SPWLA 24th Formation Evaluation Symposium of Japan,
2018. Society of Petrophysicists and Well Log Analysts
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As a result of a new exploration strategy focused on deep rather than shallow formations, the largest gas condensate reservoir has been discovered recently in Bohai Bay, China. Due to the complex fluid behaviour, appropriate characterization of the in-situ fluids and relevant flow testing are needed for the valuable insight they can give into gas condensate reservoir forecasting. This paper discusses a methodology for reliable production evaluation with the aid of in-situ fluid characterization and comprehensive well log analysis. The results are a key factor both to be fed into drillstem test (DST) design and equipment optimization for better production evaluation design and for an optimal production prediction for reserve booking. Based on the efficient and reliable productivity evaluation, we can make real-time decisions on whether to perform a DST, which DST equipment to use, where to do the test. In this paper, a new solution is proposed based on the problem elaborated above.
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