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Firdaus - firdaus
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Earth & Planetary Sciences Energy Engineering Mechanical Engineering

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Pengolahan Air Terproduksi Pada Lapangan "FD" Firdaus - firdaus
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol 4, No 1 (2020): Jurnal Offshore : Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.356 KB) | DOI: 10.30588/jo.v4i1.760

Abstract

Proses pemisahan minyak, gas terlarut dan air produksi bersama akan diproses melalui Gas Boot - Wash Tank (Gun Barrel) - Shipping Tank - Clarifeier Tank - WTP Unit - peralatan Balance Tank. Minyak yang telah dipisahkan dari gas terlarut dan air terproduksi akan dialirkan ke tangki pengiriman. Sedangkan air terproduksi yang telah dipisahkan dari minyak dan gas terlarut di Wash Tank dan Gas boot akan dialirkan ke tangki clarifier dan selanjutnya diproses di unit WTP. Peralatan pendukung yang akan digunakan pada WTP Unit adalah Buffer Tank - Electro Coagulant (EC) - DAF Unit (solved air flotation) - Sludge Dewatering Unit - Filter Media - Balance TankPada WTP (Water Treating Plant) ini air akan diolah untuk menghasilkan air yang sesuai dengan baku mutu yang telah ditetapkan berdasarkan Peraturan Menteri Lingkungan Hidup No. 19/2010. Parameter yang harus dipenuhi dalam proses pemisahan ini adalah kandungan oli harus 25 mg /l, kekeruhan yang dihasilkan harus memenuhi kriteria 149 NTU dan tingkat kekerasan di bawah 1 ppm karena jika lebih dari 1 ppm maka air ini akan cenderung membentuk sangat kerak dan korosi. mengganggu di industri perminyakan, TSS yang dihasilkan (Total Suspended Solid) harus memenuhi kriteria 3 mg / l, TDS yang dihasilkan (Total Dissolved Solid) juga harus memenuhi kriteria 5000 mg / dan RPI yang dihasilkan (relative plugging Index) juga harus memenuhi kriteria 10.Parameter air terproduksi yang diolah di unit WTP sudah memenuhi baku mutu, RPI (Relative Plugging Index) yang dihasilkan adalah 2.96 - 6.47. Kekeruhan yang dihasilkan (tingkat kekeruhan air) 1.64 - 6.72 NTU, TSS (Total Suspended Solid) yang dihasilkan 1.3 - 2,66 mg/l, TDS (total padatan terlarut) dihasilkan 4530 - 4910 mg/l, Kandungan minyak (kandungan minyak dalam air) 16,66 - 23,66 mg/l, dan PH 8,39 - 8,83. Kata Kunci : Sistem Gathering, Pengolahan, Air Terproduksi. Abstract The process of separating oil, dissolved gas and co-produced water will be processed through the Gas Boot - Wash Tank (Gun Barrel) - shipping Tank - Clarifeier Tank - WTP Unit - Balance Tank equipment. Oil that has been separated from dissolved gas and produced water will be flowed to the shipping tank. Meanwhile, the produced water that has been separated from the oil and dissolved gas in the Wash Tank and Gas boot will be flowed to the clarifier tank and will be further processed in the WTP unit. The supporting equipment that will be used in the WTP Unit is a Buffer Tank - Electro Coagulant (EC) - DAF Unit (dissolved air flotation) - Sludge Dewatering Unit - Filter Media - Balance TankIn this WTP (water Treating plant) the water will be processed to produce water that is in accordance with the quality standards that have been determined based on the Minister of Environment Regulation No. 19/2010. The parameters that must be met in this separation process are that the oil content must be 25 mg / l , the resulting turbidity must meet the 149 NTU criteria and the hardness level is below 1 ppm because if it is more than 1 ppm then this water will tend to form very scale and corrosion. disturbing in the petroleum industry, the resulting TSS (Total Suspended Solid) must meet the criteria of 3 mg / l, the resulting TDS (Total Dissolved Solid) must also meet the criteria of 5000 mg / and the resulting RPI (relative plugging Index) must also meet the criteria 10.The produced water parameters processed in the WTP unit have met the quality standard, the RPI (Relative Plugging Index) produced is 2.96 - 6.47, the resulting Turbidity (water turbidity level) is 1.64 - 6.72 NTU, TSS (Total Suspended Solid) produced 1.3 - 2.66 mg / l, TDS (total dissolved solid) produced 4530 - 4910 mg / l, Oil content (oil content in water) 16.66 - 23.66 mg / l, and PH 8.39 - 8.83.Keyword : Gathering System, Processing, Produced Water.
Membandingkan Hasil Analisa Data Pressure Build Up Test Dengan Menggunakan Metode Horner dan Simulator Komersil untuk Mengetahui Produktivitas Sumur “Z“ firdaus - firdaus
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol 5, No 1 (2021): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (859.082 KB) | DOI: 10.30588/jo.v5i1.977

