External Hollow Antenna

摘要

A beacon assembly located at a downhole end of a drill string proximate a boring tool. The beacon assembly transmits data to an above-ground receiver. The beacon has a housing with a housing wall located between its sensors, such as gradiometers, accelerometers, and other orientation sensors, and an antenna assembly. The antenna assembly has a protective covering made of electromagnetically transparent material.

主权项

1. A beacon assembly for attachment to a downhole end of a drill string, the beacon assembly comprising:
a housing wall; a sensor located within the housing wall; a coil electronically connected to the at least one sensor, the coil disposed outside of and about the housing wall.