Abstract
Long-term deep sequestration of CO2-rich brine in deep formations of ultramafic rock (e.g.Oman serpentinized harzburgite) will be feasible only if a network of hydraulic cracks could be produced and made to grow for years and decades.Fraccing of gas- or oil-bearing shales has a similar objective.The following points are planned to be made in the presentation in Golden.1) A branching of fracture can be analyzed only if the fracture is modeled by a band with triaxial tensorial damage, for which the new smooth Lagrangian crack band model is effective.2) To achieve a progressive growth of the fracture network one will need to manipulate the osmotic pressure gradients by changing alkali metal ion concentration in pore fluid.3) A standardized experimental framework to measure rock permeability at various ion concentrations and various osmotic pressure gradients is needed, and will be presented.
Original language | English (US) |
---|---|
Title of host publication | 58th US Rock Mechanics / Geomechanics Symposium 2024, ARMA 2024 |
Publisher | American Rock Mechanics Association (ARMA) |
ISBN (Electronic) | 9798331305086 |
DOIs | |
State | Published - 2024 |
Event | 58th US Rock Mechanics / Geomechanics Symposium 2024, ARMA 2024 - Golden, United States Duration: Jun 23 2024 → Jun 26 2024 |
Publication series
Name | 58th US Rock Mechanics / Geomechanics Symposium 2024, ARMA 2024 |
---|
Conference
Conference | 58th US Rock Mechanics / Geomechanics Symposium 2024, ARMA 2024 |
---|---|
Country/Territory | United States |
City | Golden |
Period | 6/23/24 → 6/26/24 |
Funding
This work was supported as part of the Center on Geo-Process in Mineral Carbon Storage, an Energy Frontier Research Center (EFRC) funded by the U.S.Department of Energy, Office of Science, Basic Energy Sciences at the University of Minnesota under award DE-SC0023429.
ASJC Scopus subject areas
- Geochemistry and Petrology
- Geophysics