CAPABILITIES...



Geophysical/ 2D High Resolution Seismic Surveys

 

Dedicated site survey vessels equipped with high resolution multi-channel geophysical acquisition systems are rapidly mobilised and operated to check for the presence of shallow gas deposits and other hazards at proposed drilling sites. High quality mapping and interpretation services (including 3D) are available. Brone undertakes geophysical surveys for pipeline route, cable route and drilling locations. Information on the sediment layers and soil stratigraphy within the seabed is acquired by using equipment with different penetration levels and energy outputs depending on client specifications and project requirements. Also, equipment can be deployed to identify debris, unconformities, salt diapers, stratigraphic faults, subsea channels, existing man made structures and other possible hazards to field development activities


GEOTECHNICAL SURVEYS

Dedicated geotechnical vessels equipped for the recovery of seafloor soil samples, near seafloor water samples, piston cores and borehole samples.  Engaging water sampler, box corer, grab samplers and piston corers, the Brone Investigator is equipped to work from creeks, shoreline all the way to 3000m of water. Heavy duty oceanographic and deep tow winches are permanently mobilised on the vessel, making it a quick solution for all offshore sampling projects. Soil investigations are often required by clients in the oil, gas and construction industries to solve civil engineering and offshore construction problems as soil formation is considered in engineering designs. Brone undertakes geotechnical investigations on soil types, soil classification, shear strength, porosity, permeability and engineering properties of soils  to determine their strength and foundation properties. Equipment used include gravity corers, jumbo piston corers, drilling rigs, CPT and PCPT equipment.

Positioning & Navigtion

Personnel, positioning equipment, navigation computers and advanced positioning software are available to position drilling rigs precisely on to new and existing drilling locations. In addition, tracking systems have been developed for the positioning of anchor handling tugs and other ancillary vessels. Brone also provides assistance with the installation of platforms, jacket sections and templates in offshore hydrocarbon provinces. Surface and sub surface positioning data is integrated to generate graphics showing the position, yaw, pitch, roll and depth of the structure being lowered and leveling information when it is on the seabed.

Hydrographic Surveys

State-of-the-art bathymetry and seabed surveys are executed for clients in the oil, gas, marine construction, naval and ports authority industries including pre-dredge and post-dredge surveys, buoy mooring and channel surveys. We employ swathe and mono-beam echo sounder suites in addition to sidescan sonar solutions to difficult hydrographic challenges. Hydrographic solutions include tidal monitoring, current profiling, meteorological analysis, siltation studies, seabed classification etc.

Construction Support

Seabed and substrata studies are vital to the planning, design and construction phases of any offshore development. Vessels, personnel and equipment are provided to locate any potential engineering hazard such as structural faults, gas pockets, reefs and man-made obstructions. Also, in conducting pipe-lay construction projects, survey support including route reconnaissance studies, pipe-lay positioning, pipeline route surveys, surveys during pipe-lay operations and pipeline inspections can be provided. Detailed studies using terrestrial and satellite positioning, echo-sounders, sidescan sonars, sub-bottom profilers and magnetometer equipment, as well as soil sampling can also be undertaken prior to pipe-lay operations. These surveys chart water depths and locate suitable sea floor characteristics for optimum pipeline route selection.