Comment on “Greenhouse gas emissions from marine decommissioned hydrocarbon wells: Leakage detection, monitoring and mitigation strategies” by Christoph Böttner, Matthias Haeckel, Mark Schmidt, Christian Berndt, Lisa Vielstädte, Jakob A. Kutsch, Jens Karstens & Tim Weiß

Flow around fault zones in siliciclastic reservoirs based on limited available data during hydrocarbon exploration

The sealing capacity of faults is one of the main controlling factors determining column heights of hydrocarbons in structural traps and potentially bypassed gas in undrained reservoir compartments. Limited available data in early exploration phases often hampers full incorporation of fault seal analysis and fault zone permeability in...

The geological structure of the Netherlands continental shelf - Results of a detailed mapping project

In 2011, TNO-GDN concluded a 5 year geological mapping of the Netherlands Continental Shelf. In this project all public data from hydrocarbon exploration were used resulting in a major update of the dataset and a variety of deliverables available at www.NLOG.NL. The stratigraphy of more than 400 wells has been re-examined and amended where...

A Bayesian belief network approach for assessing the impact of exploration prospect interdependency: An application to predict gas discoveries in the Netherlands

Prospect interdependencies, if present and positively correlated, result in a higher standard deviation of the portfolio volumetric expectation curve, compared to a portfolio with independent prospects. This wider uncertainty range offers options for companies to increase the expected cumulative net present value (NPV) of the exploration...

New stratigraphic insights in the 'Late Jurassic' of the Southern Central Sea Graben and Terschelling Basin (Dutch offshore) and related exploration potential

Middle Jurassic - Early Cretaceous strata are a target for oil and gas exploration in the Dutch offshore. During the initial stages of the 'Late Jurassic' offshore exploration, various oil fields and a few gas fields were discovered of which only one, the F3-FB field, proved to be economically viable. In the Northern Offshore of the Netherlands,...

A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceous II: Application to an exploration well from the Dutch North Sea

Jurassic shallow marine to non-marine depositional sequences are among the most important economic targets in the North Sea. Detailed, 'high resolution' stratigraphy of these sequences has become a necessity in both predictive geological exploration models as well as in production reservoir models. In these paralic sequences, palynomorphs are...

The geometry and stratigraphic position of the Maassluis Formation (western Netherlands and southeastern North Sea)

The geometry and depositional history of the Maassluis Formation is described from an East-West oriented transect located in the west-central Netherlands and P- and Q-blocks in the Dutch offshore area. The Late Pliocene to Early Pleistocene Maassluis Formation was deposited under near coastal marine conditions. Two distinct facies are...