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Abstract

ExxonMobil Exploration & Production Malaysia Inc. (EMEPMI) operates 17 offshore oil and gas fields in the Malay Basin. EMEPMI performs well integrity operations and maintenance on 37 platforms involving 781 wells with 1215 completions (single and dual wells). There are about 350 wells on gas lift, 1215 surface controlled subsurface safety valves (SCSSV), with 6943 tree and wellhead valves. The fields produce approximately 150,000 bopd and 1.2 BCFD of gas.

In this mature asset, many wells were previously un-competitive or uneconomic to flow. In today’s higher-price environment, all wells are being re-evaluated for their production contribution. This paper describes the issues and actions taken for these “moth-balled” idle wells to ensure that they comply with the EMEPMI well integrity surveillance and maintenance standards for offshore platform facilities. At the same time, the effort was broadened to check and ensure the integrity of all active completions. The EMEPMI well integrity surveillance and maintenance standards are based on API and industry standards, as well as the global ExxonMobil well integrity standards.