Offshore Investigation and Testing

Offshore Investigation and Testing

Understanding Ground Conditions Beneath the Water

Offshore and coastal infrastructure projects require reliable information on seabed and subsurface ground conditions. Marine site investigation and advanced geotechnical testing provide critical data to support offshore foundation and subsea infrastructure design.

 

Geonamics (S) Pte Ltd is a SAC-SINGLAS accredited provider of marine geotechnical solutions across Southeast Asia. With decades of field experience and a fleet of more than 10 purpose-built jack-up barges operating at water depths of approximately 40 m, we provide nearshore, offshore and deepwater site investigation, advanced in-situ testing and real-time data acquisition. Our experience includes high-traffic marine corridors such as Temasek Fairway, Sinki Fairway, Keppel Fairway, ALVCC and Raffles Shoal, supporting coastal reclamation, port development, submarine cable landings, and dike and foundation design.

Marine Site Investigation

Investigating Conditions Beneath the Seabed

Our marine soil investigation capabilities support offshore and coastal projects through drilling, sampling and rock coring.

Borehole Drilling
Borehole drilling from jack-up platforms to investigate subsurface conditions up to 40 m below the seabed.
Soil Sampling
Sampling using thin-walled tubes in accordance with ASTM D1587 and split-spoon sampling in accordance with ASTM D1586.
Rock Coring
Rock coring and recovery analysis in accordance with ASTM D2113 to investigate underlying rock conditions.
Our Equipment

Purpose-Built Marine Investigation Equipment

Geonamics operates purpose-built marine equipment designed for offshore and nearshore investigation works.

Marine Drill Rigs

Hydraulic rotary and percussion rigs customised for efficient marine drilling and site investigation.

Self-Elevating Platforms

Self-elevating platforms equipped with geotechnical drill rigs and CPT pushing systems.

Real-Time Data Logging

Data logging systems provide real-time acquisition of depth, torque, thrust and CPT parameters.

Seismic & Geophysical Testing

Characterising Subsurface Conditions

Our seismic and geophysical testing capabilities provide additional information on subsurface ground conditions.

Crosshole Seismic Tomography
Crosshole Seismic Tomography (CHT) for subsurface seismic investigation and profiling.
Seismic CPT
Seismic Cone Penetration Testing (SCPT) for shear wave velocity profiling and subsurface characterisation.
Marine MASW & Resistivity
Marine MASW and resistivity profiling using TL-ERT for subsurface investigation and characterisation.
In-Situ Testing

Measuring Ground Behaviour In-Situ

Geonamics provides a range of in-situ testing methods to obtain geotechnical parameters directly from the ground.

Standard Penetration Test
Standard Penetration Testing (SPT-N) for in-situ soil investigation.
Cone Penetration Test
CPTu with pore pressure measurement for continuous subsurface profiling.
Pressuremeter Test
Pressuremeter Testing (PMT) for in-situ ground assessment.
Vane Shear Test
Vane Shear Testing (VST) for in-situ assessment of soil strength.
Piezocone Dissipation Test
Piezocone dissipation testing to assess pore pressure response.
Advanced Geotechnical Testing

Advanced Testing for Offshore Infrastructure

Geonamics’ advanced geotechnical testing systems provide critical geotechnical parameters for the design of offshore foundations and subsea infrastructure, including projects involving offshore wind, oil and gas, and cable laying.

Dynamic Triaxial Testing System
Advanced testing of soil strength and deformation behaviour under dynamic loading conditions.
Dynamic Cyclic Simple Shear System
Testing of soil response and deformation behaviour under cyclic loading conditions.
Resonant Column System
Measurement of soil dynamic properties, including shear wave velocity and shear modulus.
Ring Shear System
Testing of soil shear strength and residual strength under large shear displacement.
Bender Element System
Measurement of shear wave velocity and small-strain stiffness of soil specimens.
Constant Rate of Strain System
Testing of soil consolidation behaviour under controlled constant strain rates.
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Dynamic Triaxial Testing System
Advanced testing of soil strength and deformation behaviour under dynamic loading conditions.
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Dynamic Cyclic Simple Shear System
Testing of soil response and deformation behaviour under cyclic loading conditions.
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Resonant Column System
Measurement of soil dynamic properties, including shear wave velocity and shear modulus.
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Ring Shear System
Testing of soil shear strength and residual strength under large shear displacement.
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Bender Element System
Measurement of shear wave velocity and small-strain stiffness of soil specimens.
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Constant Rate of Strain System
Testing of soil consolidation behaviour under controlled constant strain rates.
Integrated Data & Quality Control

Real-Time Data for Better Visibility

All investigation and testing datasets are maintained on RTGeomonitor. our secure cloud platform. enabling global authorised access for project teams, clients and stakeholders.

Our integrated data management system supports quality-control review, ensuring data integrity, traceability and confidence throughout the project life cycle.

Global Authorised Access
Secure, role-based access for project teams anywhere in the world.
Centralised Project Data
All investigation and testing data in one integrated platform
Continuous Quality Review
Built-in QC workflows ensure data integrity and traceability

Get In Touch

Share your project requirements and investigation needs with us. Our team will get in touch to discuss how we can support your offshore site investigation and testing requirements.