Estimating a wellbore parameter
AssigneeHalliburton Energy Services, Inc.
InventorsMichael Linley Fripp, Jason D. Dykstra
Life of this patent
Estimating the term…
Abstract
A system for estimating a wellbore parameter includes a first component located at or near a terranean surface; a second component at least partially disposed within a wellbore at or near a subterranean zone; and a controller communicably coupled to the first and second components. The second component is associated with a sensor. The controller is operable to: adjust a characteristic of an input fluid to the wellbore through a range of input values; receive, from the sensor, a plurality of output values of the input fluid that vary in response to the input values, the output values representative of a downhole condition; and estimate a wellbore parameter distinct from the downhole condition based on the measured output values.
Claims27
A method for estimating a downhole wellbore parameter, comprising:
- adjusting a characteristic of an input fluid to a wellbore through a first range of input values of the input fluid;
- measuring, in the wellbore, a first plurality of output values of the input fluid that vary in response to the first range of input values, the first plurality of output values representative of a downhole condition of a downhole system;
- based on the measured first plurality of output values, calibrating at least one downhole sensor operable to measure the first plurality of output values;
- subsequent to the calibration, adjusting the characteristic of the input fluid to the wellbore through a second range of input values;
- measuring, in the wellbore, a second plurality of output values of the input fluid that vary in response to the input values in the second range, the second plurality of output values representative of the downhole condition;
- and
- estimating a wellbore parameter distinct from the downhole condition based on the measured second plurality of output values.
A system for estimating a wellbore parameter, comprising:
- a first component located at or near a terranean surface;
- a second component at least partially disposed within a wellbore at or near a subterranean zone, the second component associated with a sensor;
- and
- a controller communicably coupled to the first and second components, the controller operable to:
- adjust a characteristic of an input fluid to the wellbore through a first range of input values of the input fluid;
- receive, from the sensor, a first plurality of output values of the input fluid that vary in response to the input values, the first plurality of output values representative of a downhole condition;
- and
- receive a second plurality of output values of the input fluid that are measured at or near the terranean surface and vary in response to the input values;
- compare the measured first plurality of output values of the input fluid that are measured in the wellbore to the measured second plurality of output values of the input fluid that vary in response to the input values;
- based on the comparison of the measured first plurality of output values and the measured second plurality of output values, calibrate the sensor;
- and
- estimate a wellbore parameter distinct from the downhole condition based on the measured output values.
Dependencies are inferred from the claim text.