New theory and method of fluvial reservoir architecture study: Concepts, contents and characterization of offshore oilfield fluvial compound sand-body architecture
Hu Guang-Yi1,2, Xiao Da-Kun1,2, Fan Ting-En1,2, Song Lai-Ming1,2, Chen Fei1,2, Jing Yong-Quan1,2, Gao Yu-Fei1,2
1 State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China; 2 CNOOC Research Institute Co.,Ltd.,Beijing 100028,China
Abstract The architecture theory and characterization method of fluvial reservoir,which were based on dense wells data of onshore oilfields,have become relatively mature after decades of research. Nevertheless,it is challenging to apply this theory and method to offshore oilfields,where only sparse wells drilled. Through years of exploration,our research team proposes a new architecture theory and characterization method for fluvial reservoir of offshore oilfield by combining well data with seismic data and taking compound sand-body as major research target.compared with previous study,this new approach employs technologies such as 3D prototype model reconstruction,seismic architecture facies prediction and seismic driving deterministic geological reservoir modeling to detailedly study the 5th,6th and 7th architecture units of fluvial reservoir(compound channel belt,single channel belt and compound point bar),which shows obvious advantages on substrata division and correlation and discontinuous permeation barriers prediction in development phase. At present,there are still challenges applying this theory and method to fine geological modeling and numerical simulation. It's important to make full use of seismic data and develop artificial intelligence ways to improve seismic interpretation.
Fund:Financially supported by the National Science and Technology Major Project(No.2011ZX05024-001)
About author: Hu Guang-Yi,born in 1961,Ph.D.,professional engineer,is the director of the CNOOC Institute Development Research Department. He is mainly engaged in oil and gas field exploration and development of geological research and production management. E-mail: hugy@cnooc.com.cn.
Cite this article:
Hu Guang-Yi,Xiao Da-Kun,Fan Ting-En et al. New theory and method of fluvial reservoir architecture study: Concepts, contents and characterization of offshore oilfield fluvial compound sand-body architecture[J]. JOPC, 2019, 21(1): 143-159.
Hu Guang-Yi,Xiao Da-Kun,Fan Ting-En et al. New theory and method of fluvial reservoir architecture study: Concepts, contents and characterization of offshore oilfield fluvial compound sand-body architecture[J]. JOPC, 2019, 21(1): 143-159.
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