PSI - Issue 59

Liubov Poberezhna et al. / Procedia Structural Integrity 59 (2024) 739–744 Liubov Poberezhna et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 2. (a) Satellite image and (b) map of the areas of direct and indirect influence of Karaykoziv deposit in Slobozhanskyi National Nature Park.

The area of high environmental risk (Fig. 2) in the Slobozhanskyi National Nature Park is 5.68 km 2 , which is 10.8% of the park's total area. The area of the moderate risk zone of 1 km is 11.88 km 2 , which is 22.65% of the total area of the park. The area of moderate to low-risk zone is 34.38 km 2 , which is 65.56% of the total area of the park. The area of the low-risk zone is 51.23 km 2 , which is 97.69% of the total area of the park. The article presents the results of the assessment of the impact of the extraction of energy hydrocarbons on nature conservation areas as of the end of 2021. 4. Conclusions The Karaykoziv oil and gas condensate field is located near the Slobozhanskyi National Nature Park, petroleum production here is a source of the environmental risks. The chemical composition of formation water samples from wells of the Karaykoziv field was analyzed; it was found that the main corrosive components are chlorides with sulfate impurities and carbon dioxide dissolved in water, mainly in the form of hydrocarbonate ions. Corrosion tests have shown that the casing corrosion rate is up to 3.5 mm/year, which indicates a high risk of penetrating damage, leakage of drilling mud and oil-containing fluids and pollution of the water horizons. The method of environmental mapping is proposed to determine the zones of influence of oil and gas production processes and potential environmental risks. For the Karaykoziv field, the areas of impact petroleum production on protected areas were identified and ranked by the level of potential techno-ecological risk. In the future, it is necessary to conduct environmental mapping measures for other nature conservation areas located near natural oil and gas to minimize environmental risks. References Andreikiv, О. E., Nykyforchyn, H. М., Shtoiko, І. P., Lysyk, A. R., 2017. Evaluation of the residual life of a pipe of oil pi peline with an external surface stress-corrosion crack for a laminar flow of oil with repeated hydraulic shocks. Materials Science 53, 216-225. Anifowose, B., Lawler, D. M., van der Horst, D., Chapman, L., 2016. A systematic quality assessment of Environmental Impact Statements in the oil and gas industry. Science of the Total Environment 572, 570-585. Atoufi, D. H., Lampert, D. J., 2020. Impacts of oil and gas production on contaminant levels in sediments. Current pollution reports 6, 43-53. Brittingham, M. C., Maloney, K. O., Farag, A. M., Harper, D. D., Bowen, Z. H., 2014. Ecological risks of shale oil and gas development to wildlife, aquatic resources and their habitats. Environmental science & technology 48(19), 11034-11047. Chudyk, I., Poberezhny, L., Hrysanchuk, A., Poberezhna, L., 2019. Corrosion of drill pipes in high mineralized produced waters. Procedia Structural Integrity 16, 260-264.