Reservoir architecture of the cook formation on the gullfaks field based on sequence stratigraphic concepts

Dreyer, Tom; Wiig, Margrethe

doi:10.1016/s0928-8937(06)80066-4

Cited by 12 publications

(19 citation statements)

References 13 publications

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“…Both Dreyer and Wiig (1995) and Charnock et al (2001) have described the deltaic part of the Cook Formation in the Tampen Spur area as being wave-dominated. This stands in contrast to the tidal-fluvial dominated delta regressive unit of this study.…”

Section: Discussionmentioning

confidence: 99%

“…Internally, the regressive (deltaic facies association F1 -2 -3) of the formation shows a thickening trend westward of approximately 68% from 34/ 11 -A -10 (45 mTVD) to the wells 34/10 -35 (76 mTVD) and 34/10 -23 (73 mTVD). Such a thickness difference has not been reported within the deltaic part of the Cook Formation in the Tampen Spur (Dreyer and Wiig, 1995;Charnock et al, 2001;Husmo et al, 2003) and it appears to be at odds with the general tabular thickness distribution of the Cook Formation on field scale (Charnock et al, 2001;Husmo et al, 2003).…”

Section: Thickness Distribution Within the Cook Formationmentioning

confidence: 94%

“…It has been described as a succession of relatively shallow marine deposits (Ager, 1975;Gage and Doré, 1986;Dreyer and Wiig, 1995;Marjanac and Steel, 1997). In the study area, the Cook Formation is of Toarcian age and is time-equivalent with the Cook Formation found in the Gullfaks Field (Fig.…”

Section: Geological Settingmentioning

confidence: 99%

“…2). The formation was sourced from the eastern basin margin and prograded westwards due to the Late Pliensbachian rift margin uplift (Charnock et al, 2001;Husmo et al, 2003) and shows a maximum westerly extent into the Statfjord Field (33/ 12) (Dreyer and Wiig, 1995) (see Husmo et al (2003) for palaeogeographical maps of the Cook Formation in the northern North Sea). The Cook Formation was deposited at a time when marine waters had transgressed over parts of the Triassic and Lower Jurassic sediments mainly fluvial Statfjord Formation in the northern North Sea (Steel, 1993) and formed a narrow seaway (Husmo et al, 2003).…”

Section: Geological Settingmentioning

confidence: 99%

“…Above, the Cook Formation shows a gradual coarsening-upward trend from marine mudstones of the Burton Formation below to heterolithic sandstones and mudstones as shown in the cored section with facies association F1 and IF 1 in the image logs. This unit is interpreted as a part of a lower-delta front environment and is similar to the Cook 1 unit of Dreyer and Wiig (1995).…”

Section: Depositional Environments Of the Cook Formation By Integratimentioning

confidence: 99%

See 4 more Smart Citations

Utilising borehole image logs to interpret delta to estuarine system: A case study of the subsurface Lower Jurassic Cook Formation in the Norwegian northern North Sea

Folkestad

Veselovský²,

Roberts³

2012

Marine and Petroleum Geology

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Section: Discussionmentioning

confidence: 99%

Section: Thickness Distribution Within the Cook Formationmentioning

confidence: 94%

Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Depositional Environments Of the Cook Formation By Integratimentioning

confidence: 99%

See 3 more Smart Citations

Utilising borehole image logs to interpret delta to estuarine system: A case study of the subsurface Lower Jurassic Cook Formation in the Norwegian northern North Sea

Folkestad

Veselovský²,

Roberts³

2012

Marine and Petroleum Geology

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Impact of the lower Jurassic Dunlin Group depositional elements on the Aurora CO2 storage site, EL001, northern North Sea, Norway

Meneguolo

Sundal²,

Martinius³

et al. 2022

International Journal of Greenhouse Gas Control

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Alluvial development during climate fluctuations depicted with spectral decomposition of the Middle Triassic to Lower Jurassic post‐rift succession in the Horda Platform (Norway) and the impact on reservoir properties

et al. 2023

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For the first time, this study presents interpretations of alluvial fans in spectral decomposition RGB Blends, analysed in seismic time slices from the Middle Triassic to Lower Jurassic stratigraphical interval of the Horda Platform (northern North Sea). The time slices record a shifting alluvial fan front, fluvial variability, uplift and erosion and reveals depositional elements that may set the common conception of the geological development of this area during the Early–Middle Mesozoic up for discussion. Results show that the Upper Triassic Lunde Formation in the eastern margin of the Horda Platform was characterized by the deposition of coalesced alluvial fans. A variable extent of the fan front through the Upper Triassic is linked to interplaying allogenic factors: uplifted source areas in the aftermath of Early–Middle Triassic rifting determined sediment availability; climate transitioning from arid to semi‐humid, with increasingly fluctuating precipitation, controlled sedimentation, and run‐off; provenance dictated bulk sedimentology and affected prevailing alluvial processes. An overall retreat of the fan system through the Late Triassic coincided with a significant change in landscape characteristics at the transition into the overlying Statfjord Group. Uplift and initial tilting of the Horda Platform caused landscape degradation and the formation of plateaus and incised valleys, contemporaneous with increased humidity and marine transgression, forming estuaries. The shift in depositional style has implications for reservoir properties, creating complexity and heterogeneity in terms of facies distribution and connectivity, which may benefit potential CO2 storage. Upper Triassic alluvial fan development in the Horda Platform (northern North Sea) depicted through spectral decomposition of seismic time slices Enhanced level of seismic stratigraphic interpretation with RGB blending Impact of allogenic factors on alluvial depositional development Implications of alluvial variability on reservoir properties

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Reservoir architecture of the cook formation on the gullfaks field based on sequence stratigraphic concepts

Cited by 12 publications

References 13 publications

Utilising borehole image logs to interpret delta to estuarine system: A case study of the subsurface Lower Jurassic Cook Formation in the Norwegian northern North Sea

Utilising borehole image logs to interpret delta to estuarine system: A case study of the subsurface Lower Jurassic Cook Formation in the Norwegian northern North Sea

Impact of the lower Jurassic Dunlin Group depositional elements on the Aurora CO2 storage site, EL001, northern North Sea, Norway

Alluvial development during climate fluctuations depicted with spectral decomposition of the Middle Triassic to Lower Jurassic post‐rift succession in the Horda Platform (Norway) and the impact on reservoir properties

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