Evaluation of Heavy Paraffin Solvent Injection in Langgak Oil Field

Abstract

LGK 14 and LGK 25 wells are oil production wells with high paraffin levels. The presence of paraffin around well perforation causes many problems. One of which is a decrease in the rate of production. It solved with rig less workover / well service (WO/WS) is an injection of heavy paraffin solvent. LGK 14 well uses sucker rod pump and LGK 25 uses an electrical submersible pump. Main steps in LGK 14 are injecting heavy parasol, soaking, displacing and producing. The other wells have differences where before the heavy parasol injecting, pump washed first. The challenges are high static bottom hole pressure (SBHP) and fluid reactions. The results show for LGK 14 well decreased oil rate from 25 BOPD to 21.77 BOPD after the heavy parasol injection. LGK 25 well increased the production rate from 21 BOPD to 29.99 BOPD.