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Scientific Contributions Oil and Gas
Published by LEMIGAS
ISSN : 20893361     EISSN : 25410520     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Energy
The Scientific Contributions for Oil and Gas is the official journal of the Testing Center for Oil and Gas LEMIGAS for the dissemination of information on research activities, technology engineering development and laboratory testing in the oil and gas field. Manuscripts in English are accepted from all in any institutions, college and industry oil and gas throughout the country and overseas.
Arjuna Subject : Energi (semua kategori) - Teknologi Bahan Bakar
Articles 17 Documents
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Search results for , issue "Vol 48 No 1 (2025)" : 17 Documents clear
The Emergence of Natural Hydrogen: Genesis and Current Perspectives Dr Himmat Singh
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1691

Abstract

In recent years, natural hydrogen has emerged as a promising source in the future energy mix. Since its accidental discovery in Mali in 2012, global interest in this form of hydrogen—often called geological, white, or gold hydrogen—has surged. Generated primarily through serpentinization, a process where water reacts with iron-rich minerals, natural hydrogen can become trapped in reservoirs beneath impermeable rocks. Other natural processes also contribute to its formation. A recent study by French geologists and Albanian scientists found hydrogen with 85% purity in a chromium mine, with minimal methane contamination, resulting in a low carbon intensity of around 0.4 kg CO2e per kg of hydrogen produced. According to Rystad Energy, white hydrogen could potentially transform the clean hydrogen sector, shifting it from an energy carrier to a primary energy source. Interest in natural hydrogen is growing rapidly, with the number of companies involved, increasing from 10 in 2020 to 40 by the end of last year. Exploration is underway in countries like Australia, the U.S., Spain, France, Albania, and Canada. Canada-based Hydroma, for instance, extracts white hydrogen at just $0.50 per kg, while projects in Spain and Australia aim for around $1 per kg. This suggests that natural hydrogen could offer a cost-effective, low-carbon energy alternative. This article examines the potential of natural hydrogen to play a key role in achieving a net-zero carbon future by exploring its science, economics, and ongoing global exploration efforts.
INITIAL STUDY ON THE PROSPECT OF SOLID OIL WASTE UTILIZATION FROM X FIELD AS A BASIC MATERIAL FOR ROAD ASPHALT MIXING WITH MARSHALL TEST Erdila Indriani; Purnomosidi Purnomosidi; Rizky Martha; Bryan Ginting
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1693

Abstract

The upstream oil and gas industry in the production sector is made up of numerous lifting activities, carried out in wells, as well as storage and sales tanks. Preliminary research has been conducted on the process of gathering systems from each point of the production facility unit to determine the pressure loss, blockage or leakage problems. The findings showed that oil spill points due to the accumulation of crude spills mixed with other sediments was approximately 2043 m3 per week. B3 waste disposal is often a burden for companies because it is expensive without revenue value, while solid waste has economic value and can be reused. Therefore, this research aimed to evaluate the use of solid waste containing 48.01% Total Petroleum Hydrocarbons (TPH), including mineral and metal sediments, namely XRD, XRF and AAS tests as basic materials for road asphalt. The result showed that the use of solid waste with a density specification of 0.92 and a Pour Point of 1700 C as the basic material for making road asphalt mixed with aggregate achieved an initial setting time of less than 5 minutes and Compressive Strength of 0.25 MPa less than the 2 MPa standard value at R20. In conclusion, the Asphalt Resin Paraffinic Sediment obtained from solid waste was less than 10% and could not be used for road asphalt hardening, hence the need to add commercial asphalt and other additives.
Fungal Analysis of Aspergillus niger as an Alternative Biosurfactant for Microbial Injection-Enhanced Oil Recovery Novia Rita; Agus Dahlia; Hanna Soraya; Ilmiati Ilmiati
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1694

Abstract

This study aims to evaluate the ability of Aspergillus niger to produce biosurfactants as a cost-effective and environmentally friendly alternative for the microbial-enhanced oil recovery (MEOR) process. Biosurfactants were produced using different carbon sources: waste cooking oil, liquid paraffin, and tapioca flour in Stone Mineral Salt Solution media. The growth and production of biosurfactants from these sources were analyzed through oil displacement tests, emulsification activity, and surface tension measurements. Tapioca flour emerged as the best carbon source, achieving the highest oil displacement area of 6 cm and an emulsification index of 51.3%. These findings suggest that biosurfactants obtained from Aspergillus niger have significant potential for MEOR applications, providing an eco-friendly solution for enhanced oil recovery.
ANALYSIS ON LINKAGE AND MULTIPLIER EFFECTS OF UPSTREAM OIL AND GAS SECTOR IN INDONESIA'S ECONOMY USING INPUT-OUTPUT METHOD pri agung rakhmanto; Komaidi Notonegoro; Rini Setiati; Dwi Atty Mardiana
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1700

