Piston engine-driven compressor

mobile

Overview
Baker Hughes offers a skid-mounted, transportable recompression unit designed to limit or avoid gas release and flaring during pipeline depressurization. Combining proven reciprocating-compressor technology and gas-engine drive systems, the unit is engineered for rapid mobilization, modular deployment and straightforward operation to reduce methane emissions during maintenance or modification activities.

Emission reduction and impact
Deployments over recent years have enabled operators to eliminate routine venting by recompressing large gas volumes. Typical operations preserve more than 95% of pipeline gas, contributing to significant methane-emission reductions and maintaining gas value for the network.

Capture value and data transparency
Recovered gas is retained in the network for end-consumer use, supporting regulatory compliance and commercial recovery. Through the Baker Hughes FastLCA digital platform, operators obtain auditable data for each deployment to support carbon accounting, regulatory reporting and ESG commitments.

Product description / Reference
Packaged skid-mounted gas compressor unit for transportable recompression and pipeline depressurization. Integrated engine, compressor and auxiliaries, designed for fast rig-up/rig-down. Typical configuration includes:

• Packaged skid-mounted compressor unit
• Gas-engine drive (typical rating ~450 kW; reference listing includes a Natural Gas Engine 448 kWb)
• Vertical oil-free reciprocating compressor — 4BVTN/3-4 type, four-crank configuration at ~910 rpm
• Gearbox and clutch integrated with the drive train
• Filters, heaters and required auxiliaries for operation

Trailer and mobility features

• Semi-trailer max length: 12,000 mm (typical split: 9,000 mm recompression system + 3,000 mm ancillaries)
• External max width: 2,550 mm
• Total height with trailer: 4,000 mm; height without trailer: 2,896 mm
• Overall fully loaded weight: up to 38,000 kg
• 3 fixed off-road axles with disc brakes; pneumatic suspension with raise/lower valve
• Double-speed mechanical support legs for stabilization
• 4 twin twist-lock anchoring systems for container securing
• Option to unload the skid to facilitate maintenance access

Applications and benefits

• Limits or avoids gas release and flaring during pipeline depressurization, maintenance or modification
• Reduces methane emissions and preserves pipeline gas for sale or use
• Modular, transportable design enables faster mobilization and streamlined operations
• Provides auditable digital data (FastLCA) to support regulatory reporting and ESG objectives

Technical characteristics / specifications

• Compressor type: vertical oil-free reciprocating compressor (4BVTN/3-4)
• Compressor speed: ~910 RPM (four-crank configuration)
• Driver: natural gas engine, typical nominal power ~450 kW (reference 448 kWb)
• Drive train: gearbox and clutch integrated
• Trailer: semi-trailer max length 12,000 mm; max width 2,550 mm; total height with trailer 4,000 mm
• Overall loaded weight: up to 38,000 kg
• Suspension / braking: 3 fixed off-road axles with disc brakes; pneumatic suspension
• Stabilization: double-speed mechanical support legs; 4 twin twist-lock anchoring points