Sunday, February 21, 2016

Remote Flare Gas Flow Measurement

remote flare gas flow monitoring
Remote flare gas
flow monitoring
As state, national, and international government regulations for monitoring flare gas emissions become stricter, so do the demands for measuring and reporting them. Environmental authorities around the world are requiring process plant operators to continuously monitor and record flare emissions and associated flow rates and gas composition. As a result of these new regulations, innovative flow meter manufacturers have designed a complete flow monitoring package for the upstream and midstream oil & gas exploration companies. This flow system provides companies with the proper daily and totalized mass flow rate information of what is flowing out of the flare.


The key technical specifications for these flow monitoring systems are:

  • Direct mass, volumetric, or velocity flow measurement of liquids or gases 
  • 85 to 245 VAC, 50/60 Hz or 18 to 36 VDC (1 Amp max.) 
  • 4-20 mA Output, RS485 digital, totalizer pulse for total flow 
  • 1 to 100 FPS Flow Range 
  • -40 to 350 F temperature range as std. 
  • 0 to 25 PSIG std. (0 to 500 PSIG) optional
Thermal Instrument Company, a manufacturer in Trevose, PA offers a a package comprised of the essential instrumentation needed to measure the mass flow rate of the gaseous mixture to the flare - the Model 9500 FGS Flare Gas Flow Monitoring System. Since these well sites are remote in some cases, they also offer the complete system as a solar powered design with NEMA 4X enclosure, and configurable totalization module for any type of recorded format. Actual flow rate and totalized accumulated flow can be viewed and downloaded locally or remotely. 

The Thermal Instrument package offers these features:
  • Monitoring Total Gas Flow to Flare Stacks
  • Monitor Gas Feed Lines to Flare Header
  • High Flow Range Turndown Ratios to 100:1+ (resolution up to 1000:1)
  • Provides accurate monitoring of flare gas flow for compliance reporting to 40 CFR Part 98 emissions reporting (QUAD O & Subpart W) 
  • Absolutely No Moving Parts
  • Teflon Coated Probe for H2S content
  • Accuracy to +0.2% of Full Scale
  • Standalone Mass Flow Meter or Complete Solar System with Wireless Data Retrieval
  • No Temperature or Pressure Compensation
  • No Pressure drops using in-line sensor
  • Optional Packing Gland for ease of extraction
  • Designed & Manufactured in the USA