Geophysical Engineering Study Program Physics Department Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Brawijaya held a Workshop on Geophysical Methods 2018 at the MIPA CENTER building on the 1st floor, Monday (10/9). With the theme “Analysis of Geothermal System and Structure on Geothermal Potential at Cangar, Batu, East Java of Indonesia.” This workshop is a national platform that aims to bring together academics, researchers and students involved in the Geophysic field. Held in the Faculty of Mathematics and Natural Sciences, this seminar invited a number of geophysic experts in Indonesia.

Dean of FMIPA, Drs. Adi Susilo, M.Sc., Ph.D officially opened the Workshop. The opening of the Workshop was attended by speakers and all participants consisting of one participant from the Bogor Institute of Technology (ITB), six people from the Surabaya Institute of Technology (ITS), two participants from Jambi University, and 13 participants from Universitas Brawijaya (UB).

In his speech the Dean of FMIPA, Drs. Adi Susilo, M.Sc., Ph.D said that this workshop was  add skills and knowledge together. He also said that under our current rivals not from within the country, but from abroad, therefore a very positive collaboration would be beneficial. “A workshop like this is usually worth twenty-five million rupiahs, but this time we are lucky to get training at no cost”, said the Dean.

This workshop was held from Monday – Friday September 10-14 2018 located in Cangar tourism park, Batu City, East Java. On the first day of opening, there were keynote speakers (1) Riki Irfan, ST., M.Si, Technical Subsurface Maganer from PT. Medco Cahya Geothermal, (2) Suwarto, S.Si, Section Chief of Observation and Information System, (3) Sukir Maryanto, M.Sc., Ph.D., Physics Department Lecturer at FMIPA UB.

Riki revealed, Indonesia is located between the Ring of Fire along the northeastern islands directly adjacent to New Guinea and along the southern and western Alpide belts of Sumatra, Java, Bali, Flores and Timor. Of the 129 volcanoes in Indonesia or 13 percent of all volcanoes in the world, it stretches from the island of Sumatra along the island of Java and then crosses to Bali, Nusa Tenggara to the eastern part of Maluku and turns north to the island of Sulawesi. Therefore Indonesia is one of the largest geothermal sources in the world. Riki explained that foreign investors are very interested in working on this geothermal because it could potentially be ranked 1 in the world caused by many mountains and earthquakes. Indonesia has 40% of the world’s potential geothermal resources, estimated at 28,000 megawatts (MW). Currently Indonesia is the second largest geothermal power producer in the world after the United States. The installed production capacity (2011) is almost 1,200 MW from six geothermal fields in Java, North Sumatra and North Sulawesi. In 2007, geothermal energy represented 1.9% of the country’s total energy supply and 3.7% of its electricity. Sukir Maryanto, M.Sc., Ph.D explained that the energy used in Indonesia is only 5%. Currently geothermal development has technological and licensing constraints, in this case related to land acquisition. In the workshop activity in Cangar, Batu City, participants will learn to look for potential underground structures using equipment such as Microseismic, Gravity and Magneto Telorik. Riki reminded that he always carries safety so that the field is not contaminated with substances that do not appear, especially those that do not smell [yogie].


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