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Journal Mechanical Engineering
Published by Politeknik Negeri Ambon
ISSN : -     EISSN : 29884977     DOI : https://doi.org/10.31959
Core Subject : Engineering,
Industrial & Manufacturing Engineering Mechanical Engineering
Manufaktur, Perawatan, Otomotif, Teknik Produksi Migas dan Teknologi Rekayasa Sistem Mekanikal Migas
Arjuna Subject : Teknik (semua kategori) - Mekanik Material
Articles 134 Documents
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Evaluasi Unjuk Kerja Pompa Produk Avtur di Integreted Terminal PT Pertamina Patra Niaga Wayame Ambon Marcelino Pattiasina; Erwin. B. Pattykayhattu; Roy. R. Lekatompessy
Journal Mechanical Engineering Vol. 1 No. 2 (2023): Journal Mechanical Engineering
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i2.1988

Abstract

Performance evaluation for avtur pumps is needed as a review medium to make decisions. Avtur pumps that work continuously will cause a decrease in performance. This can be caused by several factors such as pump age and roughness that cause an increase in head loss. Reduced head loss will affect the power generated and the NPSH value of the pump. The purpose of this study is to determine the increase in Head loss of pump 4B Avtur products at the Integreted Terminal of PT. Pertamina Patra Niaga Wayame Ambon and its effect on the power generated and NPSH value of the pump. This research was conducted quantitatively with 2 variables. Variable free head loss pump 4b avtur product while variable bound pump power and NPSH pump. The data obtained are divided into two types, namely primary data and secondary data. The method used to obtain data is by observation, experimentation and liturature. The results of this study are known that the pump is centrifugal type. There was an increase in pump head loss by 0.128 m. the increase in head loss affected the increase in output power by 0.01 kW or about 100 watts per use. The available NPSH value and the required NPSH value were also affected, which was initially 5.42 > 4.36 to 5.47 > 4.37. The advice given is that the pump must still be considered and improved maintenance and inspection schedules because it is seen from the life of pumps that have worked for more than 10 years. Keyword : head loss, npsh, output power, centrifugal pump
Pengaruh Variasi Ketinggian Elektrikal Stik Out Pengelasan Gas Metal Arc Welding (GMAW) Terhadap Sifat Mekanis Pada Pipa Seamless Imam A Hanifah; Nevada. J. M. Nanulaitta; Graciadiana. I. Huka
Journal Mechanical Engineering Vol. 1 No. 2 (2023): Journal Mechanical Engineering
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i2.1990

Abstract

Welding is a process of joining two or more metal materials together through a local melting process. There are many types of welding, one of which is Gas Metal Arc Welding (GMAW). In gas metal arc welding (GMAW), one of the factors that affect the result of welding is the height of the stick out. The purpose of this study was to determine the effect of changing the height of the stick out in the gas metal arc welding (GMAW) welding process on the pipe on the mechanical strength of the pipe. The method used in this study is a quantitative method with data collection techniques through the library, and the main data sources obtained directly from the research process, and related interviews regarding the tools and materials used at the Ambon State Polytechnic Mechanical Engineering Laboratory. The results of the research that the author did show that the greatest Impact Strength with a value of 0.1136 KJ/mm2 is at a height of 7 mm electrical stick out and 0.0960 KJ/mm2 is at a height of 9 mm electrical stick out, this can be seen in the figure 4.1 and 4.2 where the graph will have a decreasing trend with increasing variations in the height of the electrical stick out in GMAW welding, while for the bending test the shorter the electrical stick out will result in increased welding penetration, so that the melting of the weld material in the welding process is getting deeper and the cooling process is getting deeper time results in increased ductility of the seamless pipe, it also depends on the thickness of the material being welded, the gas flow rate and metal transfer in the weld. Keywords : GMAW Welding, Stick Out, Mechanical Properties, Seamless Pipe, Impact Test, Bending Test
Evaluasi Dan Optimasi Pompa Angguk Untuk Meningkatkan Laju Produksi Minyak Pada Sumur XY PT. Pertamina Ep Field Cepu Marthen Natasian; Purnomosidi Purnomosidi; Jeffrie J Malakauseya
Journal Mechanical Engineering Vol. 1 No. 2 (2023): Journal Mechanical Engineering
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i2.1991

Abstract

This research was conducted to optimize the production of oil and gas wells using the artificial lift method with a Sucker Rod Pumo in the Kawengan Field, PT Pertamina EP Field Cepu. The evaluation was carried out on the performance of the installed Sucker Rod Pump in well XY. The creation of the Inflow Performance Relationship curve was done independently and using commercial software. Similarly, the Tubing Performance Relationship curve for the well was created. Based on the evaluation conducted by the author on well XY, the actual production rate is 1241 barrels per day (BLPD) and the efficiency of the intalled Sucker Rod Pump is 47,77%. Therefore, in this case, the condition of the installed Sucker Rod Pump is considered suboptimal. Consequently, optimization was carried out on th installed Sucker Rod Pump using a Nodal Analysis simulator, which resulted in the optimization of the Sucker Rod Pump series to increase the production rate in well XY to 30-275 thousand hours of operation (THM) with a flow rate of 882,95 BLPD, well flow pressure of 574,11 psia, and pump speed of 11 strokes per minute (spm). Keywords: Artificial lift, Sucker Rod Pump, Evaluation, Optimization, Nodal Analysis
Evaluasi Performa Produksi Dan Electrical Submersible Pump (Esp) Terpasang Pada Sumur X Di Lapangan Y Mitha Tambunan; Diyah Rosiani; Kristofol Waas
Journal Mechanical Engineering Vol. 1 No. 2 (2023): Journal Mechanical Engineering
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v1i2.1992

Abstract

Well X is one of the oil wells located in field Y that has been producing using artificial lift. Well X has changed the artificial lift from SRP to ESP to optimize the well production rate due to a decrease in production. Electrical submersible pump is a multistage centrifugal pump with several impellers and diffusers at each stage. The current pump data uses 21 stages and a frequency of 45 Hz with an oil production rate of 7.1 bopd and a water cut of 99%. The well production capacity known by using IPR is 4542.436 bfpd. From the production history data, the author calculates the remaining reserves that can be produced until the q-limit with the Decline Curve Analysis (DCA) method. Next, an evaluation of the installed ESP pump is conducted using the pipesim simulator. This evaluation involves nodal analysis and sensitivity testing to assess the pump performance and optimize the flowrate production. The analysis results show the remaining reserves that can be produced are 2043 MSTB. Sensitivity tests on tubing size, stages, and frequency indicated that the pump operates optimally with a tubing size of 2.992 inches, 21 stages, and a frequency of 45 Hz, resulting in a production rate of 3503.85 STB/d at a pressure of 88.86 psi. The research result show that the ESP pump operates optimally, and the use of ESP has been proven to increase the production rate from 3133,4 STB/d to 3503,85 STB/d.  Keywords : DCA, ESP, nodal analysis, optimum production  

Page 14 of 14 | Total Record : 134

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