Article Per Year (5 Year)
p-Index From 2020 - 2025
5.161
P-Index
This Author published in this journals
All Journal IJOG : Indonesian Journal on Geoscience Journal of Geoscience, Engineering, Environment, and Technology Jurnal AKAL: Abdimas dan Kearifan Lokal Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Geoscience Engineering and Energy (JOGEE) JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Eksakta Kebumian Scientific Contribution Oil and Gas
Imam Setiaji Ronoatmojo
Program Studi Teknik Geologi, Fakultas Teknologi Kebumian Dan Energi, Universitas Trisakti
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation Other

Published : 33 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 33 Documents
Search

 1   2   3   4 
MENENTUKAN NILAI KELAS BATUAN BERDASARKAN STRUKTUR KEKAR SEBAGAI DASAR EVALUASI GEOLOGI TEKNIK PADA PONDASI SADDLE DAM BENDUNGAN SADAWARNA: DETERMINING ROCK CLASS VALUES BASED ON FRACTURE STRUCTURE AS A BASIS FOR ENGINEERING GEOLOGY EVALUATION ON THE SADDLE DAM FOUNDATION OF THE SADAWARNA DAM Akmalia Putri, Deyana; Ronoatmojo, Imam Setiaji; Pramudito, Harry
Journal of Geoscience Engineering and Energy VOLUME 6, NOMOR 2, AGUSTUS 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/

Abstract

Bendungan Sadawarna yang berlokasi di Desa Sadawarna akan dilakukan analisis kestabilan batuan dasar sebagai penopang tapak dan tubuh bendungan. Selain itu, penelitian mendalam juga diperlukan untuk menganalisis kestabilan tanah akibat rembesan air guna memastikan tingkat keamanan bendungan. Analisis geoteknik dilakukan dengan memperhitungkan nilai Rock Quality Designation, yang kemudian dikorelasikan antara titik-titik bor untuk memberikan gambaran jenis batuan di bawah permukaan. Jenis batuan sangat dipengaruhi oleh struktur rekahan, karena kerapatan rekahan akan tercermin dalam nilai RQD. Hasil evaluasi geoteknik menunjukkan bahwa tanah dasar bendungan pelana didominasi oleh batuan dengan kelas CM hingga CL. Sementara itu, batulempung hitam memiliki kelas batuan D, sehingga perlu dikupas dan dilakukan perbaikan dengan beton gigi bermutu K 175. Sadawarna Dam is located in Sadawarna Village. An analysis of the stability of the bedrock as support for the site and body of the dam will be carried out. Apart from that, in-depth research is also needed to analyze the stability of the soil due to water seepage to ensure the safety level of the dam. Geotechnical analysis is carried out by calculating the Rock Quality Designation value, which is then correlated between drill points to provide an overview of the rock types below the surface. The type of rock is greatly influenced by the fracture structure, because the fracture density will be reflected in the RQD value. The results of the geotechnical evaluation show that the base soil of the saddle dam is dominated by rocks with classes CM to CL. Meanwhile, black mudstone has rock class D, so it needs to be peeled and repaired with K 175 quality dental concrete.
Thermal Maturation Trend and Cluster Validation Using K-Means Clustering: Case Study in Salawati Basin Muhartanto, Arista; Sutadiwiria, Yarra; Mordekhai, Mordekhai; Ronoatmojo, Imam Setiaji; Riyandhani, Cahyaningratri Prima; Burhannudinnur, Muhammad
Indonesian Journal on Geoscience Vol. 11 No. 1 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.1.111-122

