2D and 3D Seismic Surveys for MMS Permitting

FGSI performs a wide range of MMS permitting studies including the acquisition of high-resolution 2D and 3D geophysical data in addition to sub-bottom profiler, side-scan sonar, magnetometer, and echo sounder data. Programs can be customized with varying streamer and gun configurations to meet individual project needs in both deepwater and shelf areas. Routine studies include well-site surveys for hazard assessment and archeological studies.

2D and 3D Seismic Surveys for Siting and Design

Siting and design studies often require the acquisition of extensive high-resolution data to investigate shallow geologic conditions in areas slated for platforms, flow lines and subsea installations. Siting surveys are generally more comprehensive and detailed than permitting studies and include acquisition of echo sounder, sub-bottom profiler, magnetometer, and side-scan sonar data over a detailed survey grid. Deeptow and high-resolution 3D tools are applicable for siting and design studies in deepwater areas

Shelf Pipeline Route Surveys

 Conventional shelf pipeline route surveys must efficiently locate a cost effective route solution and map all existing infrastructure and potential hazards along the route and insure unobstructed access for safe operation of construction vessels. Route surveys typically employ side scan sonar, single- and multi-beam echo sounder, sub-bottom profiler, magnetometers and seabed cores to identify potential seabed features, obstructions and to confirm soil conditions for pipeline crossings, potential spanning and burial considerations.

• On Bottom Stability Assessment

• Out-Of-Straightness (OOS) Analyses

• Upheaval Buckling and Rock Dump Optimisation

• Span Prediction

• Expansion Analysis

• Plough Pick-Up Analysis

• On-Bottom Roughness Analysis

• Pre-Sweeping and Trenching Analysis

Deepwater Pipeline Route and Site Surveys

Locating safe and economical routes for deepwater flow lines and export pipelines is an important factor in the success of any deepwater development. As water depths increase and subsea completions become routine, there is an increasing need for rapid, cost-competitive methods of obtaining high-quality routing and site information. The combination of Fugro's geophysical, geotechnical, environmental, and survey services under a single integrated project management team allows us to offer a cost-effective routing study and insure that all the necessary data are acquired in a timely and coordinated way.

Professional services in support of all marine pipeline route studies include those listed above and:

• Environmental Data Review

• Autonomous Underwater Vehicle, Deeptow and multi-beam bathymetry surveys

• Onboard interpretation and selection of geotechnical test locations.

• Piston cores for geotechnical analysis.

• In-situ PCPT and vane shear measurements

• Pipeline burial assessment

• Integrated reporting

• Route suitability assessment

• Construction support services

Special Purpose Surveys

FGSI's wide range of geophysical tools and flexible vessel configurations are available for special applications and emergency response. Typical applications include:

• Precision multi-beam bathymetry

• Debris clearance studies

• Shipwreck and aircraft searches

• Platform and pipeline damage assessments

• Academic research

Shallow Exploration Seismic

FGSI's high-resolution 2D and 3D data acquisition tools are ideally suited for shallow target exploration and rejuvenation of existing fields to 3+ seconds penetration and up to 10 times the resolution of conventional exploration seismic. High-resolution data are acquired by the same data recording and positioning methods as conventional seismic.