Abstract
Steam-Alternating-Solvent (SAS) process is a new promising recovery process for the production of heavy oils and bitumen resources. The process is used the advantages of the SAGD and VAPEX processes. This study presents a numerical simulation study of SAS process in fractured reservoirs which involves injecting steam and solvent alternately, and the basic SAGD well configurations. This simulation study investigated the effect of steam and alternately solvent injection into the prototype reservoir model under various reservoir and operating conditions on oil recovery. Dual and single porosity and permeability systems for both SAS and SAGD processes were also investigated. The injection schedule for alternating steam and solvent injection by running various sensitivities on fracture orientations, injection schedule, and pressure differential between injector and producer wells was studied to investigate the performance of SAS and SAGD processes in heavy oil reservoirs. Oil production rate for SAS process was higher than that of the SAGD process. The pumping schedules for the SAS process showed that the high production was achieved by injecting steam for a year and solvent for half the time. Higher injector-producer well pressure differential showed better productivity compared to a low pressure differential between injector and producer wells.
| Original language | English |
|---|---|
| Title of host publication | Canadian International Petroleum Conference 2007 |
| Publisher | Petroleum Society of Canada |
| ISBN (Print) | 9781613991138 |
| Publication status | Published - 2007 |
| Event | Canadian International Petroleum Conference 2007 - Calgary, Canada Duration: 12 Jun 2007 → 14 Jun 2007 |
Conference
| Conference | Canadian International Petroleum Conference 2007 |
|---|---|
| Abbreviated title | CIPC 2007 |
| Country/Territory | Canada |
| City | Calgary |
| Period | 12/06/07 → 14/06/07 |
ASJC Scopus subject areas
- Geochemistry and Petrology
- Energy Engineering and Power Technology