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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Overview
The MWF-18.7/(0.3~0.5)-45 Associated Gas Compressor is a professional reciprocating piston unit built for low-pressure associated gas compression and delivery. It serves oilfield development, natural gas gathering and energy recovery projects, and is precisely customized for specific gas media: 66.23% methane (CH₄), 1.01% CO₂, and C₂-C₁0 hydrocarbons including 13.05% ethane and 9.78% propane. Suited for complex and harsh field conditions, this compressor delivers stable, safe long-term operation and meets strict oil and gas field production standards.
Easy to transport and install, suitable for plain and high-altitude oilfields.
This compressor optimizes associated gas utilization, cuts energy waste, and ensures leakage rate ≤ 3‰.
It supports stable oil-gas gathering and gas transmission, boosting efficiency and safety.
The MWF-18.7/(0.3~0.5)-45 Compressor adopts a 4-row symmetric balanced M-type structure, ensuring low vibration (GB/T7777-2021) and noise ≤85 dB at 1m.
Wear-resistant parts last ≥6000 hours, cutting maintenance and costs.
Siemens S7-1200 PLC with 7" HMI enables unmanned running, remote monitoring and auto protection.
Advanced Structural Design
This compressor uses a closed water-cooled system and forced air cooling to deliver reliable temperature control, with each stage exhaust temperature ≤125℃ and outlet gas temperature at ambient +15℃.
It features a HT250 gray cast iron crankcase with a 100L lubricating oil sump, supporting oil level and temperature monitoring.
Oil-free lubrication on cylinders and packing eliminates medium contamination and ensures gas purity.
High-strength 42CrMo crankshaft and piston rod with hardened surfaces deliver exceptional durability and long service life.
Application Area
Highlight Advantages
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| Has high efficiency, strong reliability, and high degree of automation; | Less vulnerable parts, low vibration, low noise, and easy operation and maintenance | The compressor is installed on the sled, running smoothly and reliably. The overall sled installation is convenient for the transportation and installation | The entire machine components are carefully designed |
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 |
Whole Machine Description
All main and auxiliary compressor components are fully pre-assembled on a standard skid base, ensuring steady, trouble-free operation.
The integrated skid-mounted structure simplifies transportation and on-site installation, reducing project workload and commissioning time significantly.
Featuring flexible customizable configurations, this reciprocating piston compressor adapts to varied field conditions, whether plain or high-altitude oilfield environments, delivering stable and fit-for-purpose gas compression performance for different engineering projects.
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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 | |
| 11 | DW-14/(0～0.2)-25 | Raw material gas | 800 | 2.5 | 160 | Water-cooled | 4800×3200×1915 | 10000 | |
| 12 | VW-8/18 | Vinylidene fluoride | 418 | 1.8 | 75 | Water-cooled | 3700×2000×1700 | 4500 | |
| 13 | VWD-3.2/(0～0.2)-40 | Biogas | 230 | 4.0 | 45 | Water-cooled | 6000×2500×2650 | 8000 | |
| 14 | VW-9/6 | Ethyl chloride | 470 | 0.6 | 55 | Water-cooled | 2800×1720×1700 | 3500 | |
| 15 | DW-2.4/(18～25)-50 | Raw material gas | 2900 | 5.0 | 160 | Water-cooled | 4300×3000×1540 | 4500 | |
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
