首页> 外国专利> APROCESS FOR THE PREPARATION OF CHROME LIGNITE FOR MAINTAINING RHEOLOGICAL PROPERTIES OF WATER BASED OIL WELL DRILLING FLUIDS IN HIGH TEMPERATURE AND HIGH PRESSURE OIL WELL DRILLING

APROCESS FOR THE PREPARATION OF CHROME LIGNITE FOR MAINTAINING RHEOLOGICAL PROPERTIES OF WATER BASED OIL WELL DRILLING FLUIDS IN HIGH TEMPERATURE AND HIGH PRESSURE OIL WELL DRILLING

机译:维持高温高压油井水基油井钻井液流变特性的铬铁矿制备方法

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