Use of Real-Time Data in Well Integrity Management
- Ashish Arvind Chitale (BP) | William R. Blosser (BP Exploration) | Brian J. Arias (BP Exploration)
- Document ID
- Society of Petroleum Engineers
- SPE Intelligent Energy Conference and Exhibition, 23-25 March, Utrecht, The Netherlands
- Publication Date
- Document Type
- Conference Paper
- 2010. Society of Petroleum Engineers
- 3 Production and Well Operations, 2.3.4 Real-time Optimization, 2.4.5 Gravel pack design & evaluation, 2.3 Completion Monitoring Systems/Intelligent Wells, 4.3.4 Scale, 4.1.5 Processing Equipment, 5.6.4 Drillstem/Well Testing, 2.4.3 Sand/Solids Control
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Real time data provides key information that can be used to monitor oil and gas wells to maintain well integrity and avoid costly failures. Integrity management is at the heart of BP's operating philosophy. The company uses new technologies enabled by real time data to allow continuous improvement in well integrity management.
The use of real time rate calculations has provided technical assurance to maximize production within BP's deepwater subsea field development. Production has been increased by 10,000 stb/D while maintaining well integrity and process safety assurance within safe engineering operating limits. Similarly, the Na Kika fields apply advanced flux based tools and sand alarming capabilities to protect wells from sand completion failure. Additional fields are currently using BP proprietary technology to monitor and proactively alarm on wellhead annulus pressures, successfully mitigating the well integrity risk of collapsed tubing.
Well integrity management is critical for any operating company. In deep water environments where subsea well costs can exceed 100 million dollars, loss of well integrity can have serious consequences associated with production capability, loss of containment, reputational damage, and regulatory license to operate. Application of new technologies is transforming simplistic past practices into highly sophisticated automated monitoring and advanced control mechanisms enabled by real time data. These technologies have a vital role in delivering advanced capabilities so that engineers can make better decisions, faster, to help retain long term value.
This paper, through case studies, will demonstrate the ability to use innovative workflows and technologies, enabled by real time data, to identify and mitigate well integrity risks. Key risks such as annulus leaks, sand control failures, and mechanical failures are monitored using Field of the Future technologies. These examples from different operating areas of BP will demonstrate continuous improvement, showing how engineers use these technologies to maintain well integrity.
Well Integrity is not rocket science; it is not even a science in itself. Yet, technology can be applied to better manage the physical and mechanical risks. Maintaining well integrity is all about protecting the basic mechanical integrity through the implementation of good basic petroleum engineering and leveraging the use of real time, or near real-time, data sets. Well integrity is an outcome of following good basic well operational practice and monitoring the flow of data. In some respects, maintaining well integrity is extremely mundane because a great part of maintaining well integrity is about reporting, recording and analyzing data, lots of data. This is the industry opportunity to apply technology more effectively and to optimise the flow of data and the workflows that definer how engineers use the data. A well could be considered as just another piece of plant and we should always consider integrity through the various bits of production plant in totality; integrity from "sandface to export??. There is one major difference with a well though. Unlike a docile piece of plant that may be shut down, isolated, and bled down, the well needs to be considered as a dynamic "living?? piece of plant.
|File Size||346 KB||Number of Pages||6|