Abstract

In the last few years, exploration activities have experienced obstacles and have not attracted much attention from researchers in Indonesia. One of the basins in Indonesia that is still interesting is Salawati Basin in West Papua, Indonesia. Several studies related to petroleum systems have been carried out in this basin, especially those that control the migration of hydrocarbon in Salawati Basin. This research was conducted on three wells located in the western of Salawati Basin to evaluate the characteristics and the maturity of the source rock, especially the Sirga Formation. This formation is penetrated by wells MM-02, MM-03, and MM-04, by using the K-Means Clustering method to validate several parameter variations of the maturity level. K-means cluster performs data from various parameters of maturity level with predefined three numbers of cluster. The thermal evolution of source rocks can alter organic matter physical and chemical properties, converting it into hydrocarbon compounds. The selected maturity parameters have good sensitivity to the determination of thermal maturity including phenanthrene (P), in addition to the MPI (methylphenanthrene index) parameter which was obtained from mass chromatograms m/z 178 and m/z 192 based on the peak area of P and methylphenanthrene (MP). Based on the appearance of the crossplot, both Radke and Kvalheim Formulas show that the maturity in studied area is divided into three main zones: peak maturity zone, early maturity zone, and outliers. This study also found that increasing thermal maturity is correlativewith the increasing depth.
The Influence of Asymmetrical Formation from Makassar Basin to the Geochemical Characteristics of Mallawa Formation Sutadiwiria, Yarra; Ronoatmojo, Imam Setiaji; Fathaddin, Muhammad Taufiq; Rendy; Riyandhani, Cahyaningratri Prima; Yusuf, Ariq Haykal; Aufariq Asaria Cifa; Mordekhai; Yeftamikha; Amalia; K.Gunawan, Brahmantyo
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 3 (2025): JGEET Vol 10 No 03 : September (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.3.22993

Abstract

A functional hydrocarbon system relies on three key elements: source rock, reservoir rock, and seal rock. These components are essential in assessing the hydrocarbon potential of a region. In South Sulawesi, the Makassar Basin shows promise for petroleum development, particularly with the Mallawa Formation an Early to Late Eocene unit serving as a potential source rock. Source rocks play a critical role in generating and storing hydrocarbons. Indonesia’s frequent oil and gas exploration activities are driven by the presence of numerous prospective hydrocarbon-bearing areas. It's crucial to recognize that source rocks typically form within sedimentary basins. The Makassar Basin, a land-based Tertiary sedimentary basin situated along western and southern Sulawesi, originated from tectonic activity, specifically the widening of the Makassar Strait, which began no later than the Early Paleocene. This tectonic evolution significantly affected the thermal maturation of the basin’s source rocks. This study applies geochemical analysis of cutting samples to evaluate the maturity of these rocks. The findings contribute valuable understanding to hydrocarbon exploration in South Sulawesi, a region characterized by a complex tectonic framework. The results of laboratory analyses show that sustainable hydrocarbon exploration may be possible in South Sulawesi, especially in Balangbaru Formation, which is believed to be a potential source rock, in addition to the Mallawa Formation.
Co-Authors Abdul Hamid Abdurrachman Asseggaf Akmalia Putri, Deyana Amalia Andry Prima Andy Livsey Ardikasa, Gentala Arista Muhartanto, Arista Arkhandiaz Shalimar Aufariq Asaria Cifa Bani Nugroho Barona Belladesta Benyamin Benyamin Bronto Sutopo Budi Wijaya Cahaya Rosyidan Cahyaningratri P.R. Cahyaningratri Prima Riyandhani Dedi Sunjaya Dwi Saputra, Zanuar Erick Estrada Dolok Saribu Erick Estrada Dolok Saribu Fadilah, Muhammad Irfan Faruq Daniswara Filipus Armando Armando Ginting Firman Herdiansyah Fitra Yuda, Himmes Hadi Taqiuddin, Akrom Harry Pramudito Harry Pramudito, Harry Heru P Sanusi Himmes Fitra Yuda K.Gunawan, Brahmantyo Kefi Rahmadio Koro, Margaretha Inggrid Wuno Meirawaty, Mira Mira Meirawaty Mohammad Apriniyadi Mordekhai Mordekhai, Mordekhai Muhammad Burhannudinnur Muhammad Irfan Fadilah Muhammad Naufa Syafrun Muhammad Taufiq Fathaddin, Muhammad Taufiq Muhammad Yusril Ihza Mahendra Triany Novela, Adita Novi Triany premjit singh singh Putri, Al Zahra Rachmayanti, Zarah Rahmadio, Kefi Rendy Rosiyanti Sinaga Rosmalia Dita Nugraheni Rosmalia Dita Nugraheni Samsol Sinaga, Rosiyanti Sinulingga, Asya Sridah Syavitri, Dewi Yarra Sutadiwiria Yeftamikha Yeftamikha Yeftamikha Yuda, Himmes Fitra Yusuf, Ariq Haykal Zanuar Dwi Saputra Zefanya Gian Aginta Kembaren Zefanya Gian Aginta Kembaren Zefanya Gian Aginta Kembaren Zefanya Gian Aginta Kembaren, Zefanya Gian Aginta Kembaren