US 11,814,913 B2
System and method for use of a self-automated adjusted choke valve
Ahmed A. Ghanmi, Hofuf (SA); and Fahmi Aulia, Udhailiyah (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Oct. 21, 2021, as Appl. No. 17/451,757.
Prior Publication US 2023/0126989 A1, Apr. 27, 2023
Int. Cl. E21B 47/06 (2012.01); E21B 34/08 (2006.01); E21B 34/16 (2006.01); E21B 21/08 (2006.01); E21B 34/02 (2006.01)
CPC E21B 21/08 (2013.01) [E21B 34/025 (2020.05); E21B 34/08 (2013.01); E21B 34/16 (2013.01); E21B 47/06 (2013.01); E21B 2200/20 (2020.05)] 19 Claims
OG exemplary drawing
 
1. A system, comprising:
a choke valve coupled to a Christmas tree on a wellhead;
a smart module coupled to the choke valve;
a hydraulic control unit coupled to the smart module and the choke valve, wherein the hydraulic control unit hydraulically actuates the choke valve;
a first sensor attached upstream of the choke valve and a second sensor attached downstream of the choke valve, wherein the first sensor measures an upstream pressure and the second sensor measures a downstream pressure; and
a controller coupled to the smart module and the hydraulic control unit,
wherein the smart module receives the upstream pressure, the downstream pressure, and well data to generate commands to adjust a choke size of the choke valve corresponding with a required production rate of a well, wherein the well data is a historical production performance data on the well to create Inflow Performance Relationship and Vertical Lift Performance Relationship curves; and
wherein the controller manages a transmission of hydraulic pressure from the hydraulic control unit to actuate the choke valve based on the generated commands.