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NATURAL FRACTURES AND SEDIMENTOLOGY OF A HETEROGENEOUS RESERVOIR: THE VALDEMAR FIELD, DANISH NORTH SEA

Publikation: Bidrag til bog/antologi/rapport/proceeding › Konferencebidrag i proceedings › Forskning › peer review

  • A. C. Glad, Danmarks Tekniske Universitet
    • ,
  • M. J. Welch, Danmarks Tekniske Universitet
    • ,
  • F. Amour, Danmarks Tekniske Universitet
    • ,
  • H. Nick, Danmarks Tekniske Universitet
    • ,
  • O. R. Clausen

The Valdemar Field (Central Danish North Sea) is a heterogeneous reservoir, with a high abundance of natural fractures, producing from chalk units within the Lower Cretaceous Upper Hauterivian-Lower Albian Tuxen and Sola Formations. The Lower Cretaceous stratigraphic interval in the Danish North Sea is characterized by chalk, argillaceous chalk, marlstones and claystones with hydrocarbons trapped in the chalk reservoir units. The reservoir (chalk) sediments are characterized by high porosity and low matrix permeability, but the presence of natural fractures strongly influences the flow properties by enhancing the effective permeability, and ultimately increases recovery. Several types of natural fractures are recognized on core scale, and some of these form a potential hydrocarbon pathway as they can significantly enhance the natural permeability in the reservoir. This is a first study that conducts a detailed analysis of natural fractures in the Valdemar Field, and relate them to stratigraphy and facies. Furthermore it is considered whether certain fracture types occur more frequent in specific stratigraphic intervals. It is investigated whether the fracture-facies relationship can enhance hydrcarbon recovery.

OriginalsprogEngelsk
Titel82nd EAGE Conference and Exhibition 2021
Antal sider5
ForlagEuropean Association of Geoscientists and Engineers, EAGE
Udgivelsesår2021
Sider1132-1136
ISBN (Elektronisk)9781713841449
StatusUdgivet - 2021
Begivenhed82nd EAGE Conference and Exhibition 2021 - Amsterdam, Virtual, Holland
Varighed: 18 okt. 2021 → 21 okt. 2021

Konference

Konference82nd EAGE Conference and Exhibition 2021
LandHolland
ByAmsterdam, Virtual
Periode18/10/2021 → 21/10/2021
SerietitelEAGE Conference and Exhibition, Proceeding
Vol/bind2

Bibliografisk note

Funding Information:
The research leading to these results has received funding from the Danish Hydrocarbon Research and Technology Centre under the Tight Reservoir Development (TRD) programme.

Publisher Copyright:
© EAGE Conference and Exhibition 2021.All right reserved.

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