Geologic setting of the Kerendan gas and condensate discovery, Tertiary sedimentation and paleogeography of the northwestern part of the Kutei basin, Kalimantan, Indonesia

Weerd, A. van de; Armin, R. A.; Mahadi, Sumar; Ware, P. L. B.

doi:10.29118/ipa.2384.317.338

Cited by 11 publications

(16 citation statements)

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“…The Kerendan #1 well (Fig. 2) was drilled in 1982 and tested significant volumes of gas from Oligocene platform carbonates (van de Weerd et al, 1987). A more extensive grid of seismic data was acquired between 1985 and 1987.…”

Section: Exploration Historymentioning

confidence: 99%

“…The structural and tectonic evolution of the Kutei Basin has been discussed by many authors including Hamilton (1979), van de Weerd et al (1987), Moss et al (1997), Chambers and Daley (1997), and Cloke et al (1999). Moss et al (1997) suggested that the basin's basement includes fragmented Upper Cretaceous microcontinental, ophiolitic, and accretionary prism material intruded by Cretaceous plutons.…”

Section: Geological Settingmentioning

confidence: 99%

“…An Oligocene carbonate platform is present in the westernmost part of the Kutei Basin in Central Kalimantan (Figs. 1 and 2;van de Weerd et al, 1987) and has been characterized using a grid of 2D seismic profiles and wells with cores. The platform is composed of carbonates assigned to the Oligocene Berai Limestone.…”

Section: Introductionmentioning

confidence: 99%

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Depositional and Diagenetic History of the Kerendan Carbonate Platform, Oligocene, Central Kalimantan, Indonesia

Saller

Vijaya

2002

Journal of Petroleum Geology

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The Kerendan carbonate platform (Oligocene Berai Limestone) covers a subsurface area measuring approximately 11 by 16 km in the westernmost Kutei Basin, Central Kalimantan. Aggradation of the Kerendan platform occurred during a major Oligocene transgression, and is contemporaneous with aggradation and backstepping of the Barito shelf margin which was located approximately 30 km to the south. The Kerendan platform is approximately 1,000 m thick, and comprises three aggrading seismic sequences identified by the downlap of basinal strata at the platform margin and downlap of transgressive strata within the platform. Carbonate deposition started in the Late Eocene, and ended when the upper limestone sequence drowned and was covered with shale in the Late Oligocene (approximately 28.6 Ma). Three depositional areas can be distinguished in seismic sections: (1) a platform interior (lagoon); (2) a slightly raised platform rim (1-2 km wide); and (3) a basinward-dipping platform margin and slope. The margin of the platform is identified by inflections on the seismic profiles where the relatively flat platform top begins to slope basinward.Depositional models from outcrops combined with core from three Kerendan wells were used to extrapolate depositional facies onto the seismically-defined platform. Platform-interior (lagoon) facies consist largely of fossiliferous wackestones and packstones, and porosities are generally lower than 5%. The platform rim is characterized by interbedded bioclastic wackestones, packstones, grainstones and boundstones, with grainstones increasing toward the platform margin. Porosity preferentially occurs in packstones, grainstones and boundstones. The platform-rim deposits have greater porosity (5-13%) than the platform interior because the platform rim is more grainstone-rich, and because acidic waters compacting out of basinal shales concentrated dissolution near the platform margin. Pore types include vuggy porosity, microporosity within grains, and intercrystalline porosity in dolomite in the upper part of the platform rim. Different pore types have resulted in variable but locally very high permeabilities (greater than 100 mD). Permeabilities decrease with depth as vuggy pores decrease, and microporosity becomes dominant.

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Section: Exploration Historymentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

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Depositional and Diagenetic History of the Kerendan Carbonate Platform, Oligocene, Central Kalimantan, Indonesia

Saller

Vijaya

2002

Journal of Petroleum Geology

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“…The oldest parts of the sequences that formed in the basins may be Paleocene (e.g. van Leeuwen 1981;van de Weerd et al 1987;Wain & Berod 1989;Kusuma & Darin 1989;Satyana et al 1999;Fraser & Ichram 2000) but this is very uncertain because the oldest parts of the sequences are typically terrestrial and poorly dated. By the Middle Eocene, extension was well underway and Eocene rocks are interpreted as syn-rift deposits of extensional graben and half-graben.…”

Section: Discussionmentioning

confidence: 97%

“…van de Weerd et al 1987;Letouzey et al 1990;Guntoro 1999;Wilson 1999). In the Lariang and Karama regions basement structures have also influenced the orientation of Cenozoic structures.…”

Section: Basement Controls On the Cenozoic Stratamentioning

confidence: 97%

Cenozoic evolution of the Lariang and Karama regions, North Makassar Basin, western Sulawesi, Indonesia

Calvert

Hall

2007

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The Lariang and Karama regions of western Sulawesi, an area of approximately 10 000 km 2 , were the subject of a field-based investigation with the aim of understanding the Cenozoic evolution of the North Makassar Basin. Western Sulawesi was influenced by the development of the Makassar Straits to the west and the collision of continental, ophiolitic and island-arc fragments to the east. The timing of these events has been the subject of considerable debate and it has been suggested that Neogene collisions in Sulawesi caused inversion in Borneo. A new stratigraphy for the Lariang and Karama regions of western Sulawesi, based on fieldwork, provides new and significant insights into the evolution of the Makassar Straits region. The oldest sediments are non-marine and could be as old as Paleocene; they include coals, sandstones and mudstones. Rifting had started by the Middle Eocene and continued into the Late Eocene. Syn-rift Eocene sediments were deposited in graben and half-graben in both marine and marginal marine environments. The Eocene Makassar Straits rift was highly asymmetrical; the Kalimantan margin was approximately twice the width of the Sulawesi margin. Thermal subsidence had started by the latest Eocene and by the end of the Oligocene most of western Sulawesi was an area of post-rift shelf carbonate and mudstone deposition. This shallow-marine depositional environment persisted throughout the Early Miocene and, in places, until the Middle or Late Miocene. In the Pliocene the character of sedimentation changed significantly. Uplift and erosion was followed by the deposition of coarse clastics derived from an orogenic belt to the east of the study area. The Palaeogene half-graben were inverted, there was localized detachment folding and the overlying Neogene section was folded, faulted and eroded in places. Contractional deformation in western Sulawesi dates from the Pliocene, whereas in eastern Kalimantan it dates from the Early Miocene.

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Condensate gas blockage simulation in a gas reservoir: a case study of a gas field in the Mahakam Delta, East Kalimantan, Indonesia

2018

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Geologic setting of the Kerendan gas and condensate discovery, Tertiary sedimentation and paleogeography of the northwestern part of the Kutei basin, Kalimantan, Indonesia

Cited by 11 publications

References 0 publications

Depositional and Diagenetic History of the Kerendan Carbonate Platform, Oligocene, Central Kalimantan, Indonesia

Depositional and Diagenetic History of the Kerendan Carbonate Platform, Oligocene, Central Kalimantan, Indonesia

Cenozoic evolution of the Lariang and Karama regions, North Makassar Basin, western Sulawesi, Indonesia

Condensate gas blockage simulation in a gas reservoir: a case study of a gas field in the Mahakam Delta, East Kalimantan, Indonesia

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