Re-Visited Structural Framework of the Tarakan Sub-Basin Northeast Kalimantan – Indonesia

Hidayati, Sri; Guritno, Elly; Argenton, Antonio; Ziza, Walter; Campana, Iacopo Del

doi:10.29118/ipa.1717.07.g.109

Cited by 6 publications

(46 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Sub-Cekungan Tarakan di Kalimantan Utara diperkirakan memiliki potensi hidrokarbon sebesar dua miliar barrel of oil equivalent (BOE) tetapi potensi Gambar 1 Daerah penelitian Sub-Cekungan Tarakan, Kota Tarakan, Provinsi Kalimantan Utara (Zetra dkk., 2019). tersebut belum dimanfaatkan secara maksimal (Hidayati, 2018). Di Sub-Cekungan Tarakan pernah terdapat eksploitasi minyak dan gas bumi yang cukup besar, tetapi usaha eksplorasi kembali untuk menemukan sumbersumber migas baru di Sub-Cekungan tersebut hampir tidak pernah dilakukan.…”

Section: Pendahuluanunclassified

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

Laksono

Kusdiantoro

Kovács

et al. 2021

TEKNIK

View full text Add to dashboard Cite

Section: Pendahuluanunclassified

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

Laksono

Kusdiantoro

Kovács

et al. 2021

TEKNIK

View full text Add to dashboard Cite

“…But, it is possible to build models that are designed with different specifications. So we can build models which would respond the same as the real reservoir for a very narrow Figure 2 -a) Structure map of the Tarakan Sub-Basin (Hidayati, et al, 2007), b) Tarakan Basin can be divided into four sub-basins namely Tidung, Tarakan, Berau, and Muara Sub-Basin (Achmad and Samuel, 1984) Figure 3 -Regional tectonostratigraphy includes litostratigraphy and chronostratigraphy in the Tarakan Basin (Ellen, et al, 2008) Building 3D static geological models for "East Tarakan A" Field incorporating 2D interpretation both horizons and faults, petrophysical interpretation of A1, A2b and A3 wells and well to well correlation to divide into two zone reservoirs. A new geological model will be built based on interpretations and analyses of all the available geological, geophysical and 2D Seismic data in around of "East Tarakan A" Field.…”

Section: Geological and Geophysical Availability Datamentioning

confidence: 99%

SAND DISTRIBUTION MODELING OF MIDDLE MIOCENE RESERVOIR OF Â€œEAST TARAKAN a FIELDâ€ IN EASTERN PART OF TARAKAN ISLAND, EAST KALIMANTAN

Widjaja¹,

Noeradi²

2016

BoMG

View full text Add to dashboard Cite

The discovery well with initial name â€œEast Tarakan A-1â€ was drilled in February 2007 to a total vertical depth of 10,000 feet and encountered gas reservoir in Middle Miocene-age sands with deltaic sediment facies. The Field is structurally high, faulted to the Mengatal producing zones. This sandstone is hydrocarbon producer in most of onshore fields of Tarakan Island. â€œEast Tarakan Aâ€ Field has been suppported with 19 (nineteen) 2D Seismic data. There are three wells i.e: East Tarakan A-1, A2b and A3 with several logs data, mud log and biostratigraphic data. The study aims are firstly to built 3D structural model from time and depth structural maps based on seismic interpretation and well log analysis, secondly to create 3D properties model especially volume shale (V-shale) to get sand distribution. The sand distribution model is supported by 3D structural model, petrophysical analysis and seismic attributes as well as geo-statistic method. Based on petrophysical analysis and wells correlation, sand reservoir interval of Middle Miocene (Meliat Fm) can be devided into two zones respectively top to bottom; zone-1 dan zone-2. RMS Amplitude analysis has been used to help constrain the sand distribution. Sand distribution with two zones indicates that sand distribution of zone-1 and zone-2 are generally located in distributary channel delta. NTG Distribution model of zone-1 and zone-2 indicates that reservoir zone distributed in distributary sand with trend of west to east. NTG of zone-1 is relatively better reservoir than the zone-2. Keywords: Tarakan, Middle Miocene, V-shale, sand distribution, 3D model, NTG Sumur penemuan dengan nama inisial â€œEast Tarakan Aâ€ telah dibor pada Februari 2007 dengan total kedalaman 10.000 kaki dan dijumpai reservoir gas pada lapisan pasir berumur Miosen Tengah dengan fasies sedimen delta. Lapangan gas ini berupa struktur tinggian dan patahan bersebelahan dengan zona produksi Lapangan Mengatal. Batupasir sebagai batuan reservoir merupakan lapisan utama penghasil hidrokarbon di lapangan onshore di Pulau Tarakan. Lapangan â€œEast Tarakan Aâ€ didukung oleh data 19 penampang seismik 2D. Terdapat pula tiga sumur pemboran yaitu Tarakan A-1, A-2b dan A3 dengan beberapa data log sumur, mud log dan biostratigrafi. Studi ini dilakukan dengan maksud dan tujuan, pertama, membuat model stuktur geologi 3-dimensi dari peta struktur waktu dan kedalaman berdasarkan interpretasi seismic, analisis log sumur. Kedua, menghasilkan property model khususnya volume serpih (V-sh) untuk akhirnya memperoleh distribusi pasir. Model sebaran pasir didukung dengan model struktur 3D, analisis petrofisika dan atribut seismik serta metode geo-statistik. Based on petrophysical analysis and wells correlation, sand reservoir interval of Middle Miocene (Meliat Fm) can be devided into two zones respectively top to bottom; zone-1 dan zone-2. RMS Amplitude analysis has been used to help constrain the sand distribution. Sand distribution with two zones indicates that sand distribution of zone-1 and zone-2 are generally located in distributary channel delta. NTG Distribution model of zone-1 and zone-2 indicates that reservoir zone distributed in distributary sand with trend of west to east. NTG of zone-1 is relatively better reservoir than the zone-2. Berdasarkan pada analisis petrofisika dan korelasi antar sumur pemboran, lapisan reservoir pasir Miosen Tengah (Formasi Meliat) dibagi menjadi dua zona yaitu Zona-1 di bagian atas dan zona-2 di bawahnya. Analisis amplituda RMS pada data seismik digunakan untuk membantu penyebaran sedimen pasir. Sebaran pasir dengan dua zona menunjukkan secara umum keterdapatan pasir di area distributary channel delta. Model distribusi NTG (net to gross) pada zona-1 dan zona-2 memperlihatkan area reservoir berada di bagian pasir pada distributary channel dengan arah barat ke timur. NTG pada zona-1 relatif lebih baik daripada zona-2. Kata kunci: Tarakan, Miosen Tengah, V-serpih, sebaran pasir, NTG

