® FireFly Field Operations Quick Reference Guide Release 2.0 1018-010063 Rev.
ION Geophysical Corporation 12300 Parc Crest Drive Stafford, Texas 77477-2416 USA Tel +1.281.552.3002 Fax +1.281.879.3626 www.iongeo.com Copyright © 2008 ION Geophysical Corporation. All rights reserved.
FireFly Field Operations Quick Reference Guide 3
Contents Equipment Layout...........................................................................................................................................................................6 Changing the External Battery ........................................................................................................................................................9 Field Shooting for Dynamite.......................................................................................................
FireFly Field Operations Quick Reference Guide 5
Equipment Layout The basic workflow for equipment layout is: • Set up the equipment at the equipment drop point • Navigate from station to station, with an equipment drop point at specified intervals • Navigate from station to station Equipment A set of FireFly station equipment consists of: • Field Station Unit (FSU-2E) • VectorSeis sensor (SVSM) • External Battery Note Do not connect the equipment until you are at the station.
Figure 1-1. Equipment Layout Example TASK: Lay Out Equipment 1. Locate station equipment. Use NavTool to locate the equipment drop point and move equipment to the closest station location. 2. Unload equipment. • Unload the first set of the FireFly equipment. • Attach the antenna to the antenna mount. • Plug the VectorSeis cable into the FSU-2E. • Plug the external battery into the FSU-2E as shown and swipe the magnet over the FSU-2E power symbol to turn on the FSU-2E.
Figure 1-2. FSU-2E connections To prevent damage to the FSU-2E, you must connect the VectorSeis sensor to the FSU-2E before connecting the external battery to the FSU-2E. Caution Figure 1-3.
3. Place FSU-2E and VectorSeis sensor. • Using NavTool, determine the proper location for the VectorSeis sensor. • Auger a hole for the VectorSeis sensor and place the sensor securely in the hole. • Using NavTool, perform these steps: a. Select the battery type that you have connected to the FSU-2E. b. Select the sensor orientation. 4. Take alignment readings. • Keeping the NavTool attached to the Alignment pole, place the Alignment pole over the VectorSeis sensor to get a reading. Figure 1-4.
a. Select the FSU-2E that you are connecting to. b. After the NavTool runs FSU-2E tests, transmit the data to the FSU-2E. c. Take a GPS and Compass reading with NavTool and transmit the readings to FSU-2E. 5. Move to the next station. • Pick up equipment and drill and move to the next station. • Navigate to the next location using NavTool. 6. Unload equipment. • Unload the next set of FireFly equipment (FSU-2E, VectorSeis unit, and external battery) and place the units at the station location.
Changing the External Battery You can change out an external battery in the field. Caution The batteries should be replaced while the CRUs are operational and transmitting to the FSU-2Es. If the CRUs are not running, the FSU-2Es may lose the timing reference and waste battery power. Equipment Uses the following equipment • Charged external battery and cable • NavTool • Magnet 1. Navigate to station location where the battery needs to be changed. 2. Unplug the external battery from the FSU-2E. 3.
Figure 1-5.
Field Shooting for Dynamite Crew and Equipment A crew of two: • Shooter • Helper The following FireFly equipment is used: • • • • • Pelton Shot Pro® II firing pack (includes all Pelton equipment) digital compass mounted to firing pack NavTool Radio Backpack with firing line and uphole phone The total number of shooting crews will vary depending on the daily production targets, resources and equipment.
Figure 1-6. Pelton Shot Pro 1. Navigate to the source position using NavTool and take a GPS reading (S & H1). 2. Prepare for shooting (S & H1). • (H1 only) Connect the firing line to the cap lead at the shot hole. • Place the uphole geophone beside the shooting position so that the uphole time of the shot can be measured.
Figure 1-7. Shot Pro II Firing Buttons Warning At this point, the shooter has control over the shot detonating. If the area around the shot hole is not clear, the shooter can release the buttons to abort the shot. 4. Take the Shot (S). • When the FIRE command is received and the shot is detonated, release the charge buttons. • Select the shot status (good, misfire, or blow out) on the NavTool before moving to the next shot point. • If the shot was a misfire, retry the shot.
Equipment Pickup The basic workflow for equipment pickup is: • • • • • Navigate to the first station Verify the equipment Pick up the equipment Navigate to the next station Package equipment at the equipment pickup point for pickup Equipment A set of FireFly station equipment consists of: • Field Station Unit (FSU-2E) • VectorSeis sensor (SVSM) • External Battery TASK: Pick Up Equipment 1. Navigate to first station. 2. Pick up FSU-2E, SVSM, and battery.
3. Pick up the equipment. • • • • Retrieve VectorSeis sensor, using extraction tool if necessary. Disconnect the external battery from the FSU-2E. Disconnect the VectorSeis sensor from the FSU-2E. Gather the FSU-2E, VectorSeis sensor, and external battery. Caution To prevent potential problems, disconnect the battery from the FSU-2E before disconnecting the VectorSeis Sensor from the FSU-2E. 4. Navigate to next position and repeat step 2 and 3. 5. Move to the last station.
