Go back to main page

  • Senior Lecturer, Sedimentary Geology
 
 


Degrees

  • Postdoc Utrecht University (2008)
  • Postdoc Institute of Earth Sciences Jaume Almera (2004)
  • Postdoc University of Rouen (2002)
  • PhD. Delft University (1999)
  • MSc. Free University Amsterdam (1991)
  • BSc. Free University Amsterdam (1987)

Other

  • Databases: MS Access
  • Data analysis: Qinsy (multibeam), Coda (sidescan sonar), Sandphox (photogrammetry), Microvision (image analysis)
  • Programming languages: C++, Matlab, Visual Basic
  • Numerical modelling: Stars, Imex, Tao, Cascade
  • GIS: ArcView, MapInfo, Terramodel
  • Graphic software: Photoshop, Illustrator, Autocad, Coreldraw, Canvas, Grapher
  • Webdesign: Golive, Dreamweaver, Davilex, PsPad, TsLite
  • Video editing: Videomach, VirtualDub
 

  • Geomorphology and architecture of deltaic systems
  • Stratigraphy (Sequence-, Cyclo-) as response to Tectonics, Eustasy, Supply
  • Sediment supply as response to Tectonics, Milankovitch and source rock
  • Modelling (Physical-, Analytical-, Numerical-)
  • Theoretical Geology
 
Physical modelling in a flume tank (Stellenbosch University & Utrecht University)
Physical modelling of delta systems is an efficient means of simulating the response of a delta system and to understand its response to ambient conditions in terms of facies- and sequence analysis. The objective is to define tools, that can be used in field studies for well-logs, outcrops and seismic sections alike.
 
Field analysis of the Karoo Sequence (Stellenbosch University)
The Karoo Sequence is particularly well exposed from river to basin and hence yields prospects to understand the system from source-to-sink. The objective is to relate the system in terms of facies- and sequence analysis and to test the tools that were found in the physical models.
 

Numerical modelling (Stellenbosch University & Bochum University)
A numerical model is an efficient means to test the sensitivity of a delta system to the input signal. Numerical models are to be run for the full range of values for tectonics, eustasy, and supply. The objective is to find prototypes and critical values.

 

The response of shelf-deltas to cyclic variation in eustasy and sediment supply.
We submit shelf-deltas in flume-tank experiment to cyclic variation of sealevel (E) and sediment supply (S) for a number of prototypes/endmembers under constant tectonic subsidence (Y). The scenarios include: S in-phase with E, S out-of-phase with E, constant S, highly frequent S. The next experiment will probably include pulsed sediment input. The objective is to quantitatively define the response of architecture to variations in controlling parameters and to find tools to solve the inverse problem from the field.
We will be using field examples from Crete, Spitsbergen and the Karoo to evaluate and test our hypotheses.
 
Opportunities for Postgraduate Students
For each project, the level (Hons, MSc, PhD), type (desk, lab, field), title and outline are indicated. The outline gives the general idea of the project. Candidate students should apply for the given level of study, write a proposal on their project of choice, send that to Dr. Mikes and make an appointment to discuss it. Criteria for admission to a project are: qualifications / marks, motivation and the project proposal. If accepted by both the Department and Faculty, the department will supply a letter of acceptance conditional upon availability of funding for the project. Where required, funding for the project will be covered by Dr Mikes, as supervisor. The procedure for obtaining a bursary depends on the level. For Honours, bursaries should generally be sought by the candidate externally; possible alternatives can be discussed with Dr Mikes. For MSc, bursaries should also be sought by the candidate externally; additional funding will be provided by Dr Mikes. For PhD, bursaries will be provided by Dr Mikes.
 
P10/1 – PhD (desk) – Theoretical study of deltaic systems
How does a (deltaic) depositional system behave? How does it grow and respond to external drivers? One objective of this project is to run the ‘intelligent’ system “?Brain” for a large number of deltaic scenarios. The other is to create the database for that system “?Base”. The next step would be to analyse the organisation in the results. The ultimate question is: Can we recognise the signature of driving processes in the field by particular features?
 
P10/2 – PhD (lab) – Physical experiments of deltaic systems
How does a (deltaic) depositional system behave? How does it grow and respond to external drivers? One objective of this project is to run physical experiments in a flume tank “Eurotank” or “?Tank” for a number of ‘prototype’ deltaic scenarios. The other is to compare the results with those from the numerical scenarios from “?Brain”. The ultimate question is: What are the deterministic and probabilistic parts of events in a deltaic system? The primary concern in this project shall be the scalability of the system.
 
