Implementing Most Recent Technology using Nanoparticles as Enhanced Oil Recovery Technique at Pattern-13, Block D2, Layer Z600 at Rantau Field, NAD

Abstract

Enhanced Oil Recovery (EOR) is purposed to improve additional recoverable reserve and recovery factor by injecting material such as chemical, surfactant, microbial, steam, gas and recent technol- ogy such as nanoparticle material / Nano flooding. Nano flooding using nanoparticle material is one of the most recent EOR technique. Nanoparticles has size less than 10^-8 meters or 0.1 m and its size is much smaller than common reservoir rock pore throat (1-20 m). Hence it can propagate through deep reservoir throat and displace remaining oil that cannot be displace during primary and secondary process (water flooding). Its dominant mechanism to displace remaining oil in the reser- voir are wettability alteration by reducing contact angle between oil drop and
surface rock in the aqueous system to be more water-wet system.
EOR is also part of task force plan from President of Indonesia to increase Indonesian oil production immediately. The application of Nano flooding requires shorter time than any matured EOR tech- niques and it called fast-tracing method because its all simplicity in laboratory test activities and more cost efficient with much lower required volume and minor upgrading surface facilities, from study to field trial. The first field trial is going to be implemented at Rantau Field in structure Z600 Block D2 at Pattern-13. This pattern consists of one injector and 3 monitoring wells. The Original Oil in Place (OOIP) at Pattern 13 is about 2.092 MMSTB. Secondary process using water flooding has been conducted since 1997. However, the cumulative production is still low ~0.140 MMSTB or only achieved recovery factor (RF) less than 7% and Nano flooding is proposed to improve oil re- covery immediately.
This paper describes opportunity and challenges, lesson learned from current project and its imple- mentation design of Nano flooding project. The study and field trial implementation are going to be the first trial of Nano flooding in Indonesia. Nano flooding technique has achieved success stories in Canada and China as field trials. Once field trial at Pattern-13 succeed, the full-scale, including other fields can be highly potential to be implemented to increase Indonesian oil production.