2D seismic AVO inversion for geothermal reservoir characterisation in Zealand Denmark

Esben Dalgaard; Kenneth Bredesen; Anders Mathiesen; Niels Balling; Adriana Gordon

doi:10.1190/segam2021-3594895.1

2D seismic AVO inversion for geothermal reservoir characterisation in Zealand Denmark

Esben Dalgaard
, Kenneth Bredesen
, Anders Mathiesen
, Niels Balling
, Adriana Gordon

Department of Geophysics and Sedimentary Basins

Research output: Contribution to journal › Conference article in journal › peer-review

Abstract

A 2D seismic AVO inversion and well log analysis was performed to characterise a geothermal reservoir in the northern Zealand of Denmark in 2019. This case study shows how from the seismic inversion results it is possible to interpret different lithologies and estimate porosities through links established with well logs. The results revealed several layers of porous and clean sandstone as potential high-quality reservoirs for geothermal energy development within the Lower Jurassic unit and the Gassum formation. Even though the limited data available for the study caused some challenges, the obtained predictions seem generally reasonable when compared to existing regional well data, seismic interpretations and geological expectations. Ultimately, this study demonstrates the applicability of seismic AVO inversion for reservoir characterisation as a tool for de-risking geothermal resources.

Original language	English
Pages (from-to)	3326-3330
Number of pages	5
Journal	SEG Technical Program Expanded Abstracts
Volume	2021
Issue number	September
DOIs	https://doi.org/10.1190/segam2021-3594895.1
Publication status	Published - 2021
Event	1st International Meeting for Applied Geoscience and Energy - Denver, United States Duration: 26 Sept 2021 → 1 Oct 2021

Programme Area

Programme Area 3: Energy Resources

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10.1190/segam2021-3594895.1

Cite this

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title = "2D seismic AVO inversion for geothermal reservoir characterisation in Zealand Denmark",

abstract = "A 2D seismic AVO inversion and well log analysis was performed to characterise a geothermal reservoir in the northern Zealand of Denmark in 2019. This case study shows how from the seismic inversion results it is possible to interpret different lithologies and estimate porosities through links established with well logs. The results revealed several layers of porous and clean sandstone as potential high-quality reservoirs for geothermal energy development within the Lower Jurassic unit and the Gassum formation. Even though the limited data available for the study caused some challenges, the obtained predictions seem generally reasonable when compared to existing regional well data, seismic interpretations and geological expectations. Ultimately, this study demonstrates the applicability of seismic AVO inversion for reservoir characterisation as a tool for de-risking geothermal resources.",

author = "Esben Dalgaard and Kenneth Bredesen and Anders Mathiesen and Niels Balling and Adriana Gordon",

note = "Funding Information: This work was part of the GEOTHERM research project supported by Innovation Fund Denmark (IFD) under grant number 6154-00011B. This study was performed in collaboration with colleagues from Aarhus University and The Geological Survey of Denmark and Greenland (GEUS). Publisher Copyright: {\textcopyright} 2021 Society of Exploration Geophysicists First International Meeting for Applied Geoscience \& Energy; 1st International Meeting for Applied Geoscience and Energy ; Conference date: 26-09-2021 Through 01-10-2021",

year = "2021",

doi = "10.1190/segam2021-3594895.1",

language = "English",

volume = "2021",

pages = "3326--3330",

journal = "SEG Technical Program Expanded Abstracts",

issn = "1052-3812",

number = "September",

}

TY - JOUR

T1 - 2D seismic AVO inversion for geothermal reservoir characterisation in Zealand Denmark

AU - Dalgaard, Esben

AU - Bredesen, Kenneth

AU - Mathiesen, Anders

AU - Balling, Niels

AU - Gordon, Adriana

N1 - Funding Information: This work was part of the GEOTHERM research project supported by Innovation Fund Denmark (IFD) under grant number 6154-00011B. This study was performed in collaboration with colleagues from Aarhus University and The Geological Survey of Denmark and Greenland (GEUS). Publisher Copyright: © 2021 Society of Exploration Geophysicists First International Meeting for Applied Geoscience & Energy

PY - 2021

Y1 - 2021

N2 - A 2D seismic AVO inversion and well log analysis was performed to characterise a geothermal reservoir in the northern Zealand of Denmark in 2019. This case study shows how from the seismic inversion results it is possible to interpret different lithologies and estimate porosities through links established with well logs. The results revealed several layers of porous and clean sandstone as potential high-quality reservoirs for geothermal energy development within the Lower Jurassic unit and the Gassum formation. Even though the limited data available for the study caused some challenges, the obtained predictions seem generally reasonable when compared to existing regional well data, seismic interpretations and geological expectations. Ultimately, this study demonstrates the applicability of seismic AVO inversion for reservoir characterisation as a tool for de-risking geothermal resources.

AB - A 2D seismic AVO inversion and well log analysis was performed to characterise a geothermal reservoir in the northern Zealand of Denmark in 2019. This case study shows how from the seismic inversion results it is possible to interpret different lithologies and estimate porosities through links established with well logs. The results revealed several layers of porous and clean sandstone as potential high-quality reservoirs for geothermal energy development within the Lower Jurassic unit and the Gassum formation. Even though the limited data available for the study caused some challenges, the obtained predictions seem generally reasonable when compared to existing regional well data, seismic interpretations and geological expectations. Ultimately, this study demonstrates the applicability of seismic AVO inversion for reservoir characterisation as a tool for de-risking geothermal resources.

UR - https://www.scopus.com/pages/publications/85120991301

U2 - 10.1190/segam2021-3594895.1

DO - 10.1190/segam2021-3594895.1

M3 - Conference article in journal

AN - SCOPUS:85120991301

SN - 1052-3812

VL - 2021

SP - 3326

EP - 3330

JO - SEG Technical Program Expanded Abstracts

JF - SEG Technical Program Expanded Abstracts

IS - September

T2 - 1st International Meeting for Applied Geoscience and Energy

Y2 - 26 September 2021 through 1 October 2021

ER -

2D seismic AVO inversion for geothermal reservoir characterisation in Zealand Denmark

Abstract

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