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All Journal Indonesian Journal of Geography ILMU KELAUTAN: Indonesian Journal of Marine Sciences IJOG : Indonesian Journal on Geoscience Journal of Tropical Biodiversity and Biotechnology Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Fisika Indonesia Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal of Applied Geology Berita Sedimentologi Geosfera: Jurnal Penelitian Geografi Jurnal Ilmiah Geologi pangea Scientific Contributions Oil and Gas

Sugeng Sapto Surjono

Departemen Teknik Geologi, Fakultas Teknik, Universitas Gadjah Mada

Author-ID : 1716968

Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Physics Social Sciences

Published : 26 Documents Claim Missing Document

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Erosion and its Implication on Hydrocarbon Generation in ‘ARD’ Block, Akimeugah Basin,West Papua Sugeng Sapto Surjono; Yohanes Ardhito Triyogo Varianto; Salahuddin Salahuddin
Journal of Applied Geology Vol 4, No 2 (2019)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Akimeugah Basin in the western part of Aru Trough is included as a Paleozoic Basin which is one of the potential hydrocarbon-producing basins in Eastern Indonesia. Tectonic evolution in Akimeugah Basin during Cambrian to present has produced a very significant erosion that affected the hydrocarbon generation process. ‘ARD’ Block study uses three exploratory well data including well report and 26 lines of 2D seismic data with a total length of 5,812.55 kilometers and the distance between seismic lines ranging from 10 to 15 kilometers. Seismic data is processed with IHS Kingdom software for tectonostratigraphy analysis, while calculation and erosion analysis are performed by combining well data consisting of sonic, vitrinite reflectance and seismic. To get a burial history model and generation & expulsion period, this study utilizes Petromod software. Five phases of the tectonic evolution led to four times of erosional period with a sediment thickness of 290 – 3,370 feet were loss. The erosion of the sedimentary rocks causes the maturation process delayed more than 200 million years. Burial history in the study area with the erosion absence assumption results a hydrocarbon generation starting from around 210 million years ago. Meanwhile, by considering the loss of eroded sedimentary rocks during four tectonic phases, hydrocarbon generation time just occurred 3.1 million years ago.

Dominant Weathering Profile Assessment of Kebo-Butak Volcanic Rocks in Gedangsari and Ngawen area, Yogyakarta, Indonesia Fathan Hanifi Mada Mahendra; I Gde Budi Indrawan; sugeng sapto surjono
Journal of Applied Geology Vol 6, No 1 (2021)
Publisher : Geological Engineering Department Universitas Gadjah Mada

The Gedangsari and Ngawen area is predominantly composed of volcanic and volcaniclastic sequencesdistributed east – west direction of the northern parts of Southern Mountain. The massive tectonism as well as tropical climatein this region have been producing weathering profiles in varying thickness which inevitably affects thegeotechnical properties. This study aims to assess the dominant weathering profileof the lower part of Kebo-Butak Formation as well as evaluating the distribution of the discontinuity. In order to know the dominant weathering profile and discontinuity evaluation, this study utilizes a total of 26 panels from five stations investigated through a geotechnical data acquisition including the geological condition, weathering zones, joint distribution, and discontinuity characteristics. The result shows four types of dominant weathering profiles in lower part of Kebo-Butak Formation called as dominant weathering profile A, B, C, and D. Profile A, B, C consisted of a relatively identical weathering degree pattern of fresh, slightly, moderately, completely weathered zone with the variation of thicknesses. However, the weathering degree in profile D reached the residual soil degree controlled by more intensive joints. The fine-grained sedimentary rocks also tends to have smaller spacing, shorter persistence, and higher weathering degree of discontinuities as compared to coarse-grained sedimentary rocks.

Model Reservoir Formasi Woniwogi Blok ”FRD”, Cekungan Akimeugah Menggunakan Metode Seismik Multiatribut Fitri Rusmala Dewi; Sugeng Sapto Surjono; Djoko Wintolo
Jurnal Fisika Indonesia Vol 22, No 3 (2018)
Publisher : Department of Physics Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfi.v22i3.43052

Cekungan Akimeugah merupakan salah satu cekungan yang berpotensi adanya kandungan minyak dan gas bumi. Daerah penelitian, Blok ”FRD” berada di lepas pantai sebelah utara Laut Arafura. Top Formasi Woniwogi menjadi batas atas penelitian dan Top Formasi Kopai menjadi batas bawah penelitian. Tujuan dari penelitian ini untuk mengkarakterisasi reservoir dan menentukan zona prospek pada daerah penelitian. Penelitian ini menggunakan data 3 sumur (FRD1, FRD2 dan FRD3) dan data seismik 26 lintasan 2D PSTM untuk pengolahan seismik multiatribut. Metode ini digunakan untuk memprediksi beberapa properti fisik dari bumi dengan menggunakan lebih dari satu atribut. Pengolahan data diawali dengan identifikasi well seismic tie, picking horizon dan picking patahan, membuat peta bawah permukaan, inversi seismik dan multiatrbut. Software yang digunakan yaitu Hampson Russel 8 dan Petrel 2015. Dari hasil inversi dan multiatribut, Formasi Woniwogi sumur FRD1 ini memiliki nilai impedansi akustik rendah 20.000 − 26.500 ((ft/s)/(g/cc)), nilai gamma ray rendah sampai sedang 70 − 150 API, dan nilai porositas efektif tinggi 6 − 8%. Dari hasil tersebut, sumur FRD1 pada Formasi Woniwogi dapat diinterpretasikan sebagai potensial reservoir hidrokarbon.

Indonesian Stratigraphic Nomenclature revision: The first progress report Herman Darman; Dwandari Ralanarko; Sugeng Sapto Surjono
Berita Sedimentologi Vol 47, No 2 (2021)
Publisher : Ikatan Ahli Geologi Indonesia

A team was formed by the Indonesian Association of Geologist (IAGI) in early 2021 to revisit the Indonesian Stratigraphic Nomenclature which was issued in 1996. After 25 years many experts find that the document needs to be updated. The team is a mix of geologists with both academic and industry background. Several representatives from the Geological Agency who are involved in the Stratigraphic Lexicon document were also invited in the discussion. The team meeting was set on a regular basis to evaluate the existing nomenclature and look on areas for improvement. In each meeting the team will discuss a certain section of the nomenclature document. A three years work programme was set and reported on this article. In the first year the team will investigate areas for improvement, followed by revising necessary content in the second year. Implementation and promoting the nomenclature are planned for the third year.This short communication aims to engage a wider community on the process in revisiting the Indonesian Stratigraphic Nomenclature. Several examples of discussion topics in the meetings were included in this article. Readers will see potential areas for improvement and the team are open for suggestions.

Petrophysical Study and Rock Type Determination of Siliciclastic Reservoir: Case Study Sand of Bekasap Formation, AF Field, Central Sumatra Basin, Indonesia Dwi Charisah Andriyani; Sarju Winardi; Sugeng Sapto Surjono
Journal of Applied Geology Vol 7, No 2 (2022)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jag.83471

An integrated subsurface study has been performed for a large and mature field at the Bekasap Formation in Central Sumatra Basin. The Bekasap Formation sand represents an undeveloped reservoir because of its heterogeneity. There are five sand reservoirs (BK1, BK2, BK3, BK4, and BK5) from Bekasap Formation, which each zone or layer bounded by a flooding surface. Each sand reservoir has particular characterization based on petrophysical properties that represent geological process. The petrophysical properties consist of shale volume, porosity, and water saturation obtained by wireline log calculation. This study uses conventional core data to validate the log calculation to achieve an accurate interpretation. Bekasap reservoir is a sandstone reservoir deposited in an estuarine with tide-dominated. Formation evaluation was done to determine the interest zone by petrophysical properties. The result well-log calculation and reservoir cut-offs showed the thickest reservoir in the BK 3 with the best average values of petrophysical properties with an average shale volume 0.32; porosity of 0.245. Otherwise, in rock type determination, four lithofacies are divided in the reservoir based on flow units. The sample RT 1 and RT2 provided the best reservoir zones with HFU1 and HFU2. The RT 3 and RT 4 dominated in HFU3 and HFU4 had the lowest potential zones of reservoir. The final findings showed a good correlation between sedimentologic analysis and petrophysical properties in the rock type determination. As a result, the best reservoir quality development is controlled by the depositional environment (texture and structure) rather than the diagenetic process in this reservoir. It is proven by petrophysical properties in BK1, and BK2 is coastal barrier sand (tidal sand bar) has more clean sand rather than in BK3 and BK4 deposited in the offshore bar.

