The impact of development of reservoir on well productivity

Introduction. The changing of the productivity index during the life cycle of a oilfield is important. As it allows an objective assessment of the  potential productivity of wells, which can later be used for special types of analysis and production control.

Goal. Assessment of the impact of reservoir development on the current productivity index of wells

Materials and methods. Materials of Welltesting. The productivity index is determined by steady-state and non- state flow well testing. Methods of processing initial data by methods of mathematical statistics are applied

Results. The results are shown on the example a oilfield of the Western Siberia. Estimates are based on the correlation between actual productivity index and a complex parameter. The results show allow determining the potential productivity index of vertical and horizontal wells, predicting the current productivity index of horizontal production wells, and testing the effectiveness of Wellwork.

Findings. Approach of the interpretation allows to evaluate the impact of development on current well productivity index (within the confidence intervals)

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