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Journal of Earth Energy Science, Engineering, and Technology

jeeset
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Published by Universitas Trisakti

ISSN : 26153653 EISSN : 26140268 DOI : https://doi.org/10.25105/jeeset.v1i1

Core Subject : Science,

Energy

This journal intends to be of interest and utility to researchers and practitioners in the academic, industrial, and governmental institutions.

Arjuna Subject : Energi (semua kategori) - Energi Terbarukan, Keberlanjutan dan Lingkungan

Articles 121 Documents

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Comparative Study of In-Furnace and Out-Furnace Coal Blending on Performance Acceptance in Ultra Supercritical Coal-Fired Power Plants Hantoro, Ridho; Kurniawan, Tito
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/qnyep978

This study aims to improve fuel flexibility in ultra-supercritical coal-fired power plants through an optimal coal blending strategy. This is important because this type of power plant faces challenges in coal availability, operational reliability, and energy efficiency, and must comply with increasingly stringent emission regulations. However, determining the ideal coal blend remains a challenge due to the difficulty of balancing aspects of performance, emission levels, production costs, and overall operational impacts. In this study, the Multi Criteria Decision Making (MCDM) method with a goal programming approach is used to optimize the proportion of coal blending in the boiler (in-furnace) and out-furnace. This study is important to ensure that ultra-supercritical coal-fired power plants can meet energy demand more flexibly, efficiently, and sustainably in the face of changing coal supply conditions and environmental policies. The study tested various coal calorific values (from 5200 to 4200 kCal/kg) optimally used individually (single coal) and mixed. Coal blending optimization was carried out on 4 parameters using five types of coal to fill five boiler silos, obtaining an improvement in sulfur parameters of 6.3%, coal price parameters of 0.85%, HHV parameters of 0.54% and slagging-fouling index parameters of 5.64%.

Evaluation of Indonesia's Upstream Oil and Gas Fiscal Terms in Comparison to Malaysia's Enhanced Profitability Terms (EPT)Case Study of Block X Exploration Field Halim, Yosep; Rakhmanto, Pri Agung; Mardiana, Dwi Atty; Irawan, Sonny; Lalaina, Ramefivololona Hanitra; Aimé, Rajomalahy Julien; Fifaliana, Razakamampianina Valisoa; Harifenitra, Ravololoarimanana
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/hsn4wb37

Oil and gas sector is one of the main drivers of Indonesia's economy. Thus, it is important to ensure the attractiveness of Indonesia's Production Sharing Contracts (PSC) fiscal terms for investment, especially in comparison with neighboring countries. In 2021, Malaysia introduced the Enhanced Profitability Terms (EPT) PSC, which is considered to provide a better and more reasonable return for oil and gas contractors. The purpose of this study is to analyze and compare the attractiveness of the Cost Recovery and Gross Split fiscal terms in Indonesia with the EPT fiscal terms in Malaysia, based on economic indicators, including their sensitivity. This study uses a quantitative approach by calculating the economic viability of fields (NPV, IRR, POT), their sensitivity, the range of %CT and %GT, and the profitability characteristics of an exploration block field (Block X). From the evaluation and comparison conducted (specific to the assumed case), it was concluded that the Indonesian Gross Split PSC and the Malaysian EPT PSC have improved economic indicators compared to the Indonesian Cost Recovery PSC. Therefore, the Indonesian Gross Split PSC and the Malaysian EPT PSC generally have better economic indicators, including sensitivity to changes in oil prices, operating costs, and production levels, compared to the Indonesian Cost Recovery PSC. To obtain a more complete picture and enrich the evaluation of these fiscal terms, further analysis can be conducted by considering business risks of contractors, simulations with the application of incentives, and other factors that can affect investment decisions.

Production Optimization using Nodal Analysis in Redesigning SRP on Well “MEI” South Sumatera Field Rian Cahya Rohmana; Dewantoro, Rochvi Agus; Safitri, Mairani Ananda
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/kp5q3q77

South Sumatera field has a Well “MEI” produced using an artificial lift system of the sucker rod pump, currently producing 100 bfpd. The main purpose of this research is to optimize the pump by redesigning it. The methods used are determining the maximum production rate using the Fetkovich IPR method, evaluating the installed pump to obtain its efficiency volumetric value, and redesigning the pump using nodal analysis by adjusting the stroke length and stroke per minute. Evaluation shows the pump efficiency volumetrics value is 53%, which means the pump is not working optimally. The well's flow rate can still be improved, so a redesign will be conducted to optimize the well production. After the redesign, with a stroke length of 54 inches and a stroke per minute of 6.8 rpm, the well's flow rate increased from 100 bfpd to 164 bfpd, and the volumetric efficiency increased by 92%. This research provides an overview of the effectiveness of redesigning SRP by adjusting stroke length and stroke per minute to improve the pump performance and production rate.

