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All Journal Journal of Natural Sciences and Mathematics Research LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI (LPMGB)
Muhammad Thariq Almuqtadir
Pertamina EP Regional 4
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology Physics

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The analysis of Reservoar Porosity Calculation based on Well Log in Bintuni Basin Area Suwondo Suwondo; Warto Utomo; Tati Zera; Muhammad Thariq Almuqtadir
Journal of Natural Sciences and Mathematics Research Vol 8, No 1 (2022): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2022.8.1.11259

Abstract

The  Bintuni Basin is one of several  oil and gas producing basin in Eastern Indonesia.  This basin has one of the hydrocarbon-producing reservoir in the Kais Formation. The carbonate reservoir in Kais Formation is Middle to Upper Miocene age. The understanding of reservoirs is important for further field development. Petrophysical analysis is a method for understanding reservoirs especially  porosity parameter and estimation of hydrocarbon reserve. The data used in study is  well data including, mudlog report, well report, Gamma Ray (GR), Sonic, Resistivity (ILD, ILS, MSFL), density (RHOB) and NPHI logs. The aim study is to analyze the reservoir using Gamma Ray log and porosity calculation using Sonic, RHOB and NPHI logs. The study method includes regional geological literature review, marker analysis, Gamma Ray picking, and reservoir porosity calculations. According to Gamma Ray picking analysis, the Kais Formation GR has values of  GRsand = 25 API and values of GRshale = 80 API. The Low Gamma Ray  below 60 API is interpretated as carbonate reservoir. For porosity validation, the porosity of routine core analysis (RCAL) data is plotted into porosity logs (porosity calculation using Sonic, RHOB and NPHI logs). Based on the porosity calculation using three porosity logs(Sonic, Density, NPHI Logs), the porosity estimated from density log is more match with the porosity of routine core analysis (RCAL) data. According to porosity calculation at WTU Well, the porosity from log density in the Kais Formation has value from 2% - 25%. The porosity in Carbonate  has large value  as a result of secondary porosity.©2022 JNSMR UIN Walisongo. All rights reserved.
Prediksi Tekanan Pori Pada Lapangan Wiriagar Cekungan Bintuni Warto Utomo; Refsi Dian Paparezzi; Muhammad Thariq Almuqtadir
Lembaran publikasi minyak dan gas bumi Vol 56 No 3 (2022)
Publisher : BBPMGB LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/LPMGB.56.3.1204

Abstract

Prediksi tekanan pori menunjang aspek keamanan dan keekonomian kegiatan pengeboran, terlebih jika dilakukan pada litologi batukarbonat dengan tekanan pori beragam formasi yang sama. Cekungan Bintuni adalah salah satu cekungan produktif di Kawasan Timur Indonesia dengan prediksi tekanan pori terbatas pada Formasi Steenkool. Lapangan Wiriagar, Cekungan Bintuni aktif memproduksi minyak bumi dari litologi batukarbonat di Formasi Kais, namun minim prediksi tekanan pori. Prediksi tekanan pori dari data sumur dilakukan untuk mendapatkan kondisi tekanan pori pada Formasi Kais, Lapangan Wiriagar, Cekungan Bintuni. Prediksi tekanan pori menggunakan metode Eaton, dengan nilai eksponensial Eaton untuk data log resistivitas adalah 0,3. Hasil prediksi pada sumur R-3, R-4, R-5, dan RD-1 menunjukkan kondisi tekanan pori normal hidrostatis yang divalidasi dengan plot data berat lumpur, event pengeboran, dan pembacaan gas
Co-Authors Refsi Dian Paparezzi Suwondo Suwondo Tati Zera, Tati Warto Utomo Warto Utomo