The Andaman region has a charm for oil and natural gas company investors from the United Arab Emirates, Mubadala Energy. Having just discovered large amounts of gas potential in the Layaran-1 oil well, the company is immediately targeting the development of oil wells in Layaran-2 in the hope of getting bigger results.
The Special Task Force for Upstream Oil and Gas Business Activities (SKK Migas) revealed that Mubadala Energy immediately prepared plans for further exploration activities at other prospects in the South Andaman oil block. While waiting for the results of the post-drill evaluation of the Layaran-1 Well, which is located off the coast of Aceh, around 100 kilometers off the coast of northern Sumatra.
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Deputy Head of SKK Migas Nanang Abdul Manaf said Mubadala Energy is immediately preparing plans next year to drill the Layaran-2 block oil well and other prospects, such as in the Parang-Parang and Ramba oil blocks.
The oil rig used for drilling the Layaran-L oil well is currently being moved to the Andaman II oil block so that it can be used by Harbor Energy which is working on the Halwa and Gayo Wells.
In the Layaran-1 oil well, Mubadala Energy succeeded in discovering a large gas column with a thickness of more than 230 meters in the Oligocene sandstone reservoir. Complete data acquisition, including wireline, caring, sampling, and production test (DST) was carried out.
The exploration well was successful in flowing excellent quality gas with a capacity of 30 million standard cubic feet per day (MMSCFD). Mubadala Energy reports that the Iayaran-1 oil well has the potential to reach 6 trillion cubic feet (TCF) of gas-in-place, higher than the potential of the Geng North-1 oil well in the Kutai basin, Kalimantan, and is in the top three in the world.
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Mubadala Energy CEO Mansoor Mohammed Al Hamed said that the discovery of potential gas in the Iayaran-1 oil well will bring good commercial opportunities for the company at the current momentum of the energy transition.
The confirmed new discovery is also Mubadala Energi's second consecutive success in the Andaman oil field, after encouraging results at the Timpan-1 well in the Andaman II block.
The Ministry of Energy and Resources, Energy and Mineral Resources (ESDM) is still waiting for the Post-Drilling Study of the South Andaman Block Layaran-1 oil well, which has reportedly succeeded in identifying the gas potential of up to 6 TCF.
Director of Upstream Oil and Gas Business Development at the Ministry of Energy and Mineral Resources, Noor Afifin Muhammad, positively assessed the discovery of gas potential in the South Andaman Block carried out by Mubadala Energy.
Noor said that Mubadala Energy should add the data that is still needed, as well as geological and chemical studies before arriving at the economic calculations of promising projects.
Founder and advisor of the ReforMiner Institute, Pri Agung Rakhmanto, believes that the government must make it easier and facilitate further exploration efforts for world-class investors so that Mubadala Energy can prove gas reserves from the South Andaman Block.
Pri Agung said that the gas potential announced by Mubadala Energy still had to go through a series of studies and further well drilling to prove it and calculate its economics because it still needed further exploration with several more wells, then well testing, and then certification of the reserves. From this process, it will become more visible what field development and its economics are like.
Further exploration must be carried out at very large costs and investments. Moreover, the position of the South Andaman Block is offshore at a distance of around 100 kilometers off the coast of northern Sumatra and Mubadala Energy is very experienced in working on offshore projects.
STJ Budi Santoso, General Chair of the Association of Indonesian Geologists, said that the discovery of gas potential in the Layaran-1 Well brings new hope for gas exploration and development in Indonesia because the Timpan-1 Well and Layaran-1 Well have become play-openers for the Oligocene sandstone play. in this area, especially after the Arun Gas Field in the Special Region of Aceh Province, North Sumatra experienced a very large decline and became a regasification project.
According to Budi Santoso, Mubadala Energy is still in the early stages of evaluating the size of these resources, and requires appraisal wells, as well as preparation for the development phase, POD, so that a more accurate reserve value can be obtained in the field to then proceed to the production stage.
Even though it already holds concessions in South Andaman and Andaman I, Mubadala Energy is also reportedly interested in continuing to drill exploration wells in the Andaman III Block, whose ownership was released this year by Repsol Andaman B.V.
Director General of Oil and Gas at the Ministry of Energy and Mineral Resources, Tutuka Ariadji, said that Mubadala Energy wanted to try to continue exploration of the Andaman III Block, which was considered unsatisfactory by Repsol.
Mubadala Energy wants to try exploration because it has its own concept which is very different from the technique used by Repsoll, it has been drilled by Repsol, and the results are not good, but according to Mubadala Energy, the concept is very different.
Tutuka said Mubadala Energy had only conveyed its commitment to drill one exploration well this year on the block released by Repsol, even though the company does not have participating shares in the gas field.
Repsol Andaman B.V itself returned the management contract for the Andaman III Block to Indonesia after not extending additional exploration time which ends in June 2023. After withdrawing from the Andaman III Block, Repsol will focus on further developing its other portfolio in the Sakakemang Block, in the Banyuasin area, South Sumatra Province.
This decision was taken after the initial deep sea drilling of the Rencong-lX Well at the end of last year did not identify any reserves of oil and gas or experience a dry hole. The offshore exploration well is located at a seawater depth of around 1,100 meters at a distance of around 42 kilometers from the North Aceh coastline.
Drilling Well Rencong-1X is part of the definite commitment that Repsol helped complete in the Andaman III Block last year after the production-sharing contract (PSC)was first signed in November 2009. At that time, the block management shares were given to Talisman Energy Inc., a company from Canada.
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