Remotely operated multi-zone packing system
AssigneeHalliburton Energy Services, Inc.
InventorsRalph Echols, Phillip Thomas, Travis Hailey
Life of this patent
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Abstract
A multi-zone packing system having unique features that allow for remote operation, thereby eliminating the need to raise and lower a work string and crossover tool to various zones of interest during a frac pack, gravel pack or related completion procedure. The squeeze pack system has a crossover tool or port collocated with each zone of interest and remotely operated closing devices to allow for the setting of each packer and the packing job to be performed with minimal or no movement of the work string.
Claims30
A method for well completion within a well that penetrates multiple zones of interest isolated by a plurality of packers, said method comprising the steps of:
- (a) setting the packers;
- (b) selecting a zone of interest by remote activation of a valve or closing sleeve;
- and
- (c) pumping proppant laden fluid into the zone of interest and/or into the annulus between the wellbore casing and the outer tubing.
A squeeze pack assembly having a plurality of valves and one or more packers for use in a wellbore, said assembly comprising:
- a means for remote activation of a first valve for the purpose of setting a packer;
- and,
- a means for remote activation of a second valve for the purpose of performing a gravel pack in the wellbore.
A method of well completion within a wellbore that penetrates multiple zones of interest using a squeeze pack assembly having a plurality of valve mechanisms and a plurality of packers, said method comprising the steps of:
- (a) isolating each of said zones of interest by setting at least one of said plurality of packers above and below each zone of interest;
- (b) selecting a first zone of interest by remote activation of a valve mechanism;
- and
- (c) directing proppant laden fluid into the first zone of interest via an annulus between the wellbore and the squeeze pack assembly, said annulus being generally adjacent to said first zone and bounded by at least one of said plurality of packers.
Dependencies are inferred from the claim text.