Numerical Simulation of Solvent Injection for Late-stage Steamflood Budi, Iwan Setya
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/b1x18s28

This paper evaluates the solvent injection process to recover remaining oil during late-stage of a steamflood using numerical simulation. After Steam Break through, a steamflood recovery will enter a late period identified by increasing Steam-Oil Ratio (SOR). It reduces the economics since steam is an intensive energy process aiming to recover oil quickly, much quicker than chemical EOR. Solvent is expected to substitute a large amount of steam injection and able to lower heavy oil viscosity. In oilfield worldwide, solvent is often used as an alternative for SAGD where well configuration is uniquely arranged using a pair of horizontal wells as injector and producer. However, instead of horizontal well pair as in SAGD, this study examines common pattern (inverted 9 spot) in steamflood project which mainly utilizes vertical wells for both injector and producer. Using thermal methods, the fluid production favorably tends to be higher, but heat loss associated from surface line down to subsurface can hurt the economics. Three scenarios are developed and studies resulting that oil recoveries achieved are not signifacntly lower however at the same time requires much lower energies (and cost) for solvent injection.

Filtration to Reduce Turbidity, Manganese, and Iron Concentrations in Polluted Groundwater Sources Arson, Rudolfus; Ratnawati, Rhenny; Febrianti, Aulia Nur
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/7jabbs62

The Indonesian people use most clean water from groundwater. The issue that develops is that Manganese (Mn), Iron (Fe) and Turbidity frequently taint the quality of groundwater and river water used by the population. To lower the concentration of Manganese (Mn), Iron (Fe) concentration and turbidity levels in groundwater in the Rungkut area of Surabaya, this study will apply filtering technology comprising silica sand, manganese zeolite and ferrolite media with varying media height. From the research that has been done, it is known that combination A filtration technology has the ability to reduce the concentration of Manganese (Mn) by 86.96%, Iron (Fe) by 65.87% and the turbidity level by 86.03% while combination B has the ability to reduce the concentration of Manganese (Mn) by 68.12%, Iron (Fe) by 76.19% and the turbidity level by 72.23% and combination C has the ability to reduce the concentration of Manganese (Mn) by 26.09%, Iron (Fe) by 78.57% and the turbidity level by 88.48%. The study found that combination A filtration technique most effectively lowers the Manganese (Mn) content by 86.96%, combination C does so for iron (Fe) by 78.57% and the turbidity level by 88.48%.

Innovation in Hydraulic Fracturing Technology Using Ctafs in Production Optimization Strategy in Unconventional Reservoir Barnett Shale: A Geology and Rock Physics Based Approach Pratama, Fauzan Abiyyu; Nugraha, Fanata Yudha; Baiti, Aisah Nur; Damayanti, Nabila Zafira
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/xsetaz66

The Barnett Shale is the largest unconventional hydrocarbon-producing rock formation in the United States. It consists of shale rocks with high-density mineral content such as smectite, silica, and carbonate, which result in low permeability and porosity. Hydraulic fracturing utilizing the coiled tubing activated frac sleeve completion system (CTAFS) is employed to enhance hydrocarbon production by fracturing the formation. The application of hydraulic fracturing can significantly boost production from the Barnett Shale. To optimize this method, geological analysis and rock physics properties are essential to derive parameters such as predictions of Young’s modulus and Poisson’s ratio in the exploration area. This study uses a systematic review approach based on previous research, supported by secondary data instrumentation including rock core validation and well data digitization, which are subsequently modeled into rock physics parameters. The rock physics model is used to simulate the elastic properties of the rock formation, considering the matrix, constituent composition, and rock heterogeneity. Furthermore, hydraulic fracturing simulations are conducted to predict production and determine the resulting strategies. The research findings indicate that in the interval 10,650–10,725 ft of the EnerGeo1 well, kerogen volumetrics are 18%, quartz 38%, clay 35%, and calcite 15%. The Young’s modulus value is 39.5 GPa, and the Poisson’s ratio is 25.2%, categorizing it as Type 1. In the interval 10,725–10,803 ft, kerogen volumetrics are 18%, quartz 32%, clay 41%, and calcite 16%. The Young’s modulus value is 37.1 GPa, and the Poisson’s ratio is 24.8%, categorizing it as Type 2. In the interval 10,803–10,880 ft, kerogen volumetrics are 19.6%, quartz 41%, clay 31%, and calcite 11%. The Young’s modulus value is 43.3 GPa, and the Poisson’s ratio is 26.6%, categorizing it as Type 3. The data reveals that Type 3 rocks are more suitable for hydraulic fracturing compared to Type 1. Meanwhile, Type 2 rocks are identified as being suitable for placing horizontal wells due to the clay and calcite matrix, which can prevent formation collapse. It can be concluded that integrating geological and rock physics data can yield a more efficient and innovative fracturing design, resulting in a production increase of up to 129% compared to previous production levels.

