Targa: Hopson Gas Plant 09/22/25

Описание: Optical gas imaging is a technology that makes visible the normally invisible pollution from oil and gas.

Oilfield Witness uses a Teledyne FLIR G620 optical gas imaging (OGI) camera that is calibrated to detect hydrocarbons (methane and volatile organic compounds) in the 3.2 - 3.4 micrometer wavelength band of the electromagnetic spectrum (also called the energy spectrum). Humans see in the 0.4 - 0.7 micrometer range (visible light).

Hydrocarbons absorb infrared light, so they appear opaque when using the OGI camera allowing us to "see" the methane and VOC emissions.

​​A video introduction to using optical gas imaging to identify methane emissions.    • An introduction to using optical gas imagi...  

Sharon Wilson, Oilfield Witness Director, became a certified OGI thermographer in June 2014. Since then, she has documented oil and gas pollution all across the U.S. and in other countries. Her OGI videos are peer-reviewed by Tim Doty, Level III thermographer and contract instructor for the Infrared Training Center. Doty worked +28 years for the Texas Commission on Environmental Quality (TCEQ), the state environmental regulatory agency.

Charlie Barrett, Thermographer and Field Ecologist at Oilfield Witness became a certified OGI Thermographer in March of 2022. He has conducted field work in New Mexico, Texas, Colorado and Louisiana.