作者: Daniel L. Bour , Edward F. Vinson
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摘要: Set retarded cement compositions which are substantially non-thinning at high temperatures provided. The comprised of hydraulic cement, sufficient water to form a pumpable slurry, set retarder and galactomannan gum has been treated with hydrophobing agent whereby the hydration rate is below about 120° F. pH levels above 10. delayed offsets thinning Methods cementing subterranean zones penetrated by well bores utilizing also