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Past lectures

lecture
dinner
drinks

lecture · dinner · drinks

Wednesday 27 June 2018  18:00

AAPG-PGK YP Monthly Lecture & Dinner: Geothermal Energy in the Netherlands

Organiser: YP
Lecturer: Andrea Vondrak

See YP page for details.

Location

Haagsche Kluis
Plein 20
Den Haag
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lecture
drinks

lecture · drinks

Monday 18 June 2018  17:00 - 22:00

PGK-SPE Summer BBQ 2018

Organiser: PGK-SPE
Lecturer: Henk van Lochem (Wintershall) and Pieter Bruijnen (TAQA)

Click here for more information and registration.

Location

Oscar's
Gevers Deynootweg 205
Scheveningen
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lecture
drinks

lecture · drinks

Wednesday 16 May 2018  17:00 - 19:00

PGK & PGK-AAPG YP Joint Montly Lecture: Impact of faults on fluid flow in petroleum reservoirs

Organiser: PGK & PGK-AAPG YP
Lecturer: Quentin Fisher

Jointly organized between the PGK and PGK-AAPG YP. See also here for details.

Program:
17:00-18:00: Social hour
18:00-19:00: Lecture
19:00-late: Post-lecture drinks at Cafe Hathor

Abstract:
Impact of faults on fluid flow in petroleum reservoirs

Quentin Fisher

School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK

e-mail: q.j.fisher@leeds.ac.uk

Fault-related hydrocarbon seeps and mineralisation provide ample evidence that faults sometimes act as conduits for fluid flow. Indeed, mud loses and increased rates of petroleum production frequently occur in some reservoirs at positions where well bores intersect faults. Production data from petroleum reservoirs, however, also provides strong evidence that faults sometimes also act as barriers to fluid flow. It has often been suggested that this paradoxical behaviour is related to fault activity: active faults are often regarded as being conduits for flow whereas inactive faults are regarded as being barriers to fluid flow. Examination of the microstructure of >3000 faults from >500 petroleum reservoirs throughout the world indicates, however, that factors such as stress conditions, stress history and rheology of the reservoir at the time of faulting often have a more important influence on whether a fault acts as a conduit or a barrier to fluid flow than whether or not it is active.

Optimizing production strategies and identifying unswept compartments or totally new exploration targets not only requires information on whether or not a fault will act as a barrier or conduit - it requires far more detail information on the likely flow rates that can be achieved on a range of time scales (10 to >106 years). The presentation will provide details of current methods that are used to predict likely cross-fault flow rates but more importantly how to calibrate these methods using static and dynamic data obtained from petroleum reservoirs.

Location

KIVI
Prinsessegracht 23
The Hague
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excursion
lecture
drinks

excursion · lecture · drinks

Wednesday 2 May 2018  18:30

PGK-AAPG YP: Geological City Walk Rotterdam

Organiser: PGK-AAPG YP
Guide: Timo G. Nijland (TNO)

See YP page for details.

lecture
drinks
meeting

lecture · drinks · meeting

Wednesday 18 April 2018  17:00

Monthly Lecture: Petroleum Geology of Trinidad

Organiser: PGK
Lecturer: Harry Doust

Program:
17:00 - 18:00: Social hour
18:00 - 19:00: Lecture by Harry Doust
19:00 onwards (after drinks at own expense at Cafe Hathor)