P10/3 – PhD (desk) – Analysis of sequence stratigraphy
What is “sequence analysis”? Can it describe the temporal evolution of a (deltaic) depositional environment? One objective of this project is to analyse the assumptions on which “sequence stratigraphy” is built. The other is to test the sensitivity of those assumptions to the results of “sequence stratigraphy”. The underlying question of this project is: Is deltaic behaviour predictable? If so, which part of it is deterministic, which is probabilistic? And if we can predict the future of a (deltaic) system, can we ‘predict’ its past?
 
P10/4 – PhD (field) – Facies/Basin analysis of Tanqua-Karoo depocentre
What did the depositional system of the Tanqua-Karoo depocentre look like and how did it fill the basin? The first objective of this project shall be to establish existing tectonic models for this basin and to analyse their probability. The other shall be to construct possible 4D facies models for this depocentre. A scenario should be designed for all combinations of tectonic scenarios and facies scenarios. The model should be constrained as much as possible by chrono-stratigraphic dates.
 
P10/5 – PhD (field) – Past/Future behaviour of Bot Valley
How is the Bot Valley evolving? One objective of this project is to establish how the Bot Valley formed and was filled. The other is to predict how it will evolve in the future. The history of the valley shall be reconstructed from subsurface data (cores and seismics), whereas the future of the valley should be estimated from surface data (topography and bathymetry). The past should give an idea of the response of the system to geologic events. The future should give an idea of the sensitivity of the system to climate change. The timing of tectonic events should be reconstructed from Apatite fission-track analysis of the surrounding mountains.
 
P10/6 – PhD (desk) – Upscaling
How to characterise a reservoir? The objective of this project is to design a procedure to build a reservoir model. It shall then be tested by running it and existing procedures on a producing reservoir. The procedure should address the uncertainty of all elements, i.e. geological model, poroperm samples, data types (log, core, outcrop). The underlying question of this project is: How to build a reservoir model that incorporates fluid-flow behaviour of bedding?
 
M10/1 – MSc (desk) – Design of deltaic system simulator.
What is a (deltaic) depositional system? How should one build a model to simulate it? What should one measure to compare one scenario with another? One objective of this project is to design an ‘intelligent’ system “?Brain” that both creates a database and draws from it. The other is to design the database for that system “?Base”. The rules for such a system should be physically sound and mathematically simple. The main objective is to establish all driving processes and their weight on one hand and to describe the deterministic and probabilistic parts of each event on the other.
 
M10/2 – MSc (lab) – Physical experiments of deltaic systems (Hon – Literature review)
Analysis of physical experiments of deltaic systems in a flume tank. Several scenarios have been run for a scaled deltaic system on a passive continental margin under controlled and varying external drivers. The evolution of the system is to be reconstructed from digital elevation models during the model steps. The resulting architecture is to be analysed using lacquer peels from the end of the experiment. The aim is to analyse the signature of each driver on the geometry and facies of the system.
 
M10/3 – MSc (desk) – Numerical simulation of deltaic systems (Hon – Literature review)
Analysis of numerical simulations by the delta-simulator “?Brain”. A large number of scenarios is to be run and the results are to be analysed and compared to those from physical experiments from the flume tank “?Tank”. Digital elevation models, cross-sections and vertical sections are to be used to describe and compare the different scenarios. The main concern of this project shall be to determine which features of the delta to describe.
 
M10/4 – MSc (desk) – Reservoir characterisation (Hon – Literature review)
Analysis of a reservoir model. An upscaling procedure is to be tested on a producing reservoir. In order to do so the existing data from that reservoir need to be analysed and the reservoir model needs to be (re-)built so as to suit the procedure. Logs, cores, seismics and existing reservoir model need to be critically evaluated and the statistical methods and assumptions in all the upscaling methods need to be compared. The critical concern of this project shall be analysis of the uncertainties of each of the procedures.
 
M10/2 – MSc (field) – Tectostratigraphic evolution of Bot Valley
How did the Bot Bot Valley form? One objective of this project is to establish how the Bot Valley formed. The other is how it was filled. The tectonic formation of the valley shall be reconstructed from apatite fission-track from the surrounding mountains. The basin fill shall be analysed from subsurface data (cores and seismics). The aim of this project is to gain insight in the behaviour of the system on the geologic time scale.
 
