US 12,460,506 B2
Valves for well systems and methods of operating same
Malcolm Perschke, Conroe, TX (US)
Assigned to TEXAS HIGHLAND HOLDINGS LLC, Conroe, TX (US)
Filed by Heshka Oil, Conroe, TX (US)
Filed on Aug. 28, 2023, as Appl. No. 18/457,226.
Prior Publication US 2025/0075590 A1, Mar. 6, 2025
Int. Cl. E21B 34/02 (2006.01)
CPC E21B 34/02 (2013.01) [E21B 2200/01 (2020.05)] 22 Claims
OG exemplary drawing
 
1. A valve configured for insertion in an axial direction into a hanger body of a well system, the valve comprising:
a valve body, the valve body comprising an exterior surface;
a first segment of the exterior surface being configured with a helical thread to engage a counter-threaded portion of the tubing hanger body;
a second segment of the exterior surface being configured as an essentially circumferential groove to accommodate an essentially toroidal sealing member, the groove comprising essentially right angle shoulders at both intersections of the groove with the exterior surface;
a third segment of the exterior surface configured to be a positive stop ring devoid of the helical thread, the third segment being intermediate the first segment and the second segment in the axial direction, the third segment also being contiguous with the first segment and the second segment in the axial direction, the third segment comprising a smooth circumferential surface which is parallel to the axial direction for the entire axial extent of the third segment.