物探与化探2023，Vol.47Issue(6)：1400-1409,10.DOI:10.11720/wtyht.2023.1611
雄安新区深部雾迷山组热储层时频电磁法探测研究
Research on time-frequency electromagnetic method detection of Wumishan Formation thermal reservoir in deep Xiong'an New Area
摘要
Abstract
Xiong'an New Area is one of the areas with the best conditions for the development and utilization of geothermal resources in sedimentary basins of eastern China.Wumishan Formation of Jixian System is the main thermal reservoir,with buried depth of the top boundary varies greatly,which istypical carbonate type thermal reservoir.In order to find out the stratigraphic structure and concealed faults within 6 km of the starting area of Xiong'an New Area,focus on finding out the spatial distribution and structural characteristics of the main deep thermal reservoirs,and predict the favorable geothermal areas,the time-frequency electromagnetic method is applied to the geothermal resources exploration of Xiong'an New Area.Through high-standard data acquisition,refined data processing and re-sistivity-constrained inversion,the pseudo-seismic imaging technology and borehole data are used to calibrate the resistivity horizon,which effectively improves the reliability of interpretation results.In this work,8concealed faults were identified,mainly NNE strike normal faults,which controlled the salient-depression pattern and stratigraphic distribution of the study area.The study area is divided into Rongcheng salient,middle sub-depression,Niutuozhen salient and Baxian depression from west to east.The thermal reservoirs of Wumishan Formation is mainly distributed in Niutuozhen salient,Rongcheng salient and middle sub-depression,with buried depth of top interface is about 600～2600m.Vsing the inversion results of the time-frequency electromagnetic method,the three-dimensional ge-ological model of the study area is constructed,and the Niutuozhen salient area is considered to be the optimal geothermal favorable ar-ea from the aspects of heat source,channel,reservoir,caprock and fluid,especially near the footwall of F4.关键词
时频电磁法/雄安新区/深部地热/雾迷山组热储层/地热有利区Key words
time-frequency electromagnetic method/Xiong'an New Area/deep geothermal exploration/thermal reservoir of wumishan formation/favorable geothermal area abstract分类
天文与地球科学引用本文复制引用
程正璞,连晟,魏强,胡文广,雷鸣,李戍..雄安新区深部雾迷山组热储层时频电磁法探测研究[J].物探与化探,2023,47(6):1400-1409,10.基金项目
中国地质调查局项目"干热岩资源调查与勘查试采示范"(DD20230018) （DD20230018）
