Bifuel Fracturing Pumps

Reducing emissions and improving performance

Bifuel fracturing pumps run on a combination of diesel and liquefied natural gas (LNG), compressed natural gas (CNG) or natural gas to reliably deliver fluid and proppant into a well for hydraulic fracturing or acid stimulation.

These pumps deliver 2,000 HHP at pressures up to 15,000 psi (103.4 MPa), providing the same performance as our conventional diesel-powered pump. Using natural gas, the proven bifuel pumps reduce diesel consumption and nearly double run rates over conventional diesel-powered pump, reducing environmental impact and increasing wellsite efficiency. 

Technical Data

Typical Pump Specifications


2,250 to 2,500 BHP 


Allison 9800 or Caterpillar CX-48 


Triplex: 4- to 53/4-in   /  (101.6- to 146.1-mm) fluid ends  /  Quintaplex: 41/2- to 51/2-in.  /  (101.6- to 146.1-mm) fluid ends  

Instruments and Controls

Universal Engine Controller III 


2,000 to 2,250 HHP  


Up to 15,000 psi (103.4 MPa) depending on fluid end size


Up to 22 bbl/min (4.0 m3/min)  

Maximum Substitution Rate

70% gas/30% diesel 

Fuel Capability

100% diesel or natural gas and diesel mixture 

Natural Gas Sources

LNG, CNG, or line gas 

Natural gas quality requirements (tolerance)

Minimum/Maximum LHV


Sulfur (H2S)

<20 ppm

Wobbe Index


Methane (CH4)

>92% of the total NG mixture

Nonmethane Hydrocarbons (NMHC)

<8% of the total NG mixture

Gas Temperature**

50–131ºF (10–55°C)

Emissions (g/hp-hr)


Tier 2 compliant (undergoing further testing)

Nitrogen Oxides (NOX) / Carbon Monoxide (CO)

Approximately zero with diesel oxidation catalyst (DOC)