 120° F. to about 40° F. includes adding a drilling fluid additive to the drilling fluid, wherein the drilling fluid additive includes the reaction product of a carboxylic acid with at least two carboxylic moieties; and a polyamine having an amine functionality of two or more. A composition, such as an oil based drilling fluid, includes the reaction product of a carboxylic acid with at least two carboxylic moieties and a polyamine having an amine functionality of two or more.
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