沁水盆地中煤阶煤层气储层特征研究Studyon-BowenPublishing.PDFVIP

December 2013, Volume 2, Issue 4, PP. 107-111 Energy Development Frontier 沁水盆地中煤阶煤层气储层特征研究 刘军 1,2,3 ，易丹 1,2,3 1 国土资源部页岩气资源勘查重点实验室（重庆地质矿产研究院），重庆，400042 2 重庆市页岩气资源与勘查工程技术研究中心（重庆地质矿产研究院），重庆，400042 3 油气资源与探测国家重点实验室重庆页岩气研究中心，重庆，400042 摘要：煤层气储层特征研究对煤层气勘探开发具有重要意义。本文在前人研究基础上，运用沁水盆地主要矿区实测煤样的分 析资料，从储层煤岩特征、煤储层物性特征和吸附性三个方面，对沁水盆地中煤阶煤储层特征进行了研究。结果表明：（1 ） 研究区宏观煤岩类型以半亮煤、半暗煤和半亮-半暗煤为主，平均含量分别约为 38.4%、30.8%和 30.7% ，煤岩显微组分以镜 质组和惰性组为主，较少矿物充填；（2 ）煤储层微裂隙较发育，小孔和微孔较为发育，外生裂隙发育普遍，孔隙度和渗透率 发育较好，有利于煤层气的聚集；（3 ）研究区煤储层整体吸附性较好，区域上盆地东部较西部吸附性好。 关键词：煤层气；中煤阶 ；微裂隙 ；沁水盆地 Study on Characteristics of the Reservoirs for Medium-Rank Coals in Qinshui Basin *1,2,3 1,2,3 Jun Liu , Dan Yi 1. Key Laboratory of Shale Gas Exploration, Ministry of Land and Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing, China, 400042 2. Chongqing Engineering Research Center for Shale Gas Resource and Exploration, Chongqing Institute of Geology and Mineral Resources, Chongqing, China, 400042 3. Chongqing Shalegas Research Center of State Key Laboratory of Petroleum Resource and Prospecting, Chongqing, China, 400042 liujuncq@163.com Abstract: Study on the characteristics of coalbed methane reservoir is of great significance for the exploration and development of CBM. Based on the predecessors research and the measured coal sample analysis data of main mining area of the Qinshui basin, and from the three aspects of the characteristics of coal rock, reservoir physical property of coal reservoir cha