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INDONESIA
Jurnal Offshore: Oil, Production Facilities, and Renewable Energy
Published by Universitas Proklamasi 45 Yogyakarta
ISSN : -     EISSN : 25498681     DOI : 10.30588
Core Subject : Science, Engineering,
Earth & Planetary Sciences Energy Engineering Mechanical Engineering
Jurnal Offshore: Oil, Production Facilities and Renewable Energy is a blind peer-reviewed National Journal in Indonesia and English languages published two issues per year (in June and December). Jurnal Offshore: Oil, Production Facilities, and Renewable Energy focus on providing a publishing platform for scientists and academicians to promote, share, publish and discuss to all aspects of the latest outstanding development in the field of Petroleum Engineering. It encompasses the engineering of oil, production facilities and renewable energy, but it is not limited to scopes. Those are allowed to discuss on the following scope: Oil : geology geophysic in petroleum, reservoir, driliing and production in petroleum. Production Facilities : pipe transportation, separator, flowline, manifold. Renewable energy : geologist, geophysic in geothermal, pirolisis. Software Simulation in Petroleum and Geothermal : CMG, PIPESIM, MFrac, Petrasim, Aspen.
Arjuna Subject : Energi (semua kategori) - Teknik Energi dan Teknologi Daya
Articles 90 Documents
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Successfully Metode Workover : Re-Entry Dan Re-Evaluate Sumur Vertikal X-1 Dengan Sidetrack Dan Drilling Horizontal Pada Lapisan Top Reservoir Novanti, Natasya Dwi; Dwi Saputri, Eriska Eklezia; Gede Hermawan Manuaba, Ida Bagus
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 1 (2024): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v8i1.1870

Abstract

The existing well X-1 is an old vertical well that has been producing oil for many years.Water Oil Contact interval increases until it reaches the perforation depth interval as long as production oil from well is taken . This causes water coning problems to arise, causing the water cut value in this well to reach 30%. To overcome this problem, the X-1 well was closed and a workover operation was carried out with sidetrack to look for the sweet spot oil zone by evaluating the formation of the pilot hole well using a wireline log and wireline formation tester. After the sweet spot oil zone is found, horizontal drilling is carried out in the sweet spot oil zone to create the Maximize Reservoir Contact well. This workover operation was carried out in order to find zones that contain almost 100% oil, as well as reduce water production. Economic calculations were carried out to analyze the success of the pilot hole and MRC well sidetrack workover project. The research methods used to evaluate pilot hole well formations are qualitative and quantitative using the modification archie equation for carbonate reservoir on a wireline log and validated with a wireline formation tester, as well as the method for calculating the feasibility of a workover project using the Indonesian version of PSC cost recovery economics. The results obtained are that the sweet spot oil zone is at a depth of XYY7 ft with water saturation values ​​0.269635 on the wireline log and 0.000122 on the wireline formation tester and oil saturation values ​​respectively are 0.730365 and 0.999878. Based on economic analysis using the Indonesian version of the PSC cost recovery method, it can be concluded that this project is feasible to operate with positive NPV results of $2579.57 MUSD, IRR value of 142% and POT of 1.46 months. Key Words : formation evaluation, wireline log, wireline formation tester, pilot hole well, MRC Well, sweet spot oil zone, water coning, PSC cost recovery.
Optimasi Electrical Submersible Pump (ESP) Pada Sumur MFR-21 Berdasarkan Keadaan Sumur di Masa Depan Suprayitno, Abdi; Ramadhan, Muhammad Fauzi; Afifah, Rohima Sera
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 1 (2024): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v8i1.1888

Abstract

When wells are produced continuously, the reservoir pressure will continue to decrease resulting in decreased production performance from the well. To optimally increase the rate of production, optimization is carried out using an Artificial Lift Electrical Submersible Pump. Based on data from the journal, "MFR-21" well had previously been installed Electrical Submersible Pump but was no longer functioning due to the condition of ESP pump not running or dead due to damage, so the author's goal is to optimize the pump and predict the condition of the well in the future until when the pump is no longer optimal by using Wiggins 3 Phase IPR and carrying out a scenario of decreasing reservoir pressure to predict the Future IPR "MFR-21" well. The results of 3 Phase Wiggins IPR curve analysis obtained a total production rate (Qt/Qmax) 6257 bfpd. Obtained a target production rate of 5005.6 bfpd it is recommended to use the ESP design with the Centrilift GC-8200 pump which has a production recommendation 4400 – 10000 bfpd with a number of stages 168, Horse Power 281 HP, and pump efficiency 69%. As well as using the Future IPR method to reduce 3 reservoir pressures, namely 1750, 1000, 500. When the reservoir pressure reaches 1000 and 500 psia the pump is no longer optimum because the target Q at reservoir pressure is not included in the pump production recommendations. So at reservoir pressure 1000 and 500 psia it is necessary to re-optimize the pump again according to the condition of well.
Literature Review : How to Examine the Mediating Factor of Government Role in Renewable Energy Adoption Haryani, Indri; Widiyanesti, Sri; Rahmatika, Aida Fauzia; Kusumastuty, Dryasmara; Bhirowo, Hendri; Tanbar, Fefria
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 2 (2024): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v8i2.2026

