Journal of Sustainable Energy Development

Analisis Retention Time Terhadap Pemisahan Fasa Pada Three Phase Separator di Unit Lube Oil Complex (LOC) III

Muhammad Farel Devfara, Hadziqul Abror, Agus Triono — Tue, 24 Dec 2024 00:00:00 +0700

This research analyzes the retention time of the three phase separator in separating oil, water, and gas
phases at PT Pertamina refinery unit IV Cilacap. With an initial retention time ranging from 31 - 34
minutes, there are phases that are still not separated in the separator. This study aims to provide
recommendations for retention time based on unseparated phases and how to apply them to the separator
at the refinery. This study involves three types of lube oil analyzed, namely DAO, MMO, and LMO. The
results show that there is still a difference between the phases at the inlet and outlet which indicates that
the phase separation at the initial retention time is still not optimal so that new retention time
recommendations need to be made. In the type of DAO lube oil with a retention time of 33 minutes with
the largest difference at the inlet and outlet of 0.040. In the type of MMO lube oil with a retention time of
31.2 minutes with the largest difference of 0.037. In the type of LMO lube oil with a retention time of 34.2
minutes with the largest difference of 0.036. After making retention time recommendations based on the
results of the difference between inlet and outlet, the retention time recommendations for DAO are 54.6
minutes, MMO is 51.6 minutes, and LMO is 55.8 minutes. The application of retention time
recommendations for the separator can be done by optimizing the flow rate at 432,439 m3/day or adding
new separator facilities that can accommodate operational volumes of up to 60.4 m3.

Analisis Pengaruh Number of Stages dan Banyak Pompa ESP di Sumur X

Eriska Eklezia Dwi Saputri, Vani — Tue, 24 Dec 2024 00:00:00 +0700

In well X, there has been a decline in oil production, leading to a decrease in the company’s revenue. This is due to an increase in the watercut percentage, as the reservoir itself operates on a water drive mechanism. Therefore, a follow-up action is needed to address this situation by using an artificial lift ESP with a tandem design. This approach aims to enhance the effectiveness and economic efficiency of the production process. The artificial lift Electrical Submersible Pump (ESP) used is a CENTRILIFT with model FC2700, series 400, installed at depths of 6371 ft and 6382 ft, respectively. A comparison of the two artificial lifts shows that the number of stages in the upper section is greater than in the lower section, resulting in a higher oil flow rate at the top, reaching 68.52 STB/d. Meanwhile, in the ESP well, oil flow rate has increased by 77.46 STB/d.

ANALISIS KEBERHASILAN KERJA ULANG PINDAH LAPISAN PADA SUMUR SKW-33 LAPANGAN SUKOWATI

Desyana Nindya Prastiwi, Hadziqul Abror, Babas samudera Hafwandi — Tue, 24 Dec 2024 00:00:00 +0700

This study explores the effectiveness of re-perforation operations at Well SKW-33 in the Sukowati Field to enhance oil production. The background highlights the decline in production rates despite the well's initial success with natural flow since June 2015. The primary objective is to evaluate the impact of re-perforation on oil production and water cut. The research employs methods such as squeeze cementing, Cement Bond Log (CBL) analysis, well logging and subsequent re-perforation. The results demonstrate a significant increase in oil production from 100-150 barrels per day (bopd) to a peak of 305 bopd post-re-perforation. Additionally, the water cut reduced from 95-96% to 80%, indicating a successful reduction in water production. The conclusion asserts that re-perforation significantly boosts short-term oil production and reduces water production, though ongoing management is essential for maintaining long-term efficiency.

Production Performance Analysis to Mature Field Development Plan

Cahyo Tri Raharjo, Riska Laksmita Sari — Tue, 24 Dec 2024 00:00:00 +0700

The research focuses on evaluating the production performance of three oil wells-Well F55A MB, Well Hovea 13 ST1, and Well Pedirka-1-using Inflow Performance Relationship (IPR) and Vertical Lift Performance (VLP) analysis to determine optimal artificial lift methods for each case. The study explores critical production parameters such as reservoir pressure, temperature, and gas-to-oil ratio (GOR) while employing decision tree methodologies to select suitable artificial lift systems. For Well Hovea 13 ST1 and Well Pedirka-1, gas lift installations significantly enhanced oil recovery rates by optimizing injection pressures and valve placements, achieving production gains of 694 and 300 barrels per day, respectively. In contrast, Well F55A MB, characterized by high water cut and lower reservoir temperatures, was deemed unsuitable for artificial lift based on the decision tree analysis, with a stable production of 2832 stb/d. This work highlights the importance of tailored artificial lift strategies for maximizing oil recovery and improving well performance in diverse reservoir conditions.

