CCOP-53AS/3-7 COORDINATING COMMITTEE FOR GEOSCIENCE PROGRAMMES IN EAST AND SOUTHEAST ASIA (CCOP) 53rd CCOP Annual Session 16 – 19 October 2017 Cebu City, Philippines Member Country Report of INDONESIA Submitted by Indonesian Delegation / Geological Agency (For Agenda Item 3) COORDINATING COMMITTEE FOR GEOSCIENCE PROGRAMMES IN EAST AND SOUTHEAST ASIA (CCOP) CCOP Building, 75/10 Rama VI Road, Phayathai, Ratchathewi, Bangkok 10400, Thailand Tel: +66 (0) 2644 5468, Fax: +66 (0) 2644 5429, E-mail: [email protected], Website: www.ccop.or.th ANNUAL MEMBER COUNTRY REPORT Country: INDONESIA Period: 1 July 2016 - 30 June 2017 I. OUTREACH The technical activities has been reclassified into three sectors and seven programmes as follows: Geo-Resources (Mineral, Energy, Groundwater), Geo-Environment (Coastal, Geohazard, Environmental Geology), and Geo-information (Geo data and Information Management) GEO-RESOURCES SECTOR 1. MINERAL PROGRAMME 1.1. Summary Several companies holding license for exploration activities in mining for metallic mineral have reported the results of their activities and the development of resources and reserves of several minerals. Several mineral commodities resources and reserves are shown in the following figure. Figure 1.1. Bar charts of some mineral commodities resources and reserves of Indonesia 2012 - 2016 CCOP Member Country Report: INDONESIA 1 The government has planned to revise Law No. 4/2009 due to some provisions in this regulation that can not be implemented/experiencing obstacles in the implementation, need to be adjusted with Law Number 23 Year 2014 on Local Government, The Constitutional Court Decision, and the government policy to simplify licensing and public services, including in this case licensing of mineral sub-sector. 1.2. Annual Review of Individual Technical Activities During July 2016 – June 2017 period, Geological Agency conducted mineral exploration at several areas. In the second semester of 2016, metallic mineral exploration conducted at Southeast Minahasa, North Sulawesi, Banjar and Tanah Laut, South Kalimantan, and Gowa, South Sulawesi, whereas non metallic mineral exploration has been done at Merangin, South Sumatera, Tanggamus, Lampung and East Kotawaringin, Central Kalimantan . In the first semester of 2017, metallic mineral exploration has been done at Belu, East Nusa Tenggara, Tanah Datar, West Sumatera, Bangka, Bangka Belitung Island, Jayapura, Papua. Joint Geochemical Survey between Geological Agency of Indonesia and China Geological Survey has been carried out in the northern part of Sumatera. Non metallic mineral exploration also carried out in several areas: limestone at South Konawe, Southeast Sulawesi, quartz sand at East Kotawaringin, Central Kalimantan and Kalium at Kudus, Central Jawa. Figure 1.2. Location Map of Metallic Mineral Survey in 2nd Semester 2016 – 1st Semester 2017 1.3. Proposed Future Activities Nothing to Report. 2 CCOP Member Country Report: INDONESIA 1.4. Assistance Required from CCOP/Other Member Countries in Support of Future Activities Capacity building program in exploration methodology and training program for integrated geophysical and geochemical data interpretation especially for REE are needed in order to achieve expected exploration targets and to get more new prospect discoveries. The exchange of various exploration experiences through establishment of special forum dealing with relevant and actual issues between CCOP member countries would be helpful to cope with exploration problems encountered in any exploration project plan. 1.5. Assistance Offered to CCOP/Other Member Countries in Support of Future Activities Nothing to Report 1.6. Others Comments Direct responses on reviews mentioned above for improvement of project outcomes and for perfecting any exploration plans would be kindly required from technical director of CCOP. Programme Contact Person: Hedi Hidayat Center for Mineral, Coal and Geothermal Resources Geological Agency of Indonesia Jl. Sukarno Hatta 444 Bandung, West Jawa, Indonesia Phone : +62-22-5202698; +62-22-5205572 Fax : +62-22-5226263 Email : [email protected] 2. ENERGY PROGRAMME 2.1. HYDROCARBON 2.1.1. Summary One of the Indonesian government's strategic program is to increase the Reserve Replacement Ratio (RRR) to more than 100% in the next five years through one of the programs in House of Energy Sovereignty (to conduct aggressive exploration activities). Status of Indonesian total oil reserves in 2016 is 7,251 billion barrels or decreased by 0.049 billion barrels (0.67%) compared to oil reserves in January 1st, 2015 (7.3 billion barrels). For natural gas, there is also decresed in reserves of 151.33 TCF to 144,09 TCF or decreased by 7,27 TCF (4,8%) (LEMIGAS, 2016). Based on data of late 2016, national reserve potential of oil and gas is 5.2 billion barrels of oil equivalent, consisting of 2.7 billion barrels of oil and 14 trillion cubic feet of gas, estimated from 108 proven oil and gas discovery wells (KEN, 2016). To support the government’s policy in order to increase the Reserve Replacement Ratio (RRR) to more than 100% for the next five years, one of the exploration research activities of CCOP Member Country Report: INDONESIA 3 LEMIGAS during the years 2017 are Intensification of Oil and Gas Exploration in Indonesia (especially eastern area). Indonesia has 82 Tertiary sedimentary basins and 4 pre-Tertiary Basins. 