Compressor-free CNG. The well does the work.
ZeroHP CNG turns high-pressure wellhead gas into trailer-ready CNG without a compressor. Free liquids and solids removal, gas selection and molecular drying at wellhead pressure, straight into the tube trailer.
Overview
Many high-pressure wells deliver gas well above CNG fill pressure. ZeroHP CNG takes advantage of that geobaric energy: instead of burning horsepower to compress gas that is already at pressure, the system separates free liquids and solids, selects dry gas through a gas selector and molecular dryer, and fills the tube trailer directly from the well.
The result is CNG production with no compressor to buy, power or maintain, lower fill temperatures than compressed fills, and the ability to keep wellhead production rate constant while trailers cycle. The equipment is easily transportable between pads.
Key specifications
| Principle | Compressor-free CNG production from wellhead pressure |
|---|---|
| Well pressure | High-pressure wells, 3,600 to 10,000 psig |
| Capacity | Up to 15 MMSCFD per wellhead supported by equipment |
| Fill time | Fills the largest CNG trailer in less than one hour (15 MMSCFD unit) |
| Process | Super separator (free liquids and solids removal), gas selector, molecular dryer, CNG filling station |
| Fill temperature | Reduced compared with compressed fills |
| Production | Wellhead production rate can remain constant |
| Mobility | Easily transportable skids |
| Status | Patent pending |
ZeroHP CNG is engineered to each well. Contact engineering with wellhead pressure, gas analysis and target fills per day.
Why ZeroHP CNG
Zero horsepower
No compressor, no driver, no power supply, no compressor maintenance. The well's own pressure moves the gas.
Fast fills
A 15 MMSCFD unit fills the largest CNG tube trailer in under an hour.
Cooler fills
Reduced fill temperatures mean more gas in the trailer at the same pressure.
Constant production
The wellhead keeps producing at a steady rate while trailers are swapped.
Portable
Skid-based equipment that moves from pad to pad as wells decline.
Engineered and built in Texas
Designed, packaged and tested by the same team behind the NuPresto and PRS lines.
Typical applications
- Infield CNG generation at high-pressure wells
- Early production gas monetization ahead of pipeline connection
- Flare reduction where gathering capacity is constrained
- Trailer filling for virtual pipeline operators near high-pressure production
What's included
- Super separator for free liquids and solids removal
- Gas selector and molecular dryer skids
- CNG filling station with trailer connections and controls
- Engineering package, FAT documentation and operating procedures
Engineering and aftermarket support
ZeroHP is engineered to the well. Send us a gas analysis, wellhead pressure range and target trailer count per day, and we will size the separation, drying and filling equipment and confirm the fit.