Interdisciplinary Investigation of the CO2 Sequestration in Depleted Shale Gas Formations

 

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.
Performer: 
Stanford University - Panama St.
Website:  Stanford University
Award Number:  FE0004731
Project Duration:  09/15/2010 – 09/30/2013
Total Award Value:  $1,436,888
DOE Share:  $1,147,611
Performer Share:  $289,277
Technology Area:  Geologic Storage Technologies and Simulation and Risk Assessment
Key Technology: 
Location:  Stanford, California

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.

Contact Information

Federal Project Manager 
Joshua Hull: joshua.hull@netl.doe.gov
Technology Manager 
Traci Rodosta: traci.rodosta@netl.doe.gov
Principal Investigator 
Mark Zoback: zoback@stanford.edu
 

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