配方类型：	MISCELLANEOUS
配方说明：	Drilling Fluid for High-Temperature Wells (U.S. Patent 2,691,630)
配方组成：	Water/To make 1 bbl. Quebracho/2 lb. Sodium Hydroxide/1.5 lb. Commercial Lignin/2 lb. Bentonite/5 lb. Starch/8 lb. Lime/7 lb. Petroleum/15% by volume Barite/500 lb.

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