3D ROCKTYPE DAN FZI MODELING RESERVOAR KARBONAT, FORMASI BERAI, CEKUNGAN BARITO, PROVINSI KALIMANTAN TIMUR Juni Prasetiya; Sugeng Sapto Surjono; Jarot Setyowiyoto
Jurnal Ilmiah Geologi PANGEA Vol 5, No 2 (2018): 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.v5i2.9669

Distribusi tipe batuan karbonat Formasi Berai di cekungan Barito telah dinilai menggunakan kombinasi data log sumur, analisis inti dan inversi seismik. Pemodelan objek 3D dari distribusi fasies menunjukkan tiga unit utama sub-karbonat yang terbentuk dalam kronostratigrafi yang berbeda di dalam geometri karbonat pada formasi Berai yang disebut sebagai Platform A, Platform B dan Platform C. Sementara itu, klasifikasi rocktype telah dilakukan dengan menggunakan rentang yang berbeda dilihat dari parameter nilai petrofisika (RHOB, NPHI dan GR) dari enam objek jenis batuan yang berbeda menurut klasifikasi Dunham (1962). Hasil analisis Rock Physics menunjukkan cut-off petrofisik dari masing-masing jenis batuan yang terdapat pada formasi Berai yang memiliki kesamaan dengan kondisi tipe batuan sebenarnya yang diperoleh dari deskripsi data batuan inti (core). Hanya ada empat jenis objek batuan yang terklasifikasi dari hasil eksperimen tersebut. Berai karbonat terdiri dari Packstone yang sangat dominan dalam volume, berturut-turut diikuti oleh Grainstone, Mudstone dan Wackstone. Dengan kata lain, pendekatan petrofisika dapat digunakan untuk mengkategorikan variasi jenis batuan lapangan karbonatDeskripsi prospek gas di dalam reservoir Berai karbonat yang dihasilkan dari penelitian ini tercermin dalam nilai FZI terbesar, resistivitas MSFL rendah dan nilai saturasi air terkecil (Sw). Model estimasi co-kriging 3D menunjukkan distribusi gas berdasarkan tiga parameter di atas mirip dengan profil uji DST. gas play yangterbaik dan distribusi gas terbesar terperangkap di dalam reservoir karbonat Platform A sebagai produk packstone (PRT kelas 3) di mana terdeposit pada transisi reff flat dan lingkungan lagoon. Gas-gas lain terletak dekat dengan asosiasi Adang Fault dan akumulasi hidrokarbon di area prospek ini juga dapat berasal dari migrasi ke atas di Formasi Tanjung ke Lapisan karbonat Platform A

A Combined Petrographic-Geochemical Provenance and Tectonic Setting Study of Palaeozoic Rocks, in East Johor Basin, Peninsular Malaysia Sugeng Sapto Surjono; Mohd. Shafeea Leman; Kamal Roslan Mohamed; Che Aziz Ali
Indonesian Journal on Geoscience Vol. 8 No. 1 (2021)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.8.1.11-24

