Abstract：The Jurassic formation of Saylan Sag in the South Turgay Basin has developed a set of gray sand reservoirs with fluvial facies，and the lithology is mainly composed of sand-mud interbed with thin coal seam and poor lateral continuity.The GR curve is difficult to identify coal seams from sand-mudstones，and sand-mudstones with overlapped wave impedances reduce the reservoir sensitivity.The conventional wave impedance inversion cannot ensure a fine description of reservoir distribution.Based on the pseudo-acoustic technique，the GR sensitive to sand-mudstones is used to fuse with the acoustic curve by frequency while retaining the original acoustic curve information sensitive to coal seam，so as to generate a pseudo-acoustic curve with sonic dimension that can remove the influence of coal seam and reflect reservoir characteristics and carry out wave impedance inversion.The results show that the inversion results are highly consistent with the drilling data，and the seismic inversion based on the pseudo-acoustic technique can well eliminate the influence of the coal seam and effectively depict the spatial distribution of the reservoir.
郑四连,刘百红,张秀容,等.伽马拟声波曲线构建技术在储层预测中的应用[J].石油物探,2006,45(3): 256-261. ZHENG Silian,LIU Baihong,ZHANG Xiurong,et al.The application of GR pseudo- acoustic curve construction technology in reservoir prediction in Xiaohaotu[J].Geophysical Prospecting for Petroleum,2006,45(3): 256-261.
[2]
赵继龙,熊冉,陈戈,等.伽马拟声波分频重构反演在储层预测中的应用[J].地球物理学进展,2013,28(4): 1954-1961. ZHAO Jilong,XIONG Ran,CHEN Ge,et al.GR quasi-acoustic frequency divisions reconstruct seismic inversion and application in reservoir prediction[J].Progress in Geophysics,2013,28(4): 1954-1961.
[3]
何翠,郭少斌,唐瑾,等.拟声波反演技术在轮南地区的应用[J].西安科技大学学报,2016,36(3): 408-413. HE Cui,GUO Shaobin,TANG Jin,et al.Application of pseudo acoustic inversion technique in Lunnan area[J].Journal of Xi’an University of Science and Technology,2016,36(3): 408-413.
[4]
崔健,张星.曲线重构反演在储层预测研究中的应用[J].大庆石油地质与开发,2008,27(3): 133-135. CUI Jian,ZHANG Xing.Application of curve rebuild inversion in reservoir predication[J].Petroleum Geo-logy & Oilfield Development in Daqing,2008,27(3): 133-135.
[5]
张鹏飞,贺金胜,侯云鹏,等.声波重构反演技术在尼日尔N三维区的应用[J].中国石油和化工标准与质量,2019,39(5): 187-189. ZHANG Pengfei,HE Jinsheng,HOU Yunpeng,et al.Application of pseudo-acoustic curve construction technology in N block of Niger[J].China Petroleum and Chemical Standard and Quality,2019,39(5): 187-189.
[6]
刘百红,郑四连,关达.拟声波宽带约束波阻抗反演在储层预测中的应用[J].勘探地球物理进展,2005,28(6): 416-421. LIU Baihong,ZHENG Silian,GUAN Da.Broadband constrained impedance inversion on pseudo-acoustic curve and its application in reservoir prediction[J].Progress in Exploration Geophysics,2005,28(6): 416-421.
[7]
姜传金,马学辉,周恩红.拟声波曲线构建的意义及应用[J].大庆石油地质与开发,2004,23(1): 12-14. JIANG Chuanjin,MA Xuehui,ZHOU Enhong.The significance and application of composing pseudo-acoustic curve[J].Petroleum Geology & Oilfield Development in Daqing,2004,23(1): 12-14.
[8]
张学芳,董月昌,慎国强,等.曲线重构技术在测井约束反演中的应用[J].石油勘探与开发,2005,32(3): 70-72. ZHANG Xuefang,DONG Yuechang,SHEN Guoqiang,et al.Application of log rebuilding technique in constrain inversion[J].Petroleum Exploration and Development,2005,32(3): 70-72.
[9]
王玉学,汤达祯,龚建华,等.拟声波反演技术在储层预测中的应用——以吐哈盆地台北凹陷胜北地区白垩系为例[J].石油实验地质,2004,26(3): 303-307. WANG Yuxue,TANG Dazhen,GONG Jianhua,et al.Application of quasi-acoustic inversion technology to reservoir prediction : a case study of the Cretaceous in Shengbei area of the Taibei sag,the Tuha basin[J].Petroleum Geology & Experiment,2004,26(3): 303-307.
[10]
杨振峰,田仁飞,肖学,等.拟电阻率重构在岩性油藏油层识别中的应用[J].科学技术与工程,2014,14(7): 117-120. YANG Zhenfeng,TIAN Renfei,XIAO Xue,et al.The application pseudo-resistivity reconstruction to iden- tify oil layers in lithologic reservoir[J].Science Technology and Engineering,2014,14(7): 117-120.
[11]
王延光.储层地震反演方法以及应用中的关键问题与对策[J].石油物探,2002,41(3): 299-303. WANG Yanguang.Seismic reservoir inversion algorithm and the key problems and policies in its application[J].Geophysical Prospecting for Petroleum,2002,41(3): 299-303.
[12]
刘丽红,彭真明,黄东山,等.基于概率神经网络信息融合的拟声波构建方法[J].石油地球物理勘探,2012,47(5): 803-807. LIU Lihong,PENG Zhenming,HUANG Dongshan,et al.Pseudo-acoustic log construction based on information fusion from probabilistic neural networks[J].Oil Geophysical Prospecting,2012,47(5): 803-807.
