The high recovery performance of steam-assisted gravity drainage (SAGD) makes it a popular option for heavy oil resources. Currently, most of the heavy oil reservoirs developed by SAGD in China are in the late development phase, with high energy consumption due to reduced thermal efficiency. The use of SAGD wind-down processes involving CO2 in combination with steam for heavy oil recovery is considered as a viable alternative to limit energy consumption, and also reduce the amount of greenhouse gas emissions by leaving CO2 behind in the reservoir. Study reveals that the dissolution and demulsification of CO2 in crude oil can reduce the viscosity of emulsified heavy oil by more than 50%. When the steam chamber temperature reaches 200
Publications
- Article type
- Year
- Co-author
Article type
Year
Open Access
Original Article
Issue
Advances in Geo-Energy Research 2022, 6 (4): 276-285
Published: 08 May 2022
Downloads:68
total 1