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US 9,309,751 B2Granted
Entry tube system
AssigneeWeatherford Technology Holdings, LLC
InventorChris Hall
Life of this patent
Estimating the term…
Abstract
An entry tube system allows fluid to enter a chamber and flow to one or more shunt tubes connected to a downhole end of the entry tube. The fluid can enter the chamber about all or substantially all of the circumference of an inner mandrel disposed within the entry tube, and flow through the chamber to be directed into the shunt tubes.
Claims32
A downhole tool, comprising:
- an entry tube;
- an inner mandrel, disposed within the entry tube, an outer surface of the inner mandrel forming a chamber between the inner mandrel and an inner surface of the entry tube about the entire circumference of the inner mandrel;
- and
- a shunt tube, extending longitudinally through a downhole end of the entry tube, in fluid communication with the chamber,
- wherein a single inlet into the chamber is formed between the inner mandrel and the entry tube, the single inlet allowing fluid entry into the chamber about substantially all of the circumference of the inner mandrel at an uphole end of the entry tube.
2 more elements
A method, comprising:
- forming a chamber in an entry tube, comprising:
- disposing an inner mandrel within the entry tube, an outer surface of the inner mandrel forming the chamber about the entire circumference of the inner mandrel between the outer surface of the inner mandrel and an inner surface of the entry tube;
- providing fluid communication into the chamber about substantially all of a circumference of the inner mandrel at an uphole end of the entry tube via a single inlet into the chamber formed between the inner mandrel and the entry tube;
- and
- forming an outlet from the chamber via a shunt tube extending longitudinally through a downhole end of the entry tube.
2 more elements
Dependencies are inferred from the claim text.