PMSS™ Portable Modular Source System™ 2 Overview
Success Comes From Being Adaptable
The PMSS™ consists of a suite of standard ISO containers that have been fitted with equipment and service modules that, together, form a fully portable seismic source system.
The system can, typically, be deployed in a 23 x 11 meter footprint and can be fitted to any vessel with enough deck area. The configuration of the standard ISO containers is flexible and can be altered to suite specific vessel deck arrangements and vessel dimensions.
The PMSS™ aims to be as self sufficient as possible but will require some support and services from the host vessel. These typically include access to fuel, electrical power, sea water cooling and potentially hydraulic power supply. The system requires a minimal crew of between 5 and 7 persons.
The three gun string source is deployed over the stern of the vessel and towed approximately 50 meters astern. This arrangement allows for rapid deployment and recovery coupled with very short turning times. This ensures efficient survey operations.
The source system is compact, very safe to recover/deploy and thus is able to acquire data at relatively high speed. The safe handling and inherent robust design allows operations to continue in weather conditions that would stop most other survey operations.
General Operational Parameters
|Array Volume: 2000 cu in|
|Pressure: 2000 psi|
|No of Guns: 20|
|Gun Depth: 5 m|
|No of Strings: 3|
|Shot Intervals: 50 m|
|Shooting Speed: 6.0 knots|
|Gun Array Handling Frame|
|2,000in3 (3 string) Bolt APG Array, Baro flotation
system, integrated rGPS pods
|Umbilical Winch Unit|
|3 winches each holding Air Gun Umbilicals
and air distribution panels
|Pressure Control Unit|
|400 litre capacity, 2 Fischer valves|
|Operational workshop for the maintenance of
the source system
|Storage for equipment to maintain the source
system and switch panels
WGP PRM PMSS™ Valhall for BP