In the present paper three possible ways of air injection process development are shown: the method of pushing oil with air without combustion front occurrence, in-situ combustion (ISC), and thermogas treatment, or, using the American terminology, high pressure air injection (HPAI). The field’s properties that determine which way in-situ combustion process will develop are identified. One way to determine in which of these three ways the process will develop is to study the oxidation characteristics using the pressurised differential scanning calorimetry (PDSC). For the improved study of the combustion process DSC experiments of oil samples oxidation reactivity, oil-saturated core and other actively reactive substances establishment are necessary. It is shown how oil can change its reaction activity in the presence of the reservoir core samples. The unsteady type of oil (tarry light oil) has been studied, oxidation of which is accompanied by transition of resins to secondary asphaltenes, which in the presence of core significantly increases the amount of fuel.
References
1. Murav'ev V.M., Eksploatatsiya neftyanykh skvazhin (Operation of oil wells)b
Moscow – Leningrad: Gostoptekhizdat Publ., 1947, 260 p.
2. Zatsepin V.V., Maksutov R.A., The current state of the industrial application
of WAG (In Russ.), Neftepromyslovoe delo, 2009, no. 7, pp. 13 – 21.
3. Bokserman A.A., Grishin P.A., Isaeva A.V., Tsukanov A.A., Collected papers
“Teoriya i praktika sovremennykh metodov intensifikatsii dobychi nefti i
uvelicheniya nefteotdachi plastov” (Theory and practice of modern methods
of oil well stimulation and EOR), Proceedings of International Scientific
and Practical Conference, 23 - 25 May 2012, Retchitsa, Gomel': Polespechat'
Publ., 2012, pp. 208.
4. Montes A.R., Gutierrez D., Moore R.G. et al., Is high pressure air injection
(HPAI) simply a flue-gas flood? Journal of Canadian Petroleum Tecnology,
2010, V. 49, no. 2, p. 56.
5. Mohiuddin Z., Saaid I.M., Raja A., Anua N.A., Modeling of light oil recovery
through air injection in Malaysian reservoirs, ASIMMOD, 2007,
http://www.mcc.cmu.ac.th/ASIMMOD2007/Paper/D05_Zeeshan%20Mohiuddin.
pdf.
6. Fassihi M.R., Brigham W.E., Ramey H.J., Reaction kinetics of in-situ combustion, Part 1. Observations, SPE Journal, 1984, August, pp. 399-407.
7. Sarathi P.S., In-situ combustion handbook – principles and practices, Tulsa,
BDM Petroleum Technologies, – 1999, 424 p.
8. Joseph C. Pusch W.H., A field comparison of wet and dry combustion, JCPT,
1980, no. 32, pp. 1523-1528.
9. Standard handbook of petroleum and natural gas engineering: edited by
Lyons W.C., Plisga G.J., Gulf Professional Publishing, Second Edition, 1568 p.
