Exploring and producing deepwater reservoirs pose significant challenges to companies due to the high exploration, development and production costs. Great uncertainties and risk exist in the evaluation of deep water reservoir because of the environment, sparse well control, and lack of direct measurement of reservoir properties. Proper modeling of deepwater reservoir provides companies with tools to evaluate these reservoirs and quantify the risks associated with their development. This paper will describe an applicable approach in developing detailed geological models constrained by 3D seismic data in a complex and faulted turbidities field. This approach was developed in X field which has a complex structure deposited in deepwater environment. The study area is located in deepwater area with water depth of around 800 meters. The faulted structure of this field is often associated with classical λ faults a nd Y faults, provides serious restrictions when building the framework model. Construction of a realistic 3D facies m odel in heterogeneous reservoir is affected by significant uncertainties when based only well information. Integration of additional constraints such as 3D seismic data and sedimentary concept can significantly improve the accuracy of reservoir model. The objective of the proposed approach was: 1. to construct an accurate framework model for complex and faulted field. 2. to integrate both geological and seismic information in a coherent fine-grid model. 3. to account for uncertainties in heterogeneity distribution.


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