scholarly journals MENENTUKAN FORECAST PRODUKSI SUMUR DAN MENGHITUNG ORIGINAL OIL IN PLACE DENGAN METODE STRAIGHT LINE MATERIAL BALANCE RESERVOIR MINYAK PADA LAPANGAN Y

PETRO ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 158
Author(s):  
Bonifasius Aristomo Haryo Adi ◽  
Onnie Ridaliani ◽  
Rida Husla
Keyword(s):  
Material Balance ◽  
Curve Analysis ◽  
Test Method ◽  
Recovery Factor ◽  
Decline Curve Analysis ◽  
Decline Curve ◽  
Straight Line ◽  
Production Activity ◽  
Chisquare Test ◽  
Original Oil In Place

<p><em>The purpose of calculating the Original Oil In Place (OOIP) is to know the potential of reservoir to be produced. Calculation of OOIP in field Y based on determining the type of drive mechanism at the beginningfollowed by calculation the value of Underground Withdrawal and parameters of fluid expansion. All parameters then used to draw the graphic using Havlena and Odeh Method. The value of OOIP is </em>354,766 MMSTB<em>.</em></p><p><em>Along with the time and production activity, the OOIP will be reduced. Therefore it is important to forecast the production itself. Constant Decline is determined using Trial Error and X<sup>2</sup> Chisquare Test Method with value of constant decline b = 0 and decline rate 0,01855. This means that the type of decline curve is exponential curve. This type of decline curve is used to forecast the production until q economic limit. As a result, the value of Estimated Ultimated Recovery is 296,0386 MMSTB, Recovery Factor 83,4461%, and Remaining Reserve 51,9415 MMSTB</em>.<em></em></p><p align="center"> </p><p>Keyword: <em>Original Oil In Place</em>, <em>Decline Curve Analysis, material balance straight line, Recovery Factor, Remaining Reserve</em></p><p> </p>

scholarly journals PENENTUAN ISI AWAL MINYAK DI TEMPAT DENGAN METODE VOLUMETRIK DAN MATERIAL BALANCE GARIS LURUS HAVLENA-ODEH DAN PERKIRAAN PRODUKSI ZONA ENH PADA LAPANGAN X

PETRO ◽  
2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Eoremila Ninetu Hartantyo ◽  
Lestari Said
Keyword(s):  
Material Balance ◽  
Curve Analysis ◽  
Volumetric Method ◽  
Balance Method ◽  
Production Performance ◽  
Decline Curve Analysis ◽  
Water Influx ◽  
Decline Curve ◽  
Original Oil In Place ◽  
Material Balance Method

<div class="WordSection1"><p><em>The purpose of this thesis is to calculate the original oil in place of ENH zone in X field. There are two methods to calculate the original oil in place of ENH zone, which is volumetric method and material balance method. From the calculation of original oil in place of ENH zone using volumetric method is 5.860.310 STB.</em></p><p><em>In Havlena - Odeh straight line material balance method needs the number of water influx. The water influx can be determine using Van-Everdingen Hurst method. The constant number of water influx of ENH zone is 311 BBL/psia. The original oil in place calculation of ENH zone using material balance method is 6.000.000 STB. Decline curve analysis is a method to determine the production performance and estimate ultimate recovery (EUR). By knowing the economic limit rate of ENH zone at 40 BOPD, it can be searched the oil rate and cumulative oil production of ENH zone. The economic limit rate of ENH is reached in March 2019 with recovery factor at 57,95%.</em></p><p><em>Keywords: original oil in place, volumetric, material balance, decline curve analysis</em></p></div>

Reserves Evaluation of Dry Gas Reservoirs through Flowing Pressure Material Balance Method

2014 ◽  
Author(s):  
J.D.. D. Guzman ◽  
J.A.. A. Arevalo ◽  
O.. Espinola
Keyword(s):  
Material Balance ◽  
Curve Analysis ◽  
Pressure Data ◽  
Gas Reservoirs ◽  
Standard Methods ◽  
Decline Curve Analysis ◽  
Decline Curve ◽  
Conventional Material ◽  
Material Balance Method ◽  
Gas Fields

Abstract This paper describes the practical applicacion of a method known as Flowing Gas Material Balance FGMB (L. Mattar and Mcneil, 1997) for reserve's estimation using bottomhole flowing pressure data in two dry gas fields in Mexico. The main purpose of this work is to apply the method in real cases having enough data and make a comparison with other standard methods of reserves estimation (J. Lee, 1996 and G.J. DeSorcy, 1994) such as Volumetric, Decline Curve Analysis, Conventional Material Balance and Numerical Simulation to see the results and validate the efficacy of its application. There are some premises should be considered before its application that will be explained, besides the advantages and results of this comparison which showed differences no greater than 10% with respect to the method more trustable to report reserves for these reservoirs.

scholarly journals Comparative Study of Oil Production Forecast by Decline Curve Analysis and Material Balance

2018 ◽  
Vol 3 (4) ◽  
pp. 19
Author(s):  
Charley Iyke Anyadiegwu ◽  
Nnaemeka Princewill Ohia
Keyword(s):  
Comparative Analysis ◽  
Flow Rate ◽  
Material Balance ◽  
Curve Analysis ◽  
Constant Flow ◽  
Production Forecast ◽  
Constant Flow Rate ◽  
Decline Curve Analysis ◽  
Decline Curve ◽  
Exponential Method

