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Hydraulic fracturing stress measurements at Forsmark and Stidsvig, Sweden
Luleå tekniska universitet.
Luleå tekniska universitet.
1986 (English)In: Bulletin of the Geological Society of Finland, ISSN 0367-5211, no 58, part 1, p. 307-333Article in journal (Refereed) Published
Abstract [en]

This paper presents a new development in the use of a multi-hose for hydraulic fracturing, for estimation of in-situ stresses in the Earth's crust. The test procedure and evaluation on hydraulic fracturing in the first and second breakdown method is described. Hydraulic fracturing was performed in Precambrian gneissic rocks at depths down to 500 m in one borhole at Forsmark, Centra Sweden, and down to 150 m in three boreholes at Stidsvig, Southern Sweden. Tests were conducted in both 76 and 56 mm boreholes. The hydraulic fracturing tests at Forsmark follow a stress pattern calculated from the second breakdown method, and excluding the influence of pore pressure.

Place, publisher, year, edition, pages
1986. no 58, part 1, p. 307-333
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-8181Local ID: 6a644550-e6a9-11dc-bcb4-000ea68e967bOAI: oai:DiVA.org:ltu-8181DiVA, id: diva2:981072
Note
Godkänd; 1986; Bibliografisk uppgift: Även utgiven som Research report / Luleå University of Technology , 1984:30; 20080229 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-21Bibliographically approved

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