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...due to right-hand rotation of the bit and drill string and is affected by inclination angle, rotary speed, weight on the bit, formation [[dip]] and strike, and b ...d” is shown in [[:file:wellbore-trajectory_fig3.png|Figure 3]]. A borehole inclination of at least 15° is desirable since it is harder to maintain directional co

...lling parameters, Rate of penetration (ROP), Weight on bit (WOB), Near-bit inclination (NBI), Gamma Ray (GR) and few other parameters. The sonde GR instrument is ...g the vertical section, the drilling angle will experience changes in both inclination and azimuth. This happens due to the heterogeneous nature of the reservoir

* α = inclination angle, in degrees from the vertical, from the survey ...r other depth of interest on the well log may require interpolation of the inclination and bearing angles between survey points. The simplest approach is to inter

...tive to north, its rotation relative to the high side of the hole, and the inclination of the tool axis from vertical. Such navigation data are produced from the ...minimum caliper values. On the right-hand side is a representation of the inclination angle and direction of the tool, which will usually be similar to the devia

...e the opposite [north and south would reverse south of the equator and the inclination angles (''i'') would be negative].

...h latitudes, most techniques are prone to failure for similar reasons: the inclination of the ambient earth's field makes an accurate measurement of [[azimuth]] d

...ing sand on the down-wind (lee side).the up-wind face clearly has a gentle inclination while the down- wind face has a steeper slope. sand added to this steeper s