1 Ocak 2021 Dergi makalesi Açık Erişim

Gundogar, Asli S.; Ross, Cynthia M.; Jew, Adam D.; Bargar, John R.; Kovscek, Anthony R.

DataCite XML

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/235250</identifier>
  <creators>
    <creator>
      <creatorName>Gundogar, Asli S.</creatorName>
      <givenName>Asli S.</givenName>
      <familyName>Gundogar</familyName>
    </creator>
    <creator>
      <creatorName>Ross, Cynthia M.</creatorName>
      <givenName>Cynthia M.</givenName>
      <familyName>Ross</familyName>
      <affiliation>Stanford Univ, Energy Resources Engn, Stanford, CA 94305 USA</affiliation>
    </creator>
    <creator>
      <creatorName>Jew, Adam D.</creatorName>
      <givenName>Adam D.</givenName>
      <familyName>Jew</familyName>
      <affiliation>SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA</affiliation>
    </creator>
    <creator>
      <creatorName>Bargar, John R.</creatorName>
      <givenName>John R.</givenName>
      <familyName>Bargar</familyName>
      <affiliation>SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA</affiliation>
    </creator>
    <creator>
      <creatorName>Kovscek, Anthony R.</creatorName>
      <givenName>Anthony R.</givenName>
      <familyName>Kovscek</familyName>
      <affiliation>Stanford Univ, Energy Resources Engn, Stanford, CA 94305 USA</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Multiphysics Investigation Of Geochemical Alterations In Marcellus Shale Using Reactive Core-Floods</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2021</publicationYear>
  <dates>
    <date dateType="Issued">2021-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/235250</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/acs.energyfuels.1c00588</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">The interaction of reactive fracture fluid with host shale and formation water plays an important role on fractured reservoir productivity. This study explores the prominent impacts of shale-fluid reactions on flow properties using representative core-flood experiments under confining stress. Alteration of shale is monitored using time-lapse X-ray computed tomography (CT), microCT (mu CT) of samples pre- and post-reaction, and scanning electron microscopy (SEM). The imaging approach is multiscale from nm's to cm's. The samples are clay-rich and partially fractured Marcellus outcrop and carbonate-rich MSEEL (Marcellus Shale Energy and Environmental Laboratory) downhole endmembers. Both samples have distinct microcracks for probing reactive transport in fractures communicating with matrices. A reduction in krypton-accessible CT porosity and liquid permeability was observed for both samples after fracture fluid exposure. Based on SEM-EDS surface analysis, an iron-bearing precipitate formed on and near fracture openings and in the shale matrix of the Marcellus outcrop indicating partial dissolution of pyrite and/or ferruginous dolomite followed by precipitation of iron (hydro)oxide. The compiled images reveal fracture filling with migrated and/or precipitated fine particles. Significant barite scale growth was detected on the reacted MSEEL surfaces together with halite and other (hydro)oxide precipitates resulting from geochemical reactions between the basin-specific injectants and shale minerals. The MSEEL sample experienced substantial calcite dissolution and a corresponding decrease in its bulk density and microcrack openings. Experimental results presented here indicate the significance of fracture fluid composition optimization based on intrinsic shale and resident brine chemistries.</description>
  </descriptions>
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