公开(公告)号：US20250109652A1

公开(公告)日：2025-04-03

申请号：US18854964

申请日：2022-05-02

Applicant: Chevron U.S.A. Inc.

Inventor： Hailing An ,  James Nileshwar

IPC: E21B34/02 ,  E21B47/06

Abstract: A method for evaluating performance of a choke valve includes collecting baseline performance data for the choke valve during a first time period; establishing a relationship between a flow area and positions of the choke valve for the first time period; collecting measurements of parameters associated with the choke valve during a second time period; generating a predicted flow area of the choke valve during a second time period;, generating an estimated flow area through the choke valve during the second time period using the relationship established during the first time period; comparing the estimated flow area with the predicted flow area for the second time period; and determining that the performance of the choke valve is no longer within the range of acceptable performance values when a difference between the estimated and predicted flow areas for the second time period falls outside a range of threshold values.