Sentence examples for string drill from inspiring English sources

drill string (drill pipe).

k = E A L, elastic constant of the drill string (drill pipe).

where: PM mobile platform (topdrive); GF drill string (drill pipe) AA bottom hole assembly SG guiding structure of the platform D1′ external diameter of the drill string D1″ external diameter of the bottom hole.

MPM mass of elements on the mobile platform (topdrive); F active force, F = F t); x t)—movement of mobile platform (MP); MAA concentrated mass at the bottom hole assembly level; GF drilling string (drill pipe); y(t)—movement of bottom hole assembly; f elastic deformation due to static loads.

Drilling fluid channel is actually a multi-layer cylindrical waveguide, which consists of drill string drilling fluid, drill string, and annulus drilling fluid.

This section discusses the simulation results and explains the effect of input parameters, including rotational speed of the drill string, drilling fluid and cuttings density, and deviation of the drill string from the annulus center, on precipitation of cutting, pressure drop of the drilling fluid and the stress exerted on the drill string.

You can make a top from just shells and string by drilling holes into the shell but this is uncomfortable and it is easy to break the shell.

Designed software is able to consider both axial tension and stress simultaneously in entire length of drill string, and identifies the allowed drill string stability region in very small n-elements of drill string length.

This stress is a function of two general factors: fluid resistance against drill string movement and the drill string rotational speed.

So one of the best advantages of having a predicted drill string stability region is more appropriate drill string designs and also can significantly reduce the costs of the drilling.

Designed software can present the user a primary draw of the allowed drill string stability region to obtain a more desirable drill string design.