EVALUATION AND ANALYSIS FARRUD RESERVOIR IN GHANI-FIELD BY USING PETROLEUM EXPERTS SOFTWARE (MBAL)
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Date
2022
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جامعة سبها
Abstract
This project report covers the analysis of reservoir performance both historical and predicted
under the given factors and variables that affect production from reservoir data that has obtained,
The data collected from "Farrud" reservoir, the simulated data are calculated depending on sum
of RRR29, RRR31 and RRR32 wells, and analyzed by using MBAL software. This software is
applies material balance equation and other reservoir properties in the order to achieve the
accurate OOIP based on the old OOIP and correct the data to estimate future performance of
reservoir. In this study, different scenarios have been handled to match the old data that
collected from the field. The best model can fit with data was (Schilthuis Steady State Model)
water influx and correct the diffusivity depending on reservoir pressure, the old OOIP was 814
MMSTB and the corrected value of OOIP is 830 MMSTB. So, the results were close to the
productivity that inputted in the production history and doesn’t reached bubble point pressure
which was 1900 psia and the reservoir pressure has been maintained to keep above the bubble
point pressure. Thus, long shut in period in simulated data let the pressure to increase around
150 Psia from the original value. Two scenarios has been conducted to predict the future
performance in this field, first scenario is if the reservoir started producing 500 bbl/day of oil
and 221 Mscf/stb of gas for each well without any injection, and the second scenario under the
injection effect with injection rate 3000 bbl/day with 200000 ppm salinity and the productivity is
6000bbl/day for oil and 2652 Mscf/stb, both scenarios showed great results and didn’t reached
bubble point pressure until 2040, the pressure was 2106 Psia for first scenario and 2073 Psia for
second scenario, the two scenarios could be recommended to the Al-ghani-field in the order to
Improve the productivity.