Using only the traditional logging while drilling is difficult. Such logs do not provide azimuthal direction of the measurements in the well. The result is that changes in lithology can be interpreted as drilling up the stratification or down the stratification. Azimuthal logging can help determining what sector of azimuth (top, bottom, left or right) starts changing lithology of rocks. That information can show the direction of the well’s trajectory in the bed.
At the intersection of the well and strata down the stratification, the bottom sensor hits a interlayer first, then the right and left side sensors and the last of all the top sensor. When crossing the interlayer up the stratification, the order of the sensors detection will be reversed.
With more azimuthal sensors, recorded data will be consistent around the borehole. If the recorded logs (with a gradient color fill) are presented on a 2D diagram, resulting image is called the Well Image.
An additional module «QI dip» can calculate the dip angles in two two different ways:
The user can perform the calculation separately for each of the the methods, or using both methods simultaneously.