Analysis of Athabasca Oil Sands Investigates SAGD Performance Variability

摘要

Steam-assisted gravity drainage(SAGD)performance in bitumen-recovery projects in Alberta is affected by geological deposits,reservoir quality,and operational experience.The authors reviewed and analyzed actual field production and injection data for 28 Athabasca oil-sands-deposit SAGD well pairs(WPs).Based on analysis of field-production data,a numerical model was built and calibrated against production data from two of the poorer-performing WPs among the 28 studied.Agreement between simulated and actual cumulative oil and steam/oil ratio(SOR)was within 10% after 6 years of operations on a first-iteration basis.