US 11,441,372 B2Granted

Inward biased tubing hanger

AssigneePatriot Research Center, LLC

InventorsCraig Cotton, Brandon Cain

Life of this patent

Estimating the term…

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Abstract

An inwardly biased tubing hanger is provided that allows for continued turns in the same direction to both lock the tubing hanger in place within the well as well as release the running tool from the tubing hanger. An energizing sleeve and running tool each having left hand threads is provided where a torque ring between the energizing sleeve and running tool allows the running tool to be turn in the right hand direction until sufficient torque is provided to the torque sleeve to release the running tool from the energizing sleeve. With the running tool attached to the energizing sleeve the energizing sleeve provides sufficient force, provided the torque limit of the torque sleeve is not been reached, to drive the inwardly biased torque ring radially outward.

Claims3

Dependent claims

An inwardly biased tubing hanger and running tool comprising:

a mandrel having a first radially outward surface and a shoulder,
wherein the mandrel has a first thread on the first radially outward surface,
a torque ring,
wherein, the torque ring is on a radially outward surface of the energizing sleeve and retained by an upward shoulder on the energizing sleeve,
wherein, the mandrel engages the torque ring,
an energizing sleeve having a first radially inward surface and a second radially outward surface,
wherein the first radially inward surface has a second thread that cooperates with the first thread on the first radially outward surface,
and further wherein the second radially outward surface has a third thread,
an inwardly biased lock ring,
a running tool having a second radially inward surface,
wherein the second radially inward surface has a fourth thread that cooperates with the third thread on the energizing sleeve's second radially outward surface.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/995,303Filed 17 Aug 2020
Published: US 2022/0049562 A117 Feb 2022
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

E21B 23/02
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells: for locking the tools or the…
E21B 33/04
Well heads; Setting-up thereof: casing heads; Suspending casings or tubings in well heads
E21B 43/10
Subsoil filtering: setting of casings, screens, liners or the like in wells
E21B
Earth or rock drilling

Family

US 2022/0049562 A1Pre-grant publication · published 17 Feb 2022
US 11,441,372 B2This patent

From the US filing history. Foreign family members aren’t listed.

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