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US 12,655,713 B2Granted
Dormant packer fracturing completion system
AssigneeSchlumberger Technology Corporation
InventorsBrandon Lee Schneider, Matthew McCarthy, Roman Vakulin
Life of this patent
Estimating the term…
Abstract
A system and method of utilizing degradable components on a coiled tubing fracturing system to place a packer in a dormant state. Degrading or dissolving the component remove to remove an obstruction in the actuation system. The removal of the obstruction causes a drag collet assembly of the dormant packer to be activated allowing the packer to actuate. The degradable components will dissolve or degrade when exposed to an acid or brine.
Claims10
A dormant packer assembly comprising:
- slips configured to engage an inner surface of a tubing;
- a sealing element configured to create a seal between the dormant packer assembly and the tubing;
- one or more dissolvable components configured to maintain the dormant packer assembly in a dormant state, wherein the one or more dissolvable components comprise a collet retainer and a demobilizing sleeve, wherein the collet retainer and the demobilizing sleeve are configured to dissolve when contacted by a fluid, and wherein the fluid is an acid or a brine;
- and
- a collet restrictor surrounding the collet retainer, wherein the collet restrictor has one or more openings for the fluid to interact with the collet retainer to cause the collet retainer to dissolve.
2 more elements
A fracture in place system comprising:
- a shifting tool configured for moving a sleeve;
- and
- a dormant packer assembly comprising:
- slips configured to engage an inner surface of a tubing;
- a sealing element configured to create a seal between the dormant packer assembly and the tubing;
- one or more dissolvable components configured to maintain the dormant packer assembly in a dormant state, wherein the one or more dissolvable components comprise a collet retainer and a demobilizing sleeve, wherein the collet retainer and the demobilizing sleeve are configured to dissolve when contacted by a fluid, and wherein the fluid is an acid or a brine;
- and
- a collet restrictor surrounding the collet retainer, wherein the collet restrictor has one or more openings for the fluid to interact with the collet retainer to cause the collet retainer to dissolve.
5 more elements
Dependencies are inferred from the claim text.