Exploration drilling Serbian style - Atlas Copco

Stanimir “Steve” Lazarevic, founder and
president of S&V Drilling Mine Services,
says:”Our policy is to use just one supplier.”
The Mustang uses HO standard drills,
98 mm in diameter with the triple core
barre l system HO3. It takes about 20 days
to extract 1 000 m of core barrels and core
recovery is 95–100 percent. About 335 rods
are used for each 1 000 meter hole.
When the holes are done, they are
filled with concrete as a safety precaution
to stabiliz e the ground in the event of an
underground mine being established in the
area at a future date.
Environmental care
All possible environmental precautions are
taken on the site. For example, pits are dug
in the ground and lined with tarpaulins to
collect the water that is used in the drilling
process. This water is then pumped into a
tank truck for proper disposal. “I remember
the days when machinery of all kinds would
spit out oil everywhere. That’s not happening
here,” Lazarevic says.
Fingertip control
Sitting at the controls of the Mustang
13-F1, operator Marco Zdravkovic says:
“Everythin g in this rig is at my fingertips.
The hydraulic foot clamps are also a nice
touch as before they were mechanical and
people could get injured.
“But here I have simple guages that tell
me about pilot pressures, torque, lifting, top
pressures, and rpms. And the whole thing
swivels so I can put it where I need it. It’s
simple. That’s what I like about it.”
With increased demand for its services,
S&V now sees good potential for further
expansion. Lazarevic concludes: “We need
to meet the increased demand for our
service s so we expect to be working full
speed ahead with two new Atlas Copco rigs
later during 2012.”
Footnote: Jadarite is a white silicate mineral
which was discovered in 2006 in the Jadar River
Valley. The mineral received widespread media
attention when it became known that the chemica l
formula of jaderite is very close to the formula
invented for the fictional substance “kryptonite” in
the 2006 Superman movie “Superman Returns”.
Atlas Copco’s Mustang 13 series is the largest
member of the Mustang geotechnical drilling
family. It has a feed and lifting capacity
of 130 kN (29.2 k lbf) and is equipped with a
152 mm rotation unit.
The modular concept allows for a wide
selection of options including a variety of
rod holders, winches, pumps, jet grouting
kits etc., allowing each rig to be designed
specifically for the application.
Equipped with the latest Deutz silenced
power unit (EU3), the rig’s centered and userfriendly
control panel enables it to be easily
operated by one person.
28 Mining & Construction – 1 / 2012