Study of the Hydraulic Performance of Drill Bits Using a Computational Particle-Tracking Method

Moslemi, Ali; Ahmadi, Goodarz

doi:10.2118/169812-pa

Cited by 21 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The whole calculation area is discretized by structured grid, and the boundary layer grid is divided at the solid wall. In view of the bottom hole submerged jet environment, the length of the calculation domain is usually set to 5 times of its width, which can ensure the full development of the bottom hole flow field, not only can meet the requirements of calculation accuracy [8], but also can save the calculation cost and greatly improve the model calculation efficiency.…”

Section: Calculation Area Establishmentmentioning

confidence: 99%

Study on temperature field of thermal cracking drilling flow field under the condition of bottom hole submerged jet

Wang

Tan

2021

THERM SCI

View full text Add to dashboard Cite

In the deep well bottom hole environment, there are several different substances in the process of pyrolysis drilling, such as high temperature supercritical jet medium, cooling water and cuttings, which can be considered as submerged non free jet of supercritical fluid in low temperature environment. From the energy point of view, there are heat transfer between supercritical fluid and cooling water, heat transfer between supercritical fluid and bottom rock surface, and heat transfer between up flow and well wall. Due to the complexity of the components, the transfer process of these energies is very complex, which has an important impact on the efficiency of thermal cracking drilling. Therefore, it is of great significance to study the heat transfer law under the condition of bottom hole submergence.

show abstract

Section: Calculation Area Establishmentmentioning

confidence: 99%

Study on temperature field of thermal cracking drilling flow field under the condition of bottom hole submerged jet

Wang

Tan

2021

THERM SCI

View full text Add to dashboard Cite

show abstract

“…Taking advantage of the various applications of the Euler-Lagrange approach, many studies have been conducted, such as the evaluation of the deposition of pharmaceutical aerosols in human airways under different respiratory conditions [1], the design modification of cyclone separators [2], the insertion of a twisted tape to reduce elbow erosion [3], and the evaluation of the hydraulic performance of fixed cutter drill bits [4]. Another advantage is providing full information on particle trajectories and predicting differences in local particles' velocities, particle-particle collisions, and particle-wall interactions [5].…”

Section: Introductionmentioning

confidence: 99%

Application of the Euler–Lagrange Approach and Immersed Boundary Method to Investigate the Behavior of Rigid Particles in a Confined Flow

Borges,

Puelles,

Demicoli

et al. 2023

Axioms

View full text Add to dashboard Cite

The presence of particles with a small but finite size, suspended in viscous fluids with low volumetric concentrations, is observed in many applications. The present study focuses on the tridimensional and incompressible lid-driven flow of Newtonian fluids through the application of the immersed boundary method and the Euler–Lagrange approach. These methods are used to numerically predict three-dimensional particle motion by considering nearly neutrally buoyant conditions as well as all relevant elementary processes (drag and lift forces, particle rotation, particle–wall interactions, and coupling between phases). Considering the current stage of the numerical platform, two coupling approaches between phases are considered: one-way and two-way coupling. A single particle is inserted in the cavity after steady-state conditions are achieved. Its three-dimensional motion is obtained from numerical simulations and compared with research data, considering the same conditions, evidently showing that the particle trajectory follows the experimental data until the first collision with a solid surface. After this first contact, there is a deviation between the results, with the two-way coupling results better representing the experimental data than the one-way coupling results. The dimensionless forces’ peaks acting on the particles are associated with the relative velocity of the particle near the wall–particle collision position. In terms of magnitude, in general, the drag force has shown greater influence on the particle’s motion, followed by the rotation-induced and shear-induced lift forces. Finally, a special application is presented, in which 4225 particles are released into the domain and their dynamic is evaluated throughout dimensionless time, showing similar behavior for both couplings between phases, with variations in local concentrations observed in certain regions. The mean square displacement used to quantify the dispersion evolution of the particles showed that the particulate flow reaches an approximately homogeneous distribution from the moment of dimensionless time tU/S = 130.

show abstract

“…Mezhericher et al [20] used Fluent DPM methods to track particle trajectories; the calculation results revealed that the DPM method was more suitable for the simulation of flow fields whose particle volume fraction was below 10%, and the mixed fluid with this concentration ratio was also suitable for AWJ rust removal. Moslemi et al [21] studied the hydraulic characteristic of drill bits by Ansys Fluent software and applied DPM to track the cuttings. The simulation results indicated that the DPM method was more suitable for the prediction of hydraulic characteristics of liquid particle two-phase mixed fluid considering the interaction of the solid-liquid two phases.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Experimental Investigation of Rotating Blade Centrifugal Jet in Slurry Blast Device Used for Steel Strip Descaling

Huo

Huang³

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

Under the requirement of clean production, a new type of slurry blast device for mechanically removing oxide scale on the surface of steel strips is presented, which can avoid the serious problems of rapid wear, low service life, and low efficiency of the traditional abrasive water jet with a nozzle. In this paper, the numerical simulation of the rotating blade centrifugal jet in the slurry blast device is conducted based on CFD, where the DPM and the erosion model are innovatively employed to simulate the movement characteristics of abrasive particles and the erosion rate of mixed slurry on the surface of the steel strip. Simulation results show that the erosion rate and particle motion velocity are proportional to the blade rotation speed and inlet pressure. Reasonable inlet pressure and rotation speed are helpful for improving the rust removal efficiency of slurry blast devices. An experimental system is established to validate the simulation results. The experimental results are consistent with the simulation trend, which exhibits that the developed slurry blast device is feasible for steel strip descaling. This work will play substantial guiding roles in the engineering optimization of slurry blast devices for steel strip descaling.

show abstract

Study of the Hydraulic Performance of Drill Bits Using a Computational Particle-Tracking Method

Cited by 21 publications

References 9 publications

Study on temperature field of thermal cracking drilling flow field under the condition of bottom hole submerged jet

Study on temperature field of thermal cracking drilling flow field under the condition of bottom hole submerged jet

Application of the Euler–Lagrange Approach and Immersed Boundary Method to Investigate the Behavior of Rigid Particles in a Confined Flow

Numerical Simulation and Experimental Investigation of Rotating Blade Centrifugal Jet in Slurry Blast Device Used for Steel Strip Descaling

Contact Info

Product

Resources

About