Abstract:
Trinidad-all geology is there!
How is it that in spite of its small size (barely 5000km2!) the island of Trinidad, situated at the southeastern corner of the Caribbean Sea, has punched so far above its weight in the development of so many geological concepts? From the 16th century onwards natural scientists have been fascinated by its geology and, through the 20th century generations of outstanding geologists, driven by the imperatives of petroleum exploration have worked on unravelling the complex stratigraphy and tectonics: Their success made Trinidad a hugely important strategic source of petroleum in the early part of the century, not least during World-War II. Among the most creative and celebrated of geologists to have worked there were Hans Kugler and Hans Bolli who, in the post-war years made ground-breaking advances in stratigraphic correlation based on planktonic foraminifera, which they then applied to interpreting the complex subsurface thrust structures. In their hands Trinidad became a classic geological laboratory, producing innovative concepts, many of which were years ahead of their time. What impresses the new-comer to the island is how closely structural and stratigraphic developments are linked. Following Mesozoic to Early Tertiary rifting and passive margin cycles, Late Tertiary to Quaternary development has been dominated by compression and wrenching as the eastward progressing collision zone between the South American and Caribbean plates impinged on the area. As a result we see a whole range of geologically young tectonic and  sedimentary features, freshly served for us to examine. In this talk I will review the basin evolution in its regional context and, making use of subsurface interpretations based on surface geology, seismic and well data from petroleum exploration, examine the variety of basin cycle types seen in the country and its surrounding offshore area. Naturally, we will not forget to highlight Trinidad's most famous landmark, the La Brea pitch lake, perhaps the most celebrated oil seepage of all.

Location

KIVI
Prinsessegracht 23
2514 AP
Den Haag
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lecture
meeting

lecture · meeting

Wednesday 11 April 2018  18:30

PGK-AAPG YP Lecture: How sweet is your shale?

Organiser: PGK-AAPG YP
Lecturer: Jan ter Heege (TNO)

PGK-AAPG YP event. See YP page for more details.

How sweet is your shale? A story about the uncertain potential, problematic recovery and public concerns of shale gas development in Europe.

Location

Shell HQ
Carel van Bylandtlaan 16
Den Haag
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Downloads

AbstractApr11.docx
excursion
lecture
drinks

excursion · lecture · drinks

Wednesday 11 April 2018 - Thursday 24 May 2018  

PGK-AAPG YP - Activities in April & May 2018

Organiser: PGK-AAPG YP

See YP pages for details.

lecture
drinks
meeting

lecture · drinks · meeting

Wednesday 21 March 2018  17:00

Monthly Lecture: Rock fracturing in the laboratory: Results on fracture propagation in layered media and predicting the onset of fracturing

Lecturer: Auke Barnhoorn

Program:
17:00-18:00 - social drinks
18:00-19:00 - Lecture by Auke Barnhoorn
19:00 onwards (after drinks at own expense at Cafe Hathor)

Auke Barnhoorn is Assistant Professor in Applied Geophysics and Petrophysics, Department of Geoscience and Engineering, Delft University of Technology

Abstract:

Fractures play an important role in the subsurface because they potentially are preferential pathways for fluid flow in naturally fractured reservoirs, they can compartmentalise reservoirs and they play an important role in seismic events. In addition, fractures can be created during well stimulation. In order to accurately predict the efficiency of flow along fractures the characteristics of the formed fracture networks is required. Characteristics such as fracture apertures and fracture orientations are important, but also the connectivity of the formed network. In Delft we focus in our laboratory research on the evolution of the fracture network to predict how fractures grow and connect through heterogeneous rocks and whether we can use seismic monitoring techniques to determine when and where these fractures start to grow.

In this presentation I will show two aspects of the research we are currently performing at TU Delft on experimental rock fracturing. In the first part of the presentation I will show the results on fracture propagation in layered siliciclastic rocks. We have selected various quartz-rich rock types which exhibit a large range of rock strength. By combining those samples we created layered samples in which a large range of mechanical contrast between the layers is present. We show that fractures formed in the weak layer sometimes propagate into the strong layer even at stress conditions in which fracturing of the strong layer was not expected. At other conditions, fractures remain contained within the weak layer. We can know predict at what depths in layered reservoirs this occurs. This has consequences for increased connectivity between layers in a reservoir or in other circumstances loss of integrity of the sealing layer.

The second part of the presentation shows how we use the analysis of the wave forms of acoustic waves that we send through the rock samples while they are fracturing. By analysing the change in wave amplitude of the wave and the scattering potential of the wave, we show that the technique is sensitive enough to detect the formation of the first microfractures in the samples. These first microfractures precede the formation of the large failure planes which are accompanied by the release of seismic energy. It may thus have the potential to be used as a predicting tool to determine the onset of seismicity in materials and reservoirs.

Location

KIVI
Prinsessegracht 23
2514 AP
Den Haag
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