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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The MWF-18.7/(0.3~0.5)-45 Associated Gas Compressor, a specialized reciprocating piston compressor, is developed for efficient compression and transportation of low-pressure associated gas in oilfield development, natural gas gathering systems, and energy recovery projects. Tailored to handle a specific medium composition—CH₄ 66.23%, C₂-C₁₀ hydrocarbons (including ethane 13.05%, propane 9.78%, etc.), and CO₂ 1.01%—this compressor ensures stable and safe operation in complex industrial scenarios, meeting the strict requirements of oil and gas field production.
With a rated processing capacity of 1370Nm³/h @ 0.04MPa.G (adjustable range: 1250~1450Nm³/h), it operates within an inlet pressure range of 0.03~0.05MPa.G (design point at 0.04MPa) and achieves an outlet pressure of 4.5MPa.G, driven by a 280kW high-efficiency main motor (model: YBBP-355L3-6). Its modular skid-mounted design, with overall dimensions of approximately 9000 × 3100 × 5045mm (height includes detachable cooler wind-collecting hood) and a weight of 22T, enables convenient transportation and on-site installation, adaptable to both plain and high-altitude oilfield environments.
This compressor plays a key role in optimizing associated gas utilization, reducing energy waste, and ensuring a leakage rate ≤ 3‰. It effectively supports the efficient operation of oil and gas gathering pipelines, associated gas recovery systems, and medium-pressure gas transmission networks, contributing to improved energy efficiency and operational safety.
The MWF-18.7/(0.3~0.5)-45 Compressor features a four-row symmetrical balanced M-type design, which significantly reduces operational vibration (complying with GB/T7777-2021 standards) and noise (≤85 dB at 1 meter from the unit). Equipped with wear-resistant components—such as piston rings, guide rings, and packing with a service life of no less than 6000 hours—it minimizes the frequency of part replacements, lowering maintenance workload and long-term operational costs. The integrated automatic control system (with Siemens S7-1200 PLC and 7-inch touchscreen) enables unmanned operation, remote monitoring of operating parameters, and automatic alarm/protection, reducing the need for manual intervention.
Adopting a closed water-cooling system for the main unit and forced air-cooling for the medium, the compressor ensures stable temperature control (the exhaust temperature of each stage ≤125℃, terminal gas supply temperature = ambient temperature +15℃). The crankcase, made of HT250 gray cast iron, has a built-in 100L lubricating oil sump, with dedicated interfaces for oil level monitoring and temperature detection. The cylinder and packing adopt oil-free lubrication technology, which avoids medium contamination and ensures gas purity. Key components such as the crankshaft (made of 42CrMo with surface carburization treatment) and piston rod (made of 42CrMo with nitriding treatment, HRC≥60) are manufactured using high-strength materials, which enhances the overall structural durability.
Designed for versatility, the compressor supports fixed installation with a foundation, integrating main equipment, coolers, separators, and control systems into a single skid for easy on-site deployment—ideal for remote oilfield locations. Customers can select lubricating oil grades (L-DAB150 for ambient temperature >5℃, L-DAB100 for <5℃) based on local climate conditions. Additionally, the system includes electric tracing for oil and sewage pipelines (40W/m·10℃ flame-retardant heating cables) to adapt to low-temperature environments (-25℃~55℃). Connection interfaces adopt HG/T20592-2009 steel flanges, ensuring compatibility with on-site pipeline systems.
Application Area
Highlight Advantages
 |  |  |  |
| Has high efficiency, strong reliability, and high degree of automation; | Less vulnerable parts, low vibration, low noise, and easy operation and maintenance | The main and auxiliary equipment of the compressor are all installed on the sled, running smoothly and reliably. The overall sled installation is convenient for the transportation and installation of the compressor | 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
 |  |
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:
 |  |  |
| Metal cabin | Wooden box | Soundproof cabin |
Project Case
 |  |  |
| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Alibek oilfield in Southern Kazakhstan | Procurement of Molecular Sieve Dehydration, Ethylene Glycol Regeneration and Injection Device, and Fuel Gas Skid in Akimom Gas Field |
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 | |
| 16 | VW-5.6/（0～6）-6 | Isobutylene | 1650 | 0.6 | 45 | Water-cooled | 2900×1900×1600 | 3500 | |
| 17 | VW-3.8/3.5 | Mixed gases | 200 | 0.35 | 18.5 | Water-cooled | 2200×1945×1600 | 2000 | |
| 18 | ZW-1.7/3.5 | Vinyl chloride | 100 | 0.35 | 15 | Water-cooled | 2700×1600×2068 | 2000 | |