46 of them are located in Eastern Indonesia (BPMIGAS - LAPI ITB, 2008). Based on the basin status of 2017, there are 17 production basins, 14 basins with hydrocarbon discovery, 17 basins with hydrocarbon indication, 38 basins with no hydrocarbon indication. Based on classification of hydrocarbon resources, there are total lead resource around 71019,84 MMSTB of oil and 580274,4 BSCF of gas, total drillable resource around 15930,5 MMSTB of oil and 122346. BSCF of gas, total postdrill resource around 1248,34 MMSTB of oil and 8739,3 BSCF of gas, and total discovery resource around 123,1822 MMSTB of oil and 1790,9 BSCF of gas. Figure 2.1. Oil and Gas Reserve Map, Status 2016 (LEMIGAS, 2016) 2.1.2. Annual Review of Technical Programs/Activities The study areas for exploration are mostly focused in Papua Island, Arafura Sea, Sulawesi and Kalimantan, including Tanah Merah, Atsy, Merauke, MisoolTimur, East Kai, North Bone Gulf, Tomini and East Tanimbar. To increase the economic value of the blocks, reevaluation of unsold blocks is conducted to Morowali, Sunda Strait IV, Halmahera III and Tarakan II areas. The result of reevaluation reveals that Sunda Strait IV and Tarakan II are interesting in petroleum system perspective, whilst Morowali and Halmahera III are not prospective. 4 CCOP Member Country Report: INDONESIA Figure 2.2. Oil and gas resources in Indonesia Figure 2.3. Research area map of oil and gas working area in 2016 2.1.2.1. Intensification of Oil and Gas Exploration in Indonesia Intensification of Oil and Gas Exploration in Indonesia is collaboration research among LEMIGAS, Geological Agency, National Data Center of Minisitry of Energy and Mineral Resources (MEMR) and Directorate General of Oil and Gas. 1) Atsy Block Based on geochemical analysis, this basin has problems in the potential source rock and maturity level of the source rock. In addition, the configuration structure does not support the formation of significant structural traps, and this is characterized by the flat seismic reflector. CCOP Member Country Report: INDONESIA 5 2) East Kai Block Petroleum system of East Kai area has been active as it is indicated by the occurrence of a number of oil and gas seepages in the Yamtimur area. In general, the East Kai Block has a complete petroleum system elements. Based on a comprehensive review of the hydrocarbon system, the study area has potential to generate and stores hydrocarbon. 3) Tanah Merah Block The Tanah Merah Block is characterized by a thin sedimentary rock sequence that is not supporting for maturation process and the absent of sedimentary rock interval that has potential as a source rock (low content of organic material and maturity level). Related to the reservoir rock, Wonimogi and Kais Formations have a low porosity value (9 - 11%). The research of hydrocarbons potential study of the area is still on progress. 4) Tomini Block The formation with a good quality and quantity of organic material has not be found. Eventually, the speculative volumetric calculation indicates uneconomic potential. 5) Merauke Block Due to thin sedimentary rock sequence, maturation process of source rock is not supported. However, there is minor indication of active petroleum system in the outcrop (seepage) as shown by geological survey done by PSG, whilst oil show from well data is absent. Based on geochemistry analysis, Mesozoikum Piniya Formation is the main candidate to become potential source rock (thickness is 300-400 meters, TOC is 0.8 to 1.4%). The main problems of petroleum system in this area is the absence of good quality of reservoir. 6) Misool Block The Eastern Misool block is located in the offshore northeast of Misool Island which geographically includes in the regional Salawati Basin. Salawati Basin is a mature basin that has been proven to have an active petroleum system as evidenced by the occurences of many seepages of oil and also with some oil and gas fields that have been producing. The source rocks of Permo-trias and Jura intervals have excellent potential and quality with total organic carbon ranges of value is 0.5 to 10% and have reached matured phase with Ro value reaching 1,0. This block has good potential to generate and store hydrocarbon. 2.1.2.2. Unconventional Hydrocarbon The study on the Nias and Meulaboh areas (Sibolga Basin) has been conducted to identify biogenic gas potential. The result of the study indicates that these areas have good potential in both Miocene carbonate and Pliocene siliciclastic plays. 2.1.2.2.1. Biogenic Gas in Nias Area Nias Area is located in The Sibolga basin (fore arc basin) which placed in the western part of Sumatra offshore.