Device and method for reducing detonation gas pressure
AssigneeSchlumberger Technology Corporation
InventorsLawrence A. Behrmann, Brenden M. Grove
Life of this patent
Estimating the term…
Abstract
A perforating gun, having a gun carrier extending in a longitudinal direction; a loading tube located within the gun carrier, the loading tube extending in the longitudinal direction; a shape charge being supported by the loading tube, the shape charge having a casing, an explosive, and a liner, the casing opening in a first direction and having a centerline extending in the first direction, the first direction being essentially perpendicular to the longitudinal direction; and a liquid implant, the liquid implant being located adjacent to the shape charge in the first direction and intersecting the centerline.
Claims25
A perforating gun, comprising:
- A gun carrier extending in a longitudinal direction;
- a loading tube located within the gun carrier, the loading tube extending in the longitudinal direction;
- a shape charge being supported by the loading tube, the shape charge having a cup-shaped casing having a rim that defines an opening to an interior volume of the casing, a liner located inside the casing, and an explosive between the casing and the liner, the shape charge aiming in a first direction and having a centerline extending along the first direction, the first direction being essentially perpendicular to the longitudinal direction;
- and
- a liquid implant, the liquid implant being located outside of the interior volume of the cup-shaped casing and adjacent to the shape charge in the first direction and intersecting the centerline.
A method of perforating, comprising:
- placing a perforating gun downhole, the perforating gun comprising:
- a gun carrier extending in a longitudinal direction;
- a loading tube located within the gun carrier, the loading tube extending in the longitudinal direction;
- a shape charge being supported by the loading tube, the shape charge having a cup-shaped casing having a rim that defines an opening to an interior volume of the casing, a liner within the casing and an explosive between the casing and the liner, the shape charge aiming in a first direction, the first direction being essentially perpendicular to the longitudinal direction;
- and
- a liquid implant, the liquid implant being located outside of the interior volume of the cup-shaped casing and adjacent to the shape charge in the first direction;
- the method comprising, detonating the shape charge thereby forming the liner into a jet, the jet being propelled in the first direction thereby contacting and rupturing the liquid implant and releasing liquid in the liquid implant, thereby contacting the liquid with gas produced from the detonation of the shape charge.
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(canceled)
A perforating gun, comprising:
- A gun carrier extending in a longitudinal direction;
- a loading tube located within the gun carrier, the loading tube extending in the longitudinal direction;
- a shape charge being supported by the loading tube, the shape charge having a cup-shaped casing having a rim that defines an opening to an interior volume of the cup-shaped casing, a liner inside the casing, and an explosive located between the casing and the liner, the shape charge aiming in a first direction, the first direction being essentially perpendicular to the longitudinal direction;
- and
- a liquid implant, the liquid implant being located outside of the interior volume of the cup-shaped casing and adjacent to the shape charge in the first direction and intersecting the centerline and poisoned so that upon detonation of the shape charge the liner becomes a jet, the jet being projected into contact with the liquid implant.
Dependencies are inferred from the claim text.