公开(公告)号：US20240426395A1

公开(公告)日：2024-12-26

申请号：US18339163

申请日：2023-06-21

Applicant: Chevron U.S.A. Inc. ,  Chevron Australia Pty Ltd

Inventor： Hailing An ,  Scott Eric Weatherwax ,  Miao Miao ,  Minh Duc Vo

IPC: F16K37/00

Abstract: A method for remotely evaluating a hydraulic valve may include obtaining multiple values associated with measurements of a parameter, where the measurements are measured by multiple sensor devices, where the sensor devices are configured to measure the parameter at multiple locations along a network of hydraulic lines that circulates a hydraulic fluid with respect to an actuator of the hydraulic valve, and where the parameter is associated with an actuator of the hydraulic valve during a subterranean field operation; executing an algorithm using the measurements to generate a result; comparing the result of the algorithm with a range of acceptable values, where the range of acceptable values is established using prior results of the algorithm; and determining that the hydraulic valve has a potential failure when the result falls outside the range of acceptable values.

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.

公开(公告)号：US11566511B2

公开(公告)日：2023-01-31

申请号：US17089539

申请日：2020-11-04

Applicant: CHEVRON U.S.A. INC. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert Kwan Meng Seah ,  Hailing An ,  Thomas E. O'Donnell ,  Darmindra Arumugam

IPC: G01V3/38 ,  G01V3/18 ,  G01R33/38 ,  E21B47/002

Abstract: A magneto-quasistatic field may be used to align hydrogen of materials within a structure and/or to disrupt the alignment of hydrogen of materials within the structure. Realignment of the hydrogen after the disruption may cause emission of energy from the hydrogen. The characteristic(s) of the energy may be detected and used to generate image(s) of interior portion(s) of the structure.

公开(公告)号：US11621789B2

公开(公告)日：2023-04-04

申请号：US17089517

申请日：2020-11-04

Applicant: CHEVRON U.S.A. INC. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert Kwan Meng Seah ,  Hailing An ,  Baha Tulu Tanju ,  Darmindra Arumugam

IPC: H04B13/02 ,  H01P3/16

Abstract: Magneto-quasistatic signals may be used to enable under-liquid communication between devices. A magneto-quasistatic signal transmitter of an under-liquid device may transmit a magneto-quasistatic signal conveying communication data through liquid. A magneto-quasistatic signal receiver of another under-liquid device may receive the magneto-quasistatic signal and extract the communication data from the magneto-quasistatic signal. The under-liquid device that received the magneto-quasistatic signal may use the communication data, store the communicate data, and/or relay the communication data (e.g., to another under-liquid device, to an above-liquid device) using another magneto-quasistatic signal.

公开(公告)号：US11614331B2

公开(公告)日：2023-03-28

申请号：US17089496

申请日：2020-11-04

Applicant: CHEVRON U.S.A. INC. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert Kwan Meng Seah ,  Hailing An ,  Darmindra Arumugam

IPC: G01C21/20 ,  G01C21/16 ,  H04W4/029

Abstract: Magneto-electric quasistatic (MEQS) field may be used to track positions of persons and/or objects inside metallic environments. A magneto-electric quasistatic field generator may generate a magneto-electric quasistatic field inside a metallic environment. A magneto-electric quasistatic field detector inside the metallic environment may detect the magneto-electric quasistatic field and generate output signals conveying characteristics of the magneto-electric quasistatic field. The relative position of the magneto-electric quasistatic field detector with respect to the magneto-electric quasistatic field generator may be determined based on the output signals. The position of the magneto-electric quasistatic field detector/generator and/or the position of a person/object carrying the magneto-electric quasistatic field detector/generator may be tracked using the relative position of the magneto-electric quasistatic field detector with respect to the magneto-electric quasistatic field generator.