石油与天然气化工2024，Vol.53Issue(3)：73-78,6.DOI:10.3969/j.issn.1007-3426.2024.03.012
橡胶颗粒增强双网络结构堵水冻胶性能研究
Study on the properties of rubber particles reinforced double network structure gel
摘要
Abstract
Objective The performance of rubber particles reinforced double network structure gel was studied to solve the problem of frequent water and gas channeling in the process of water injection and gas injection in the fracture-vuggy reservoir represented by Tahe Oilfield.Methods Using acrylamide/2-acrylamide-2-methylpropanesulfonic acid binary polymer and hydrophobic association polymer as the main agents,urotropine,resorcinol,organic chromium as crosslinking agents,and rubber particles as reinforcing agents.The effects of rubber particles on the viscosity of the gel base liquid,gelling time,gelling strength,dilution resistance,temperature and salt resistance,and plugging effect were investigated in detail.Results The research results showed that the addition of nanoparticles had no significant effect on the viscosity and gelling time of the gel base liquid,but it significantly improved the gelling strength,temperature and salt resistance and blocking effect.Among them,5％of the rubber particles were enhanced.The yield stress of the gel reaches 326.4 Pa.After aging at 150 ℃ for 30 days,the dehydration rate was only 2.71％.When the fracture core with a crack width of 1 mm was blocked,the breakthrough pressure gradient of salt water reached 3.94 MPa/m.This indicated that the double network structure gel reinforced by rubber particles had excellent blocking ability.Conclusion This study fills the technical gap of high-temperature and high-salt water plugging gel in Tahe Oilfield.It provides new research ideas for development of water plugging technology in Tahe Oilfield.关键词
橡胶颗粒/冻胶/封堵/耐温耐盐Key words
rubber particles/gel/blocking/temperature and salt resistance引用本文复制引用
何世伟,靳永红,王磊,王犁,鲁红升..橡胶颗粒增强双网络结构堵水冻胶性能研究[J].石油与天然气化工,2024,53(3):73-78,6.基金项目
四川省科技厅重点研发项目"环保型抗高温抗盐小分子聚合物钻井液降滤失剂研发及应用"(2023YFG0105) （2023YFG0105）
油气藏地质及开发工程国家重点实验室开放基金"基于可逆交联的压驱一体化滑溜水压裂液研究"(PLN2022-48) （PLN2022-48）
油气田应用化学四川省重点实验室开放基金"油诱导增稠型离子液体表面活性剂的制备及其作为非均相驱油剂的应用初探"(YQKF202112) （YQKF202112）
