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All Journal IJOG : Indonesian Journal on Geoscience Journal of Geoscience, Engineering, Environment, and Technology JURNAL PENDIDIKAN TAMBUSAI Indonesian Journal on Geoscience Community Empowerment Indonesian Journal on Geoscience Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Jurnal AKAL: Abdimas dan Kearifan Lokal Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Geoscience Engineering and Energy (JOGEE) Journal of Geosciences and Applied Geology Scientific Contributions Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Yarra Sutadiwiria
Geology Department, Faculty Of Earth Technology And Energy, Universitas Trisakti, Jln. Kyai Tapa No. 1, Jakarta 11440,
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A Regression Analysis Approach to Van Everdingen-Hurst Dimensionless Water Influx Variables for Infinite and Finite Aquifers Muhammad Taufiq Fathaddin; Yarra Sutadiwiria; Taufan Marhaendrajana; Sonny Irawan; Onnie Ridaliani Prapansya; Asri Nugrahanti
Scientific Contributions Oil and Gas Vol 47 No 1 (2024)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.47.1.1612

Abstract

Water influx calculations have relied on accurate values of the Van Everdingen-Hurst WeD dimensionless variables. For programming and hand calculators, equations are needed to determine WeD. Previous models provide equations for WeD calculations for infinite aquifer cases. This paper presents two sets of regression equations that are simple to apply to obtain accurate values of WeD for either infinite or finite aquifer cases. The proposed equations have good agreement with the Van Everdingen-Hurst method with an average difference of 0.77% and 1.18% for the cases of infinite aquifer and finite aquifer, respectively
The Influence of Side-Slip Velocity on Subsurface Displacement Imam Setiaji Ronoatmojo; Muhammad Burhannudinnur; Yarra Sutadiwiria; Dewi Syavitri
Scientific Contributions Oil and Gas Vol 47 No 2 (2024)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.47.2.1620

Abstract

This research aimed to determine the influence of side-slip velocity on subsurface displacement during seismic data acquisition. Anisotropy constants were used to determine the depth migration process before stack, which showed inadequate results after data validation. Therefore, the forward modeling of a medium, which comprised anisotropy constants of normal and offset raytracing was conducted to address this problem. The configuration of source to receiver were orthogonal and slant. The results showed that the migration process failed to resolve the geological structures of the position shifting. The configuration of source to receiver were orthogonal and slant. The results show the better continuity of slant and the influence of complex geological structures controls the position shifting, which could not be resolved by the migration process. It could be seen from the random distribution of the normal shift of group velocity and phase velocity, as well as the CDP – CRP shift. It produced wave azimuth rotation in a discontinuity plane, such as fault and anticline ridge. This azimuth rotation was strongly suspected to cause inaccurate anisotropy constants implementation in pre-stack depth migration process
The Influence of Fluid Dynamics on Physical Uncertainties of Hydrocarbon Reservoir Imam Setiaji Ronoatmojo; Muhammad Burhannudinnur; Yarra Sutadiwiria; Dewi Syavitri; Grace Stephani
Scientific Contributions Oil and Gas Vol 48 No 2 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i2.1761

Abstract

Uncertainty is often present in the relationship between physical property variables and the complexity increases, when mechanical properties are included. The problems becomes more interesting in cases, where fluid dynamics act as the primary contributing factor. Pore pressure changes is the main actor of every uncertainty of physical properties. Therefore, this study aimed to examine the influence of fluid dynamics on physical uncertainties of hydrocarbon reservoir. To achieve this objective, well data from production and enhanced oil recovery (EOR) operations between 1994 to 2007 were entangled. Specifically, 3D seismic data was incorporated to distribute physical and mechanical properties after well periodization. In this study, the impact of pore pressure changes on minimum horizontal stress from 1994-2017 was also examined. The results showed that changes in porosity were not significant, but variations in bulk modulus and Poisson's ratio remained observable. Furthermore, tensors field were not dominated by vertical stress, instead of horizontal stresses. Changes in pore pressure apparently had a significant impact on minimum horizontal stress. The increase of  minimum horizontal stress reached approximately one third of pore pressure change. Consequently, the stress regime transitioned from the strike-slip fault in 1994 to thrust fault in 2017, emphasizing a significant increase in the influence of horizontal stress. While water injection and oil production did not lead to significant changes in physical properties, the effects were evident in the variations of Poisson's ratio.
Studi Karakteristik Senyawa Hidrokarbon dengan Metode Ekstraksi Geokimia Biomarker pada Cekungan Jawa Barat Utara Asy’ari Alfin Giovany; Yarra Sutadiwiria; Dewi Syavitri; Cahyaningratri Cahyaningratri; Rendy Rendy
Lembaran publikasi minyak dan gas bumi Vol 56 No 3 (2022)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.56.3.1206

