Autonomous monitoring of wellbore integrity applying Time Reverse Nonlinear Elastic Wave Spectroscopy (TR NEWS) and Fiber Optic Sensing and Communication

The purpose of this project is to develop a long-term wellbore integrity system based on measurement of passive and active seismo-acoustic signals and stress changes in the near-wellbore region that can be deployed in wells for long-term (e.g., decades), unattended monitoring for both wellbore integrity and associated stress changes. The system consists of both wellhead and downhole components based on the combined signals of piezoelectric and/or optical sensors integrated with innovative strategies for both source generation and data analysis.

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Schematic diagram of TR-NEWS system and monitoring targets.

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Autonomous Monitoring of Wellbore Integrity Applying Time Reverse Nonlinear Elastic Wave Spectroscopy (TR NEWS) and Fiber Optic Sensing and Communication (Aug 2018)
Presented by Carly Donahue, Los Alamos National Laboratory, 2018 Carbon Storage and Oil and Natural Gas Technologies Review Meeting, Pittsburgh, PA

Principal Investigator

Paul Johnson

paj@lanl.gov

Project Benefits

This project will develop a cost-effective option (hardware and software) for long-term autonomous monitoring of wells. Such a technology would have broad application in subsurface operations, where maintaining and monitoring wellbore integrity is central to reservoir management strategies. This could include post-closure monitoring of wellbore integrity, as needed for carbon dioxide storage operations. This system can be a cost-effective autonomous option to provide the data necessary to ensure that wellbore integrity is being maintained over time.

Project ID

FWP-FE-853-17-FY17