Interdisciplinary Investigation of the CO2 Sequestration in Depleted Shale Gas Formations Email Page
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Performer:  Stanford University Location:  Stanford, California
Project Duration:  09/15/2010 – 09/30/2013 Award Number:  FE0004731
Technology Area:  Geologic Storage Technologies and Simulation and Risk Assessment Total Award Value:  $1,436,888
Key Technology:   DOE Share:  $1,147,611
Performer Share:  $289,277

Scanning electron microscope images of gas shale:<br/>(a) pores are 14-1,590 nm in diameter and<br/>(b) silica rich regions with organic kerogen<br/>(darkly shaded) in the lower left corner. Smaller<br/>pores might be either a tip of a larger pore body<br/>or a pore throat.
Scanning electron microscope images of gas shale:
(a) pores are 14-1,590 nm in diameter and
(b) silica rich regions with organic kerogen
(darkly shaded) in the lower left corner. Smaller
pores might be either a tip of a larger pore body
or a pore throat.

Project Description

The over-arching objective of this project is to conduct a multiscale, multiphysics, interdisciplinary laboratory study that assesses the feasibility of depleted organic-rich gas shale reservoirs for large-scale CO2 sequestration. This project elucidates mechanisms of CO2 injectivity, the formation’s geomechanical response, CO2 transport through fractures and matrix, storage security through a trap and seal framework, and lays the foundation for accurate estimates of storage rates as well as capacity. Experiments provide data for verification and validation of models to estimate CO2 sequestration capacity and storage effectiveness of gas shales under realistic conditions. Four broad research task areas are examined: (1) physical and chemical aspects of CO2/shale interactions, (2) transport and mobility of critical state CO2 in hydrofracs, natural fractures and pores, (3) ground water/shale/stored CO2 interactions, and (4) trap and seal analysis of CO2 storage in gas shale reservoirs. The scope of activities represents more than 124 man months of effort.

Project Benefits

Determine the feasibility of geologic CO2 sequestration in depleted gas shales by examining the physical and chemical processes associated with CO2 storage in organic-rich shales and conducting a series of multiscale, multiphysics, interdisciplinary laboratory, and theoretical studies.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Joshua Hull:
Technology Manager Traci Rodosta:
Principal Investigator Mark Zoback: