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dc.contributor.authorStephen, Ralph A.  Concept link
dc.contributor.authorPettigrew, Tom  Concept link
dc.contributor.authorBecker, Keir  Concept link
dc.contributor.authorSpiess, Fred N.  Concept link
dc.date.accessioned2015-06-29T20:37:39Z
dc.date.available2015-06-29T20:37:39Z
dc.date.issued2006-02
dc.identifier.urihttps://hdl.handle.net/1912/7368
dc.descriptionSeisCORK meeting, November 15 and 16, 2004, Stress/Mohr Engineering, Houston, Texas 77041-1205en_US
dc.description.abstractThe purpose of this meeting was to explore design options to simultaneously acquire borehole seismic data and hydro-geological data (pressure, temperature, fluid sampling and microbiological sampling) on a single CORK system. The scientific focus was to add a seismic component to the Juan de Fuca Hydrogeology program. By permanently installing a sensor string in the borehole our goal was to enable: l) time-lapse VSP's and offset VSP's with sufficient data quality to study amplitude versus offset, shear wave anisotropy, and lateral heterogeneity; 2) monitoring of micro- and nano- earthquake activity around the site for correlation with pressure transients. Because of the difficulty in ensuring adequate coupling through multiple casing strings we concluded that it was impractical to install the vertical seismic array with 10m spacing (50-60 nodes) that would be necessary for VSP's and time-lapse VSP's. We did describe a scenario for a vertical seismic array with approximately 100m spacing (5-6 nodes) that could be used for offset-VSP's and seismic monitoring. This uses some unique technology and involves two seismic strings: one in the annulus between the 4- 1/2" and 10-3/4" casings and one in the middle of the 4-1/2" casing.en_US
dc.description.sponsorshipFunding was provided by the National Science Foundation under Grant No. OCE-0450318.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherWoods Hole Oceanographic Institutionen_US
dc.relation.ispartofseriesWHOI Technical Memorandaen_US
dc.relation.ispartofseriesWHOI-01-2006en_US
dc.titleSeisCORK meeting reporten_US
dc.typeWorking Paperen_US
dc.identifier.doi10.1575/1912/7368


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