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LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Published by LEMIGAS
ISSN : 20893396     EISSN : 25980300     DOI : DOI: https://doi.org/10.29017/LPMGB.60.1.2018
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LPMGB aims the dissemination of information on research activities, technology engineering development and laboratory testing in the oil and gas field. Manuscripts in English are accepted from all in any institutions, college and industry oil and gas throughout the country and overseas.
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Articles 5 Documents
 1 
Search results for , issue "vol 59 no 2 (2025)" : 5 Documents clear
Analisis Pengaruh Temperatur, pH dan Laju Alir Terhadap Pembentukan Scale Mawar Marbun; Nijusiho Manik, S.T., M.T; Abdul Gafar Karim
Lembaran publikasi minyak dan gas bumi Vol 59 No 2 (2025)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.59.2.1785

Abstract

The LMN-47 well has the highest scale formation potential compared to other wells in the X field with the highest Scale Index value of 1.39. The condition of this well is also different because the scale formation only occurs in the tubing perforate compared to other wells where scale formation occurs in all pump circuits. The scale formation mechanism is closely related to the content of the formation water and is influenced by temperature, pH, and flow rate parameters. Therefore, testing is needed to determine the scale formation with temperature, pH, and flow rate parameters that are in accordance with the actual conditions in the well through a scale simulator tool. From the simulation on the scale simulator tool designed with a flow rate of 15.2279 liters/minute, pH 7.99 and temperature 56.29 oC, 6.14 grams of carbonate scale (CaCO3) were formed. The results of the analysis proved that the higher the temperature, the faster the growth rate of carbonate scale (CaCO3), the more alkaline the pH, the faster the scale will grow, as well as the flow rate which is directly proportional to temperature and pH.
Evaluasi Primary Cementing Pada One Phase Well Pada Sumur Gelagah 01 Lapangan Tunjuk Nur Suhascaryo; I Komang Nik Bhasika Kumara; Anton Budi Prasetyo
Lembaran publikasi minyak dan gas bumi Vol 59 No 2 (2025)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.59.2.1803

Abstract

Tujuan dari operasi penyemenan adalah untuk melekatkan casing pada dinding lubang sumur. Sumur “Gelagah 01” merupakan sumur minyak yang terletak di lapangan Tunjuk. Pada lapangan ini terletak pada cekungan sumatera yang terdiri dari cekungan Palembang selatan. Penyemenan pada sumur “gelagah 01” dilakukan pada sumur one phase well merupakan metode pengeboran satu tahap (one-section) yang menggunakan divertermode dari permukaan hingga kedalaman target reservoir. Evaluasi penyemenan pada sumur “Gelagah 01”dengan metode penyemanan poor boy merupakan penyemenan yang sederhana tanpa menggunakan top plug dan bottom plug dilakukan pada casing intermediate 9 5/8 inch dan single stage dual slurry merupakan penyemenan yang diawali dengan bottom plug dilanjutkan dengan menginjeksikan lead slurry, tail slurry, top plug setelah itu dilanjutkan displacement agar mendorong semen agar sampai ke annulus dilakukan pada casing 7 inch . Evaluasi penyemenan yang diawali dengan perencanaan slurry yang meliputi perhitungan volume slurry dan displacement, perencanaan additive dan komposisi yang digunakan dan perencanaan displacement proses yang meliputi placement duration dan dilakukan analisa CBL (cement bond log) dan USIT (ultra sonic imager tool. Dengan hasil CBL dan USIT dapat mengetahui secara kuantitatif dan kualitatif kualitas melekatnya semen pada lubang sumur. Pada sumur gelagah 01 lapangan tunjuk terdapat problem seperti microannulus, channeling dan freepipe yang disarankan untuk melakukan remedial cementing
Potensi Mineral Silika Pulau Rupat sebagai Proppant Alami Berdasarkan Kriteria API 19C Novrianti; Rezi Indra; Dike Fitriansyah Putra; M. Ridha Fikri
Lembaran publikasi minyak dan gas bumi Vol 59 No 2 (2025)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.59.2.1810

