US 11,860,149 B2
Systems and methods for dynamic real-time water-cut monitoring
Ali M. Al Shahri, Doha (SA); Anas A. Al Shuaibi, Dammam (SA); Mohammed S. Kanfar, Dammam (SA); Kalid Saad Dosary, Al-Khobar (SA); and Abdulaziz A. Alsaleh, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Mar. 8, 2021, as Appl. No. 17/194,958.
Claims priority of provisional application 63/022,849, filed on May 11, 2020.
Prior Publication US 2021/0349071 A1, Nov. 11, 2021
Int. Cl. G01N 33/28 (2006.01); G06N 3/08 (2023.01); E21B 49/08 (2006.01)
CPC G01N 33/2847 (2013.01) [E21B 49/0875 (2020.05); G06N 3/08 (2013.01); E21B 2200/20 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A system for dynamic real-time water-cut monitoring comprising:
a plurality of sensors for sensing pressure across a pipe, wherein each of the plurality of sensors is separated by a common distance from a next sensor of the plurality of sensors along the pipe, wherein the pipe facilitates the transfer of fluid, wherein the fluid includes water; and
a computing device that includes a memory component that stores logic that, when executed by the computing device, causes the system to perform at least the following:
determine whether to use a direct approach for determining water-cut; and
in response to determining not to use the direct approach:
determine an initial guess for water-cut;
estimate, from an output of two sensors of the plurality of sensors, at least one dynamic pressure loss between the two sensors;
estimate, from the output of the two sensors, at least one potential energy pressure loss between the two sensors;
estimate a value for water-cut from the at least one dynamic pressure loss and the at least one potential energy pressure loss;
determine whether the initial guess is within a predetermined threshold of the value for water-cut; and
in response to determining that the initial guess is within the predetermined threshold of the value for water-cut, output the value for water-cut.