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All Journal Bulletin of Scientific Contribution : Geology Jurnal Geologi dan Sumberdaya Mineral
Iyan Haryanto
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Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Environmental Science

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STUDI GEOLOGI DAN GEOFISIKA POTENSI HIDROKARBON FORMASI AIR BENAKAT LAPANGAN X CEKUNGAN SUMATERA SELATAN Fenry Simorangkir; Iyan Haryanto; Nurdrajat -; Yusi Firmansyah
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 1 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1402.537 KB) | DOI: 10.24198/bsc geology.v13i1.8390

Abstract

X field is part of the South Sumatra Basin with an area of 359,6 km2. This study is focused to discuss potential hydrocarbons in x fiels. In this study, the discussion will be focused on the Air Benakat Formation. The method used is based on the interpretation of seismic and well. Based on the results of the analysis of the petrophysic of the FS, HA, and BS well shows average Netpay on Air Benakat Formation is 180 m, with a cut-off Volume Shale 0.4, cut-off PHIE 0.12 and cut-off Saturation Water 0.71. As for the Netpay from reservoir itself is average 12.415 m. Geological modeling based on the results obtained by petroleum leads three zone with two reservoir zones. For reservoar A, the most potentially zone is the zone of Lead-1 with with a resources amount of 716.82 MMBO, Zone of Lead-2 with a resources amount of 398.89 MMBO, and zone of Lead-3 with a resources amount of 108.14 MMBO. For resevoar B, the most potentially zone is the zone of Lead-1 with a resources amount of 662.13 MMBO, Lead-2 Zone with a total resources of 368.46 MMBO, and zone of Lead-3 with a total resources of 99.89 MMBO.
Mapping Channel Distribution Based on Seismic and Well Data in West Natuna Alma Ikramina; Iyan Haryanto; . Abdurrokhim
Bulletin of Scientific Contribution: GEOLOGY Vol 19, No 2 (2021): Bulletins of Scientific Contribution : Geology
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc geology.v19i2.34719

Abstract

Natuna is one of the regions in Indonesia that has potential in hydrocarbon with a siliciclastic reservoir which is generally characterized by a fluvial and deltaic environment. For this reason, it is important to identify the distribution channel to find out the distribution of the reservoir. This study using the well-logging and 3D seismic data interpretation methods. With the correlation between the horizon slicing method on seimsic data, lithology identification in well data, and also using seismic attributes, we can determine the distribution of reservoirs. In reseach area, reservoir distribution analysis in Arang and Muda Formation. Where Arang Formation identified 4 reservoirs, which 3 of them have oil content, with effective porosity value of 10-30%. Meanwhile, in Muda Formation, there are 3 reservoirs with effective porosity of Muda Formation is 20-27%
PENELITIAN STRUKTUR GEOLOGI DAN KAITANNYA TERHADAP KEMUNGKINAN ADANYA POTENSI EMAS PRIMER DAERAH GUNUNG ASTANA BOGOR, JAWA BARAT Iyan Haryanto
Bulletin of Scientific Contribution: GEOLOGY Vol 3, No 2 (2005): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc geology.v3i2.7454

Abstract

The study area that is mainly hilly, contains volcanics matters such as breccias, tufaceous lapili, tufand lava. Several outcrops are followed by mineralization where quartz vein also occurred.Developed structures in the study area are quite complex, where NE – SW faults pairing with NW –SE faults. Mineralization zones and quartz vein are found on faults segments, these evidence shows thatthere are primary Au prospect at the subsurface in the study area.
PENGARUH SESAR CIMANDIRI TERHADAP MORFOLOGI DAERAH PADALARANG Iyan Haryanto; Edy Sunardi
Bulletin of Scientific Contribution: GEOLOGY Vol 12, No 2 (2014): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc geology.v12i2.8367

Abstract

Cimandiri Fault is a regional fault that stretching from Pelabuhanratu (Sukabumi) to end up in the complex area of Mt. Tangkubanprahu – Mt. Burangrang (Subang - Northward of Bandung). Regional fault has been widely studied, but there are differences of opinion, especially regarding the type of shift.This study aimed to examine all aspects relating to Cimandiri Fault, especially along the segment Tagokapu-Cibogo (Padalarang-Citatah), so that can be known about the type of the fault. Steps and methods of research, among others, to analyze the landscape through satelite image, make observations, descriptions and measurement of geological structure elements, data processing by program using "dip" and "Paleostress" softwares. Cimandiri fault lines along the segment Tagokapu-Cibogo, can be recognized from various aspects, among others, from the aspect of geomorphology characterized by differences in the shape and elevation of the hills; from stratigraphical aspects there are contact between rock formations of different ages; from fold structure aspects there are found standing upright rock layers; and from the aspect of fault outcrop, there were indications that the fault is generally associated with horizontal fault. From the results of the analysis showed that the lineament of Cimandiri Fault along Tagokapu-Cibogo segment, controlled by a reverse fault and normal faults that formed in different tectonic period.
DEBIT ALIRAN (WATER YIELD) SUB-DAS CIGUMENTONG DAN CIMULU SUB-DAS CITARIK BAGIAN PALING HULU Edi Tri Haryanto; Andi Agus Nur; Iyan Haryanto; Yuyun Yuniardi
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 2 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.577 KB) | DOI: 10.24198/bsc geology.v13i2.8397

