Inhibiting effects of sloughing in wellbores

Details Inhibiting effects of sloughing in wellbores Inhibiting effects of sloughing in wellbores

E - Fixed Constructions

21

B

E21B 43/24 (2006.01)

Patent

CA 2563525

The invention provides a method for treating a subsurface formation. The method includes providing one or more explosives into portions of one or more wellbores selected for the explosion in the formation. The wellbores formed are in one or more zones in the formation. The method also includes controllably exploding the explosives in one or more of the wellbores such that at least some of the formation surrounding the selected wellbores has an increased permeability. The method also includes providing one or more heaters in the one or more wellbores.

L'invention concerne un procédé permettant de traiter une formation souterraine, qui consiste notamment à placer un ou plusieurs explosifs dans des parties d'un ou de plusieurs puits de forage choisis aux fins de l'explosion dans cette formation. Les puits de forage formés se trouvent dans une ou plusieurs zones de la formation. Ledit procédé consiste également à faire exploser de manière contrôlée des explosifs dans un ou plusieurs de ces puits de forage, de sorte qu'au moins une partie de la formation entourant les puits de forage choisis présente une perméabilité accrue. Le procédé consiste enfin à placer un ou plusieurs réchauffeurs dans lesdits puits de forage.

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