Earth tide effects on flows in horizontal permeable elastic layers connected to wells

Morland, L. W. (1977) Earth tide effects on flows in horizontal permeable elastic layers connected to wells. Geophysical Journal International, 51 (2). pp. 371-385. ISSN 0956-540X

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Abstract

The flux between a well and a water-saturated permeable elastic layer caused by an oscillating rigid impermeable overburden is examined for plane and axi-symmetric flows. It is assumed that the overburden height is much greater than the layer thickness. Estimates of the amplitude of the water-level fluctuation in the well are made when the oscillation is caused by a small periodic gravity perturbation describing an Earth tide. It is shown that the maximum possible amplitude is inversely proportional to the layer porosity, and is attained only when the length (radius) of layer influencing the well exceeds a critical length. This critical length is much smaller for axi-symmetric flow than for plane flow. The maximum amplitude can be of order 1 cm or greater for low-porosity layers under an overburden of large depth.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Mathematics (former - to 2024)
Depositing User:	Pure Connector
Date Deposited:	27 Mar 2015 13:08
Last Modified:	25 Sep 2024 11:49
URI:	https://ueaeprints.uea.ac.uk/id/eprint/52901
DOI:	10.1111/j.1365-246X.1977.tb06924.x

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