Hydrographic Surveying Services

Project Experience

Rig Moves

  • West Atlas wildcat rig move in the Heron-2 field
  • Stena Clyde wild cat move re-entry in the Rosella-1 field
  • Atwood Eagle high accuracy Thebe-1 rig in the Stybarrow development
  • Atwood Eagle high accuracy acoustic rig move in the Stag field

Geophysical

  • Salsa-1 site survey in the NW Shelf
  • Geophysical site survey of the Devil Creek Development project in the NW Shelf
  • Side scan sonar survey inspection for the Timor Sea pipeline survey project
  • Geophysical survey and vibrocoring operation in the NW Shelf

Additional Services

  • ROV survey of the Simpson pipeline inspection on the NW Shelf
  • Environmental and bathymetry services for the ROV MBES environmental survey on Scott Reef
  • LBL acoustic catenary survey on the NW Shelf
  • Observation class ROV drill support on Cliffhead (WA)
The addition of Tri-Surv Geomatics to the Neptune Marine Services Group enabled Neptune to offer a diverse array of offshore marine survey and geotechnical services to clients in the oil and gas industry. Employing state of the art technology and equipment our hydrographic surveying services are accurate, efficient and rapidly delivered. Tri-Surv has extensive experience providing geophysical site surveys, pipeline route surveys and jack-up and semi-submersible positioning services to oil and gas operators.

The deepwater division specialises in providing surface and integrated subsea acoustic positioning services for survey and construction projects regardless of the water depth. Tri-Surv has attained DNV accreditation for their quality management system (ISO 9000:2001) and their safety management system (AS/NZS 4801:2001) and has a demonstrated commitment to quality and service. Services include:

Construction Support Services

  • LBL and USBL integrated positioning services for subsea survey and construction
  • LBL array planning and positioning analysis
  • Underwater data telemetry systems

Rig Positioning

  • Jack-up positioning and drill floor heightening
  • Precision positioning along side structures
  • Vertical seismic profiles (VSP’s)
  • Acoustic subsea positioning
  • Semi-sub anchor planning & positioning
  • In-field moves
  • Catenary calculations

Earth Sciences

  • Analogue site surveys
  • Pipeline route and inspection surveys
  • Environmental surveys