Site Investigations

Site Investigations are a fundamental part of any Front End Engineering Design (FEED) phase. In order to design and engineer onshore and offshore structures such as platforms and jackets, subsea wellheads, manifolds, pipelines and umbilicals associated with oil and gas production complete seabed and sub seafloor site investigations are required. A key aspect of site investigations is the identification of sub-surface hazards such as shallow gas, buried features such as UXO and unstable sediments.

Our consultants are qualified surveyors, geologists, geophysicists or geotechnicians with a wealth of experience acting as client representatives on site to supervise and provide quality control services. They ensure that vessels and equipment are fit for purpose and comply with international regulations for safety of life at sea (SOLAS). They can witness vessel trials as well as equipment tests and calibrations before commencing work. 

We have extensive experience in topographic as well as seabed bathymetry surveys, debris clearance, seafloor mapping and wreck searches using side scan sonar, sub bottom profilers, conventional hull mounted and towed multibeam systems, as well as autonomous under water vehicles (AUV). We specialise in digital multichannel 2D and 3D High Resolution site surveys for drilling hazard analysis as well as shallow seismic reflection and refraction surveys for pipeline, umbilical and cable route surveys.

Geotechnical investigations are an essential part of the engineering design process. Our consultants can advise on all techniques for obtaining samples and measurements such as sediment sampling, vibrocoring or piston coring to deep rotary coring of bore holes and cone penetrometer testing (CPT or PCPT) to assess seabed stability. We provide full geotechnical QC of acquisition and testing but can also provide soil mechanics analysis such as burial assessments (BAS) for cable routes and foundation studies for piling operations.

Services:

  • Survey and Project Management
  • Field Supervision and data QC
  • Geohazard (Shallow Gas) interpretation
  • Foundation Design Studies
  • Burial Assessment Studies
  • Cable Route Engineering Design
  • Spudcan Analysis
  • Reporting

Explosives Detection and Removal 

With the increasing development of wind farms and associated cables in areas where post war munitions may have been dumped in large quantities, Unexploded Ordnance (UXO) surveys have become essential to mitigating risk during survey and installation operations to as low as reasonably practicable (ALARP). Atlas Professionals can provide consultancy services to manage geophysical surveys as well as the visual inspection and subsequent removal and disposal of Explosive Ordnance Devices (EOD). Our geophysicist QCs are trained in the use of magnetometers, gradiometers and electromagnetic induction (EMI) sensors and are experts in the processing and interpretation of data using software such as Geosoft Oasis Montaj to QC and provide full target listings of potential explosive devices.

Our ROV specialists are experienced in survey, the excavation and visual inspection of targets to identify UXO or non UXO objects. During excavation, removal and disposal operations we can provide EOD consultants with many years experience in munitions and bomb disposal often from the Armed Forces qualified either as Member of the Institute of Explosive Engineers (MIExpE), Member of the International Association of Bomb Technicians and Investigators (MIABTI), 8B8 UK military advanced Underwater Explosive Ordnance Disposal Officer or 8B1 UK military advanced Explosive Ordnance Disposal Officer.

Services:

  • Desk top studies
  • Project Management
  • Permitting and Legislation
  • Data Processing and Reporting
  • GIS and data modelling
  • Field supervision QC and interpretation