Abstract

Indonesia is a blessed country with abundant renewable resources and the potential to manufacture up to 419 GWh of clean electricity for its people. The government plays a crucial role in shaping and nurturing the proper environment to support RE adoption and transition toward a sustainable economy. Various tools and dimensions are available to observe the government's role in accelerating RE adoption. However, studies show that the metrics used to examine Indonesia’s government regarding RE adoption are lacking. This provides an opportunity to improve the metrics by referring to countries worldwide that show success in the particular research field. The current study aims to address the challenge by presenting a literature review of studies on the government's role in RE adoption and extracting insight to develop improved metrics for examining Indonesia’s government's role in RE adoption. Furthermore, we use data mining to visualize the research map of the current topic to provide an understanding of which areas are underexplored. Thus, future studies can refer to the results to contribute further to the literature.
Penentuan Design Hydraulic Fracturing Dan Analisa Produktivitas Sumur Qwe Pada Lapangan DSA Kusrini, Desi; Yudiantoro, Ismanu; Setiawan, Agung; Amaliyah, Siti
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 2 (2024): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v8i2.2032

Abstract

Sumur QWE terletak di Lapangan DSA berada di Cekungan Jawa Barat. Sumur QWE adalah sumur lama yang akan dibuka kembali pada lapisan batupasir bertujuan untuk meningkatkan laju produksi sumur yang dilakukan program hydraulic fracturing karena adanya formation damage pada interval 2843 – 2848 m. Evaluasi keberhasilan kegiatan hydraulic fracturing dibutuhkan untuk mengetahui keberhasilan kegiatan tersebut. Data yang digunakan meliputi data sumur, data reservoir, data produksi, dan Post Job Report. Data yang telah terkumpul akan dihitung secara manual menggunakan microsoft excel, geometri rekahan dibuat menggunakan simulator menggunakan data tekanan yang didapat ketika kegiatan hydraulic fracturing. Hasil yang telah didapat dari dibandingkan sebelum dan sesudah dilakukan hydraulic fracturing. Pemodelan geometri rekahan menggunakan model PKN 2D. Hasil dari model geometri rekahan digunakan untuk menghitung FCD dan permeabilitas rata-rata menggunakan metode Howard&Fast. Hasil dari evaluasi kegiatan hydraulic fracturing mendapatkan nilai permeabilitas sebelum dan sesudah dilakukannya hydraulic fracturing terdapat kenaikan dari 12 mD menjadi 44,437 mD, dimana mengalami kenaikan sebesar 32,437%, Productivity Index menunjukkan peningkatan produktivitas sumur sebesar 2,868 kali.
Aplikasi Sensor Temperatur dan Inhibitor Sodium Lignosulfonate (SLS) sebagai Solusi Pencegahan serta Monitoring Silica Scaling pada Pipa Pembangkit Listrik Geotermal Safira Rahma Kartika; Firdaus, Azkia Najma; Zahrani, Deanne Ardelia
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 8 No. 2 (2024): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v8i2.2155

Abstract

One of the problems encountered in geothermal exploitation activities is Silica Scaling Rate (SSR). Addressing SSR remains a significant problem, especially during production in geothermal fields with high Silica Saturation Index (SSI). High SSI can lead to silica deposition in pipes. Silica deposition occurs due to temperature drops, pressure decreases, and pH increases. As the temperature drops, the SSR increases, disrupting the fluid flow process from the reservoir. To address this issue, a system was designed to monitor the pipe's condition and trigger SLS injection if the temperature parameter value dropped. SLS functioned by binding silica particles in the fluid, preventing silica from adhering to the pipe walls. This process was carried out by adding SLS chemicals to the fluid flow through the pipes. SLS materials had the ability to bind silica and effectively prevent scale formation. Based on analysis and calculations, a temperature drop was directly proportional to an increase in SSI. A reference temperature of 95°C was used as an indicator for SLS injection because SSI > 1 at this temperature. A dose of 50 ppm SLS was shown to effectively reduce SSI up to 50%, preventing silica scaling in geothermal pipes. This study demonstrates the effectiveness of SLS as a mitigation strategy for silica scaling, offering a cost-efficient and less disruptive solution compared to conventional pipe cutting methods.
Probabilistic Assessment of Well Production Capacity in the Dieng Geothermal Field Using Monte Carlo Simulation and Jiwa Flow Modeling Nesta, Alesandro
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 1 (2025): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v9i1.2144

