Mitigation of fugitive hydrocarbon emissions

Mitigation of fugitive hydrocarbon emissions

Challenge:

The Canadian government is implementing the climate change agenda, and with it, the practice of well site fugitive emissions venting will shift significant new costs to operators. The AER (Alberta Energy Regulator) now requires regular emissions reporting from producers, and noncompliance can result in fines.

Solution:

OilPro is successfully integrating our PowerGen Poweren with instrument air skids. PowerGen uses a Free Piston Stirling Engine (FPSE), a unique engine recognized by NASA as “the most reliable generation technology in history.”

The instrument air combination allows displacement of otherwise vented methane emissions on natural gas pneumatic systems while also burning a smaller total volume of hydrocarbons vs what would be vented as instrument gas. This combination has a significant economic and environmental impact.

OilPro believes there is definite merit to the use of the PowerGen’s generous remote power supply (5,650 Watts), thus allowing previously impossible instrument air applications in remote sites not serviced with utility gas or power. The PowerGen’s ability to run-on poor-quality fuels from wellhead gas to low H2S content gas, makes that even more economical.

The ability to integrate available hot glycol for on-site heat tracing or other heating duty, boosts efficiency from the 30-40% range up through to the 70-80% range, giving this FPSE technology a significant edge over traditionally used solar and thermoelectric and fuel cell solutions. Efficiency actually increases with colder weather.

Site applications:

We provide power solutions to anyone requiring critical remote power solutions in response to AEP (Alberta Environment and Parks) regulations to create offsets usable under CCIR (Carbon Competitiveness Incentive Regulation) for advanced environmental compliance.

Emissions Reduction and Energy Efficiency:  OilPro’s PowerGen burns a variety of wellhead gases to addresses site emissions with a near-perfect stoichiometric ratio, blower-assisted combustion process, which in turn creates electric power in the Stirling Engine’s built-in alternators. This power is used for any combination of:

•             pneumatic instruments (60-90 low bleed instruments)

•             site cathodic protection and pipeline ICCP

•             heat tracing/heaters/water tank heating

•             flow control

•             metering

•             monitoring

•             lighting

•             actuators

•             pumps (10 gpm for 1,000-3,000’ or 2-5 gpm for 5,000’ well)

•             compression power for flowline pressure reduction

•             onsite analytics

Major efficiency gains are achieved by substituting vented wellhead gas pneumatics with air systems, and straight conversion to electrical power without the need to tie into external electrical infrastructure and long-term contracts. Significant torque available allows larger electrical systems to be powered compared to other remote power sources.

Reliability:

Service life: Although the PowerGen engine designed for 80,000 maintenance-free operational hours, units are already proven to run over 13 years continuously at a NASA test site.

Remote power manager cloud-based control app

Maintenance:   

  • None to the engine itself.
  • 1-2 hours/year of scheduled system maintenance:
    • clean air intake filter, check glycol level
    • periodic scheduled maintenance to glycol circulation system, blower, seals, onboard system battery.

The equipment cost is less than $40 dollars a day

contact us for more details. OilPro office 403-215-3373

Additional resources

https://www.capp.ca/responsible-development/air-and-climate/methane-emissions

https://www.alberta.ca/alberta-emission-offset-system.aspx

https://www.alberta.ca/carbon-competitiveness-incentive-regulation.aspx

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