DOI: 10.17014/ijog.8.1.11-24Several greywacke sandstones considered as Paleozoic rocks are found in three different formations, i.e. the Dohol, Linggiu, and Tanjung Leman Formations within the Palaeozoic East Johor Basin. The compositions of twenty-nine sandstone samples were identified using petrographical and geochemical methods to determine the provenance of sandstones as well as the tectonic setting of pre-and syn-sedimentation. Seven samples of them were examined using point counting method to obtain the mineralogical compositions. This petrographical point counting was done by plotting composition percentages to QFL and QmFLt triangular diagrams, The results showed a magmatic arc for Dohol Formation, a change from a magmatic to a recycled orogen for Linggiu Formation, and a recycled orogen for Tanjung Leman Formation. The recycled orogen tectonic setting of Linggiu and Tanjung Leman may have come from the underlying metamorphic and sedimentary rocks of Mersing and Murau Formations. Meanwhile, twenty-two samples were examined using a geochemical method by utilizing the ratio of K2O/Na2O and SiO2. The samples suggest a tectonic setting from both passive continental margin (PM) and active continental margin (ACM). Based on these findings, it is interpreted that the sedimentary rocks in East Johor were deposited in a subduction-related basin, such as fore-arc, magmatic arc, and back-arc.

Heating Experiments on Benthic Foraminifera Ammonia sp. to Assess the Suitability of Amino Acid-Based Dating Hidayat, Rahmadi; Barianto, Didit Hadi; Surjono, Sugeng Sapto; Ali, Che Aziz
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 3 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.3.293-300

Sub-milligram fossil biominerals, mainly benthic foraminifera, have been recently used to estimate the age of sediments determined from amino acid dating due to the minimum sample size requirement for reverse-phase high-performance liquid chromatography (RP-HPLC). This includes the collection of Ammonia sp., known as a key species occupying restricted lagoonal environments. However, an experiment has not been conducted to understand the racemization kinetics in order to examine the reliability of this species for amino acid racemization (AAR) geochronology. This research aims to determine the trend of the extent of racemization and the amino acid concentration, leading to the recommendation of Ammonia sp. shells as a dating specimen. The results exhibit a predictable pattern, demonstrating a consistently increasing extent of racemization after oven heating for up to 168 h without any indication of reversal pattern. The racemization rate differs from four selected amino acids reported in this study, where aspartic acid is the fastest, followed by glutamic acid, valine and isoleucine epimerization. Moreover, the consistent proportion of total amino acid and the decline of amino acid concentrations can be clearly observed following exponential decay. Therefore, this foraminifer can be used as an alternative specimen to establish amino acid-based geochronology, particularly in the depositional environment lacking other microfossils. Due to its confined habitat, amino acid-based dating of Ammonia sp. is considered applicable to understand the small environmental changes related to marginal marine successions.

Lithofacies, Facies Association, and Depositional Environment of 34-1, 33-6, and 33-4 Sandstone, Wida Field, Gita Member, Talang Akar Formation, Asri Basin, Offshore Southeast Sumatra Saputra, Adi Danu; Surjono, Sugeng Sapto; Winardi, Sarju; Setyadi, Abdul Latif; Ralanarko, Dwandari
Jurnal Ilmiah Geologi PANGEA Vol 11, No 1 (2024): 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.v11i1.12011

Three Gita Member reservoirs 34-1, 33-6, and 33-4 produce from solution gas drive with rapid pressure decline and low recovery factor. After successful oil production enhancements through waterflooding injections prompt the need for a reservoir model in further field development. Before such models were built reservoir characterization was carried out to determine facies and depositional environment for facies modeling. The study integrated core, wireline log, petrophysical logs, seismic attribute, petrography, etc. Next, well correlation was carried out to distribute stratigraphic markers. Finally, seismic attribute and well correlation were integrated to construct pie chart and depositional environment map. External geometry from seismic attribute revealed distributary channel with point bars which act as reservoir and consist of medium-fine grained planar tabular cross bedding sandstone, mud drapes sandstone, and ripple-wavy lamination sandstone. The wireline log showed fining-upward pattern and core displayed abundant channel rip up clasts, sharp or erosional contact with underlying lithology. Frequent mud drapes found within channel sandstone indicate tidal influence in proximity to marine environment probably in lower delta plain. Channels are trending west-east (34-1) and north-south (33-6 and 33-4). Other facies associations are shallow marine, swamp, interdistributary bay, and tidally influenced interdistributary bay. Shallow marine FA consists of skeletal limestone (Lm), calcareous mudstone, and calcareous sandstone (Sc). Rootlet mudstone (Fb) and interlamination of carbonaceous mudstone with very fine-grain sandstone (Fl) formed interdistributary bay FA. Swamp FA consists of coal and coaly mudstone. Tidally influenced interdistributary bay FA consists of carbonaceous laminated mudstone high in carbon (Flb), intensely bioturbated carbonaceous mudstone (Flb), very finely laminated mudstone-very fine grain sandstone (Fl) and black fissile shale (Fm).

