Control system and a method for monitoring a filter in an underwater hydrocarbon well
First Claim
1. A control system for monitoring a filter in a subsea control module of an underwater hydrocarbon well, wherein an input of the filter is connected to a hydraulic fluid source to receive a hydraulic fluid, and wherein the filter is configured to filter the hydraulic fluid, the control system comprising:
- an upstream pressure transducer disposed upstream of the filter and configured to sense an upstream pressure of the hydraulic fluid;
a downstream pressure transducer disposed downstream of the filter and configured to sense a downstream pressure of the hydraulic fluid;
a subsea electronics module coupled to the upstream pressure transducer and the downstream pressure transducer, and wherein the subsea electronics module is configured to determine average pressure differential values at different instances based on the upstream pressure and the downstream pressure; and
a master control station coupled to the subsea electronics module and configured to;
receive the average pressure differential values from the subsea electronics module;
determine a rate of change of the average pressure differential based on the average pressure differential values;
extrapolate the rate of change of the average pressure differential to obtain an extrapolated average pressure differential;
predict a filter maintenance due time based on the extrapolated average pressure differential, the rate of change of the average pressure differential, and a target maintenance pressure differential; and
generate an indication of the predicted filter maintenance due time for an operator of the underwater hydrocarbon well.
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Accused Products
Abstract
A control system for monitoring a filter in a subsea control module (SCM) of an underwater hydrocarbon well is presented. The control system includes an upstream pressure transducer disposed upstream of a filter of the SCM and configured to sense an upstream pressure. The control system further includes a downstream pressure transducer disposed downstream of the filter and configured to sense a downstream pressure. Furthermore, the control system includes a subsea electronics module (SEM) coupled to the upstream pressure transducer and the downstream pressure transducer. The SEM is configured to determine average pressure differential values at different instances based on the upstream pressure and the downstream pressure. Moreover, the control system also includes a master control station (MCS) coupled to the SEM and configured to predict a filter maintenance generate an indication of the predicted filter maintenance due time for an operator of the underwater hydrocarbon well.
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Citations
20 Claims
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1. A control system for monitoring a filter in a subsea control module of an underwater hydrocarbon well, wherein an input of the filter is connected to a hydraulic fluid source to receive a hydraulic fluid, and wherein the filter is configured to filter the hydraulic fluid, the control system comprising:
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an upstream pressure transducer disposed upstream of the filter and configured to sense an upstream pressure of the hydraulic fluid; a downstream pressure transducer disposed downstream of the filter and configured to sense a downstream pressure of the hydraulic fluid; a subsea electronics module coupled to the upstream pressure transducer and the downstream pressure transducer, and wherein the subsea electronics module is configured to determine average pressure differential values at different instances based on the upstream pressure and the downstream pressure; and a master control station coupled to the subsea electronics module and configured to; receive the average pressure differential values from the subsea electronics module; determine a rate of change of the average pressure differential based on the average pressure differential values; extrapolate the rate of change of the average pressure differential to obtain an extrapolated average pressure differential; predict a filter maintenance due time based on the extrapolated average pressure differential, the rate of change of the average pressure differential, and a target maintenance pressure differential; and generate an indication of the predicted filter maintenance due time for an operator of the underwater hydrocarbon well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control system for monitoring a first filter and a second filter in a subsea control module of an underwater hydrocarbon well, wherein an input of the first filter is connected to a first hydraulic fluid source to receive a first hydraulic fluid and an input of the second filter is connected to a second hydraulic fluid source to receive a second hydraulic fluid, the control system comprising:
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a first upstream pressure transducer disposed upstream of the first filter and configured to sense a first upstream pressure of the first hydraulic fluid, wherein the first filter is disposed in a first hydraulic flow path of the subsea control module; a second upstream pressure transducer disposed upstream of the second filter and configured to sense a second upstream pressure of the second hydraulic fluid, wherein the second filter is disposed in a second hydraulic flow path of the subsea control module; a first downstream pressure transducer coupled directly to an output of the first filter and configured to sense a first downstream pressure of the first hydraulic fluid; a second downstream pressure transducer coupled directly to an output of the second filter and configured to sense a second downstream pressure of the second hydraulic fluid; a subsea electronics module coupled to the first upstream pressure transducer, the first downstream pressure transducer, the second upstream pressure transducer, and the second downstream pressure transducer, wherein the subsea electronics module is configured to determine average pressure differential values at different instances based the first upstream pressure and the first downstream pressure or the second upstream pressure and the second downstream pressure; and a master control station coupled to the subsea electronics module and configured to; receive the average pressure differential values from the subsea electronics module; determine a rate of change of the average pressure differential based on the average pressure differential values; extrapolate the rate of change of the average pressure differential to obtain an extrapolated average pressure differential; predict a filter maintenance due time based on the extrapolated average pressure differential, the rate of change of the average pressure differential, and a target maintenance pressure differential; and generate an indication of the predicted filter maintenance due time for an operator of the underwater hydrocarbon well. - View Dependent Claims (12, 13, 14)
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15. A method for monitoring a filter in a subsea control module of an underwater hydrocarbon well, wherein an input of the filter is connected to a hydraulic fluid source to receive a hydraulic fluid, the method comprising:
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receiving average pressure differential values from a subsea electronics module, wherein the subsea electronics module is coupled to an upstream pressure transducer disposed upstream of the filter and a downstream pressure transducer disposed downstream of the filter; determining a rate of change of the average pressure differential based on the average pressure differential values; extrapolating the rate of change of the average pressure differential to obtain an extrapolated average pressure differential; predicting a filter maintenance due time based on the extrapolated average pressure differential, the rate of change of the average pressure differential, and a target maintenance pressure differential; and generating an indication of the predicted filter maintenance due time for an operator of the underwater hydrocarbon well. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification