Gravity flow channel character and reservoir prediction of the Miocene Congo fan basin, West Africa

被引:3
作者
Cui, Hanyun [1 ]
Wu, Peikang [1 ]
Liu, Yongjie [1 ]
Nie, Zhimeng [1 ]
Liu, Yalei [2 ]
Ren, Yuze [2 ]
机构
[1] CNOOC Int Ltd, Beijing 100083, Peoples R China
[2] LandOcean Energy Serv Co Ltd, Beijing 100083, Peoples R China
关键词
Miocene; Congo fan; Gravity flow channel; Reservoir; ARCHITECTURE; EVOLUTION; SYSTEMS;
D O I
10.1016/j.jafrearsci.2015.04.010
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Determining the reservoir distribution of a gravity flow channel is a strongly researched topic that must be solved to address the difficulty of deep-water deposition. This paper takes the Miocene Congo Fan as an example for the analysis of lithological succession, seismic reflection feature and attribute map based on the core, logging, and 3D seismic data. Six primary reservoir depositions are identified; canyon, erosive channel, complex channel, migrated channel, isolated channel, and lobe. The seismic section geometric features and the seismic attributes are used to describe the different types of gravity flow channel structure characteristics and planar features. The GR analog acoustic impedance inversion clearly reveals the reservoir distribution and characteristics in different gravity flow channels; the results indicate that the sand-rich reservoir is at the upper part of the composite and isolated channel, levees and lobes. The reservoir types and distribution characteristics of a gravity flow channel in deep-water fan are important guides for identifying traps in exploration and production. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:15 / 21
页数:7
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