Abstract

The Dieng Geothermal Field, located in Central Java, Indonesia, is a high-temperature geothermalsystem with two primary reservoirs: Sileri and Sikidang. This study aims to estimate the electricityproduction capacity of the reservoir using a probabilistic approach and Monte Carlo simulation with JiwaFlow software. The methodology involves modeling well trajectory, casing data, and feed zonecharacteristics, incorporating uncertainty in reservoir parameters to generate probability distributioncurves. The simulation results indicate that at 50% probability (P50), the estimated electricity capacity is8.47 MWe, increasing to 11.66 MWe at 90% probability (P90), which is classified as proven reserves. At99% probability (P99), the estimated capacity reaches 14.06 MWe, representing possible maximumreserves. These findings suggest that the Dieng reservoir has significant geothermal energy potential,predominantly characterized as a steam-dominated system, which is optimal for power generation. Thestudy highlights that electricity production can be enhanced through reservoir management optimizationand additional well drilling. The results provide a scientific basis for planning geothermal development,particularly in the expansion of Dieng Unit-2. Future research should focus on improving the accuracy ofcapacity estimations through real-time reservoir monitoring and extended field studies.Keywords: Dieng Geothermal Field, Monte Carlo Simulation, Jiwa Flow, Probabilistic Analysis
Utilization of Agricultural Waste Substrates with Inorganic Salt Medium as Nutrient Enhancer for Biosurfactant Production by MEOR-Oriented Bacterial Consortia Amanda, Nanda Ravenia; Andrijanto, Eko; Lidya, Bevi
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 1 (2025): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v9i1.2330

Abstract

The decline in oil recovery during secondary processes has led to the exploration of tertiary methods such as Microbial Enhanced Oil Recovery (MEOR). This study investigates biosurfactant production by Pseudomonas aeruginosa and Bacillus subtilis in a co-culture system, optimizing fermentation media and evaluating effectiveness in oil recovery. Seven media were tested based on optical density (OD600), emulsification index (E24), oil displacement area (ODA), and yield of wet crude biosurfactant, observed over five days. The highest E24 value, 89.66% was recorded on day two using used lubricant as the water-immiscible phase. The best ODA values were 44.49 cm² for supernatant (ODA SNT) and 55.86 cm² for wet crude biosurfactant (ODA CBS). The optimized production medium contained 2% (v/v) waste cooking oil, 1% (w/v) molasses, and 1% (v/v) tofu wastewater. Partial purification of the culture broth through acid precipitation and solvent extraction yielded the highest wet crude biosurfactant on day three, reaching 155 g/L. The co-culture system at a 1:1 P/B ratio effectively reduced oil-water interfacial tension, as demonstrated by the high ODA values, particularly in the purified crude biosurfactant. This highlights the eco-friendly potential of biosurfactants for MEOR applications.
Porosity and Permeability Study of the Mundu Formation Limestone Unit as a Potential Reservoir Rock in the Gunung Pegat Area, Bojonegoro, East Java Amri, Danang; Siti Umiyatun; Wahyuni Annisa Humairoh; Kharisma Idea; Samuel Antonio Gutteres; Muhammad Ferdian Yusuf
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 1 (2025): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v9i1.2392

Abstract

This research was conducted in the Gunung Pegat area, Babat District, Bojonegoro Regency, East Java. The geographical coordinates of the research location are from 7°7′31″ to 7°8′11″ South Latitude and 112°9′46″ to 112°8′54″ East Longitude. Geologically, it is part of the Rembang Zone and is composed of the Mundu Limestone Formation. The research location is one of the sites that shows an outcrop of the Mundu Formation, with limestone lithology that has the potential to be a reservoir rock. The objective of the research is to study the porosity and permeability characteristics and to evaluate the potential of the limestone as a reservoir rock. The methods used include geological mapping, rock sampling, calcimetry analysis, petrographic analysis, and determination of porosity and permeability values. The results show that the geomorphological units of the research area are divided into anthropogenic, karstic, and fluvial landforms. The rock units at the research location are divided into a limestone unit and a fluvial unit; specifically, the limestone is classified as packstone and wackestone based on calcimetry and petrographic analysis. The stratigraphic sequence from the oldest to the youngest is the Miocene-aged Mundu Limestone Unit and the Holocene-aged Alluvial Unit. The average porosity value of the research area is 30.38%, which falls into the 'excellent' category, and the permeability value is 236.70 mD, which is classified as 'very good,' indicating that the research area has potential as a reservoir.
Evaluation Of Mud Logging And Wellsite Geology Data For Geothermal Feed Zone Identification In Well Dug-L6, Gea Field, South Sumatra Saka Gea, Harmain; Kristanto , Dedy; Herianto, Herianto
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 1 (2025): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v9i1.2408

