A system to estimate emissions from large numbers of oil and gas producing properties was developed by the BP's Permian Basin environmental group. The system developed by BP estimates air emissions on a quarterly basis for both internal and external reporting requirements. Additional benefits from the system have been the reduction of fuel gas use and other measures to improve operating efficiencies. This paper describes the key components of the air emission data gathering system, the results of the calculations showing the relative emission levels, and the economic benefits by implementing such a system.
The results of the emission reporting system enabled BP to accurately estimate the emissions from each property. Overall emissions for the Permian Basin were quantified. Operations people determined that fuel gas costs could be reduced through the use of lower or no bleed gas operated equipment. The study also helped to prioritize additional engineering work to look at fuel consumption in fired equipment. Internal and external reporting requirements were integrated.