Abstract

The aim of this study is to analyze the role of the upstream oil and gas sector within Indonesia's economy in terms of its linkage to other sectors and the multiplier effect it produces. The input-output (IO) analysis method is applied by calculating the total, backward, and forward linkage index and multiplier effect index values of the upstream oil and gas sector. Building upon a previous study using the 2005 BPS IO Database updated in 2010 (2005 IO), this study used the 2010 IO Database released by BPS in 2015 (2010 IO) and the 2016 IO Database released in 2021 (2016 IO), processing the data using Python-based software. Based on the calculation using 2010 IO Database, there were 93 sectors with linkage to the upstream oil sector and 104 with linkage to the upstream gas sector, whereas the 2016 IO Database identified 96 sectors with linkage to the upstream oil sector and 113 with linkage to the upstream gas sector. Simulated calculation and analysis results revealed that there was an increase in total (backward and forward) linkage index values of the upstream oil and gas sector, from 3.8801 to 4.0826 for the upstream oil sector and from 3.1256 to 3.3940 for the upstream gas sector. In regard with multiplier effect, simulated calculation results also pointed towards an increase in total multiplier index values, from 6.1855 to 7.8943 for the upstream oil sector and from 4.9828 to 6.5630 for the upstream gas sector. The increase in total multiplier index in the national upstream oil and gas sector correlates with an increase in linkage between the upstream oil and gas sector and other sectors in Indonesia's economy as a whole, both backward and forward. Analysis results showed that the greater the multiplier index reported by a sector with linkage to the upstream oil and gas sector, the greater the total multiplier index produced in the upstream oil and gas sector.
Development of Energy System Modeling to Forecast 2060 Oil and Gas Demand in The Household Sector of East Kalimantan Using Bottom-Up Method Andi Jumardi; Purnomo Yusgiantoro; Utjok Siagian
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1732

Abstract

Household sector is significantly influenced by population and economic factors, which are two key variables in energy consumption projections. For example, the selection of East Kalimantan as the location for the Nusantara Capital City through Law Number 3 of 2022 increased the household energy consumption in the area. It was observed that cooking and electricity needs were dominated by the usage of oil and gas, leading to the need for energy system modeling to design appropriate energy policies, avoid dependence on fossil fuels, and control CO2 emissions in the future. Therefore, this research aims to forecast oil and gas demand of households up to 2060 based on several scenarios. A bottom-up method was dynamically connected to multiple variables for the forecast due to its ability to provide essential feedback loops, delays, and interactions required for energy system. The results showed that Business as Usual (BaU) scenario led to 28,96 million Barrel Oil Equivalent (BOE) and 8,09 million tons of emission in 2060 while Indonesian Capital City (IKN) scenario had 35,65 million and 9,8 million tons respectively. It was further reported that low carbon (LC) scenario produced 3,5 million tons of emissions.
Utilization of Jenitri as A Bioadsorbent in Petroleum Field-Produced Water Muhammad Khairul Afdho; Rika Lala Saputri; Adiella Zakky Juneid; Razif Muhammed Nordin; Muhammad Salihin Bin Zakaria; Tomi Erfando
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1734

Abstract

As oil and gas fields mature, the volume of produced water can increase substantially, often exceeding 90% of total production. This water cannot be directly discharged or reused due to harmful contaminants that pose considerable environmental risks. One major challenge is the absence of efficient, eco-friendly, and cost-effective filtration media for its treatment. This study aimed to develop and assess an alternative adsorbent derived from jenitri seeds, chemically activated with potassium hydroxide (KOH) at controlled temperatures. The primary goal was to identify a more effective and sustainable adsorbent than those currently used in oilfield operations. The methodology involved the preparation of this adsorbent, Its physicochemical characterization included bulk density measurement, scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR) analyses, along with performance testing through filtration, benchmarked against natural adsorbents such as candlenut and walnut. The KOH-activated jenitri demonstrated superior pollutant removal performance, primarily due to enhanced porosity and surface area resulting from the activation process. It exhibited the lowest bulk density (0.6 g/mL), an optimal porous structure as revealed by SEM, and the presence of active functional groups such as –OH, C=O, and C–O, identified through FTIR analysis. In filtration tests, KOH-activated jenitri effectively reduced total dissolved solids (TDS) to 600 mg/L and turbidity to 100–200 nephelometric turbidity units (NTU), outperforming natural jenitri, candlenut, and walnut, whose limited porosity contributed to lower adsorption efficiency
ASPEN HYSYS SIMULATION FOR LPG PRODUCTION OPTIMIZATION IN DEETHANIZER COLUMN: CASE STUDY IN DELAYED COKING UNIT Agatha Sekar Windyaningrum; Arif Nurrahman; Pusparatu Pusparatu; Asa Aditya Persada; Raihan Fakhri
Scientific Contributions Oil and Gas Vol 48 No 1 (2025)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v48i1.1738

Abstract

The global petroleum refining industry faces increasing pressure to optimize resource utilization while ensuring environmental sustainability. This challenge is further intensified by the rising demand for lighter, cleaner fuels and heavier crude oil feedstocks. The Delayed Coking Unit (DCU) plays an important role in refining processes by converting vacuum residue into valuable products such as Liquefied Petroleum Gas (LPG), diesel, naphtha, and green coke. The LPG market, currently valued at $113.7 billion, is projected to grow to $165.1 billion by 2033. Within this process, the deethanizer column utilizes pressurized distillation to separate ethane (C2) from LPG. According to evaluation results, the column's feed flow was recorded at 83.7 tons per day, with a feed temperature of 102.61°C and a top column pressure of 18.84 kg/cm². The feed composition data was obtained through laboratory analysis. According to the calculation, the theoretical tray number was 17, the reflux ratio was 0.9936, and the total tray efficiency was 56.57%. The optimization of deethanizer column operating conditions was carried out by increasing the bottom product yield, which aimed to determine the optimum point with the greatest LPG yield. Based on a trial-and-error using Aspen Hysys V14 software, the optimum conditions were identified when the column was operated at 110℃ reboiler temperature and reflux ratio 2, which could increase LPG yield to 73.21 tons/day with 98.1% w/w purity. Economically, the profit increased from $18,444,932.92/year to $22,640,582.13/year

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