Simultaneous Continuous Monitoring of the Drilling-Fluid Friction Factor and Density

Carlsen, Liv A.; Rolland, Nils Lennart; Nygaard, Gerhard; Time, Rune W.

doi:10.2118/163101-pa

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…The idea behind this proposed standpipe concept is to use differential pressure sensors installed in surface connections of the circulating system in a drilling rig, in order to measure differential pressures continuously that would then be used to calculate density and viscosity of fluids being pumped into the well. Such concept has been proposed and demonstrated in [15,16]. Based on such idea, one experimental system was setup at University of Stavanger, Norway in 2016 for testing and evaluation.…”

Section: Methodsmentioning

confidence: 99%

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Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup

Sui

Vidaur

2020

Applied Rheology

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The automation towards drilling fluid properties’ measurement has been pursued in the recent years in order to increase drilling efficiency with less human intervention. Adequately monitoring and adjusting density and rheology of drilling fluids are fundamental responsibilities of mud engineers. In this study, experimental tests that automatically characterize fluids were conducted. The basic objective is to measure the differential pressures along two sections of the pipes: one horizontal section and one vertical section. Using such measuring data, mathematical algorithms are then proposed to estimate fluids’ density and subsequently viscosity with respect to flow regimes, laminar and turbulence. The results were compared and validated with the values measured on rotational rheometers. With the help of models and numerical schemes, the work presented in the paper reveals a good opportunity to improve the accuracy and precision of continuous-measuring and monitoring fluids’ properties.

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Section: Methodsmentioning

confidence: 99%

“…From 2013, we have been working on fluids' properties automatic evaluation and published many related works, see [15][16][17]. The aim of our work is to have good proof of concept tests for automated fluids' properties measurements in a laboratory scale system, that could potentially be the basis for a real-time monitoring arrangement.…”

Section: Introductionmentioning

confidence: 99%

Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup

Sui

Vidaur

2020

Applied Rheology

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“…An alternate approach to the one based on velocimetry consists of measuring the pressure gradient for various bulk fluid velocities while circulating the fluid in pipes [6]. This method has the advantage of working with fluids that are completely opaque to or that cause a high degree of diffraction of the radiations from possible illuminating sources.…”

Section: Introductionmentioning

confidence: 99%

Precise Method to Estimate the Herschel-Bulkley Parameters from Pipe Rheometer Measurements

Magnon

Cayeux

2021

Fluids

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Accurate characterization of the rheological behavior of non-Newtonian fluids is critical in a wide range of industries as it governs process efficiency, safety, and end-product quality. When the rheological behavior of fluid may vary substantially over a relatively short period of time, it is desirable to measure its viscous properties on a more continuous basis than relying on spot measurements made with a viscometer on a few samples. An attractive solution for inline rheological measurements is to measure pressure gradients while circulating fluid at different bulk velocities in a circular pipe. Yet, extracting the rheological model parameters may be challenging as measurement uncertainty may influence the precision of the model fitting. In this paper, we present a method to calibrate the Herschel-Bulkley rheological model to a series of differential pressure measurements made at variable bulk velocities using a combination of physics-based equations and nonlinear optimization. Experimental validation of the method is conducted on non-Newtonian shear-thinning fluid based on aqueous solutions of polymers and the results are compared to those obtained with a scientific rheometer. It is found that using a physics-based method to estimate the parameters contributes to reducing prediction errors, especially at low flow rates. With the tested polymeric fluid, the proportion difference between the estimated Herschel-Bulkley parameters and those obtained using the scientific rheometer are −24% for the yield stress, 0.26% for the consistency index, and 0.30% for the flow behavior index. Finally, the computation requires limited resources, and the algorithm can be implemented on low-power devices such as an embedded single-board computer or a mobile device.

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Water density–pressure–temperature modeling for drilling fluids in real-time HPHT applications

Gjerstad

2025

Geoenergy Science and Engineering

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Simultaneous Continuous Monitoring of the Drilling-Fluid Friction Factor and Density

Cited by 8 publications

References 16 publications

Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup

Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup

Precise Method to Estimate the Herschel-Bulkley Parameters from Pipe Rheometer Measurements

Water density–pressure–temperature modeling for drilling fluids in real-time HPHT applications

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