System for Completing Multiple Well Intervals
AssigneeSchlumberger Technology Corporation
InventorsJorge Lopez de Cardenas, Gary Rytlewski, Matthew Hackworth
Life of this patent
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Abstract
A system and method for completing a well with multiple zones of production is provided, including a casing having a plurality of valves integrated therein for isolating each well zone, establishing communication between each underlying formation and the interior of the casing, and delivering a treatment fluid to each of the multiple well zones. Furthermore, the present invention further discloses mechanisms for actuating one or more of the valves including, but not limited to, a dart, a drop ball, a running tool, and control line actuating system.
Claims34
A system for use in a wellbore having a plurality of well zones, comprising:
- a casing deployed in the wellbore;
- and
- a plurality of valves connected to the casing, each valve for establishing communication between the casing and a well zone;
- wherein the casing is fixed to the wellbore by cement.
A method for use in a wellbore having a plurality of well zones, comprising:
- running a casing having a plurality of valves formed therein from a surface down into the wellbore such that each valve is proximate a well zone;
- cementing the casing to the wellbore;
- and
- opening a valve to establish communication between the surface and the wellbore.
A system for use in a wellbore having a plurality of well zones, comprising:
- a casing fixed to the wellbore by cement;
- a plurality of valves connected to the casings, each valve comprising:
- (i) a flow port for establishing communication between the casing and one of the well zones, and (ii) a sliding sleeve disposed therein for regulating communication via the flow port, the sliding sleeve having an axial bore therein with a mating profile;
- an actuating tool comprising a collet adapted to selectively engage with the mating profile of the sliding sleeve of each of the plurality of valves;
- and
- a work string connected to the actuating tool, the work string adapted to axially move the actuating tool in the wellbore.
A system for use in a wellbore having a well zone, comprising:
- a casing deployed in the wellbore, the casing having an axial bore therein;
- and
- a valve connected to the casing for establishing communication between the casing and the well zone, the valve moveable between an open position wherein a flowpath exists between the axial bore of the casing and the well zone and a closed port position wherein the flowpath is interrupted, wherein the casing is fixed to the wellbore by cement.
Dependencies are inferred from the claim text.