Study Of Improved Oil Recoverythrough Air FoamFlooding

In recent years, Study of Improved Oil Recovery through air foam flooding is more and more important. Methods in gas injection EOR methods increased in recent years a larger proportion. Air resources are inexhaustible. The use of air injection on-site examples of enhanced oil recovery less on the technical and economic success of the project is limited. In terms of our country. Most of hypertonic light into the reservoir have been in high water cut stage, water has a lot of flooding near the limits of recovery, to continue the exploitation of water flooding, will continue to reduce the overall efficiency. But there is still a significant portion of crude oil to remain in the ground, in the absence of gas (CO2, natural gas, etc.), the higher the cost of chemical flooding, the attempt to inject air to further enhance oil recovery will become a new point of potential. By flooding the domestic air bubble technology to fully research, understand the current development of the air bubble in the level of flooding as well as the problems faced. At the same time, the status of Zhongyuan Oil Field reservoir study. On this basis, respectively, to carry out the air bubble interior flooding technology research and field trials. Study of indoor air injection mechanism of oil displacement has a comprehensive and in-depth understanding, a better understanding of the mechanism, oxygen consumption, to understand and grasp the Zhongyuan Oilfield drive high-pressure air injection, as well as oxidation reaction occurs when the formation of miscible displacement conditions to study the displacement components in the air before and after the Change, research took place after the oxidation reaction of the nature of crude oil and to determine at different temperatures, with different injection pressures, different pressure cases the degree of reaction of oxygen and air flooding the final harvest the rate of recovery for the design of gas injection in accordance with the parameters. Enhance oil recovery for the provision of a new technology. Conduct on-site test-drive transfer to deepen the theoretical study of the bubble and the mechanism research; recognize foam sealing edge drive transfer capacity of channel seepage; recognize through practice in the reservoir high water cut stage hypertonic air bubble transfer drive's ability to enhance oil recovery; bubble transfer drive to explore to adapt to the geological conditions and promote the use of the potential; verify the economic feasibility.