Hydraulic calibration of equivalent density

Details Hydraulic calibration of equivalent density Hydraulic calibration of equivalent density

E - Fixed Constructions

21

B

E21B 47/06 (2006.01) E21B 21/08 (2006.01)

Patent

CA 2321486

In a drilling system for drilling a well borehole from a surface location, hydraulic calibration is performed by making a plurality of hydraulic calibration measurements, each hydraulic calibration measurement being made at a respective drill-string RPM and flow-rate within a hydraulic calibration range. A hydraulic baseline function is then determined which predicts, within a predetermined degree of accuracy, each of the plurality of hydraulic calibration measurements.

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