Challenges in Developing a Marginal Thin Sand Reservoir: A Case Study from South Sultanate of Oman of Unlocking Potential

摘要

This paper discusses the multidisciplinary challenges faced while assessing and developing a thin sandstone reservoir with limited connectivity and no aquifer support, and how gathered data and surveillance, combined with tests and engineering sense, turned this reservoir into a feasible development, unlocking its full potential that was overseen earlier. A case study is presented with the Lessons learned to be replicated. The reservoir in question will be referred to as IRS. Picking and identifying the reservoir on openhole logs is difficult, as it has been overseen in the past. Few existing wells where logs are available have been re-assessed and IRS perforated and tested, yielding very positive results. Few dedicated horizontal wells were drilled with encouraging results, core has been acquired, and preparation for a water injection pilot is undergoing to close the loop with the pressure support story. All results are presented as a case study in this paper.