BOREHOLE DATA TRANSMISSION SYSTEM

摘要

The particular embodiment described herein as illustrative of one form of the invention utilizes an instrument system for detecting the angular position and directional orientation of a housing within a wellbore and for generating signals indicative of such information. These signals are stored in binary form and then coded for transmission to the surface over a conductor which also carries the power supply for the system. At the surface the signals are decoded to provide data indicative of downhole information.