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All Journal Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat IPSSJ Frontier Advances in Applied Science and Engineering
Mohamad Obby Adianto
Universitas Sriwijaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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EVALUASI SURFACE CASING Mohamad Obby Adianto
Integrative Perspectives of Social and Science Journal Vol. 2 No. 2 Maret (2025): Integrative Perspectives of Social and Science Journal
Publisher : PT Wahana Global Education

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perencanaan casing ke sumur pengeboran dimaksudkan untuk mendapatkan rangkaian casing yang secara teknis kuat yang berfungsi untuk melindungi sumur selama proses pengeboran serta proses selanjutnya. Umumnya faktor yang mempengaruhi perencanaan casing adalah apakah casing aman dan ekonomis untuk digunakan ke sumur. Evaluasi ini menggunakan metode beban maksimum kemudian dievaluasi dengan collapse, burst, dan tension. Makalah ini akan mengevaluasi perencanaan casing pada konfigurasi pada sumur yaitu casing 13 3/8" Permukaan casing grade K-55; 54,5 ppf. Casing permukaan akan berubah dari K-55; 54,5 ppf menjadi H-40; 48 ppf karena H-40;48 ppf akan efisien dan optimal. Dalam evaluasi ini akan dijelaskan apakah grade casing yang digunakan pada sumur OGN-A10 aman dan cukup ekonomis untuk sumur, sehingga hasil evaluasi dapat digunakan untuk konfigurasi casing lebih baik dengan mengkaji keselamatan dan nilai ekonomi. Evaluasi ini menggunakan Metode Beban Maksimum kemudian menghitung tekanan pada casing yaitu tekanan collapse, tekanan burst, dan beban tension. Serta keamanan casing akan mengacu pada faktor keamanan yang digunakan di sumur OGN-A10, faktor keamanan yang digunakan pada setiap beban yang terjadi pada casing adalah beban collapse, beban burst, dan tension beban yang ditahan oleh casing pada sumur OGN-A10.
Analysis of Viscosity Effects from the Addition of Mesona Palustris (Black Grass Jelly) on Chitosan Polymer Mohamad Obby Adianto; Muhammad Agni Gustama; Ferdian Budi Ar Rouf; Nyimas Ulfatry Utami; Robekca Purba
Frontier Advances in Applied Science and Engineering Vol. 3 No. 1 (2025)
Publisher : Tinta Emas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/faase.v3i1.555

Abstract

The main purpose of polymer injection is to reduce the water-oil mobility ratio. Polymers that are widely used are polyacrylamide and polysaccaharides. By increasing the viscosity of the injection fluid, polymer injection can increase the sweep efficiency thereby increasing oil recovery. Refining on petroleum is highly dependent on the efficiency of macroscopic and microscopic pressing. This research purpose is to determine whether the viscosity effect resulted from mesona palustris addition on chitosan polymers could make a good viscosity for oil recovery. The method used in this research is a laboratory experiment with an Ostwald viscometer. The salinity of the formation water used in this study was 20.000 ppm with variations in polymer concentrations of 500 ppm, 1.000 ppm, and 2.000 ppm on the polymer without a mixture of mesona palustris and with a mixture of mesona palustris. The results showed that there was a decrease in polymer viscosity with the addition of mesona palustris to the chitosan polymer, namely the polymer concentration of 500 ppm decreased from 1,56 cp to 1,04 cp, the polymer concentration of 1.000 ppm decreased from 1.87 cp to 1.21 cp. And at a polymer concentration of 2.000 ppm it decreased from 2.38 cp to 1.43 cp.
Analisis Kesesuaian Penggunaan Lahan dengan Rencana Pola Ruang di Kabupaten Ogan Ilir Ar-Rouf, Ferdian Budi; Adianto, Muhammad Obby; Gustama, Muhammad Agni; Utami, Nyimas Ulfatry
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 1 (2026): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i1.1732

