On the basis of steam thermal recovery, Deshi carries out multi element thermal fluid injection technology services, upgrades traditional heavy oil thermal recovery technology services, and creates multi element intelligent mixed phase oil displacement/throughput technology services to provide customers with supporting services. Suitable for high-temperature and high-pressure thermal recovery services in shallow heavy oil reservoirs, thin interbedded heavy oil reservoirs, heavy oil reservoirs after multiple rounds of steam injection, strong edge water reservoirs, and ultra heavy oil reservoirs.
Based on the high-pressure combustion injection mechanism of rocket engines, air and fuel (natural gas, diesel, crude oil) are fully burned under high-pressure sealed conditions to generate high-temperature and high-pressure flue gas. After mixing with water and cooling down, a multi-component and multi flow mixed fluid is formed, namely a multi-media thermal fluid, which includes nitrogen gas, carbon dioxide, steam, and liquid water. The entire mass and energy are injected into the reservoir through the wellbore. Through the comprehensive mechanism of thermal viscosity reduction, solution viscosity reduction, elastic drive, foam drive, gravity drive, miscible flow profile control, etc., crude oil fluidity can be greatly improved, production capacity can be improved, water cut can be reduced, and oil recovery can be significantly improved.
