Downhole load cell
AssigneeSchlumberger Technology Corporation
InventorL. Michael McKee
Life of this patent
Estimating the term…
Abstract
A downhole load cell calibrated for enhanced accuracy. The load cell may be a dry load cell calibrated by storage of pre-determined temperature and pressure data relative to the load cell based on known loads applied thereto. Thus, surface equipment employed with the load cell may include a computer program that takes advantage of the stored pre-determined information. The computer program may then be employed for calibration of downhole load cell data based on readings from the load cell along with downhole temperature and pressure information.
Claims16
A method of determining a calibrated load on a well access assembly line at a downhole location in a well at an oilfield, the method comprising:
- delivering a dry downhole load cell to the downhole location with the well access assembly line;
- acquiring downhole temperature information from the downhole location;
- supplying downhole pressure information relative to the downhole location;
- and
- calibrating downhole load data detected by the downhole load cell at the downhole location based on pre-determined data relative to the downhole load cell.
Dependencies are inferred from the claim text.