1 Gundih CCS Pilot Project: Current Status of the First Carbon Capture and Storage Project in South and Southeast Asia Regions Rachmat Sule 1 , Wawan Gunawan A. Kadir 1 , Toshifumi Matsuoka 2 , Harris Prabowo 3 , Gusti S. Sidemen 4 , and Indonesia - Japan research team members of Gundih CCS Pilot Project 1 Institut Teknologi Bandung - Indonesia 2 Fukada Geological Institute - Japan 3 PT Pertamina – Indonesia 4Directorate General of Oil and Gas, Republic of Indonesia Abstract The Gundih gas field has been in operation since the end of 2013. The produced gas comes from three main geological structures: Kedung Tuban, Randu Blatung and Kedung Lusi, which collectively are expected to produce around 60 million standard cubic feet of gas per day over the next decade. The CO 2 content of the produced gas is around 21%. After processing at the Central Processing Plant (CPP), around 15% of the CO 2 is separated into an almost pure CO 2 stream, or around 800 tons per day of CO 2 . To date, the separated CO 2 has been flared into the atmosphere. The Gundih Carbon Capture and Storage (CCS) Pilot Project would inject around 30 tons of CO 2 per day over a two year period (for total injection of around 20,000 tons). The target formation is the Ngrayong Formation, which is composed of sandstone (silty sandstone) and lies at a depth of 830 – 1,100 meters below surface. Site selection studies indicate that the structure around the (suspended) Jepon-1 well offers the best opportunity for CO 2 storage activities. The ‘Jepon structure’ is approximately 22 kilometers from the Gundih CPP (though transportation of the liquefied CO 2 will be by truck over paved roads for a travelled distance of around 42 kilometers). Geological and other feasibility studies, regulatory framework development and public engagement activities have been carried out since 2012. Throughout 2015 and 2016 baseline studies has been conducted for gravity, time-domain electromagnetic and seismic reflection survey, a key component of the subsurface CO 2 monitoring system. In addition, preparations will be made for a continuous gravity survey and micro-earthquake observation, required for continuous observation of CO 2 stored underground. With funding from the ADB, the project team will also work on designing and constructing the surface facilities for CO 2 injection. This paper will describe the current status of Gundih CCS Pilot Project preparation, in which the CO2 injection is targeted to be started by the end of 2019.