Oil companies are now focusing more and more on the development of tight reservoirs, partly due to the depletion of oil reserves in traditional reservoirs. An example is the transition of development to low-permeability formations (less than 10-3 mkm2) at the N field in Western Siberia. The efficiency of the development of low-permeability reservoirs of an oil field is related to the efficiency of maintaining reservoir pressure provided by the injection of water from different sources and, accordingly, different quality. It is well known that the presence of total suspended solids (TSS) in the injected water, the processes of interaction of water with the reservoir rock and the compatibility of water with reservoir water are negative factors affecting the efficiency of water injection into the reservoir. The article considers the results of filtration tests with different content of TSS in water. Analysis of the results showed the ambiguity of the ongoing processes in the pore medium, possibly associated with the strength of the framework and the structure of the pore space, with the mineral composition of the rock, with the processes of particle association. The analysis showed that the porous medium is clogged not only by the introduced TSS, but also by rock particles that are formed as a result of the interaction of water and rock. In this regard, for the effective development of low-permeability formations, it is proposed to control the level of TSS and their size to a level that ensures their free passage in a porous medium. In addition, it is shown that measures to restore the injectivity of injection wells using acidic compositions should take into account the properties and composition of minerals in the bottomhole zone of wells and TSS.
References
11. Civan F., Near-wellbore formation damage by inorganic and organic precipitates deposition, In: Reservoir Formation Damage, 2016, pp. 819-842, DOI: https://doi.org/10.1016/b978-0-12-801898-9.00024-2
2. Chepkasova E.V., Ivanov M.G., Technological efficiency evaluation applying water like as displacement agent in low permeable formation (In Russ.), Territoriya NEFTEGAZ, 2016, no. 2, pp. 82-86.
3. Tronov V.P., Tronov A.V., Ochistka vod razlichnykh tipov dlya ispol'zovaniya v sisteme PPD (Purification of various types of water for use in the reservoir pressure maintenance system), Kazan: Fen Publ., 2001, 560 p.
4. Boronin S., Tolmacheva K., Osiptsov A. et al., Modelling of injection well capacity with account for permeability damage in the near wellbore zone for oilfelds in Western Siberia (In Russ.), SPE-187806-RU, 2017, DOI:10.2118/187806-RU
5. Borisov G.K., Ishmiyarov E.R., Polyakov M.E. et al., Physical modeling of colmatation processes in the near-well bottom zone of Sredne-Botuobinsky field. Part 1. Physical modeling of colmatation processes in the near-well bottom zone of Sredne-Botuobinsky field (In Russ.), Neftepromyslovoe delo, 2018, no. 11, pp. 73–80, DOI: doi.org/10.30713/0207-2351-2018-11-73-80
6. Kim C., Lee J., Experimental study on the variation of relative permeability due to clay minerals in low salinity water-flooding, J. Pet. Sci. Eng., 2017, V. 151, pp. 292–304, DOI: doi.org/10.1016/j.petrol.2017.01.014
7. Voloshina A.A., Kotenev Yu.A., Physical modeling of pore space clogging in porous medium of low-permeable reservoir (In Russ.), Neft'. Gaz. Novatsii, 2021, no. 9(250), pp. 54–58.
8. Wang L., Clay stabilization in sandstone reservoirs and the perspectives for shale reservoirs, Advances in Colloid and Interface Science, 2020, V. 276, DOI: doi.org/10.1016/j.cis.2019.102087
9. Yu X., Wang Y., Yang Y. et al., Effect of particle content on relative permeabilities in water flooding, Journal of Petroleum Science and Engineering, 2021, V. 205, DOI: doi.org/10.1016/j.petrol.2021.108856
10. Al-Yaseri A., Al Mukainah H., Lebedev M. et al., Impact of fines and rock wettability on reservoir formation damage, Geophysical Prospecting, 2016, V. 64, pp. 860–874, DOI: doi.org/10.1111/1365-2478.12379
11. Folomeev A.E., Davidenko I.S., Vakhrushev S.A. et al., Adaptation of the technology for bottom-hole zones treatment under conditions of scaling at the Sorovskoye field (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2019, no. 11, pp. 124–129, DOI: 10.24887/0028-2448-2019-11-124-129
12. Folomeev A.E., Khatmullin A.R., Imamutdinova A.A. et al., Acidizing technology adaptation for tight sandstone formations (In Russ.), Neft'.Gaz.Novatsii, 2022, no. 8, pp. 77–82,
13. Gusakov V.N., Telin A.G., Pasynkov A.G. et al., Monitoring and a choice of bottomhole zones treatment technologies at RN-Yuganskneftegaz OOO fields (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2007, no. 11, pp. 57–61.
14. Economides M.J., Nolte K.G., Reservoir stimulation, New York: John Willey & Sons LTD Publ., 2000, 856 p.
