首页>
外国专利>
COMPOSITIONS FOR DRILLING FLUIDS USEFUL TO PROVIDE FLAT TEMPERATURE RHEOLOGY TO SUCH FLUIDS OVER A WIDE TEMPERATURE RANGE AND DRILLING FLUIDS CONTAINING SUCH COMPOSITIONS
COMPOSITIONS FOR DRILLING FLUIDS USEFUL TO PROVIDE FLAT TEMPERATURE RHEOLOGY TO SUCH FLUIDS OVER A WIDE TEMPERATURE RANGE AND DRILLING FLUIDS CONTAINING SUCH COMPOSITIONS
展开▼
机译:用于在宽温度范围内提供平板温度流变性以提供此类流体的钻井液和包含此类成分的钻井液的组合物
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention is of oil-based drilling fluids including invert emulsion fluids that are able to maintain a relatively consistent Theological profile over a wide temperature range. The invention also includes new additives that enabl e the preparation of drilling fluids with viscosities that are less affected b y temperature over a temperature range from less than about 40.degree.F to mor e than about 250.degree.F compared to conventional fluids. These additives are base d on reaction products of polyamines and carboxylic acids with two or more carboxylic moieties combined with alkoxylated amines and fatty acid amides. In addition , this invention permits the use of reduced amounts of organoclay Theological additives in drilling fluids.
展开▼