Deep volcanic reservoir exploration with jointed electromagnetic and seismic data: an example of volcanic investigation in Liaodong Sag
XU Guifen1,2, HE Zhanxiang3,4, SHI Yanling1, DONG Weibin1
1. GME & Geochemical Surveys, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China;
2. School of Electrical Engineering, Hebei University of Technology, Tianjin 300401, China;
3. Academy for Advanced Interdisciplinary Stu-dies, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China;
4. Department of Earth and Space Sciences, Sou-thern University of Science and Technology, Shen-zheng, Guangdong 518055, China
Abstract：Seismic reflections from deep volcanic strata are disorderly,which makes volcanic reservoir detection very difficult.To overcome this difficulty,a specific technical strategy is proposed in this paper.The simulated annealing constrained inversion of jointed electromagnetic and seismic data improves the resolution together with drilling data calibration and shallow model building.With lithological analysis,the electrical variation regularity of volcanic rock in the research area is revealed,and an electrical variation rhythm coding is put forward to interpret reservoirs.In the end,the multi-stage and facies distribution of volcanic rocks in the third member of Shahejie Formation are identified,and the distribution characteristics of trachyte are described,which may provide a feasible reference for the exploration of similar complex targets.
徐桂芬, 何展翔, 石艳玲, 董卫斌. 电磁-地震联合研究深层火山岩储层——以辽东凹陷火山岩勘探为例[J]. 石油地球物理勘探, 2019, 54(4): 937-946.
XU Guifen, HE Zhanxiang, SHI Yanling, DONG Weibin. Deep volcanic reservoir exploration with jointed electromagnetic and seismic data: an example of volcanic investigation in Liaodong Sag. Oil Geophysical Prospecting, 2019, 54(4): 937-946.
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