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![Destructives techniques Destructives techniques](/images/visuels/public/2_how/3_operation/2_auscultation/3_destructives_1.jpg)
Destructive investigations consist in drilling the lining.
They are essential in any case to calibrate non destructive investigations.
- Windows
- Core boring
- Destructive exploratory boring using an endoscope
- Digital data looging devices for borehole parameters
- Permeability tests
- In situ mechanical test
- in situ stress measurements
- Lab tests