塔里木盆地塔河油田奥陶系碳酸盐岩油藏开发地质研究中的若干问题

SEVERAL PROBLEMS IN STUDY OF DEVELOPMENT PROGRAMME OF ORDOVICIAN CARBONATE RESERVOIRS IN TAHE OILFIELD, TARIM BASIN

摘要: 塔河油田奥陶系油藏为岩溶缝洞型碳酸盐岩储层,油藏类型十分特殊。有利的油气储层主要分布在奥陶系风化面以下0～120m范围内,油藏开发地质特征具有明显的多样性和严重的非均质性。通过对该油藏开发特征的分析和认识,指出了该油藏目前开发研究中的若干问题。与此同时,对此类油藏开发研究中一些理论概念和相关认识诸如岩溶缝洞系统的概念、储层非均质性、双重介质的界定、储层随机建模以及开发动态研究的重要性等问题进行了分析和讨论。
- 奥陶系 /
- 缝洞型碳酸盐岩储层 /
- 开发地质 /
- 塔河油田
Abstract: The Ordovician carbonate reservoirs in Tahe oilfield are dominated by karst-fractures carbonates with special characteristics.The favourable reservoirs were mainly distributed below 1-120m of weathering crust of Lower Ordovician.The reservoirs showed obvious diversities and severe heterogeneity.In order to design suitable development programme, some concepts such as fissured cave system, reservoir heterogeneity, and determining of double medium, reservoir stochastic modelling and importance of reservoir performance were analyzed and discussed.
- Ordovician /
- carbonate reservoir /
- development geology /
- Tahe oilfield

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