Gas composition (mol%): Associated gas (CH₄ 66.23%, C₂-C₁₀ hydrocarbons 26.7548%, CO₂ 1.01%)
Flow rate: 1370Nm³/h @ 0.04MPa.G
Inlet pressure: 0.03~0.05MPa.G (design point 0.04MPa)
Inlet temperature: Normal temperature
Exhaust pressure: 4.5MPa.G
Main motor power: 280kW
Overall dimensions of the machine: approximately 9000 × 3100 × 5045mm
Whole machine weight: approximately 22T
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Recovering Low-Pressure Associated Gas from Oilfield Production
The MWF-18.7/(0.3~0.5)-45 Associated Gas Compressor is designed for the recovery and pressurization of low-pressure associated gas generated during oil production.
Unlike conventional natural gas compression applications, associated gas often comes from oilfield production processes with unstable pressure and complex gas compositions. This compressor is developed to collect, compress, and transfer associated gas for further utilization.
The unit processes associated gas with a flow rate of 1370Nm³/h, operating from a low inlet pressure of 0.03~0.05MPa.G and increasing gas pressure up to 4.5MPa.G.
The compressor adopts reciprocating piston compression technology with an integrated skid-mounted structure, making it suitable for oilfield gas recovery projects and remote industrial environments.
During oil production, associated gas is often generated together with crude oil. Without proper recovery equipment, this gas may be difficult to utilize due to low pressure.
The MWF-18.7/(0.3~0.5)-45 provides a compression solution for:
The compressor collects low-pressure associated gas from production sites and increases pressure for transportation or further processing.
Suitable for gathering networks where associated gas from multiple production points needs pressure boosting.
Supports the conversion of associated gas into usable fuel resources instead of wasting valuable gas.
The skid-mounted package allows installation in oilfield locations with limited infrastructure.
Compression Design for Low-Pressure Gas Recovery
Associated gas recovery applications often involve low suction pressure and changing operating conditions.
The MWF-18.7/(0.3~0.5)-45 is designed with:
Reciprocating piston compression technology
Balanced mechanical structure
Oil-free lubrication design
Integrated skid package
This configuration allows stable compression performance when handling associated gas from oil production processes.
Skid-Mounted Unit for Field Deployment
The compressor is supplied as a complete skid-mounted package with the main compressor and supporting components assembled together.
The integrated design helps:
Reduce installation work at the project site
Simplify transportation to remote locations
Improve commissioning efficiency
Adapt to different oilfield operating conditions
The package structure is especially suitable for field applications where installation space and construction conditions are limited.
Patent Certificates
 | A piston rod thread protective sleeve ZL 2017 2 1907021.7 | | A piston ring support device ZL 2018 2 0294776.2 | |
| A range piston ZL 2017 2 190177.0 for symmetrical balanced compressors | | Integrated long short double compartment ZL 2018 2 0294762.0 |
Gas Composition Adaptability for Associated Gas Applications
Associated gas usually contains methane together with heavier hydrocarbons and other components.
The MWF-18.7/(0.3~0.5)-45 is designed for associated gas compression applications with complex gas compositions, including:
Methane (CH₄)
Ethane and heavier hydrocarbons
Carbon dioxide (CO₂)
Other trace components
The compressor provides stable compression performance for oilfield associated gas recovery systems.
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The compressor in this picture is a non-standard product. The product provides independent solutions tailored to customers' specific usage requirements (flow rate/purity/pressure, usage environment, main purpose, and customer specific requirements), from design to product customization.
Structural form: D-type/M-type/S-type/W-type/V-type/Z-type
Cooling method: water cooling/air cooling/mixed cooling
Installation form: fixed/mobile/pry mounted/cabin type
Drive mode: motor drive/diesel engine start
Transportation: sea/air/land
Packaging:
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| Metal cabin | Wooden box | Soundproof cabin |
Technical Parameter
| No. | Model | Medium | Flow rate (Nm3/h) | Exhaust pressure MPa（G) | Motor power (kW) | Cooling method | Overall dimensions (mm) | Weights (kg) | |
| 1 | DWF-12.4/（9～12）-14 | Carbon dioxide | 6400 | 1.4 | 185 | Air-cooled | 6000×2700×2200 | 10000 | |
| 2 | VWF-2.86/5-16 | Nitrogen | 895 | 1.6 | 55 | Air-cooled | 3200×2200×1750 | 3500 | |
| 3 | ZWF-0.96/5 | Hydrogen chloride | 55 | 0.5 | 11 | Air-cooled | 2000×1500×2000 | 1000 | |
| 4 | DFW-1. 13/0.3-34 | Flash Vapour | 75 | 0.03～3.4 | 18.5 | Air-cooled | 4500×3200×2150 | 5600 | |
| 5 | DFW-6.5/(0～0.5)-10 | Associated gas | 50～100 | 1 | 75 | Air-cooled | 3500×2800×1850 | 4500 | |
| 6 | DFW-4.2/(0.2～1.5)-12 | BOG | 260～540 | 1.2 | 55 | Air-cooled | 3500×3000×2000 | 5500 | |
| 7 | DW-2.45/(6～7)-100 | Carbon Monoxide | 900 | 10 | 160 | Mixed cooling | 6500×3200×1700 | 10000 | |
| 8 | DW-19.8/0.5-7.25 | Methylene chloride | 3.5 | 0.725 | 160 | Mixed cooling | 5200×3000×2350 | 8000 | |
| 9 | DW-8.6/(0～0.2)-8 | Chloromethane | 436 | 0.8 | 75 | Mixed cooling | 3200×2400×1600 | 4500 | |
| 10 | DW-2.4/2.5-11 H | elium Recovery Ga | 450 | 1.1 | 37 | Mixed cooling | 3000×2500×1800 | 3000 | |
Project Case
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| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Beijing Hongke Qingneng Technology Co., Ltd. associated gas compressor for Shanxi Yan'an 60000 m3 project | Zaozhuang CNG compressor project of Chengdu Shenliang Technology Co., Ltd. |
This compressor is specially designed for associated gas compression, handling a defined gas composition: 66.23% CH₄, 13.05% ethane, 9.78% propane, 1.01% CO₂, 5.31% N₂ and 0.044% helium.
It is widely used for low-pressure associated gas compression and transmission in oilfield development, gas gathering and energy recovery projects.
The compressor has a rated processing capacity of 1370Nm³/h, operates within an inlet pressure range of 30~50Kpa.G (at normal temperature), and achieves an outlet pressure of 4.5MPa.G. These parameters ensure it can efficiently meet the demand for low-pressure associated gas compression and medium-pressure transmission in oil and gas field production scenarios.
Yes,The supplied unit shall fully comply with all applicable industry standards and specifications, including the latest editions where no specific version is stated.
This ensures long-term safe, reliable and regulatory-compliant operation of the compressor
