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Hindi Capturing Uncertainty for New Field Development Plan Influenced by Pressure Depletion
*Corresponding Author:
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Copyright: © 2020 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Dealing with subsurface uncertainties in formulating a new field development plan will always a challenge especially with the absence of data. This paper will discuss on subsurface approach in integrating limited reservoir and appraisal wells data with nearby field performance and regional geological understanding to address the pressure depletion uncertainty observed in the field despite no production. This paper demonstrates a structured workflow from reservoir pressure calibration in the dynamic model during initialization up to multiple prediction runs for depletion strategy evaluation. It started with in-depth analysis of available data recorded from exploration/appraisal wells and nearby field performance. Then, a tank model was built to predict baseline pressure depletion trend by establishing pressure communication with nearby field. The forecasted pressure depletion was then transferred into dynamic model, in which pseudo-water producers were introduced to calibrate the reservoir pressure, and subsequently generate range of possible reservoir pressure depletion trends. This variable were then captured in Uncertainty Analysis workflow and followed by probabilistic production forecast.
