Estimate of Radial Drilling Technology Efficiency for the Bashkir Operational Oilfields Objects of Perm Krai
- 1 — Perm National Research Polytechnic University
- 2 — Branch of LLC «LUKOIL-Engineering» «PermNIPIneft»
- 3 — Perm National Research Polytechnic University
Abstract
The radial drilling technology efficiency for carbonate bashkir deposits of Perm Krai is considered. The geological structure of a productive part of bashkir layer is characterized by high degree of heterogeneity that promotes while drilling radial channels involvement in development additional interlayers that earlier was not drained. During the analysis the main geological process parameters affecting drilling technology efficiency were revealed. According to the dynamics of average daily oil production growth, palettes were built to forecast additional oil production as a result of radial drilling activities. Using the pallets, it is possible to predict the total additional oil production, well operating time with the effect of radial drilling and average daily oil production growth for each year. It was found that hydrochloric acid treatments performed on wells prior to radial drilling significantly reduce the effectiveness of radial drilling technology. For such wells, the value of the correction is statistically substantiated, which reduces the predictive estimate of the increase in oil production. A model was built to assess the increase in oil production in the first year after the event and an algorithm for calculating the total additional oil production was developed using linear discriminant analysis. For the resulting model, errors are calculated that are compared with the forecast efficiency of standard methods for oil-producing enterprises. This model shows a much more accurate correspondence of forecast results to actual technology application results. The probability of the event high efficiency increases significantly with a more detailed approach to the selection of wells for radial drilling. According to the forecast methodology, the technology’s efficiency was calculated and recommendations for its implementation for the wells of the Bashkir production objects were made in the interests of an oil-producing enterprise.
References
- Ilyushin P.Yu., Rakhimzyanov R.M., Solov'ev D.Yu., Kolychev I.Yu. Analysis of geological and technical measures to increase the productivity of production wells in oil fields of the Perm Krai. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo. 2015. Vol. 14. N 15, p. 81-89 (in Russian).
- Chumakov G.N., Zotikov V.I., Kolychev I.Yu., Galkin S.V. Efficiency analysis of the use of cyclic fluid injection in fields with various geological and technological conditions. Neftyanoe khozyaistvo. 2014. N 9, p. 96-99 (in Russian).
- Koltyrin A.N. Improving the efficiency of fracturing technology on a carbonate type reservoir. Neftepromyslovoe delo. 2016. N 10, p. 29-32 (in Russian).
- Kochnev A.A., Zotikov V.I., Galkin S.V. Analysis of the influence of geological and technological indicators on the effectiveness of radial drilling technology by the example of operational facilities in the Perm Krai. Izvestiya Tomskogo politekhnicheskogo universiteta. Inzhiniring georesursov. 2018. Vol. 329. N 12, p. 20-29 (in Russian).
- Mukhametshin V.V. Elimination of uncertainties in solving problems of impact on the bottom-hole zone of wells. Izvestiya Tomskogo politekhnicheskogo universiteta. Inzhiniring georesursov. 2017. Vol. 328. N 7, p. 40 (in Russian).
- Novokreshchennykh D.V., Raspopov A.V. Prospects for the development of radial drilling technologies in the Perm Krai fields. Neftyanoe khozyaistvo. 2014. N 3, p. 54-57 (in Russian).
- Raspopov A.V., Novokreshchennykh D.V. Analysis of the results of the application of intensification methods on carbonate reservoirs of Perm Krai deposits. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiya. Neftegazovoe i gornoe delo. 2014. Vol. 13. N 10, p. 73-82 (in Russian).
- Repina V.A., Galkin V.I., Galkin S.V. The use of integrated accounting of petrophysical characteristics in the adaptation of geological and hydrodynamic models (for example, the Visean deposits of the Gondyrevsky oil field). Zapiski Gornogo Instituta. 2018. Vol. 231, p. 268-274. DOI: 10.25515/PMI.2018.3.268 (in Russian).
- Rogachev M.K., Mukhametshin V.V. Monitoring and regulation of the process of hydrochloric acid impact on the bottomhole zone of wells according to geological and field data. Zapiski Gornogo Instituta. 2018. Vol. 231, p. 275-280. DOI: 10.25515/RMI.2018.3.275 (in Russian).
- Elliott S. Сoiled-tubing method drills radial laterals to improve oil production from a depleted reservoir. World Oil. 2011. N 10. p. 57-64.
- Efimov A.A., Galkin S.V., Savitckii Ia.V., Galkin V.I. Estimation of heterogeneity of oil & gas field carbonate reservoirs by means of computer simulation of core x-ray tomography data. Ecology. Environment and Conservation. 2015. Vol. 21. p. 79-85.
- Dickinson W., Dykstra H., Nees J.M., Dickinson E. The Ultrashort Radius Radial System Applied to Thermal Recovery of Heavy Oil. Society of Petroleum Engineers. 1992. N 24087, р. 56-59. SPE-24087-MS. DOI: 10.2118/24087-MS