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All Journal Journal of Petroleum and Geothermal Technology Jurnal Offshore: Oil, Production Facilities, and Renewable Energy Scientific Contributions Oil and Gas
Wicaksono, Dimas Suryo
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Mechanical Engineering

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Evaluation of HPU Performance in High GLR Oil Well BNG-X3 Benuang Field South Sumatera Pramana, Edho; Suranto; Helmy, Mia Ferian; Bintarto, Bambang; Rahmadhini, RR Rahajeng Suryo; Wicaksono, Dimas Suryo
Journal of Petroleum and Geothermal Technology Vol. 6 No. 2 (2025): November
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v6i2.14921

Abstract

Nowadays, producing BNG-X3, a well in Benuang Field, is relatively easy due to its natural drive which is bottom water aquifer combined with high associated gas content. Hence, most of the wells are flowing naturally from reservoir to surface facilities. However, issues most likely to occur overtime, especially when the pressure depletes due to production hence could not supply enough energy for the fluid to flow naturally. In this study, analysis was conducted to address this future problem by implementing a suitable artificial lift for this kind of circumstances. To get a more sustainable and continuous result, post installation evaluation was carried out to define key parameters that can lead to success and optimization in future application of Hydraulic Pumping Unit (HPU) in Benuang Field. The analysis consists of reserve calculations, economic feasibility, and step by step design for artificial lift HPU. The HPU installation and production performance monitoring for well BNG-X3 were conducted thoroughly to assess whether the implementation was optimized based on the well’s potential. Reserve calculations were performed using the Decline Curve Analysis (DCA) method and Pipesim software, while the HPU design was developed using Microsoft Excel. Field data was utilized for monitoring and evaluating the results. Based on the analysis, well BNG-X3 still holds significant potential. From an economic perspective, it has a positive Net Present Value (NPV) of $615,000 and a Payback Period (POT) of less than one year. Production observations indicate that well BNG-X3, with a Gas-Liquid Ratio (GLR) of up to 1000 SCF/STB and a high gas production rate, can be reactivated. The use of a 2.5” pump, along with SPM 5 and SL 155-inch parameters, has been fairly successful in restoring lost production. However, the achieved production rate has not yet reached the well's optimal potential due to the pump efficiency still being below the target (67%).
Caprock Integrity Assessment from Core-Based Formation Analysis and Laboratory Workflow: A Case Study of The Asri Basin Caprock Buntoro, Aris; Putra, Teddy Eka; Kristanto, Dedi; Swadesi, Boni; Amir, Zulhemi; Lukmana, Allen Haryanto; Wicaksono, Dimas Suryo; Nurcholis, Muhammad
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.2021

Abstract

Caprock integrity is a critical factor in ensuring the long-term safety of CO₂ geological storage, enhanced oil recovery (EOR), and wellbore stability. This study investigates the sealing performance of shale- and carbonate-rich caprock intervals from the Asri Basin, with specific focus on the Baturaja and Gita Formations. This study introduces a CT-guided integrated laboratory workflow for caprock integrity assessment, which simultaneously links petrophysical sealing capacity, mineralogical controls, and geomechanical strength within a unified experimental framework, a workflow rarely applied in Southeast Asian basins. Whole-core sections from Well ASR-1 were screened using computed tomography (CT) imaging to identify fractures and heterogeneity prior to plug extraction. Laboratory methods included porosity and permeability determination under variable confining stresses, mercury injection capillary pressure (MICP) analysis to evaluate sealing capacity, mineralogical characterization by X-ray diffraction (XRD), scanning electron microscopy (SEM–EDS), petrography, and mechanical testing (UCS, triaxial, and Brazilian tensile tests). The results demonstrate significant depth-dependent variability: The Baturaja Formation exhibited heterogeneous sealing capacity, with entry pressures ranging from 217 to 1,197 psi, while the Gita Formation consistently displayed strong sealing, with maximum Pc_entry of 2,844 psi and pore systems dominated by <0.1 µm throats. Mechanical tests confirmed adequate strength and the preservation of low permeability under confining stress, with clay content and carbonate cementation identified as primary controls on integrity. The integrated workflow enables a process-based interpretation of lithology-controlled sealing mechanisms, improving the robustness of site selection and risk assessment for CO₂ storage in the Asri Basin and similar carbonate and mudstone systems.
Evaluasi Surveillance Performa Waterflooding dengan Pendekatan Chan's Diagnostic Plot Rahmadhini, Rahajeng; Suranto; Karina Larasati; Wicaksono, Dimas Suryo
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol. 9 No. 2 (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.v9i2.2603

Abstract

Declining oil production as reservoir pressure decreases occurs because the reservoir's natural driving force is no longer able to force to the production well from porous permeable formation. The decline in oil production and reservoir pressure that occurs in the field over time necessitates the implementation of a second-stage oil recovery method (secondary recovery) that can replace the initial method (primary recovery). Secondary recovery method used in this study is water injection, or waterflooding. The objective of this research was to conduct a surveillance analysis of the waterflooding operation using the Chan's Diagnostic Plot approach to determine the connectivity between the wells involved in the operation. Water injection was implemented in oil reservoir in Field “RR” in 1995, and a second production peak was achieved in 1999 with an injection rate of 1,843 bwpd. water injection performance analysis in this study was carried out on the T-070T injection well against 2 production wells T-050 and T-111 using the Chan's Diagnostic approach to determine the connectivity between the waterflood impacted wells. Channeling was observed in that wells during waterflooding. This anaylsis indicates flow connectivity between the well T-070T and T-050/T-111
Co-Authors Amir, Zulhemi Bintarto, Bambang Boni Swadesi Buntoro, Aris Helmy, Mia Ferian Karina Larasati Kristanto, Dedi lukmana, allen haryanto Nurcholis, Muhammad Pramana, Edho Putra, Teddy Eka Rahmadhini, Rahajeng Rahmadhini, RR Rahajeng Suryo Suranto