Combined with the petroleum exploitation scenarios and the differences in working conditions of the three major export markets in the Middle East, Russia and Tanzania, three major mainstream models are mainly offered, covering all types of compressed air needs for petroleum exploitation, and specifications can be customized on demand: Oil-Injected Twin-Screw Air Compressor (Main Export Model): With the highest export volume ratio, it adopts oil-injection cooling, lubrication and sealing technology, with low operating noise, good heat dissipation effect and stable pressure, suitable for conventional operations such as petroleum drilling rig pneumatic tools and instrument air supply, and is a universal main model in the three major markets. Skid-Mounted Twin-Screw Air Compressor: Integrated skid-mounted design, integrating compressor, cooling system and control system, wind-sand and rain-snow proof, can be quickly hoisted and moved, adapting to field mobile operations such as Middle East deserts and Russian permafrost and drilling needs in remote blocks. Two-Stage Compression Twin-Screw Air Compressor: Adopting two-stage screw series compression structure, with reasonable compression ratio, less leakage, outstanding energy-saving effect and larger air displacement, suitable for high-pressure and large-flow operation scenarios such as wellhead pressurization and associated gas recovery in large oil and gas fields in the Middle East and Russia.