Systems and methods for completing a multiple zone well

Details Systems and methods for completing a multiple zone well Systems and methods for completing a multiple zone well

2011-01-11

2011-01-11

Neuder, William P (Department: 3672)

Wells

Processes

Parallel string or multiple completion well

C166S373000, C166S332400

Reexamination Certificate

active

07866396

ABSTRACT:
A system for use in a wellbore having a plurality of well zones includes a tubing disposed in the wellbore; and a plurality of valves connected to the tubing, wherein each of the plurality of valves comprises at least one port for communication between the tubing and one of the plurality of well zones, wherein each of the plurality of valves further comprises a sleeve moveable by an actuating device between an open position, wherein the at least one port is open, and a closed position, wherein the at least one port is closed, wherein the actuating device comprises a head part and a tail part, the head part having a disk-like or partial spherical structure having a diameter slightly smaller than an internal diameter of the tubing and the tail part having at least one fin arranged substantially perpendicular to the disk-like or partial spherical structure.

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Thomson, D.W. and Nazroo, M.F.: “Design and Installation of a Cost-Effective Completion System for Horizontal Chalk Wells Where Multiple Zones Require Acid Stimulation,” SPE 51177 Drilling & Completion, Offshore Technology Conference, Sep. 1998, pp. 151-156.

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