This sparked an interesting question…. If this deep hole deviated so much, what about all the other presumed “straight” holes?
In 1989, after several years’ research, Downhole Surveys was formed, starting in Kalgoorlie, Western Australia with a single operator.
A Subaru Brumby was fitted with a small 12v winch and travelled the Goldfields region, servicing exploration sites as far north as Meekathara to south of Norseman, surveying mostly open RC drilled holes with a film based multishot camera. Developing the film was conducted in a portable dark room. Once developed, the film was magnified and each 2 minute / 10m interval reading was manually input into a computer where the bore trajectory was computed.
Since our humble beginnings, Downhole Surveys has gone on to become one of the largest directional surveying companies in Australia, and are a world leader in directional surveying technology and techniques. Our technical knowledge and experience, paired with extensive research and development, has led Downhole Surveys to introduce over 15 different surveying products to the Australian mining industry.
Downhole Surveys – Absolute Precision