延长油区侏罗系-上三叠统层序地层与生储盖组合

doi:10.11743/ogg20010411

Oil & Gas Geology ›› 2001, Vol. 22 ›› Issue (4): 337-341.doi: 10.11743/ogg20010411

Previous Articles Next Articles

SEQUENCE STRATIGRAPHY AND SOURCE-RESERVOIR-CAP ASSEMBLAGES OF JURASSIC-UPPER TRIASSIC IN YANCHANG OIL PROVINCE

Luo Jinglan¹, J. Marcelo Ketzer², Li Wenhou¹, Yan Shike³, Wu Fuli³, Li Yuhong³

1. The Key Laboratory of Continental Dynamics, Ministry of Education, Northwest University, Xi'an, Shaanxi;
2. Department of Earth Sciences, Uppsala University, 75236 Uppsala Sweden;
3. Yanchang Petroleum Administration, Yongping Shaanxi

Received:2001-07-06 Online:2001-12-25 Published:2012-01-16

Abstract

Abstract:

Take the Upper Triassic regional erosion surface as sequence boundary,the Jurassic and Triassic terrigenous clastic systems in Yanchang oil province could be divided into upper sequence and lower sequence.The lower sequence (Upper Triassic)is composed of a transgressive system tract(TST)and a highstand system tract(HST).The Upper sequence (Juassic)includes a lowstand system tract(LST)overlain by a transgressive system tract(TST)and a highstand system tract(HST).Three assemblage types can be distinguished according to the disposal relationship of source reservoir cap rock assemblage:1.lithologic reservoirs,characterized by source rocks in the lower part and reservoirs in the upper part,formed during rapid subsidence with high accommodation space.The Chang 7 lacustrine facies and Chang 6 deltaic facies in the lower part of the Lower sequence are the best oil reservoir dispose;2.lithologic structural reservoirs with source rocks in the upper part and reservoirs in the lower part,and self sourced reservoirs developed in the upper part of the lower sequence represented by Chang 2+3 and Chang 1 meandering/anastomosing system. It is the second excellent oil reservoir dispose in the study area.3.structural lithologic reservoirs with source rocks in the lower part and reservoirs in the upper part associated with self sourced reservoirs developed in the upper sequence of fluvial facies(Yan 10-Yan 1 submembers).The hydrocarbon pool forming in reservoirs needs good structural trap due to poor lateral seals.

Key words: Jurassic Upper Triassic, continental sequence stratigraphy, source reservoir cap rock assemblage, Yanchang oil province

CLC Number:

P618.130.2⁺1

Luo Jinglan, J. Marcelo Ketzer, Li Wenhou, Yan Shike, Wu Fuli, Li Yuhong. SEQUENCE STRATIGRAPHY AND SOURCE-RESERVOIR-CAP ASSEMBLAGES OF JURASSIC-UPPER TRIASSIC IN YANCHANG OIL PROVINCE[J]. Oil & Gas Geology, 2001, 22(4): 337-341.

References

[1] Aitken J F,Flint S S.The application of high-resolution sequence stratigraphy to fluvial systems:a case study from the Upper Carboniferous Breathitt Group,eastem Kentucky USA[J].Sedimentology,1995,42(1):3～30
[2] Currie B S.Sequence stratigraphy of nonmarine Jurassic Cretaceous rocks,central Cordillenan foreland basin system[J].GSA Bull,1997,109(6):1 206～1 222
[3] Martinsen O J,Ryseth A,Helland-Hansen W,et al.Stratigraphic base level and fluvial architecture:ericson sandstone(Campanian),rock springs Uplift,SW Wyoming,USA[J].Sedimentology,1999,46(2):235～259
[4] 顾家裕.陆相盆地层序地层学格架概念及模式[J].石油勘探与开发,1995,22(4):6 ～10
[5] 徐怀大.陆相层序地层学研究中的某些问题[J].石油与天然气地质,1997,18(2):83～89
[6] 邓宏文,徐长贵,王洪亮.陆东凹陷上侏罗统层序地层与生储盖组合[J].石油与天然气地质,1998,19(4):275～279
[7] 胡受权,泌阳断陷陆相层序外部构型研究[J].现代地质,1998,12(4):567～575
[8] Schumm S A.River response to base-level change:implication for sequence stratigraphy[J].Journal of Geology,1993,101(2):279～294
[9] Shanley K W,McCabe P J.Perspectives on the sequence stratigraphy of continental strata[J].AAPG Bull,1994,78(4):544～568
[10] 李文厚,柳益群,冯乔.川口油田长6段油层组储集层特征与油气富集规律[J ].岩石学报,1998,14(1):118～127
[11] 张富礼,黄舜兴,杨昌贵,等.鄂尔多斯盆地天然气地质[M].北京:地质出版社,1994.1～33
[12] 郑荣才,柳梅青.鄂尔多斯盆地长6油层组古盐度研究[J].石油与天然气地质,1999,20(1):20～25
[13] 谢传礼,何顺利,魏俊之.鄂尔多斯盆地靖安油田上三叠系延长组6段古湖泊学特征[J].石油大学学报,2000,24(1):18～21
[14] 陈建平,黄第藩. 鄂尔多斯盆地东南缘煤矿侏罗系原油油源 [J]. 沉积学报,1997,15(2):100～108
[15] Wright V P,Marriott S B.The sequence stratigraphy of fluvial depositional systems:the role of floodplain sediment storage[J].Sedimentary Geology,1993,86(1):203～210
[16] Shanley K W,McCabe P J.Alluvial architecture in a sequence stratigraphic framework:a case history from the Upper Cretaceous of southern Utah,USA[A].In:Flint S,Bryant I,eds.Quantitative modelling of clastic hydrocarbon reservoirs and o utcrop analogues[C].IAS Special Publication,1993,15:21～56

SEQUENCE STRATIGRAPHY AND SOURCE-RESERVOIR-CAP ASSEMBLAGES OF JURASSIC-UPPER TRIASSIC IN YANCHANG OIL PROVINCE

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics