A study of intergranular and fissure permeability in Chalk and Permian aquifers, using double packer injection testing.

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Publication Date

January 1982

Publication Title

Journal of Hydrology

Volume Number

54

Issue Number

4

Abstract

Double-packer injection tests have been carried out in a borehole in the Chalk of Hampshire and a borehole in the Permian Penrith Sandstone of Cumbria, England. The tests have been supplemented by borehole logging and television inspections and by laboratory measurements on cores. A new mathematical treatment has enabled results to be calculated for injection test intervals containing fissures. In both formations, transmissivity immediately around the borehole is dominated by a few major fissures. In the Penrith Sandstone there is good agreement between intergranular hydraulic conductivity measurements and packer-test results in the portions of the borehole which do not contain major fissures. In the Chalk, the packer-test values are always higher than the intergranular measurements, suggesting that some degree of fissuring is present throughout.

Geographic Subject

England

Document Type

Article

Language

English

Notes

Journal of Hydrology, Vol. 54, no. 4 (1982-01).

Identifier

SFS0055791_00001

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