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→Track 1: Rate of Penetration (ROP)
This track gives a relative indication of rock strength and [[porosity]]. Track 1 includes the following information:
This track gives a relative indication of rock strength and [[porosity]]. Track 1 includes the following information:
* ROP and normalized ROP (NROP) (see chapter on “Rate of Penetration”)
* ROP and normalized ROP (NROP) (see chapter on [[Rate of penetration]])
* Bit number, type, and diameter
* Bit number, type, and diameter
* Number and size of jets
* Number and size of jets