Sedimentation during halokinesis: Permo-Triassic reservoirs of the Saigak Field, Precaspian Basin, Kazakhstan

Barde, Jean-Pierre; Chamberlain, P.; Galavazi, M.; Gralla, Peter; Harwijanto, Josef; Marsky, Juergen; Belt, Frank van den

doi:10.1144/petgeo.8.2.177

Cited by 37 publications

(48 citation statements)

References 11 publications

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“…Generation of topographic lows associated with the development of rim-synclines by the preferential withdrawal of salt from beneath the margins of mini-basins adjacent to salt walls (Barde et al, 2002b;Banham and Mountney, 2013a) can result in the capture of fluvial systems and their confinement to the edges of a single minibasin (Fig. 6).…”

Section: Fluvial Interactionsmentioning

confidence: 99%

“…10b). Where fluvial systems incised into uplifting salt walls and maintained their drainage pathways, braided river and associated facies dominated the basin fill (Barde et al, 2002b).…”

Section: Pre-caspian Basinmentioning

confidence: 99%

“…Basin-fill style between the mini-basins varies dramatically, as recorded by subsurface well-log data (Barde et al, 2002b). This is a function of several factors: inheritance and capture of pre-existing drainage pathways as mini-basins developed; maintenance of saltwall height at a rate of uplift that preserved a long-lived topographic expression capable of effectively partitioning neighbouring minibasins and localised differences in the rate of sediment delivery and accumulation to fill available accommodation in adjacent mini-basins.…”

Section: Pre-caspian Basinmentioning

confidence: 99%

“…Sediment-starved basins tend to be characterised by evaporitic or lacustrine sedimentation. Modified after Barde et al (2002b). Goldsmith et al, 1995;Glennie et al, 2003;Goldsmith et al, 2003).…”

Section: Figmentioning

confidence: 99%

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Evolution of fluvial systems in salt-walled mini-basins: A review and new insights

Banham

Mountney

2013

Sedimentary Geology

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Section: Fluvial Interactionsmentioning

confidence: 99%

“…10b). Where fluvial systems incised into uplifting salt walls and maintained their drainage pathways, braided river and associated facies dominated the basin fill (Barde et al, 2002b).…”

Section: Pre-caspian Basinmentioning

confidence: 99%

Section: Pre-caspian Basinmentioning

confidence: 99%

Section: Figmentioning

confidence: 99%

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Evolution of fluvial systems in salt-walled mini-basins: A review and new insights

Banham

Mountney

2013

Sedimentary Geology

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“…Smith et al 1993;Barde et al 2002;Matthews et al 2007). The tectonic effects of halokinesis on saltwalled mini-basins are significant and can influence the shape and orientation of the mini-basin, as well as the sediment deposition and diagenetic alteration within it.…”

Section: Implications For Exploration In Salt-walled Mini-basins In Tmentioning

confidence: 99%

Reservoir quality of fluvial sandstone reservoirs in salt-walled mini-basins: an example from the Seagull field, Central Graben, North Sea, UK

Stricker

Jones

Meadows³

et al. 2018

Pet. Sci.

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The Triassic fluvial sandstones of the Skagerrak Formation were deposited in a series of salt-walled mini-basins and act as important hydrocarbon reservoirs for several high-pressure, high-temperature (HPHT) fields in the Central Graben, North Sea. The HPHT reservoirs exhibit excellent reservoir quality considering their depth of burial and hence have been of high interest for hydrocarbon exploration. This research uses a multidisciplinary approach to assess the Skagerrak Formation fluvial reservoir quality from the Seagull field incorporating core analysis, petrography, electron microscopy, XRD analysis, fluid inclusion appraisal and burial history modelling. Halokinesis and salt withdrawal at the margin of the saltwalled mini-basin induced early disaggregation bands and fractures at shallow burial and led to increased influx of meteoric water and clay mineral infiltration from overlying sedimentation. The density of disaggregation bands correlates with the occurrence and magnitude of pore-filling authigenic clay minerals, concentrated along the margin of the saltwalled mini-basin. The fluvial channel sandstones of the Skagerrak Formation are subject to strong intra-basinal spatial reservoir quality variations despite diagenesis and low vertical effective stress having played a favourable role in arresting porosity loss.

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Prospect evaluation based on integrated petroleum system analysis: Block E case study, south-eastern edge of Precaspian Basin (Kazakhstan)

Zhanserkeyeva

Kassenov

2022

J Petrol Explor Prod Technol

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Generative potential and thermal maturity for Upper Palaeozoic source rocks from the south-eastern edge of Precaspian Basin were determined using Rock–Eval. A high hydrocarbon source rock generative potential and high degree of thermal maturity for the Lower Permian, Mid-Carboniferous strata have been revealed based on 39 rock samples. TOC values of 0.4–5.5% have been obtained for mature source rocks. Integrated geochemical analysis determined from Rock–Eval studies combined with 1D basin modelling was utilized in order to reconstruct thermal evolution for the Upper Palaeozoic source rocks. Calibrated 1D models for three wells had been constructed to understand petroleum system. For two deep exploration wells (Nur-1 and Tassym SE-1), which penetrated pre-salt strata at the depths of 5.7 and 7 km, respectively, the impact of salt diapirism on timing of maturation was modelled. Type II kerogen was used, which is based on previous palaeogeographic studies. The stratigraphic framework and major stages of geodynamic evolution were analysed. Salt-related structural traps in post-salt strata have been described based on 3D seismic data, and additional intra-salt sediment packages have been delineated. Discovered producing oil fields in the Upper Triassic and Jurassic–Cretaceous stratigraphic sections are mainly confined to the four-way dip structural closures above the steep flanks of salt structures. Based on burial and thermal modelling, the maturation and generation behaviour of kerogen Type II below salt-related minibasins and close to thick salt diapirs were inferred. For Lower Permian SR with type II kerogen, the generation peak (maturity over 50%) occurs in Middle to Late Jurassic. For predominantly carbonate and terrigenous-carbonate Mid-Carboniferous marine SR, generation peak occurs earlier below salt withdrawal minibasins. Implications for deeper hydrocarbon prospectivity were made for the study area, and methodology for evaluating hydrocarbon potential adopting 1D basin modelling technique and geochemical data is presented.

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Sedimentation during halokinesis: Permo-Triassic reservoirs of the Saigak Field, Precaspian Basin, Kazakhstan

Cited by 37 publications

References 11 publications

Evolution of fluvial systems in salt-walled mini-basins: A review and new insights

Evolution of fluvial systems in salt-walled mini-basins: A review and new insights

Reservoir quality of fluvial sandstone reservoirs in salt-walled mini-basins: an example from the Seagull field, Central Graben, North Sea, UK

Prospect evaluation based on integrated petroleum system analysis: Block E case study, south-eastern edge of Precaspian Basin (Kazakhstan)

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