Upscaling calcite dissolution rates in a tight reservoir sandstone

Publication type:
Journal article
Metadata:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000797537100001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1007/s12665-022-10399-5
eISSN
1866-6299
Externe Identifier
  • Clarivate Analytics Document Solution ID: 1I9HF
ISSN
1866-6280
Ausgabe der Veröffentlichung
11
Zeitschrift
ENVIRONMENTAL EARTH SCIENCES
Schlüsselwörter
  • Upper Rotliegend sandstone
  • Reaction kinetics
  • Geometric surface area
  • Flow-through experiment
  • X-ray microtomography
  • Vertical scanning interferometry
Artikelnummer
ARTN 303
Datum der Veröffentlichung
2022
Status
Published
Titel
Upscaling calcite dissolution rates in a tight reservoir sandstone
Sub types
  • Article
Ausgabe der Zeitschrift
81

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>Calcite is a highly abundant mineral in the Earth’s crust and occurs as a cement phase in numerous siliciclastic sediments, where it often represents the most reactive component when a fluid percolates through the rock. Hence, the objective of this study is to derive calcite dissolution rates on different scales in a reservoir sandstone using mineral surface experiments combined with vertical scanning interferometry (VSI) and two types of core plug experiments. The 3D geometry of the calcite cement phase inside the rock cores was characterized by X-ray micro-computed tomography (µXCT) and was used to attempt dissolution rate upscaling from the mineral surface to the core scale. Initially (without upscaling), our comparison of the far-from-equilibrium dissolution rates at the mineral surface (µm-mm-scale, low fluid residence time) and the surface normalized dissolution rates obtained from the core experiments (cm-scale, high fluid residence time) revealed differences of 0.5–2 orders of magnitude. The µXCT geometric surface area connected to the open pore space <jats:inline-formula><jats:alternatives><jats:tex-math>$$\left( {GSA_{{Cc,{\text{open}}}} } \right)$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mfenced> <mml:mrow> <mml:mi>G</mml:mi> <mml:mi>S</mml:mi> <mml:msub> <mml:mi>A</mml:mi> <mml:mrow> <mml:mi>C</mml:mi> <mml:mi>c</mml:mi> <mml:mo>,</mml:mo> <mml:mtext>open</mml:mtext> </mml:mrow> </mml:msub> </mml:mrow> </mml:mfenced> </mml:math></jats:alternatives></jats:inline-formula> considers the fluid accessibility of the heterogeneously distributed calcite cement that can largely vary between individual samples, but greatly affects the effective dissolution rates. Using this parameter to upscale the rates from the µm- to the cm-scale, the deviation of the upscaled total dissolution rates from the measured total dissolution rates was less than one order of magnitude for all investigated rock cores. Thus, <jats:inline-formula><jats:alternatives><jats:tex-math>$$GSA_{{Cc,{\text{open}}}}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>G</mml:mi> <mml:mi>S</mml:mi> <mml:msub> <mml:mi>A</mml:mi> <mml:mrow> <mml:mi>C</mml:mi> <mml:mi>c</mml:mi> <mml:mo>,</mml:mo> <mml:mtext>open</mml:mtext> </mml:mrow> </mml:msub> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> showed to be reasonably suitable for upscaling the mineral surface rates to the core scale.</jats:p>
Autoren
DOI
10.1007/s12665-022-10399-5
eISSN
1866-6299
ISSN
1866-6280
Ausgabe der Veröffentlichung
11
Zeitschrift
Environmental Earth Sciences
Sprache
en
Artikelnummer
303
Online publication date
2022
Datum der Veröffentlichung
2022
Status
Published
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1007/s12665-022-10399-5
Datum der Datenerfassung
2022
Titel
Upscaling calcite dissolution rates in a tight reservoir sandstone
Ausgabe der Zeitschrift
81

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