Seismic Attribute Characterization of Monteith Formation -Tight Gas Sandstones in the Western Canada Sedimentary Basin, Alberta, Canada.

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atmire.migration.oldid2329
dc.contributor.advisorAguilera, Roberto
dc.contributor.advisorLawton, Donald
dc.contributor.authorCastillo, Fernando
dc.date.accessioned2014-07-17T21:23:01Z
dc.date.embargolift2016-07-16T21:23:01Z
dc.date.issued2014-07-17
dc.date.submitted2014en
dc.description.abstractA method is presented that integrates a triple porosity model with sonic, density and resistivity logs for evaluation of tight gas formations. The interpretation takes into account results from petrographic work in the Western Canada Sedimentary Basin (WCSB), which indicate that tight rocks are comprised of different pores types including (i) intergranular, (ii) slot + microfractures, and (iii) isolated non-effective porosities. Seismic data are powerful in the exploration and production domains but a method that integrates seismic velocities and the observed triple porosity petrographic characteristics of tight gas formations is not available. This work provides the theoretical foundation and development of equations for this integration along with examples using real data from tight gas formations in the WCSB. As part of integration of seismic data and well log formation evaluation, a previously developed methodology is used for calculating a fracture index from conventional well logs. The well log attribute computations are carried out on those wells that have a minimum amount of conventional logs such as caliper, gamma ray, density, neutron, deep and shallow resistivity, micro-resistivity, compressional (P) and shear (S) sonic, and photoelectric potential (PEF) logs. Finally, a post stack seismic inversion is applied on the 2D and 3D seismic data in order to obtain quantitative rock-property description of the reservoir including density and porosity. This inversion has the potential of estimating inter-well formation resistivity, porosity and water saturation to obtain estimates of original gas in place. Under favorable conditions, the partition between effective and non-effective porosity might be estimated.en_US
dc.description.embargoterms2 yearsen_US
dc.identifier.citationCastillo, F. (2014). Seismic Attribute Characterization of Monteith Formation -Tight Gas Sandstones in the Western Canada Sedimentary Basin, Alberta, Canada. (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27736en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/27736
dc.identifier.urihttp://hdl.handle.net/11023/1641
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectGeophysics
dc.subject.classificationTight Gasen_US
dc.subject.classificationMonteithen_US
dc.subject.classificationCharacterizationen_US
dc.subject.classificationSeismicen_US
dc.subject.classificationAttributeen_US
dc.titleSeismic Attribute Characterization of Monteith Formation -Tight Gas Sandstones in the Western Canada Sedimentary Basin, Alberta, Canada.
dc.typemaster thesis
thesis.degree.disciplineGeoscience
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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