Elastic waves push organic fluids from reservoir rock

dc.contributor.author Beresnev, Igor
dc.contributor.author Vigil, R. Dennis
dc.contributor.author Li, Wenqing
dc.contributor.author Pennington, Wayne
dc.contributor.author Turpening, Roger
dc.contributor.author Iassonov, Pavel
dc.contributor.author Ewing, Robert
dc.contributor.department Chemical and Biological Engineering
dc.date 2018-02-13T22:00:16.000
dc.date.accessioned 2020-06-30T01:10:56Z
dc.date.available 2020-06-30T01:10:56Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2005
dc.date.embargo 2014-02-26
dc.date.issued 2005-07-06
dc.description.abstract <p>Elastic waves have been observed to increase productivity of oil wells, although the reason for the vibratory mobilization of the residual organic fluids has remained unclear. Residual oil is entrapped as ganglia in pore constrictions because of resisting capillary forces. An external pressure gradient exceeding an ‘‘unplugging’’ threshold is needed to carry the ganglia through. The vibrations help overcome this resistance by adding an oscillatory inertial forcing to the external gradient; when the vibratory forcing acts along the gradient and the threshold is exceeded, instant ‘‘unplugging’’ occurs. The mobilization effect is proportional to the amplitude and inversely proportional to the frequency of vibrations. We observe this dependence in a laboratory experiment, in which residual saturation is created in a glass micromodel, and mobilization of the dyed organic ganglia is monitored using digital photography.We also directly demonstrate the release of an entrapped ganglion by vibrations in a computational fluid-dynamics simulation.</p>
dc.description.comments <p>This article is from Geophysical Research Letters 32 (2005): L13303, doi:10.1029/2005GL023123. Posted with permission.</p>
dc.format.mimetype application-pdf
dc.identifier archive/lib.dr.iastate.edu/cbe_pubs/95/
dc.identifier.articleid 1092
dc.identifier.contextkey 5221472
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cbe_pubs/95
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/13598
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/cbe_pubs/95/2005_VigilRD_Elastic_waves_push_organic_fluids_from_reservoir_rock.pdf|||Sat Jan 15 02:33:40 UTC 2022
dc.source.uri 10.1029/2005GL023123
dc.subject.disciplines Biological Engineering
dc.subject.disciplines Chemical Engineering
dc.subject.keywords Geological and Atmospheric Sciences
dc.subject.keywords geological and mining engineering and sciences
dc.subject.keywords agronomy
dc.title Elastic waves push organic fluids from reservoir rock
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 86545861-382c-4c15-8c52-eb8e9afe6b75
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