Reflex EZ-TRAC User Manual

MANUAL – REFLEX EZ-TRAC™ | 8
2 General
This chapter provides an overall description of REFLEX EZ-TRAC™.
2.1 REFLEX EZ-TRAC
TM
at a glance
REFLEX EZ-TRAC™ is an accurate and reliable instrument for
surveying of boreholes in all directions in non-magnetic environments.
Figure 1 REFLEX EZ-TRAC™
2.1.1 Survey types
REFLEX EZ-TRAC™ is a multifunctional surveying instrument, with
single shot, multi shot and orientation capabilities.
Single shot survey A single shot survey is carried out to determine the azimuth and the
dip at a certain point inside a borehole.
Multi shot survey A multi shot survey is used to determine the azimuth, dip and the
regional and local coordinates along a borehole path.
Orientation survey An orientation survey is carried out to determine the orientation or
rotation (tool face) of a downhole object.
REFLEX EZ-TRAC™ is
capable of performing orientation surveys in boreholes of all angles,
including vertical.
2.1.2 Magnetic and gravimetric
REFLEX EZ-TRAC™ provides survey data based on magnetic and
gravimetric measurements.
Magnetometers Three fluxgate magnetometers aligned in orthogonal directions
measure the Earth’s magnetic field strength and dip. The
magnetometers provide the horizontal component - the azimuth - and
the magnetic tool face.
Accelerometers Three accelerometers aligned in orthogonal directions provide the
vertical component - the dip - and the gravity tool face. The
accelerometer readings are also used to compensate for the rotation
of the instrument as it moves in the hole.
2.1.3 Survey accuracy
REFLEX EZ-TRAC™ is designed to provide accurate and reliable
survey data. However, the survey accuracy depends on how the
instrument is operated.
Magnetism
REFLEX EZ-TRAC™ is a magnetic instrument. Any interference from
man-made or natural magnetism will disturb the magnetometers,
which will result in incorrect measurements.
Station depth The exact depth of a survey station is not critical for
REFLEX EZ-TRAC™, but the more precisely the instrument is
positioned at the survey station the more accurate the survey.

Reflex EZ-TRAC Specifications

General

Brand	Reflex
Model	EZ-TRAC
Category	Measuring Instruments
Language	English