Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea

Research output: Contribution to journalJournal articlepeer-review

Standard

Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea. / Bredesen, Kenneth; Lorentzen, Mads; Nielsen, Lars; Mosegaard, Klaus.

In: Petroleum Geoscience, Vol. 27, No. 4, petgeo2021-016, 01.11.2021.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Bredesen, K, Lorentzen, M, Nielsen, L & Mosegaard, K 2021, 'Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea', Petroleum Geoscience, vol. 27, no. 4, petgeo2021-016. https://doi.org/10.1144/petgeo2021-016

APA

Bredesen, K., Lorentzen, M., Nielsen, L., & Mosegaard, K. (2021). Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea. Petroleum Geoscience, 27(4), [petgeo2021-016]. https://doi.org/10.1144/petgeo2021-016

Vancouver

Bredesen K, Lorentzen M, Nielsen L, Mosegaard K. Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea. Petroleum Geoscience. 2021 Nov 1;27(4). petgeo2021-016. https://doi.org/10.1144/petgeo2021-016

Author

Bredesen, Kenneth ; Lorentzen, Mads ; Nielsen, Lars ; Mosegaard, Klaus. / Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea. In: Petroleum Geoscience. 2021 ; Vol. 27, No. 4.

Bibtex

@article{b4453f60e4b34f1880276752bd9ff730,
title = "Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea",
abstract = "A quantitative seismic interpretation study is presented for the Lower Cretaceous Tuxen reservoir in the Valdemar Field, which is associated with heterogeneous and complex geology. Our objective is to better outline the reservoir quality variations of the Tuxen reservoir across the Valdemar Field. Seismic pre-stack data and well logs from two appraisal wells form the basis of this study. The workflow used includes seismic and rock physics forward modelling, attribute analysis, a coloured inversion, and a Bayesian pre-stack inversion for litho-fluid classification. Based on log data, the rock physics properties of the Tuxen interval reveal that the seismic signal is more governed by porosity than water-saturation changes at near-offset (or small angle). The coloured and Bayesian inversion results were generally consistent with well-log observations at the reservoir level and conformed to interpreted horizons. Although the available data have some limitations and the geological setting is complex, the results implied more promising reservoir quality in some areas than others. Hence, the results may offer useful information for delineating the best reservoir zones for further field development and selecting appropriate production strategies.",
keywords = "ELASTIC-MODULI, INVERSION, CHALK, LITHOLOGY, BOUNDS",
author = "Kenneth Bredesen and Mads Lorentzen and Lars Nielsen and Klaus Mosegaard",
year = "2021",
month = nov,
day = "1",
doi = "10.1144/petgeo2021-016",
language = "English",
volume = "27",
journal = "Petroleum Geoscience",
issn = "1354-0793",
publisher = "Geological Society Publishing House",
number = "4",

}

RIS

TY - JOUR

T1 - Quantitative seismic interpretation of the Lower Cretaceous reservoirs in the Valdemar Field, Danish North Sea

AU - Bredesen, Kenneth

AU - Lorentzen, Mads

AU - Nielsen, Lars

AU - Mosegaard, Klaus

PY - 2021/11/1

Y1 - 2021/11/1

N2 - A quantitative seismic interpretation study is presented for the Lower Cretaceous Tuxen reservoir in the Valdemar Field, which is associated with heterogeneous and complex geology. Our objective is to better outline the reservoir quality variations of the Tuxen reservoir across the Valdemar Field. Seismic pre-stack data and well logs from two appraisal wells form the basis of this study. The workflow used includes seismic and rock physics forward modelling, attribute analysis, a coloured inversion, and a Bayesian pre-stack inversion for litho-fluid classification. Based on log data, the rock physics properties of the Tuxen interval reveal that the seismic signal is more governed by porosity than water-saturation changes at near-offset (or small angle). The coloured and Bayesian inversion results were generally consistent with well-log observations at the reservoir level and conformed to interpreted horizons. Although the available data have some limitations and the geological setting is complex, the results implied more promising reservoir quality in some areas than others. Hence, the results may offer useful information for delineating the best reservoir zones for further field development and selecting appropriate production strategies.

AB - A quantitative seismic interpretation study is presented for the Lower Cretaceous Tuxen reservoir in the Valdemar Field, which is associated with heterogeneous and complex geology. Our objective is to better outline the reservoir quality variations of the Tuxen reservoir across the Valdemar Field. Seismic pre-stack data and well logs from two appraisal wells form the basis of this study. The workflow used includes seismic and rock physics forward modelling, attribute analysis, a coloured inversion, and a Bayesian pre-stack inversion for litho-fluid classification. Based on log data, the rock physics properties of the Tuxen interval reveal that the seismic signal is more governed by porosity than water-saturation changes at near-offset (or small angle). The coloured and Bayesian inversion results were generally consistent with well-log observations at the reservoir level and conformed to interpreted horizons. Although the available data have some limitations and the geological setting is complex, the results implied more promising reservoir quality in some areas than others. Hence, the results may offer useful information for delineating the best reservoir zones for further field development and selecting appropriate production strategies.

KW - ELASTIC-MODULI

KW - INVERSION

KW - CHALK

KW - LITHOLOGY

KW - BOUNDS

U2 - 10.1144/petgeo2021-016

DO - 10.1144/petgeo2021-016

M3 - Journal article

VL - 27

JO - Petroleum Geoscience

JF - Petroleum Geoscience

SN - 1354-0793

IS - 4

M1 - petgeo2021-016

ER -

ID: 281282728