Comparative analysis of forecast of rate of production of oil from a reservoir using decline curve analysis and material balance was presented. The data for reservoir A located Southeast, Nigeria was obtained for the study. The analysis on the well using decline curve analysis showed that the rate of production from the well over the years followed an exponential method of decline. The rate of production of the well was predicted to be 158 stb/day in 2020. The second analysis on the well was performed using material balance with MBAL. The rate of production of the well was predicted to be 411.984 stb/day in 2020. It was also read from MBAL that the well will have a constant flow rate from the 20th year to the 31st year of the producing life of the well which is 2020. It is seen that the values of rates of production gotten from the prediction analyses of the well using the two methods of analysis differ. The rate in 2020 was predicted to be 158 stb/day using decline curve analysis and 411.984 stb/day using material balance

scholarly journals PERHITUNGAN ISI AWAL MINYAK DI TEMPAT DAN PERHITUNGAN RECOVERY FACTOR SEBELUM DAN SESUDAH INJEKSI AIR PADA RESERVOIR ALFA

PETRO ◽  
2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Lestari Said ◽  
Margareht Sri Wahyuni
Keyword(s):  
Material Balance ◽  
Recovery Factor ◽  
Decline Curve ◽  
Exponential Decline ◽  
Secondary Recovery ◽  
Rate Of Decline ◽  
Original Oil In Place ◽  
Solution Gas

<p>Dilakukan perhitungan isi awal minyak di tempat atau original oil in place (OOIP) dan recovery factor sebelum dan sesudah injeksi air pada reservoir Alfa. Pada perhitungan OOIP digunakan dua metode, yaitu metode volumetrik dan material balance garis lurus. Sebelum melakukan perhitungan OOIP dengan metode material balance garis lurus, jenis mekanisme pendorong harus terlebih dahulu diketahui untuk menentukan grafik yang digunakan dalam metode material balance garis lurus. Metode penentuan jenis mekanisme pendorong, yaitu metode perhitungan drive index dan  Ganesh Thakur,.  Sedangkan untuk menghitung recovery factor sebelum dan sesudah injeksi digunakan analisa decline curve yang dilakukan secara dua tahap, yaitu tahap primary recovery dan secondary recovery (injeksi air). Analisa decline curve ditentukan dengan menggunakan status sumur produki aktif yang relatif konstan Jenis exponent decline (b) yang dipilih adalah exponential decline curve, dengan nilai rate of decline (Di) telah otomatis terhitung saat penarikan garis decline dengan  software OFM.</p><p> </p><p>Hasil perhitungan OOIP dengan menggunakan metode volumetric adalah sebesar 75.63 MMSTB dan untuk metode material balance garis lurus adalah sebesar 78.5 MMSTB. Sedangkan jenis mekanisme pendorong dari reservoir Alfa  adalah solution gas drive.Dan hasil analisa decline curve pada tahap primary recovery menunjukan bahwa reservoir Alfa  dapat berproduksi hingga 31 Mei 2012 dengan nilai Estimate Ultimate Recovery sebesar 24514.1 MSTB, dan Recovery Factor sebesar 31.32%. Sedangkan untuk tahap secondary recovery menunjukkan bahwa reservoir Alfa dapat berproduksi hingga 31 Maret 2022 dengan nilai Estimate Ultimate Recovery sebesar 781.314 MSTB, dan Recovery Factor sebesar 1%.</p>

scholarly journals Perbandingan Analisis Decline Curve antara Metode Trial Error dan Decline Type Curve Matching Untuk Menentukan Cadangan Minyak Sisa

2016 ◽  
Vol 5 (2) ◽  
pp. 33-43
Author(s):  
Guntur Setiawan
Keyword(s):  
Production Rate ◽  
Curve Analysis ◽  
Curve Matching ◽  
Type Curve ◽  
Decline Curve Analysis ◽  
Decline Curve ◽  
Exponential Decline ◽  
Chisquare Test ◽  
Production Period ◽  
Error Method

Decline curve analysis often used to determine remaning reserves in a reservoir. To analyze with this method, the decline type curve from production period (trend) must be known. To determine decline type curve, in this paper will use two methods there are: trial error & x2 chisquare test and decline type curve matching. Both of methods have different way to determine decline type curve. Trial error done by making tabulation and calculation, while decline type curve matching done by overlay. The calculation are aimed to determine decline type curve, Remaining Reserves (RR) and Estimate Ultimate Recovery (EUR). Analysis done by taking sample of data well X which is a new well produced since September 2013 till the last data is Febuary 2016. First step of this study done by making type curve from equations and assumptionin literature then plot production rate vs time and choose production period (trend) to be analyzed. After that, determine decline type curve by trial error and decline type curve matching and do forecast until get remaining reserves and estimated ultimate recovery if economic limit rate production known. From calculation of both methods, resulted exponential decline type curve. For the error method obtained RR  41322,3 STB and EUR 240328,9 STB, while for decline type curve matching obtained RR 40534,2 STB and EUR 239540,8 STB

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