Device and Method for Perforation of a Downhole Formation
AssigneeqWave AS
InventorHans Petter Eng
Life of this patent
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Abstract
A device is for perforation of a downhole formation. The device has an electronically induced acoustic shock wave generator; and an acoustic shock wave focusing member. The device is adapted to focus generated acoustic shock waves onto an area of a borehole in order to disintegrate the downhole formation within said area. The device is adapted to generate a plurality of consecutive focused acoustic shock waves in order to gradually excavate a perforation tunnel, or to improve an already existing perforation tunnel, extending from said borehole and into said formation.
Claims15
A device for perforation of a downhole formation, the device comprising:
- an electronically induced acoustic shock wave generator;
- and
- an acoustic shock wave focusing member wherein
- the device is adapted to focus generated acoustic shock waves onto a focus area of a borehole in order to disintegrate the downhole formation within the area;
- and
- wherein the device is adapted to generate a series of focused acoustic shock waves in order to gradually excavate or improve a perforation tunnel extending from the borehole and into the formation.
A tool assembly for perforation of a downhole formation, the tool assembly comprising:
- a device having an electronically induced acoustic shock wave generator and an acoustic shock wave focusing member, wherein the device is adapted to focus generated acoustic shock waves onto a focus area of a borehole in order to disintegrate the downhole formation within the area, and wherein the device is adapted to generate a series of focused acoustic shock waves in order to gradually excavate or improve a perforation tunnel extending from the borehole and into the formation;
- wherein the tool assembly is connectable to a wellbore conveying means.
A method for operating a tool assembly for perforation of a downhole formation, the tool assembly comprising:
- a device having an electronically induced acoustic shock wave generator and an acoustic shock wave focusing member, wherein the device is adapted to focus generated acoustic shock waves onto a focus area of a borehole in order to disintegrate the downhole formation within the area, and wherein the device is adapted to generate a series of focused acoustic shock waves in order to gradually excavate or improve a perforation tunnel extending from the borehole and into the formation;
- wherein the tool assembly is connectable to a wellbore conveying means;
- the method comprising:
- (A) running the tool assembly into a well on a tool assembly conveying means and positioning the tool assembly adjacent a formation in the well;
- (B) activating the acoustic shock wave generator;
- (C) focusing a generated acoustic shock wave onto a focus area on a borehole in order to disintegrate the formation within the area;
- and
- (D) gradually excavating the perforation tunnel via a plurality of consecutive focused acoustic shock waves.
Dependencies are inferred from the claim text.