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US 10,473,816 B2Granted
Calibrations for a well drilling apparatus
AssigneeSchlumberger Technology Corporation
InventorsJames P Belaskie, Jonathan Dunlop, Jose Luis Sanchez, Richard John Harmer, Maurice Ringer, CuiLi Yang
Life of this patent
Estimating the term…
Abstract
A calibration quality associated with a well-drilling apparatus can be determined. A projected value and a calculated value based upon a data set corresponding to a time interval section of a rig state of the well-drilling apparatus can be determined. A difference can be calculated between the projected value and the calculated value. A quality indicator can be applied to the difference, and a calibration quality based upon the application of the quality indicator can be determined.
Claims19
A computing device comprising:
- a memory to store one or more modules;
- a processor operably coupled to the memory, the processor to execute the one or more modules to:
- calculate a projected value and a calculated value based upon a data set of measurements made by at least one formation evaluation or drilling parameter instrument in the wellbore corresponding to at least one time interval section associated with a rig state of a well-drilling apparatus;
- wherein the executed module accepts as input data corresponding to measured parameters associated with at least one intentional set of actions on the well-drilling apparatus (a rig state) from the well-drilling apparatus and calculates the rig state based on the input data;
- the executed module filters the input data to determine when there are sufficient measurements corresponding to the calculated rig state to determine the calculated value (316), and to determine the projected value when there are insufficient measurements (322) corresponding to the calculated rig state;
- calculate a difference between the projected value and the calculated value;
- apply a quality indicator to the difference between the projected value and the calculated value;
- determine a calibration quality based upon the application of the quality indicator to the difference;
- and
- wherein the processor executes the one or more modules to issue an alert notification when the calibration quality exceeds a predefined threshold, and communicates the predicted value to wellsite personnel to enable continued drilling of a well;
- and
- applies the calibration quality to the difference to determine a calibration value, the calibration value used to at least one of,
- (1) automatically calibrating downhole measurements of torque, weight on bit, and/or differential pressure;
- (2) incorporating a torque and drag model to detect and compensate for sticking events during the calibration procedures;
- and
- (3) incorporating cutting transport models to detect and confirm pipe sticking events during the calibration process.
13 more elements
A method comprising:
- accepting as input to a processor input data corresponding to measured parameters associated with at least one intentional set of actions on the well-drilling apparatus (a rig state) from a well drilling apparatus;
- in the processor, calculating a rig state based on the input data, wherein the calculating a rig state comprises in the processor, filtering the input data to determine when there are sufficient measurements corresponding to the calculated rig state to determine a calculated value, and to determine a projected value when there are insufficient measurements corresponding to the calculated rig state;
- calculating, by way of the processor, the projected value and the calculated value based upon a data set of measurements made by at least one formation evaluation or drilling parameter instrument in the wellbore corresponding to at least one time interval section associated with the calculated rig state;
- calculating a difference between the projected value and the calculated value;
- applying a quality indicator to the difference between the projected value and the calculated value;
- determining a calibration quality based upon the application of the quality indicator to the difference;
- issuing an alert notification when the calibration quality exceeds a predefined threshold;
- and
- using the projected value to continue drilling a wellbore;
- and
- applying the calibration quality to the difference to determine a calibration value, the calibration value used to at least one of,
- (1) automatically calibrating downhole measurements of torque, weight on bit, and/or differential pressure;
- (2) incorporating a torque and drag model to detect and compensate for sticking events during the calibration procedures;
- and
- (3) incorporating cutting transport models to detect and confirm pipe sticking events during the calibration process.
12 more elements
A system comprising:
- a well-drilling apparatus, the well-drilling apparatus including a well logging tool for measuring one or more characteristics associated with a section of the well-drilling apparatus;
- and
- a computing device communicatively coupled to the well logging tool, the computing device comprising;
- a memory to store one or more modules;
- a processor operably coupled to the memory, the processor to execute the one or more modules to;
- calculate a projected value and a calculated value based upon a data set of measurements made by at least one formation evaluation or drilling parameter instrument associated with the well logging tool corresponding to at least one time interval section associated with a rig state of the well-drilling apparatus;
- calculate a difference between the projected value and the calculated value;
- apply a quality indicator to the difference between the projected value and the calculated value;
- and
- determine a calibration quality based upon the application of the quality indicator to the difference, characterized by the processor, accepting as input to a processor input data corresponding to measured parameters associated with at least one intentional set of actions on the well-drilling apparatus (a rig state) from a well drilling apparatus;
- calculating a rig state based on the input data, wherein filtering the input data to determine when there are sufficient measurements corresponding to the calculated rig state to determine a calculated value, and to determine a projected value when there are insufficient measurements corresponding to the calculated rig state;
- issuing an alert notification when the calibration quality exceeds a predefined threshold;
- and
- using the projected value as input to direct the well drilling apparatus to continue drilling a wellbore;
- and
- applying the calibration quality to the difference to determine a calibration value, the calibration value used to at least one of,
- (1) automatically calibrating downhole measurements of torque, weight on bit, and/or differential pressure;
- (2) incorporating a torque and drag model to detect and compensate for sticking events during the calibration procedures;
- and
- (3) incorporating cutting transport models to detect and confirm pipe sticking events during the calibration process.
17 more elements
Dependencies are inferred from the claim text.