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【目的及方法】韩城矿区煤层压裂固相颗粒黏土含量高，在水力压裂过程中，黏土颗粒与外来流体接触后易发生膨胀和运移，进而影响煤层气采收效果。通过合成常规油气开采用环氧氯丙烷-二甲胺共聚物（ECH-DMA）季铵盐型阳离子聚合物，对活性水压裂体系进行优化，再通过室内评价试验，分别采用离心法和砂比法测试压裂液的防膨性能和悬砂性能。【结果及结论】结果表明，优化后的压裂液的耐水洗性能及悬砂性能明显提高，可降低黏土颗粒的膨胀和运移，且支撑剂的携带效果提高，提高煤层气的采收率。
Abstract：The coal seam fracturing operations in the Hancheng mining area are characterized by a high clay content in the solid particles. During the hydraulic fracturing process, these clay particles are prone to expansion and migration when they come into contact with external fluids, which in turn affects the effectiveness of coalbed methane recovery. To address this issue, we have optimized the active hydraulic fracturing system by synthesizing a quaternary ammonium salt cationic polymer, specifically the epichlorohydrin-dimethylamine copolymer(ECH-DMA), which is commonly used in conventional oil and gas extraction. We then conducted indoor evaluation tests to assess the anti-swelling performance and sand suspension capabilities of the fracturing fluid using both the centrifuge method and the sand ratio method, respectively. The results demonstrated that the optimized fracturing fluid exhibited significantly improved water wash resistance and sand suspension performance. It effectively reduced the expansion and migration of clay particles and improved the ability to carry proppant into the coal seams, thereby enhancing the recovery efficiency of coalbed methane.
[1]孙晗森.我国煤层气压裂技术发展现状与展望[J].中国海上油气，2021,33(4):120-128.
[2]涂志民.韩城PSC区块煤层气压裂工艺应用效果分析[J].煤炭工程，2017,49(2):62-64.
[3]魏迎春，曹代勇，袁远，等.韩城区块煤层气井产出煤粉特征及主控因素[J].煤炭学报，2013,38(8):1424-1429.
[4]XIAO S,LIN H N,PENG X F,et al. Preparation and performance evaluation of quaternary ammonium cationic clay stabilizer for oilfield use[J]. Journal of Physics:Conference Series,2023,2610(1):012057.
[5]王正良，肖传敏. PCM粘土稳定剂的合成及评价[J].精细石油化工进展，2003,4(8):36-38.
[6]祝成，马喜平，孙川，等.季铵盐型粘土稳定剂的制备与性能评价[J].精细石油化工进展，2010,11(4):13-15,27.
[7]尚蕴果，蒋守礼，狄亮.聚环氧氯丙烷-二甲胺粘土稳定剂合成及其防膨性能评价[J].广东化工，2010,37(9):60-62.
[8]黎黎.水基压裂液的悬砂性能对比[J].内蒙古石油化工，2011,37(21):51-53.
[9]刘通义，刘磊，孙贺东.压裂液在地层裂缝中悬砂特性的模拟试验研究[J].钻采工艺，2006,29(2):99-101.
[10]Energy-Oil and Gas Research; Investigators at Southwest Petroleum University Detail Findings in Oil and Gas Research(Investigation of OleateDiethylamine-Epichlorohydrin Copolymer as a Clay Swelling Inhibitor for Shale Oil/Gas Exploration)[J].Energy Weekly News,2018,437.
[11]杜涛，姚奕明，蒋廷学，等.可逆交联聚合物压裂液流变及悬砂性能研究[J].应用化工，2015,44(10):1788-1790,1795.
[12]于国彬.粘土稳定剂环氧氯丙烷：二甲胺共聚物合成的研究[J].化学工程与装备，2012,41(8):26-29.
[13]刘新新.铁盐/环氧氯丙烷-二甲胺共聚物复合高分子絮凝剂的研究[D].济南：山东大学，2014.
[14]尚蕴果.季铵盐型粘土稳定剂的合成研究及防膨性能评价[D].青岛：中国海洋大学，2009.
[15]张岚.小阳离子粘土稳定剂的研制及评价[J].化学与生物工程，2005,22(11):52-53.
[16]YANG X J,MAO J H,MAO J C,et al. The role of KCl in cationic Gemini viscoelastic surfactant based clean fracturing fluids[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2020,606:125510.
[17]尹剑宇，范振忠，刘庆旺，等.高阳离子度粘土稳定剂的合成与评价[J].化学工程师，2020,34(11):76-79.
[18]陈林皓.有机胺类粘土稳定剂的合成与评价[D].西安：西安石油大学，2021.
[19]马晓伟，杨俊.压裂体系用粘土稳定剂的复配及性能评价[J].中国石油和化工标准与质量，2013,33(20):50-51.
[20]TAO L, LI Z M, BI Y Q, et al. Multi-combination exploiting technique of ultra-heavy oil reservoirs with deep and thin layers in Shengli Oilfield[J]. Petroleum Exploration and Development, 2010, 37(6):732-736.
[21]唐瑭.一种高悬砂比低伤害压裂液研究[D].成都：西南石油大学，2018.
基本信息:
DOI：10.20120/j.cnki.issn.1671-749x.2026.0708
中图分类号:TE377
引用信息:
[1]刘己盛,徐智颢,贾浩强,等.韩城矿区煤层压裂用活性水压裂液的优化及悬砂性能研究[J].陕西煤炭,2026,45(07):51-55.DOI:10.20120/j.cnki.issn.1671-749x.2026.0708.
2026-06-16
2026-06-16