摘要：To meet the increasing requirement of stabilizing shale under high-temperature situation with the use of water-based drilling fluids (WBDFs), the high-performance shale stabilizer is an urgent need. In this study, an amphoteric copolymer of AM/DMDAAC/NVP (APC) was synthesized by acrylamide (AM), dimethyl diallyl ammonium chloride (DMDAAC), and N-vinylpyrrolidone (NVP) and used as a high temperature-resistant shale stabilizer. The Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy confirmed the successful synthesis of APC. The inhibitive performance of APC was systematically evaluated and compared with three other commonly used shale stabilizers, including the anionic potassium polyacrylamide (KPAM), cationic poly dimethyl diallyl ammonium chloride (PD), and amphoteric polymer FA367. The results demonstrated that APC displayed excellent performance on the linear swelling test, hot-rolling recovery experiment, and shale immersion test. Furthermore, APC combined the advantages of high shale recovery percentages of PD and maintaining shale pellet integrity of KPAM, avoiding the drawbacks of enormous filtration volume of PD and low shale recovery percentages of KPAM. These great properties indicated that APC would be suitable as a shale stabilizer in WBDF to drill high-temperature shale formation.
© 2020 Wiley Periodicals, Inc.

ISSN号：0021-8995

卷、期、页：v 137,n 35,

发表日期：2020-09-15

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：Journal of Applied Polymer Science

参与作者：邓宇

通讯作者：王凯,李新亮

第一作者：蒋官澄,贺垠博,杨丽丽

论文类型：期刊论文

论文概要：蒋官澄,王凯,贺垠博,杨丽丽,李新亮,邓宇，Synthesis of an amphoteric polymer as a high-temperature-resistant shale stabilizer in water-based drilling fluids，Journal of Applied Polymer Science，2020，v 137,n 35,

论文题目：Synthesis of an amphoteric polymer as a high-temperature-resistant shale stabilizer in water-based drilling fluids