Fluctuating Pressure Calculation during the Progress of Trip in Managed Pressure Drilling

Shu Jiang Wang; Qiang Cao; Kang Bo

doi:10.4028/www.scientific.net/AMR.468-471.1736

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 468-471Fluctuating Pressure Calculation during the...

Fluctuating Pressure Calculation during the Progress of Trip in Managed Pressure Drilling

Abstract:

The calculation of fluctuating pressure is necessary during the progress of trip in the managed pressure drilling, because the bottomhole pressure should be constant during the progress of trip. The prediction model of the fluctuating pressure during the progress of trip was established based on the unsteady flowing theory. The actual application state of the prediction model was presented through a computational example. By the comparison between the computational result and the field test result, the computational result matches the field test result very well, which indicates the rationality and the accuracy of the model.