Identification

Title

Relative Permeability and Flow Intermittency Measurements Using X-Ray Micro-tomography in a Complex Microporous Carbonate

Abstract

We imaged the steady-state flow of brine and decane at different fractional flows during dual injection in a micro-porous limestone using X-ray micro-tomography. We applied differential imaging on Estaillades carbonate to (a) distinguish micro-porous regions from macro-pores, and (b) determine fluid phase pore occupancy and relative permeability at a capillary number, Ca = 7.3×10-6. The sample porosity was approximately 28 %, with 7% in macro-pores and 21% in pores that could not be directly resolved (micro-porosity). We find that, in addition to brine and decane, a fraction of the macroscopic pore space contains an intermittent phase, which is occupied either by brine or oil during the hour-long scan time. Furthermore, fluid occupancy in micro-porosity was classified into three sub-phases: micro-pore space with oil, micro-pore space with brine, and micro pores partially filled with oil and brine.

Resource type

nonGeographicDataset

Resource locator

http://www.bgs.ac.uk/ukccs/accessions/index.html#item125555

function: download

http://dx.doi.org/10.5285/f899eb2f-37a4-4dec-9b59-432f11250894

name: Digital Object Identifier (DOI)

function: download

Unique resource identifier

code

http://data.bgs.ac.uk/id/dataHolding/13607417

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

originating controlled vocabulary

title

GEMET - INSPIRE themes

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Carbon capture and storage

Tomography

Permeability

Carbonates

originating controlled vocabulary

title

BGS Thesaurus of Geosciences

reference date

date type

revision

effective date

2011

Keyword set

keyword value

NERC_DDC

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2018-06-09

End position

2018-06-18

Dataset reference date

date type

creation

effective date

2018-06-18

Frequency of update

notApplicable

Quality and validity

Lineage

We have established a novel experimental and image analysis methodology to measure the relative permeability and pore occupancy in a complex micro-porous carbonate. We have demonstrated this by conducting waterflood experiments on Estaillades limestone sample at a capillary number, Ca =7.3×10-6 and performing differential imaging to distinguish macro-pore space, explicitly resolvable in the image, and micro-porosity, together with fluid occupancy. During multiphase flow we could distinguish three types of fluid occupancy in the micro-pore space II: filled with oil, filled with brine, and partially-saturated with both brine and oil present. The micro-porosity contributed significantly to the total porosity: the fully brine-saturated portion of the pore space contributed to a large initial brine saturation after primary drainage. Keywords: Micro-CT imaging; Recovery in micro-pores; Quantifying oil (phase) in micro-porosity; Relative permeability; Intermittency; Differential imaging method

Conformity

Conformity report

specification

title

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

reference date

date type

publication

effective date

2011

degree

false

explanation

See the referenced specification

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

false

explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Data format

name of format

Raw

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Responsible organisations

full postal address

London

United Kingdom

email address

not available

responsible party role

author

Metadata on metadata

Metadata point of contact

organisation name

British Geological Survey

full postal address

The Lyell Centre, Research Avenue South

EDINBURGH

EH14 4AP

United Kingdom

telephone number

+44 131 667 1000

email address

enquiries@bgs.ac.uk

responsible party role

pointOfContact

Metadata date

2021-08-31

Metadata language

eng