Mechanism recognition and application effect analysis of air injection development in ultra-low permeability oil reservoirs

There are few application examples of air drive development technology in ultra-low permeability oil reservoirs in China. The article relies on the air drive development block of H oilfield, and based on the results of core start-up pressure gradient experiment, relative permeability experiment, gas...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-10, Vol.2834 (1), p.12038
Main Author: Xin, Liu
Format: Article
Language:English
Subjects:
Air injection
Experiments
Gas composition
Low temperature
Oil field equipment
Oil fields
Oxidation
Permeability
Reservoirs
Seepage
Technology assessment
Water flooding
Water injection
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Summary:There are few application examples of air drive development technology in ultra-low permeability oil reservoirs in China. The article relies on the air drive development block of H oilfield, and based on the results of core start-up pressure gradient experiment, relative permeability experiment, gas composition experiment, and gas swelling experiment, conducts research and analysis on the seepage mechanism and low-temperature oxidation mechanism of air drive development, demonstrating the advantages of air drive development in oil displacement mechanism of ultra-low permeability oilfield. Based on the basic parameters of oil fields developed by air flooding both domestically and internationally, the specific blocks suitable for air flooding development in H oilfield are selected. The feasibility of conducting air flooding development in low permeability oil fields is demonstrated from three aspects: indoor real core experimental data, safety, and the maturity of existing equipment and technology. At the same time, an analysis is conducted on the development status of the air drive block in H oilfield. By comparing the development effects with adjacent water injection blocks, it is demonstrated that the air drive development effect in ultra-low permeability oilfield is superior to water injection development.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2834/1/012038