Patent number: 11926787
Abstract: A well cementing method is described for improving cementing quality by controlling the hydration heat of cement slurry. By controlling the degree and/or rate of hydration heat release from cement slurry, the method improves the hydration heat release during formation of cement with curing of cement slurry, improves the binding quality between the cement and the interfaces, and in turn improves the cementing quality at the open hole section and/or the overlap section. The cementing method improves cementing quality of oil and gas wells and reduces the risk of annular pressure.
Type:
Grant
Filed:
April 21, 2020
Date of Patent:
March 12, 2024
Assignees:
PetroChina Company Limited, CNPC Engineering Technology R&D Company Limited
Inventors:
Shuoqiong Liu, Hua Zhang, Jianzhou Jin, Ming Xu, Yongjin Yu, Fengzhong Qi, Congfeng Qu, Hong Yue, Youcheng Zheng, Wei Li, Yong Ma, Youzhi Zheng, Zhao Huang, Jinping Yuan, Zhiwei Ding, Chongfeng Zhou, Chi Zhang, Zishuai Liu, Hongfei Ji, Yuchao Guo, Xiujian Xia, Yong Li, Jiyun Shen, Huiting Liu, Yusi Feng, Bin Lyu
Publication number: 20230416252
Abstract: The present application generally relates to several processes for the preparation of (6R,10S)-10-{4-[5-chloro-2-(4-chloro-1H-1,2,3-triazol-1-yl)phenyl]-6-oxo-1(6H)-pyrimidinyl}-1-(difluoromethyl)-6-methyl-1,4,7,8,9,10-hexahydro-11,15-(metheno)pyrazolo[4,3-b][1,7]diazacyclotetradecin-5(6H)-one: Compound (I).
Type:
Application
Filed:
October 11, 2021
Publication date:
December 28, 2023
Inventors:
Subha MUKHERJEE, William P. GALLAGHER, Christopher Robert JAMISON, Carolyn S. WEI, Sergei KOLOTUCHIN, Amarjit SINGH, Nicolas CUNIERE, Chris SFOUGGATAKIS, Adrian ORTIZ, Steven R. WISNIEWSKI, Bin ZHENG, Helen Y. LUO, Sébastien François Emmanuel LEMAIRE, Cyril BEN HAÏM, Kostiantyn CHERNICHENKO, Diego Fernando Domenico BROGGINI, Simon Albert WAGSCHAL, Duy Chi Trung CAO, Karl REUTER, Björn SCHMALZBAUER, Philipp KOSCHKER, Martin D. EASTGATE, Dimitri SKLIAR, Alexander ZHDANKO, Christos XIOURAS, Matthew Penfield MOWER, Ngoc Duc TRAN, Ramdane RAHMANI, Xavier Jean-Marie JUSSEAU, Kiran MATCHA, Luca Alessandro PEREGO