裂缝储层的地震预测技术与应用实例
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
裂缝性储层是油气勘探的重要储层类型之一,也是页岩气勘探的重点目标。本文针对中国深部陆相河流相碎屑岩裂缝储层,开展了系统的研究,包括VSP和三维地面地震采集设计、VSP处理与储层参数求取、VSP驱动的全方位地面地震数据处理、储层构造和储层沉积解释以及纵波地震属性、VSP信息和测井信息的综合解释,并最终获得了裂缝性储层的预测结果。通过研究认为,裂缝储层预测要以储层的构造、沉积解释为基础,对于陆相碎屑岩裂缝储层,需要储层沉积相解释才能正确预测裂缝性储层发育带。在此基础上,仍需进行油气成藏模式的研究,才能更有效地预测裂缝油气藏目标。
Fractured reservoir is one of important reservoir types for hydrocarbon exploration,and a major target for shale gas exploration.For fracture prediction of deep fluvial clastic reservoirs in China,we have conducted a series of researches including geometry design of VSP and 3Dfull-azimuth seismic acquisition,VSP processing and reservoir parameter estimation,VSP-driven surface seismic processing,structural and depositional interpretation,fracture prediction with attributes extracted from surface seismic P-wave data,and comprehensive analysis of VSP data and well logging data.Finally we obtain the prediction of fractured reservoirs.For reservoirs with continental facies,tectonic and sedimentary facies interpretations are needed to predict fracture-developed zones.On this basis,research on oil and gas accumulation model is needed to predict hydrocarbon-bearing fractured reservoirs.
引文
[1]Berryman J G.Long-wave elastic anisotropy in transversely isotropic media.Geophysics,1979,44(5):896-917.
    [2]Crampin S.Shear-wave polarizations:A plea for three-component recording.SEG Technical Program Expanded Abstracts,1983,2:425-428.
    [3]Helbig K.Elliptical anisotropy-Its significance and meaning.Geophysics,1983,48(7):825-832.
    [4]Helbig K.Anisotropy and dispersion in periodically layered media.Geophysics,1984,49(4):364-373.
    [5]Tsvankin I and Thomsen L.Nonhyperbolic reflection moveout in anisotropic media.Geophysics,1994,59(8):1290-1304.
    [6]Alkhalifah T and Tsvankin I.Velocity analysis for transversely isotropic media.Geophysics,1995,60(5):1550-1566.
    [7]Schoenberg M and Sayers C M.Seismic anisotropy of fractured rock.Geophysics,1995,60(1):204-211.
    [8]Bakulin A,Grechkaz V and Tsvankinz I.Estimation of fracture parameters from reflection seismic data,Part I:HTI model due to a single fracture set.Geophysics,2000,65(6):1788-1802.
    [9]凌云,郭向宇,孙祥娥等.地震勘探中的各向异性影响问题研究,石油地球物理勘探,2010,45(4):606-623.Ling Yun,Guo Xiangyu,Sun Xiang’e et al.Studies of the influence of anisotropy in seismic exploration.OGP,2010,45(4):606-623.
    [10]Tsvankin I.Seismic Signatures and Analysis of Reflection Data in Anisotropic Media(Second Edition).Elsevier Science Ltd,2005.
    [11]凌云,高军,吴琳.时频—空间域球面发散与吸收补偿.石油地球物理勘探,2005,40(2):176-182,189.Ling Yun,Gao Jun and Wu Lin.Compensation for spherical dispersion and absorption in time-frequencyspace domain.OGP,2005,40(2):176-182,189.
    [12]Nelson R A.Geological Analysis of Naturally Fractured Reservoirs.Gulf Publishing Company,Houston,1985.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心