A method for backward calculation of debris in a post blast scene

There is limited knowledge on deriving the strength of an explosion based on the observed explosion effects. Existing methods are based primarily on the effects of blast overpressure on surrounding structures. Window breakage and structural damage are well studied and are widely used to derive most probable explosion strengths. Other explosive...

Pressure and fluid dynamic characterisation of the Dutch subsurface

This paper presents and discusses the distribution of fluid and leak-off pressure data from the subsurface of onshore and offshore Netherlands in relation to causes of formation fluid overpressure and the permeability framework. The observed fluid pressure conditions demonstrate a clear regional difference between the southern and the north and...

Pressure and fluid flow systems in the permian rotliegend in The Netherlands onshore and offshore

Hydrodynamics-based approaches were used to characterise and analyse the present-day pressure and fluid-flow conditions in the Permian Rotliegend reservoirs in the Netherlands. These approaches involve the use of multi-well pressure– depth plots, regional all fluid overpressure maps, salinity maps, and hydraulic-head maps. The maps and plots...

Analysis of acoustic fatigue in safety relief systems

To protect installations in the gas and oil industry and process industries against overpressure the installation of relief systems is common practice. However, there have been incidents where such systems fail as a result of high dynamic loads caused by: the generation of shock waves when the relief valve is opened very instantly; the...

Integrated hydrodynamic analysis of fluid pressure and leak-off pressure distributions to evaluate seal effectiveness

Hydrodynamic methods are used to analyse the present-day fluid overpressure and leak-off pressure distributions in offshore Netherlands in combination with recently completed stratigraphic and structural maps, and knowledge on distribution and characteristics of oil and gas accumulations. This paper presents an overview of the results, including...

Dual hydraulic behaviour of the Chalk in the Netherlands North Sea

Information on the sedimentary development, seismic stratigraphy and burial compaction of the Chalk Group in the Netherlands North Sea was combined with pressure data and basin modelling to investigate the hydraulic behaviour of the Chalk Group in the Central Graben and Schill Grund High. The preliminary results of this integrated study indicate...

Estimating regional pore pressure distribution using 3D seismic velocities in the Dutch Central North Sea Graben

The application of the empirical Eaton method to calibrated sonic well information and 3D seismic interval velocity data in the southeastern part of the Central North Sea Graben, using the Japsen (Glob. Planet. Change 24 (2000) 189) normal velocitydepth trend, resulted in the identification of an undercompacted and overpressured zone within the...