Overall Objective of bp’s Methane Measurement Program bp is aiming to install methane measurement at all our existing major oil and gas processing sites by end 2023. This measurement will be consistent with the OGMP Level 4 requirements which requires source level reporting through direct measurement, sampling, and quantification methodologies, such as simulations or engineering calculations. bp is also developing a site level measurement program designed to meet OGMP Level 5 requirements. Site level measurement is an approach to methane measurement that is independent of the source level measurements utilized to meet Level 4 requirements. Technologies such as drone mounted methane measurement devices are an example of potential approaches. Source Measurement Consistent with the approach in OGMP, bp has taken a pragmatic approach to methane measurement, focusing on the largest sources of methane emissions. A review of sources indicated that attempting to measure all sources of methane including very small sources would be cost prohibitive and yield little additional environmental value. The sources chosen for this program include flares, vents, and power generation exhausts. Flare measurement includes standards for the volumetric measurement, compositional analysis (through gas analyzer systems or process simulation), and software to calculate DRE (destruction and removal efficiency) of methane. DRE is a percentage of a specific compound, in this case methane, removed or destroyed relative to the total of that compound entering the flare. The volumetric and compositional analysis are based on mature technology, but the software for DRE calculations is relatively immature. bp has worked with vendors to determine the uncertainty of calculations and to what range of operations they are applicable. In this process we have developed insights as to how composition, flowrate, tip design, size, and atmospheric conditions impact flare DRE performance. Vent measurement includes standards for volumetric measurement and compositional analysis similar to flares, but without the need for DRE calculations. Power generation exhausts (electricity generation and direct drive) measurement includes the collection of operational data and software to calculate the destruction efficiency of methane. Most of our learnings from this process are not surprising, but we now understand the quantitative impact on methane emissions. Machines running at low loads or that are tuned for low SOx and NOx emissions emit higher methane than those optimized for highest fuel efficiency, due to methane slip. Site Measurement A variety of technologies were considered for methane site measurement, and there is more work to further refine these technologies over time. bp has utilized a commercially available miniaturized methane measurement device mounted on either a fixed wing or quad copter drone. The drones are flown in a pattern that allows methane readings to be taken at multiple points up and down wind of our assets. This data is then analyzed along with atmospheric data to develop a methane rate for the site. This data is then reconciled against our source/measured methane emissions for the same time period. The sum of the source measurement data should agree with the site measured data within the uncertainty tolerances. Any discrepancies need to be investigated and addressed. Conclusion bp’s approach to methane measurement is pragmatic, uses proven technology, and intended to align with OGMP 2.0 Level 4/5 requirements. We are working with regulators to help them understand the strengths and weaknesses of technologies and processes we’ve assessed in order to help develop technology neutral and effective regulations. We are also partnering with various suppliers to achieve these goals which would help improve the commercially available offerings for all. We have found great benefit working with other companies in OGMP and would recommend joining.