On this page you find links to well and log data, seismic data, maps and selected references as well as information on ongoing and completed GEUS projects you can join, and get access to very comprehensive information of relevance for exploration.
Further details on licensing terms, available areas and timing can be found on the web-site of the Danish Energy Agency www.ens.dk and www.oilgasin.dk. Additional information can be found on the web-site of Nordsøfonden www.nordsoefonden.dk.
Important datesMay the 26th 2014 an opening meeting will be held at the Danish Energy Agency where the Danish Energy Agency, Nordsøfonden and GEUS will present detailed information of the licensing round, the history of the previous rounds, and promising future plays.
In June 16-19th 2014 the Danish Energy Agency and GEUS will be promoting the Licensing Round at the EAGE Conference and Exhibition 2014 in Amsterdam at stand 3430.
GEUS hosts the national geological database for Denmark. In relation to the 7th licensing round GEUS distribute the following key data:
GEUS can also help with contact to other data owners in Denmark.
Exploration modelsThe most recent licensing round, the 6th Round, was held in 2005/2006, and 14 licenses were granted in the round. Since 2006 a total of 20 exploration and appraisal wells have been drilled in the Central Graben area leading to 14 technical discoveries.
Many attractive exploration plays are still to be explored. The Danish Chalk reservoirs have been a key element in the oil and gas production for many years. Recently, increased focus has been placed on promising plays in reservoir sandstones of Late and Middle Jurassic age and new opportunities are also seen in plays in the lower Cretaceous and younger depositional systems. Several oil companies are currently evaluating discoveries in Paleogene sediments just above the chalk and even sandstones of Neogene age.
Several ongoing and recently completed GEUS projects provide very comprehensive information of relevance for exploration:
The Jurassic Petroleum System of the Danish Central Graben (PETSYS)GEUS has just finalized the project "The Jurassic Petroleum System of the Danish Central Graben" (The short title of the project is PETSYS - PETroleum SYStem) carried out over the last three years through collaboration agreements between GEUS and sponsoring Oil Companies. The project results are very important for understanding exploration possibilities within the Jurassic succession
The project results include:
Detailed information on The Jurassic Petroleum System of the Danish Central Graben (PETSYS)
The Cretaceous Petroleum System of the Danish Central Graben (CRETSYS)Although the Danish Central Graben is a mature petroleum province, and the majority of the Danish producing reservoirs are in the Upper Cretaceous Chalk and in the Danian, key aspects of the Upper and Lower Cretaceous prospectivity are still to be developed due to the stratigraphic and structural complexity of the Cretaceous sedimentary system. Seismic-stratigraphic interpretation has typically been at field or local/semi-regional scale but a consistent regional framework with the integration of seismic, stratigraphic/biostratigraphic and petrophysical data for the entire area is lacking although such a framework is essential in understanding the structural evolution and basin development.
Therefore GEUS is launching a comprehensive study on the Upper and Lower Cretaceous and Danian section in the Danish Central Graben "The Cretaceous Petroleum System in the Danish Central Graben (CRETSYS)" after the model of The Jurassic petroleum system (PETSYS) project which acts as a model for such an integrated multidisciplinary project to resolve the complex history of Cretaceous reservoir development.
Recent work on the Cretaceous shows the need for a revision of the established stratigraphy, and a revision of the Cretaceous stratigraphy is proposed. Prediction of reservoir quality of both chalk and sandstones is a major challenge in evaluating the Cretaceous succession, so a comprehensive study of the Cretaceous-Petroleum System in this area will be of considerable value for companies exploring in Denmark.
GEUS has carried out research on chalk in the Central Graben in the Danish, UK, Norwegian, German and Dutch sector for decades and has an experienced staff within all aspects of petroleum systems studies. Here, we propose a regional study focusing on clastic and chalk reservoir rocks of the Cretaceous Petroleum System in the Danish Central Graben that will be carried out as a multi-client study between GEUS and interested oil companies.
The primary aims of the project are to:
The study is a 3 year project carried out through collaboration agreements between GEUS and participating Oil Companies, starting out with interpretation in the spring of 2014 and finalized in May 2017. Throughout the project period results will be made accessible to participating Companies through a restricted web-site and discussed during biannual workshops.
Detailed information on The Cretaceous Petroleum System of the Danish Central Graben (CRETSYS)
Cenozoic Petroleum Potential in the Danish North SeaCenozoic petroleum systems in the North Sea have been recognized for decades. Current oil production in the Siri fairway proves hydrocarbon accumulations in Paleocene and Eocene sandstones. The current production of shallow gas in the Dutch Sector and the new oil discovery in the "Little John" structure, Danish sector, have increased the interest for hydrocarbon exploration in the younger Cenozoic succession of the North Sea Basin. The reservoirs for these hydrocarbon accumulations are mainly fluvio-deltaic systems with associated turbidite deposits and migrating sanddunes on the shelf. The distribution of high quality reservoir sands within these systems have shown to been highly dependent on climatic variations (e.g. eustatic sea-level changes) and marine processes.
The recently finished onshore Miocene Project and related studies have developed a robust stratigraphic framework and palyno/bio facies model for the younger Tertiary succession and demonstrated the important relationship between climate change and deposition of high quality reservoir sand. To date, 10 regional maps have been made for the Oligocene, Miocene and Pliocene succession. However, the knowledge about sand-rich sections, distribution and quality within the North Sea area is poorly understood and thus a key issue in this "Cenozoic Petroleum Potential in the Danish North Sea" project. Detailed petrophysics, seismic facies analysis based on 3D surveys, palynostratigraphy, and palyno/bio facies will form the basis for this project.
The project aims are to:
Detailed information on Cenozoic Petroleum Potential in the Danish North Sea