
第44卷第5期 2017年10月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
程波.含瓦斯煤渗流模型的研究现状及发展方向[J].矿业安全与环保,2017,44(5):93-97.
文章编号:10084495(2017)05009305 问题探讨与综述
含瓦斯煤渗流模型的研究现状及发展方向
程波1,2
(1.瓦斯突害监控与应急技术国家重点实验室,重庆400037;
2.中煤科工集团重庆研究院有限公司,重庆400037)
Vol. 44 No. 5 Oct. 2017
摘要:针对含瓦斯煤渗流模型的研究,是科学制订矿井瓦斯抽采作业规划或煤层气开发部署方案的理论依据。对含瓦斯煤渗流模型的研究成果进行了系统的梳理,并就相关理论的适用性进行了详组的分析。结合当前我国煤炭行业的发展趋势,指出了含瓦斯煤渗流模型研究的发展方向:①考虑“吸附解吸退滞现象”的瓦斯扩改模型研究:(2煤自身孔原、裂欧结构与非线性渗流模型中各关键参数之间关联的微观作用机制研究;③基于非线性渗流一扩散与多物理场耦合作用影响的含瓦斯煤渗流模型研究。
关键词:瓦斯;煤;非线性渗流;渗流模型;研究方向
中图分类号:TD712+.61
文献标志码:A
网络出版时间:2017-10-0917:11
网络出版地址:http://kns.cnki.net/kcms/detail/50.1062.TD.20171009.1711.048.html
Research Status and Development Direction of Gas-containing Coal Seepage Model
CHENG Bo*.2
(I. State Key Laboralory of Gas Disaster Monitoring and Emergency Technology , Chongqing 400037, China ; 2. China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing 400037, China )
Abstract : The study of gascontaining coal seepage model is the theoritical basis for sicientificly drawing up the mine gas drainage operation plan and the coalbed methane exploitation and deployment scheme. In this paper, the research results on the gascontaining coal seepage model were systematically sorted out and the applicability of the relevant theory was analyzed in detail. Based on the current development trend of China' s coal industry, the research and development direction of the gas-containing coal seepage model was pointed out that: ① the study on the gas diffusion model having the " adsorption and desorption hysteresis phenomenon" should be taken into consideration; (2) study should be made on the microscopic mechanism between the key parameters of the coal pore, the fracture
e structure and the nonlinear seepage model; @ study should be made
on the gascontaining coal seepage model based on the influence of the nonlinear seepagedifusion and the multiphysical field coupling
Keywords : gas; coal; nonlinear seepage; seepage model; development direction
瓦斯(又称"煤层气")是煤矿安全生产的“第杀手”,是指赋存在煤层中以甲烷为主要成分、以吸
收稿日期:201703-19;2017-04-28修订
基金项目:“十三五"国家科技重大专项项目(2016ZX05067004004)
作者简介:程凌(1985一),男,四川崇州人,工学硕士,工程师,主要从事煤矿区煤层气开发及瓦斯灾害治理技术的
研究工作。Email:cumtchengho@163,com。万方数据
附在煤基质颗粒表面为主、部分游离于煤孔隙中或溶解于煤层水中的烃类气体,是煤的伴生矿产资源,属非常规天然气。瓦斯抽采是煤矿实施瓦斯灾害治理的主要措施,同时也是进行煤层气开发的主要手段。近年来,随着煤矿瓦斯先抽后采、抽采达标,煤与瓦斯协调开发的强力推进,我国煤矿瓦斯灾害的防治能力明显提高,煤矿瓦斯抽采量迅速上升。但当前我国煤层气开发产业发展存在不可忽略的现
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