Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof
US12305116B2 · kind B2 · utility
Assignees
Inventors
- Jianzhou Jin
- Lili Chen
- Yuchao Guo
- Hua Zhang
- Fuchen Liu
- Yong Ma
- Yao-Tung Wang
- Xiaobing Zhang
- Jiaying Zhang
- Zishuai Liu
- Haizhi Zhang
- Pu Xu
- Youzhi Zheng
- Yongjin Yu
- Congfeng Qu
- Fengzhong Qi
- Yong Li
- Ming Xu
- Guifu Wang
- Shuoqiong Liu
- Chi Zhang
- Bin Lyu
- Chongfeng Zhou
- Zhiwei Ding
- Shunping Zhang
- Jiwei Jiang
- Qin Han
- Yusi Feng
- Chenyang Zhou
- Yiliu Sun
Key dates
| Filing date | Dec 2, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Dec 2, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.