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oa Characterization of Ahmadi Reservoir of Bahrain Field with DFN Model Using Transient Well Testing
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, GEO 2010, Mar 2010, cp-248-00006
Abstract
The Ab formation of the Ahmadi group in is one of the most difficult reservoirs to produce in Bahrain<br>Field. It has tight matrix with low permeability and complex fracture system makes it difficult to<br>produce. Hence, the understanding of such fractured systems is essential for modeling and improving<br>the production and ultimate recovery from this reservoir. To help with that, Discrete Fractured Network<br>(DFN) modeling has been used to characterize this fractured reservoir. If integrated with other data<br>from the field, DFN can provide more representative fractured models. Transient Pressure Welltesting,<br>a widely known applied reservoir characterization technique, can be used to validate the suggested DFN models.<br>This paper presents the work that incorporates a sensitivity analysis study used to test and investigate<br>the parameters that have a direct effect on the curve signature of the transient pressure welltest<br>analysis and their interpretations.<br>Different customized DFN models were built and simulated to obtain the pressure measurements under<br>different scenarios. Various pressure derivative curves were generated and compared to investigate<br>the sensitivity of fracture parameters on the signature responses.<br>The study concludes with actual field cases from the Ab fractured reservoir.