5 Applications of Rotary Screw Compressors in the Natural Gas Industry
Rotary screw compressors are heavily relied on in natural gas operations, from extraction to processing. Their design and performance make them indispensable for maintaining flow and pressure across the supply chain. This article examines the role of rotary screw compressors in natural gas operations, highlighting their importance in efficient compression.
1. Gas Gathering
In gas gathering systems, rotary screw compressors are used to boost the pressure of raw natural gas as it exits the wellhead. This step ensures the gas can be transported efficiently to processing facilities through pipelines.
At this stage, compressors must handle variable gas compositions, often with high levels of moisture or impurities. Rotary screw designs excel in these environments due to their ability to operate under fluctuating loads without compromising performance.
Additionally, their compact configuration makes them suitable for installation in remote or space-constrained gathering sites.
2. Gas Processing
Rotary screw compressors help maintain operational pressure in natural gas processing plants. During separation, dehydration, and gas sweetening, these compressors regulate the flow of gas through various stages of treatment. Their inherent precision allows for consistent performance, which is critical to maximizing throughput and maintaining the efficiency of downstream processes.
Materials used in their construction can be selected to resist the corrosive effects of sour gas or other byproducts encountered in processing, ensuring long service life in demanding conditions.
3. Pipeline Compression
For natural gas transportation, rotary screw compressors are deployed at pipeline stations to sustain the pressure necessary for moving gas over long distances. They deliver uniform flow rates under varying conditions which is essential for minimizing energy loss during transport.
The modular design of these compressors also allows them to be scaled or adjusted based on the pipeline’s requirements, while advanced cooling systems prevent overheating during continuous operation.
Pipeline compression stations often operate in remote areas, and the rugged build of rotary screw compressors ensures they can withstand harsh environmental factors while requiring minimal intervention.
4. Underground Storage
Rotary screw compressors play a dual role in underground natural gas storage, managing both injection and withdrawal cycles. During injection, the compressors elevate gas pressure for storage in depleted reservoirs or salt caverns. During peak demand, they reverse the process, extracting gas and delivering it back into the pipeline network at usable pressures.
These compressors are designed to operate across a wide range of pressures and temperatures, adapting to changes in storage conditions. Their ability to maintain consistent output during fluctuating operations makes them invaluable for balancing supply and demand.
5. Enhanced Oil Recovery (EOR)
In enhanced oil recovery operations, rotary screw compressors are used for gas lift techniques, where natural gas is injected into reservoirs to improve oil flow. Compressor controls ensure optimal injection rates which are vital for maximizing recovery without overpressurizing the reservoir.
Given the high-pressure environment of EOR applications, rotary screw compressors are engineered for durability and consistent performance, even in extreme conditions.
Find Your Compression Solution Today
Rotary screw compressors are essential to the natural gas industry, enabling efficient gas movement and processing across every stage of the value chain. If you’re in need of new equipment, Contact 24-7 Compression to discuss solutions for your natural gas operations.