Report on Task 7.9 Well integrity measurement at St.Gallen field site by temperature profiling within cased well bore sections

Uhlig, Stephan and Meier, Tobias and Bloch, Thomas (2020) Report on Task 7.9 Well integrity measurement at St.Gallen field site by temperature profiling within cased well bore sections. Project Report. St.Gallen, Switzerland.

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Abstract

After shutting-in the well in 2013 it was planned to carry out an indirect well integrity check on the accessible cased hole section “St.Gallen GT-1” well by simple means and a relatively low budget through temperature profiling of the well within the easy accessible cased well sections. As a secondary goal, it was also aimed for determining – as a first ever indication throughout the deeper subsurface of Northeastern Switzerland – the geothermal gradient for the evaluated part of the well from the resulting data. It was also an objective of these measures to provide a template for the plausibility check of other well integrity tests with a pragmatic approach of a low-budget solution.

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Item Type: Reports (Project Report)
Uncontrolled Keywords: Well integrity, temperature profiling, wireline measurement, St.Gallen, geothermal energy
Subjects: Methodology > Other-additional study
Region > Switzerland
Region > Switzerland > St. Gallen
Inducing technology > Geothermal energy production
Project: S4CE > ST GALLEN: geothermal project