The sedimentary systems terminating in the Salar de Uyuni, hold modern days analogues for the Permian and Triassic thin-bedded crevasse-splay deposits. In the future, these crevasse-splay deposits could be of importance for hydrocarbon production in Northwest Europe. In this study, the possibility of using satellite data to construct geomorphological maps is investigated. In order to do this, QGIS is used to determine the watershed and river paths based on ASTER GDEM satellite data, and to classify the land cover based on Landsat 7 ETM+ satellite data. The results generated by QGIS are compared to open source available datasets and high resolution Google Earth Pro images. The watershed and river paths determined in QGIS are accurate for high relief areas. In low relief areas, the results are not trustable. Here, the watershed and river path results seems to be controlled by the errors in the ASTER GDEM data. The resolution of the used Landsat 7 ETM+ is not large enough to distinguish various rock types accurately. A map that indicates the amount of clay within the basin could be created using the Landsat 7 ETM+ images though. Lithological classification using satellite images is a promising technique, with a lot of applications. However, to perform accurate lithological classification higher resolution satellite images and more detailed lithological information is necessary.

A good understanding of the reservoir architecture of tough gas reservoirs is necessary to define their potential for the hydrocarbon industry. These tough gas reservoirs have been overlooked until now due to the high economic risks of development. These risks are mainly related to the large uncertainties that exist in the reservoir architecture. Understanding the depositional processes of crevasse-splays will help in minimizing the uncertainties in interpreting the internal depositional setting and deposition processes.
This research focuses on the mapping of thin bedded crevasse splays in a low-net-over-gross floodplain environment in the distal areas of the Huesca fluvial fan (Miocene) of the Ebro basin in Spain. This outcrop is a good analogue to the Permian Rötliegend and Triassic Bundsandstein intervals in the West Netherlands Basin. A field study of the Huesca fluvial fan is used to analyse the reservoir architecture (size, shape, spatial distribution and connectivity) of the reservoirs of fossil crevasse-splay deposits. At two outcrop locations an interval of crevasse-splay deposits is mapped, using detailed lithostratigraphical logs, a type section log, photo-panels and lateral characterizations of sand beds. With these data a correlation panel is constructed to determine the connectivity of the mapped layers, and cross-sections are made to determine the lateral continuity, vertical stacking and grain-size variations.
On a single layer level, results show both a decrease in bed thickness and in grain size from proximal to distal, related to the energy of deposition. Grain size is also related to distributary-channel proximity, decreasing away from the distributary crevasse channels. In multi-storey stacked sheets, incision of distributary channels into underlying crevasse deposits near the crevasse apex creates sand-on-sand contact. The approximation of a crevasse splay as a simple accumulation of homogeneous sheet like layers should be refined in order to lower the uncertainties in the tough gas reservoir model. A quantitative dataset for the size, shape and stacking patterns of crevasse splay sandstone is composed, which can be used as an input in static reservoir models.

Tide dominated deltas are not studied so extensively as river-dominated and wave-dominated deltas. Although, a huge amount of sediments supplied by major rivers, is stored in tide dominated deltas. Through modeling of a tide dominated delta, insight will be achieved about the influences of tidal and fluvial processes on sediment transport and deposition in these tide dominated environments. Process based modeling of tide dominated deposits makes it possible to distinguish the controls of tidal depositional processes on the depositional architecture in terms of reservoir properties. Due to the fact that tide-dominated deposits are very heterogeneous, process based modeling of these deposits could support high resolution correlation and delineation of reservoir flow units.

The purpose of this research was to study the process based sedimentation model for tidal influenced deltaic deposits when considering variable sediment load and river discharges. The objective was to model the sediment storage in the tide dominated delta and to study morphological changes in the delta at annual conditions and due to variable river discharge and sediment load.

The research method involves process based modeling with the Delft3D modeling software. Here several scenarios have been executed while varying parameters, which control river and tidal influences. The simulation results were used to study the sedimentation pattern development and morphological changes within a tide dominated delta. This research uses the Fly delta, in Papua New Guinea as case study area, with the focus on the area between the apex and the mouth of the delta.
Depth average velocity and yearly sedimentation rates were used as criteria to select the most suitable scaled sediment load scenario for the simulations.
Bed level study shows that the sedimentation rates varies within the delta, with highest sedimentation in the mid-delta area, and lowest at the channel mouth.

The morphological development shows that changes around a specific island has resulted scouring of the channel bottom at tidal conditions and deposition of coarse grained sediments along the sides of the channel. Further it was distinguished that the highest sand accumulation has been occurred at the upstream part of the island and the highest clay sedimentation at the downstream part of the island. This characterize an important difference between more fluvial-dominated deltas and tide-dominated deltas

The main problem during modeling was related to the scaling of the model according to the Fly delta geometry and flow conditions. This was caused by the Delft3D model limitations, for size and resolution of the model grid.
Overall we conclude that longer-term simulations create the possibility to study the morphological development within the delta in more detail.