Evaluasi Orifice Plate Untuk Pengukuran Aliran Gas Di Separator Test Pada Perusahaan Minyak Dan Gas

Nadila, Aulia (2021) Evaluasi Orifice Plate Untuk Pengukuran Aliran Gas Di Separator Test Pada Perusahaan Minyak Dan Gas. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Orifice Meter adalah suatu alat yang sangat penting dalam dunia industri terutama pada bidang oil and gas. Kegunaan orifice meter ini yaitu mengukur perbedaan tekanan dari sisi upstream (sebelum melewati orifice plate) dan downstream (setelah melewati orifice plate). Diantara sisi upstream dan downstream terdapat komponen utama dari orifice meter yaitu orifice plate. Aliran dalam sisi upstream ini yang akan membenturkan fluida nya ke orifice plate sehingga terjadi perbedaan tekanan yang nantinya menghasilkan nilai pressure suatu fluida yang masuk. Pada Tugas Akhir ini, orifice meter yang akan ditinjau yaitu milik perusahaan minyak dan gas. Saat ini, orifice meter yang dipasang memiliki kelemahan yaitu pembacaan differential pressure (Ch) yang tidak akurat karena adanya pergantian Artificial Lift dari Gas Lift ke Electrical Submersible Pump yang membuat terjadinya perbedaan tekanan sehingga harus melakukan perancangan/pembaharuan/penggantian ukuran orifice plate dengan ukuran yang tepat. Oleh karena itu, penelitian ini dilakukan untuk melakukan adanya perancangan ulang orifice meter dengan diameter akurat dan disimulasikan dengan menggunakan software Computational Fluid Dynamics (CFD). Dari hasil penelitian, dapat disimpulkan bahwa diameter 1.375 adalah yang paling akurat karena di flow rate 200 nilai differential pressure nya 3.09, flow rate 300 nilai differential pressure nya 4.64, flow rate 400 nilai differential pressure nya 6.18, flow rate 500 nilai differential pressure nya 7.73, dan flow rate 600 nilai differential pressure nya 9.28.
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Orifice Meter is a very important tool in the industrial world, especially in the oil and gas field. The use of this orifice meter is to measure the difference in pressure from the upstream (before passing the orifice plate) and downstream (after passing the orifice plate). Between the upstream and downstream sides there is the main component of the orifice meter, namely the orifice plate. This flow on the upstream side will bump the fluid into the orifice plate so that there is a pressure difference which later results in the pressure value of the incoming fluid. In this final project, the Orifice Meter that will be reviewed belongs to oil and gas company. At present, the installed Orifice Meter has a weakness, namely the inaccurate differential pressure (Ch) reading due to a change in Artificial Lift from Gas Lift to ESP which causes a pressure difference so that the orifice size must be designed / updated / replaced with the right size. Therefore, this research was conducted to redesign the orifice meter with accurate diameter and simulated using CFD software. From the research results, it can be concluded that the diameter of 1.375 is the most accurate because at the flow rate of 200 the differential pressure value is 3.09, the flow rate 300 is the value of the differential pressure is 4.64, the flow rate is 400 the value of the differential pressure is 6.18, the flow rate 500 is the value of the differential pressure is 7.73, and the flow rate 600, the differential pressure value is 9.28.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Orifice Meter, CFD, differential pressure, Orifice Meter, CFD, differential pressure.
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC173 Orifices. Nozzles. Jets
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Aulia Nadila
Date Deposited:	06 Mar 2021 07:26
Last Modified:	06 Mar 2021 07:26
URI:	http://repository.its.ac.id/id/eprint/83668

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