Imperial College London


Faculty of EngineeringDepartment of Earth Science & Engineering

Advanced Research Fellow



c.jacquemyn Website CV




350Royal School of MinesSouth Kensington Campus






Grid-Free Surface-based reservoir modelling

"My geology is too complex for my grid"

Surface-based modelling is a new approach to modelling subsurface heterogeneity and flow simulations. Surface-based reservoir modelling uses a boundary representation approach in which ALL heterogeneity of interest (structural, stratigraphic, sedimentological, diagenetic) is modelled by its bounding surfaces, independent of any grid. This allows efficient creation of geological models without the limitations of pre-defined grids (goodbye to stairstepping, pinchout cells, connectivity loss and fine-to-coarse grid upscaling).

Surface-based modelling and simulation vs. conventional cornerpoint grid approaches

The simple example above shows the difference between surface-based modelling & simulation and conventional approaches of exactly the same geometry. The thinner high-permeability channels at the top are completely bypassed by conventional simulation whereas they act as thief zone when they are preserved.


Creating models of the subsurface can be a time-consuming and challenging effort. When testing out different hypotheses, scenarios or geological interpretations, such long and slow workflows are not the ideal tool to use. Rapid Reservoir Modelling (RRM) is a software tool that allows to sketch geological interpretations in 3D to quickly produce a model/prototype of the features of interest. Key static and dynamic parameters (volumetrics, partitioning, time-of-flight) are then computed to assess and compare the impact of e.g. the current interpretation or well patterns. New prototypes can be sketched and results computed within minutes. 


Quantification of geological phenomena
3D spatial distribution and geometry of sedimentary facies and diagenesis
Carbonate sedimentology and diagenesis
Remote sensing and 3D outcrop model integration
Impact of diagenesis on petrophysical properties

Latemar lithology distribution
The animation above shows how lithology is extracted from a 3D outcrop model of the Latemar (Dolomites, N-Italy). The distribution of dolomite (red), limestone (blue) and mafic dikes (yellow) is groundtruthed with >950 rock samples (green) that also provided petrophysical and geochemical properties.

Previous Research projects

Designing geothermal WELl representation for Surface-based modelling

Flow simulation of surface-based reservoir models with dynamically adaptive meshes requires accurate well representations. The challenge was to design a well representation that is flexible to capture any complex well trajectories and branching of (multi)laterals, while also being preserved as computational meshes are updated throughout simulations. This was originally set up for geothermal reservoirs, but is applicable to any type of flow simulation.

Storm scours in Arab-D

Rudstone-filled scours in the Jurassic Arab-D Mb. are likely to have an important impact of flow behaviour. We studied outcrop analogues in Saudi Arabia to understand the origin of these deposits and quantify their geometry and related facies distribution (see results here). The impact on flow behaviour is tested by implementing these results into surface-based reservoir models for flow simulation, a new approach to create grid-free geologically-realistic models

Outcrop - Interpretation - Flow simulation


Research Fellow, dept. of Earth Science & Engineering, Imperial College London (2019 - present)

Research Associate, dept. of Earth Science & Engineering, Imperial College London (2013 - 2019)

PhD, dept. of Earth and Environmental Sciences, KU Leuven, Belgium (2009-2013)

Research Assistant, dept. of Earth and Environmental Sciences, KU Leuven, Belgium (2007-2013)

MSc, Mining & Geotechnical Engineering, KU Leuven, Belgium (2002-2007)

Selected Publications

Journal Articles

Jackson CA-L, Magee C, Jacquemyn C, 2020, Rift-related magmatism influences petroleum system development in the NE Irish Rockall Basin, offshore Ireland, Petroleum Geoscience, Vol:26, ISSN:1354-0793, Pages:511-524

Jacquemyn C, Jackson MD, Hampson GJ, 2019, Surface-based geological reservoir modelling using grid-free NURBS curves and surfaces, Mathematical Geosciences, Vol:51, ISSN:1874-8953, Pages:1-28

Onyenanu GI, Jacquemyn CEMM, Graham GH, et al., 2018, Geometry, distribution and fill of erosional scours in a heterolithic, distal lower shoreface sandstone reservoir analogue: Grassy Member, Blackhawk Formation, Book Cliffs, Utah, USA, Sedimentology, Vol:65, ISSN:0037-0746, Pages:1731-1760

Jacquemyn C, Jackson MD, Hampson GJ, et al., 2018, Geometry, spatial arrangement and origin of carbonate grain‐dominated, scour‐fill and event‐bed deposits: Late Jurassic Jubaila Formation and Arab‐D Member, Saudi Arabia, Sedimentology, Vol:65, ISSN:0037-0746, Pages:1043-1066

Zhang Z, Geiger S, Rood M, et al., 2017, A Tracing Algorithm for Flow Diagnostics on Fully Unstructured Grids With Multipoint Flux Approximation, SPE Journal, Vol:22, ISSN:1930-0220, Pages:1946-1962

Salinas P, Pavlidis D, Xie Z, et al., 2017, Improving the robustness of the control volume finite element method with application to multiphase porous media flow, International Journal for Numerical Methods in Fluids, Vol:85, ISSN:1097-0363, Pages:235-246

Jones RR, Pearce MA, Jacquemyn C, et al., 2015, Robust best-fit planes from geospatial data., Geosphere, Vol:12, ISSN:1553-040X, Pages:196-202

Jacquemyn C, Huysmans M, Hunt D, et al., 2015, Multi-scale 3D distribution of fracture- and igneous intrusion- controlled hydrothermal dolomite from digital outcrop model, Latemar platform, Dolomites, northern Italy, AAPG Bulletin, Vol:99, ISSN:0149-1423, Pages:957-984

Jacquemyn C, El Desouky H, Hunt D, et al., 2014, Dolomitization of the Latemar platform: Fluid flow and dolomite evolution, Marine and Petroleum Geology, Vol:55, ISSN:0264-8172, Pages:43-67

Jacquemyn C, Swennen R, Ronchi P, 2012, Mechanical stratigraphy and (palaeo-) karstification of the Murge area (Apulia, southern Italy), Special Publication - Geological Society of London, Vol:370, ISSN:0305-8719, Pages:169-186

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