Development of formation damage diagnosis workflow, application on hammam faraun reservoir: A case study, Gulf of Suez, Egypt.

Numerous studies carried out on Formation damage, but fewer investigations wereconducted for the ideal diagnosis workflow. More understanding of geology, reservoircharacteristics, and production data is essential to define the source, causes, and suitabletreatment technique of formation damage for each well.In this paper, a workflow for the formation damage diagnosis is introduced to findlocation, potential source, root causes and recommend a suitable treatment method of theformation damage. The suggested workflow depends on vital steps including (1) planning andorganizing the delivered data for solving the investigated problem, (2) collecting and analyzingall available data, (3) integration of the all geological, reservoir and production data, in additionthe suggested workflow was applied on Hammam Faraun reservoir in an Egyptian oil field. Inthis reservoir, an integration of the available geological, reservoir, and production data wasperformed to make confident prognosis or diagnoses of formation damage and achieve a completevision of the sources of formation damage and suggest solutions and treatments.Therefore, in assessing formation damage in the studied well, all aspects of the well andits history were integrated in this study, including: core analysis, XRD, mineralogy, waterchemistry, reservoir geology, offset well production, reservoir fluids, production history, drillingfluids, cementing program, completion, stimulation and workover history, perforation reports.The diagnosis of the formation damage problem revealed that the suggested workflowwas effective and can help diagnose formation damage problems in the entire oil and gas wells.The integration of geological, reservoir, production data led to accurate analysis, two sources ofdamage could be responsible for the damage in the studied well based on the geological andengineering data analysis and integration. Firstly, low quality water, secondly the using of aninappropriate stimulation fluid and sensitive formation minerals to fluids, and finally treatmentwith proper additives is highly recommended.Key words: XRD; stimulation; formation damage; workflow; integration.