Hydraulic Fracturing Stimulation Planning of “X” Well in Talang Akar Formation Helmy, Mia Ferian; Nugraha, Fanata Yudha; Boni Swadesi; Dewi Asmorowati; Susanti Rina
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 1 (2025): JEESET VOL. 8 NO. 1 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/arygvm79

“X” well is a well with a productive sandstone formation with a productivity index of 0.1 bfpd/psi. Hydraulic fracturing will be performed based on screening results, with design simulated using commercial software. The design process includes analyzing well data, reservoir characteristics, and rock geomechanics using the Perkins, Kern, and Nordgren (PKN) fracture model. The chosen fracturing fluid is YF135.1HTD with Carbolite Proppant (12/18 mesh). The geometric model applied uses the PKN method with results of a fracture length of 463.9 ft, fracture height of 9.84 ft, fracture width of 0.37 inch, and fracture conductivity of 77063 md.ft using a total volume of fracturing fluid of 13500 gallons and a total mass of proppant. amounting to 40590 lbs. The required surface injection pressure is 4176.13 psi with an injection rate of 18 bpm and a total pumping time of 20.2 minutes. The performance improvement of the “X” well was in the form of average formation permeability from 29.2 mD to 369.4 mD, an increase in productivity index of 6.5 times and an increase in production rate from 50.46 bfpd to 296.48 bfpd. So, the planning of the hydraulic fracturing design for the “X” Well can be considered for implementation.

Modification of Total Alkaline-Silica Method for Naming Volcanic Rocks Benyamin; Muhammad Burhannudinnur; Suryo Prakoso; Mohamad Salsabila; Dwi Kurnianto
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/rg3yrb97

The use of the Total Alkaline-Silica (TAS) method from Maitre (2002) has been a very important object for scientists involved in the world of volcanology for years. Much literature shows that the use of this method is generally acceptable and well used for naming volcanic rocks, although for certain volcanic rocks such as lamprophyres, for example, there are still limitations in the use of this method. The TAS method requires the results of rock chemical analysis in the form of total Alkaline content which is the sum of Sodium Oxide (Na2O) and Potassium Oxide (K2O) on one side and total Silica content (SiO2) on the other side, which means that without the availability of chemical analysis results for both components, the TAS method cannot be used or the method can still be used by modifying the components of the chemical analysis results with other components, in this case it will be tried to replace it with the magnitude of various data from logging. The purpose of this study depends on the availability of logging data in the area to be studied in various variations such as Nuclear, Electrical and Acoustic Logs with various crossplots from the available logs. The results of the various crossplots are then validated using core rock data that has been named using petrographic analysis based on the naming of volcanic rocks using the classification commonly used in the discipline of volcanology.

The Analysis of Polyamine Mud Application in Drilling Claystone and Shale in ES Field Tony, Brian; Saputra, Ega Dimas; Astuti, Dian Indri
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/w83pta14

