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DETERMINATION OF SHALE GAS POTENTIAL OF NORTH SUMATRA BASIN: AN INTEGRATION OF GEOLOGY, GEOCHEMISTRY, PETROPHYSICS AND GEOPHYSICS ANALYSIS

Scientific Contributions Oil and Gas · Vol. 38 No. 3 (2015) · hlm. 193–212

DOI
10.29017/SCOG.38.3.946
ISSN
2541-0520, 2089-3361
Terbit
2015-12-01
Penerbit
Testing Center for Oil and Gas LEMIGAS
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

A detailed combined geological and geophysical study in North Sumatra basin has shown thatprospective formations for shale play containing gas sweet spots are found to be in shales from Bampo,Belumai, and Baong Formations. Bampo Formation exhibits low shale gas potential with very low tomedium in organic material contents, maturity index of immature to mature, and moderate brittleness. Rockswithin the formation tend to be reactive to highly reactive to water, with a moderate degree of swellingcapacity. Porosity varies within 5.8 - 7.4 % with permeability ranging from 0.37 to 3.2 mD. Sweet spots inthe formation found around Basilam-1 and Securai-1wells occupy about 21% of the formation. On the otherhand, Belumai Formation shows moderate to good shale gas potential, with low to high organic materialcontents, immature to mature levels of maturity, and moderately brittle to brittle. Sweet spot areas in theformation found around the two wells are about 29% of the formation. For Baong Formation, analysisreveals moderate to good shale gas potential, with low to medium contents of organic material, immatureto mature in maturity index, moderately brittle to brittle in brittleness, and tendency of being reactiveto highly reactive to water but with low degree of swelling capacity. Sweet spots in the formation foundaround the two wells occupies are roughly 11% of the total formation volume in the area. Basin modelingleading to gas resources estimation for Baong, Belumai and Bampo Formations has led to estimatedvolumes of 6,379 TCF, 16,994 TCF, and 25,024 TCF, respectively, with a total amount of 48,397 TCF.The resources figures are speculative in nature and do not incorporate any certainty and efficiency factors.

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  • National Research and Innovation Agency
  • Hasanuddin University
  • Sebelas Maret University
  • Universitas Merdeka Madiun
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Rekan penulisOrganisasiArtikel bersama
Fakhriyadi SaptonoAfiliasi tidak diketahui5
Suliantara SuliantaraNational Research and Innovation Agency5
Herru Lastiadi SetiawanNational Research and Innovation Agency5
Suprajitno MunadiAfiliasi tidak diketahui5
Heru AtmokoAfiliasi tidak diketahui4
Tri Muji SusantoroNational Research and Innovation Agency4
Mohamad RomliNational Research and Innovation Agency3
Diana DwiyanartiNational Research and Innovation Agency3
Aziz Masykur LubadAfiliasi tidak diketahui3
Herizal HerizalNational Research and Innovation Agency3
Nurkamelia NurkameliaNational Research and Innovation Agency3
Sunting KepiesNational Research and Innovation Agency3
Ridwan RidwanHasanuddin University2
Kosasih KosasihAfiliasi tidak diketahui2
Merkurius. F. MendrofaAfiliasi tidak diketahui2
Djoko SunarjantoNational Research and Innovation Agency2
Julikah JulikahAfiliasi tidak diketahui2
Hadi PrasetyoAfiliasi tidak diketahui2
Jonathan Setyoko HadimuljonoAfiliasi tidak diketahui1
Desi YensusminarAfiliasi tidak diketahui1
Ongki Ari PrayogaAfiliasi tidak diketahui1
Egie WijaksonoAfiliasi tidak diketahui1
Junita Trivianty MusuAfiliasi tidak diketahui1
Darsono DarsonoSebelas Maret University1
Muhamad Defi AryantoAfiliasi tidak diketahui1
Rosie A.SAfiliasi tidak diketahui1
Saputro R.AAfiliasi tidak diketahui1
Yusep K CaryanaAfiliasi tidak diketahui1
Maizar RahmanAfiliasi tidak diketahui1
Zulkifliani ZulkiflianiAfiliasi tidak diketahui1
Kosasih SartadiredjaAfiliasi tidak diketahui1
Bambang A WidjayantoAfiliasi tidak diketahui1
Tunggal TunggalAfiliasi tidak diketahui1
Ridwan RidwanUniversitas Merdeka Madiun1
Patrick M. WongAfiliasi tidak diketahui1

