System and method for performing well treatments
AssigneeSchlumberger Technology Corporation
InventorsThibaut Guignard, John R. Whitsitt
Life of this patent
Estimating the term…
Abstract
A technique is provided for performing a well treatment operation. A completion assembly is constructed with a tubular member designed to maintain pressure integrity above a given well treatment zone. The completion assembly and a service tool can be moved downhole for well treatment operations in one or more well zones. A converter tool is utilized to selectively form openings through a wall of the tubular member to enable flow following completion of the well treatment in a lower zone.
Claims23
A method of performing a well servicing operation, comprising:
- preparing a completion assembly with a plurality of screen assemblies arranged to be positioned proximate a plurality of corresponding well zones;
- deploying the completion assembly and a service string downhole into a multi-zone wellbore;
- maintaining the pressure competence of screen assemblies uphole from a well zone during treatment of the well zone;
- moving the service string to a subsequent well zone;
- deforming an opening through a solid base pipe of a subsequent screen assembly positioned at the subsequent well zone by mechanically actuating a converter tool mounted on the service string through movement of the service string, thus selectively interrupting the pressure competence of the subsequent screen assembly;
- and
- using the service string to deliver a well service material to the subsequent well zone.
A method, comprising:
- moving a tubular member into a wellbore for a well service operation;
- maintaining pressure integrity of the tubular member during an initial well procedure;
- forming an opening through a solid wall of the tubular member while downhole without using an explosive charge, the opening being formed to break the pressure integrity and enable fluid flow through the opening;
- wherein moving comprises moving a completion assembly having a plurality of sand screen assemblies into the wellbore;
- and
- wherein forming comprises providing a service tool with a converter tool and moving the service tool through each of the plurality of sand screen assemblies to sequentially cut openings in a base pipe of each of sand screen assembly.
A system, comprising:
- a completion assembly positioned in a wellbore, the completion assembly having a tubular member;
- a service string having a service tool with a flow passage to direct fluid flow, the service tool being movable along an interior of the completion assembly;
- and
- a converter tool mounted on the service tool, the converter tool being selectively actuated to force an opening through a wall of the tubular member.
A system for servicing a well, comprising:
- a completion assembly having a plurality of sand screens, each sand screen having a solid base pipe to maintain pressure integrity;
- a service tool movable through the solid base pipes to enable treatment of a plurality of well zone;
- and
- a converter tool positioned for movement with the service tool to form openings through selected solid base pipes once pressure integrity is no longer required.
Dependencies are inferred from the claim text.