Abstract：The deep carbonate fractured-vuggy reservoir in Tarim Basin is characterized by rapid lateral changes，strong heterogeneity，and complex contact relationship between fractures and caves，which seriously restrict the subsequent exploration and development.Thus，this paper studies a comprehensive prediction method of fractured-vuggy reservoirs based on pre-stack and post-stack seismic multi-attribute analysis.Based on the post-stack seismic data，we firstly select the multispectral geosteering coherence attributes as the sensitive attributes for large fault and cave prediction through multi-attribute comparative analysis.Secondly，based on pre-stack wide-azimuth seismic data，we propose an anisotropic strength characterization method based on the wide-azimuth geosteering phase attributes.The singular value decomposition （SVD） is used to calculate the ratio of the maximum singular value to the sum of singular values from different azimuth geosteering phase attributes.The obtained results can be used to characterize the distributions of anisotropic strength in the target reservoir and taken as underground fracture prediction results.Finally，the post-stack large fault and cave characterization results are combined with the pre-stack fracture prediction results for analysis，and the results can be applied to the prediction of carbonate fractured-vuggy reservoirs in Tarim Basin.The contact relationship between fractures and caves can be clearly characterized，which is more consistent with the real drilling results，thus providing a favorable basis for subsequent exploration and development.
刘韬, 王铁一, 孙珂, 韩东. 碳酸盐岩缝洞型储层叠前—叠后地震综合预测方法及应用[J]. 石油地球物理勘探, 2023, 58(6): 1463-1471.
LIU Tao, WANG Tieyi, SUN Ke, HAN Dong. Pre-stack and post-stack seismic comprehensive prediction method and its application in carbonate fractured-vuggy reservoirs. Oil Geophysical Prospecting, 2023, 58(6): 1463-1471.
马艺璇,李慧莉,刘坤岩,等.基于分频相干体的蚂蚁追踪技术在塔河油田断裂刻画中的应用[J].石油物探,2020,59(2): 258-266.MA Yixuan,LI Huili,LIU Kunyan,et al.Application of an ant-tracking technique based on spectral decomposition to fault characterization[J].Geophysical Prospecting for Petroleum,2020,59(2): 258-266.
[2]
崔正伟,程冰洁,徐天吉,等.基于构造导向滤波与梯度结构张量相干属性的储层裂缝预测方法及应用[J].石油地球物理勘探,2021,56(3): 555-563.CUI Zhengwei,CHENG Bingjie,XU Tianji,et al.Reservoir fracture prediction method and application based on structure-oriented filtering and coherent attributes of gradient structure tensor[J].Oil Geophysical Prospecting,2021,56(3): 555-563.
[3]
闫家伟,王文庆,吕芳芳,等.复杂碳酸盐岩储层多数据融合预测技术——以千米桥潜山奥陶系为例[J].石油地球物理勘探,2021,56(3): 583-592.YAN Jiawei,WANG Wenqing,LYU Fangfang,et al.Fusion of multiple data for predicting complex carbonate reservoirs and its application: a case study on Ordovician of Qianmiqiao buried hills[J].Oil Geophysical Prospecting,2021,56(3): 583-592.
[4]
王静,张军华,芦凤明,等.构建三维深度监督网络的断层检测方法[J].石油地球物理勘探,2021,56(5): 947-957.WANG Jing,ZHANG Junhua,LU Fengming,et al.Research on fault detection method based on 3D deeply supervised network[J].Oil Geophysical Prospecting,2021,56(5): 947-957.
[5]
陈俊安,陈海东,龚伟,等.深度学习与边缘增强相结合的断裂综合检测技术——顺北地区超深走滑断裂检测应用实例[J].石油地球物理勘探,2022,57(6): 1304-1316.CHEN Jun’an,CHEN Haidong,GONG Wei,et al.Application of comprehensive fault detection technology combining deep learning with edge enhancement in detecting ultra-deep strike-slip faults in Shunbei block[J].Oil Geophysical Prospecting,2022,57(6): 1304-1316.
[6]
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.
[7]
MARFURT K J,KIRLIN R L,FARMER S L,et al.3-D seismic attributes using a semblance-based coherency algorithm[J].Geophysics,1998,63(4): 1150-1165.
[8]
GERSZTENKORN A,MARFURT K J.Eigenstruc- ture-based coherence computations as an aid to 3-D structural and stratigraphic mapping[J].Geophysics,1999,64(5): 1468-1479.
[9]
YAN B,YUAN S,WANG S,et al.Improved eigenvalue-based coherence algorithm with dip scanning[J].Geophysics,2017,82(2): V95-V103.
WANG S,YUAN S,WANG T,et al.Three-dimensional geosteering coherence attributes for deep-formation discontinuity detection[J].Geophysics,2018,83(6): O105-O113.
[12]
曾凡盛,王兴春,陈同俊.谱分解和C3相干联合识别煤层小断层研究[J].地球物理学进展,2013,28(1): 462-467.ZENG Fansheng,WANG Xingchun,CHEN Tongjun.Joint technique of spectral decomposition and C3 coherence to detect fine faults of coal bed[J].Progress in Geophysics,2013,28(1): 462-467.
[13]
LI F,LU W.Coherence attribute at different spectral scales[J].lnterpretation,2014,2(1): SA99-SA106.
[14]
LI F,QI J,LYU B,et al.Multispectral coherence[J].Interpretation,2018,6(1): T61-T69.
[15]
WANG T,YUAN S,GAO J,et al.Multispectral phase-based geosteering coherence attributes for deep stratigraphic feature characterization[J].IEEE Geoscience and Remote Sensing Letters,2019,16(8): 1309-1313.
[16]
RÜGER A.Reflection Coefficients and Azimuthal AVO Analysis in Anisotropic Media[M].Society of Exploration Geophysicists,Oklahoma,2002.
WANG T,YUAN S,SHI P,et al.AVAZ inversion for fracture weakness based on three-term Rüger equation[J].Journal of Applied Geophysics,2019,162: 184-193.
[19]
PEREZ M A,GIBSON R L,NAFI TOKSOZ M.Detection of fracture orientation using azimuthal variation P-wave AVO responses[J].Geophysics,1999,64(4): 1253-1265.
[20]
GRIMM R E,LYNN H B,BATES C R,et al.Detection and analysis of naturally fractured gas resservoirs: multiazimuth seismic surveys in the Wind River Basin,Wyoming[J].Geophysics,1999,64(4): 1277-1292.
[21]
CLARK R A,BENSON P M,CARTER A J,et al.Anisotropic P-wave attenuation measured from a multi-azimuth surface seismic reflection survey[J].Geophysical Prospecting,2009,57(5): 835-845.
[22]
YUAN S,SU Y,WANG T,et al.Geosteering phase attributes: a new detector for the discontinuities of seismic images[J].IEEE Geoscience and Remote Sensing Letters,2019,16(1): 145-149.
