综合物探方法在霍邱马店地区能源资源调查评价中的应用  

Application of Comprehensive Geophysical Prospecting Method in Investigation and Evaluation of Energy Resources in Huoqiu Madian Area

作　　者：张玲玲 鲁杏[1] 陆大进 Zhang Lingling;Lu Xing;Lu Dajin(Geological Exploration Technologies Institude of Anhui Province,Hefei Anhui 230031,China)

机构地区：[1]安徽省勘查技术院,安徽合肥230031

出　　处：《工程地球物理学报》2021年第6期911-916,共6页Chinese Journal of Engineering Geophysics

基　　金：国家重点研发计划课题(编号:2017YFC0602204);安徽省公益性地质调查项目(编号:2015g-24)。

摘　　要：霍邱马店地区位于合肥盆地西缘,附近新发现了厚度达200 m的碳酸盐岩,属于碳酸盐斜坡相,具有生油气的潜能。为了查明该地区的地层格架和构造特征,在该地区开展了重力、可控源音频大地电磁测深(CSAMT)工作。通过对重力资料的处理、CSAMT资料的处理、二维反演,得到了布格重力异常和电阻率剖面特征。根据地电模型、布格重力异常曲线,并综合利用区域地质、区域重磁场资料,以物性参数作为依据,进行了剖面2.5D人机交互地质建模。根据建模结果,对综合物探资料进行了解释,基本明确了该区新生代地层和古生代分布区在剖面上的范围、长度和地质特征,同时还推断解释了5条断裂的性质、位置和走向。通过综合物探工作所查明的主要地层展布情况、断裂构造的性质和规模,为该地区寻找古生代油气进而进行能源资源调查评价提供了基础资料。Huoqiu Madian area is located in the western margin of Hefei Basin,where carbonate rocks with a thickness of 200 meters are newly discovered nearby,which belong to carbonate slope facies and have the potential of oil and gas generation.In order to identify the stratigraphic framework and structural characteristics of this area,gravity and controlled source audio magnetotelluric sounding(CSAMT)is carried out in this area.Through the processing of the gravity data and CSAMT data,the Bouguer gravity anomaly and resistivity profile characteristics are obtained.According to the geoelectric model,Bouguer gravity anomaly curve,and comprehensive utilization of regional geology,regional gravity and magnetic field data,based on the physical parameters,the section 2.5D human-computer interactive geological modeling are carried out.Based on the modeling results,the comprehensive geophysical data are interpreted,the scope,length and geological characteristics of Cenozoic strata and Paleozoic distribution areas in this area are basically defined.At the same time,the properties,positions and trends of five faults are inferred and explained.The distribution of main strata,the nature and scale of fault structures identified by comprehensive geophysical prospecting work provide basic data for exploration of Paleozoic oil and gas in this region and the investigation and evaluation of energy resources.

关 键 词：重力 可控源音频大地电磁测深 地质构造 地层展布 

分 类 号：P631[天文地球—地质矿产勘探]