Abstract
Abstract Technical & operational integrity issues and their resolutions are dealt with leading to the concept selection for a high H2S (33% H2S) gas development in Abu Dhabi. Two strategic principles underpinned the concept selection and field development plan: (1) minimise Health, Safety and Environment (HSE) risks and (2) employ field proven technology and practices as far as practicable. Sulphur production instead of acid gas injection was rejected as a viable development option due to its environmental impact and the poor prospects for sulphur marketing. Developmental technical issues included sulphur precipitation in the production tubing and pipelines, and material selection for the sour gas well completions and the gathering & injection pipelines. Materials selection was based on designing out all catastrophic failures and corrosion mitigation & monitoring of progressive corrosion failure mechanisms. Operational issues were related to minimal facility manning and competence assurance of sour gas operatives.
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