| 19 | VW-0.85/(0～14)-40 | Refrigerant | 300 | 4.0 | 55 | Water-cooled | 4500×2300×1780 | 5500 | |
| 20 | DW-3.78/(8～13)-(16～24) | Ammonia | 2700 | 1.6～2.4 | 75 | Water-cooled | 3200×2000×1700 | 3500 | |
| 21 | DW-5/7 | Chloromethane | 355 | 0.7 | 37 | Water-cooled | 3500×2600×1700 | 4000 | |
| 22 | DW-9.2/3 | on-condensable gas | 653 | 0.3 | 45 | Water-cooled | 3500×3200×1680 | 6800 | |
| 23 | DW- 16/(2.8～3.2)-7.6 | Carbon rich gas | 3000～3400 | 0.76 | 132 | Water-cooled | 4500×3400×2750 | 12000 | |
| 24 | DWD-2.9/20-50 | Wellhead gas | 3334 | 2.0～5.0 | 185 | Water-cooled | 6000×3500×3000 | 14000 | |
| 25 | DW-4/0.5-4 | -pentadiene, nitroge | 300 | 0.4 | 30 | Water-cooled | 3000×2800×1700 | 3500 | |
| 26 | DW-8.7/0.02-15 | Tail gas | 500 | 1.5 | 90 | Water-cooled | 4500×3000×1800 | 10000 | |
| 27 | DW-8.8/0.2-6 | Desorption gas | 450 | 0.6 | 75 | Water-cooled | 4000×3000×2150 | 8000 | |
| 28 | DW-1.3/0.2-18 | Metafluoroethylene | 80 | 1.8 | 18.5 | Water-cooled | 3500×2500×1570 | 3500 | |
| 29 | DW-12.5/(0. 1～0. 15)-18 | uoromonochloroeth | 887 | 1.8 | 132 | Water-cooled | 5500×3200×2500 | 14000 | |
| 30 | DW-2.9/5 | Gas | 206 | 0.5 | 22 | Water-cooled | 3200×2800×1800 | 3000 | |
Project Case
 |  |  |
| 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. |
It is specifically engineered for associated gas with a clear composition—including CH₄ 66.23%, C₂-C₁₀ hydrocarbons (such as ethane 13.05%, propane 9.78%), CO₂ 1.01%, and trace components like helium 0.044% and nitrogen 5.31%—making it suitable for compressing and transporting low-pressure associated gas in oilfield development, natural gas gathering systems, 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 equipment provided by the supplier must meet, but not be limited to, relevant industry standards and specifications. Except for those with specified versions, all standards shall be implemented in accordance with the latest edition, ensuring the compressor’s safety, reliability, and compliance with industrial operation requirements during long-term use.
The MWF-18.7/(0.3~0.5)-45 Associated Gas Compressor, a specialized reciprocating piston compressor, is developed for efficient compression and transportation of low-pressure associated gas in oilfield development, natural gas gathering systems, and energy recovery projects. Tailored to handle a specific medium composition—CH₄ 66.23%, C₂-C₁₀ hydrocarbons (including ethane 13.05%, propane 9.78%, etc.), and CO₂ 1.01%—this compressor ensures stable and safe operation in complex industrial scenarios, meeting the strict requirements of oil and gas field production.
With a rated processing capacity of 1370Nm³/h @ 0.04MPa.G (adjustable range: 1250~1450Nm³/h), it operates within an inlet pressure range of 0.03~0.05MPa.G (design point at 0.04MPa) and achieves an outlet pressure of 4.5MPa.G, driven by a 280kW high-efficiency main motor (model: YBBP-355L3-6). Its modular skid-mounted design, with overall dimensions of approximately 9000 × 3100 × 5045mm (height includes detachable cooler wind-collecting hood) and a weight of 22T, enables convenient transportation and on-site installation, adaptable to both plain and high-altitude oilfield environments.
This compressor plays a key role in optimizing associated gas utilization, reducing energy waste, and ensuring a leakage rate ≤ 3‰. It effectively supports the efficient operation of oil and gas gathering pipelines, associated gas recovery systems, and medium-pressure gas transmission networks, contributing to improved energy efficiency and operational safety.
The MWF-18.7/(0.3~0.5)-45 Compressor features a four-row symmetrical balanced M-type design, which significantly reduces operational vibration (complying with GB/T7777-2021 standards) and noise (≤85 dB at 1 meter from the unit). Equipped with wear-resistant components—such as piston rings, guide rings, and packing with a service life of no less than 6000 hours—it minimizes the frequency of part replacements, lowering maintenance workload and long-term operational costs. The integrated automatic control system (with Siemens S7-1200 PLC and 7-inch touchscreen) enables unmanned operation, remote monitoring of operating parameters, and automatic alarm/protection, reducing the need for manual intervention.
Adopting a closed water-cooling system for the main unit and forced air-cooling for the medium, the compressor ensures stable temperature control (the exhaust temperature of each stage ≤125℃, terminal gas supply temperature = ambient temperature +15℃). The crankcase, made of HT250 gray cast iron, has a built-in 100L lubricating oil sump, with dedicated interfaces for oil level monitoring and temperature detection. The cylinder and packing adopt oil-free lubrication technology, which avoids medium contamination and ensures gas purity. Key components such as the crankshaft (made of 42CrMo with surface carburization treatment) and piston rod (made of 42CrMo with nitriding treatment, HRC≥60) are manufactured using high-strength materials, which enhances the overall structural durability.
