Timeline: April 2025 – June 2025
A Permian Basin upstream operator engaged Bell Engineering® to execute a compliance program for 57 operating facilities across Texas and New Mexico under 40 CFR Part 60 Subpart OOOOb. Each site required a closed vent system evaluation and an individual PE-sealed certification report within a tight regulatory window.
Bell fielded engineering and survey crews to audit each facility. Scope at every site included walk-downs of tanks, separators, and associated vent routing; photographic and drone documentation of vent lines and control devices; and collection of the process data needed to simulate steady-state operation.
Back in the office, we modeled each facility in ProMax to confirm the control device — flare, VCU, or VRU — was sized correctly for the vent load under routine and upset conditions. Where sufficiency gaps were identified, we flagged them for the operator with a plain-language explanation of what the data showed.
The final output was 57 site-specific PE-certified reports, each with the facility-level diagrams, simulation summary, control device sufficiency statement, and engineer’s seal. The reports were delivered on schedule, and the operator had a defensible compliance record in hand when the OOOOb deadline hit.
