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Irreducible Water Saturation And Its Governing Factors: Characteristics Of Some Sandstones In Western Indonesia

Scientific Contributions Oil and Gas · Vol. 34 No. 1 (2022) · hlm. 19–34

DOI
10.29017/SCOG.34.1.788
ISSN
2541-0520, 2089-3361
Terbit
2022-02-15
Penerbit
Testing Center for Oil and Gas LEMIGAS
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

Irreducible water saturation (Swirr) plays a very significant role in the estimation of hydrocarbon in place and reserves. Inaccurate Swirr and lack of knowledge for judging its accuracy may result in erroneous and misleading reserve estimates along with its consequences. This study is basically aimed at understanding of Swirr characteristics of reservoir sandstones in some fields in western Indonesia. For the study, data obtained from 1,334 core samples – taken from 78 fields in 10 sedimentary basins – is used. Observations and investigations are made in sedimentary basin, field, and formation scales. The main finding is that rock wettability plays a very significant factor in determining Swirr characteristics, in a manner more than what rock pore types and configuration do. Its variation – be it contrasting or difference in strength – influences the Swirr characteristics in its relation to rock permeability. It is also found that geological similarity and geographical proximity do not have effects on Swirr characteristics unless they directly affect the rock’s overall wettability. This occurs not only at higher scale of sedimentary basin but also at lower levels of field and rock formations. The study also produces permeability - Swirr correlations for both sedimentary basins and rock formations levels. The overall results of this study is an understanding that gross simplification in assuming reservoir general wettability has to avoided in order to prevent erroneous picture over a field’s most representative Swirr characteristics.

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  • National Research and Innovation Agency
  • Hasanuddin University
  • Universitas Merdeka Madiun
  • University of Indonesia
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Rekan penulisOrganisasiArtikel bersama
Junita Trivianty MusuAfiliasi tidak diketahui7
Fakhriyadi SaptonoAfiliasi tidak diketahui5
Suliantara SuliantaraNational Research and Innovation Agency4
Herru Lastiadi SetiawanNational Research and Innovation Agency4
Heru AtmokoAfiliasi tidak diketahui4
Tri Muji SusantoroNational Research and Innovation Agency3
Suprajitno MunadiAfiliasi tidak diketahui2
Ridwan RidwanHasanuddin University2
Kosasih KosasihAfiliasi tidak diketahui2
Merkurius. F. MendrofaAfiliasi tidak diketahui2
Djoko SunarjantoNational Research and Innovation Agency2
Mohamad RomliNational Research and Innovation Agency2
Diana DwiyanartiNational Research and Innovation Agency2
Aziz Masykur LubadAfiliasi tidak diketahui2
Herizal HerizalNational Research and Innovation Agency2
Nurkamelia NurkameliaNational Research and Innovation Agency2
Sunting KepiesNational Research and Innovation Agency2
Jonathan Setyoko HadimuljonoAfiliasi tidak diketahui1
Julikah JulikahAfiliasi tidak diketahui1
Desi YensusminarAfiliasi tidak diketahui1
Ongki Ari PrayogaAfiliasi tidak diketahui1
Yusep K CaryanaAfiliasi tidak diketahui1
Maizar RahmanAfiliasi tidak diketahui1
Hadi PrasetyoAfiliasi tidak diketahui1
Kosasih SartadiredjaAfiliasi tidak diketahui1
Bambang A WidjayantoAfiliasi tidak diketahui1
Tunggal TunggalAfiliasi tidak diketahui1
Ridwan RidwanUniversitas Merdeka Madiun1
Patrick M. WongAfiliasi tidak diketahui1
Himawan SutantoAfiliasi tidak diketahui1
Humbang PurbaAfiliasi tidak diketahui1
Andi RuswandiAfiliasi tidak diketahui1
Septi AnggraeniAfiliasi tidak diketahui1
Sugihardjo SugihardjoNational Research and Innovation Agency1
Panca WahyudiNational Research and Innovation Agency1
Danang SismartonoUniversity of Indonesia1
Wanda Ali AkbarAfiliasi tidak diketahui1
Usman UsmanNational Research and Innovation Agency1
Arie RahmadiNational Research and Innovation Agency1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

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">Irreducible Water Saturation And Its Governing Factors: Characteristics Of Some Sandstones In Western Indonesia</dc:title>
	<dc:creator xml:lang="en">Widarsono, Bambang</dc:creator>
	<dc:subject xml:lang="en">irreducible water saturation</dc:subject>
	<dc:subject xml:lang="en">reserves</dc:subject>
	<dc:subject xml:lang="en">wettability</dc:subject>
	<dc:subject xml:lang="en">sandstone</dc:subject>
	<dc:description xml:lang="en">Irreducible water saturation (Swirr) plays a very significant role in the estimation of hydrocarbon in place and reserves. Inaccurate Swirr and lack of knowledge for judging its accuracy may result in erroneous and misleading reserve estimates along with its consequences. This study is basically aimed at understanding of Swirr characteristics of reservoir sandstones in some fields in western Indonesia. For the study, data obtained from 1,334 core samples – taken from 78 fields in 10 sedimentary basins – is used. Observations and investigations are made in sedimentary basin, field, and formation scales. The main finding is that rock wettability plays a very significant factor in determining Swirr characteristics, in a manner more than what rock pore types and configuration do. Its variation – be it contrasting or difference in strength – influences the Swirr characteristics in its relation to rock permeability. It is also found that geological similarity and geographical proximity do not have effects on Swirr characteristics unless they directly affect the rock’s overall wettability. This occurs not only at higher scale of sedimentary basin but also at lower levels of field and rock formations. The study also produces permeability - Swirr correlations for both sedimentary basins and rock formations levels. The overall results of this study is an understanding that gross simplification in assuming reservoir general wettability has to avoided in order to prevent erroneous picture over a field’s most representative Swirr characteristics.</dc:description>
	<dc:publisher xml:lang="en">Testing Center for Oil and Gas LEMIGAS</dc:publisher>
	<dc:date>2022-02-15</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/788</dc:identifier>
	<dc:identifier>10.29017/SCOG.34.1.788</dc:identifier>
	<dc:source xml:lang="en">Scientific Contributions Oil and Gas; Vol. 34 No. 1 (2011); 19-34</dc:source>
	<dc:source xml:lang="id">Scientific Contributions Oil and Gas; Vol 34 No 1 (2011); 19-34</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/788/575</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 1970 SCIENTIFIC CONTRIBUTIONS OIL AND GAS (SCOG)</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by/4.0</dc:rights>
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