Published February 2009 | Version v1
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Mise-a-la-masse measurements in drillholes OL-KR4, OL-KR30 and OL-KR14 - OL-KR18 in Olkiluoto

  • 1. PRG-Tec Oy, Espoo (Finland)

Description

Mise-a-la-masse measurements were conducted in the Olkiluoto investigation site in the time period from May to November 2007. Measurements were carried out in drillholes OL-KR4, OL-KR30 and OL-KR14 - OL-KR18. The purpose of the study was to collect data for geological modelling. The aim is to evaluate the continuity of fractures and other geological structures from a drillhole to another drillhole and from a drillhole to the ground surface. Posiva has developed electrodes for mise-a-la-masse method measurements, where the location of the electrode is between rubber disks similar to the flow guide. Rubber disks prevent leakage of current along the drillhole and focus current directly to a specific fracture. (orig.)

Availability note (English)

Also available in fulltext at http://www.posiva.fi/files/939/WR_2009-10web.pdf or

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Additional details

Publishing Information

Imprint Pagination
244 p.
Report number
POSIVA-WR--09-10

Optional Information

Notes
5 refs.; This record replaces 40104494