Due to the depletion of traditional oil and gas reservoirs and a change in volumes of production, therefore issues of extracting oil from oil and gas source rocks are becoming more important. The petroleum industry has to constantly develop various pilot trials to develop technology for maintaining production performance. Since 2018 pilot works have been launched to develop approaches to the domanic deposits development in the Samara and Orenburg regions operated by Rosneft Oil Company. Hydraulic fracturing operations have been performed in over 20 wells for the last 5 years in these regions. The paper presents the analysis results of the hydraulic fracturing operations in 4 vertical wells. Operations in 3 wells were completed with crosslinked guar-based fluid, whereas 1 well was fractured with the use of polyacrylamide based high viscosity friction reducer (HVFR). A one-dimensional geomechanical model of the nearest well was used as a basis for the hydraulic fracturing modeling of wells participating in the pilot project. As the result of this study it was found that integrated approach should be conducted while preparing to hydraulic fracturing operations in domanic deposits, including the laboratory core studies, 1D geomechanical modeling, fracture geometry measurements, proper perforation interval selection, bottom hole gauge use, fracturing technology selection (fluid type, proppant type and mass, slurry rate, etc.), use of surface and downhole equipment rated for 100 MPa. Further research and pilot works are necessary to determine the optimal well completion and hydraulic fracturing technology for the domanic deposits development in the Samara and Orenburg regions. The goal of this work is to define factors influencing the technological success of hydraulic fracturing in domanic deposits.
References
1. Economides M.J., Nolte K.G., Reservoir stimulation, JohnWilley & Sons, Ltd., New York, 2000, 848 p.
2. Stupakova A.V., Kalmykov G.A. et al., Domanic deposits of the Volga-Ural basin - types of section, formation conditions and prospects of oil and gas potential
(In Russ.), Georesursy, 2017, Special Issue, pp. 112–124.
3. Fjar E., Holt R.M., Raaen A.M., Horsrud P., Petroleum related rock mechanics. – Elsevier, 2008. – 514 p.
4. Roberts G.A., Chipperfield S.T., Miller W.K., The evolution of a high near-wellbore pressure loss treatment strategy for the Australian cooper basin, SPE-63029-MS, 2000, DOI: https://doi.org/10.2118/63029-MS
5. Zoback M., Kohli A., Unconventional reservoir geomechanics: Shale gas, tight oil, and induced seismicity, 2019, 496 p., DOI: https://doi.org/10.1017/9781316091869
6. Barree R.D., Miskimins J.L., Gilbert J.V., Diagnostic fracture injection tests: Common mistakes, misfires, and misdiagnoses, SPE-169539-PA, 2015,
DOI: https://doi.org/10.2118/169539-PA
7. Vinod P.S., Flindt M.L., Card R.J., Mitchell J.P., Dynamic fluid-loss studies in low-permeability formations with natural fractures, SPE-37486-MS, 1997,
DOI: https://doi.org/10.2118/37486-MS
8. Aksakov A.V., Borshchuk O.S., Zheltova I.S. et al., Corporate fracturing simulator: from a mathematical model to the software development (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2016, no. 11, pp. 35–40.
9. Miller B.D., Warembourg P.A., Prepack technique using fine sand improves results of fracturing and fracture acidizing treatments, SPE-5643-MS, 1975,
