Synthesis and performance evaluation of a hybrid cross-linked plugging agent

被引：0

作者：

Bai Y. ^{[1
]}

Zhang Q. ^{[1
]}

Sun J. ^{[1
,2
]}

Lü K. ^{[1
]}

Wang R. ^{[2
]}

Xu C. ^{[3
]}

Hao H. ^{[2
]}

Liu F. ^{[4
]}

Wang J. ^{[1
]}

机构：

[1] School of Petroleum Engineering in China University of Petroleum (East China), Qingdao

[2] CNPC Engineering Technology R&D Company Limited, Beijing

[3] School of Petroleum Engineering in Southwest Petroleum University, Chengdu

[4] PetroChina Tarim Oilfield Company, Korla

来源：

Sun, Jinsheng (sunjsdri@cnpc.com.cn) | 1600年 / University of Petroleum, China卷 / 45期

关键词：

Gel plugging agent; Hybrid cross-linking; Plugging performance; Rheological properties; Synthesis mechanism;

D O I：

10.3969/j.issn.1673-5005.2021.04.022

中图分类号：

学科分类号：

摘要：

In terms of the poor high temperature resistance and mechanical properties of conventional chemical gel plugging agent, a hybrid cross-linked composite gel material was synthesized. In the gelpreparation the γ-methacryloxypropyltrimethoxysilane (MPTMS) was the silicon source, the Laponite was the toughening agent and inorganic crosslinking agent, a self-synthesized reactive micro-gel BWL was used as the organic crosslinking agent, acrylamide (AM) and methacrylic acid (MAA) were selected as the monomers. Several physical properties of the gel were investigated, such as the viscoelasticity, the reinforced temperature resistance of SiO2, and the reinforced mechanical properties of Laponite. The results show that, the hybrid cross-linked composite gel has a triple cross-linked network structure compared with conventional gels, which can maintain a high storage modulus and loss modulus, good tensile and compression resistance after aging at 140℃. When the 2% gel particles with the size of 0.25-0.38 mm, 0.38-0.83 mm and 0.83-1.70 mm, it meets the pressure-bearing plugging needs for high permeable and fractured formations with drilling fluid lost circulation. © 2021, Editorial Office of Journal of China University of Petroleum(Edition of Natural Science). All right reserved.

引用

页码：176 / 184

页数：8

共 14 条

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