Production analysis of the fractured Zechstein-2 Carbonate Member in NE Netherlands: A dual porosity model approach

The Zechstein carbonates are an established petroleum play in North-West Europe including the Netherlands. Several undrilled Zechstein buildups have been identified around the Elbow Spit High in the northern part of the North Sea with GIIPs ranging from 1 to 109 m3. Since only few wells penetrate the Zechstein carbonates in this area, little...

Multiscale Restriction Smoothed Basis Method for Fractured Porous Media (F-MsRSB)

This thesis proposes a novel multiscale method for simulating fluid flow in fractured porous media. Broadly speaking, this pertains to oil, gas and geothermal energy reservoirs.

Evaluation of the application of truck trolley systems on costs and fuel emissions in a Swedish open pit copper mine

This thesis evaluates the impact of various haulage systems on the desired production objectives, energy costs, and fuel emissions. The transportation of ore and waste to the dumps could be either done by conventional trucks or by a truck trolley system. The economic analysis for stage S3 shows that the truck trolley system can increase the CPV...

Representative Models for History Matching and Robust Optimization

Seismic bearing capacity of shallow foundations in Groningen: A method comparison study

The induced earthquakes in the north of the Netherlands cause problems for the shallow foundations. At this moment there is no generally accepted way to deal with these earthquakes. The NPR advises a combination of two methods to calculate the seismic bearing capacity of shallow foundations. In order to find out if this procedure is legitimately...

36 Component Seismic Data: Investigating Translational and Rotational Components in Exploration Seismology

In conventional multicomponent seismic exploration, the wavefield is recorded by measuring translational motions in three directions using three-component sensors. A novel approach in land seismic acquisition is to additionally record the rotational components of the wavefield around the various Cartesian axes and to combine them with...

Merging active and passive surface wave data with interferometry by multidimensional deconvolution

Seismic interferometry is a technique by which the Green’s function (or impulse response) between two receivers can be acquired from the crosscorrelations of wavefield responses at these receivers. Recent developments of this method has led researchers to exploit active as well as passive seismic wavefields to retrieve surface wave Green’s...

Seismo-acoustic characterization of the ambient noise field

Atmospheric ambient noise (microbaroms) as well as crustal ambient noise (microseisms) both generated form non-linear interactions between ocean waves have been observed on co- located arrays to analyse the atmosphere and the source mechanism. Data has been provided by NORSAR for the month of January to make this analysis. Beamforming and Fisher...

Semi-automatic core characterisation based on geochemical logging data

Textural variations in sediment are considered to be one of the primary controls on the geochemical composition. This relation has been widely exploited for the climatological interpretation of unconsolidated Quartenary sediment cores. Despite the common objectives in respectively unconsolidated and consolidated sedimentological studies, for the...

A poro-elastic model for triggering of production-induced earthquakes in the Groningen natural gas field by abrupt changes in well rates

Over the past decade, a steep increase in the number of seismic events has been observed in the Groningen gas producing region of the Northern Netherlands. It is generally accepted that these are induced by compaction of the reservoir rock due to extensive field depletion, causing a buildup of strain energy which may be released seismically when...

Arching in basal reinforced piled embankments - Validation of the concentric arches model

Infrastructural projects such as roads and railway tracks are usually built on an embankment of sand or granular material. When building on soft soils, the prevention of differential settlements and resulting damage is traditionally done by including a long consolidation period in the construction process. One method to decrease construction...

A wave-equation based AVO inversion of VSP and surface seismic data

Anisotropic traveltime inversion of hard rock targets: Synthetic and Field Study at the Grimsel Test Site

Seismic forward modelling of rock and uid properties in carbonates: Reducing uncertainty in data-poor environments

The main challenge in frontier and near-field exploration is the limited availability of data to interpret the subsurface. In the absence (or prior to drilling) of an appraisal well, possibly only seismic data and prior geology knowledge are at hand. In such data-poor environments, techniques are required that are able to quickly test large...

Implementation and inspection of a high-cycle accumulation model

The prediction of permanent deformation accretion in granular materials as a result of long-term cyclic loading is a complex challenge that receives great attention in engineering fields, including infrastructural design and design of offshore wind turbines. Many models have been proposed in the past which aim to predict this cyclic deformation...

Soft Boundary Effects (SBE) on the Behaviour of a Shallow Foundation

The increase in complexity of geotechnical problems demanded for more advanced physical modelling and instrumentation approaches. Physical modelling under normal gravity (1g) or in centrifuge has been an important instrument to overcome various scale issues that govern soil related experiments. However, limitations in the size, especially for...