5. Trimble Man Pack - 4700 GPS
• GPS used by the Survey Crew
for locating the Source & Receiver
Points of the Seismic lines, carried
on their shoulders
External Batteries and Receiver
• Its is connected with two external
batteries and a receiver which receives
the signal from the satellite.
6. • Trimble Survey Controller is
connected with the GPS, it has
the designed coordinates of each
source & receiver points, given
by the Operating Company
Trimble Survey Controller
• When it gets the coordinates from the satellite it compares
the designed and actual coordinates and gives the original
values
7. Shot Points Receiver Points
• After locating the points, the crew mark the places of source
and receiver points finally marking a seismic line
Source Points with red paint Receiver Points with white paint
8. Drilling Jackhammer
• Drilling Crew uses Jackhammers
for shallow holes
Man Portable Drilling Rig
• For deep holes, Man Portable
Drilling Rigs are used
9. Dynamite Stick for Deep Shots
• After drilling shot holes dynamite is
loaded in them, using dynamite sticks
Detonator
• Detonators are placed in the dynamite
stick, used to initiate the blasting of
dynamite
10. • Lowering of Charge in a Drilled Hole
with detonator in them
• Hole is loaded and filled with Sand
• Loading is done and place is marked
11. Other then dynamite Vibroseis is also a source in
Seismic Acquisition Surveys
12. Geophone Stings
Takeout Point of a Takeout Cable
• This crew first of all layout the
Geophones on the seismic lines
as spread.
• These geophones are connected to each
other by the Takeout Cable
13. Station Unit Box
• Takeout cable is then connected to
Station Unit Box
Crossing Station Unit Box
• All the Station Unit Box is further
connected with one Crossing Station
Unit Box (of an array)
• Then yellow cable called Jumper Cable
is finally connected to Recording Truck
through which all the information goes
into it
14. Color Line Monitor
Recorder
Tape Driver
• Monitor on which the Observer control
all the activities on a seismic line
• The recorder which records all the data
coming through cables
• The tape driver records all the data
on the magnetic tapes or cartridges
15. Camera
Seismic Source Synchronizer
• The thermal plotter used to make a hard
copy of the recorded data
• Device which synchronizes the blaster.
Before shooting, recorder presses ARM
button to charge the detonators, at the
same time the blaster operator presses
the ARM button in the blaster
• Then recorder presses GO button to
blast the dynamite
16. Blaster
• Bag carried by the shooting crew is called
The Blaster, it works in coordination with
the Seismic Source Synchronizer
• “Blast view” on seismic
line
17. • A recorded result of shot point after the blast
18. Camera For LVL
Blaster used For LVL
• Camera used for Low Velocity Layer
showing the status of spread, it has
built in floppy drive, printer and hard
disk
• Refraction blaster which is connected
with the camera for blasting the
dynamite
19. LVL Spread
• A view of a spread for the Refraction
Survey
• Recorded result of an LVL shot
20. • Safety Caps
• Foot Wears
• Coveralls
• Loose Clothing
• Water Bottles
• Fire Extinguishers, Fire Alarms, Smoke Alarms
• Sign Boards
• The job of this crew is to provide the following things
to all the crews
21. • After all the shots are recorded every thing is wounded
• The data is send to the Operator Company
• The place is restored by the Green Team and inspected by
the Client Company
• Then Operator Company sends data to DGPC
