Effect of CO2${\rm CO}_2$‐Enhanced Oil Recovery on Wave Velocities in Upper Assam Basin DOI
Subrata Borgohain Gogoi, Pranab Boral,

Borkha Mech

et al.

Greenhouse Gases Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract This study examines the impact of flooding on and wave velocities in Upper Assam Basin. Laboratory experiments were conducted 15 consolidated sandstone cores from Naharkatiya Rudrasagar reservoirs ( m depth) one unconsolidated sand pack (lightweight proppant, Houston, USA). Samples, with porosities ranging 8.03% to 47.00%, saturated before injection. Results indicate reduces (compressional velocity, m/s) by 4–11% samples over 25% pack, less pronounced but significant reductions (shear m/s). These changes are influenced pore pressure, porosity, temperature. Higher pressure amplifies velocity increasing fluid density altering bulk modulus. In sandstones, diminish whereas sands exhibit greater sensitivity due their lower Theoretical analyses confirm that observed laboratory settings representative situ conditions. findings highlight value time‐lapse seismic monitoring tracking plumes optimizing enhanced oil recovery strategies. The integration techniques improves reservoir management while supporting carbon sequestration initiatives Basin similar geological settings.

Language: Английский

Effect of CO2${\rm CO}_2$‐Enhanced Oil Recovery on Wave Velocities in Upper Assam Basin DOI
Subrata Borgohain Gogoi, Pranab Boral,

Borkha Mech

et al.

Greenhouse Gases Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract This study examines the impact of flooding on and wave velocities in Upper Assam Basin. Laboratory experiments were conducted 15 consolidated sandstone cores from Naharkatiya Rudrasagar reservoirs ( m depth) one unconsolidated sand pack (lightweight proppant, Houston, USA). Samples, with porosities ranging 8.03% to 47.00%, saturated before injection. Results indicate reduces (compressional velocity, m/s) by 4–11% samples over 25% pack, less pronounced but significant reductions (shear m/s). These changes are influenced pore pressure, porosity, temperature. Higher pressure amplifies velocity increasing fluid density altering bulk modulus. In sandstones, diminish whereas sands exhibit greater sensitivity due their lower Theoretical analyses confirm that observed laboratory settings representative situ conditions. findings highlight value time‐lapse seismic monitoring tracking plumes optimizing enhanced oil recovery strategies. The integration techniques improves reservoir management while supporting carbon sequestration initiatives Basin similar geological settings.

Language: Английский

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