System and method for forming cavities in a well
AssigneeSchlumberger Technology Corporation
InventorsLawrence J. Leising, Robert Michael Ramsey, Howard L. McGill
Life of this patent
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Abstract
A technique is provided to form perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
Claims32
A system for making cavities in a wellbore, comprising:
- a perforating string sized for deployment in a wellbore, the perforating string comprising a perforating device;
- an anchoring mechanism to anchor the perforating device in the wellbore;
- and a multi-cycle incrementing tool to selectively move the perforating device over predetermined increments.
A method of making cavities in a wellbore, comprising:
- coupling a perforating device and a multi-cycle incrementing tool into a perforating string;
- moving the perforating device and the multi-cycle incrementing tool into a deviated wellbore;
- and
- controlling incremental movements of the perforating device with the multi-cycle incrementing tool.
A method, comprising:
- creating a perforation in a wellbore with a perforating device;
- incrementally moving the perforating device with an incrementing tool;
- and
- forming a subsequent perforation linked with the perforation.
A system for controlling a perforation operation in a wellbore, comprising:
- an apparatus to control the sequential formation of incrementally spaced cavities, the apparatus comprising a perforating mechanism and a continuous J-slot to control the incremental movement of the perforating mechanism.
A system for controlling a perforation operation in a wellbore, comprising:
- a perforating string having a perforating device and an elbow joint, the elbow joint selectively creating an angle in the perforating string to place the perforating device proximate a wellbore wall.
Dependencies are inferred from the claim text.