Modern Pressure Transient Analysis of Petroleum Reservoirs by Tarek Al-Arbi Omar Ganat

Author:Tarek Al-Arbi Omar Ganat
Language: eng
Format: epub
ISBN: 9783031288890
Publisher: Springer Nature Switzerland

4.10 Estimate Test Rate and Determine Flow Rate Sequence

A prediction of the estimated flow rates, and a timing for the drawdown and build-up phases, should be included in the test design. To meet the test objectives, the flow rate or flow rates must be high enough to cause a properly measured pressure response. At the same time, the maximum flow rate must be minimal enough to match the rate achieved during the test. Typically, the following operational considerations restrict the flow rate during the test:Flow rate and pressure constraints. Some rate restrictions have an impact on the flow rate itself. The rate can also be regulated to minimize the overall pressure drawdown imposed on the reservoir or to manage the pressure at the wellhead or sand face. There is another limitation restricting the flow rate, for instance, capacity of the facilities, bubble point/ dew point pressure, minimum rate to lift the fluid, allowable disposal of produced fluids, sand production, and formation damage.

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