E21B 47/026 - Definition fr

Definition statement

This subclass covers:

Processes or apparatus for measuring the inclination (i.e. dip) or orientation (i.e. strike) of a drilled stratum, e.g. by using a specially adapted compass (e.g. a Brunton compass).

Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus for obtaining oriented cores

E21B 25/16

Formation testing

E21B 49/00