Method and apparatus for plugging perforations

Details Method and apparatus for plugging perforations Method and apparatus for plugging perforations

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) E21B 33/134 (2006.01)

Patent

CA 2592556

Apparatus and method for plugging perforations in an oil or gas well. A bridge plug is formed in the casing below the perforations. A heating tool and a fusible alloy adjacent the heating tool is lowered into the well to a position above the bridge plug and adjacent the perforations. Heat is applied to melt the fusible alloy and pressure is applied to the molten material to force it through the perforations. The heating operation is terminated to allow the molten material to solidify and plug the perforations.

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