with the instrument installed into a wireline drilling overshot saves time and therefore money by measuring the inclination of the hole
while you are retrieving the core.
very time efficient configuration for this type of surveying is to
simply install the instrument into a spare overshot. Normal drilling
and core retrieval procedures can be performed. When you would like to
perform a survey, simply connect the overshot with the instrument
installed to the overshot already being used to retrieve the core. If
you do not have a spare overshot then let us know and we will provide
instrument can be threaded directly into overshots which have a
1" 16TPI thread and can be used with other overshots that have a
different thread configuration by adding thread adapters. Standard and
custom thread adapters are available.
This method is capable of surveying holes drilled at any angle since standard procedures used in drilling are used to place the survey
train at the survey site.
to provide when requesting a quotation:
available, please includes details about your surveying application so
we can provide a detailed quotation and/or additional information.
Common details to include are:
is the core size(s)?
is the direction (upward, downward, horizontal, etc) of the hole?
is the length of the hole?
the hole water filled?