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 drilling rig component having a first feature which decays when the first component is operated;
- a second drilling rig component having a second feature which decays when the second component is operated, wherein the second component is different from the first component;
- a measurement component operably coupled to the component and configured to measure the decay of the first feature or the second feature;
- and
- a health modeling component configured to receive a measurement from the measurement component, wherein the measurement represents the decay of the first measurable feature or the second measurable feature or both, the health modeling component being configured to compute a first Health Index corresponding to the first component and a second Health Index corresponding to the second component.
A method of monitoring a health of one or more components, the method comprising:
- taking a first measurement of a feature of a first drilling rig component;
- taking a second measurement of a feature of a second drilling rig component, wherein the first and second drilling rig 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 comparable scale;
- and
- monitoring at least one of the first and second Health Indices relative to a predetermined Health Index threshold.
A method for predicting a health of a component of an oil rig, the method comprising:
- classifying the drilling rig component and calculating a Health Index for the component, wherein the Health Index includes an initial Health index value;
- identifying conditions for operation of the drilling rig component;
- accessing a database of Health Index information pertaining to drilling rig components similarly classified;
- identifying a time at which the Health Index for the drilling rig component will reach a predetermined threshold according to the Health Index information and the initial Health Index value.
Dependencies are inferred from the claim text.