Across many of the world’s natural gas production fields, gas pneumatic devices used for
process control and chemical injection vent methane directly into the air. TotalEnergies
lowered the methane emissions intensity of its operated gas facilities to below 0.1% in 2020,
but to achieve a further objective of 20% reduction of absolute methane emissions from
operated oil and gas assets in 2025 compared to 2020, it targeted venting at its Barnett gas
field in Texas.
In March 2021, TotalEnergies began a 30-day trial of Qnergy’s CAP3 compressed air
pneumatics technology. The pilot study sought to quantify and characterize the pneumatic
gas and electric power requirements of a typical 4-5 well pad on the Barnett field. It tested
the feasibility of converting from natural gas to compressed air powered instrumentation, thus
eliminating methane release during the process.
Up to 98% of methane emissions were eliminated. Using remote monitoring to assess
performance, the CAP3 air system logged 42,515 ft3 of mitigated emissions. The solution
proved simple to install and operate, while also demonstrating reliability. The on-site test with
TotalEnergies, an OGCI member company, also supports the rapid deployment and scaling of
Qnergy, a Climate Investments’ portfolio company, and similar growth-stage companies.
Gas operated instruments will not be used on any new developments on the Barnett field, or
across the TotalEnergies asset portfolio.
The company is deploying 100 Qnergy CAP3 units on its Barnett field through 2021 and 2022,
with potential for a further 300 by the end of 2024. Once fully deployed, this replacement of
gas pneumatics would reduce methane venting emissions by approximately 7,000 tonnes a