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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) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">DETERMINATION OF SHALE GAS POTENTIAL OF NORTH SUMATRA BASIN: AN INTEGRATION OF GEOLOGY, GEOCHEMISTRY, PETROPHYSICS AND GEOPHYSICS ANALYSIS</dc:title>
	<dc:creator xml:lang="en">Musu, Junita Trivianty</dc:creator>
	<dc:creator xml:lang="en">Widarsono, Bambang</dc:creator>
	<dc:creator xml:lang="en">Ruswandi, Andi</dc:creator>
	<dc:creator xml:lang="en">Sutanto, Himawan</dc:creator>
	<dc:creator xml:lang="en">Purba, Humbang</dc:creator>
	<dc:subject xml:lang="en">Shale gas</dc:subject>
	<dc:subject xml:lang="en">North Sumatra Basin</dc:subject>
	<dc:subject xml:lang="en">total organic carbon</dc:subject>
	<dc:subject xml:lang="en">brittleness index</dc:subject>
	<dc:subject xml:lang="en">Baong Formation</dc:subject>
	<dc:subject xml:lang="en">Bampo Formation</dc:subject>
	<dc:subject xml:lang="en">Belumai Formation</dc:subject>
	<dc:subject xml:lang="en">smectite</dc:subject>
	<dc:subject xml:lang="en">acoustic impedance</dc:subject>
	<dc:subject xml:lang="en">continuous wavelet transform (CWT)</dc:subject>
	<dc:subject xml:lang="en">sweet spots</dc:subject>
	<dc:subject xml:lang="en">gas speculative resouces.</dc:subject>
	<dc:description xml:lang="en">A detailed combined geological and geophysical study in North Sumatra basin has shown thatprospective formations for shale play containing gas sweet spots are found to be in shales from Bampo,Belumai, and Baong Formations. Bampo Formation exhibits low shale gas potential with very low tomedium in organic material contents, maturity index of immature to mature, and moderate brittleness. Rockswithin the formation tend to be reactive to highly reactive to water, with a moderate degree of swellingcapacity. Porosity varies within 5.8 - 7.4 % with permeability ranging from 0.37 to 3.2 mD. Sweet spots inthe formation found around Basilam-1 and Securai-1wells occupy about 21% of the formation. On the otherhand, Belumai Formation shows moderate to good shale gas potential, with low to high organic materialcontents, immature to mature levels of maturity, and moderately brittle to brittle. Sweet spot areas in theformation found around the two wells are about 29% of the formation. For Baong Formation, analysisreveals moderate to good shale gas potential, with low to medium contents of organic material, immatureto mature in maturity index, moderately brittle to brittle in brittleness, and tendency of being reactiveto highly reactive to water but with low degree of swelling capacity. Sweet spots in the formation foundaround the two wells occupies are roughly 11% of the total formation volume in the area. Basin modelingleading to gas resources estimation for Baong, Belumai and Bampo Formations has led to estimatedvolumes of 6,379 TCF, 16,994 TCF, and 25,024 TCF, respectively, with a total amount of 48,397 TCF.The resources figures are speculative in nature and do not incorporate any certainty and efficiency factors.</dc:description>
	<dc:publisher xml:lang="en">Testing Center for Oil and Gas LEMIGAS</dc:publisher>
	<dc:date>2015-12-01</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/946</dc:identifier>
	<dc:identifier>10.29017/SCOG.38.3.946</dc:identifier>
	<dc:source xml:lang="en">Scientific Contributions Oil and Gas; Vol. 38 No. 3 (2015); 193-212</dc:source>
	<dc:source xml:lang="id">Scientific Contributions Oil and Gas; Vol 38 No 3 (2015); 193-212</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/946/720</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2015 SCIENTIFIC CONTRIBUTIONS OIL AND GAS (SCOG)</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by/4.0</dc:rights>
</oai_dc:dc>