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All Journal Jurnal Edukasi dan Penelitian Informatika (JEPIN) JGE (Jurnal Geofisika Eksplorasi) Journal of Geoscience, Engineering, Environment, and Technology JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) Journal of Science and Applicative Technology Buletin Sumber Daya Geologi Jurnal Geofisika Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Handoyo Handoyo
Geophysical Engineering, Institut Teknologi Sumatera, South Lampung, Indonesia
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Physics

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The Multichannel Analysis of Surface Waves Method (MASW): Brief Theory and Application to Near Fault Zone Identification Handoyo, Handoyo
Jurnal Lingkungan dan Bencana Geologi Vol 15, No 1 (2024)
Publisher : Badan Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34126/jlbg.v15i1.493

Abstract

The characterisation of near subsurface geological features such as sedimentary layer thickness distribution andnear-surface geological structures are interest and continues to be studied to understand the complete conditions in thesubsurface. One geophysical method that can be used for characterising shallow targets is the Multichannel Analysisof Surface Waves (MASW) method. The MASW method is a method that utilises the dispersive nature of surface wavesto model the shear wave velocity distribution in each layer vertically (Vs-depth model). The MASW method consists ofthree stages: acquisition, processing, and inversion. In this paper, we describe the general concept/theory of MASWand its application to characterise a shallow fault zone at a target depth of about 150 m in the active zone, IberianPeninsula, Spain. This study is supported by trenches data as a marker for the fault plane in the study area. Basedon the study and results obtained in this paper, it is hoped that it can provide a brief theory regarding the MASWmethod for the benefit of learning and advancing science and technology in Indonesia. Moreover, it is also hopedthat the application of the MASW method in Indonesia will continue to develop and can be used with wider interests.
A Kontribusi Geofisika dalam Eksplorasi Hidrogen Geologis (Geologic Hydrogen) di Bawah Permukaan Handoyo, Handoyo
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 1 (2025): Februari
Publisher : Mataram University

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Abstract

Transisi energi ke sumber energi yang lebih ramah lingkungan sangat penting untuk mengurangi emisi karbon di atmosfer bumi. Di antara jenis energi baru yang ramah lingkungan, terdapat peningkatan kesadaran akan potensi hidrogen (H2) geologis yang terbentuk secara alami sebagai sumber energi primer yang dapat dimasukkan ke dalam pasokan energi pada masa depan. Geofisika diperkirakan akan memainkan peran penting dalam upaya tersebut. Ada dua jenis H2 geologis yang berbeda yaitu H2 alami (gold H2) yang secara konsep terakumulasi secara alami di reservoir dalam kondisi geologi tertentu. Selanjutnya adalah H2 terstimulasi (orange H2) yang diproduksi secara artifisial dari batuan sumber melalui stimulasi kimia dan fisika. Pada paper ini, kami akan membahas peranan geofisika dalam eksplorasi H2 geologis sebagai perbandingan yang kontras dengan skenario H2 biru dan hijau (blue and green H2). Kemudian, akan dibahas pentingnya metode geofisika pada eksplorasi H2 alami dan H2 terstimulasi baik dalam hal teknik eksplorasi dan pemantauan (monitoring). Dengan memberdayakan berbagai instrumen dan metode-metode geofisika terintegrasi dalam eksplorasi dan produksi hidrokarbon yang sudah ada, diharapkan dapat diperoleh gambaran mengenai peranan geofisika dalam eksplorasi H2 secara efektif. Secara umum, strategi eksplorasi H2 akan melibatkan peralihan sudut pandang dari pendekatan yang berpusat pada reservoir ke pendekatan yang berpusat pada batuan sumber. Terakhir, kami yakin bahwa metode geofisika yang melibatkan integrasi multi-geofisika, akuisisi data yang efisien, dan pembelajaran mesin dalam H2 geologis berpotensi memberikan pemahaman baru dan peluang signifikan untuk melanjutkan penelitian dalam beberapa mendatang.
KARAKTERISASI BATUAN INDUK HIDROKARBON DAN RESERVOAR NONKONVENSIONAL DI CEKUNGAN JAWA TIMUR BAGIAN UTARA: CHARACTERIZATION OF HYDROCARBON SOURCE ROCKS AND UNCONVENTIONAL RESERVOIR IN THE NORTHERN EAST JAVA BASIN Airlangga, Feby; Handoyo, Handoyo; Irawati, Selvi Misnia; Wibowo, Andy Setyo
Buletin Sumber Daya Geologi Vol 19 No 3 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i3.435

Abstract

The northern East Java Basin is one of the hydrocarbon producing basins in Indonesia with a thick source rock layer and is interesting to study as a potential unconventional reservoir in the future. In this research, integration of well data analysis and seismic inversion is used to identify the characteristics of the source rock in the studied area. Well data analysis can provide lithological information from the source rocks bearing formations, namely shale of the Prupuh Formation, dominant shale of the Kranji Formation, and limestone of the Ngimbang Formation. In addition, log data can provide information on predicting Brittleness Index (BI) and Total Organic Carbon (TOC) values ​​in the target zone. The linear regression is used to propagate BI, porosity, and TOC on the seismic data. To assist the process of distributing TOC and BI values ​​on seismic parameters, Acoustic Impedance (AI) inversion was carried out by using a model based hard constraint method to predict the AI ​​distribution. The results of this study show that the target zone is a potential zone with a medium to potential category with a TOC distribution of 1.5%-2.2%, BI of 0.2-0.46, and porosity of 0.03-0.15. Moreover, seismic inversion data also helps the distribution of petrophysical parameters in good lateral conditions following the distribution of shale source rock horizons.
Co-Authors . Fatkhan Agus Laesanpura Agus Laesanpura, M.S Airlangga, Feby Benyamin Elilaski Nababan Egie Wijaksono Eliza Veronica Zanetta Erlangga, Mokhammad Puput F. D.E. Latief Fatkhan Fatkhan Fatkhan Fatkhan Fatkhan Fatkhan Fourier D. E. Latief H. Y. Hutami Harnanti Yogaputri Hutami Irawati, Selvi Misnia M Rizki Sudarsana Nahdah Novia Nahdah Novia Nungga Saputra Paul Young Putri, Intan Andriani R. Rizki Restu Almiati Reza Rizki Wibowo, Andy Setyo