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:
Aug. 19, 2025
Filed:
Jun. 30, 2022
China National Petroleum Corporation, Beijing, CN;
Cnpc Engineering Technology R&d Company Limited, Beijing, CN;
Jianzhou Jin, Beijing, CN;
Yuchao Guo, Beijing, CN;
Hong Yue, Chengdu, CN;
Youcheng Zheng, Chengdu, CN;
Hua Zhang, Beijing, CN;
Lili Chen, Chengdu, CN;
Shuoqiong Liu, Beijing, CN;
Wei Li, Chengdu, CN;
Yong Ma, Chengdu, CN;
Feng Zhou, Chengdu, CN;
Chengquan Li, Chengdu, CN;
Yao Wang, Chengdu, CN;
Yongjin Yu, Beijing, CN;
Congfeng Qu, Beijing, CN;
Fengzhong Qi, Beijing, CN;
Yong Li, Beijing, CN;
Youzhi Zheng, Chengdu, CN;
Jianhua Guo, Chengdu, CN;
Ming Xu, Beijing, CN;
Zhaohui Wang, Beijing, CN;
Chi Zhang, Beijing, CN;
Zishuai Liu, Beijing, CN;
Xiaobing Zhang, Beijing, CN;
Hongfei Ji, Beijing, CN;
Shunping Zhang, Beijing, CN;
Rui Zheng, Beijing, CN;
China National Petroleum Corporation, Beijing, CN;
CNPC Engineering Technology R&D Company Limited, Beijing, CN;
Abstract
The present disclosure relates to the technical field of oil and gas field exploitation, in particular to an early strength material suitable for a cement slurry system, a cement slurry composition, a cement slurry system, a preparation method therefor and the use thereof. The early strength material contains an aluminum salt, a sodium salt, crystal whiskers, an inorganic mineral and dispersing agent I, wherein the weight ratio of the aluminum salt, the sodium salt, the crystal whiskers, the inorganic mineral and dispersing agent I is (1-3):(1-3):(1-4):(1-8):1. The early strength material provided by the present invention has both high-temperature retarding performance and low-temperature early strength performance; meanwhile, while satisfying well cementing, the cement slurry system prepared from the cement slurry composition containing the early strength material can prolong thickening time of cement slurry under a high-temperature condition, can prevent ultra-retarding of top cement slurry under a low-temperature condition and has increased early strength.