Skip to main content

Research Repository

Advanced Search

Andrew Aplin's Outputs (51)

Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods (2017)
Journal Article
Goodarzi, M., Rouainia, M., Aplin, A., Cubillas, P., & de Block, M. (2017). Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods. Geophysical prospecting, 65(6), 1597-1614. https://doi.org/10.1111/1365-2478.12475

Determination of the mechanical response of shales through experimental procedures is a practical challenge due to their heterogeneity and the practical difficulties of retrieving good-quality core samples. Here, we investigate the possibility of usi... Read More about Predicting the elastic response of organic-rich shale using nanoscale measurements and homogenisation methods.

Assessing the implications of tectonic compaction on pore pressure using a coupled geomechanical approach (2016)
Journal Article
Obradors-Prats, J., Rouainia, M., Aplin, A., & Crook, A. (2017). Assessing the implications of tectonic compaction on pore pressure using a coupled geomechanical approach. Marine and Petroleum Geology, 79, 31-43. https://doi.org/10.1016/j.marpetgeo.2016.10.017

Overpressure prediction in tectonic environments is a challenging topic. The available pore pressure prediction methods are designed to work in environments where compaction is mostly one dimensional and driven by the vertical effective stress applie... Read More about Assessing the implications of tectonic compaction on pore pressure using a coupled geomechanical approach.

Compaction of diagenetically altered mudstones - Part 1: Mechanical and chemical contributions (2016)
Journal Article
Goulty, N., Sargent, C., Andras, P., & Aplin, A. (2016). Compaction of diagenetically altered mudstones - Part 1: Mechanical and chemical contributions. Marine and Petroleum Geology, 77, 703-713. https://doi.org/10.1016/j.marpetgeo.2016.07.015

At low temperatures, siliciclastic mudstones compact mechanically. Above 70C, where the smectite-to-illite transformation dominates clay diagenesis, they also compact chemically, provided that excess pore water can escape. There are two prevailing co... Read More about Compaction of diagenetically altered mudstones - Part 1: Mechanical and chemical contributions.

Numerical evaluation of mean-field homogenisation methods for predicting shale elastic response (2016)
Journal Article
Goodarzi, M., Rouainia, M., & Aplin, A. (2016). Numerical evaluation of mean-field homogenisation methods for predicting shale elastic response. Computational Geosciences, 20(5), 1109-1122. https://doi.org/10.1007/s10596-016-9579-y

Homogenisation techniques have been successfully used to estimate the mechanical response of synthetic composite materials, due to their ability to relate the macroscopic mechanical response to the material microstructure. The adoption of these mean-... Read More about Numerical evaluation of mean-field homogenisation methods for predicting shale elastic response.

Stress and pore pressure histories in complex tectonic settings predicted with coupled geomechanical-fluid flow models (2016)
Journal Article
Obradors-Prats, J., Rouainia, M., Aplin, A., & Crook, A. (2016). Stress and pore pressure histories in complex tectonic settings predicted with coupled geomechanical-fluid flow models. Marine and Petroleum Geology, 76, 464-477. https://doi.org/10.1016/j.marpetgeo.2016.03.031

Most of the methods currently used for pore pressure prediction in sedimentary basins assume one dimensional compaction based on relationships between vertical effective stress and porosity. These methods may be inaccurate in complex tectonic regimes... Read More about Stress and pore pressure histories in complex tectonic settings predicted with coupled geomechanical-fluid flow models.

Evolution of porosity and pore types in organic-rich, calcareous, Lower Toarcian Posidonia Shale (2016)
Journal Article
Mathia, E., Bowen, L., Thomas, K., & Aplin, A. (2016). Evolution of porosity and pore types in organic-rich, calcareous, Lower Toarcian Posidonia Shale. Marine and Petroleum Geology, 75, 117-139. https://doi.org/10.1016/j.marpetgeo.2016.04.009

Low and high resolution petrographic studies have been combined with mineralogical, TOC, RockEval and porosity data to investigate controls on the evolution of porosity in stratigraphically equivalent immature, oil-window and gas-window samples from... Read More about Evolution of porosity and pore types in organic-rich, calcareous, Lower Toarcian Posidonia Shale.

Numerical simulation of fracking in shale rocks: current state and future approaches (2016)
Journal Article
Hattori, G., Trevelyan, J., Augarde, C., Coombs, W., & Aplin, A. (2017). Numerical simulation of fracking in shale rocks: current state and future approaches. Archives of Computational Methods in Engineering, 24(2), 281-317. https://doi.org/10.1007/s11831-016-9169-0

Extracting gas from shale rocks is one of the current engineering challenges but offers the prospect of cheap gas. Part of the development of an effective engineering solution for shale gas extraction in the future will be the availability of reliabl... Read More about Numerical simulation of fracking in shale rocks: current state and future approaches.

Observations of pore systems of natural siliciclastic mudstones (2016)
Book Chapter
Aplin, A., & Moore, J. (2016). Observations of pore systems of natural siliciclastic mudstones. In T. Schäfer, R. Dohrmann, & H. Greenwell (Eds.), Filling the gaps - from microscopic pore structures to transport properties in shales (33-44). Clay Minerals Society. https://doi.org/10.1346/cms-wls-21.3

Grains within siliciclastic muds are deposited either as flocs, in which grains are generally ,10 mm, or as single grains: “sortable silt,” generally .10 mm. When clay-size (,2 mm diameter) particles form .30% of mudstones, pore-size distributions ar... Read More about Observations of pore systems of natural siliciclastic mudstones.

Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales (2015)
Journal Article
Newport, L. P., Aplin, A. C., Gluyas, J. G., Greenwell, H. C., & Gröcke, D. R. (2015). Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales. Marine and Petroleum Geology, 71, 198-210. https://doi.org/10.1016/j.marpetgeo.2015.11.026

The Holywell Shale is part of the Carboniferous Bowland Shale Formation, identified as the main potential shale gas system in the UK. Here, we report geochemical and petrographic data from five outcrops of the Lower and Upper Holywell Shale across no... Read More about Geochemical and lithological controls on a potential shale reservoir: Carboniferous Holywell Shale, Wales.

The impact of carbonate texture on the quantification of total porosity by image analysis (2015)
Journal Article
Haines, T., Neilson, J., Healy, D., Michiea, E., & Aplin, A. (2015). The impact of carbonate texture on the quantification of total porosity by image analysis. Computers and Geosciences, 85, 112-125. https://doi.org/10.1016/j.cageo.2015.08.016

Image analysis is widely used to quantify porosity because, in addition to porosity, it can provide quantitative pore system information, such as pore sizes and shapes. Despite its wide use, no standard image analysis workflow exists. When employing... Read More about The impact of carbonate texture on the quantification of total porosity by image analysis.

First international inter-laboratory comparison of high-pressure CH4, CO2 and C2H6 sorption isotherms on carbonaceous shales (2014)
Journal Article
Gasparik, M., Rexer, T., Aplin, A., Billemont, P., DeWeireld, G., Gensterblum, Y., …Zhang, T. (2014). First international inter-laboratory comparison of high-pressure CH4, CO2 and C2H6 sorption isotherms on carbonaceous shales. International Journal of Coal Geology, 132, 131-146. https://doi.org/10.1016/j.coal.2014.07.010

An inter-laboratory study of high-pressure gas sorption measurements on two carbonaceous shales has been conducted in order to assess the reproducibility of the sorption isotherms and identify possible sources of error. The measurements were carried... Read More about First international inter-laboratory comparison of high-pressure CH4, CO2 and C2H6 sorption isotherms on carbonaceous shales.

High-pressure methane adsorption and characterization of pores in Posidonia shales and isolated kerogens (2014)
Journal Article
Rexer, T., Mathia, E., Aplin, A., & Thomas, K. (2014). High-pressure methane adsorption and characterization of pores in Posidonia shales and isolated kerogens. Energy and Fuels, 28(5), 2886-2901. https://doi.org/10.1021/ef402466m

Sorption capacities and pore characteristics of bulk shales and isolated kerogens have been determined for immature, oil-window, and gas-window mature samples from the Lower Toarcian Posidonia shale formation. Dubinin–Radushkevich (DR) micropore volu... Read More about High-pressure methane adsorption and characterization of pores in Posidonia shales and isolated kerogens.

FIB-SEM and TEM investigations of an organic-rich shale maturation series (Lower Toarcian Posidonia Shale): Nanoscale pore system and fluid-rock interactions (2013)
Book Chapter
Bernard, S., Wirth, R., Schreiber, A., Bowen, L., Aplin, A., Mathia, E., …Horsfield, B. (2013). FIB-SEM and TEM investigations of an organic-rich shale maturation series (Lower Toarcian Posidonia Shale): Nanoscale pore system and fluid-rock interactions. In W. Camp, E. Diaz, & B. Wawak (Eds.), Electron microscopy of shale hydrocarbon reservoirs (53-66). AAPG

Methane adsorption on shale under simulated geological temperature and pressure conditions (2013)
Journal Article
Rexer, T., Benham, M., Aplin, A., & Thomas, K. (2013). Methane adsorption on shale under simulated geological temperature and pressure conditions. Energy and Fuels, 27(6), 3099-3109. https://doi.org/10.1021/ef400381v

Shale gas is becoming an increasingly important energy resource. In this study, the adsorption of methane on a dry, organic-rich Alum shale sample was studied at pressures up to 14 MPa and temperatures in the range 300–473 K, which are relevant to ga... Read More about Methane adsorption on shale under simulated geological temperature and pressure conditions.

Occurrence and behaviour of dissolved, nano-particulate and micro-particulate iron in waste waters and treatment systems: new insights from electrochemical analysis (2012)
Journal Article
Matthies, R., Aplin, A., Horrocks, B., & Mudashiru, L. (2012). Occurrence and behaviour of dissolved, nano-particulate and micro-particulate iron in waste waters and treatment systems: new insights from electrochemical analysis. Journal of environmental monitoring, 14(4), 1174-1181. https://doi.org/10.1039/c2em10846a