Abstract

Geothermal drilling requires precise identification of feed zones to optimize well productivity and minimize operational risks. This study evaluates the integration of mud logging and wellsite geological data for feed zone identification during the drilling of Well DUG-L6 in the Gea Field, South Sumatra. The research focuses on directional drilling within the 12¼” and 9⅞” sections, covering depths from 1300 to 2593 m measured depth (mMD). Real-time drilling parameters such as rate of penetration (ROP), weight on bit (WOB), standpipe pressure (SPP), and torque were analyzed alongside mud logging indicators and cuttings description. These datasets were integrated to identify anomalies including drilling breaks, circulation losses, temperature variations, and hydrothermal alteration that collectively serve as proxies for reservoir permeability. Results indicate three significant drilling breaks at 1388–1389.7 mMD, 1667–1669 mMD, and 2495.7–2497 mMD, each marked by abrupt increases in ROP, reductions in WOB, and thermal responses at surface level. Total loss circulation (TLC) occurred continuously from 1355 to 2593 mMD, confirming extensive fracture-related permeability in the deeper section. Cutting evaluation revealed lithologies dominated by dacitic lithic tuff and andesitic volcanic units, with hydrothermal alteration characterized by chlorite and illite mineral assemblages. These features are consistent with fluid–rock interaction and indicate the presence of active geothermal upflow pathways. Integration of drilling anomalies and lithological observations provided strong evidence of productive feed zones that align with structural targets defined in the subsurface model. This study demonstrates that real-time integration of drilling parameters and wellsite geological data provides a robust approach for early identification of geothermal feed zones. Two primary productive intervals 1300–1355 mMD and 2300–2593 mMD were delineated by the concurrence of significant drilling breaks, the onset and persistence of total loss circulation (from 1355 mMD to TD), BHCT anomalies exceeding 55 °C (peaks of 63.4 °C and 60.6 °C), and the presence of hydrothermal alteration minerals. These findings underscore the operational value of mud logging and wellsite geology as reliable, cost-effective tools for reservoir early characterization, enabling informed decision-making during drilling and supporting the sustainable development of geothermal resources in Indonesia.
Perbandingan Evaluasi Slip Velocity Metode Chien dan Moore Corelation pada Sumur BSU Lapangan Bunyu Haryono, Sri; Kusumo , Pribowo Angling; Purwaka, Edi
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 1 (2025): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v9i1.2526

Abstract

Evaluasi slip velocity merupakan aspek kritis dalam menjamin efisiensi pengangkatan cutting selama operasi pemboran. Penelitian ini menganalisis kinerja transportasi cutting pada Sumur BSU Lapangan Bunyu, Tujuannya   untuk mengetahui apakah serbuk bor terangkat dengan baik atau tidak, sudah optimal atau belum dengan membandingkan dua cara.  Metode yang digunakan metode Chien Correlation dan metode Moore Correlation dengan mengintegrasikan parameter rheologi lumpur dan geometri sumur, dimana data dari pengamatan langsung dilapangan. Hasil penelitian menunjukkan bahwa pada interval kedalaman 5762-8823 ft, nilai slip velocity Chien (0,092-0,156 ft/detik), sedang nilai slip velocity Moore (0.0054-0.0126 ft/detik),  secara konsisten lebih rendah dibandingkan kecepatan kritis (3.6758-4.7727 ft/detik), dengan cutting transport ratio Chien mencapai 90,07-93,90%, sedangkan cutting transport ratio Moore mencapai 99.2609 % sampai 99.66% Kondisi ini mengindikasikan pengangkatan cutting yang optimal dan aliran laminer yang terjaga, sehingga berhasil mencegah risiko pipe sticking dan mempertahankan integritas formasi. Temuan penelitian merekomendasikan penerapan metode ini sebagai standar evaluasi hidrolika pemboran dengan memperhatikan variasi karakteristik formasi pada studi lanjutan

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