US 12,270,277 B2
Methodology and system for electronic control and acquisition of downhole valve
Carlos Urdaneta, Houston, TX (US); Mark Hofacker, Sugar Land, TX (US); and Jordi Juan Segura Dominguez, Tananger (NO)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Mar. 31, 2022, as Appl. No. 17/657,499.
Prior Publication US 2023/0313639 A1, Oct. 5, 2023
Int. Cl. E21B 34/06 (2006.01); E21B 23/04 (2006.01); E21B 47/06 (2012.01); F16K 37/00 (2006.01)
CPC E21B 34/066 (2013.01) [E21B 23/0413 (2020.05); E21B 47/06 (2013.01); F16K 37/0041 (2013.01); F16K 37/0066 (2013.01)] 7 Claims
OG exemplary drawing
 
4. A system, comprising:
a valve positioned along a well string, the valve being configured to control flow of fluid to a well tool;
an actuator module having a motor, a pump connected to the motor, and a motor controller, the actuator module being coupled into the well string such that the pump is able to supply actuating fluid to the valve so as to provide controlled shifting of the valve between operational positions according to electronic control signals received by the motor controller; and
a sensor system having one or more sensors located to provide feedback to the motor controller regarding the operational position of the valve, wherein the one or more sensors comprise a current sensor configured to measure a current associated with the motor, and wherein the motor controller is configured to determine the operational position of the valve based on the current associated with the motor;
wherein the motor controller is configured to determine the operational position of the valve by estimating hydraulic fluid pressure as a function of the current.