摘要：Gel-based plugging materials have become commonplace in addressing lost circulation wells. However, traditional gels are associated with challenges such as difficulties in injection, irreversible structural damage under high shear stress, poor retention capacity within leakage channels, resulting in diminished pressure-bearing capabilities, subpar sealing efficacy, and prolonged non-production periods. In this study, a plugging gel, denoted as YSL, was synthesized via free-radical aqueous solution polymerization using AM, hydrophobic monomer SMA, and TA as raw materials, with KA and LAP as inorganic additives. The physicochemical properties were characterized using FT-IR, TGA, and SEM. Additionally, the rheological properties, thixotropic behavior, viscoelasticity, adhesion performance, and plugging performance of the YSL gel were systematically investigated. The results indicate that increasing the hydrophobic monomer and inorganic clay particles can enhance the viscosity, thixotropic ability, and storage modulus of the gel, although excessive non-covalent interactions diminish the adhesion capability of TA in the gel. Compared to commercial polymer gels and bridging plugging materials, YSL exhibits superior pressure-bearing plugging capability. Additionally, plugging mechanism of the gel in leakage channels was analyzed. The findings suggest significant potential applications of YSL in drilling leakage prevention and plugging in the oil and gas industry. ? 2024

ISSN号：0016-2361

卷、期、页：卷371子辑B

发表日期：2024-09-01

影响因子：6.500000

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Fuel

通讯作者：郭春萍,管金田,黄胜铭,郭友

第一作者：蒋官澄,贺垠博,杨丽丽,董腾飞

论文类型：期刊论文

论文概要：郭春萍,蒋官澄,管金田,黄胜铭,郭友,贺垠博,杨丽丽,董腾飞，Preparation and performance evaluation of a thixotropic polymer gel for loss circulation control，Fuel，2024，卷371子辑B

论文题目：Preparation and performance evaluation of a thixotropic polymer gel for loss circulation control