Characteristics of the Lower Devonian Reservoir Sedimentology in Block 438B, Oued Mya Basin , Algeria
详细信息
- 责任者：Zheng Rongcai (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zhang Tianling
- 刊名：Journal of Chengdu University of Technology
- 出版年：2011
- 卷期：38(5)
- 关键词：储集层 ; reservoirs ; 沉积学 ; sedimentology ; 阿尔及利亚 ; Algeria
- 页码：p.481-486
- 图表：illus., 1 table, 10 refs.
- 分类号：1003
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
By using drilling cores,logging data and sequence-lithofacies palaeogeography mapping techniques,the authors make a detailed study on the characteristics of Lower Devonian reservoir sedimentology in Block 438B,Oued Mya Basin,Algerian in this paper.Block 438B is located in north-central Oued Mya Basin.It is a Paleozoic-Mesozoic superimposed basin rich in oil and gas.In Block 438B,There develop two types of depositional systems of continental shelf and barrier island-shore in the Lower Devonian.They have a good hydrocarbon source-reservoir-cap assemblage and exploration potential.The barrier island-shore system is composed of barrier sand dams,tidal channels,washover fans,lagoons and tidal flats.The results of reservoir prediction and evaluation based on the reservoir sedimentology indicate that the reservoir is mainly controlled by barrier sand dam and washover fan microfacies during HST.The two sedimentary microfacies are the major exploration targets.