Process Safety Study with Choke Optimization

Key relief contingency cases covered, incl. inadvertent valve opening, choke failure, gas blowby and blocked outlet validated with high-fidelity

BPT investigated the best-fit choke sizing regarding asset integrity.

The process safety study was performed with interlinked multiphase flow and dynamic process simulator.

The dynamics of the wells, flowlines, topside process and the flare system are utilized (“from well to flare tip”).

API Std 521 relief contingency cases covered, such as inadvertent valve opening, choke failure, gas blowby, blocked outlet.

Production chokes are sized based on maximum utilization of the safety barriers
Consistency between plant, report and prediction tools is taken care of
Detailed documentation of each relief scenario, including PSV utilization (in accordance with API Std 520) & flare rates, piping loads and PSD system response
Can effectively be performed from concept phase, since automated workflow for flare design & verification
Do it “right first time” to avoid unnecessary late modifications or even lost production
New tie-backs to existing facilities designed according to the integrity limits