Flowline Modification of Vapour Closed Drain to Acid Flare at Matindok CPP in Reducing CO2 Emission

Abstract

Pertamina EP Donggi Matindok Field produces gas and condensate by transforming natural raw gas to sweet gas through several processes. LP Vent Stack is a facility to release non-hazardous gas such as N2 and O2 excess to ambient air. However, waste gaseous in Matindok Central Processing Plant (CPP) that comes from Condensate Tank, Closed Drain, and Produced Water Tank causing vapour release, where this vapour release is mainly detected from Closed Drain. Gaseous release from Closed Drain which contains high hydrocarbon and H2S with characterization of high Lower Explosive Limit (LEL) can cause potential explosive when contacted with heat source, electricity, or lightning. On January 20th 2022 and February 15th 2022, flame occurred in LP Vent Stack located in Matindok CPP. Flowline modification of Closed Drain to Acid Flare is conducted to prevent potential flame and reduce emission in LP Vent Stack. The gaseous release from Closed Drain is being modified to Acid Flare as purge, hence reducing the usual purge needed from fuel gas and able to reduce 352.86 kg of CO2 emission in 2022.