APPLICATION OF UNDERGROUND NON-METALLIC FIRE-FIGHTING WATER STORAGE TANKS AT OIL AND GAS FACILITIES

The article discusses the use of underground non-metallic tanks for fire water reserves at oil and gas facilities. It analyzes the technical features of reinforced concrete and polymer structures, highlighting their advantages over metal counterparts: corrosion resistance, durability, and cost-effectiveness. Attention is given to regulatory requirements, including soil pressure calculations and tank placement rules. The design of polymer tanks is examined in detail, with manufacturer-provided size ranges and usage examples that emphasize adaptation to climatic conditions and space constraints. Recommendations on material selection aim to optimize fire protection systems at high-risk sites. For strength calculations of polymer tanks, formulas used for non-pressure pipelines were applied. The suitability of pipes for underground tank fabrication is concluded based on verifying pipe strength conditions. Tanks made from such pipes, reinforced further by adding end walls that increase overall strength and rigidity, reliably meet underground placement requirements. To assess the tank’s ability to withstand necessary loads, the ring stiffness formula was used – this represents the maximum external load the material or structure can bear without exceeding allowable deformation limits. Oil and gas facilities are classified as high fire hazard sites due to the presence of flammable substances. Fire water reserve tanks are a key component of water supply systems, ensuring prompt fire suppression. Traditionally, steel tanks are used, but their metal construction has limitations: corrosion, need for insulation, and installation complexity. Non-metallic underground tanks offer an alternative solution combining durability, cost efficiency, and compliance with regulations. Moreover, using recycled materials for tank production at oil and gas sites helps address secondary material reuse challenges. Their use is especially relevant in areas with limited space and aggressive environmental conditions. Material choice depends on water volume, climate, and installation requirements.