US 12,188,326 B2
Plug element facilitating well flowback
Sanjiv Kumar, Udhailiyah (SA); and Abdullah K. Alghannam, AlAhsa (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Apr. 24, 2023, as Appl. No. 18/305,921.
Prior Publication US 2024/0352823 A1, Oct. 24, 2024
Int. Cl. E21B 33/12 (2006.01); E21B 34/06 (2006.01)
CPC E21B 33/12 (2013.01) [E21B 34/06 (2013.01); E21B 2200/05 (2020.05)] 19 Claims
OG exemplary drawing
 
1. A plug for a well, comprising:
a cylindrical body;
a sealing ring mounted in the cylindrical body;
a flapper valve disposed against the sealing ring in the cylindrical body;
a torsion spring configured to open the flapper valve in a downhole direction against a fluid flow in an uphole direction, the torsion spring configured to open the flapper valve when a latch on the flapper valve is disengaged;
a receiver to receive control signals; and
an actuator controlled by the receiver to disengage the latch.