Video: The Agbami Digital Oilfield Solution and Reliability Assessment of Intelligent Well Completions
- Chijioke Ibeh (Chevron) | Oluwabiyi Awotiku (Chevron) | Alan Ledergerber (Chevron) | Ibrahim Ugah (Chevron) | Kunle Awonuga (Chevron)
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- Offshore Technology Conference
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- 2015. Copyright is retained by the author. This presentation is distributed by SPE with the permission of the author. Contact the author for permission to use material from this presentation.
- 7.2.1 Risk, Uncertainty and Risk Assessment, 2.3 Well Monitoring Systems, 2.3.4 Real-time Optimization, 1.6 Drilling Operations, 7.2 Risk Management and Decision-Making, 2 Well Completion, 4.3.4 Scale, 7 Management and Information, 2 Well completion
- Agbami IWC Technology, IWC Performance Assessment, Agbami Intelligent Well Completions, Agbami IWC Assessment
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As at the time the Agbami field came on stream in July 2008, the Digital Oilfield (DOF) solution and indeed the Intelligent Well Completion (IWC) technology were still not widely accepted in the oil and gas industry as a cost-effective, reliable and sustainable method of completing and operating deepwater wells. Agbami development was indeed the first full-scale adoption of this technology for StarDeep Water Petroleum Limited (an affiliate of Chevron Corporation) and since then several other deepwater field developments have leveraged the best practices and lessons learned from the Agbami deployment.
Suffice to say that effective cost management is critical to the success of any business especially in the deepwater environment where rig rates and associated costs are high. Most operators tend to adopt a “lean” completions design and cost philosophy since drilling costs will typically not vary much especially in a “post-Macondo” world. One area of immediate completions cost savings is usually the elimination of jewelries like IWC equipment in the completions design. And if you try asking a good old company man, the most likely answer will be “just keep it simple”. Though “keeping it simple” will minimize the installation risks and costs in the short term, this has to be balanced with long term surveillance requirements and non-intrusive well optimization and intervention opportunities.
This paper discusses the Agbami digital oilfield solution architecture with emphasis on the reliability of the IWC technology deployed. This reliability assessment focuses primarily on analyses of the downhole IWC equipment (sensors and control valves) installed in both producer and injector wells using statistical methods. With over 6 years after first oil, results confirm that most of the Agbami IWC equipment still have high reliability except for a few wells were we have observed failure of the metal-to-metal seal in the interval control valves. The full DOF solution implementation in Agbami has been a critical success factor in guaranteeing the reliability of the wells over the years thus minimizing intervention costs. The cross-functional collaboration within the Agbami team and ongoing engagements with the vendors to identify and implement equipment design improvement opportunities continues to deliver tremendous value.