US 12,410,682 B2
Safety valve, method, and system
Grant Thompson, Tulsa, OK (US); and Wade Miller, Broken Arrow, OK (US)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on May 3, 2024, as Appl. No. 18/654,734.
Application 18/654,734 is a continuation in part of application No. 18/508,802, filed on Nov. 14, 2023.
Prior Publication US 2025/0154852 A1, May 15, 2025
Int. Cl. E21B 34/10 (2006.01); E21B 34/06 (2006.01); F16K 17/16 (2006.01)
CPC E21B 34/106 (2013.01) [E21B 34/063 (2013.01); F16K 17/16 (2013.01); E21B 2200/05 (2020.05)] 20 Claims
OG exemplary drawing
 
1. An insert safety valve, comprising:
a housing;
a seal element disposed upon the housing;
a flow tube movably disposed within the housing;
a flapper articulated to the housing and responsive to positions of the flow tube relative to the housing;
an atmospheric chamber disposed within the housing;
a selectively openable boundary;
an opener disposed to selectively open the selectively openable boundary to allow pressure communication between the atmospheric chamber and an environment outside of the housing, the opener being responsive to movement of the seal element on the housing.