Abstract

This study evaluates the suitability of silica sand from Rupat Island, Indonesia, as a natural proppant candidate for hydraulic fracturing applications, based on API RP19C specifications. The investigation involved three samples: unmodified silica sand, 5 % resin-coated sand, and 10 % resin-coated sand. Key properties assessed include roundness and sphericity, bulk density, turbidity, acid solubility, and crush resistance. The results show a significant improvement in roundness and sphericity with resin coating, with the 10 % coated sample reaching a value of 0.7—meeting the API minimum requirement of >0.6. All samples exhibited bulk density values exceeding the API minimum of 1.5 g/cc, specifically 1.53 g/cc, 1.58 g/cc, and 1.60 g/cc, respectively. Turbidity values were also low, ranging from 20 to 38 NTU, well below the API limit of 250 NTU. Acid solubility decreased with increasing resin fraction, from 2.8 % (uncoated) to 2 % and 1.2 %, all within the acceptable API limit of <3 %. In the crush resistance test using 40/70 mesh, all samples demonstrated acceptable levels of particle degradation: 6.7% at 2000 psi for uncoated sand, and 9 % and 8 % at 6000 psi for resin-coated samples—each remaining below the API maximum of 10 %. These findings suggest that Rupat Island silica sand, when modified with resin coating, holds strong potential as an alternative proppant for hydraulic fracturing operations.
Perbandingan Metode GC-FID dan FTIR-ATR Untuk Penentuan Kadar Biodiesel Dalam Biosolar Handajaya Rusli; Annisa Efendi; Sylvia Ayu Bethari
Lembaran publikasi minyak dan gas bumi Vol 59 No 2 (2025)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.59.2.1852

Abstract

Biodiesel di Indonesia umumnya berasa dari ester metil asam lemak yang diproduksi dari minyak sawit. Biodiesel telah digunakan sebagai bahan baku dalam produksi biosolar. Saat ini, Indonesia menerapkan B40 yang berarti dalam biosolar terkandung 40 %(v/v) biodiesel. Kandungan biodiesel dapat dianalisa menggunakan Nuclear Magnetic Resonance (NMR), Kromatografi Gas (GC), dan spektroskopi Fourier Transform Infra Merah (FTIR). Saat ini peralatan komersial untuk menentukan komposisi biosolar menggunakan prinsip FTIR. Pada penelitian telah dilakukan pengukuran biodiesel dalam biosolar menggunakan metode FTIR-ATR dan GC-FID. Penelitian dilakukan menggunakan masing-masing dua jenis biodiesel dan dua jenis minyak solar yang dikombinasikan menghasilkan empat variasi berbeda. Penentuan kadar biodiesel dengan metode FTIR-ATR dilakukan berdasarkan luas serapan gugus karbonil (C=O) di 1742 cm-1 yang berasal dari biodiesel. Data yang diperoleh dari hasil análisis menggunakan FTIR-ATR diolah menjadi tiga set bilangan gelombang, yaitu 1692 – 1800 cm-1, 1700 – 1800 cm-1, 1670 – 11851 cm-1 sesuai standar ASTM D7371-14(2022) dan rentang 1726 - 1776 cm-1. Analisis menggunakan metode GC-FID dilakukan dengan menggunakan metil heksadekanoat sebagai puncak acuan. Hasil pengolahan data menunjukkan bahwa analisis menggunakan GC-FID memberikan linearitas dan akurasi lebih baik pada rentang kadar 1 – 50 %(v/v) biodiesel dalam biosolar.
Pengaruh Pemakaian Demulsifier A Dan B Terhadap Crude Oil Lapangan KB Dengan Metode Bottle Test: Demulsifier Using Bottle Test Method Erik Indra Putra
Lembaran publikasi minyak dan gas bumi Vol 59 No 2 (2025)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.59.2.1853

Abstract

The stability of water-in-crude oil emulsions poses a significant challenge in oil production and refining processes, particularly in KB Field, which exhibits highly stable emulsion characteristics. This study aims to evaluate the effectiveness of two types of demulsifiers—Demulsifier A and Demulsifier B—in separating water from crude oil emulsions using the bottle test method. Tests were conducted at varying concentrations (0, 200, 300, and 400 ppm), with analysis of water drop and Sediment and Water (S&W) values across two sample zones: top cut and mix cut. Results indicate that Demulsifier A demonstrates superior performance, reducing S&W values to as low as 0.2% at 400 ppm, while Demulsifier B shows stagnation at higher concentrations. These findings contribute to the selection of more efficient chemical agents for demulsification processes and support the development of more sustainable and cost-effective production strategies. The study also highlights the importance of quantitative approaches in demulsifier evaluation, which remain limited in local literature.

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