Recent Changes - Search:

Surveys and data


Instruments


Support to other department sections


Support Dr. Scient. thesis


Contribution to "Scientific infrastructure"


Obsolete, kept for reference


edit SideBar

Last update: May 12, 2021, at 06:55 AM
Version: pmwiki-2.2.134


    BOLT AIRGUNS    

     Maintenance, spare parts, firing lines, adapters

UNIVERSITY OF BERGEN
Department of Earth Science
 Allé gt. 41, N-5007 Bergen, Norway 
             
0.1   DRAFT - request for comments - 14 February, 2019 OM OM -
VER. STATUS CHANGE DATE BY CKD APPD

H.S.E. RELATED TO AIRGUN USEAGE


May 2014: When providing engineering services to the design of a new Norwegian research vessel that will also be furnished with air compressors for seismic operations, we need to gather information about the type of quality standards (or practice) that are in effect on these areas in the seismic industry:

Compressed air moisture-, particle-, and oil content.

We can ask geophysical contractors, airgun and compressor manufacturers for advise.

Oil content



Air manifold explosion, as described in IAGC, global HSE Forum September 2007: High Potential Incident Injury After Manifold Explosion.
(IAGC = International Association of Geophysical Contractors)
Click to open report.
Click to open IAGC report.

High Pressure Incident 2011, IAGC (also local copy)

Other references


SPARE PARTS FOR BOLT AIRGUNS


Solenoid spare parts


Overview of solenoid spares (by Stig Monsen), with Bolt part numbers given:

Solenoid O-rings - click to enlarge
Solenoid O-rings - click to enlarge

Other spare parts


Bolt part numbers shown.

Bolt mod. 1500 airgun

Bolt mod. 1900 airgun



ADAPTER CABLE FOR BOLT SOLENOIDS


Picture of existing adapter between Bolt Air Gun and firing line. Click to enlarge.

Adapter between Bolt Air Gun and firing line. Click to enlarge.
Adapter between Bolt Air Gun and firing line. Click to enlarge.

Adapter length: 155 cm

Bolt solenoid adapter cable, ship side connector
Bolt solenoid adapter cable, ship side connector.
Bolt solenoid adapter cable, gun side connector
Bolt solenoid adapter cable, gun side connector.

Wiring


  -------------------------------------------------------------
   AGMU-1004-M
  [Old: QXA-4-M]     Description                Solenoid side
  -------------------------------------------------------------
     1  ---------  "Transducer negative"  ------   T(-)
     2  ---------  "Transducer positive"  ------   T(+)
     3  ---------  "Gunfire coil pins"    ------   S:2
     4  ---------  "Gunfire coil pins"    ------   S:1

Link to A-G Geophysical Catalog ---- also local version.

The adapter cable should mate the normal Bolt solenoid connector in one end, and be furnished with a male QXA-4/12M (or equivalent type sold by A-G Geophysical) connector in the other.

Bolt solenoid top view


A-G Geophysical connector mating Bolt solenoid


A-G Geophysical Bolt Air Gun Connector
Model AGS 6204 - Page 32 in A-G catalog

WIRING TYPES AGS 6204


A-G Geophysical connector for firing line


A-G Geophysical Marine Water-Blocked Connector
Model AGMU-1004-M - Page 25 in A-G Geophysical Catalog

AGC Cable


Ref. page 54 in A-G Geophysical Catalog

  • Cable: AGC 9104-6, 4-10-.600
  • AWG: 10
  • No. of conductors: 4
  • Stranding / material: 7x17/32 Tinned Copper Clad Steel
  • O.D. (in/mm): 0.600 / 15.2
  • Max ohms / 1000 ft: 4.1

FIRING LINES


Teledyne - AG Geophysical Products Inc.


Specifications:

  • Airgun firing line, 22 meter long, terminated with these connectors: AGMU-1004-M / AGMU-1004-F
  • AG Geophysical -- Product Selection Guide (PDF)
  • Cable specs:
    • AGC 9104-6, 4-10-.600
    • AWG: 10
    • No. of conductors: 4
    • Stranding / material: 7x17/32 Tinned Copper Clad Steel
    • O.D. (in/mm): 0.600 / 15.2
    • Max ohms / 1000 ft: 4.1

Supplier:

IMPORTANT INFORMATION FROM TELEDYNE MARINE / A-G GEOPHYSICAL


Silicon Spray


As stated in supplier's recommendation, we should use SILICON SPRAY approved for Polyurethane application as lubrication.

Candidates for approval:

Edit - History - Print - Search
Page last modified on June 16, 2019, at 03:50 PM
Electronics workshop
Department of Earth Science - University of Bergen
N O R W A Y