Analysis of Middle-Jurassic seismic facies in Hongtai area of Tu-Ha basin
Pan Shao-wei1, Yang Shao-chun1, Chen Xuan2, Liu Jin-hua1
1. College of Earth Resource and Information, China University of Petroleum, Dongying City, Shandong Province, 257061, China;
2. Institute of Development, Research Institute of Exploration & Development Petro China Tu-Ha Branch Hami City,Xinjiang Uygur Autonomous region, 839009, China
Abstract：The show of Middle Jurassic in Hongtai area of Tu-Ha basin on seismic sections is very continuous and pseudo-parallel reflections with strong amplitude and mid-low frequency, very continuous and parallel reflections with slightly strong amplitude and low frequency and slightly continuous and parallel reflections with weak amplitude and low frequency as well as blind zone of reflections. Based on the feature of Middle Jurassic seismic reflections the paper categorized the waveforms of seismic channels by the analytic method of seismic facies and transformed them into seismic facies. It divided 10 seismic facies generally for the Hongtai area according to analyzed results, constituting 4 areas of seismic facies, corresponding to low-frequency area, high-frequency area and mid-frequency area (relative to two facies areas) respectively. The low-frequency area is relative to sand rock, high-frequency area—mud rock and mid-frequency area—between sand and mud rocks. The sedimentary micro-facies map in S2 sand body is compiled based on seismic facies spreading map, which is proved by drilling data that the sedimentary micro-facies type at well site has good coincidence to that of well core.
潘少伟, 杨少春, 陈旋, 刘金华. 吐哈盆地红台地区中侏罗统地震相分析[J]. 石油地球物理勘探, 2008, 43(4): 425-429.
Pan Shao-wei, Yang Shao-chun, Chen Xuan, Liu Jin-hua. Analysis of Middle-Jurassic seismic facies in Hongtai area of Tu-Ha basin. OGP, 2008, 43(4): 425-429.
