【作者】 王锦山；

【导师】 梁冰；

【作者基本信息】 辽宁工程技术大学 ， 工程力学， 2001， 硕士

【摘要】 煤层气这种洁净的新能源，己经开始被人们作为一种矿藏资源来进行开发利用。但是，目前煤层气的开采只是处于工业试验阶段，其开采方法、技术及理论基础还没有形成与完善，开采工业刚刚起步。 本文从煤层气开发利用的需求出发，应用渗流力学、水文地质学和流体力学等多学科交叉理论，分析了储气煤层中水和煤层气的赋存状态及影响渗透的因素，探讨了水一气两相流在煤层中的运移规律，建立了两相流相互作用的数学模型，对两相流在煤中的相对渗透率和煤层气在水中的溶解度进行了试验研究，找出了它们的规律，最后指出了地下水对煤层气赋存及运移规律的作用和影响，为煤层气开采技术提供了理论基础。更多还原

【Abstract】 Coal-bed methane, being a clean and new energy source, has beenexploited as one of the mineral resources. But at present its extraction isin the phase of industrial test and its extraction method, technique andtheory haven’t been formed and perfected. So its extraction industry hasjust begun.In the paper, from the requirement of the exploitation of coal-bedmethane and using crossed theory of many subjects such as osmoticmechanics, hydrogeology and fluid mechanics, the existing state of waterand coal-bed methane and the factors affecting the permeability areanalysed. In addition, the transfer rule of water-gas two-phase flow in theseam is discussed, building the mathematical model of action relation,meanwhile the test research into two-phase flow’s relative permeability incoal and the solubility of coal-bed methane in water has been done andtheir rule is found. In the end the paper points out the action and influenceof ground water on the existence of coal-bed methane and transfer rule.Therefore the paper offers the theoretical basis for the extractiontechnique of coal-bed methane.更多还原