An Innovative Multi-Reservoir Permanent Downhole Monitoring System through a Single Well

Al-Omair, Abdullatif; Ukaegbu, Orji O.; Alshafie, Muhammed; Shafiq, Muhammad; Almarri, Abdullah

doi:10.2118/126158-ms

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…We have reached conclusions similar to others within the oil and gas industry: splices and seals are a critical weak point that needs to be engineered for reliability. Al-Omair et al, 2009 used welded junctions to deploy four quartz pressure gauges off a single TEC, to address this problem and minimize possible leakage points for a multi-zone completion in a Saudi Aramco field [7]. Rubbers and plastics are known to be subject to enhanced deterioration upon exposure to wet CO 2 .…”

Section: Lessons Learned -Prior Experiencementioning

confidence: 99%

The Modular Borehole Monitoring Program: a research program to optimize well-based monitoring for geologic carbon sequestration

et al. 2014

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Understanding the impacts caused by injection of large volumes of CO 2 in the deep subsurface necessitates a comprehensive monitoring strategy. While surface-based and other remote geophysical methods can provide information on the general morphology of a CO 2 plume, verification of the geochemical conditions and validation of the remote sensing data requires measurements from boreholes that penetrate the storage formation. Unfortunately, the high cost of drilling deep wellbores and deploying instrumentation systems constrains the number of dedicated monitoring borings as well as limits the technologies that can be incorporated in a borehole completion. The objective of the Modular Borehole Monitoring (MBM) Program was to develop a robust suite of well-based tools optimized for subsurface monitoring of CO 2 that could meet the needs of a comprehensive well-based monitoring program. It should have enough flexibility to be easily reconfigured for various reservoir geometries and geologies. The MBM Program sought to provide storage operators with a turn-key fully engineered design that incorporated key technologies, function over the decades long time-span necessary for post-closure reservoir monitoring, and meet industry acceptable risk profiles for deep-well installations.While still within the conceptual design phase of the MBM program, the SECARB Anthropogenic Test in Citronelle, Alabama, USA was identified as a deployment site for our engineered monitoring systems. The initial step in designing the Citronelle MBM system was to down-select from the various monitoring tools available to include technologies that we considered essential to any program. Monitoring methods selected included U-tube geochemical sampling, discrete quartz pressure and temperature gauges, an integrated fibre-optic bundle consisting of distributed temperature and heat-pulse sensing, and a sparse string of conventional 3C-geophones. While not originally planned within the initial MBM work scope, the fibre-optic cable was able to also be used for the emergent technology of distributed acoustic sensing. The MBM monitoring string was installed in March, 2012. To date, the Citronelle MBM instruments continue to operate reliably. Results and lessons learned from the Citronelle MBM deployment are addressed along with examples of data being collected.

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Section: Lessons Learned -Prior Experiencementioning

confidence: 99%

The Modular Borehole Monitoring Program: a research program to optimize well-based monitoring for geologic carbon sequestration

et al. 2014

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Advanced Fault Diagnosis and Prognostic Maintenance Strategies for Continuous Operation of Permanent Downhole Gauge Systems

Mohammed,

Anuar,

Kamat

et al. 2024

Adipec

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"Over the past thirty years, Permanent Downhole Gauge (PDG) systems have become essential in reservoir and production engineering. However, maintaining their ongoing functioning requires reliable fault diagnosis and proactive maintenance procedures. This study explores fault diagnosis methodologies and prognostic maintenance approaches specifically designed for PDG systems. The objective is to improve the reliability and longevity of these systems while minimizing non-productive time (NPT). By doing so, this research aims to enhance production efficiency and reduce costs in oil and gas development and production processes. We perform a comprehensive evaluation of the current PDG behaviour, examine data collected from the field, and employ diverse fault diagnostic techniques to compile a list of spare components for internal maintenance purposes. The Plant Information platform consolidates data for monitoring and surveillance, facilitating real-time remote monitoring of all PDGs from an office setting. A significant obstacle faced by oil and gas operators is the decline in production efficiency and the rise in costs associated with development and production procedures. This study examines various approaches for identifying defects and their underlying causes, as well as predictive maintenance techniques aimed at ensuring the reliability and durability of PDG systems. We investigate prognostic maintenance strategies, including as condition monitoring and predictive analytics, to identify imminent failures and improve maintenance schedules. The integration of these several techniques aims to enhance the dependability and efficiency of permanent downhole gauge systems, enabling uninterrupted data collection and prompt repairs to prevent expensive periods of inactivity. We assess the efficiency and real-world use of the suggested methods by creating a defect diagnosis database, maintaining an inventory of spare parts on-site, and integrating them with the Plant Information (PI) platform. The utilization of fault detection methods, root cause databases, various troubleshooting techniques, and the accessibility of spare parts collectively enhance the maintenance of PDG systems, hence ensuring their consistent and reliable operation in oil and gas production environments. This exercise enhances the flow rate by approximately 5 kbopd, reduces downtime by 47%, and minimizes the cost of slickline intervention by 35%."

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Permenant Downhole Monitoring System PDHMS Reliability

Sadah¹,

Kadem²,

Yateem³

et al. 2020

International Petroleum Technology Conference

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An Innovative Multi-Reservoir Permanent Downhole Monitoring System through a Single Well

Cited by 4 publications

References 5 publications

The Modular Borehole Monitoring Program: a research program to optimize well-based monitoring for geologic carbon sequestration

The Modular Borehole Monitoring Program: a research program to optimize well-based monitoring for geologic carbon sequestration

Advanced Fault Diagnosis and Prognostic Maintenance Strategies for Continuous Operation of Permanent Downhole Gauge Systems

Permenant Downhole Monitoring System PDHMS Reliability

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