Bioerosion in the Late Eocene Discocyclina discus sowerbyi (Nuttall, 1926) in Bayat Area, Indonesia: Implications for Paleoecology Rahmawati, Diana; Surjono, Sugeng Sapto; Barianto, Didit Hadi; Rahardjo, Wartono
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 4 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.93779

This paper discusses about the bioerosion discovered in carbonate tests of Discocyclina discus sowerbyi (Nuttall, 1926), a large benthic foraminifera from the Priabonian (Late Eocene). The study material was sampled from the Gamping beds in the Wungkal-Gamping Formation in Bayat, Indonesia. We discovered four bioerosional trace fossils from three different ichnogenera demonstrate bioerosion from the surface test analysis. Oichnus simplex and Oichnus paraboloides are ichnogenus Oichnus diagnostic drilling holes that are often found on the surface. Caulostrepsis isp. exhibits the presence of uncomplicated U-shaped borings. The observed formation of drill holes can be mostly linked to the predatory behaviour of gastropods, while other trace fossils are predominantly associated with the burrowing activities of worms. The occurrence of well-preserved individual tests exhibiting no signs of bioerosion is infrequently observed in D. discus sowerbyi. In addition, bioerosion occurs more frequently in the microspheric generation than in the megalospheric generation. This research also demonstrates for the first time in Indonesia that parrotfish bite marks have developed on individual tests of the microspheric generation of D. discus sowerbyi. The taphonomic characteristics exhibited by the bioeroded and encrusted D. discus sowerbyi specimens can serve as reliable paleoecological indicators for sediment deposition occurring at an intermediate to high sedimentation regime. The occurrence of larger foraminifera with some bioerosional trace fossil highly proficient at documenting shallow marine sclerobionts.

Co-Authors Ahmad Yufianto Ali, Che Aziz Ali, Che Aziz Ali, Che Aziz Arifianto, Indra Che Aziz Ali Che Aziz Ali Dhea Adisty Pratami Dhea Adisty Pratami Diana Rahmawati Didit Hadi Barianto Djoko Wintolo Donatus Hendra Amijaya Dwandari Ralanarko Dwi Charisah Andriyani Eko Bayu Satria Fathan Hanifi Mada Mahendra Fitri Rusmala Dewi Herman Darman Htwe, Paike Husein, Salahuddin I Gde Budi Indrawan Indra Arifianto Jarot Setyowiyoto Juni Prasetiya Kamal Roslan Mohamed Kamal Roslan Mohamed Kyuro Sasaki Leman, Mohd Shafeea Leman, Mohd. Shafeea Leman, Shafeea Mahendra, Fathan Hanifi Mada Mochammad Indra Novian Mohamed, Kamal Roslan Mohamed, Kamal Roslan Mohd Shafeea Leman Mohd. Shafeea Leman Paike Htwe Rahardjo, Wartono Rahmadi Hidayat Ralanarko, Dwandari Salahuddin Husein Salahuddin Salahuddin Samodra, Saptono Budi Saputra, Adi Danu Sarju Winardi Sarju Winardi Sasaki, Kyuro Setyadi, Abdul Latif Shafeea Leman Suryanto, Wiwit Triyogo Varianto, Yohanes Ardhito Widi Atmoko Widi Atmoko Wiwit Suryanto Yohanes Ardhito Triyogo Varianto Yufianto, Ahmad

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