Preformed Particle Gel for Conformance Control: Factors Affecting Its Properties and Applications

By Baojun Bai, Liangxiong Li, Yuzhang Liu, He Liu, Zhongguo Wang, Chun-Mei You. 2007

335 citations recorded by the source corpus.

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Preformed Particle Gel for Conformance Control: Transport Mechanism Through Porous Media (2007, methodology): “The detailed synthesis procedure was reported in our other paper (Bai et al. 2004).”
A comprehensive review of polyacrylamide polymer gels for conformance control (2015, positive): “2 毫米级或微米级颗粒——预交联凝胶颗粒中国石油勘探开发研究院在 1996年首先提出了采用预交联凝胶颗粒(PPG)进行深部调剖的技术。PPG 由丙烯酰胺单体或其他单体和亚甲基双丙烯酰胺交联剂聚合而成,然后进行干燥、粉碎筛选等形成具有不同粒径的颗粒。合成的凝胶颗粒强度可控、无毒无害, 对地层水矿化度和储集层矿物不敏感。膨胀后的 PPG 以(2 000~8 000)×10的浓度注入油藏并进入裂缝和似裂缝类的通道。Coste等([31-32])运用玻璃微观模型研究了 PPG的运移模式,发现该凝胶颗粒通过大孔喉的过程有 3 种主要机制:颗粒变形、颗粒脱水收缩和颗粒破碎。Bai 等([3”
Classification, processing and application of hydrogels: A review. (2015, background): “Excess water production is a frequent problem that occurs in advanced reservoirs as a result of long-term water flooding, which usually results in increased levels of corrosion and scale, increased environmental concerns, and ultimately leads to early shut-in of the wells that still contain signific”