松辽盆地齐家—古龙凹陷上白垩统嫩江组沉积相地震成像
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摘要
主要应用地震沉积学方法对松辽盆地齐家—古龙凹陷上白垩统嫩江组沉积体系及沉积相进行地震成像。在一个相对的地质时间范围内,以测井和地震资料相结合进行的三级层序对比为基础,应用可视化属性解释和地层切片等地球物理技术对地下地质体进行精细刻画和解释,以揭示高分辨率储集层沉积体特征。经研究,在齐家—古龙凹陷发育重力流水道、湖底扇和河流三角洲等沉积相。在对该区沉积相地震成像的基础上,探讨了嫩江组沉积体成因及地震地貌样式,揭示了嫩江组发育的典型沉积体的空间展布及河道变迁,指出砂岩主要分布在分流河道、下切谷、河口坝以及滩坝中,为在松辽盆地湖相泥岩中寻找岩性油气藏提供了有利依据。
A seismic-sedimentologic study was performed to image the depositional systems of the Nenjiang Formation in the Qijia-Gulong Sag of the Songliao Basin.Based on third order sequence-stratigraphic correlations from seismic and wire-line-log data,the authors used geophysical technology,including visual attribute interpretation and strata slices,to image and reveal high-resolution reservoir depositional systems in a relative geologic time.Three types of depositional systems have been identified in the Nenjiang Formation,including the gravity flow channel,sublacustrine fan,and fluvial delta.Based on imaging the depositional systems,the authors investigated the origins of the sedimentary bodies and their seismic geomorphologic patterns,and revealed the spatial distribution of typical sedimentary bodies and the channel changes in the Nenjiang Formation.The results indicated that sandbodies occurred primarily in the distributary channel,incised valleys,mouth bar and point bar.This study provides favorable evidence for finding hydrocarbon reservoirs in lacustrine mudstones in the Songliao Basin.
A seismic-sedimentologic study was performed to image the depositional systems of the Nenjiang Formation in the Qijia-Gulong Sag of the Songliao Basin.Based on third order sequence-stratigraphic correlations from seismic and wire-line-log data,the authors used geophysical technology,including visual attribute interpretation and strata slices,to image and reveal high-resolution reservoir depositional systems in a relative geologic time.Three types of depositional systems have been identified in the Nenjiang Formation,including the gravity flow channel,sublacustrine fan,and fluvial delta.Based on imaging the depositional systems,the authors investigated the origins of the sedimentary bodies and their seismic geomorphologic patterns,and revealed the spatial distribution of typical sedimentary bodies and the channel changes in the Nenjiang Formation.The results indicated that sandbodies occurred primarily in the distributary channel,incised valleys,mouth bar and point bar.This study provides favorable evidence for finding hydrocarbon reservoirs in lacustrine mudstones in the Songliao Basin.
引文
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Weimer P,Link MH.1991.Seismic Facies and Sedimentary Processesof Submarine Fans and Turbidite Systems[M].New York:Spring-er-Verlag,447.
Zeng Hongliu.1994.Facies-guided3-D Seismic Modeling and Reser-voir Characterization[D].Austin,Texas University of Texas at Aus-tin,164.
Zeng Hongliu,Robert G Loucks.2007.Mapping sediment dispersal pat-terns and associated systems tracts in fourth-and fifth-order se-quences using seismic sedimentology:Example from Corpus ChristiBay,Texas[J].AAPG Bulletin,91(7):981-1003.
Zeng Hongliu,Tucker F Hentz.2004.High-frequency sequence stratig-raphy from seismic sedimentology:Applied to Miocene,VermilionBlock50,Tiger Shoal area,offshore Louisiana[J].AAPG Bulle-tin,88(2):153-174.
陆永潮,杜学斌,陈平.2008.油气精细勘探的主要方法体系——地震沉积学研究[J].石油实验地质,30(1):1-5.
林春明,冯志强,张顺.2007.松辽盆地北部白垩纪超层序特征[J].古地理学报,9(6):619-634.
