Charged Wellbore Casing Controlled Source Electromagnetics (CWC-CSEM) for Reservoir Imaging and Monitoring


An example of preliminary CWC-CSEM modeling efforts at FWU.
An example of preliminary CWC-CSEM modeling efforts at FWU.
Colorado School of Mines
Website:  Colorado School of Mines
Award Number:  FE0028320
Project Duration:  10/01/2016 – 12/31/2019
Total Award Value:  $1,256,895
DOE Share:  $1,005,516
Performer Share:  $251,379
Technology Area:  Monitoring, Verification, Accounting, and Assessment
Key Technology:  MVAA: Subsurface Monitoring
Location:  Golden, Colorado

Project Description

The project is developing and deploying a system of technologies consisting of electromagnetic data acquisition, coupled multiphysics imaging, and reservoir model enhancement to understand the migration and long-term distribution of CO2 in the subsurface. The objective of the project is to develop an integrated approach with methodologies that better inform the reservoir model. The effort is using time-lapse geophysical monitoring based on a controlled-source electromagnetic method (CSEM) to measure changes in the subsurface resulting from CO2 injection. Legacy wellbore casings are being used as long vertical current injection electrodes for the CSEM monitoring effort that is being performed at an active enhanced oil recovery CO2 injection site. The field effort is being designed to demonstrate the responsiveness of the CSEM method to changes in subsurface fluid distribution and is using survey designs guided by reservoir models to conduct time-lapse monitoring in the field. Simulations and data inversions are being performed and the effort will integrate the reservoir’s refined static and dynamic properties into the reservoir model to improve the prediction and characterization of CO2 distribution and migration over time.

Project Benefits

The project will benefit the effort to more accurately monitor and track the fate of CO2 in a storage site. This effort contributes to understanding the subsurface processes associated with CO2 injection and storage and contributes to the U.S. Department of Energy (DOE) Carbon Storage Program’s goal of ensuring storage permanence.

Contact Information

Federal Project Manager 
Mary Underwood:
Technology Manager 
Traci Rodosta:
Principal Investigator 
Yaoguo Li:

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