Hard-extracted reserves, unconventional hydrocarbon sources
| Article # 26_2024 | submitted on 05/29/2024 displayed on website on 09/16/2024 |
| 32 p. | Ivanov D.A., Gudoshnikov A.S., Marquez R. |
| Development features of super-viscous, extra-heavy oil field block under natural drive (Orinoco oil belt) | |
| In this paper, experimental researches carried out in order to reduce uncertainties in the forecast of the production profile of a large project aimed at producing extra-viscous oil by natural depletion. The experiment is unique because its duration was 95 days. The displacement of extra-viscous oil by depletion occurs due to elastic forces (expansion of oil) and those associated with the release of dissolved gas into separate bubbles within a single oil phase. The fact that no separate gas phase forms over a long period (after the pressure lowers below the bubble point pressure) is typical for almost all extra-viscous oils and has been proven by field data and laboratory tests. The degree of influence of this effect has not been well quantified. Nevertheless, under conditions of extraction of extra-viscous oil without the injection of chemical agents, this effect has a critical impact on key reservoir performance parameters, including recoverable oil reserves in the drainage zone of the production well. An overview of the key studies describing the processes occurring during the extraction of extra-heavy oils by displacement natural drive, on the basis of laboratory study and field operations experience is also provided. Keywords: heavy oil, extra-viscous oil, extra-heavy oil field, displacement by natural drive, Orinoco oil belt, Venezuela. |
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| article citation | Ivanov D.A., Gudoshnikov A.S., Marquez R. Osobennosti razrabotki bloka mestorozhdeniya sverkhvyazkoy, sverkhtyazheloy nefti na estestvennom rezhime vytesneniya (neftyanoy poyas Orinoko) [Development features of super-viscous, extra-heavy oil field block under natural drive (Orinoco oil belt)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2024, vol. 19, no. 3, available at: https://www.ngtp.ru/rub/2024/26_2024.html EDN: UHHDBZ |
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Efros D.A. Issledovanie fil'tratsii neodnorodnykh sistem [Studies of heterogeneous flow systems]. Leningrad: Rostoptekhizdat, 1963, 351 p. (In Russ.).
Franco J., Zaleski S., Cordelier Ph. R., Terpolilli P., Tardy P., Bayon Y. A new macroscopic nucleation model for simulation of the solution gas drive in heavy oils. Presented at 5th Canadian petroleum conference (Calgary, June 2004). 2004, p. 106. DOI: 10.2118/2004-106
Kamp A.M., Heny C., Andarcia L., Lago M., Rodriguez A. Experimental investigation of foamy oil solution gas drive. SPE International Thermal Operations and Heavy Oil Symposium, (Porlamar, Margarita Island, Venezuela, March 12-14, 2001). 2001, SPE 69725. DOI: 10.2118/69725-MS
Loughead D.J., Saltuklaroglu M. Lloydminster heavy oil production: Why so unusual, 9th Annual Heavy Oil and Oil Sands Technology Symposium, Calgary, March 11, 1992.
Maini J. Foamy oil flow in heavy oil production. Journal Canadian Petroleum Technology, 1996, vol. 35 (06), no. Pagination Specified. DOI: 10.2118/96-06-01
Mirabal M., Gordillo R., Rojas G., Rodrigues H., Huerta M. Impact of foamy oil mechanism on the Hamaca oil reserves. SPE Latin America/Caribbean Petroleum Engineering Conference (Port-of-Spain, Trinidad, April 23-26, 1996). 1996, SPE 36140. DOI: 10.2118/36140-MS
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