TY - GEN
T1 - Recovery rate sensitivity analysis for fractured carbonate rocks
AU - Andrianov, N.
AU - Nick, H. M.
N1 - Publisher Copyright:
© 2018 Society of Petroleum Engineers. All rights reserved.
PY - 2018
Y1 - 2018
N2 - We model the experimental results on waterflooding of fractured chalk block using a numerical simulator and demonstrate that the oil recovery depends nonlinearly on the applied differential pressure. We argue that for small flow velocities, the recovery is mostly affected by capillary forces, and for higher flow velocities–by viscous forces. This interplay is analysed using a sensitivity study for different values of the applied differential pressure. For the test cases considered, we obtain a range of boundary pressures which yield optimal waterflood efficiency. The results are presented for both brine and smart water, which is represented by a relative permeability function with reduced residual oil saturation.
AB - We model the experimental results on waterflooding of fractured chalk block using a numerical simulator and demonstrate that the oil recovery depends nonlinearly on the applied differential pressure. We argue that for small flow velocities, the recovery is mostly affected by capillary forces, and for higher flow velocities–by viscous forces. This interplay is analysed using a sensitivity study for different values of the applied differential pressure. For the test cases considered, we obtain a range of boundary pressures which yield optimal waterflood efficiency. The results are presented for both brine and smart water, which is represented by a relative permeability function with reduced residual oil saturation.
UR - http://www.scopus.com/inward/record.url?scp=85083938220&partnerID=8YFLogxK
M3 - Conference article in proceedings
AN - SCOPUS:85083938220
T3 - 80th EAGE Conference and Exhibition 2018: Opportunities Presented by the Energy Transition
BT - 80th EAGE Conference and Exhibition 2018
PB - European Association of Geoscientists and Engineers
T2 - 80th EAGE Conference and Exhibition 2018
Y2 - 11 June 2018 through 14 June 2018
ER -