Downhole tool and method for fracturing a subterranean well...

Details Downhole tool and method for fracturing a subterranean well... Downhole tool and method for fracturing a subterranean well...

E - Fixed Constructions

21

B

E21B 43/27 (2006.01) E21B 17/02 (2006.01) E21B 41/00 (2006.01) E21B 43/114 (2006.01) E21B 43/25 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2466139

A downhole tool for fracturing a subterranean formation according to which a tool having a plurality of discharge jets or nozzles is located in a spaced relation to a wall of the formation to form an annulus between the nozzles and the formation. An acid-containing, stimulation fluid is pumped at a predetermined pressure through the nozzles, into the annulus and against the wall of the formation. A gas is pumped into the annulus so that the stimulation fluid mixes with the gas to generate foam before the mixture is jetted towards the formation to impact the wall of the formation. The tool is adapted to bend, or tilt, so that the discharge jets can come in to proximity to the formation being fractured.

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