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

Xinbian Lu

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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.

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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.

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Available 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.

Key concepts: Karst, Ordovician, Geology, Tarim basin, Carbonate, Cave, Carbonate rock, Geochemistry

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SEVERAL PROBLEMS IN STUDY OF DEVELOPMENT PROGRAMME OF ORDOVICIAN CARBONATE RESERVOIRS IN TAHE OILFIELD, TARIM BASIN — Research Paper | ScholarLens