贵州省煤层气开发进展、潜力及前景  

Progress, potential and prospects of CBM development in Guizhou Province

作　　者：金军[1,2] 杨兆彪 秦勇[1] 崔玉环[3] 王国玲 易同生 吴财芳 高为[2] 陈捷 李庚 李存磊 JIN Jun;YANG Zhaobiao;QIN Yong;CUI Yuhuan;WANG Guoling;YI Tongsheng;WU Caifang;GAO Wei;CHEN Jie;LI Geng;LI Cunlei(Key Laboratory of CBM Resources and Dynamic Accumulation Process,Ministry of Education of China,China University of Mining and Technology,Xuzhou 221008,China;Guizhou Research Center of Shale Gas and CBM Engineering Technology,Guiyang 550009,China;Beijing Orion Energy Technology Development Co.,Ltd.,Beijing 100190,China)

机构地区：[1]中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏徐州221008 [2]贵州省煤层气页岩气工程技术研究中心,贵州贵阳550009 [3]北京奥瑞安能源技术开发有限公司,北京100190

出　　处：《煤炭学报》2022年第11期4113-4126,共14页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(41772155);国家科技重大专项资助项目(2016ZX05044-002);《贵州省西部煤系气调查评价》资助项目(2018-01号)。

摘　　要：贵州省西部晚二叠世龙潭组煤层气资源丰富,约占全国煤层气地质资源量的10%。在国家能源战略规划中,该区是继已成功开发的沁水盆地和鄂尔多斯盆地东缘煤层气产业化基地外的重要后备基地。提炼了贵州省特殊的煤层气地质资源特征,评述了30余年的开发历程,总结贵州省煤层气的开发进展,理论技术突破,并对未来的开发潜力和前景作出展望。贵州煤层气地质资源特征具有“煤层层数多而薄,煤层含气量高、煤体结构复杂、大型气田为主、深部资源占比大”的五大特征。开发历程可划分为煤层气资源调查与开发技术借鉴阶段(1989—2010年)、自主技术探索阶段(2011—2015年)和自主技术突破阶段(2016—现今)3个阶段。当前的快速发展得益于多煤层煤层气地质理论和开发技术的突破,地质理论突破包括:叠置煤层气系统理论、产层优化组合理论和合采开发单元优选理论。开发技术突破主要包括:丛式井、U型井和L型井的普及应用;压裂规模的提高及压裂效果的提升。展望未来,开发潜力巨大,规模化开发前景可期,需重点在全省范围内推广小而肥区块“文家坝”和“杨梅树”高产地质-工程模式;从单井单层组开发走向层组接序开发,提高单井纵向全层位产能动用能力并延长煤层气井寿命;加快深部煤系气的勘探开发,是走向规模化开发的重要途径;重视新层系、新领域上石炭统祥摆海相煤系气的开发潜力。The Longtan Formation of Late Permian in western Guizhou is rich in coalbed methane(CBM)resources, accounting for about 10% of the national CBM geological resources. In the national energy strategic plan, this area is an important backup base after the successfully developed Qinshui Basin and eastern margin of the Ordos Basin which are the CBM industrialization base. This paper aims to refine the characteristics of the special geological resources of CBM in Guizhou Province, China, comment on the development history of more than 30 years, summarize the development progress of CBM in Guizhou Province, theoretical and technological breakthroughs, and analyze the future development potential and prospects. The CBM geological resource in Guizhou Province have five major features of “many but thin coal seams, high CBM content, complex coal body structure, main large gas fields, and deep resources accounting for a large proportion”. The development process can be divided into three stages: the CBM resource investigation and development technology reference stage(1989-2010),the independent technology exploration stage(2011-2015),and the independent technological breakthrough stage(2016-Present). The current rapid development benefits from the breakthroughs in multi-coal seams CBM theories and development technologies. The breakthroughs in geological theories include the superimposed CBM system theory, the production layer optimization combination theory, and the joint-mining development unit optimization theory. Development technological breakthroughs include the popularization of cluster wells, U-shaped wells and L-shaped wells, and the increase of fracturing scale and fracturing effect. For the future, the development potential is huge and the large-scale development prospects can be expected. It is necessary to focus on promoting the geology-engineering high-yield models of “Wenjiaba” and “Yangmeishu” in small but rich blocks throughout the province. The development should move from a single-well single-l

关 键 词：贵州省 煤层气 多煤层 大型气田 开发进展 潜力 

分 类 号：P618.11[天文地球—矿床学]