Designed for versatility, the compressor supports fixed installation with a foundation, integrating main equipment, coolers, separators, and control systems into a single skid for easy on-site deployment—ideal for remote oilfield locations. Customers can select lubricating oil grades (L-DAB150 for ambient temperature >5℃, L-DAB100 for <5℃) based on local climate conditions. Additionally, the system includes electric tracing for oil and sewage pipelines (40W/m·10℃ flame-retardant heating cables) to adapt to low-temperature environments (-25℃~55℃). Connection interfaces adopt HG/T20592-2009 steel flanges, ensuring compatibility with on-site pipeline systems.
Application Area
Highlight Advantages
| | | |
| Has high efficiency, strong reliability, and high degree of automation; | Less vulnerable parts, low vibration, low noise, and easy operation and maintenance | The main and auxiliary equipment of the compressor are all installed on the sled, running smoothly and reliably. The overall sled installation is convenient for the transportation and installation of the compressor | 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
| |
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:
| | |
| Metal cabin | Wooden box | Soundproof cabin |
Project Case
| | |
| Lanzhou petrochemical company 240000 tonsyear ethylene production capacity restoration - adding butadiene and 1-butene unloading facilities project | Alibek oilfield in Southern Kazakhstan | Procurement of Molecular Sieve Dehydration, Ethylene Glycol Regeneration and Injection Device, and Fuel Gas Skid in Akimom Gas Field |
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 | |
| 16 | VW-5.6/（0～6）-6 | Isobutylene | 1650 | 0.6 | 45 | Water-cooled | 2900×1900×1600 | 3500 | |
| 17 | VW-3.8/3.5 | Mixed gases | 200 | 0.35 | 18.5 | Water-cooled | 2200×1945×1600 | 2000 | |
| 18 | ZW-1.7/3.5 | Vinyl chloride | 100 | 0.35 | 15 | Water-cooled | 2700×1600×2068 | 2000 | |
| 19 | VW-0.85/(0～14)-40 | Refrigerant | 300 | 4.0 | 55 | Water-cooled | 4500×2300×1780 | 5500 | |
| 20 | DW-3.78/(8～13)-(16～24) | Ammonia | 2700 | 1.6～2.4 | 75 | Water-cooled | 3200×2000×1700 | 3500 | |
| 21 | DW-5/7 | Chloromethane | 355 | 0.7 | 37 | Water-cooled | 3500×2600×1700 | 4000 | |
| 22 | DW-9.2/3 | on-condensable gas | 653 | 0.3 | 45 | Water-cooled | 3500×3200×1680 | 6800 | |
| 23 | DW- 16/(2.8～3.2)-7.6 | Carbon rich gas | 3000～3400 | 0.76 | 132 | Water-cooled | 4500×3400×2750 | 12000 | |
| 24 | DWD-2.9/20-50 | Wellhead gas | 3334 | 2.0～5.0 | 185 | Water-cooled | 6000×3500×3000 | 14000 | |
| 25 | DW-4/0.5-4 | -pentadiene, nitroge | 300 | 0.4 | 30 | Water-cooled | 3000×2800×1700 | 3500 | |
| 26 | DW-8.7/0.02-15 | Tail gas | 500 | 1.5 | 90 | Water-cooled | 4500×3000×1800 | 10000 | |
| 27 | DW-8.8/0.2-6 | Desorption gas | 450 | 0.6 | 75 | Water-cooled | 4000×3000×2150 | 8000 | |
| 28 | DW-1.3/0.2-18 | Metafluoroethylene | 80 | 1.8 | 18.5 | Water-cooled | 3500×2500×1570 | 3500 | |
| 29 | DW-12.5/(0. 1～0. 15)-18 | uoromonochloroeth | 887 | 1.8 | 132 | Water-cooled | 5500×3200×2500 | 14000 | |
| 30 | DW-2.9/5 | Gas | 206 | 0.5 | 22 | Water-cooled | 3200×2800×1800 | 3000 | |
Project Case
| | |
| 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. |
It is specifically engineered for associated gas with a clear composition—including CH₄ 66.23%, C₂-C₁₀ hydrocarbons (such as ethane 13.05%, propane 9.78%), CO₂ 1.01%, and trace components like helium 0.044% and nitrogen 5.31%—making it suitable for compressing and transporting low-pressure associated gas in oilfield development, natural gas gathering systems, 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 equipment provided by the supplier must meet, but not be limited to, relevant industry standards and specifications. Except for those with specified versions, all standards shall be implemented in accordance with the latest edition, ensuring the compressor’s safety, reliability, and compliance with industrial operation requirements during long-term use.