show abstract

“…The basin is separated from the onshore region by thickskinned normal faults (e.g. Hidayati et al, 2007). The offshore area is characterized by shaledetached (i.e., thin-skinned), NE-SW-striking, basinward-and landward-dipping extensional (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The kinematics and origin of the growth faults and folds are debated, falling into two end-member models: (i) a strike-slip faulting model (e.g. Wight et al, 1993;Lentini and Darman, 1996;Hidayati et al, 2007;Maulin et al, 2021); and…”

Section: Introductionmentioning

confidence: 99%

Extensional Deformation of a Shale-dominated Delta: Tarakan Basin, Offshore Indonesia

Erdi¹,

Jackson²,

Soto³

2023

Preprint

View full text Add to dashboard Cite

Deformation on shale-rich continental margins is commonly associated with thin-skinned extension above mobile shales. Normal faulting and shale mobilization are widespread on such margins, being associated with and controlled by progradation and gravitational failure of deltaic sedimentary wedges. However, due to limitations in our ability to seismically imaging these mobile shales, our understanding of how base-shale relief controls deformation, and the shape, size, and distribution of shale structures remain poorly understood. We here use 3D seismic reflection data from the Tarakan Basin, offshore Indonesia to investigate the temporal and spatial evolution of thin-skinned deformations of the Neogene sedimentary section. Our detailed seismic interpretation reveals long (≤ 74 km), concave- and convex-into-the-basin faults, dipping both basinward (eastwards) and locally landward (westwards), which detach downwards on a basal mobile shale (Middle Miocene). The base of the shale unit dips gently (< 17o) seaward, although older (Paleogene), rift-related normal faults mean a local base-shale relief is present. Our analysis of isochron (thickness map) analysis shows that supra-shale normal faulting commenced in the Middle Miocene and was accompanied by the formation of hanging wall rollover folds and associated crestal grabens, with the subsequent along- and across strike migration of strain being related to the nucleation, lateral linkage, and reactivation of individual fault systems. Updip growth faulting was also accompanied by the downslope flow of mobile shale, margin-parallel and-perpendicular differential loading, and local contraction and mobile shale-upbuilding, resulting in the growth of large, margin-parallel shale anticlines further downdip. These faults and anticlines are locally overlain by tall (≤ 5 km) mud diapirs and volcanoes. We suggest that variations in the rate of sediment loading, mobile shale flow, fault growth, and gravitational failure above a seaward-dipping, but slightly rugose base-shale surface, controlled Neogene deformations in the Tarakan Basin. We also demonstrate how variations in the trend and dip of the base-shale surface influences the position, timing, and evolution of supra-shale faults and their associated depocenters along shale-rich, delta-fed clastic margins.

show abstract

Re-Visited Structural Framework of the Tarakan Sub-Basin Northeast Kalimantan – Indonesia

Cited by 6 publications

References 0 publications

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

SAND DISTRIBUTION MODELING OF MIDDLE MIOCENE RESERVOIR OF Â€œEAST TARAKAN a FIELDâ€ IN EASTERN PART OF TARAKAN ISLAND, EAST KALIMANTAN

Extensional Deformation of a Shale-dominated Delta: Tarakan Basin, Offshore Indonesia

Contact Info

Product

Resources

About

Re-Visited Structural Framework of the Tarakan Sub-Basin Northeast Kalimantan – Indonesia

Cited by 6 publications

References 0 publications

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

Analisis Kematangan Batuan Induk Hidrokarbon di Formasi Naintupo, Sub-Cekungan Tarakan, Provinsi Kalimantan Utara

SAND DISTRIBUTION MODELING OF MIDDLE MIOCENE RESERVOIR OF Â€œEAST TARAKAN a FIELDâ€ IN EASTERN PART OF TARAKAN ISLAND, EAST KALIMANTAN

Extensional Deformation of a Shale-dominated Delta: Tarakan Basin, Offshore Indonesia

Contact Info

Product

Resources

About

SAND DISTRIBUTION MODELING OF MIDDLE MIOCENE RESERVOIR OF Â€œEAST TARAKAN a FIELDâ€ IN EASTERN PART OF TARAKAN ISLAND, EAST KALIMANTAN