AIRGUNS FOR GEOPHYSICAL EXPLORATION Firing lines, pigtails, airgun maintenance				UNIVERSITY OF BERGEN Department of Earth Science Allé gt. 41, N-5007 Bergen, Norway

0.1	DRAFT - request for comments	-	23 November, 2017	OM	OM	-
VER.	STATUS	CHANGE	DATE	BY	CKD	APPD

LIST OF SUPPLIERS

Airguns, spare parts for these:	Teledyne Marine Bolt airguns
Pigtails (short 1.5 m adapter cable between solenoid valve and firing line	Teledyne Marine AG Geophysical
Firing lines	Teledyne Marine AG Geophysical

"PIGTAIL" FOR BOLT SOLENOID

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 length: 150 cm

Wiring diagram

Bolt solenoid top view

Bolt solenoid adapter cable, gun side connector.

Bolt solenoid adapter cable, ship side connector. Link to AGMU connector data sheet.

  -------------------------------------------------------------
                  W I R I N G   L I S T
   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

There are two product lines of Marine Inline Connectors - AGM and AGMU.

AGM Specifications	AGMU Specifications
AGM Key Features: Standard submersible connectors with 2 or 4 pins. Water blocked versions available Benefits: Survives high shock environments, such as those found in seismic surveys Excellent mechanical survivability in extreme environments	AGMU Key Features: Ultimate submersible connectors with 2 or 4 pins. Water blocked versions available Benefits: Survives high shock environments, such as those found in seismic surveys Excellent mechanical survivability in extreme environments

Something must be wrong. The only difference is the word "Ultimate" ... otherwise, list of specifications are identical.

Link to Teledyne Marine AG Geophysical marine connectors overview

Teledyne Marine AG Geophysical connector matching Bolt solenoid. There are two options:

Model AGS 6204 Page 37 in Teledyne Marine Ag Geophysical AGS catalog Heavy Duty. Recommended for all Bolt Air Guns.	Model AGS 6254 Page 38 in Teledyne Marine Ag Geophysical AGS catalog Ruggedized for large airguns and extended service life.
AGS 6204	AGS 6254

WIRING TYPES AGS 6204	WIRING TYPES AGS 6254

Pigtail Wiring type A is used by us

WE USE WIRING TYPE A

  -------------------------------------------------------------
                  W I R I N G   L I S T
   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

FIRING LINES

Connectors

Teledyne Marine AG Geophysical connector for firing line,

FACING AIRGUNS Model AGMU 1004 F - Page 17 in AGMU catalog	FACING VESSEL Model AGMU 1004 M - Page 17 in AGMU catalog

Firing line cable

Ref. page 63 in Teledyne Marine AG Geophysical catalog

Two choices:
Catalog ID	AWG	# Conductors	Twist	Stranding Material	Outer dia. [IN/MM]
AGC 9104-6, 4-10-.600	10	4	Twisted Quad	7x17/32 Tinned Copper Clad Steel	0.600 / 15.2
AGC 9114-5, 4-11-.500	11	4	Twisted Quad	7x7/30 Tinned Copper Clad Steel	0.500 / 12.7

Page 63 in Teledyne Marine AG Geophysical catalog

Important information from Teledyne Marine AG Geophysical

Silicon Spray

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

Candidates for approval:

SPARE PARTS FOR BOLT AIRGUNS

Solenoid

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

Solenoid O-rings - click to enlarge

Other spare parts

Bolt part numbers shown.

Bolt mod. 1500 airgun

Bolt mod. 1900 airgun

CONTENTS