Viscoplastic displacements in axially rotating pipes

Lyu, Shan; Taghavi, Seyed Mohammad

doi:10.1016/j.jnnfm.2020.104353

Cited by 11 publications

(3 citation statements)

References 55 publications

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“…Different relevant geometry shapes were investigated, e.g., the Hele-Shaw cell [4][5], rectangular channels [6][7], pipes [8][9], eccentric annuli [10][11], and capillary tubes [12][13]. In addition, the displacement flow could be performed in stationary pipes [14][15] and rotating pipes [16][17][18]. Moreover, the displacement flow in pipes can be carried out in horizontal [12,[19][20], tilt [21][22], and vertical [23] directions.…”

Section: Introductionmentioning

confidence: 99%

A quantitative study of immiscible and miscible displacement flows in a rotating pipe

Liu,

Hassanzadeh,

Akbari

et al. 2023

Progress in Canadian Mechanical Engineering. Volume 6

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Displacements of oil-based and water-based fluids, corresponding to miscible and immiscible fluids, exist widely in well cementing processes in the oil & gas industry. In this paper, we experimentally investigate the density-unstable miscible and immiscible displacement flows in an axially rotating pipe. The density of displacing fluid is larger than that of the displaced fluid (𝜌 ̂𝐻 > 𝜌 ̂𝐿). In our experiments, the density difference (quantified via 𝐴𝑡 = 0.041 ), the viscosity ratio ( 𝑀 = 0.22 ), and the inclination angle ( 𝛽 = 83°) are kept constant. The pipe rotating speed (𝜔 ̂) and imposed flow velocity ( 𝑈 ̂0 ) are the most critical parameters in this study.Correspondingly, the effects of the imposed flow inertia and rotating inertia are investigated. Sequences of images are captured by a high-speed camera and their spatiotemporal concentration profiles are analyzed. The immiscible displacement flows are quantitatively analyzed and compared with miscible displacement flows. Based on our results, two kinds of downstream interfacial fronts are found in the immiscible displacement flow, but only one is witnessed in the miscible displacement flow. Also, our results show that, by increasing the imposed flow velocity, the interfacial front moves faster. On the other hand, when increasing the rotating speed, the first front velocities are slower. For displacement flows without a rotation, the first front velocities of the miscible displacement flows are smaller than those of the immiscible conditions. Nevertheless, for the displacement flows with a rotation, the first front velocities of the miscible displacement flows are larger than those of the immiscible conditions.

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Section: Introductionmentioning

confidence: 99%

A quantitative study of immiscible and miscible displacement flows in a rotating pipe

Liu,

Hassanzadeh,

Akbari

et al. 2023

Progress in Canadian Mechanical Engineering. Volume 6

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“…The combined effects of the aforementioned parameters on the buoyant miscible displacement flows in the stationary vertical pipes are studied in detail in the literature [5,6], both experimentally and numerically. In addition to effective fluid properties and flow parameters, on-site tests and various theoretical, experimental, and numerical studies have demonstrated the positive effects of pipe rotation on displaced fluid removal efficiency [7,8,9], especially for primary well cementing applications. Modeling the effects of the density difference between fluids indicates that the buoyancy force is relatively weakened by applying pipe axial movement [10], resulting in improving the in-place fluid displacement.…”

Section: Introductionmentioning

confidence: 99%

“…First, as previously mentioned, there is a general lack of knowledge regarding the effects of pipe rotation on displacement flows. Second, previous studies have largely focused on the displacement flow of viscoplastic fluids by Newtonian fluids [7], with only a few investigating the displacement of a Newtonian fluid by a viscoplastic fluid [12,13]. Given the poorly developed state of the literature on these two aspects, we seek to experimentally study the buoyant miscible displacement flow of a Newtonian fluid (water) by a viscoplastic fluid (Carbopol solution) in a vertical pipe with axial rotation, with potential applications in the primary well cementing process [1].…”

Section: Introductionmentioning

confidence: 99%

Viscoplastic fluid displacement flow in pipes : the effects of pipe axial

Kazemi,

Akbari,

Hassanzadeh

et al. 2023

Progress in Canadian Mechanical Engineering. Volume 6

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This study investigates experimentally the influence of a pipe axial rotation on the buoyant miscible displacement flow of a Newtonian fluid by a viscoplastic fluid in a vertical pipe. Within the range of operational flow and fluid parameters examined in this study, the emergence of separation and nonseparation flow regimes was observed as the heavy fluid was imposed. The effects of the pipe axial rotation on these flow regimes and front velocities were compared. The results indicate that the addition of axial rotation to the pipe at low values of the imposed flow rate can result a transition from the separation regime to the non-separation regime. However, for high values of the imposed velocity, the displacement flow regime remains largely unchanged when the pipe axial rotation is applied. Additionally, the displacement front velocity (𝑉 ̂𝑓) decreases in the domain where the separation regime occurs when rotational speed is increased.

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Horizontal cementing displacement flows of shear-thinning fluids, with and without casing rotation

Renteria

Frigaard

2023

Geoenergy Science and Engineering

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Viscoplastic displacements in axially rotating pipes

Cited by 11 publications

References 55 publications

A quantitative study of immiscible and miscible displacement flows in a rotating pipe

A quantitative study of immiscible and miscible displacement flows in a rotating pipe

Viscoplastic fluid displacement flow in pipes : the effects of pipe axial

Horizontal cementing displacement flows of shear-thinning fluids, with and without casing rotation

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