RS与GIS技术在页岩气地质调查和井场选址中的应用:以重庆城口页岩气勘查区为例  

Application of RS and GIS technology in shale gas geological survey and well site selection:a case study of Chengkou,Chongqing

作　　者：罗真富 谢洪斌 谭德军 吴欣蔓 曾祥亮 蒲达成 LUO Zhenfu;XIE Hongbin;TAN Dejun;WU Xinman;ZENG Xiangliang;PU Dacheng(National and Local Joint Engineering Research Center of Shale Gas Exploration and Development(Chongqing Institute of Geology and Mineral Resources),Chongqing 401120,China;Key Laboratory of Shale Gas Exploration,Ministry of Natural Resources(Chongqing Institute of Geology and Mineral Resources),Chongqing 401120,China;Chongqing Geology and Mineral Group,Chongqing 401123,China;CCTEG Chongqing Engineering(Group)Co.,Ltd.,Chongqing 400042,China)

机构地区：[1]页岩气勘探开发国家地方联合工程研究中心(重庆地质矿产研究院),重庆401120 [2]自然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401120 [3]重庆市地质矿产勘查开发集团有限公司,重庆401123 [4]中煤科工重庆设计研究院(集团)有限公司,重庆400042

出　　处：《中国矿业》2025年第3期94-103,共10页China Mining Magazine

摘　　要：为了在页岩气勘查工作中能够快速、准确、全面获取基础地质特征及地表条件较好的页岩气井场位置,提高勘查效率和减少勘查成本,本文以重庆城口页岩气勘查区为例,利用RS与GIS技术开展了地质解译和井场选址。以资源三号和ETM+遥感数据为数据源,本次地质解译建立了33个地层单元和断裂构造的解译标志,在1∶5万地质图基础上补充和修正了50条地层界线和143条断裂构造,通过遥感分析,进一步获取了研究区地层和断裂构造特征。为了获取最佳井场位置,本文在前人研究的基础上,将解译获取的断层和地层也用于井场选址,进一步优化井场适宜性评价因子和分级指标,选取坡度、断层、道路、水系、地质灾害、生态保护红线、居住用地和冲积物作为适宜性评价因子,采取“一票否决”的方法和GIS叠加分析得到井场适宜地,综合考虑地层和土地利用类型等因素,确定最优井场位置。首次采用LocaSpaceViewer软件实现地表三维可视化和井场景观室内浏览,辅助技术人员开展后期工作,为管理决策提供支持。通过野外调查验证,遥感地质解译成果和优选井场与实际情况一致。结果表明:在页岩气勘查工作中,利用RS和GIS技术有效获取的基础地质特征和优选井场可以为页岩气地质调查、资源评价、勘探开发及后期施工提供参考。To rapidly,accurately,and comprehensively acquire the basic geological characteristics and the optimal well site locations with favorable surface conditions,and increase the efficiency and costeffectiveness of shale gas exploration,the geological interpretation and well site selection are carried out by RS and GIS technology in a case study of Chengkou,Chongqing.Using ZY-3 and ETM+remote sensing data as data sources,the interpretation marks of 33 stratigraphic units and fault structures are established,and 50 stratigraphic boundaries and 143 fault structures are supplemented and corrected based on the 1∶50000 geological map.The characteristics of the strata and fault structures in the study area are further obtained by remote sensing analysis.To acquire the optimal well site locations,the interpreted faults and strata are also used for well site selection on the basis of previous research.The suitability evaluation factors and grading indicators are optimized.Factors such as slopes,faults,roads,water systems,geological hazards,ecological protection red lines,residential land,and alluvial deposits are selected as suitability factors,and the“one-ballot-veto”method and GIS overlay analysis are adopted to obtain the suitable areas for well sites selection.Additionally,factors such as stratum and land use types are considered to determine optimal well site locations.For the first time,LocaSpace Viewer software is adopted to facilitate 3D visualization of the ground surface and indoor browsing of the well site landscape,which assisted technicians in conducting post-processing work and supporting managerial decision-making.Field investigations validate that the remote sensing geological interpretation outcomes and the selected well sites are consistent with the actual situation.The outcomes reveal that in shale gas exploration,the basic geological characteristics and well sites effectively obtained by RS and GIS technology could serve as valuable references for shale gas geological investigation,resource evaluatio

关 键 词：页岩气 遥感解译 GIS技术 井场选址 LocaSpaceViewer软件 三维可视化 

分 类 号：TD15[矿业工程—矿山地质测量] TE112[石油与天然气工程—油气勘探] TP753[自动化与计算机技术—检测技术与自动化装置]