Effect of CO2-enriched water on fracture pressure in Sandstone and Shale Rocks

Authors

Muhammad Shehryar, Department of Petroleum Engineering, College of Petroleum and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
Arshad Raza, Department of Petroleum Engineering, College of Petroleum and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi ArabiaFollow
Mohamed Mahmoud, Department of Petroleum Engineering, College of Petroleum and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
Mobeen Murtaza, Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
Muhammad Shahzad Kamal, Center for Integrative Petroleum Research, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

Article Type

Research Paper

Abstract

Low-permeability reservoirs play an indispensable role in sustainable energy strategies; a good understanding of fracture behavior is essential. This study uses carbonated water injection for fracture pressure assessment to examine the fracture pressure response of Kentucky Sandstone and Eagle Ford Shale low-permeability rock formations. The Kentucky Sandstone shows porosity levels between 10% to 12% along with 0.98 mD permeability whereas the Eagle Ford Shale exhibits lower porosity at 2.6% combined with 21.39 μD permeability. The core samples received CO2 as complete CO2 dissipation before the start of injection under 900 psi pressure. The obtained results indicated that fracture initiation occurred at a lower pressure in Kentucky Sandstone than Eagle Ford Shale. The pure CO2-based and carbonated water-based fracturing weaken both rocks, but sandstone at a higher rate. The technique of carbonated water is found promising, with the additional benefit that geochemical activity arises due to carbonated water.

Keywords

Fracture pressure; Carbonated water injection; Low-permeability rocks; CO2 utilization; Hydraulic Fracturing

Recommended Citation

Shehryar, Muhammad; Raza, Arshad; Mahmoud, Mohamed; Murtaza, Mobeen; and Kamal, Muhammad Shahzad (2026) "Effect of CO2-enriched water on fracture pressure in Sandstone and Shale Rocks," Egyptian Journal of Petroleum: Vol. 35 : Iss. 1 , Article 9.
Available at: https://doi.org/10.62593/2090-2468.1094

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