萧徳铭,迟元林,蒙启安,等.2005.松辽盆地北部向斜区岩性油藏勘探认识与实践[M].北京:石油工业出版社,1-65.
郑玉龙,陈春瑞,任林伟.2005.松辽盆地上白垩统陆相遗迹化石及其沉积环境[J].古地理学报,7(3):337-246.
Bouma A H,Stone C G.2000.Fine-grained turbidite systems[J].AAPG Memoir72,SEPMSpecial Publication,No.68:1-19.
Brown AR,Dahm C G,Graebner R J.1981.Astratigraphic case histo-ry using three-dimensional seismic data in the Gulf of Thailand[J].Geophysical Prospecting,29(3):327-349.
Cartwright J,Huuse M.2005.3D seismic technology:The geological‘Hubble[J].AAPG Bulletin,85:1373-1405.
Elliott T.2000.Megaflute erosion surfaces and the initiation of turbiditechannels[J].Geology,28(2):119-122.
Galloway W E,Hobday D K.1983.Terrigenous Clastic DepositionalSystems:Applications to Petroleum,Coal,and Uranium Exploration[M].New York:Springer-Verlag,423.
Gersztenkorn A,Marfurt K J.1999.Eigenstructure-based coherencecomputations as an aid to3-D structural and stratigraphic mapping[J].Geophysics,64:1468-1479.
Johnson KS,Paull C K,Barry J P,et al.2001.Adecadal record of un-derflows from a coastal river into the deep sea[J].Geology,29(11):1019-1022.
Lerche MG.2000.Dynamic modeling of turbidite erosion,transport anddeposition in three dimensions[J].Earth and Planetary Sciences,331:345-351.
Lindsey J P.1989.The Fresnel zone and its interpretive significance[J].The Leading Edge,8(10):33-39.
Marfurt K J,Kirlin R L,Farmer S L,et al.1998.3-D seismic attrib-utes using a semblance-based coherency algorithm[J].Geophysics,63:1150-1165.
Masaferro J R Bourne,Jauffred J C.2004.Three-dimensional seismic vi-sualization of carbonate reservoirs and structures[M].In:Eberli GP,Masaferro J L,et al(eds).Seismic Imaging of Carbonate Reser-voirs and Systems.AAPG Memoir,81:11-42.
Meldahl P R,Heggland B,Bril P de Groot.2001.Identifying faults andgas chimneys using multiattributes and neural networks[J].TheLeading Edge,20:474-478.
Schlager Wolfgang.2000.The future of applied sedimentary geology[J].Journal of Sedimentary Research,70(1):2-9.
Shanmugan G.1999.50years of the turbidite paradigm(1950s-1990s):Deep-water processes and facies models—A critical per-spective[J].Marine and Petroleum Geology,117(1):52-61.
Varnai P.1998.Three-dimensional seismic stratigraphic expression ofPliocene-Pleistocene turbidite systems,northern Green Canyon(off-shore Louisiana),northern Gulf of Mexico[J].AAPG Bulletin,82(5B):986-1012.
Weimer P,Link MH.1991.Seismic Facies and Sedimentary Processesof Submarine Fans and Turbidite Systems[M].New York:Spring-er-Verlag,447.
Zeng Hongliu.1994.Facies-guided3-D Seismic Modeling and Reser-voir Characterization[D].Austin,Texas University of Texas at Aus-tin,164.
Zeng Hongliu,Robert G Loucks.2007.Mapping sediment dispersal pat-terns and associated systems tracts in fourth-and fifth-order se-quences using seismic sedimentology:Example from Corpus ChristiBay,Texas[J].AAPG Bulletin,91(7):981-1003.
Zeng Hongliu,Tucker F Hentz.2004.High-frequency sequence stratig-raphy from seismic sedimentology:Applied to Miocene,VermilionBlock50,Tiger Shoal area,offshore Louisiana[J].AAPG Bulle-tin,88(2):153-174.
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