Imperial College London

ProfessorMartinBlunt

Faculty of EngineeringDepartment of Earth Science & Engineering

Chair in Petroleum Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6500m.blunt

 
 
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Assistant

 

Ms Daphne Salazar +44 (0)20 7594 7401

 
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Location

 

2.38ARoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

269 results found

Reynolds C, Blunt MJ, Krevor SC, 2018, Multiphase Flow Characteristics of Heterogeneous Rocks From CO2 Storage Reservoirs in the United Kingdom, Water Resources Research, ISSN: 0043-1397

We have studied the impact of heterogeneity on relative permeability and residual trapping for rock samples from the Bunter sandstone of the UK Southern North Sea, the Ormskirk sandstone of the East Irish Sea, and the Captain sandstone of the UK Northern North Sea. Reservoir condition CO2-brine relative permeability measurements were made while systematically varying the ratio of viscous to capillary flow potential, across a range of flow rates, fractional flow, and during drainage and imbibition displacement. This variation resulted in observations obtained across a range of core-scale capillary number math formula. Capillary pressure heterogeneity was quantitatively inferred from 3-D observations of the fluid saturation distribution in the rocks. For each of the rock samples, a threshold capillary number, math formula, was found, below which centimeter-scale layering resulted in a heterogeneous distribution of the fluid phases and a commensurate impact on flow and trapping. The threshold was found to be dependent on the capillary number alone, irrespective of the displacement path (drainage or imbibition) and average fluid saturation in the rock. The impact of the heterogeneity on the relative permeability varied depending on the characteristics of the heterogeneity in the rock sample, whereas heterogeneity increased residual trapping in all samples above what would be expected from the pore-scale capillary trapping mechanism alone. Models of subsurface CO2 injection should use properties that incorporate the impacts of heterogeneity at the flow regime of interest or risk significant errors in estimates of fluid flow and trapping.

JOURNAL ARTICLE

Al-Khulaifi Y, Lin Q, Blunt MJ, Bijeljic Bet al., 2017, Reaction Rates in Chemically Heterogeneous Rock: Coupled Impact of Structure and Flow Properties Studied by X-ray Microtomography, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 51, Pages: 4108-4116, ISSN: 0013-936X

JOURNAL ARTICLE

AlRatrout A, Raeini AQ, Bijeljic B, Blunt MJet al., 2017, Automatic measurement of contact angle in pore-space images, ADVANCES IN WATER RESOURCES, Vol: 109, Pages: 158-169, ISSN: 0309-1708

JOURNAL ARTICLE

Alhammadi AM, AlRatrout A, Singh K, Bijeljic B, Blunt MJet al., 2017, In situ characterization of mixed-wettability in a reservoir rock at subsurface conditions, SCIENTIFIC REPORTS, Vol: 7, ISSN: 2045-2322

JOURNAL ARTICLE

Bartels W-B, Rucker M, Berg S, Mahani H, Georgiadis A, Fadili A, Brussee N, Coorn A, van der Linde H, Hinz C, Jacob A, Wagner C, Henkel S, Enzmann F, Bonnin A, Stampanoni M, Ott H, Blunt M, Hassanizadeh SMet al., 2017, Fast X-Ray Micro-CT Study of the Impact of Brine Salinity on the Pore-Scale Fluid Distribution During Waterflooding, SCA International Symposium, Publisher: SOC PETROPHYSICISTS & WELL LOG ANALYSTS-SPWLA, Pages: 36-47, ISSN: 1529-9074

CONFERENCE PAPER

Foley AY, Nooruddin HA, Blunt MJ, 2017, The impact of capillary backpressure on spontaneous counter-current imbibition in porous media, ADVANCES IN WATER RESOURCES, Vol: 107, Pages: 405-420, ISSN: 0309-1708

JOURNAL ARTICLE

Gao Y, Lin Q, Bijeljic B, Blunt MJet al., 2017, X-ray Microtomography of Intermittency in Multiphase Flow at Steady State Using a Differential Imaging Method, WATER RESOURCES RESEARCH, Vol: 53, Pages: 10274-10292, ISSN: 0043-1397

JOURNAL ARTICLE

Lin Q, Bijeljic B, Rieke H, Blunt Met al., 2017, Differential imaging of porous plate capillary drainage in laminated sandstone rock using X-ray micro-tomography

