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SHALE GAS SWEET SPOT POTENTIAL OF TUNGKAL GRABEN, JAMBI SUB-BASIN SOUTH SUMATERA BASIN

Scientific Contributions Oil and Gas · Vol. 42 No. 3 (2019) · hlm. 109–114

DOI
10.29017/SCOG.42.3.397
ISSN
2541-0520, 2089-3361
Terbit
2019-12-11
Penerbit
Testing Center for Oil and Gas LEMIGAS
Bahasa
eng
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

The Tungkal Graben is located in Jambi Sub-basin, the northern part of South Sumatera Basin. This basin is known as one of the largest hydrocarbons producing basin in Indonesia. There are several proven source rocks in the South Sumatera Basin. The paralic shales and coal horizon of Talangakar Formation (TAF) are known as primary source rock in this basin and considered as a reservoir of shale gas-bearing in Tungkal Graben Area as well. This study used surface geological data that was collected from the southern foot of Tiga Puluh Mountain as the outcrop analogy and subsurface data (existing well and seismic data) in Tungkal Graben Area. This study applied integrated methods including environmental deposition analysis, organic geochemistry analysis, petrophysical analysis, seismic interpretation, sweet spot delineation, and volumetric of gas in place (GIP) calculation. TAF observed both on the outcrop and well is transition deposit that consists of the dominance of shale and siltstone with interbedded of coal, sandstone, and limestone. Shale and siltstone of TAF have characteristic which is appropriate as a shale gas bearing, with sufficient organic content richness, suitable kerogen type, its maturity entering the early gas generation and proper brittleness index (BI). The sweet spot area is an area that has met the criteria for potential shale gas and determined by pay zone criteria. Depend on the criteria, Net to gross for shale gas is 0.158, early gas generation estimated at a depth of 10250 feet, and sweet spot area reaches 8.9 x 108 ft2. Thus, the total potential of shale gas resources from the calculation using the Ambrose method is 2.12 TCF.

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  • Lampung University
  • Sumatera Institute of Technology
  • National Research and Innovation Agency
  • Padjadjaran University
  • Badan Geologi
  • Pertamina (Indonesia)
  • Pusat Survei Geologi
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Rekan penulisOrganisasiArtikel bersama
Ordas DewantoLampung University2
Nanda Paquita SyaharaniLampung University1
Darsono DarsonoSebelas Maret University1
Agus Ardianto BudimanUniversitas Muslim Indonesia1
Edy SunardiPadjadjaran University1
Rakhmat FakhruddinNational Research and Innovation Agency1
Nisa Nurul IlmiPadjadjaran University1
Indra NurdianaBadan Geologi1
Dzul FadliBadan Geologi1
Adi JuniraAfiliasi tidak diketahui1
Yusuf IskandarAfiliasi tidak diketahui1
Eko Budi LelonoAfiliasi tidak diketahui1
Tatang PadmawidjajaAfiliasi tidak diketahui1
Aladin NasibovAzerbaijan State Oil and Industry University1
Abdullah Ali Ali HuseinSun Yat-sen University1
Handoyo HandoyoSumatera Institute of Technology1
Fatkhan FatkhanBandung Institute of Technology1
Asido Saputra SigalinggingSumatera Institute of Technology1
Bernard Cavin RonleiSumatera Institute of Technology1
Edlyn Yoadan NathaniaSumatera Institute of Technology1
Aurio ErdiNational Research and Innovation Agency1
Per AvsethAfiliasi tidak diketahui1
Ramon CarbonellConsejo Superior de Investigaciones Científicas1
Pranowo NugrohoPertamina (Indonesia)1
Riky Hendrawan Bayu PanditoPertamina (Indonesia)1
Bagus Sapto MulyatnoLampung University1
Isti Nur KumalasariLampung University1
Andri KurniawanLampung University1
Asep IrawanLampung University1

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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">SHALE GAS SWEET SPOT POTENTIAL OF TUNGKAL GRABEN, JAMBI SUB-BASIN SOUTH SUMATERA BASIN</dc:title>
	<dc:creator xml:lang="en">Ramli, Taufik</dc:creator>
	<dc:creator xml:lang="en">Hermiyanto Z, M. Heri</dc:creator>
	<dc:creator xml:lang="en">Wibowo, Andy Setyo</dc:creator>
	<dc:subject xml:lang="en">Tungkal Graben</dc:subject>
	<dc:subject xml:lang="en">Jambi sub-Basin</dc:subject>
	<dc:subject xml:lang="en">TAF</dc:subject>
	<dc:subject xml:lang="en">TOC</dc:subject>
	<dc:subject xml:lang="en">brittleness index</dc:subject>
	<dc:subject xml:lang="en">sweet spot</dc:subject>
	<dc:subject xml:lang="en">Gas in Place.</dc:subject>
	<dc:description xml:lang="en">The Tungkal Graben is located in Jambi Sub-basin, the northern part of South Sumatera Basin. This basin is known as one of the largest hydrocarbons producing basin in Indonesia. There are several proven source rocks in the South Sumatera Basin. The paralic shales and coal horizon of Talangakar Formation (TAF) are known as primary source rock in this basin and considered as a reservoir of shale gas-bearing in Tungkal Graben Area as well. This study used surface geological data that was collected from the southern foot of Tiga Puluh Mountain as the outcrop analogy and subsurface data (existing well and seismic data) in Tungkal Graben Area. This study applied integrated methods including environmental deposition analysis, organic geochemistry analysis, petrophysical analysis, seismic interpretation, sweet spot delineation, and volumetric of gas in place (GIP) calculation. TAF observed both on the outcrop and well is transition deposit that consists of the dominance of shale and siltstone with interbedded of coal, sandstone, and limestone. Shale and siltstone of TAF have characteristic which is appropriate as a shale gas bearing, with sufficient organic content richness, suitable kerogen type, its maturity entering the early gas generation and proper brittleness index (BI). The sweet spot area is an area that has met the criteria for potential shale gas and determined by pay zone criteria. Depend on the criteria, Net to gross for shale gas is 0.158, early gas generation estimated at a depth of 10250 feet, and sweet spot area reaches 8.9 x 108 ft2. Thus, the total potential of shale gas resources from the calculation using the Ambrose method is 2.12 TCF.</dc:description>
	<dc:publisher xml:lang="en">Testing Center for Oil and Gas LEMIGAS</dc:publisher>
	<dc:date>2019-12-11</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.lemigas.esdm.go.id/index.php/SCOG/article/view/397</dc:identifier>
	<dc:identifier>10.29017/SCOG.42.3.397</dc:identifier>
	<dc:source xml:lang="en">Scientific Contributions Oil and Gas; Vol. 42 No. 3 (2019); 109 - 114</dc:source>
	<dc:source xml:lang="id">Scientific Contributions Oil and Gas; Vol 42 No 3 (2019); 109 - 114</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/397/pdf</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2019 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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