Valve conversion proves valuable for the environment

With the help of our Environmental Innovation Fund, our South Piceance field operations team in Colorado has successfully converted approximately 500 high-bleed valves to their low-bleed, environmentally-friendly counterparts.

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With the help of our Environmental Innovation Fund, our South Piceance field operations team in Colorado has successfully converted approximately 500 high-bleed valves to their low-bleed, environmentally-friendly counterparts.

Pneumatic devices, such as pressure controllers, temperature controllers and liquid level controllers, are widely used throughout production and midstream operations. Pneumatic devices work by converting pressure energy from a compressed gas, such as air or natural gas, into mechanical motion. Being readily available, pressurized natural gas has become the industry choice for powering pneumatic instruments. Once the gas has been used to power the instrument, it is left to vent or bleed to the atmosphere. Vented emissions are the largest source of methane emissions in oil and gas activities.

Retrofitting or replacing high-bleed valves with low-bleed devices lowers methane emissions and increases production by utilizing gas that is currently vented to the atmosphere. After converting multiple liquid-level controllers to low-bleed valves, the vent rate was reduced by over 98 percent, conserving more than an estimated 64 million standard cubic feet per year of natural gas and reducing greenhouse gas emissions by an estimated 24,000 tonnes of carbon dioxide equivalent per year.

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As of 2014-10-02 12:10. Minimum 15 minute delay