Abstract

Abstrak Dalam pengerjaan analisis Pressure Built-Up menggunakan metode Horner untuk sumur minyak dengan menganalisis tekanan transient dapat mengetahui nilai kemiringan hingga karakteristik reservoir. Hasil dari analisis horner kemudian akan dibandingkan dengan hasil analisi simulator komersial.        Pada dasarnya analisa Pressure Built-Up dilakukan pertama-tama dengan memproduksikan sumur selama suatu selang waktu tertentu dengan laju aliran yang tetap (konstan), kemudian menutup sumur tersebut. Penutupan sumur ini menyebabkan naiknya tekanan yang dicatat sebagai fungsi waktu (tekanan yang dicatat ini biasanya adalah tekanan dasar sumur). Tahap-tahapan analisa Pressure Built-Up dengan metode Horner adlah persiapan data pendukung seperti data produksi (tp, q, rw, pwf), data PVT (μ, B, Ct), data reservoir (, h) dan data PBU (Pws, t). Kemudian membuat grafik log-log plot dengan plot Δt vs ΔP. Kemudian membuat grafik semilog plot (Horner plot) dengan plot Pws vs .                Karakteristikreservoir yang dihasilkan pada analisis Horner berupa tekanan reservoir (P*) sebesar 1564.3 psi, permeabilitas (k) sebesar 66.60 md, skin faktor sebesar 10.84, ΔP skin sebesar 308.82 Psi, Ri sebesar 23598.88 ft dan FE sebesar 0.3809. Sedangkan karakteristik reservoir yang dihasilkan pada analisis simulator komersial berupa tekanan reservoir (P* atau Pi) sebesar 1526.46 psi,  permeabilitas (k) sebesar 74.7 md, skin faktor sebesar 10.6, ΔP skin sebesar 275.349 psi. Nilai hasil FE pada simulator komersial tidak dapat diketahui. Dari perbedaan hasil ini dapat diketahui bahwa hasil perhitungan metode horner telah mendekati valid. AbstrackThe execution of pressure Built-Up analysis using the Horner method for oil wells by analyzing transient pressure can find out the slope values to reservoir characteristics. The results of this Horner analysis will then be compared with the result of the simulator commercial analysis.Basicly a Pressure Built Up analysis is done first by pumping wells during a certain time interval with a fixed flow rate, then shut the well. Closure of these wells cause a rise in pressure which is recorded as a  functio of time. Analysis Pressure Built Up stage with Horners methode is the preparation of supporting data such as (tp, q, rw, Pwf), data PVT (μ, B, Ct), reservoir data (h) and data PBU (Pws, t). And than make the log-log graphs plot with plot between vs .Reservoir characteristics resulting from the horner analysis in the form of reservoir pressure (P*) of 1564.3 psi, the permeability of 66.60 md, skin factors of  10.84, ΔP skin of 308.82 Psi, Ri of 23598.88 ft, and FE of . While the reservoir characteristict produced in the Simulator commercial analysis were reservoir pressure (P* or PI) of 1526.46  psi, permeability (k) of 74.7 md, skin factor of 10.6, Ri of ft and ΔPskin of  275.349 Psi. The value of FE in the simulator commercial cannot be detected. From the difference in these results, it can be seen that the calculation results of the Horner method are close to valid.
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