The experimental determination of representative capillary pressure curves as a function of saturation is of utmost importance for the determination of the initial reservoir fluid distribution and subsequent flow properties under production. We design an experimental procedure to image porous plate capillary drainage using X-ray micro-tomography based on differential imaging for a laminated sandstone micro core (4.86 mm in diameter). The pore structure, including the sub-resolution micro pores, was characterised and quantified using both the initial dry scan and the scan fully saturated with Potassium Iodide (KI) doped brine (30 wt%). During the porous plate capillary drainage, nitrogen (N2) was injected at a constant pressure and the capillary pressure was controlled by the pressure drop through the core sample. A full range of capillary pressure curve against saturation from 0 to 1.17 MPa is provided from the image analysis and is compared with the Special Core Analysis (SCAL) for the original core (35 mm in diameter). We are also able to discern that brine remained predominantly within the sub-resolution micro-pores, such as regions of fine lamination. Moreover, brine covering the rock grain surface and in the corners of the macro-pores can also be visualised.

CONFERENCE PAPER

Lin Q, Bijeljic B, Rieke H, Blunt MJet al., 2017, Visualization and quantification of capillary drainage in the pore space of laminated sandstone by a porous plate method using differential imaging X-ray microtomography, WATER RESOURCES RESEARCH, Vol: 53, Pages: 7457-7468, ISSN: 0043-1397

JOURNAL ARTICLE

Menke HP, Andrew MG, Vila-Comamala J, Rau C, Blunt MJ, Bijeljic Bet al., 2017, Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography, JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, ISSN: 1940-087X

JOURNAL ARTICLE

Menke HP, Bijeljic B, Blunt MJ, 2017, Dynamic reservoir-condition microtomography of reactive transport in complex carbonates: Effect of initial pore structure and initial brine pH, GEOCHIMICA ET COSMOCHIMICA ACTA, Vol: 204, Pages: 267-285, ISSN: 0016-7037

JOURNAL ARTICLE

Mosser L, Dubrule O, Blunt MJ, 2017, Reconstruction of three-dimensional porous media using generative adversarial neural networks, PHYSICAL REVIEW E, Vol: 96, ISSN: 2470-0045

JOURNAL ARTICLE

Muljadi BP, Bijeljic B, Blunt MJ, Colbourne A, Sederman AJ, Mantle MD, Gladden LFet al., 2017, Modelling and upscaling of transport in carbonates during dissolution: Validation and calibration with NMR experiments., J Contam Hydrol

We present an experimental and numerical study of transport in carbonates during dissolution and its upscaling from the pore (∼μm) to core (∼cm) scale. For the experimental part, we use nuclear magnetic resonance (NMR) to probe molecular displacements (propagators) of an aqueous hydrochloric acid (HCl) solution through a Ketton limestone core. A series of propagator profiles are obtained at a large number of spatial points along the core at multiple time-steps during dissolution. For the numerical part, first, the transport model-a particle-tracking method based on Continuous Time Random Walks (CTRW) by Rhodes et al. (2008)-is validated at the pore scale by matching to the NMR-measured propagators in a beadpack, Bentheimer sandstone, and Portland carbonate (Scheven et al., 2005). It was found that the emerging distribution of particle transit times in these samples can be approximated satisfactorily using the power law function ψ(t) ∼ t-1-β, where 0 <β < 2. Next, the evolution of the propagators during reaction is modelled: at the pore scale, the experimental data is used to calibrate the CTRW parameters; then the shape of the propagators is predicted at later observation times. Finally, a numerical upscaling technique is employed to obtain CTRW parameters for the core. From the NMR-measured propagators, an increasing frequency of displacements in stagnant regions was apparent as the reaction progressed. The present model predicts that non-Fickian behaviour exhibited at the pore scale persists on the centimetre scale.

JOURNAL ARTICLE

Raeini AQ, Bijeljic B, Blunt MJ, 2017, Generalized network modeling: Network extraction as a coarse-scale discretization of the void space of porous media, PHYSICAL REVIEW E, Vol: 96, ISSN: 2470-0045

JOURNAL ARTICLE

Reynolds CA, Menke H, Andrew M, Blunt MJ, Krevor Set al., 2017, Dynamic fluid connectivity during steady-state multiphase flow in a sandstone, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 114, Pages: 8187-8192, ISSN: 0027-8424

JOURNAL ARTICLE

Saif T, Lin Q, Bijeljic B, Blunt MJet al., 2017, Microstructural imaging and characterization of oil shale before and after pyrolysis, FUEL, Vol: 197, Pages: 562-574, ISSN: 0016-2361

JOURNAL ARTICLE

Scanziani A, Singh K, Blunt MJ, Guadagnini Aet al., 2017, Automatic method for estimation of in situ effective contact angle from X-ray micro tomography images of two-phase flow in porous media, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 496, Pages: 51-59, ISSN: 0021-9797

JOURNAL ARTICLE

Singh K, Menke H, Andrew M, Lin Q, Rau C, Blunt MJ, Bijeljic Bet al., 2017, Dynamics of snap-off and pore-filling events during two-phase fluid flow in permeable media, SCIENTIFIC REPORTS, Vol: 7, ISSN: 2045-2322

JOURNAL ARTICLE

Xie C, Raeini AQ, Wang Y, Blunt MJ, Wang Met al., 2017, An improved pore-network model including viscous coupling effects using direct simulation by the lattice Boltzmann method, ADVANCES IN WATER RESOURCES, Vol: 100, Pages: 26-34, ISSN: 0309-1708

JOURNAL ARTICLE

Al-Menhali AS, Menke HP, Blunt MJ, Krevor SCet al., 2016, Pore Scale Observations of Trapped CO2 in Mixed-Wet Carbonate Rock: Applications to Storage in Oil Fields, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 50, Pages: 10282-10290, ISSN: 0013-936X

JOURNAL ARTICLE

Alhashmi Z, Blunt MJ, Bijeljic B, 2016, The Impact of Pore Structure Heterogeneity, Transport, and Reaction Conditions on Fluid-Fluid Reaction Rate Studied on Images of Pore Space, TRANSPORT IN POROUS MEDIA, Vol: 115, Pages: 215-237, ISSN: 0169-3913

JOURNAL ARTICLE

Alyafei N, Al-Menhali A, Blunt MJ, 2016, Experimental and Analytical Investigation of Spontaneous Imbibition in Water-Wet Carbonates, TRANSPORT IN POROUS MEDIA, Vol: 115, Pages: 189-207, ISSN: 0169-3913

JOURNAL ARTICLE

Alyafei N, Blunt MJ, 2016, The effect of wettability on capillary trapping in carbonates, ADVANCES IN WATER RESOURCES, Vol: 90, Pages: 36-50, ISSN: 0309-1708

JOURNAL ARTICLE

Bajwa AI, Blunt MJ, 2016, Early-Time 1D Analysis of Shale-Oil and -Gas Flow, SPE JOURNAL, Vol: 21, Pages: 1254-1262, ISSN: 1086-055X

JOURNAL ARTICLE

Berkowitz B, Blunt M, Scher H, 2016, Preface: Special Issue in Honor of Harvey Scher's 80th Birthday, TRANSPORT IN POROUS MEDIA, Vol: 115, Pages: 209-214, ISSN: 0169-3913

JOURNAL ARTICLE

Leu L, Georgiadis A, Blunt MJ, Busch A, Bertier P, Schweinar K, Liebi M, Menzel A, Ott Het al., 2016, Multiscale Description of Shale Pore Systems by Scanning SAXS and WAXS Microscopy, ENERGY & FUELS, Vol: 30, Pages: 10282-10297, ISSN: 0887-0624

JOURNAL ARTICLE

Lin Q, Al-Khulaifi Y, Blunt MJ, Bijeljic Bet al., 2016, Quantification of sub-resolution porosity in carbonate rocks by applying high-salinity contrast brine using X-ray microtomography differential imaging, ADVANCES IN WATER RESOURCES, Vol: 96, Pages: 306-322, ISSN: 0309-1708

JOURNAL ARTICLE

Menke HP, Andrew MG, Blunt MJ, Bijeljic Bet al., 2016, Reservoir condition imaging of reactive transport in heterogeneous carbonates using fast synchrotron tomography Effect of initial pore structure and flow conditions, CHEMICAL GEOLOGY, Vol: 428, Pages: 15-26, ISSN: 0009-2541

JOURNAL ARTICLE

Muljadi BP, Blunt MJ, Raeini AQ, Bijeljic Bet al., 2016, The impact of porous media heterogeneity on non-Darcy flow behaviour from pore-scale simulation, ADVANCES IN WATER RESOURCES, Vol: 95, Pages: 329-340, ISSN: 0309-1708

JOURNAL ARTICLE

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