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The Use of Modified Rock Physics Template to Monitor Fluid Saturation in Carbonate Reservoir

Scientific Contributions Oil and Gas · Vol. 48 No. 2 (2025) · hlm. 217–237

DOI
10.29017/scog.v48i2.1749
ISSN
2541-0520, 2089-3361
Terbit
2025-08-20
Penerbit
Testing Center for Oil and Gas LEMIGAS
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

Rock physics template (RPT) is defined as a crossplot of acoustic impedance (AI) against the ratio of P- and S-wave velocities that is used for lithology and pore-fluid interpretation of well log data and/or pre-stack seismic inversion results. This study is employing an interactive RPT approach, which facilitates calibration using available data and enhances the interpretation and prediction of pore fluids within carbonate reservoir rocks. A previously established RPT model is modified to construct the rock physics template and to interpret trends in porosity and fluid saturation within a predictive framework. The modified approach to the RPT formulation demonstrates that the proposed model yields more accurate porosity and fluid saturation trends for the reservoir rocks in the study area than the previous RPT model, as evidenced by the theoretical curves in the Rock Physics Template (RPT) domain. To predict fluid saturation, a workflow is developed to build the modified RPT model that incorporates the Curved Pseudo Elastic Impedance (CPEI) and the Pseudo Elastic Inversion for Lithology (PEIL) attributes. These attributes are used to regulate the fluid saturation and density values in the model space and to assist in constructing the RPT model. The proposed method is also applied to monitor fluid saturation changes in oil, gas, or CO₂ cases, utilizing the Vp/Vs ratio and acoustic impedance derived from the seismic inversion data, and allows calibration with available datasets such as well logs and cores.

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  • Bandung Institute of Technology
  • Pertamina (Indonesia)
  • Universitas Pembangunan Nasional Veteran Yogyakarta
  • Universitas Pertamina
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Rekan penulisOrganisasiArtikel bersama
Yatini YatiniUniversitas Pembangunan Nasional Veteran Yogyakarta2
Agus LaesanpuraBandung Institute of Technology2
Budi SulistijoBandung Institute of Technology2
Wawan Gunawan A. KadirBandung Institute of Technology2
Wahyudi Widyatmoko ParnadiBandung Institute of Technology2
Eko Januari WahyudiBandung Institute of Technology1
Susanti AlawiyahBandung Institute of Technology1
Warsa WarsaBandung Institute of Technology1
Hendra GrandisBandung Institute of Technology1
Setianingsih SetianingsihBandung Institute of Technology1
Fatkhan FatkhanBandung Institute of Technology1
Widodo WidodoBandung Institute of Technology1
Farkhan RaflesiaBandung Institute of Technology1
Susanti AwaliyahBandung Institute of Technology1
Rachmat SuleBandung Institute of Technology1
Junita Trivianty MusuAfiliasi tidak diketahui1
Asep Kurnia PermadiBandung Institute of Technology1
Oki HedrianaBandung Institute of Technology1
Dewi MersitariniPertamina (Indonesia)1
Dimas ArdiyantaPertamina (Indonesia)1
Sofyan SumarnaUniversitas Pertamina1
Ekkal DinantoBandung Institute of Technology1
Muhammad Raihan UlilBandung Institute of Technology1
Wahyu TriyosoBandung Institute of Technology1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.lemigas.esdm.go.id/index.php/SCOG/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">The Use of Modified Rock Physics Template to Monitor Fluid Saturation in Carbonate Reservoir</dc:title>
	<dc:creator xml:lang="en">Ryannugroho, Riskiray</dc:creator>
	<dc:creator xml:lang="en">Winardhi, Sonny</dc:creator>
	<dc:creator xml:lang="en">Santoso, Djoko</dc:creator>
	<dc:creator xml:lang="en">Rachmat Sule, Mohammad</dc:creator>
	<dc:creator xml:lang="en">Pranatikta, Krishna Agra</dc:creator>
	<dc:creator xml:lang="en">Lawrens Hutapea, Fernando</dc:creator>
	<dc:creator xml:lang="en">Sita Ambarsari, Dona</dc:creator>
	<dc:subject xml:lang="en">rock physics template</dc:subject>
	<dc:subject xml:lang="en">carbonate reservoir</dc:subject>
	<dc:subject xml:lang="en">porosity</dc:subject>
	<dc:subject xml:lang="en">fluid saturation</dc:subject>
	<dc:description xml:lang="en">Rock physics template (RPT) is defined as a crossplot of acoustic impedance (AI) against the ratio of P- and S-wave velocities that is used for lithology and pore-fluid interpretation of well log data and/or pre-stack seismic inversion results. This study is employing an interactive RPT approach, which facilitates calibration using available data and enhances the interpretation and prediction of pore fluids within carbonate reservoir rocks. A previously established RPT model is modified to construct the rock physics template and to interpret trends in porosity and fluid saturation within a predictive framework. The modified approach to the RPT formulation demonstrates that the proposed model yields more accurate porosity and fluid saturation trends for the reservoir rocks in the study area than the previous RPT model, as evidenced by the theoretical curves in the Rock Physics Template (RPT) domain. To predict fluid saturation, a workflow is developed to build the modified RPT model that incorporates the Curved Pseudo Elastic Impedance (CPEI) and the Pseudo Elastic Inversion for Lithology (PEIL) attributes. These attributes are used to regulate the fluid saturation and density values in the model space and to assist in constructing the RPT model. The proposed method is also applied to monitor fluid saturation changes in oil, gas, or CO₂ cases, utilizing the Vp/Vs ratio and acoustic impedance derived from the seismic inversion data, and allows calibration with available datasets such as well logs and cores.</dc:description>
	<dc:publisher xml:lang="en">Testing Center for Oil and Gas LEMIGAS</dc:publisher>
	<dc:date>2025-08-20</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.lemigas.esdm.go.id/index.php/SCOG/article/view/1749</dc:identifier>
	<dc:identifier>10.29017/scog.v48i2.1749</dc:identifier>
	<dc:source xml:lang="en">Scientific Contributions Oil and Gas; Vol. 48 No. 2 (2025); 217-237</dc:source>
	<dc:source xml:lang="id">Scientific Contributions Oil and Gas; Vol 48 No 2 (2025); 217-237</dc:source>
	<dc:source>2541-0520</dc:source>
	<dc:source>2089-3361</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.lemigas.esdm.go.id/index.php/SCOG/article/view/1749/1403</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 © Copyright by Authors. Published by LEMIGAS</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by/4.0</dc:rights>
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