US 12,305,482 B2
Downhole shunt tube isolation valve system
Finn Gamble McCarthy, Carrollton, TX (US); Edmund Christopher Williamson, Carrollton, TX (US); Stephen Michael Greci, Carrollton, TX (US); and Ryan M. Novelen, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Oct. 31, 2023, as Appl. No. 18/499,022.
Prior Publication US 2025/0137352 A1, May 1, 2025
Int. Cl. E21B 34/14 (2006.01); E21B 43/04 (2006.01)
CPC E21B 34/14 (2013.01) [E21B 43/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A downhole shunt tube isolation system, comprising:
a first slurry tube segment;
a second slurry tube segment;
a valve housing connected to the first and second slurry tube segments, the valve housing including a ball valve and a valve linkage, the ball valve rotating between an open position and a closed position via the valve linkage, the valve having a slurry pathway extending through at least a portion of the valve housing, wherein the slurry pathway fluidically couples the first slurry tube segment to the second slurry tube segment with the valve in the open position and fluidically decouples the first slurry tube segment from the second slurry tube segment with the valve in the closed position; and
a valve actuation housing connected to the valve housing, the valve actuation housing including:
a valve actuator connected to the valve linkage;
a fluid channel connected to the valve actuator, the fluid channel initially closed to hydraulically lock the valve in the open position; and
an actuation mechanism connected to the fluid channel and the valve actuator, the actuation mechanism configured to open the fluid channel to hydraulically unlock the valve, wherein opening the fluid channel generates a pressure differential that causes the valve actuator to move the valve from an open to a closed position,
wherein the valve linkage converts linear motion by the valve actuator into rotational motion of the ball valve.