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通过测量粉碎后的储层岩石在不同电解质溶液中及用各种酸化液处理后在水中的粒度分布变化规律,研究了水敏和酸敏中微粒释放趋势。对两种砂岩样的研究结果表明,各种无机和有机电解质对地层微粒释放趋势的抑制作用同岩石成分密切相关,用盐酸和土酸处理砂岩岩样后未见到微粒释放有增加的趋势。
By measuring the variation of particle size distribution in crushed groundwater in different electrolyte solutions and using various acidified solutions, the release trends of water-sensitive and acid-sensing microparticles were studied. The results of two kinds of sandstone samples show that the inhibitory effect of various inorganic and organic electrolytes on the release tendency of the formation microparticles is closely related to the rock composition. No release of microparticles has been observed after the sandstone samples were treated with hydrochloric acid and tungstic acid.