Nanoparticle Injection Technology for Remediating Leaks of CO2 Storage Formation

 

Figure 1: An electro-migration test unit
Figure 1: An electro-migration test unit
Performer: 
University of Colorado - 428 UCB
Website:  University of Colorado
Award Number:  FE0026514
Project Duration:  10/01/2015 – 12/31/2018
Total Award Value:  $1,040,000
DOE Share:  $778,475
Performer Share:  $261,525
Technology Area:  Geologic Storage
Key Technology: 
Location:  Boulder, Colorado

Project Description

University of Colorado is developing a new technology that can repair wellbore leakage through the electrochemical injection of nanoparticles while simultaneously removing harmful ions out of the wellbore. Wellbore healing agents are being tested and selected based upon their ability to penetrate deep into the leaking areas and better enhance the mechanical and transport properties of well cement (Figure 1). A small-scale laboratory prototype wellbore test system is being developed which extends the electro-migration effect. The effectiveness of the proposed technology is being evaluated through systematic testing of the cementitious materials that are enhanced with the select nanoparticles. Finally, a multiphysics numerical model is being developed to simulate the remediation process utilizing this new technology.

Project Benefits

The outcome of the project is a new technology that can be used to better repair wellbore leakage. The technology includes an electrochemical injection method and healing agents (nanoparticles) and a new numerical simulation model designed to simulate and predict the performance of the new repair technology. The technology densifies the cement materials and reduces the corrosion risk by removing some of the harmful ions in the system. It is believed that with the development and application of this new technology, the service life of existing wellbores can be substantially extended.

Contact Information

Federal Project Manager 
Bruce Brown: bruce.brown@netl.doe.gov
Technology Manager 
Traci Rodosta: traci.rodosta@netl.doe.gov
Principal Investigator 
Yunping Xi: yunping.xi@colorado.edu
 

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