Well integrity management has been highlighted as a major theme in oil and gas industry after Macond blowout incident in 2010. JX Nippon Oil & Gas Exploration Corporation（“JX Nippon”）has established and implemented systems named JX Well Integrity Management System（“JX WIMS”）and JX Well Delivery Management System（“JX WDMS”）, by which JX Nippon is enabled to effectively manage well integrity risk at any stage of well life cycle. As a part of well integrity management process, thorough audits were carried out on all JX Nipponʼs operating wells to investigate its degree of compliance with corporate standard. Several wells revealing integrity issues such as not complied well design nor loss of well barrier effectiveness were identified, then those risks were assessed and mitigated accordingly. This paper presents on JX WIMS and an example of achievement on a gas lift producer whose risk was successfully mitigated to ALARP and deemed acceptable for continuing production.
