Zigong Operating Area · 2015
Kong 6 Well
The multistage pump was replaced in 2015. Meter readings showed 39.5% less electricity for the same volume of gas-field water.
PetroChina · Shunan Gas Mine · 2009–2016
At PetroChina’s Shunan Gas Mine, EHIK pumps replaced multistage centrifugal pumps at four gas-field water stations and two pumps at the Rongxian purification plant. Here are the recorded results.

At a Glance
Recorded results from each site.
| Site | Duty and change | Recorded result |
|---|---|---|
| Kong 6 Well · Zigong · 2015 | Gas-field water; motor 90 kW (approx. 121 hp) to 45 kW (approx. 60 hp) | 39.5% less electricity for the same volume of water |
| Wei 001-H1 Well · Leshan · 2014 | Gas-field water; motor 90 kW (approx. 121 hp) to 45 kW (approx. 60 hp) | 23.5% less electricity per cubic metre (approx. 264 US gal) of water |
| Jing 4 Central Station · Luzhou | Gas-field water; multistage pump replaced | 48.3% less electricity per 10,000 m³ (approx. 2.64 million US gal) of water |
| Bao 46 Well · Yuxi | Gas-field water; motor 75 kW (approx. 101 hp) to 45 kW (approx. 60 hp) | A smaller motor for the same duty |
| Rongxian purification plant · 2009 and 2016 | Hot water: motor 15 kW (approx. 20 hp) to 7.5 kW (approx. 10 hp). Solvent circulation: pump replaced | Solvent pump: more than 500 kWh of electricity saved per day |
Before and After
Photos from the project records: the multistage pump before the change and the EHIK pump after it.
Zigong Operating Area · 2015
The multistage pump was replaced in 2015. Meter readings showed 39.5% less electricity for the same volume of gas-field water.
Leshan Operating Area · 2014
The motor rating went from 90 kW (approx. 121 hp) to 45 kW (approx. 60 hp). Meter readings showed 23.5% less electricity per cubic metre (approx. 264 US gal) of gas-field water.
Luzhou Operating Area
An EHIK pump replaced the multistage centrifugal pump. Meter readings showed 48.3% less electricity per 10,000 m³ (approx. 2.64 million US gal) of water pumped.
Yuxi Operating Area
An EHIK pump replaced the multistage centrifugal pump. The motor rating went from 75 kW (approx. 101 hp) to 45 kW (approx. 60 hp).
Rongxian · 2009 and 2016
In 2009, the hot-water pump motor went from 15 kW (approx. 20 hp) to 7.5 kW (approx. 10 hp). In 2016, the new solvent-circulation pump saved more than 500 kWh of electricity a day.
For Your Site
How to check what a replacement could change at your site.
Record its input power, the volume pumped and the running hours.
Use the same liquid, flow and pressure for both pumps.
EHIK can make the flanges to match your existing piping; the baseplate and drive are confirmed on site.
Replacing a Gas-Field Pump?
Send the water duty and the current pump data. EHIK checks the fit and the likely effect of a replacement.
Discuss a ReplacementA proposed pump matched to the required liquid duty.
Equipment dimensions for checking the layout and connections.
Help with operating conditions, the proposed pump and supply scope.
Wear parts, seals, flow range and recorded replacement results.
Read the comparison ↗Pulsation, wear parts, maintenance and where each pump fits.
Read the comparison ↗Explore new-project pumping duties and other field references.
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