لخّصلي

This research presents a geological model of a giant Middle Eastern oil reservoir, based on field data from 161 wells. Its primary aim is to determine the reservoir's value and assess modeling feasibility before an investment decision regarding field development. The model, built on PETREL using well logs, seismic maps, facies data, and core tests, seeks to estimate the initial oil volume. Three scenarios were applied, accounting for sensitivity and uncertainty in five variables, to accurately estimate this volume. The oil-water contact (OWC) level is identified as the main uncertain factor due to insufficient data, with only 13% of wells penetrating the Mishrif Formation's water zone. All scenarios indicate enormous oil quantities, confirming the field's importance and the study's value for its development.

This research paper presents a geological model of a giant oil reservoir in the Middle East, based on field data from 161 wells. The research primarily aims to determine the reservoir's value and assess the feasibility of modeling it before making a final investment decision regarding the development of this oil field. Well log data, deviation surveys, interpreted 2D and 3D seismic maps, facies data, and core tests were used to construct the developed geological model through comprehensive interpretation and correlation using the PETREL platform. The geological model primarily aims to estimate the initial oil volume at the reservoir site. Additionally, three scenarios were applied based on the sensitivity and uncertainty of five variables to determine an accurate estimate of the initial oil volume. The oil-water contact level appears to be the main uncertain factor in estimating the oil volume in the reservoirs, as the available geological and field data were insufficient to establish this with certainty, and only 13% of the wells penetrated the water zone in the Mishrif Formation. The results of all scenarios indicate that the reservoir contains enormous quantities of oil in the oil reservoirs, and this large quantity confirms the importance of developing this oil field, and this is where the value of this study comes in.