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Fluid loss additives for oil base muds and low fluid loss compositions thereof
Fluid loss additives for oil base muds and low fluid loss compositions thereof
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机译:用于油基泥浆的滤失添加剂及其低滤失组合物
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摘要
A novel ammonium salt of quebracho prepared by reacting quebracho with alkyl quaternary ammonium salts is an effective fluid loss control agent when used in oil base drilling fluids for use in drilling oil and gas wells, especially in water in oil emulsion drilling mud formulations, controlling filtrate loss of the oil-base mud under high temperature and high pressure conditions.
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