Play concepts based on new stratigraphic methods - Two examples from the Dutch
conference paper
In the Northern Offshore of the Netherlands 'Upper Jurassic' strata are mostly limited to the Central Graben and Terschelling Basin. Outside the Central Graben and the Terschelling Basin only thin veneers of these strata occur on the fringing highs as the Schul Grund High and the Step Graben. The 'Upper Jurassic' strata are an important target for the oil and gas exploration. The geology of the non-marine to shallow marine strata is complex. The combination of lateral facies changes, repetitive log and facies characteristics in time, sea-level and climate changes, salt tectonics and structural differences hamper straightforward seismic interpretation and log correlation. A tectono-stratigraphic approach has led to the identification of three tectono-stratigraphic sequences. Sequence 1 (Callovian - lowermost Kimmeridgian) comprises the initiation of the Central Graben. Sequence 2 (lower Kimmeridgian lower Portlandian) comprises the initiation of the Terschelling Basin. During sequence 3 (upper Portlandian - Ryazanian) the Dutch offshore is draped by a regional transgression. In this presentation the enhanced exploration potential resulting from the tectono-stratigraphic approach, is exemplified by two potential play concepts.
Topics
TNO Identifier
239630
ISBN
978-90-73781-00-9
Publisher
European Association of Geoscientists & Engineers
Source title
Society of Petroleum Engineers, 68th European Association of Geoscientists and Engineers Conference and Exhibition, incorporating SPE EUROPEC 2006, EAGE 2006: Opportunities in Mature Areas, 12 June 2006 through 15 June 2006, Vienna, Conference code: 69366
Place of publication
S.l.
Pages
319-324
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