The downhole high-temperature problem has become a bottleneck that restricts the efficient
development of deep shale gas resources in China. This study highlights the characteristics …

The increasing necessity of challenging wellbore structures and drilling optimization for
improved hole cuttings cleaning has been growing along time. As a result, operator …

Drill pipe rotation is considered a relevant factor for cuttings transport and hole cleaning.
However, in the term “rotation” is often used as a moniker for the combination of plain drill …

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

Equivalent circulating density (ECD) is considered a critical parameter during the drilling
operation, as it could lead to severe problems related to the well control such as fracturing …

To prevent drilling fluid losses into formation at the High Pressure High Temperature (HPHT)
conditions in oil/gas wellbores, it is highly necessary to have enough information about …

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

Surge and swab pressures have been known to cause formation fracture, lost circulation,
and well-control problems. Accurate prediction of these pressures is crucially important in …

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

Abstract Knowledge about rheology of drilling fluid at wellbore conditions (High pressure
and High temperature) is a need for avoiding drilling fluid losses through the formation …