Herschel–Bulkley rheological parameters of lightweight colloidal gas aphron (CGA) based fluids

Ziaee, Hossein; Arabloo, Milad; Ghazanfari, Mohammad Hossein; Rashtchian, Davood

doi:10.1016/j.cherd.2014.03.023

Cited by 60 publications

(30 citation statements)

References 39 publications

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“…The exponent n represents shear thinning behavior of the drilling mud when n < 1 and shear thickening behavior when n > 1. 35,46 Table 2 shows that n < 1 for each DF at various concentrations of CNPs, thus indicating shear thinning behavior. Furthermore, we clearly observe that a higher yield stress is achieved by the addition of 0.5 wt% CNPs.…”

Section: Constitutive Rheological Modelsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Corncob Cellulose Nanoparticles on Silicate-Based Mud at High Temperature

Hamad¹,

He²,

Xu³

et al. 2020

Cellulose Chem. Technol.

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Silicate muds have been successfully used in drilling operations in shale formations. However, the application of silicate muds has shown challenges in controlling their rheological behavior. In this work, a low cost, environmentally friendly and high-performance silicate-based drilling fluid was developed using cellulose nanoparticles (CNPs) extracted from corncob. The study investigates the potential effect of corncob CNPs for improving critical drilling mud properties: rheology and filtration loss at high temperature. The extracted CNPs were characterized by a combination of spectroscopic and chemical techniques, such as FTIR, TEM, SEM and Zeta potential. The concentrations of CNPs were varied from 0.1 to 0.5 wt% by the weight of the drilling mud at different temperatures from 150 °C to 170 °C. The experimental results show that CNPs in silicate-based mud substantially improve both filtration and rheological properties. The CNPs not only improved the rheological properties and reduced the filtration loss behavior, but also bolstered the temperature resistance of the drilling mud formulation. In addition, the shear-thinning behavior of the silicate-based drilling mud with CNPs was measured using Bingham-Plastic, and Herschel-Bulkley models. The results show that the Herschel-Bulkley model adequately describes the shear-thinning relationship between the shear stress and shear-strain rate of the CNP silicate-based mud.

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Section: Constitutive Rheological Modelsmentioning

confidence: 99%

“…The Herschel-Bulkley model is a combination of the Bingham plastic model and the power model, and can be represented mathematically as follows: 35,36 (6) where k is the flow consistency coefficient and n is the flow behavior index.…”

Section: Rheological Modelingmentioning

confidence: 99%

Effect of Corncob Cellulose Nanoparticles on Silicate-Based Mud at High Temperature

Hamad¹,

He²,

Xu³

et al. 2020

Cellulose Chem. Technol.

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“…[14] Rheological properties of CGAs have also been investigated by several researchers. [15][16][17] The stability of CGAs is a critical property for the above-mentioned applications. [18] The high stability of CGA dispersion shows its ability to resist changes in bubble size and liquid content.…”

Section: Introductionmentioning

confidence: 99%

Toward the Effects of the Geometric and Operating Parameters on Colloidal Gas Aphron Stability

Sadeghi‐Aliabadi

Amiri

2015

Journal of Dispersion Science and Technology

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Colloidal gas aphrons (CGAs), which have an average diameter of 50 lm, offer particular advantages for applications such as aphron drilling, waste water treatment, separation, and recovery of a wide variety of valuable materials. Stability of aphron bubbles has a key role on their performance in mentioned applications. However, study on the effect of geometric specifications of aphron generator on CGA stability is very limited. In this experimental study, the influence of diameter of spinning disk, baffle position, mixing time, and surfactant concentration on stability and gas holdup of generated CGAs have been investigated simultaneously. It was found that stability of CGA dispersion can be controlled with changing the diameter of disk and baffle position in aphron generator particularly when the mixing time or surfactant concentration is low. Gas holdup was found to depend mainly on surfactant concentration and mixing time. Also, baffle position has a minor effect on gas holdup.

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“…Choosing the best drilling fluid is crucially significant. Aerated fluids are widely acceptable to the procedure and broadly used as light fluid in UBD [6][7][8]. Cleaning capability is one the most important criteria in drilling fluid efficacy [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Application of SVM Algorithm for Frictional Pressure Loss Calculation of Three Phase Flow in Inclined Annuli

Shahdi¹,

Arabloo²

2014

J Pet Environ Biotechnol

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In Underbalanced Drilling (UBD) operation, the presence of three phases including, drilling fluid, air and cuttings, makes the estimation of equivalent circulation density more difficult. This study presents a novel computer-based model namely Lease Square Support Vector Machine (LS-SVM), for frictional loss calculation of two-phase gas based drilling fluids with the presence of cuttings as the third phase in inclined section of wellbore. This model is based on extensive experimental data collected from published literature. This model is account for in situ flow rate of each phase, Rate of Penetration (ROP), pipe rotation, and hole inclination. The results show that the proposed model is predicting frictional pressure losses in acceptable agreement with experimental data with very high correlation coefficient (>0.99) and small average relative error. Moreover, a trend analysis was carried out to check the validity of the developed model. Results of the present study show that implementation of this developed model can be incorporated in drilling simulators for accurate estimation of frictional pressure loss of three phase flow.

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Herschel–Bulkley rheological parameters of lightweight colloidal gas aphron (CGA) based fluids

Cited by 60 publications

References 39 publications

Effect of Corncob Cellulose Nanoparticles on Silicate-Based Mud at High Temperature

Effect of Corncob Cellulose Nanoparticles on Silicate-Based Mud at High Temperature

Toward the Effects of the Geometric and Operating Parameters on Colloidal Gas Aphron Stability

Application of SVM Algorithm for Frictional Pressure Loss Calculation of Three Phase Flow in Inclined Annuli

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