M10/3 – MSc (field) – Geomorphology of Bot Valley
How will the Bot Valley evolve? One objective of this project is to establish the geomorphology of the present Bot Valley. The other is to predict how it will evolve in the future. The present geomorphology shall be reconstructed from digital elevation models and surface samples. The future of the valley shall be estimated by varying the base-level according to existing climatic scenarios. The aim of this project is to learn the sensitivity of the system to climate change.
 

M10/4 – MSc (lab) – Physical experiments of flocculation (Hon – Literature review)
How do flocs form? One objective of this project is to create flocs in a controlled laboratory environment for a range of typical ambient conditions. The other is to analyse the data and find an organisation in them. Part of this project should be a critical evaluation of existing theory around flocculation and the methods used to sample and analysis the data. The aim of this project is to gain insight into floc growth and decay as function of drivers.

 
M10/5 – MSc (desk) – Numerical simulation of flocculation (Hon – Literature review)
How do flocs form? One objective of this project is to simulate the process of flocculation in a numerical simulator for a large range of ambient conditions. The other is to analyse the data and to compare them to data from laboratory flocculation experiments. The algorithms for flocculation shall be split into two; a deterministic and a probabilistic part. This project shall serve to explore the sensitivity of flocculation to the underlying physical/mathematical models.
 
H10/1 – Hon (desk) – Lacquer peel analysis from physical delta experiments
Analysis of physical experiments of deltaic systems in a flume tank. Lacquer-peels from scaled physical experiments are to be analysed in order to describe the 2D geometric behaviour of the system. The underlying idea of this project is to use objective criteria to describe the evolution of a system, i.e. shoreline migration, stratal expression, thickness. Given the fact that the drivers are known and controlled during the experiments, the output can be tested to the input. The aim of this project is therefore to establish whether there is a consistent relation between input and output on one hand and whether 2D sections are capable of describing a 3D system.
 
H10/2 – Hon (desk) – Digital elevation models analysis from physical delta experiments
Analysis of physical experiments of deltaic systems in a flume tank. Digital elevation models from scaled physical experiments are to be analysed in order to describe the 3D geometric behaviour of the system. The underlying problem of this project is the inherent 3D nature of the system. Given the fact that the system is known in 3D we can test its behaviour to existing theories. The aim of this project is therefore to establish the deterministic and probabilistic parts of a deltaic system in 3D.
 
H10/3 – Hon (desk) – Flocculation data analysis
Analysis of floc data. Floc data from physical experiments, field surveys and numerical simulation is to be collected and compared. The objective of this project is to establish systematic behaviour of floc size as a function of ambient conditions. The primary concern in this project is to ascertain that data are comparible, which can be only guaranteed if all known drivers are controlled and/or measured. This shall be the main obstacle in this work.
 
H10/4 – Hon (desk) – Floc function analysis
Analysis of floc function. All existing floc functions are to be collected and tested to existing data. The objective of this project is to establish the value of each of the functions in the following terms: precision, generality, simplicity. The primary concern in this project shall be how to compare data from different data sets. But the aim shall in any case be a critical evaluation of the applicability of each of the functions.
 

Mikes D., and J. Bruining, 2006, Standard flow cells to incorporate small-scale heterogeneities (crossbedding) into reservoir models, Marine and Petroleum Geology, 23, 9-10, pp. 979-993.
 
Mikes D., 2006, A sampling procedure to incorporate small-scale heterogeneiteis in reservoir models, Marine and Petroleum Geology, 23, 9-10, pp. 961-977.
 

Mikes D., and C.R. Geel, 2006, Standard facies and flow unit models to incorporate all heterogeneity levels in a reservoir model; an integration of geological and reservoir models, Marine and Petroleum Geology, 23, 9-10, pp. 943-959.

 
Mikes D., O.H.M. Barzandji, J. Bruining, and C.R. Geel, 2006, Upscaling of flow units for reservoir flow incorporating small-scale heterogeneities, Marine and Petroleum Geology, 23, 9-10, pp. 931-942.
 

Mikes D., R. Verney, M. Belorgey, and R. Lafite, 2004, Controlling factors in estuarine flocculation processes: experimental results with material from the Seine Estuary, Northwestern France, Journal of Coastal Research, SI 41, pp. 82-89.

