US 12,385,355 B1
Deep set wireline retrievable safety valve
Merced Gonzalez, Singapore (SG)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Mar. 20, 2024, as Appl. No. 18/610,964.
Int. Cl. E21B 34/10 (2006.01)
CPC E21B 34/106 (2013.01) [E21B 34/101 (2013.01); E21B 2200/05 (2020.05)] 23 Claims
OG exemplary drawing
 
1. A wireline retrievable safety valve for use in a tubing retrievable safety valve (TRSV) disposed downhole in a wellbore, comprising:
a body having a bore therethrough, a control port, and a balance port;
an operating piston;
a balance piston having a head and a rod; and
a valve having an open position and a closed position;
wherein:
the control port is in fluid communication with a first side of the operating piston;
the balance port is in fluid communication with a first side of the balance piston head;
a second side of the operating piston and a second side of the balance piston head are configured to be in fluid communication with the wellbore through one or more wellbore pressure ports;
the balance piston rod extends outward from the first side of the balance piston head;
the balance piston rod is configured to be in fluid communication with the wellbore;
the operating piston and the balance piston are linked to move together; and
the valve is configured so that sufficient pressure applied to the operating piston through the control port opens the valve.