Historically, the ES Field is a drilling area located in South Sumatera Basin that applies 10% KCl Polymer throughout the drilling section. Challenges such as pipe sticking and increased borehole diameter due to washout have been encountered in this field. Increased cement volume and tripping time are factors affecting drilling efficiency. Therefore, innovation and improvement in the type of drilling mud used are needed to address these challenges in the field. This paper discusses the effectiveness of polyamine through shale study analysis, including CEC, dispersion, accretion, XRD, and LSM, as well as performance analysis of mud application as an alternative to KCl-Polymer in the drilling of Well ED-24 in the ES Field. Results indicate that polyamine has advantages and benefits as an inhibitor. Shale study from the cuttings of Well ED-22 shows that shale in the Gumai Formation is characterized by kaolinite and is dispersive, hence the use of polyamine. In the 17.5-inch trajectory, tight hole issues were found due to swelling clay at a depth of 561 mMD, which had not occurred previously with 10% KCl-Polymer mud. In the 12.25-inch trajectory, the main cause of shale collapse was insufficient mud weight. Overall, polyamine mud effectively suppresses solid dispersion into the mud, prevents balling, and addresses hole cleaning issues during drilling. The use of 10% KCl-Polymer can be reconsidered for subsequent drilling in the Air Benakat claystone formation, while polyamine mud remains relevant and should be considered for drilling the dispersive Gumai shale formation to suppress solid dispersion.

Optimizing Microbial Enhanced Oil Recovery through Nutrient Optimization in Indonesia Field Manihuruk, Jasmine Christiana; Kurnia, Rani
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 2 (2025): JEESET VOL. 8 NO. 2 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/q8thfp49

Microbial Enhanced Oil Recovery (MEOR), a tertiary recovery technique designed to extract residual oil retained in reservoir pores that are not accessible through conventional extraction methods. By harnessing the capabilities of microorganisms, MEOR improves oil recovery through the generation of bioproducts, including biosurfactants, solvents, gases, and biopolymers. This research focuses on the stimulation of indigenous microbes (microorganisms already existing within the reservoir) by injecting a formulated nutrient solution. The objective is to trigger the metabolic activity of these microbes to produce biosurfactant as metabolite. This research investigates the unique and rapid MEOR response in the TM-X well of Field X, Indonesia. The methodology involved spontaneous imbibition experiments using Berea core samples saturated with TM-X crude oil. A comparison was made between a control system using native brine and a treatment system using brine enriched with an optimized nutrient formula (molasses, NPK, and DAP). The findings revealed a remarkable acceleration in oil recovery for the TM-X well, with the recovery factor increasing from a baseline of 31% to 58% within the first 24 hours. This led to the determination of an exceptionally short optimal soaking period of just one day. This rapid response is attributed to the highly efficient microbial consortium in Field X, which demonstrated swift and potent biosurfactant production. This was evidenced by a reduction in interfacial tension (IFT) from 2.05 dyne/cm to 0.136 dyne/cm and, notably, a simultaneous decrease in oil viscosity from 27.91 cP to 20.76 cP. This study highlights the significant potential of a site-specific MEOR application in Field X, where rapid microbial action can lead to highly efficient and accelerated oil recovery. Overall, the research contributes valuable insights into optimizing MEOR methodologies, highlighting the importance of nutrient optimization in enhancing oil recovery.

Page 12 of 13 | Total Record : 121

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Muhammad Taufiq Fathaddin

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muh.taufiq@trisakti.ac.id

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+6285770946165

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jeeset_mtp@trisakti.ac.id

Editorial Address
Program Studi Magister Teknik Perminyakan (Master of Petroleum Engineering) Fakultas Teknologi Kebumian dan Energi Universitas Trisakti Gedung D Lantai 5 Universitas Trisakti, Jalan Kyai Tapa No.1 Grogol, Jakarta Barat, 11440, Indonesia.

Location
Kota adm. jakarta barat,

Dki jakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Muhammad Taufiq Fathaddin

Contact Email muh.taufiq@trisakti.ac.id

Phone +6285770946165

Journal Mail Official jeeset_mtp@trisakti.ac.id

Editorial Address Program Studi Magister Teknik Perminyakan (Master of Petroleum Engineering) Fakultas Teknologi Kebumian dan Energi Universitas Trisakti Gedung D Lantai 5 Universitas Trisakti, Jalan Kyai Tapa No.1 Grogol, Jakarta Barat, 11440, Indonesia.

Location Kota adm. jakarta barat, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Muhammad Taufiq Fathaddin

Contact Email
muh.taufiq@trisakti.ac.id

Phone
+6285770946165

Journal Mail Official
jeeset_mtp@trisakti.ac.id

Editorial Address
Program Studi Magister Teknik Perminyakan (Master of Petroleum Engineering) Fakultas Teknologi Kebumian dan Energi Universitas Trisakti Gedung D Lantai 5 Universitas Trisakti, Jalan Kyai Tapa No.1 Grogol, Jakarta Barat, 11440, Indonesia.

Location
Kota adm. jakarta barat,

Dki jakarta

INDONESIA