System and method for centralizing a tool in a wellbore
AssigneeHalliburton Energy Services, Inc.
InventorsEdward Harrigan, Adan Hernandez Herrera, Wesley N. Ludwig
Life of this patent
Estimating the term…
Abstract
A centralizing perforating gun for perforating a tubular in a wellbore include a gun housing, perforating charges positioned within the gun housing and detonatable to perforate the tubular, and a centralizing system. The centralizing system includes an extendable member configured to move between a retracted position and an extended position. The extendable member is configured to engage a surface of the tubular in the extended position, thereby biasing the centralizing perforating gun away from the surface of the tubular.
Claims20
A centralizing perforating gun for perforating a tubular in a wellbore, the gun comprising:
- a gun housing;
- perforating charges within the gun housing and detonatable to perforate the tubular;
- and
- a centralizing system comprising an extendable member extendable between a retracted position and an extended position, wherein the extendable member is configured to engage a surface of the tubular when extended, thereby biasing the centralizing perforating gun away from the surface of and centralized within the tubular.
The system of claim 13, further comprising a piston coupled to a portion of the arm such that axial motion of the piston causes rotation of the arm.
A method for centralizing a perforating gun comprising:
- conveying the perforating gun comprising a gun housing downhole into a wellbore;
- igniting a power charge to extend an extendable member from a retracted position to engage a surface of a tubular within a wellbore in an extended position, thereby biasing the perforating gun away from the surface of the tubular;
- and
- detonating perforating charges positioned within the gun housing to perforate the tubular.
A system for perforating a wellbore, the system comprising:
- a wireline;
- and
- perforating guns positioned along the wireline, each perforating gun comprising:
- a gun housing;
- perforating charges within the gun housing and detonatable to perforate the tubular;
- and
- a centralizing system comprising an extendable member configured to move between a retracted position and an extended position, wherein the extendable member is configured to engage a surface of the tubular in the extended position, thereby biasing the respective perforating gun away from the surface of and centralized within the tubular.
Dependencies are inferred from the claim text.