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Carbon Sequestration
Geologic Project Descriptions
Geologic Sequestration of CO2 in a Depleted Oil Reservoir:
A Comprehensive Modeling and Site Monitoring Project
Project # FWP-FEW34895 & 02FEO402-AC04
Primary Performing Organization:
Sandia National Laboratory & Los Alamos National Laboratory
This project will make use of unique test opportunities for a pilot-scale field experiment in a pressure depleted oil reservoir to predict and monitor the migration and ultimate fate of injected carbon dioxide (CO2). The models and data developed will be used to predict storage capacity and physical and chemical changes in reservoir properties, such as fluid composition, porosity, permeability, and phase relations. Science and technology gaps related to engineering aspects of CO2 sequestration will be identified in this study. In addition, a better understanding of CO2/reservoir interaction will improve enhanced oil recovery (EOR) flooding practices.
R&D gaps related to the sequestration of CO2 in depleted oil reservoirs include: the need to understand coupled physicochemical processes involving CO2, water, oil, and reservoir rock; better estimates of the capacity of reservoirs for long-term sequestration; the ultimate fate of injected CO2; and improved remote (geophysical) monitoring technologies for accurately determining the dispersion of injected CO2. These gaps will be addressed by this project with the ultimate project goal of better understanding, predicting, and monitoring CO2 sequestration in a depleted sandstone oil reservoir.
In this case, injection into the subject reservoir will be through an inactive well, while a producing well and two shutoff wells are used for monitoring.
![Geologic Sequestration](https://webarchive.library.unt.edu/eot2008/20090118200739im_/http://www.netl.doe.gov/technologies/carbon_seq/core_rd/geologic/M-27_Geologic-Sequestration.jpg)
Figure 1: Project field site for testing CO2 sequestration
in
a depleted oil reservoir near Hobbs, New Mexico.
A comprehensive suite of computer simulations, laboratory tests, and field measurements will be used to understand, predict, and monitor the geochemical and hydro-geologic processes involved.
Contact:
Project Manager:Andrea McNemar, Andrea.McNemar@netl.doe.gov
Related Papers and Publications:
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