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Outputs (11)

Numerical simulation of the impact of geological heterogeneity on performance and safety of THAI heavy oil production process (2018)
Journal Article
Ado, M. R., Greaves, M., & Rigby, S. P. (2019). Numerical simulation of the impact of geological heterogeneity on performance and safety of THAI heavy oil production process. Journal of Petroleum Science and Engineering, 173, 1130-1148. https://doi.org/10.1016/j.petrol.2018.10.087

The Toe-to-Heel Air Injection (THAI) in-situ combustion process is an efficient way to extract heavy oil and bitumen. However, such reservoirs are often geologically heterogeneous. This work studied the impact of a range of different geological heter... Read More about Numerical simulation of the impact of geological heterogeneity on performance and safety of THAI heavy oil production process.

Fluid flow in a porous medium with transverse permeability discontinuity (2018)
Journal Article
Pavlovskaya, G. E., Meersmann, T., Jin, C., & Rigby, S. P. (2018). Fluid flow in a porous medium with transverse permeability discontinuity. Physical Review Fluids, 3(4), https://doi.org/10.1103/PhysRevFluids.3.044102

Magnetic Resonance Imaging (MRI) velocimetry methods were used to study fully developed axially symmetric fluid flow in a model porous medium of cylindrical symmetry with a transverse permeability discontinuity. Spatial mapping of fluid ow resulted i... Read More about Fluid flow in a porous medium with transverse permeability discontinuity.

Determination of pore network accessibility in hierarchical porous solids (2017)
Journal Article
Rigby, S. P., Hasan, M., Stevens, L., Williams, H. E., & Fletcher, R. S. (2017). Determination of pore network accessibility in hierarchical porous solids. Industrial & Engineering Chemistry Research, 56(50), 14822-14831. https://doi.org/10.1021/acs.iecr.7b04659

This paper validates the hypothesis that the supposedly non-specific adsorbates nitrogen and argon wet heavy metals differently, and shows how this unexpected effect can be actively utilised to deliver information on pore inter-connectivity. To explo... Read More about Determination of pore network accessibility in hierarchical porous solids.

Dynamic simulation of the THAI heavy oil recovery process (2017)
Journal Article
Rabiu Ado, M., Greaves, M., & Rigby, S. P. (2017). Dynamic simulation of the THAI heavy oil recovery process. Energy and Fuels, 31(2), 1276-1284. https://doi.org/10.1021/acs.energyfuels.6b02559

Toe-to-Heel Air Injection (THAI) is a variant of conventional In-Situ Combustion (ISC) that uses a horizontal production well to recover mobilised partially upgraded heavy oil. It has a number of advantages over other heavy oil recovery techniques su... Read More about Dynamic simulation of the THAI heavy oil recovery process.

Detection of the delayed condensation effect and determination of its impact on the accuracy of gas adsorption pore size distributions (2016)
Journal Article
Rigby, S. P., Husan, M., Hitchcock, I., & Fletcher, R. S. (2017). Detection of the delayed condensation effect and determination of its impact on the accuracy of gas adsorption pore size distributions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 517, https://doi.org/10.1016/j.colsurfa.2016.12.043

Macroscopic, highly disordered, mesoporous materials present a continuing challenge for accurate pore structure characterization. The typical macroscopic variation in local average pore space descriptors means that methods capable of delivering stati... Read More about Detection of the delayed condensation effect and determination of its impact on the accuracy of gas adsorption pore size distributions.

Pore Structural Characterization of Fuel Cell Layers Using Integrated Mercury Porosimetry and Computerized X-ray Tomography (2016)
Journal Article
Malik, S., Smith, L., Sharman, J., Holt, E. M., & Rigby, S. P. (2016). Pore Structural Characterization of Fuel Cell Layers Using Integrated Mercury Porosimetry and Computerized X-ray Tomography. Industrial & Engineering Chemistry Research, 55(41), 10850-10859. https://doi.org/10.1021/acs.iecr.6b01617

The pore structure of the cathode catalyst layer of proton-exchange membrane (PEM) fuel cells is a major factor influencing cell performance. The nanostructure of the catalyst layer has been probed using a novel combination of mercury porosimetry wit... Read More about Pore Structural Characterization of Fuel Cell Layers Using Integrated Mercury Porosimetry and Computerized X-ray Tomography.

Techniques for direct experimental evaluation of structure–transport relationships in disordered porous solids (2016)
Journal Article
Nepryahin, A., Fletcher, R. S., Holt, E. M., & Rigby, S. P. (2016). Techniques for direct experimental evaluation of structure–transport relationships in disordered porous solids. Adsorption, 22(7), 993-1000. https://doi.org/10.1007/s10450-016-9806-9

Determining structure-transport relationships is critical to optimising the activity and selectivity performance of porous pellets acting as heterogeneous catalysts for diffusion-limited reactions. For amorphous porous systems determining the impact... Read More about Techniques for direct experimental evaluation of structure–transport relationships in disordered porous solids.

Structure-transport relationships in disordered solids using integrated rate of gas sorption and mercury porosimetry (2016)
Journal Article
Nepryahin, A., Holt, E. M., Fletcher, R. S., & Rigby, S. P. (2016). Structure-transport relationships in disordered solids using integrated rate of gas sorption and mercury porosimetry. Chemical Engineering Science, 152, 663-673. https://doi.org/10.1016/j.ces.2016.06.057

This work describes a new experimental approach that delivers novel information on structure-transport relationships in disordered porous pellets. Integrated rate of adsorption and mercury porosimetry experiments have been used to probe the relative... Read More about Structure-transport relationships in disordered solids using integrated rate of gas sorption and mercury porosimetry.

Molecular hydrogen and catalytic combustion in the production of hyperpolarized 83Kr and 129Xe MRI contrast agents (2016)
Journal Article
Rogers, N. J., Hill-Casey, F., Stupic, K. F., Six, J. S., Lesbats, C., Rigby, S. P., …Meersmann, T. (2016). Molecular hydrogen and catalytic combustion in the production of hyperpolarized 83Kr and 129Xe MRI contrast agents. Proceedings of the National Academy of Sciences, 113(12), 3164-3168. https://doi.org/10.1073/pnas.1600379113

Hyperpolarized (hp) 83Kr is a promising MRI contrast agent for the diagnosis of pulmonary diseases affecting the surface of the respiratory zone. However, the distinct physical properties of 83Kr that enable unique MRI contrast also complicate the pr... Read More about Molecular hydrogen and catalytic combustion in the production of hyperpolarized 83Kr and 129Xe MRI contrast agents.