Publications

After completing the Geological Geophysical and Reservoir (GGR) model revision of North East Air Serdang (NEASD) and the Guruh (GRH) field, Pertamina Hulu Energi Ogan Komering (PHE OK) evaluated the water flooding performance that has been applied since 2006. This paper explains the success story of the water flooding application using the peripheral method in the carbonate reservoir NEASD and the GRH field in the Ogan Komering Block. Water flooding was successfully applied in the NEASD and Guruh fields. The carbonate reservoirs are well connected as evidenced by tracer tests conducted in 2006. The waterflood development was based on running the simulation water injection sensitivity cases, economic evaluations, and entailed converting the unproductive wells into injector wells and building an injection system surface facilities. The approved Plan of Further Development (POFD), covered field wide application of the waterflood and performance surveillance monitoring. The POFD of water flooding in NEASD and Guruh field was approved in 2006 by the government and fulfilled all of the commitments in 2018 with oil incremental production of 4.85 MMBO from a do nothing baseline recovery factor (RF) of 26.5% going up to 34.2% (post water flooding). Although this had fulfilled the programs and economic commitment, currently both of the fields still produce about 1500 bopd. After updating the Geological Geophysical and Reservoir (GGR) model in 2019, it is predicted that the total economic recovery factor (RF) of the development can reach 41,7% by the end of the PSC contract in 2038.