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Salatun Said
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science

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ANALISIS FASIES DAN LINGKUNGAN PENGENDAPAN FORMASI TUBAN, JAWA TIMUR UTARA Salatun Said; Windiastuti Windiastuti
Jurnal Ilmiah MTG Vol 2, No 2 (2009)
Publisher : Jurusan Teknik Geologi Fakultas Teknologi Mineral UPN "Veteran" Yogyakarta

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Abstract

The purpose of this study are understanding of the facies type, distribution and its environment. On the basis of the sedimentological characteristic, Tuban Formation can be devided into 5 major facies namely mudstone, wackstone, packstone, grainstone and bindstone.These facies will be described into detail so the each facies that different in characterictic such as texture and composition will have the different name. Environment interpretation from these facies reveals a restricted to open marine-shallow condition. According to reef facies sub-division this environment could be divided into lagoon, back reef, core reef, and fore reef. The presence and distribution of those facies were characterized the fringing reef.
PEMBENTUKAN RESERVOAR DAERAH KARST PEGUNUNGAN SEWU, PEGUNUNGAN SELATAN JAWA Salatun Said
Jurnal Ilmiah MTG Vol 3, No 1 (2010)
Publisher : Jurusan Teknik Geologi Fakultas Teknologi Mineral UPN "Veteran" Yogyakarta

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Pada umumnya topografi karst di daerah Pegunungan Selatan Jawa yang dikenal sebagai Pegunungan Sewu lebih didominasi oleh bentang alam dengan relief positip daripada kenampakan relief negatip seperti sink hole, dolina dan sebagainya. Pembentukan karst Pegunungan Sewu sangat berkait dengan pengaruh curah hujan tinggi daerah beriklim tropis. Pengangkatan batuan karbonat yang terlitifikasi paling tidak telah mempengaruhi permukaan aliran air hujan (run-off) pada wilayah yang luas dan mengontrol perkembangan bentang alam karst yang berrelief positip. Pengangkatan juga akan menyebabkan pembentukan sesar maupun rekahan-rekahan yang lebih jauh akan mengontrol penyebaran bentang alam karst termasuk pula perkembangan porositas sekundernya yang berperan dalam pembentukan reservoir. Berdasarkan pada karakter reservoir daerah telitian dapat dibagi menjadi dua karakter reservoir yaitu reservoir dengan porositas rekahan di selatan dan reservoir dengan porositas matrik di utara.
STUDI POTENSI BATUAN INDUK HIDROKARBON SATUAN BATULEMPUNG FORMASI RAMBATAN DAERAH WANGON SUB-CEKUNGAN BANYUMAS Salatun Said
Jurnal Ilmiah Geologi PANGEA Vol 7, No 2 (2020): Jurnal Ilmiah Geologi PANGEA
Publisher : PROGRAM STUDI TEKNIK GEOLOGI FAKULTAS TEKNOLOGI MINERAL UPN VETERAN YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jigp.v7i2.5219

Abstract

ABSTRACT – Identification of rock intervals that may have as a source rock potential is the important first step inhydrocarbon exploration, therefore it is necessary to conduct research on the sedimentary rock containing organicmatter which with a certain level of heat and time can produce hydrocarbons in the form of oil or gas. The objective ofthis study is to identify lithofacies and hydrocarbon source rock potential of Claystone Unit of the Rambatan Formationin the Wangon Area, Banyumas Sub-Basin. Based on outcrop data showed that Rambatan Formation in the study areapredominantly composed of shale with thin intercalation of sandstones. This formation was deposited in the deepmarine environment by turbidity current. Geochemical analysis in order to determine the potential and quality of sourcerock was performed on four samples (BMS-28, KLP-27, KLP-31 and BMS-120) of Rambatan shale. The analysis ofpotential and source rock quality showed TOC content varied from 1.21% - 23.45% indicating “very good” quality.Rock-Eval analisys show that the shale from sample BMS-28 and BMS-120 are poor as hydrocarbon source rock(S2<2.5 kg / ton), while shale from samples KLP-27 and KLP-31 have good potential as hydrocarbon source rock(S2>5 kg / ton). All samples taken from Rambatan shale showed Ro <0.6 indicate hydrocarbon maturation level has notbeen reached. The low values HI of BMS-28 and BMS-120 (HI<100 mg HC / g TOC), reflects that this rock can beclassified as non-source rock, while samples KLP-27 and KLP-31 have HI values of 152 mg HC/g TOC and 294 mgHC/g TOC will tend to produce gas and oil if it reaches maturation level. The values of HI between 100-300 mgHC/gare generally derived from type III and II kerogen which predominantly contain terrestrial and marine organism.Keywords : source rock, potential, quality, and maturity
Co-Authors Windiastuti Windiastuti