From 360 Deg Health Safety Environment Initiatives on the Rig Site to Structured HSE Strategy: A Field Case in Abu Al Bukhoosh Field.
- Alexandra Duguay (Total Abu Al Bukhoosh) | Bernard Baccino (Total Abu Al Bukhoosh) | Philippe Essel (Total)
- Document ID
- Society of Petroleum Engineers
- Abu Dhabi International Petroleum Conference and Exhibition, 11-14 November , Abu Dhabi, UAE
- Publication Date
- Document Type
- Conference Paper
- 2012. Society of Petroleum Engineers
- 1.6.7 Geosteering / Reservoir Navigation, 1.7 Pressure Management, 5.2.1 Phase Behavior and PVT Measurements, 1.6.5 Drilling Time Analysis, 7.1.8 Asset Integrity, 1.12.2 Logging While Drilling, 1.1 Well Planning, 7.2.1 Risk, Uncertainty and Risk Assessment, 3.1.6 Gas Lift, 5.7.2 Recovery Factors, 1.6 Drilling Operations, 6.2.8 Ergonomics, 6.5.3 Waste Management, 6.1.5 Human Resources, Competence and Training, 1.10 Drilling Equipment, 7.2.4 Statistical Techniques for Managing Risk
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TOTAL Abu Al Bukhoosh (TABK) has initated a well sequence with the Perro Negro 2 rig (PN2); a Jackup MODU. The rig contract started early January 2010 and may be extended till end of 2015, based on HSE and technical performances.
Since day one, it has been decided to boost the HSE performance with robust Management Leadership, Engineering HSE and ergonomics, and working on the Employees behavior. This well known drilling industry approach has been augmented by TABK decision to surpass general standards. Two additional Safety Officers providing 24 hours HSE coverage were hired by the Rig Contractor. One Rig Site Safety Advisor was mobilized by TABK. Their constant presence provides a close working relationship with the front line workers and Team Leaders. Several audits and ‘'360 Deg'' HSE initiatives were able to increase the HSE awareness of all.
PN2 has no recordable incident since 900 days. Initially, the HSE initiative and audit plans were based on the experience of the Managers offshore and onshore and not really linked to a formal ranking of the risks.
New sophisticated tools are being developed in the Oil & Gas Industry to rank risks: For example, TABK HSE and Asset Integrity Departments are working on Technological Risk Assessment and Threat Registers. Multi-yearly mitigation measures and action plans are proposed. The well recognized ‘'likelihood-consequences'' matrix has been adopted also for rig operations. It allows for highlighting the risks per area and the main population involved, ranks the areas per overall risk, and thus develops an audit/frequency plan related to those risks.
With such structured and formalized HSE strategy, risks are well captured, type and frequency of the audits are straight forward, and barriers are implemented for a residual risk ALARP.
This paper will explain in greater detail how this was achieved, the challenges that were encountered during the implementation of the tool, and how the Team intends to continue to add value in such a new HSE culture orientation.
ABK Field is located in the Arabian Gulf at the northern edge of the territorial waters of the Emirate of Abu Dhabi. The Field is situated 180 Km from Abu Dhabi City and 40 Km away from Das Island. It spans approximately 30 square kilometers. See Figure A.1.
TOTAL operates the Abu Al Bukhoosh's Oil Field as per a concession awarded in 1973. The Operator is also responsible of Khuff Gas Operation on behalf of the state-owned Company ADNOC. Gas and associated condensates belong, according to the concessions, to the Emirate of Abu Dhabi.
The first well, AK1, was drilled in August 1969 with First Field production in 1974. Since then, the Field has expansed steadily and significantly, with a total of 8 subsea wells, 14 Platforms, 106 well slots. On top of the H2S, depletion and anti collision issues, the complexity of the wells is increasing with for example long kilometric departure (up to 3000 m), 300 up to 1000 m open hole drains drilled in Geosteering mode in sometimes a thin layer of 2 m height, multilateral design (6 drains max per well), selective gas lifted completion, Shared wellheads for slot reduction… The purpose of this apparent complexity is simply an oil drainage optimization: TOTAL is proud to highlight some recovery factors above 50%.
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