Unconsolidated sand was packed on a slotted-liner coupon in large-scale sand retention tests (SRT) and was subjected to several stress conditions, corresponding to the evolving stress conditions during the life cycle of a SAGD producer. Cumulative produced sand at the end of testing was measured as the indicator for sand control performance. Retained permeability was calculated by measuring pressure drops near the liner and was considered as the quantification of the flow performance of the liner. Experimental results indicate the liner performance is significantly affected by the stress induced compaction of the oil sand. The stress results in the sand compaction, leading to a denser sand, hence, a lower porosity and permeability. The lower porosity results in a higher pore-scale flow velocity, which can trigger more fines mobilization, hence, a higher skin buildup. With respect to sanding, the higher stress can stabilize the sand bridges: Increased normal forces between near-slot sand particles result in a higher inter-particle friction, hence, more stable sand bridges and less produced sand. The lower and upper bounds of slot window are governed by plugging and sand production, respectively. Experimental results indicate an upward shift in both the lower and upper bounds at elevated stress conditions
Skip Nav Destination
Close
How the Design Criteria for Slotted Liners in SAGD are Affected by Stress Buildup Around the Liner
M. Mahmoudi
M. Mahmoudi
RGL Reservoir Management
Search for other works by this author on:
Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, Washington, June 2018.
Paper Number:
ARMA-2018-642
Published:
June 17 2018
Citation
Roostaei, M., Guo, Y., Velayati, A., Nouri, A., Fattahpour, V., and M. Mahmoudi. "How the Design Criteria for Slotted Liners in SAGD are Affected by Stress Buildup Around the Liner." Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, Washington, June 2018.
Download citation file:
Close
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Pay-Per-View Access
$20.00
Advertisement
Advertisement
Suggested Reading
Advertisement