Abstract:At present, the detection of lateral discontinuity of seismic signals mostly aims at fault detection, recognition and automatic interpretation, involving edge-preserving filtering technology, coherent cube technology, ant tracking technology, etc., which have been researched and used widely, but less researches on the detection of small-scale discontinuous seismic signals. As a third-generation coherent algorithm, local structural entropy has better noise resistance and higher resolution than the previous two generations of coherent algorithms, and has higher detecting accuracy for small discontinuous structures inside sandstone reservoirs. Taking local structural entropy as a core, and edge-preserving filtering and ant tracking attribute enhancement as support, a technology combination are formed for detecting the lateral discontinuity of sandstone reservoir. The process includes interpretative processing of seismic data, calculation of coherent attributes, characterization and optimization, and result verification and application. The application to the target sandstone unit in the H oilfield in the South China Sea shows that the results provided by the technology combination are consistent with the mudstone encountered by a horizontal well, proving the effectiveness of the technology combination.
范廷恩.点坝砂体储层内部不连续界线类型及预测方法研究[D].四川成都:西南石油大学,2016.FAN Ting'en.The Discontinuous Boundary of Thin Fluvial Reservoir and Its Prediction[D].Southwest Petroleum University,Chengdu,Sichuan,2016.
[2]
赵伦,王进财,陈礼,等.砂体叠置结构及构型特征对水驱规律的影响:以哈萨克斯坦南图尔盖盆地Kumkol油田为例[J].石油勘探与开发,2014,41(1):86-94.ZHAO Lun,WANG Jincai,CHEN Li,et al.Influences of sandstone superimposed structure and architecture on water-flooding mechanisms:a case study of Kumkol Oilfield in the South Turgay Basin,Kazakhstan[J].Petroleum Exploration and Development,2014,41(1):86-94.
[3]
于兴河.油田开发中后期储层面临的问题与基于沉积成因的地质表征方法[J].地学前缘,2012,19(2):1-14.YU Xinghe.Existing problems and sedimentogenesis-based methods of reservoir characterization during the middle and later periods of oilfield development[J].Earth Science Frontiers,2012,19(2):1-14.
[4]
范廷恩,王海峰,胡广义,等.海上油田复合砂体构型解剖方法及其应用[J].中国海上油气,2018,30(4):102-112.FAN Ting'en,WANG Haifeng,HU Guangyi,et al.Anatomy method of composite sand body architecture in offshore oilfield and its application[J].China Offshore Oil and Gas,2018,30(4):102-112.
[5]
彭达.河道砂体储层不连续性地震属性分析研究[D].四川成都:西南石油大学,2016.PENG Da.Study of Seismic Attributes for the Discontinuity of Channel Sandstone Reservoir[D].Southwest Petroleum University,Chengdu,Sichuan,2016.
[6]
刘洋,王典,刘财,等.基于非平稳相似性系数的构造导向滤波及断层检测方法[J].地球物理学报,2014,57(4):1177-1187.LIU Yang,WANG Dian,LIU Cai,et al.Structure-oriented filtering and fault detection based on nonstationary similarity[J].Chinese Journal of Geophysics,2014,57(4):1177-1187.
[7]
尹川,杜向东,赵汝敏,等.基于倾角控制的构造导向滤波及其应用[J].地球物理学进展,2014,29(6):2818-2822.YIN Chuan,DU Xiangdong,ZHAO Rumin,et al.Dip steered structure oriented filter and its application[J].Progress in Geophysics,2014,29(6):2818-2822.
刘传虎.地震相干分析技术在裂缝油气藏预测中的应用[J].石油地球物理勘探,2001,36(2):238-244.LIU Chuanhu.Application of seismic coherent analysis technology to prediction of fractured reservoir[J].Oil Geophysical Prospecting,2001,36(2):238-244.
[10]
苏朝光,刘传虎,王军,等.相干分析技术在泥岩裂缝油气藏预测中的应用[J].石油物探,2002,41(2):197-201.SU Chaoguang,LIU Chuanhu,WANG Jun,et al.Application of coherence analysis technology in the prediction of fractured shale reservoirs and its effect analysis[J].Geophysical Prospecting for Petroleum,2002,41(2):197-201.
[11]
王怀洪,王秀东,田育鑫.利用相干体技术探测煤矿微小构造方法研究[J].地球物理学进展,2007,22(5):1642-1649.WANG Huaihong,WANG Xiudong,TIAN Yuxin.Study on the method to identify minor structure of coalmines with the coherence technology[J].Progress in Geophysics,2007,22(5):1642-1649.
[12]
王从镔,龚洪林,许多年,等.高分辨率相干体分析技术及其应用[J].地球物理学进展,2008,23(5):1575-1578.WANG Congbin,GONG Honglin,XU Duonian,et al.High-resolution coherency analysis technique and its application[J].Progress in Geophysics,2008,23(5):1575-1578.
[13]
胡滨.复杂断裂精细解释技术组合及其应用[J].石油地球物理勘探,2019,54(3):608-616.HU Bin.Multi-technique combination for the complex-fault elaborate interpretation[J].Oil Geophysical Prospecting,2019,54(3):608-616.
[14]
龙旭,武林芳.蚂蚁追踪属性体提取参数对比试验及其在塔河四区裂缝建模中的应用[J].石油天然气学报,2011,33(5):76-81.LONG Xu,WU Linfang.Parameter comparative experiments on ant-tracking attribute extraction and its application in fracture modeling in region 4 of Tahe Oilfield[J].Journal of Oil and Gas Technology,2011,33(5):76-81.
[15]
姜晓宇,张研,甘利灯,等.花岗岩潜山裂缝地震预测技术[J].石油地球物理勘探,2020,55(3):694-704.JIANG Xiaoyu,ZHANG Yan,GAN Lideng,et al.Seismic techniques for predicting fractures in granite buried hills[J].Oil Geophysical Prospecting,2020,55(3):694-704.
[16]
Bahorich M,Farmer S.3-D seismic discontinuity for faults and stratigraphic features;the coherence cube[J].The Leading Edge,1995,14(10):1053-1058.
[17]
Israel C,Ronald R C.Local discontinuity measures for 3-D seismic data[J].Geophysics,2002,67(6):1933-1945.
[18]
周艳辉,高静怀,陈文超.检测地震不连续性结构的多分辨局部结构熵算法[J].西安交通大学学报,2008,42(2):226-230.ZHOU Yanhui,GAO Jinghuai,CHEN Wenchao.On the method of multi-resolution local structural entropy for enhancing local discontinuities of seismic data[J].Journal of Xi'an Jiaotong University,2008,42(2):226-230.
[19]
Luo Y,Marhoon M.Edge-preserving smoothing and applications[J].The Leading Edge,2002,21(2):136-158.
[20]
李楠,王龙颖,黄胜兵,等.利用高清蚂蚁体精细解释复杂断裂带[J].石油地球物理勘探,2019,54(1):182-190.LI Nan,WANG Longying,HUANG Shengbing,et al.3D seismic fine structural interpretation in complex fault zones based on the high-definition ant-tracking attribute volume[J].Oil Geophysical Prospecting,2019,54(1):182-190.
[21]
刘海燕.地震数据梯度一致性与不同数学算法结合的断层检测技术[D].吉林长春:吉林大学,2016.LIU Haiyan.Fault Detection Technology Using Seismic Data Gradient Coherence Combined with Different Mathematical Algorithms[D].Jinlin University,Changchun,Jinlin,2016.