CALIBRATION OF HYDRAULIC PARAMETERS DURING DRILLING
Publication Date: 2017-Jan-19
The IP.com Prior Art Database
Numerical modeling may be employed to describe the motion and pressure of mud during drilling. However, these types of computation are time consuming and may call for a large amount of computer resources to enable use in real-time during drilling operations. Accordingly, correlations among parameters have been developed based on measurements of different quantities. These correlations are used in the field in many hydraulic models. However, some physical phenomena are not captured by these kinds of models. As an example, the edge of the tool joints may induce recirculation or vortex at small scale in the mud during circulation. This effect may modify the pressure in the well at a second order, but may not be captured by the model representation of the system.