Abstract

Geokimia migas merupakan ilmu untuk mengkorelasi keterdapatan suatu senyawakimia dalam kegiatan eksplorasi cekungan berdasarkan karakteristik senyawa kimia dansumber material organik. Komponen senyawa kimia seperti karbohidrat, protein danlipid digunakan untuk mengamati perubahan material organik pada proses sedimentasi.Tumbuhan tingkat tinggi (higher plants) memiliki kelimpahan lignin yang merupakankomponen utama pada jaringan pendukungnya. Geologi regional daerah penelitianmemiliki pola sesar naik yang terjadi pada back-arc basin. Konfigurasi Cekungan JawaBarat utara dipengaruhi oleh block faulting dengan orientasi arah utara - selatan yangmempengaruhi pembentukan cekungan dan pola sedimentasi. Analisis kualitatif digunakanuntuk menginterpretasikan karakteristik senyawa hidrokarbon batuan induk. Sampelcutting diekstraksi dan dianalisis dengan metode kromatografi. Keempat sampel yangberumur Oligosen Akhir – Miosen Tengah dengan interval kedalaman 950m - 950m,2000 - 2005m, 2150m - 2152m, dan 2200m - 2202m didominasi oleh sterana karbonganjil sehingga diinterpretasikan terendapkan di lingkungan darat dengan suplai materialterrigenous dalam kondisi oksik. Sampel pertama dinyatakan jenuh, sampel ketiga dankeempat dinyatakan tidak jenuh berdasarkan persentase senyawa triterpana. Konfigurasiikatan stereoisomer keempat sampel memiliki energi aktif yang berbeda sehubungandengan keterdapatan senyawa hopana dan triterpana yang dapat menentukan sifatgeometris hidrokarbon
Co-Authors Ahmad Helman Hamdani Amalia Andriana, Yoga Andy Livsey Anggarini, Kinanti Sayekti Anjar Kurnia Ramadhan Ardilla Jefri Karista Arista Muhartanto, Arista Asri Nugrahanti Asy’ari Alfin Giovany Asy’ari Alfin Giovany Aufariq Asaria Cifa Bani Nugroho Barona Belladesta Benyamin Benyamin Budi Wijaya Cahaya Rosyidan Cahyaningratri Cahyaningratri Cahyaningratri Cahyaningratri P R Cahyaningratri P.R. Cahyaningratri Prima Riyandhani Cahyaningratri Primadani Desta, Barona Bella Edy Sunardi Eko Bayu Purwasatriya Emelia Sari Filipus Armando Armando Ginting Firman Herdiansyah Gentala Ardikasa Grace Stephani Harin Widiyatni Himmes Fitra Yuda Himmes Fitra Yuda Imam Setiaji Ronoatmojo Imam Setiaji Ronoatmojo Irina Letlora Iyan Haryanto Jambak, Moehammad Ali K.Gunawan, Brahmantyo Lalita A'fin Lalita ‘Afin Mira Meirawaty Mixsindo Korra Herdyanti Moehammad Ali Jambak Mohammad Apriniyadi Mordekhai Mordekhai, Mordekhai Muhammad Burhannudinnur Muhammad Burhannudinnur Muhammad Taufiq Fathaddin, Muhammad Taufiq Muhammad Yusril Ihza Mahendra Triany Mustamina Maulani Novi Triany Onnie Ridaliani Prapansya Onnie Ridaliani, Onnie Pauhesti Pauhesti Pauhesti, Pauhesti Raffiwan, Azka Fadhillah Ramadhani Yaniar Rendy Riezky Kokky Mahendra Rosmalia Dita Nugraheni Rosmalia Ditha Nugraheni Sonny Irawan Sonny Irawan Suci Maharani Suliestyah Suliestyah Suryo Prakoso Syavitri, Dewi Taufan Marhaendrajana, Taufan Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha Yeftamikha, . Yeftamikha, Yeftamikha Yeftamikha, Yeftamikha Yeftamikha, Yeftamikha Yoga Andriana Sendjaja Yulia, Prayang Sunny Yusriani, Anggi Yusuf, Ariq Haykal