Universitas Pembangunan Nasional "Veteran" Yogyakarta | Geological Engineering

Penelitian dilakukan pada Formasi Cibulakan Atas, Cekungan Jawa Barat Utara dan Formasi Gumai, Sub-Cekungan Jambi. Secara geologi, umur kedua formasi relatif sama, yaitu terbentuk pada Miosen Awal-Miosen Tengah. Litologi penyusun kedua... more

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- by Rian Cahya Rohmana
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- 4
  Petrophysics, Petroleum geology, Reservoirs, Log analysis

Penelitian dilakukan pada Formasi Cibulakan Atas, Cekungan Jawa Barat Utara dan Formasi Gumai, Sub-Cekungan Jambi. Secara geologi, umur kedua formasi relatif sama, yaitu terbentuk pada Miosen Awal - Miosen Tengah. Litologi penyusun kedua... more

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- by Rian Cahya Rohmana
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- 8
  Engineering, Geology, Physics, Humanities

Zona Rembang dikenal sebagai salah satu cekungan penghasil migas di Indonesia, terutama karena peran besar salah satu reservoarnya yang terkenal, yaitu Formasi Ngrayong. Penelitian yang di daerah Mulyoagung, Tuban, akan menggunakan data... more

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- by Rian Cahya Rohmana
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- 4
  Geology, Geomorphology, Physics, Humanities

Objek studi difokuskan pada Formasi Tapak yang terendapkan pada Miosen Akhir – Pliosen Akhir di Sub-Cekungan Banyumas. Pengungkapan serta rekonstruksi model lingkungan pengendapan purba didasarkan pada analisis detail sedimentologi dan... more

In recent years, digitalization of the outcrop technique is a powerful tool - for detailed analysis on the geo-software. Thus, the integration between outcrops and subsurface data for reducing the subsurface uncertainties. This provides... more

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- by Rian Cahya Rohmana
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- 2
  Geology, Facies

Pemetaan digital dapat menghasilkan analogi digital dari singkapan sebagai representasi dan gambaran kondisi bawah permukaan pada daerah yang memiliki kesamaan karakteristik geologi. Penerapan metode ini memungkinkan interpretasi dan... more

Evaluation of the drainage area of a well is an effort to obtain success in planning field development. The size of the drain area not only affects the production rate but will also affect the distribution of pressure and saturation as... more

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- by Rian Cahya Rohmana
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- 4
  Pressure Drop, Drainage, Petroleum Engineering, Production Rate

Indonesia merupakan negara penghasil CO2 yang besar, salah satunya berasal dari industri minyak gas bumi(migas). Indonesia berkomitmen di Paris Agreement untuk mengurangi emisi karbon sebesar 29 - 41% tahun 2030dengan pengenalan energi... more

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- by nabella nurul fitri
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- Petroleum geology

Tiga aspek holistik yang tak terpisahkan.

Indonesia has the largest geothermal energy potential in the world with potential value ±28 GWe, but the potential of geothermal low enthalpy is still not utilized properly. On the other hand, improvement in the salt industry needs to be... more

Pengertian ilmu ukur tanah : cabang dari ilmu Geodesi yang khusus mempelajari sebagian kecil dari permukaan bumi dengan cara melakukan pengukuran-pengukuran guna mendapatkan peta. Pengukuran yang di lakukan terhadap titik-titik detail... more

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- by bayu sandy
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- GRADE SCHOOL PROJECT

Grasberg Block Cave is an underground mine passed under an open mine Grasberg Reserve, with the "Cu-Au Porphyry" deposit type, located within the Contract of Work A (COW "A") of PT. Freeport Indonesia, Ertsberg District, Papua. The... more

Geologi berasal dari kata Yunani, geos berarti bumi dan logos yang berarti ilmu. Jadi Geologi adalah Ilmu yang mempelajari material bumi secara menyeluruh, termasuk asal mula, struktur, penyusun kerak bumi, proses -proses yang berlangsung... more

A major wrench zone, left-lateral slip in nature, strongly deformed a series of Late Oligocene to Pleistocene rocks in the northern coastal line of East Java and its eastern islands and offshore areas. The fault zone trends west – east... more

A major wrench zone, left-lateral slip in nature, strongly deformed a series of Late Oligocene to Pleistocene rocks in the northern coastal line of East Java and its eastern islands and
offshore areas. The fault zone trends west – east forming a deformed zone of 15 to 40 km wide and 675 km long from Rembang area in the west through Madura Island and Kangean
Islands to Sakala offshore area in the east. The deformed zone is called the Rembang- Madura-Kangean-Sakala (RMKS) Fault Zone.
Based on the regional setting of East- and Southeast Sundaland, it is known that the RMKS Fault Zone occurred at the hinge belt or shelf edge to slope area of a geologic transition from the stable Eastern Sunda Shelf to the north (the Northern Platform) to the deep-water area to the south. There is a contrast of sedimentary facies to the north and south of the RMKS Fault Zone. Tectonically, the stable Eastern Sunda Shelf is considered to overlie the expected micro-continent called the Paternoster-Kangean. Therefore, the RMKS Fault Zone is located at the southern margin of the micro-continent. Basement lithology and configuration to the north and south of the RMKS Fault Zone are different.
A number of mechanisms are considered to origin the RMKS Fault Zone. These include : the westward stress driven by the collision of the Buton-Tukang Besi and Banggai-Sula to the
east of Sulawesi, westward stress due to the collision of Australia with Timor and anticlockwise bending of the Banda Arc, and northward stress due to the subduction of the Indian
oceanic crust beneath Java. The initiation of the RMKS Fault Zone was in the upper Early Miocene in Sakala area and younger westward until the Middle Miocene in Rembang area.
Along the RMKS Fault Zone, flower structures are definitely identified on seismic sections, showing basement-involved, deeply-rooted vertical master faults with upward diverging
splays/strands that have mostly reverse separations. In map view, these splays are mapped as fold and fault belts trending west-east and west northwest-east southeast. Extensional
component of the wrench zone subsided the Paleogene rifted blocks such as the Central Deep and formed a number of normal faults. Tectonic inversion related with both pure and simple shear deformations is observed along the fault zone. Shale diapirism commonly occurs to the south of the fault zone and its occurrence is related to wrench tectonism in thick shale
sequences deposited rapidly to the south of the RMKS Fault Zone.

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- by Awang Satyana and +1
  C. Prasetyadi
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- 3
  Structural Geology, Tectonics, Regional Geology of Indonesia

Geological Engineering

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