US 12,392,221 B2
Controlling fluid flows in a multi-wellbore well system with a surface controlled formation isolation valve
Abdulrahman Mamdouh Anzi, Al Khafji (SA); and Mohammed Hadi Alqahtani, Al Khafji (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 31, 2023, as Appl. No. 18/103,797.
Prior Publication US 2024/0254862 A1, Aug. 1, 2024
Int. Cl. E21B 34/16 (2006.01); E21B 47/12 (2012.01)
CPC E21B 34/16 (2013.01) [E21B 47/12 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method, in a well system requiring an intervention job, the method comprising:
transmitting, from a single well control panel on a surface of the Earth, the single well control panel operatively coupled to the well system, a close control signal to a motherbore inflow control valve positioned in the well system at a downhole location in a motherbore, the motherbore inflow control valve configured to control fluid flow from the motherbore into a production tubing extending to the surface;
receiving, at the motherbore inflow control valve, the close control signal;
responsive to receiving the close control signal at the motherbore inflow control valve, closing the motherbore inflow control valve;
transmitting, from the single well control panel, a close control signal to a lateral inflow control valve positioned in the production tubing in the motherbore at a downhole location uphole from the motherbore inflow control valve, the lateral inflow control valve configured to control fluid received in motherbore from a lateral wellbore fluidly coupled to the motherbore in the production tubing;
receiving, at the lateral inflow control valve, the close control signal;
responsive to receiving the close control signal at the lateral inflow control valve, closing the lateral inflow control valve;
transmitting, from the single well control panel on the surface of the Earth, an open control signal to a surface controlled formation isolation valve positioned in the well system at a downhole location from the motherbore inflow control valve and the lateral inflow control valve and configured to control a fluid flow from the motherbore into the production tubing;
receiving, at the surface controlled formation isolation valve, the open control signal;
after receiving the open control signal at the surface controlled formation isolation valve, opening the surface controlled formation isolation valve hydraulically; and
after opening the surface controlled formation isolation valve, facilitating completion of the intervention job through the surface controlled formation isolation valve into the well system.