Rig systems self diagnostics
AssigneeSchlumberger Technology Corporation
InventorAlejandro Camacho Cardenas
Life of this patent
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Abstract
Systems and methods for calculating a standardized Health Index for a plurality of different components are shown and described. There is a vast number of different components used on an oil rig and each one may have a different definition of new, worn, damaged, or depleted. The system includes a measurement component that takes a measurement of the different components, and a health modeling component which calculates the standardized Health Index. Monitoring the Health Indices provides a rig operator information from which decisions on equipment use can be made.
Claims26
A system for deriving a numerical Health Index for one or more components, the system comprising:
- a first component having a first feature which decays when the first component is operated, wherein the first component comprises part of a drilling rig;
- a second component having a second feature which decays when the second component is operated, wherein the second component comprises another part of the drilling rig, and wherein the second component is different from the first component;
- a measurement sensor operably coupled to the first component and the second component and configured to measure a first decay of the first feature and a second decay of the second feature;
- and
- a health model configured to receive a measurement from the measurement sensor, wherein the measurement represents the first decay and the second decay, the health model being configured to compute a first Health Index corresponding to the first component and a second Health Index corresponding to the second component, wherein the first and second Health Indices are on a same scale,
- wherein the system is configured to alter operation of the first and second components to cause the first and second Health Indices to reach a threshold at a same time, wherein an operation of the drilling rig is stopped to perform maintenance on the first and second components when the first and second Health Indices to reach the threshold, and wherein performing the maintenance on the first and second components at the same time reduces an amount of time that the operation of the drilling rig is stopped.
A method of monitoring a health of one or more components, the method comprising:
- taking a first measurement of a feature of a first component, wherein the first component comprises part of a drilling rig;
- taking a second measurement of a feature of a second component, wherein the second component comprises another part of the drilling rig, and wherein the first and second components are different;
- calculating a first Health Index and a second Health Index from the first and second measurements, respectively, wherein the first and second Health Indices are on a same scale;
- monitoring at least one of the first and second Health Indices relative to a predetermined Health Index threshold;
- and
- altering operation of the first and second components to cause the first and second Health Indices to reach the predetermined Health Index threshold at a same time, wherein an operation of the drilling rig is stopped to perform maintenance on the first and second components when the first and second Health Indices reach the predetermined Health Index threshold, and wherein causing the first and second Health Indices to reach the predetermined Health Index threshold at the same time reduces an amount of time that the operation of the drilling rig is stopped.
A method for predicting a health of one or more components of an oil rig, the method comprising:
- calculating a first Health Index for a first component of the oil rig;
- calculating a second Health Index for a second component of the oil rig;
- identifying conditions for operation of the first and second components;
- accessing a database of Health Index information pertaining to other components that are classified the same as the first and second components;
- and
- altering operation of the first and second components to cause the first and second Health Indices to reach a predetermined threshold at a same time according to the first and second Health Indices and the Health Index information, wherein an operation of the oil rig is stopped to perform maintenance on the first and second components when the first and second Health Indices reach the predetermined threshold, and wherein causing the first and second Health Indices to reach the predetermined threshold at the same time reduces an amount of time that the operation of the oil rig is stopped.
Dependencies are inferred from the claim text.