Abstract

Abstract Ogan Ilir Regency is included in the development program as a buffer zone for Palembang City, which is part of the Sriwijaya Megaregion, due to its distance of approximately 35 km. Ogan Ilir Regency has established a Spatial Planning (RTRW) Plan for 2023–2024. This RTRW serves as the basis for policy direction and the development of urban areas. Therefore, research on spatial analysis is necessary to evaluate existing development. This study uses descriptive analysis with a spatial approach, namely a Geographic Information System (GIS). The software used is QGIS, which is open-source. The data sources include Sentinel satellite imagery and the Spatial Planning Map of Ogan Ilir Regency. The analysis applies supervised classification to identify existing land use. The results show that 11,461.4 hectares of land use are not in accordance with the Ogan Ilir RTRW. The largest area of inconsistency is found in North Indralaya District, which is planned as an urban area but is still predominantly used for oil palm agricultural land.
Interpretasi Sistem Panas Bumi Suwawa Berdasarkan Sudut Pandang Tektonik Dan Anomali Gravitasi Gustama, Muhammad Agni; Ar Rouf, Ferdian Budi; Adianto, Mohamad Obby
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 1 (2026): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i1.1719

Abstract

The Suwawa geothermal prospect is one of the areas officially designated as a Geothermal Working Area (WKP) in Gorontalo Province, Indonesia. Despite its WKP status, the Suwawa geothermal prospect has not been comprehensively studied from a regional perspective. Previous studies have not conclusively explained the geothermal heat source and the controlling tectonic framework within the Suwawa WKP. Understanding the heat source and tectonic conditions is essential for the effective development of a geothermal working area. This paper applies seismic tomography and satellite gravity methods to elucidate the characteristics of the geothermal system in the Suwawa WKP. Seismic tomography is employed to interpret large-scale tectonic correlations, while satellite gravity data are utilized to assist in identifying potential geothermal heat sources. The seismic tomography results indicate that the tectonic setting influencing the Suwawa WKP is associated with an extensional zone in Teluk Gorontalo. Meanwhile, satellite gravity anomalies suggest that the geothermal heat source in the Suwawa WKP is likely related to a basin structure. These findings imply that the geothermal system in the Suwawa WKP is associated with lithospheric thinning processes.
Implementasi Kegiatan Pengabdian Masyarakat dalam Pembentukan Migas Center Universitas Sriwijaya Adianto, Mohamad Obby; Gustama, Muhammad Agni; Ar-rouf, Ferdian Budi; Utami, Nyimas Ulfatry; Afifah, Putri Dwi
Al-DYAS Vol 5 No 1 (2026): FEBRUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/aldyas.v5i1.9204

Abstract

The oil and gas sector is one of the main pillars of the national economy and is currently facing the challenge of declining production, making the enhancement of human resource (HR) quality in the upstream oil and gas industry a strategic necessity. The core problem lies in the absence of optimal synergy between the oil and gas industry and the education sector, as reflected in the mismatch between higher education graduates’ competencies and industry needs, including in the South Sumatra Region (Sumatera Bagian Selatan, Sumbagsel), which comprises South Sumatra, Jambi, Bengkulu, and Bangka Belitung Provinces. This study aims to describe the establishment and role of Migas Center UNSRI as a form of community service in improving oil and gas HR competencies in the Sumbagsel region through collaboration between Universitas Sriwijaya and SKK Migas Sumbagsel. A descriptive qualitative approach was employed to examine the implementation of community empowerment policies and the mapping of upstream oil and gas industry needs at the regional level. The findings show that the collaboration between Universitas Sriwijaya and SKK Migas Sumbagsel resulted in an agreement to establish Migas Center UNSRI as a center for research and training in oil and gas management in South Sumatra. The existence of Migas Center provides the education sector with a clearer picture of industry requirements, including the importance of establishing study centers and certification bodies located in Sumbagsel so that companies do not have to rely on facilities in Java. Conceptually, Migas Center UNSRI is positioned as the forerunner of the establishment of a Petroleum Engineering Department at Universitas Sriwijaya as well as an instrument for strengthening the capacity of local human resources in the oil and gas sector.
Efek Cyclea Barbata Miers terhadap Viskositas Polimer Xanthan Gum untuk Reservoir 70°C Rozi Afdi; Muhammad Rifqi Dwi Septian; Mohamad Obby Adianto
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 2 (2026): May
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i2.1801

