geolograph

geolograph

[jē′äl·ə‚graph]
(engineering)
A device that records the penetration rate of a bit during the drilling of a well.
References in periodicals archive ?
En el pasado, para medir la tasa de penetracion se utilizaba un equipo denominado geolograph, un registrador automatico de la velocidad de penetracion que carecia de un formato grafico.
BHTS reported revenues of approximately $10 million for fiscal 1994 and will be combined with M-I's Swaco Geolograph unit.