The problem of high friction and high torque is one of the most troublesome problems for
engineers in extended reach wells and long horizontal wells. Generally, the friction …

An important aspect of hydrocarbon drilling is the usage of drilling fluids, which remove drill
cuttings and stabilize the wellbore to provide better filtration. To stabilize these properties …

The oil-based drilling fluids are widely used in well drilling. An experimental study on the
effect of the addition of silicon oxide nanoparticles of various concentrations on the oil-based …

This paper presents the results of silicon oxide nanoparticles-incorporated drilling fluid
filtration through a porous medium with different permeability. A water-based clay …

The effect of nanoparticles of various chemical components and sizes on the rheological
behaviour of drilling fluids, pressure loss and cuttings transport in the vertical borehole for a …

Drilling fluid additives play a vital role in modifying the drilling fluid properties for the ease of
drilling operations in oil and gas wells. In this work, two different drilling fluid additives such …

The drilling of clay-rich formations, such as shale, is an extremely demanding technical and
technological process. Shale consists of mixed clay minerals in different ratios and in contact …

During the drilling of a well, differential pressure causes filtration of the mud liquid phase into
the surrounding rocks. To reduce the filtrate invasion in the rock, it is necessary to maintain …

Wellbore stability is one of the challenges in the drilling industry. Shale formation is one of
the most problematic rocks during drilling because the rock has very low permeability and …

Sažetak Od prepoznavanja potencijala nanočestica u naftnoj industriji, iz godine u godinu
njihov značaj te broj eksperimenata i terenskih testnih primjena sve više raste. Nanočestice …