.... This paper introduces a new approach to access the heavy oil from fractured carbonate reservoirs. CO 2 foam and CO 2 PEF were used to decrease oil saturation after surfactant flooding. Three types of surfactants (nonionic, anionic and cationic) were used for both surfactant and foam flooding. A specially...

... Abstract Low permeability reservoir occupies an important position in China’s petroleum industry, as an important oil industry resource over a period of time in future, which helps to increase reserves and production. Surfactant flooding is one of the most effective ways to improve development...

... is potentially an efficient Enhanced Oil Recovery (EOR) method. chemical flooding methods oil production stability flooding injection drainage experiment surfactant solution foam generation enhanced recovery surfactant flooding setup saturation upstream oil & gas gas flooding foam foam...

... by the new surfactant system has been evaluated. Study of SY Surfactant Flooding Experiment Materials The cores are from C-1 block of Daqing oil field, China, which belongs to low permeability reservoir, gas permeability is about 30×10 −3 µm 2 , and the oil used in the experiment is a mixture...