 
Manning A.J., K.R. Dyer, R. Lafite R., and D. Mikes, 2004, Flocculation measured by video based instruments in the Gironde Estuary during the european commission SWAMIEE project. Journal of Coastal Research. SI 41, 58-69.
 
Mikes D., 2002, Upscaling of small-scale heterogeneities for reservoir modelling, PhD-Thesis, University of Technology Delft, pp. 178.
 
Mesnage V., S. Bonneville, J.P. Dupont, D. Lefebvre, and D. Mikes, 2000, Filling of a wetland (Seine estuary, France): natural eutrophication or anthropogenic process? A sedimentological and geochemical study of wetland organic sediments, Hydrobiologia, 475/476, 423-435, in: Nutrients and Eutrophication in Estuaries and Coastal Waters, E. Orive, M. Elliott & V.N. de Jonge (eds.), Kluwer Academic Publishers.
 
Waal, W.W. van de, D. Mikes, and J. Bruining, 1998, Inertia factor measurements from pressure-decay curves obtained with probe-permeameters, In Situ, volume 22 (40) 339-371.
 
 

 
Current Postgraduate Students
Name
Jan de Vries
Degree MSc Registered at Utrecht University - Co-supervisor
Thesis Title Delta architecture prototypes for varying sedimenty supply signals; comparison of flume tank and field
Current Status Active

Name
Gareth Reynolds
Degree MSc
Thesis Title Poroperm sampling in the Tanqua depocentre
Description What would a model of the Tanqua-Karoo depocentre be like if it were a reservoir? The objective of this project is to make a reservoir model and populate it with data, i.e. reservoir characterisation. This part is to include a critical evaluation of uncertainties in poroperm sampling. The resulting reservoir model is to be compared to a reservoir model from a similar producing reservoir. This part should include a critical comparison between outcrop and subsurface in general and between field and reservoir example of this study in particular.
Current Status Active

Name
Abosede Olubukunola Alao
Degree MSc
Thesis Title Basin fill of the Tanqua depocentre
Description How did the depositional system of the Tanqua-Karoo depocentre fill the basin? The first objective of this project shall be to establish existing tectonic models for this basin and to analyse their probability. The other shall be to construct possible 4D basin fill models for this depocentre for at least two tectonic scenarios. A crucial concern should be to find chrono-stratigraphic indicators.
Current Status Active

Name
Malikah Patel
Degree MSc
Thesis Title Reservoir model of the Tanqua depocentre
Description What did the depositional system of the Tanqua-Karoo depocentre look like? The first objective of this project shall be to establish existing facies models deltaic depositional environments. The other shall be to construct possible 4D facies models for this depocentre for at least two depositional scenarios. The main aim should be to find indicators for depositional setting.
Current Status Active

Name
Oluwaseun Fadipe
Degree MSc Registered at the University of the Western Cape - Co-supervisor
Thesis Title Reservoir characterisation of the Orange River
Current Status Active

Name
Jochem Bijkerk
Degree MSc Registered at Utrecht University - Co-supervisor
Thesis Title Physical experiments of positive and negative lag delta systems
Current Status Active
 
Current Honours Students
Year Name Project Title
2009 Mareli Grobbelaar Geomorphology of the Bot Estuary
2009 Zanli van Zyl Tectostratigraphy of the Bot Estuary
2009 Wasiu Sonibare Reservoir model of the Tanqua depocentre
2009 Courage Nofu Cyclostratigraphy in the Tanqua depocentre
 
Graduated Postgraduate Students

Name
N. Nouwens
Degree MSc Delft University of Technology
Thesis Title Computer simulation of capillary entrapment in cross-bedded reservoirs
Current Status Graduated 1997

Name
W.W. van de Waal
Degree MSc Delft University of Technology
Thesis Title Inertia factor measurements from pressure-decay curves obtained with probe-permeameters
Current Status Graduated 1998

Name
A. Wiefkers
Degree MSc Delft University of Technology
Thesis Title Minipermeametry, millimetre scale characterisation of cross-bedded sandstone for the modelling of capillary effects in oil displacement by water
Current Status Graduated 1995

Graduated Honours Students
2008 M. Gademan Physical experiments of in-phase and out-phase delta systems (Utrecht University)