Home > Archive > No. 3–4 (195–196) 2024 > 87–99
Geology & Geochemistry of Combustible Minerals No. 3–4 (195–196) 2024, 87–99
https://doi.org/10.15407/ggcm2024.195-196.087
Vasyl HARASYMCHUK1, Halyna MEDVID1, Oleh CHEBAN2, Olha TELEHUZ1
1 Institute of Geology and Geochemistry of Combustible Minerals of National Academy of Sciences of Ukraine, Lviv, Ukraine, e-mail: igggk@mail.lviv.ua
2 Ltd “NGSN”, Kyiv, Ukraine, e-mail: ovcheb2015@gmail.com
Abstract
The implementation of the principle of ecological conversion during the extraction of hydrocarbons at the Dobrivliany gas condensate field consists in the return of highly mineralized and enriched with microcomponents and organic matter produced waters to depleted horizons.
From 2022 the volumes of produced water reach 275 m3/year. From the beginning of the development of the field to the end of 2023, 572.37 m3 of produced water were from the beginning of the development of the deposit to the end of 2023, 250 m were accumulated and utilized.
It has been established that the chemical parameters of produced waters are identical to those of the aquifers of the field. They have a calcium-sodium chloride, magnesium-sodium composition, with increased mineralization values. Total dissolved solids of waters, depending on the aquifer from which they came, is 28.5–100.3 g/dm3. Its lower values are characteristic of the Badenian-Sarmatian aquifer complex, while higher values are characteristic of the Mesozoic-Carpathian complex. The values of total dissolved solids of these waters almost do not change during 2017–2023.
Total dissolved solids of waste water mixtures in collection tanks (settling tanks) during the period of analytical research was 31.72–77.66 g/dm3. The waters were characterized by a slightly acidic reaction (pH 6.07–6.80). The content of total Ferrum does not exceed 16.8 mg/dm3, ammonium – 105.1 mg/dm3, Bromine – 193 mg/dm3, Iodine – 42.3 mg/dm3, petroleum products – no more than 7.3 mg/dm3, methanol – < 0.1 mg/dm3.
Injection of produced waters is carried out through well No. 4. The reservoir-collector ND-12a in this well is characterized by favourable conditions: average porosity – 19.5 %, permeability – 0.1–0.8 mD, thickness – up to 86 m. It is well isolated by waterproof rocks that provide hydrodynamic closure of the system. The acceptability of well No. 4 is 15 m3/h (360 m3/day). The geochemical compatibility of produced waters with waters of the horizon ND-12a was evaluated, which does not involve precipitation of salts and clogging of the pore space. The results of monitoring studies of the chemical composition of the waters of the Quaternary aquifer of the field site and nearby settlements indicate the absence of the impact of the utilization of produced waters.
Keywords
ecological conversion, gas-condensate field, produced waters, utilization, monitoring
Referenses
Al-Hubail, J., & El-Dash, K. (2006). Managing Disposal of Water Produced with Petroleum in Kuwait. Journal of Environmental Management, 79, 43–50. https://doi.org/10.1016/j.jenvman.2005.05.012
Clark, C. E., & Veil, J. A. (2009). Produced water volumes and management practices in the United States [Technical Report]. https://doi.org/10.2172/1007397
DK “Ukrtranshaz”. (2004). Pidzemni skhovyshcha hazu. Rehlament povernennia suputno-plastovykh vod u nadra (SOU 60.3-30019801-009-2004). Kyiv. [in Ukrainian]
Haneef, T., Mustafa, M. R. U., Farhan Yasin, H. M., Farooq, S., & Hasnain Isa, M. (2020). Study of Ferrate(VI) oxidation for COD removal from wastewater. IOP Conference Series: Earth and Environmental Science, 442, 012007. https://doi.org/10.1088/1755-1315/442/1/012007
Hanson, B. R., & Davies, S. H. (1994). Review of potential technologies for the removal of dissolved components from produced water. Chemical Engineering Research and Design, 72, 176–188.
Harasymchuk, V. Yu., & Kolodii, V. V. (2002). Pokhodzhennia i umovyny formuvannia pidzemnykh vod Lopushnianskoho naftovoho rodovyshcha u pivdenno-skhidnii chastyni Peredkarpatskoho prohynu. Heolohiia i heokhimiia horiuchykh kopalyn, 3, 21–36. [in Ukrainian]
Hihiienichni vymohy do vody pytnoi, pryznachenoi dlia spozhyvannia liudynoiu (DSanPiN 2.2.4-171-10). (2010). Kyiv. [in Ukrainian]
Ivaniuta, M. M. (Ed.). (1998). Atlas rodovyshch nafty i hazu Ukrainy: Vol. 4. Zakhidnyi naftohazonosnyi rehion. Lviv: Tsentr Yevropy. [in Ukrainian]
Kolodii, V. V. (2010). Hidroheolohiia. Pidruchnyk. Lviv: Vydavnychyi tsentr LNU imeni Ivana Franka. [in Ukrainian]
Medvid, H., Cheban, O., Kost, M., Telehuz, O., Harasymchuk, V., Sakhniuk, I., Maikut, O., & Kalmuk, S. (2022). Ekoloho-heokhimichna kharakterystyka pryrodnykh vod v mezhakh vplyvu Dobrivlianskoho hazokondensatnoho rodovyshcha. Heolohiia i heokhimiia horiuchykh kopalyn, 1–2(187–188), 115–126. https://doi.org/10.15407/ggcm2022.01-02.115 [in Ukrainian]
Nimets, N. N., Brusentseva, T. V., & Nimets, O. D. (2019). Pidvyshchennia ekolohichnoi bezpeky vydobuvannia vuhlevodniv shliakhom vyvchennia sumisnosti suputno-plastovykh vod pry povernenni v nadra. Visnyk Natsionalnoho tekhnichnoho universytetu “KhPI”. Seriia: Innovatsiini doslidzhennia u naukovykh robotakh studentiv, 15, 42–50. https://doi.org/10.20998/2220-4784.2019.15.08 [in Ukrainian]
TOV “Burproekt”. (2018). Utochnenyi proekt doslidno-promyslovoi rozrobky Dobrivlianskoho rodovyshcha. Lviv. [in Ukrainian]
TOV “Stryinaftohaz”. (2020). Tekhnolohichnyi proekt povernennia suputno-plastovykh vod (SPV) u nadra Dobrivlianskoho rodovyshcha. Lviv. [in Ukrainian]
UkrNDIhaz. (2013). Metodyka vyznachennia pryvnesenykh komponentiv ta vymohy do yikh vmistu pry povernenni suputno-plastovykh vod u nadra (SOU 09.1-30019775-004:2013). Kyiv. [in Ukrainian]