The application of artificial intelligence (AI) has become inevitable in the petroleum industry.
In drilling and completion engineering, AI is regarded as a transformative technology that …

Flow of non-Newtonian fluids in rock fractures is ubiquitous in engineering practice and
involves eg cement flow in tunnel grouting, drilling fluid flow when a fracture is met during …

An evaluation is presented of the practical usage of the Herschel-Bulkley viscosity model for
drilling fluids. If data from automatic viscosity measurements exist, the parameters should be …

The thixotropy of the hydrogel determines the ultimate hydrogel filling shape in the annulus
between the slotted liners and wellbore in horizontal wells. But the common hydrogel cannot …

This paper presents the development and application of a numerical model to predict the
temperature distribution of the vertical borehole system during circulation and shut-in …

The effect of barite particle mass fraction and of particle size distribution on the settling and
sag potential in oil-based drilling fluid samples is investigated for four fluids with densities of …

In this paper, we present a comprehensive review of the methods used for the rheological
characterization of the yield-power-law (YPL) fluids. Ten different rheological …

The drilling process is complex because unexpected situations may occur at any time.
Furthermore, the drilling system is extremely long and slender, therefore prone to vibrations …

Innovation and sustainability are essential in the fast-changing oil and gas business. Fly
ash, a byproduct of coal combustion in power plants and factories, has become a valuable …

During recent years there has been an increased focus on automating drilling operations
and several solutions are in daily use. We describe here results and lessons learned from …