ANALYSIS OF FLUID FILTRATION MECHANISMS IN FRACTURED RESERVOIRS
Turgazinov I.K. Mukanov D.B.
2022National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2022#1Issue 451135 - 144 pp.
Carbonate reservoirs play a vital role in the world’s gas and oil resources. With the expanding exploration, many deep fractured offshore reservoirs have been found. It has strong anisotropy. Therefore, fractured carbonate reservoir and its flow mechanism have been a challenging research topic in reservoir engineering. However, the existing theories cannot properly describe the fluid flow mechanisms in fractured porous media. The matrix and fracture system have different flow properties and depend on several parameters, such as interporosity flow, storage coefficient. According to the different combination of natural fracture, cave and matrix in carbonate reservoir it is not easy task to build analytical model for this kind of reservoirs. Based on the comprehensive study on the existing theories and methods, the flow features of fractures and the fluid exchange between different porous media as well as the analytical models have been thoroughly reviewed. In this paper this type of reservoir is divided into two model: dual-medium model and triple-medium model. The flow mechanics of naturally fractured reservoir is discussed. Different kinds of physical and mathematical models are established. This paper can be used for the future development and studies of fluid flow model in fractured reservoirs, because there are numerous carbonate fields in Kazakhstan.
Carbonate reservoirs , Filtration mechanisms , Fractured reservoirs , Mathematical model , Matrix characterization
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Kazakh-British Technical University, Almaty, Kazakhstan
Kazakh-British Technical University
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