Hole cleaning during directional well drilling is a major concern in the oil patch and must be
monitored and properly controlled during the entire drilling operation. Inadequate drilled …

In oil and gas exploration and development, drilling a hole is one of the first and most
expensive operations. The continuous demand from industry to reduce costs and …

According to oilfield drilling records, improper transport of rock cuttings caused by
eccentricity has led to some serious problems, such as mechanical pipe sticking, high fluid …

Hole cleaning for the majority of vertical and directional drilling wells continues to be a
substantial difficulty despite improvements in drilling fluids, equipment, field techniques, and …

Increased demand for energy resulted in the expansion of drilling activities worldwide. Any
improvement in terms of well planning and drilling operation can result in significant savings …

The main challenge in deviated and horizontal well drilling is hole cleaning, which involves
the removal of drill cuttings and maintaining a clean borehole. Insufficient hole cleaning can …

Directional and horizontal drilling operations are increasingly conducted in all over the
world, especially parallel to the growth of the technological developments in the industry …

In a horizontal well drilling operation, a part of generated drill cuttings tends to settle down at
a lower annular section. Formation of sand bed causes several operational issues such as …

This study aims to estimate the critical fluid flow velocity for preventing the development of a
stationary bed using empirical correlations valid for horizontal and highly inclined wellbores …

Hole cleaning in directional well drilling must be monitored and properly controlled during
the entire drilling operation. Hole cleaning for intermediate inclined wells is particularly …