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页岩气开采模拟实验方法研究 预览

Research on Simulation Experiment Method of Shale Gas Production
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摘要 为提高对页岩气特有的赋存状态和产气规律的认识水平,利用自主研发的模拟实验装置,采用天然页岩储层岩心和甲烷气开展了气体流动能力、气井生产动态和全生命周期生产模拟实验。实验结果表明,研发的模拟实验装置和配套技术具有高压力、超长周期、多点测压等特点,能够较真实模拟页岩储层条件下的页岩气流动过程,初步揭示了扩散是主要的传质输运机理、页岩基质压力传播较慢、生产初期主要产出游离气、后期吸附气开始供给等页岩气的传质输运机理和衰竭开发规律,从而为页岩气开发技术政策制定提供了实验依据。 In order to improve the understanding of unique state of occurrence of shale gas and gas production law of shale gas, natural gas shale cores and methane were used to carry out gas flow capacity, gas well production dynamics and full life cycle production simulation experiments by using a self-developed simulation experimental device. The experimental results show that the developed experimental equipment and supporting technology have the characteristics of high pressure, long period and multiple measuring points. It can simulate the flow process of shale gas under shale reservoir conditions and preliminarily reveals the shale gas mass transfer mechanism and exhaustion development law. Such as diffusion is the main mass transfer mechanism, the shale matrix pressure propagation is slow, the main production of free gas in the early stage of production, the adsorption gas supply in the later stage and etc. It provides experimental basis for the development of technical policy for shale gas.
作者 端祥刚 胡志明 彭辉 李武广 常进 刘华勋 沈瑞 Duan Xianggang;Hu Zhiming;Peng Hui;Li Wuguang;Chang Jin;Liu Huaxun;Shen Rui(PetroChina Research Institute of Petroleum Exploration and Development, Langfang, Hebei, 065007, China;PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan, 610041, China;Shale Gas Research Institute, PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan, 610041, China)
出处 《天然气与石油》 2019年第2期73-78,共6页 Natural Gas and Oil
基金 国家科技重大专项“页岩气渗流规律与气藏工程方法”(2017ZX05037-001) 中石油重大科技专项“四川盆地页岩气建产有利区评价优选及开发技术政策优化研究与应用”(2016E-0611).
关键词 页岩 开发 实验 产气量 递减规律 Shale Development Experiment Gas production Diminishing law
作者简介 端祥刚(1987-),男,安徽宿州人,工程师,博士,主要从事非常规油气渗流、页岩气渗流机理相关研究。
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