Measurement of Drilling Fluid Rheology and Modeling of Thixotropic Behavior

Skadsem, Hans Joakim; Leulseged, Amare; Cayeux, Eric

doi:10.1515/arh-2019-0001

Cited by 40 publications

(11 citation statements)

References 21 publications

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“…Skadsem et al [18] reported that their steady rheological measurements (with a smooth bob and container walls) were overall well represented by the Herschel-Bulkley model, except at low shear rates probably due to apparent slip effects or short measurement time. In particular, the model overestimated shear stresses at shear rates lower than ca.…”

Section: Herschel-bulkley Modelmentioning

confidence: 94%

Rheological behavior of a bentonite mud

2020

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Predicting drilling fluids rheology is crucial to control/optimize the drilling process and the gas extraction from drilling fluids in logging systems. A Couette viscometer measured the apparent viscosity of a bentonite mud at various shear rates and temperatures. The bentonite mud behaved as a yield-pseudoplastic fluid, and a modified Herschel-Bulkley model predicted the shear rate and temperature effects upon the shear stress. A pipe viscometer was built to seek a correlation between the mud flow rate and the pressure drop and thereby determine refined Herschel-Bulkley parameters. Coupling a rheological model to a pipe viscometer enables the continuous acquisition of apparent viscosities of Newtonian or non-Newtonian fluids at a rig-site surface.

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Section: Herschel-bulkley Modelmentioning

confidence: 94%

Rheological behavior of a bentonite mud

2020

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“…Vajargah et al [12] presented experimental tests for automated calculations of drilling fluids' properties with the use of a pipe viscometer. Skadsem et al [13] reported a detailed rheological characterization of a water-based drilling fluid and an invert emulsion oil-based drilling fluid and analysed the shear rate step change measurements using a structural kinetics thixotropy model. In terms of successful industrial examples, Stock et al [14] provided a good overview and introduction of industrial control systems and devices used for drilling fluids' propterty measurements and monitoring.…”

Section: Introductionmentioning

confidence: 99%

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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“…The rheological models are essential for drilling mud rheology analysis because they are employed to stimulate the behaviour of drilling mud under different dynamic conditions (Skadsem et al 2019). The rheological models can help us to predict and estimate the following applications/ behaviour (Wiśniowski et al 2020):…”

Section: Rheological Modellingmentioning

confidence: 99%

Rheological characterization of potassium carbonate deep eutectic solvent (DES) based drilling mud

Rasool

Zamir

Elraies

et al. 2021

J Petrol Explor Prod Technol

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Different additives are added in the drilling mud to increase its efficiency in terms of its rheology and filtration properties. Recently, the application of ionic liquids (ILs) has been exploited by various investigators as a drilling additive for improving the mud rheology. The more recent studies have shown that imidazolium-based ionic liquids (the most used class of ionic liquids in drilling fluids) are toxic. Moreover, the advancement in green chemistry has put a big question mark on the greener nature of ionic liquids because they are non-biodegradable and generally very expensive. Deep eutectic solvents (DES) are the non-toxic and cheaper alternative of ionic liquids possessing the same qualities as of ILs. In our previous work, we used potassium carbonate and glycerol-based DES as a drilling fluid additive. We found that DES has successfully improved the mud rheology and filtration properties of the mud. In this current study, various characterizations have been conducted to understand the underlying mechanism behind DES as a rheology modifier. The characterization shows the improvement in rheology is due to the intercalation of DES between alumino-silicate layers and interaction of DES with clay which alters edge to face orientation of sodium bentonite and ultimately its dispersion behaviour. The addition of DES decreases average grain size and disperses the clay particles in mud slurry which reduce the overall permeability and porosity of the filter cake thus improving the filtration behaviour of the mud. Moreover, the behaviour of DES based mud is modelled at 25 °C and 100 °C which shows DES-based mud follows Herschel–Buckley model and exhibits shear thinning behaviour even at elevated temperature.

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Measurement of Drilling Fluid Rheology and Modeling of Thixotropic Behavior

Cited by 40 publications

References 21 publications

Rheological behavior of a bentonite mud

Rheological behavior of a bentonite mud

Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup

Rheological characterization of potassium carbonate deep eutectic solvent (DES) based drilling mud

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