How it works

Gas is usually stored in underground facilities such as depleted oil and gas fields, aquifers or salt caverns located close to the point of end usage. Base-load facilities are used to meet seasonal demand variations, and peak-load facilities are used in case of unforeseen demand spikes.

Large base-load storage facilities provide prolonged, steady supply of gas. They are commonly depleted gas reservoirs, and have long-term injection/withdrawal seasons and a turnover interval of about once per year.

Peak-load facilities provide quick response to sudden, short-term demand increases. They are smaller and can be replenished in a shorter time than base-load facilities, with turnover intervals of days or weeks.

Compression machinery requirements will be determined by operating conditions. High equipment flexibility is required, due to the highly variable suction/discharge pressures and gas flow rates encountered.

Features & Benefits

  • Compressor design excellence draws on GE's key industry milestones such as first high-pressure ammonia/urea units and most powerful offshore units

  • Wide range of designs and materials to cover high pressures, temperatures, hydrogen mixtures and hazardous gases

  • Open and closed impellers available with geometries and flow coefficients fully tested for specific application requirements

  • Both labyrinth and dray-gas seals available, designed to eliminate or minimize gas leakage

  • Many recent designs include active magnetic bearings for greater mechanical efficiencies

  • Crankshaft and impellers available as single-piece steel forgings for optimized balance and efficiency

  • Cylinders and valves designed for the highest reliability and long parts life