Abstract

One method to further enhance oil production is through tertiary recovery, also known as Enhanced oil recovery (EOR). The EOR method can increase production from wells by up to 75% recovery. One of the EOR technologies that has been applied for more than 50 years in the petroleum industry is polymer injection, which has proven effective in improving oil recovery. The objective of this study is to obtain an efficient polymer with good compatibility and viscosity. This research analyzes the compatibility and viscosity characteristics of Xanthan Gum (XG) polymer solutions and a mixture of Xanthan Gum with Cyclea  barbata Miers (CHXG) in formation water with a salinity of 11,000 mg/L. Compatibility tests were conducted at concentrations of 1,000, 2,000, and 3,000 mg/L to determine the solubility of the polymer in formation water. The results show that both types of polymers have good compatibility, indicated by the absence of precipitation and the formation of clear and homogeneous solutions. Viscosity tests were carried out at room temperature and at elevated temperature (70°C) to evaluate the effect of temperature on the rheological properties of the solutions. The XG polymer exhibited a decrease in viscosity at 70°C, with the highest reduction of 24.3% at a concentration of 3,000 mg/L. In contrast, the CHXG polymer showed a significant increase in viscosity at high temperature, with the highest increase reaching 53.49% at the same concentration. These results indicate that the addition of Cyclea  barbata Miers can enhance the thermal stability and viscosity performance of the polymer under reservoir conditions at 70°C, whereas the use of Xanthan Gum alone results in a decrease in viscosity at the same temperature.
Analysis of Compatibility Test of Mesona Palustris (Black Grass Jelly) and Chitosan Solution on Formation Water Saltity Mohamad Obby Adianto; Muhammad Agni Gustama; Ferdian Budi Ar-Rouf
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 7 No. 2 (2026): May
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v7i2.1822

Abstract

The primary purpose of polymer injection is to reduce the water-oil mobility ratio. Commonly used polymers are polyacrylamide and polysaccharides. By increasing the viscosity of the injection fluid, polymer injection can improve sweep efficiency, thereby increasing oil recovery. Petroleum refining relies heavily on macroscopic and microscopic compression efficiency. This study aims to determine the compatibility test results between mesonapalustris and chitosan to determine whether good compatibility test results are obtained. The method used in this study is a laboratory experiment with observation. Compatibility was evaluated based on visual observation and qualitative stability indicators, with no effect across all salinity and concentration ranges. Quantitative indicators showed viscosity retention of >90% at and temperature. This demonstrates the potential of biopolymers as alternative agents in polymer flooding, with an increase in oil recovery of 15–20% OOIP.  Compatibility testing of polymer solutions in formation water is carried out to determine whether the polymer solution is completely soluble in the formation water. The test is carried out by dissolving the polymer in formation water with salinities of 10,000, 15,000, and 20,000 mg/L and polymer concentrations of 500, 1,000, and 2,000 mg/L. The solution is then placed in a bottle and observed for complete dissolution or sedimentation. Based on the results and discussions, experimental laboratory testing of black seaweed jelly and chitosan revealed compatibility results, which showed that all polymer solutions, both black seaweed jelly and chitosan, were compatible with various salinities of formation water, indicating that all polymer solutions were completely dissolved, no precipitation occurred and this suggests potential applicability of biopolymers as alternative agents in polymer flooding.
Co-Authors Afifah, Putri Dwi Ar-rouf, Ferdian Budi Gustama, Muhammad Agni Muhammad Agni Gustama Muhammad Rifqi Dwi Septian Nyimas Ulfatry Utami Robekca Purba Rozi Afdi Utami, Nyimas Ulfatry