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:
May. 20, 2025
Filed:
Dec. 02, 2022
China National Petroleum Corporation, Beijing, CN;
Cnpc Engineering Technology R&d Company Limited, Beijing, CN;
Beijing Huamei Inc. Cnpc, Beijing, CN;
Jianzhou Jin, Beijing, CN;
Lili Chen, Beijing, CN;
Yuchao Guo, Beijing, CN;
Hua Zhang, Beijing, CN;
Fuchen Liu, Beijing, CN;
Yong Ma, Beijing, CN;
Yao Wang, Beijing, CN;
Xiaobing Zhang, Beijing, CN;
Jiaying Zhang, Beijing, CN;
Zishuai Liu, Beijing, CN;
Haizhi Zhang, Beijing, CN;
Pu Xu, Beijing, CN;
Youzhi Zheng, Beijing, CN;
Yongjin Yu, Beijing, CN;
Congfeng Qu, Beijing, CN;
Fengzhong Qi, Beijing, CN;
Yong Li, Beijing, CN;
Ming Xu, Beijing, CN;
Guifu Wang, Beijing, CN;
Shuoqiong Liu, Beijing, CN;
Chi Zhang, Beijing, CN;
Bin Lyu, Beijing, CN;
Chongfeng Zhou, Beijing, CN;
Zhiwei Ding, Beijing, CN;
Shunping Zhang, Beijing, CN;
Jiwei Jiang, Beijing, CN;
Qin Han, Beijing, CN;
Yusi Feng, Beijing, CN;
Chenyang Zhou, Beijing, CN;
Yiliu Sun, Beijing, CN;
Songbing Yan, Beijing, CN;
China National Petroleum Corporation, Beijing, CN;
CNPC Engineering Technology R&D Company Limited, Beijing, CN;
Beijing Huamei Inc. CNPC, Beijing, CN;
Abstract
An ultra-high temperature resistant cement slurry system comprising cement, an ultra-high temperature strength stabilizer, an ultra-high temperature reinforcing material, a density regulator, an ultra-high temperature suspension stabilizer, a dispersant, a fluid loss additive, a retarder, a defoaming agent and water, wherein the ultra-high temperature suspension stabilizer comprises an ether-based starch, an aluminosilicate and a polyalcohol polymer. The method for preparing the cement slurry system includes dry mixing and wet mixing raw materials homogeneously, respectively, and then homogeneously mixing the dry mix and wet mix to obtain the cement slurry system. The cement slurry system can be used for cementing in deep wells and ultra-deep wells at high and ultra-high temperatures.