切片演绎地震相分析方法及其应用
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摘要
海上油田建立等时地层格架过程中,面临着钻井少、无露头、地震分辨率经常不足以支撑常规技术手段划分满足开发阶段需求的地层格架等困难。为了解决这些问题,提出了切片演绎地震相分析方法,通过对地震信息的充分挖掘来建立精细等时地层格架。所谓切片演绎法,指在常规解释技术不能再细分地层单元的情况下,对该地层单元作等比例细分,通过细分的等时单元地震微相分析,结合沉积相演变规律,作进一步粗化合并,从而达到划分五级乃至六级层序地层格架目的的方法。应用该方法对LD油田明下段Ⅱ油组上进行了地震微相分析,建立了该段地层精细等时格架。生产结果表明,该方法提供的精细地层格架符合工区实际地质情况。
When building isochronous stratigraphic framework,offshore oilfields often has few wells,no outcrop and low seismic solution,therefore,the development demands cannot be satisfied.Aiming at this problem,the isochronous slice method is put forward to construct fine stratigraphic framework by fully excavating the seismic data.The isochronous slice method means that the formation is proportionally subdivided when it can't be recognized by traditional seismic interpretation technology,seismic microfacies of every slice is analyzed,and then upscaled with the geological setting.The finer isochronous framework is built.The method was used in the NmⅡ formation in LD27-2 Oilfield for seismic microfacies analysis and fine isochronous framework construction,which is proved reasonable by later production.The isochronous slice method provides a new methodology for not only fluvial reservoir but other complex reservoirs.
When building isochronous stratigraphic framework,offshore oilfields often has few wells,no outcrop and low seismic solution,therefore,the development demands cannot be satisfied.Aiming at this problem,the isochronous slice method is put forward to construct fine stratigraphic framework by fully excavating the seismic data.The isochronous slice method means that the formation is proportionally subdivided when it can't be recognized by traditional seismic interpretation technology,seismic microfacies of every slice is analyzed,and then upscaled with the geological setting.The finer isochronous framework is built.The method was used in the NmⅡ formation in LD27-2 Oilfield for seismic microfacies analysis and fine isochronous framework construction,which is proved reasonable by later production.The isochronous slice method provides a new methodology for not only fluvial reservoir but other complex reservoirs.
引文
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[13]赵翰卿,付志国,吕晓光,等.大型河流三角洲沉积储层精细描述方法[J].石油学报,2000,21(4):109-113Zhao H Q,Fu Z G,Lv X G,et al.Methods for de-tailed description of large fluvial-delta depositionalreservoir[J].Acta Petrolei Sinica,2000,21(4):109-113
[14]蔡希源,张学明.陆相盆地层序地层学研究中几个问题的探讨[J].现代地质,1999,13(3):287-290Cai X Y,Zhang X M.Several problems in sequencestratigraphy in continental facies basin[J].Geosci-ence,1999,13(3):287-290
[15]陈遵德.储层地震属性优化方法[M].北京:石油工业出版社,1998:1-165Chen Z D.Reservoir seismic attributes optimizationmethod[M].Beijing:Petroleum Industry Press,1998:1-165
[16]朱筱敏,董艳蕾,胡廷惠,等.精细层序地层格架与地震沉积学研究——以泌阳凹陷核桃园组为例[J].石油与天然气地质,2011,32(4):615-624Zhu X M,Dong Y L,Hu T H,et al.Seismic sedim-entology study of fine sequence stratigraphic frame-work:a case study of the Hetaoyuan Formation inthe Biyang Sag[J].Oil&Gas Geology,2011,32(4):615-624
[17]闵小刚,陈开远,范廷恩.井-震结合进行河流相储层非均质性表征——以渤海湾盆地黄河口凹陷渤中263油田为例[J].石油与天然气地质,2011,31(3):375-381Min X G,Chen K Y,Fan T E.Heterogeneity charac-terization of fluvial facies reservoirs through integra-tion of seismic and logging data—an example fromBozhong-263oilfield in the Huanghekou Sag,the Bo-hai Bay Basin[J].Oil&Gas Geology,2011,31(3):375-381
[2]龙国清,韩大匡,田昌炳,等.油藏开发阶段河流相基准面旋回划分与储层细分对比方法探讨[J].现代地质,2009,23(5):963-967Long G Q,Han D K,Tian C B,et al.The base levelcycle subdivision and correlation of fluvial facies inthe phase of reservoir development[J].Geoscience,2009,23(5):963-967