Analisis Penanggulangan Kadar Gas H2S Pada Aliran Minyak Di Stripper Melalui Penerapan Injeksi Sweetening Gas dan Oil Rate

Lilo Al Fiqriansyah, Hadziqul Abror, Agus Triono — Tue, 24 Dec 2024 00:00:00 +0700

This research evaluates the performance of an existing stripper in handling H₂S content in the oil stream in Sukowati Field, Bojonegoro Regency. With H₂S content ranging from 2-3%, there's a risk of danger and damage to the piping system. The study aims to assess the stripper's performance, propose an optimization scenario for managing H₂S content, and compare the existing stripper's performance with the optimization scenario. The research involved evaluating the stripper from October to December 2023, formulating an optimization scenario, and implementing it in January 2024. Results indicate that the % absorption ratio in the sweetening process averaged 98.99% in the existing stripper and 99.75% in the optimization scenario. The oil rate to sweetening gas ratio averaged 89.31% in the existing stripper and 88.01% in the optimization scenario. The sweetening gas injection to oil rate ratio averaged 10.7% in the existing stripper and 12.0% in the optimization scenario. The optimization scenario reduced H₂S content from 24000 ppm to 60 ppm, meeting standards. Overall, optimizing the oil rate to sweetening gas injection ratio improved H₂S content reduction efficiency in the stripper, with H₂S content at the outlet less than 100 ppm.

EVALUASI KINERJA HEAT EXCHANGER 260E-103 PADA KILANG LUBE OIL COMPLEX III UNIT 260 PT KILANG PERTAMINA INTERNASIONAL RU IV CILACAP

Villia Rian Ashari, welayaturromadhona welayaturromadhona — Tue, 24 Dec 2024 00:00:00 +0700

In the process of processing petroleum, PT Pertamina International RU IV Cilacap is equipped with a heat exchanger as
a supporting tool for the production and processing. Heat exchanger functions as a heat exchange that works with the
principle of heat exchange without mass transfer. The use of heat exchangers that are in extreme environments and are
used for a long period of time to pass fluids, there is a high probability of deposit formation or impurities that can affect
the pressure drop and decrease the performance efficiency of the heat exchanger in terms of heat exchange. Planning for
cleaning must be considered to maintain the performance of the heat exchanger performance so that it remains in optimal
condition. The heat exchanger that will be evaluated in this study is Heat Exchanger 260E-103 at PT Pertamina
International RU IV Cilacap. The research was conducted using quantitative methods through the calculation of fouling
factor, pressure drop, and heat transfer efficiency. The results showed that the Rd value of Heat Exchanger 260E-103 of
LMO was 0.0317 hr ft2 oF/Btu; 0.0058 hr ft2 oF/Btu; 0.0048 hr ft2 oF/Btu, MMO was 0.0193 hr ft2 oF/Btu; 0.0157 hr ft2
oF/Btu; 0.0070 hr ft2 oF/Btu, and DAO of 0.0153 hr ft2 oF/Btu; 0.0193 hr ft2 oF/Btu; 0.0029 hr ft2 oF/Btu. The pressure
drop value of Heat Exchanger 260E-103 of LMO is 12.021 Psi; 10.632 Psi; 10.416 Psi, MMO is 11.077 Psi; 11.108 Psi;
10.435 Psi, and DAO is 14.149 Psi; 13.764 Psi; 13.625 Psi. The efficiency for Heat Exchanger 260E-103 of LMO is
22.81%; 79.47%; 82.16%, MMO is 29.07%; 46.03%; 72.16%, and DAO is 17.43%; 60.06%; 45.04%. The results show
that Heat Exchanger 260E-103 is not suitable for use because it has Rd and pressure drop values exceeding normal
limits, and efficiency is below standard.