The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2023
Filed:
May. 20, 2022
Southwest Petroleum University, Chengdu, CN;
Yao Bai Special Cement Technology Research and Development Co., Ltd., Xi'an, CN;
Chunmei Zhang, Chengdu, CN;
Jingxuan Cai, Chengdu, CN;
Jia Wang, Chengdu, CN;
Xiaowei Cheng, Chengdu, CN;
Kaiqiang Liu, Chengdu, CN;
Ping Wang, Chengdu, CN;
Hao Xu, Chengdu, CN;
Bibo Dai, Chengdu, CN;
Baoyang Ke, Chengdu, CN;
Xiaoyang Guo, Chengdu, CN;
Mingze Li, Chengdu, CN;
Song Yang, Chengdu, CN;
Zheng Xi, Chengdu, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
YAO BAI SPECIAL CEMENT TECHNOLOGY RESEARCH AND DEVELOPMENT CO., LTD., Xi'an, CN;
Abstract
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.