In the face of growing demands for efficiency, safety, and environmental performance of chemical reagents in the oil and gas industry, highly specialized products capable of solving specific technological challenges are becoming increasingly important. One such promising solution is the PR-2 flushing solvent, developed and manufactured by UralKhimSintez. This product has demonstrated high effectiveness over the past 10 years and continues to attract strong interest from production operators, service companies, and engineering departments.

Purpose and Application Area
The PR-2 flushing solvent is designed for cleaning process equipment, pipelines, valves, and downhole tools from residual oil, paraffins, resins, asphaltenes, and other organic contaminants. Its key advantage lies in its high specialization: PR-2 has been specifically developed to meet the demands of the oil and gas industry, where not only cleaning efficiency is critical, but also performance stability under extreme temperatures, operational safety, and compatibility with equipment materials.

Key Features and Advantages

• High Solvency Power

PR-2 effectively dissolves a wide range of organic deposits, including hard-to-remove components such as resinous-asphaltene complexes. This reduces the number of required flushing cycles and enhances the overall efficiency of well and equipment maintenance operations.

• Freeze Resistance and Low-Temperature Stability

One of the key features of PR-2 is its ability to maintain its physical and chemical properties at critically low temperatures (down to –96 °C). This makes it indispensable in regions with harsh climates, where many traditional solvents lose fluidity or crystallize. Moreover, PR-2 can lower the freezing point of other reagents, enabling its use as a component in formulations of process fluids designed for winter conditions.

• Anti-Corrosion Protection

Unlike aggressive chlorinated or acidic solvents, PR-2 does not have a corrosive effect on ferrous and non-ferrous metals. This significantly extends the service life of pipelines, tanks, and pumping equipment, reducing maintenance and replacement costs.

• Enhanced Penetration Capability

Thanks to its optimized formulation, PR-2 exhibits high wettability and penetrating power. It effectively penetrates microcracks, pores, and hard-to-reach areas, ensuring deep and uniform cleaning. This is particularly important when servicing downhole equipment and heat exchangers.

• Fast Evaporation and No Residue

After flushing, PR-2 evaporates quickly, leaving no oily films or toxic residues. This reduces equipment drying time and minimizes the risk of secondary contamination, which is especially important during commissioning and start-up operations.

• Flexible Composition and Customized Solutions

UralKhimSintez offers the option to adapt the PR-2 formulation to specific operating conditions. The concentrations of active components can be adjusted depending on the type of contaminants, equipment materials, or temperature requirements. This makes the product a versatile tool suitable for a wide range of application scenarios.

• Safety and Usage Control

To prevent misuse, PR-2 contains denaturing agents and special dyes, which eliminate the possibility of its use for household or food-related purposes. At the same time, upon customer request, a colorless version of the product can be supplied—ideal for applications where the dye might interfere with diagnostics or visual inspection.

Proven Effectiveness
The effectiveness of PR-2 has been confirmed through both laboratory testing and real-world industrial applications. Successful field trials at well clusters, including direct injection into wells, have demonstrated a high degree of cleaning efficiency and no adverse effects on equipment. Operators report streamlined technological processes, reduced downtime, and improved system reliability.