Backfilling technology is recognized as a consensus to achieve green and safe developing
of mineral resources that could effectively fill the underground goafs using mine waste and …

Cuttings transport is a topic of great interest in the oil and gas drilling industry. Insufficient
cuttings transport leads to several expensive problems. Knowledge and selection of the …

An experimental study followed by comprehensive flow modeling is presented. The
experiments were conducted on a horizontal annulus with drillstring under compression …

A thorough understanding and accurate prediction of non-Newtonian fluid flow dynamics in
rotating annular media are of paramount importance to numerous engineering applications …

The drilling process in shale formations and well stability in the presence of shale are
among the most challenging issues in the drilling industry. Routinely, oil-based drilling fluids …

Hole cleaning and cuttings transport play a vital role in the drilling operation. Various drilling
problems such as a reduction in penetration rate, an increase in the torque and drag, and an …

The cuttings transport during well drilling was numerically simulated based on kinetic theory
of granular flow in combination with sliding mesh for drill pipe rotation. The power-law model …

This study presents a hybrid modeling approach combining physics-based and data-driven
models for improved standpipe pressure prediction during well constructing. The proposed …

The process of drilling a borehole is very complex, involving surface and downhole drilling
systems, which interact with the drilling fluid and the surrounding rocks. Modeling and …

Keeping the drilling fluid equivalent circulating density in the operating window between the
pore and fracture pressure is a challenge, particularly when the gap between these two is …