Set of measures to prevent liner sticking during directional drilling

Abstract

The study considers the sticking problems of drilling. The study presents the classification and gives a general characteristic of liners. It is shown that the largest number of troubles occurs due to differential sticking. Differential sticking and methods of its elimination are considered in detail. The set of measures to prevent sticking, including the use of the Rhino XC Tool borehole expander, filters with plugs, dry lubrication, eccentric shoe, is developed and proposed.

The use of nanoparticles to enhance oil recovery

“…Various methods using nanotechnology are being considered, and the use of nanorobots to study the formation in real time seems very promising. These tiny robots will be able to provide operators with useful information for better drilling operations, such as dynamic adaptation of additive mixtures or operating pressure [7][8][9][10][11].…”

Determination of the coefficient of hydraulic friction and factors reducing the value of hydraulic resistance along the length

“…Currently, the Darcy-Weisbach formula is used to determine hydraulic pressure losses in pipes and channels [2]. The main role in the calculation of hydraulic losses is played by the determination of the coefficient of hydraulic friction.…”