scholarly journals PHPA as a Frictional Pressure Loss Reducer and its Pressure Loss Estimation

2009 ◽  
Author(s):  
Can Ercan ◽  
Mehmet Evren Ozbayoglu
Keyword(s):  
Pressure Loss ◽  
Loss Estimation

A Study on the Impact of Rheological Measurement Technique on Pressure Loss Estimation Uncertainty

2021 ◽  
Author(s):  
Fionn Iversen ◽  
Jan Ove Brevik ◽  
Knut Taugbøl
Keyword(s):  
Rheological Properties ◽  
High Precision ◽  
Pressure Loss ◽  
Loss Estimation ◽  
Drilling Process ◽  
Flow Loop ◽  
Horizontal Pipe ◽  
Line Pipe ◽  
Essential Information ◽  
The Impact

Abstract Drilling fluid rheology measurements provide input to flow frictional pressure loss calculations during drilling operations. This study compares the impact of uncertainty of different rheology measurement methods on pressure loss estimation through a series of flow-loop experiments. The rheological properties of drilling fluids are measured using a high precision Anton Paar rheometer, in-line pipe rheometer and conventional model 35 lab viscometers. The derived viscosity is used to calculate the frictional pressure loss with uncertainty, comparing with in-situ pressure loss observations from flow-loop experiments. The experiments are performed for steady-state, laminar horizontal pipe flow at atmospheric pressure. The results illustrate the impact different measurement techniques have on the accuracy of the modelled frictional pressure loss. The potential of the pipe rheometer is investigated with respect to use of measured frictional pressure loss data to predict pressure loss in wells and annulus directly. Finally, the effect of variation in the rheological properties have been illustrated on a simulated case downhole. This study highlights differences in uncertainty range for conventional viscometers in comparison to a high precision rheometer and the propagation of uncertainty to the frictional pressure loss estimation. Quantification of the uncertainty of the modelled frictional pressure is essential information for application of downhole pressure estimation in managing the drilling process. The existing procedure of using conventional viscometers may not be sufficient when accurate pressure control is needed.

scholarly journals A numerical framework for heat transfer and pressure loss estimation of matrix cooling geometry in stationary and rotational states

2019 ◽  
Vol 76 (5) ◽  
pp. 348-368 ◽  
Author(s):  
S. Mostafa Hosseinalipour ◽  
Parisa Afkari ◽  
Hamidreza Shahbazian ◽  
Bengt Sundén
Keyword(s):  
Heat Transfer ◽  
Pressure Loss ◽  
Loss Estimation ◽  
Rotational States

scholarly journals 4D Flow MRI-based pressure loss estimation in stenotic flows: Evaluation using numerical simulations

2015 ◽  
Vol 75 (4) ◽  
pp. 1808-1821 ◽  
Author(s):  
Belen Casas ◽  
Jonas Lantz ◽  
Petter Dyverfeldt ◽  
Tino Ebbers
Keyword(s):  
Numerical Simulations ◽  
Pressure Loss ◽  
Loss Estimation ◽  
4D Flow Mri ◽  
4D Flow ◽  
Flow Mri
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