Southwest Petroleum University

Yao Bai Special Cement Technology Research and Development Co., Ltd.

Bibo Dai

Xiaowei Cheng

Chunmei Zhang

Xiaoyang Guo

Kaiqiang Liu

Ping Wang

Mingze Li

Jingxuan Cai

Jia Wang

Zheng Xi

Hao Xu

Song Yang

Baoyang Ke

A preparation method of the microcapsules for low-temperature well cementation to be used to control cement hydration heat includes: (S1) a shell material, and added into deionized water, then the resultant mixture being stirred in a thermostat water bath so as to completely dissolve it into a homogeneous and stable shell material solution; (S2) a core material and an emulsifier being put into a three-necked flask and stirred in a thermostat water bath so as to uniformly emulsify and disperse them, forming a stable oil-in-water core material emulsion, while adjusting the pH value of the emulsion with a pH adjuster; (S3) the three-necked flask containing the core material emulsion being transferred to a water bath, and then the shell material solution being dropwise added into it with stirring, after reacting, a solid-liquid mixture being poured out so as to naturally cool it to room temperature.

Preparation method of the microcapsules for low-temperature well cementation to be used to control cement hydration heat

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Chengdu, China

Bibo Dai