1. Oversea Business Department, Geophysical Research Institute, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China; 2. CNPC International(Turkmenistan), Beijing 100034, China
Abstract：Fracture-pore type carbonate reservoir has strong heterogeneity and complicated fracture development.The 3D geological modeling relying only on well data and random simulation can not accurately describe reservoir and fracture characteristics，and the historical fitting error of numerical simulation is large，which can not effectively predict the fluid dynamic distribution.In this study，gas fields S on the right bank of the Amu Darya River in Turkmenistan are taken as an example，and a dual media modeling of complex carbonate rock based on seismic data is proposed.The matrix model is constrained by multistage facies control inversion of the inner reservoir of reef shoals，and the multi-attribute fusion fracture prediction technique is used to constrain the fracture model.The reservoir heterogeneity and fracture distribution of the carbonate reservoir are characterized in detail，and the modeling accuracy of complex carbonate rocks is improved.The accuracy of numerical simulation prediction is improved.At the same time，the dual media model and numerical simulation are used to effectively evaluate the reservoir connectivity，accurately judge the direction of the water source，and provide effective information for the formulation of the subsequent development plan.
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