Offshore Geotechnics


Horizon performs detailed offshore geotechnical investigations to support the design, engineering and installation of the following offshore structures:

    Foundations for piled jackets, gravity based structures and FPSO
    Jack-up rigs
    Jackets and platforms
    PLEM and SPMs
    Wind Turbines
    Pipeline and cable routes
    Suction and drag anchors

We have a fleet of offshore drilling rigs which can be operated from our dedicated drill ships and can also be mobilised onto vessels of opportunity or client supplied vessels allowing worldwide operations.

All offshore geotechnical investigations are conducted from our heave compensated drilling rigs with a wire line system including downhole Wison-APB cone penetration testing (PCPT) and in-situ vane testing equipment. Mud mix and transfer systems control borehole stability while fully equipped offshore soil testing laboratories provide in-field analysis.

Our offshore geotechnical spreads are equipped for:

    Undisturbed and disturbed soil sampling
    Rock coring
    Downhole PCPT testing
    Seismic CPTs
    Downhole vane testing
    P-S logging
    In-field soil laboratory testing
    200kN seabed CPT system
    40kN Roson seabed CPT system

Horizon’s offshore geotechnical capabilities are supported by our onshore team of experienced geologists and geotechnical engineers whom utilise the data gathered offshore and in the laboratory for detailed interpretation of the foundation design and engineering analysis.

We review the information gathered from offshore geotechnical investigations with desktop studies and geophysical data to supply an integrated report to the client.