US 11,746,924 B2
Position sensor feedback for hydraulic pressure driven interval control valve movement
Ziquan Wang, Spring, TX (US); Michael John Christie, Aberdeen (GB); Robert Joseph Smith, Magnolia, TX (US); and Aswin Balasubramanian, The Woodlands, TX (US)
Assigned to HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Appl. No. 16/971,265
Filed by HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
PCT Filed Sep. 17, 2019, PCT No. PCT/US2019/051551
§ 371(c)(1), (2) Date Aug. 19, 2020,
PCT Pub. No. WO2021/054944, PCT Pub. Date Mar. 25, 2021.
Prior Publication US 2023/0094715 A1, Mar. 30, 2023
Int. Cl. F16K 7/00 (2006.01); G05D 7/06 (2006.01); E21B 34/10 (2006.01); F16K 37/00 (2006.01)
CPC F16K 37/0083 (2013.01) [G05D 7/0623 (2013.01); E21B 34/10 (2013.01); E21B 2200/20 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A valve positioning system comprising:
an interval control valve (ICV) coupled to at least one hydraulic-open line and at least one hydraulic-close line;
a position sensor coupled to the ICV, wherein the position sensor is configured to measure a position of the ICV; and
a surface controller coupled to the hydraulic-open line and the hydraulic-close line, and wherein the surface controller comprises one or more processors configured to perform operations for:
applying a first series of differential pressure values to the hydraulic-open line;
receiving a valve position for each of the first series of differential pressure values, from the position sensor; and
calculating one or more first valve parameters for each of the first series of differential pressure values.