Liquid CO2 Fracturing Equipment

Product Overview

The Liquid CO₂ Fracturing Equipment is a high-pressure gas blasting system that achieves physical fracturing through the rapid expansion of liquid CO₂. During endothermic vaporization, liquid CO₂ expands sharply, generating high pressure to break and fracture coal and rock formations. The system is designed for coal mines and non-coal mining operations, including permeability enhancement and gas control. It comes with supporting filling, detection, and initiation equipment to ensure safe and efficient operation under diverse working conditions.

Working Principle

The equipment leverages the rapid volume expansion of liquid CO₂ as it absorbs heat and vaporizes, producing high pressure that is transmitted to coal seams or rock formations to induce fracturing. The expansion process is non-flammable and free of harmful gases. The pressure can be precisely controlled, achieving a fracturing radius of over 2 meters, reducing drilling requirements and improving operational efficiency.

Key Features

• Safe and Environmentally Friendly: No shockwaves, open flames, or harmful gases; CO₂ discharge provides explosion suppression and fire retardant effects.
• Low Vibration: Fracturing produces minimal vibrations, lowering the risk of gas outbursts.
• Easy Operation: Fracturing radius exceeds 2 meters, reducing the number of drill holes; equipment lifespan up to 10 years.
• Controlled Blasting: Adjustable energy levels to suit different geological and operational requirements.
• Enhanced Clean Coal Production: Low dust, high lump coal rate, and short coal throw distance support efficient large-block coal extraction.
• Reusable: Fracturing devices are reusable, providing economic and durable performance.

Applications

• Coal Mining: Gas control, rockburst mitigation, seam permeability enhancement, top coal weakening, and coal extraction blasting.
• Non-Coal Mining: Stone quarrying and rock fracturing operations.
• Tunnels and Coal Silo Clearance: Bottom seam management and coal silo blockage removal.
• Environmental and Safe Mining: A clean and safer alternative to traditional blasting, suitable for high-safety and environmentally sensitive coal mines, including gas-prone mines.