[3]邓宏文,吴海波,王宁,等.河流相层序地层划分方法——以松辽盆地下白垩统扶余油层为例[J].石油与天然气地质,2007,28(5):621-628Deng H W,Wu H B,Wang N,et al.Division of flu-vial sequence stratigraphy-an example from theLower Cretaceous Fuyu oil-bearing layer,the Songli-ao Basin[J].Oil&Gas Geology,2007,28(5):621-628
[4]毕海龙,李斌,聂万才,等.地震沉积学在下石盒子组河流相层序界面识别中的应用[J].石油地球物理勘探,2010,45(增刊):191-195Bi H L,Li B,Nie W C,et al.Application of seismicsedimentology in recognition of fluvial facies strati-graphic sequence interface for Lower Shihezi Forma-tion[J].Oil Geophysical Prospecting,2010,45(S):191-195
[5]杨国权,高荣涛,雷凌,等.河流相储集体的精细解释与描述[J].石油地球物理勘探,2005,40(3):314-317Yang G Q,Gao R T,Lei L,et al.Fine interpretationand description of river facies reservoir[J].Oil Geo-physical Prospecting,2005,40(3):314-317
[6]国景星,戴启德,吴丽艳,等.冲积-河流相层序地层学研究[J].石油大学学报(自然科学版),2003,27(4):15-19Guo J X,Dai Q D,Wu Y L,et al.Study on alluvial-fluvial facies sequence stratigraphy[J].Journal ofthe University of Petroleum,China,2003,27(4):15-19
[7]李阳.河流相储层沉积学表征[J].沉积学报,2007,25(1):48-52Li Y.Characterization of sedimentology in fluvial fa-cies reservoir[J].Acta Sedimentologica Sinica,2007,25(1):48-52
[8]邓宏文,王红亮,阎伟鹏,等.河流相层序地层构成模式探讨[J].沉积学报,2004,22(3):373-379Deng H W,Wang H L,Yan W P,et al.Architecturemodel of sequence stratigraphy in fluvial facies[J].Acta Sedimentologica Sinica,2004,22(3):373-379
[9]黎文,周志才,吴焱.用地震剖面划分沉积微相[J].石油物探,2000,39(1):57-62Li W,Zhou Z C,Wu Y.Sedimentary microfacies dif-ferentiation using seismic sections[J].GeophysicalProspecting for Petroleum,2000,39(1):57-62
[10]渠芳,陈清华,连承波,等.河流相储层细分与对比中存在的问题[J].西安科技大学学报,2007,27(1):49-53Qu F,Chen Q H,Lian C B,et al.Problems in thesubdivision and correlation of fluvial reservoir[J].Journal of Xi an University of Science and Technolo-gy,2007,27(1):49-53
[11]高志勇.河流相沉积中准层序与短期基准面旋回对比研究——以四川中部须家河组为例[J].地质学报,2007,81(1):109-118Gao Z Y.Correlation of parasequence and short-termbase level cycles in river facies:a case of the Xujia-heFormation in Central Sichuan[J].Acta GeologicalSinica,2007,81(1):109-118
[12]郑荣才,柯光明,文国华,等.高分辨率层序分析在河流相砂体等时对比中的应用[J].成都理工大学学报:自然科学版,2004,31(6):641-647.Zheng R C,Ke G M,Wen G H,et al.Isochronic cor-relation of fluvial sandbodies by high-resolution se-quence technique[J].Journal of Chengdu Universityof Technology(Science&Technology Edition),2004,31(6):641-647
[13]赵翰卿,付志国,吕晓光,等.大型河流三角洲沉积储层精细描述方法[J].石油学报,2000,21(4):109-113Zhao H Q,Fu Z G,Lv X G,et al.Methods for de-tailed description of large fluvial-delta depositionalreservoir[J].Acta Petrolei Sinica,2000,21(4):109-113
[14]蔡希源,张学明.陆相盆地层序地层学研究中几个问题的探讨[J].现代地质,1999,13(3):287-290Cai X Y,Zhang X M.Several problems in sequencestratigraphy in continental facies basin[J].Geosci-ence,1999,13(3):287-290
[15]陈遵德.储层地震属性优化方法[M].北京:石油工业出版社,1998:1-165Chen Z D.Reservoir seismic attributes optimizationmethod[M].Beijing:Petroleum Industry Press,1998:1-165
[16]朱筱敏,董艳蕾,胡廷惠,等.精细层序地层格架与地震沉积学研究——以泌阳凹陷核桃园组为例[J].石油与天然气地质,2011,32(4):615-624Zhu X M,Dong Y L,Hu T H,et al.Seismic sedim-entology study of fine sequence stratigraphic frame-work:a case study of the Hetaoyuan Formation inthe Biyang Sag[J].Oil&Gas Geology,2011,32(4):615-624
[17]闵小刚,陈开远,范廷恩.井-震结合进行河流相储层非均质性表征——以渤海湾盆地黄河口凹陷渤中263油田为例[J].石油与天然气地质,2011,31(3):375-381Min X G,Chen K Y,Fan T E.Heterogeneity charac-terization of fluvial facies reservoirs through integra-tion of seismic and logging data—an example fromBozhong-263oilfield in the Huanghekou Sag,the Bo-hai Bay Basin[J].Oil&Gas Geology,2011,31(3):375-381
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