煤系伴生资源—油页岩原位注蒸汽开采油气的技术基础研究

项目名称： 煤系伴生资源—油页岩原位注蒸汽开采油气的技术基础研究

项目编号： No.U1261102

项目类型： 联合基金项目

立项/批准年度： 2013

项目学科： 冶金与矿业学科

项目作者： 康志勤

作者单位： 太原理工大学

项目金额： 60万元

中文摘要： 随着全球石油资源的日益短缺，利用过热水蒸汽对煤系伴生资源——油页岩进行原位开发具有重要的实际意义，而国内外目前还缺少系统研究，尤其是对其所涉及的基础物性及理论的研究。本项目通过实验研究与理论分析相结合，揭示油页岩在过热水蒸汽加热条件下油、气的产出机理；研究油页岩的力学特性随温度的变化规律、门槛值温度及其演化机理；研究油页岩在原位热解过程中不同温度、流体压力、地应力作用下地层渗透率的变化规律；研究注蒸汽开采“与薄煤互层油页岩矿床”的技术实施方案，并建立在该类地层中进行水力压裂形成水平裂缝的起裂、扩展与连通的条件与控制理论；根据岩石力学、渗流力学、传热学、物理化学、热解动力学的基本理论，建立油页岩原位注蒸汽开发的固—流—热—化学耦合模型，并进行数值模拟，获得最佳工艺参数，无疑对指导我国煤系伴生资源——油页岩矿床以及薄煤层的联合洁净开发提供了重要的理论依据和工程参考。

中文关键词： 油页岩；过热蒸汽；力学特性；渗透特性；理论研究

英文摘要： With global oil shortage, using superheated steam to coal associated resources--oil shale in-situ development has important practical significance, and domestic and foreign present still lack systematic research, especially on the basis of physical and theoretical research. This project combines the experimental study and theoretical analysis, revealing the oil and gas output mechanism under the condition of oil shale in the superheated steam heating, studying on the mechanical property of oil shale with temperature variations, threshold values of temperature and its evolution mechanism, studying on the permeability variation rule in the oil shale stratum in-situ pyrolysis process under different temperature, fluid pressure and ground stress, studying on the steam injection "oil shale deposits interbedded with thin coal" technology implementations, and build on the horizontal fracture′s expansion and connectivity and control theory by hydraulic fracturing. According to rock mechanics, fluid mechanics, heat transfer, physical chemistry, pyrolysis kinetics of basic theory, establish oil shale in-situ steam injection development of solid-flow-heat-chemical coupling model, and carry out numerical simulation, obtained the optimum technological parameters, undoubtedly to guide China''s coal associated resources--oil s

英文关键词： oil shale；superheated steam；mechanical properties；permeability law；theory research