Abstract

Cigumentong and Cimulu sub-watersheds are growing at vokanik denudasional landform with geological formations of undeferienciated old volcanic product consists of tuff , breccia and lava of the uppermost of Citarik Sub-Catchment . Based on the order system according to Strahlaar both river is a river -order 4 , with the land cover of relatively dense forest vegetation with an area of 552 Ha respectively and 606 Ha . This study aims to investigate the flow discharge characteristics of the two rivers by measuring daily and daily rainfall during the period 20 December 2014 through to March 2015, or for 71 days . The research result is fluctuations in flow discharge rate between the River Cigumentong and Cimulu tend to be similar . Inlfiltration coefficient of Cimulu sub-watersheed was slightly larger (0.54)than that was Cigumentong sub-watersheed (0.53), with the infiltration thickness of 695 mm for Cimulu and 577 mm for Cigumentong. Runoff coefficient Cimulu sub-watersheed is larger (0.44) than Cigumentong (0.37) .
IDENTIFIKASI STRUKTUR GEOLOGI BERDASARKAN ASPEK MORFOLOGI, STRATIGRAFI, POLA JURUS LAPISAN BATUAN DAN SEBARAN BATUAN : STUDI KASUS DAERAH BANTARUJEG-MAJALENGKA, PROVINSI JAWA BARAT Iyan Haryanto; Nurdradjat -; Irdanto Saputra
Bulletin of Scientific Contribution: GEOLOGY Vol 13, No 2 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (863.939 KB) | DOI: 10.24198/bsc geology.v13i2.8400

Abstract

The study is located at Bantarujeg, Majalengka, West Java where tertiary sedimentary rocks are exposed. The depositional environment is concluded as shallow marine – deep water. In a present day, the sedimentary rocks are deformed and create a steep hills extending from west – east of the study area as a result of fault and folding processes. In some of the study area, deformed sedimentary rocks feature is resulted by sedimentation processes called slump. Various deformation model and interpretation on study area is often confuse geological history interpretation of study area. The main cause of folding in the study area may be adjacent to sedmentation processes or tectonic processes.The study is based on structural interpretation on topography map, drainage pattern, and digital elevation model analysis (DEM). Field observation is conducted to measure structural feature and identify sedimentology and morphology aspects.Structural geology Bantarujeg is expressed by steep hills morphology extending from west – east. The morphology is controlled by rock strike with rock dip measured from 30o-60o. In the middle of the depression (valley), layer dip generally above 40o shows the area is a result of compression and related to reverse fault. Local fold and drag fold is also founded on the reverse fault zone and in other location slump structure and local drag fold also identified. In general, the study area is a result of compression tectonic regime creating fold and thrust belt followed by tear fault deformation.
Morphotectonic Characteristics Of Cisadane Watersshed Based On Satellite Images Analysis Sonny Mawardi; Emi Sukiyah; Iyan Haryanto
Jurnal Geologi dan Sumberdaya Mineral Vol. 20 No. 3 (2019): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v20i3.464

Abstract

Cisadane Watershed is one of the most rapidly growing areas and infrastructure development, and has developed as a residential, industrial, administrative centers and other economic activities. The purpose of this paper is to use remote sensing satellite imageries to identify the morphotectonic characteristics of the Cisadane watershed both qualitatively and quantitatively. Processing stereomodel, stereoplotting and stereocompilation on TerraSAR-X Digital Surface Model (DSM) and SPOT 6 imageries, produced the  Digital Terrain Model (DTM) image, which has not been affected by land cover. Fusion of the DTM  and Landsat 8 RGB 567+8 images  is used to interpret the distribution of lithology, geomorphological units, and lineaments, which are an indication of geological structures. The morphotectonic characteristics of sub-watersheds qualitatively was carried out a bifurcation ratio calculation (Rb) which indicates tectonic deformation. Based on the analysis of satellite images both qualitatively and quantitatively, the morphotectonic characteristics of the upstream, middle and downstream Cisadane Watershed have been deformed.Keywords : satellite images, morphotectonic, DSM, DTM, Cisadane Watershed.
Cekungan Kuarter Antar Pegunungan di Jawa Barat Edy Sunardi,; Iyan Haryanto; Andi Agus Nur; abdurokhim; Nisa Nurul Ilmi
Jurnal Geologi dan Sumberdaya Mineral Vol. 24 No. 3 (2023): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v24i3.751

Abstract

Geologi suatu daerah sebagai suatu model dapat mengalami perubahan secara konstruktif (refining), sejalan dengan munculnya gagasan-gagasan baru dalam sedimentasi, stratigrafi, tektonik dan evolusi cekungan, serta vulkanisme, didukung oleh berbagai jenis data baru yang lebih banyak dan lebih akurat. Suatu kolase elemen-elemen dasar yang disusun secara lokal dan dihubungkan satu dengan yang lain menurut kaidah yang dianut akan membentuk pengertian baru. Penelitian ini merupakan hasil pengamatan geologi lapangan ditunjang dengan pekerjaan studio, khususnya dalam interpretasi struktur geologi. Klasifikasi genetik terbentuknya cekungan Kuarter, selanjutnya dibangun dan mengacu juga kepada kontrol struktur terhadap penyebaran batuan vulkanik Kuarter dan gunugapi aktif di Jawa Barat. Atas dasar analisis, pembentukan cekungan pada area studi merupakan cekungan antar pegunungan di Jawa Barat, secara umum dapat dikelompokan menjadi: Anticlinal collapse basin, Half Grabben Basin, Flexure Subsidence Basin, Pull Apart Basin dan Paleovolcano Crater Kata kunci: Jawa Barat, Pembentukan cekungan, Tektonik, volkanisme
Co-Authors Abdurokhim Abdurokhim Abdurrokhim ⠀ Alma Ikramina Andi Agus Nur Edi Tri Haryanto Edy Sunardi Edy Sunardi, Emi Sukiyah Fenry Simorangkir Irdanto Saputra Nisa Nurul Ilmi Nurdradjat - Nurdrajat Nurdrajat Sonny Mawardi Yusi Firmansyah Yuyun Yuniardi