Current Status and Development Direction of Low-Carbon Exploitation Technology for Heavy Oil

With the strategic goal of “carbon peaking and carbon neutral” in China, new requirements are also put forward for thermal recovery heavy oil. In view problems excessive greenhouse gas emission, low steam utilization rate, poor economic efficiency, limited reservoir application stimulation replacement technology emerging technologies medium- low-temperature fluid, solvent-assisted high-temperature injection, solvent-based waterless situ electric heating-assisted discussed terms technical principles, parameters, experimental/field effects, potential. The results, techno-economic potential low-carbon oil summarized future development directions trends anticipated. study’s findings indicate that some have been tested field, such as HWVP, EMVAPEX, AH-VAPEX, LASER, ESEIEH, can be developed by relying on original well groups production reduce emissions, CO2, about 80% improve crude 5% to 10%, while concerned outstanding effects increasing rate lowering upfront capital investment. Some significantly increase lower initial expenditure, enable solvent recycling, among other things. Among them, COBEEOR N-SOLV amount asphaltene output oil, enhance API recovered provide strong advantages. CSP, CHSI, hot water injection were indoor two-dimensional three-dimensional experiments validate their feasibility, propane, butane solvents initially screened technologies’ mechanisms revealed lay groundwork pilot projects. executive summary research will serve a guide extraction China.