To meet growing client demands for integrated
geophysical and geological data recovery, EGS operates
its own comprehensive suite of geotechnical equipment
for ground truthing in both nearshore and offshore environments.
EGS has steadily expanded its marine geotechnical capability to meet the increased demand for integrated geological and geophysical surveys from deep ocean to the water's edge.
Offshore equipment includes gravity and piston coring, vibrocores and Cone Penetrometer Tests, which can be operated in depths up to 3,000m. Nearshore capability also includes vibrocoring, 10T capacity seabed CPT and rotary soil and rock drilling and in-situ testing from floating vessels or jack up barges, for the intertidal zones less than 30m water.
EGS owns a DP2 Offshore Drilling Vessel equipped with compensated drill equipment, pipe handling and mud system. The OSV Geo Energy carries the following as minimum:
The EGS 25 drilling rig, has evolved from an existing field proven design and benefits from the addition of a mechanised pipe handling system and other safety features and upgrades to produce a modern safe efficient rig that more than meets the challenging demands of today’s offshore geotechnical industry. The drilling derrick is a single mast of lattice construction with a compensated sampling platform enabling a safe trouble free deployment of drilling equipment and wireline downhole tools. There is also the option to install automated tool handling in line with industry initiatives to improve safety. The EGS 25 has a lifting capacity of 25 Tonnes to enable a drilling depth ability of 275 metres below the seabed in up to 150 metres of water when using standard 5” API steel drill pipe subject to ground conditions.
Onboard Getechnical laboratory is made available by EGS on board the OSV Geo Energy to fulfill the clients requirement at field.
EGS own jackup barges for shallow water, coastal and port development getechnical survey purposes. They all come with a continerized solution, easily transportable and could be assembled at port or at the beach.
Seabed and subsoil sampling provides geological samples required for geotechnical testing for engineering design as well as to ground truth geophysical survey results. Soil sampling also provides material for geochemical analyses for both exploration and environmental purposes. EGS successfully operates a number of seabed sampling and coring systems including:
EGS have carried out thousands of cone penetration tests (CPTs) across the globe. It is a cost effective method of measuring the geotechnical properties of the shallow seabed materials.
Equipment is mobilized to site efficiently through a modularized approach where either inshore survey equipment is compact enough to be air freighted, or the larger offshore equipment together with offices, laboratories and workshops are containerized for shipping.
EGS also owns standard 3m push, 100KN seabed CPTs with 10cm2 cones and 3m push sampler to 3,000m, and up to 30m push in nearshore conditions.
Parameters measured by the CPT are:
EGS own a number of Datem Neptune 3000 CPT and Neptune CPS 10 units around the globe for immidiate mobilization as well as units installed on all of its survey vessels.
EGS-T 25 Marine Drill Rig
Subsea Seabed Samples Classification
CPT Tests at Field
EGS 6m Vibrocorer utilized offshore
EGS Getechnical Jackup Barge
EGS Land CPT Truck
The co-operation and working relationship between all parties during all phases of this project has been a text book example of how to conduct survey operations etc.Holland, Geoff
I just wanted to take the opportunity presented by the end of survey data acquisition activities to say thank you and well done on the excellent performance of the EGS team through the execution of the works to date. Whilst I’m mindful that there is still much to do in terms of tide gauge recovery, data processing and deliverable preparation – the performance of all personnel involved to date from EGS and Broadsword has been exemplary and particularly, the professionalism and attention to detail of the site team. It’s also been particularly pleasing to see this complicated and challenging scope completed in such a competent and hassle-free manner.Rhys Jones
I would like to thank you for this excellent survey. Your team was professional and knowledgeable. It was a pleasure to work with them.Philippe Hubert
On behalf of TOTAL E&P PNG and InterOil, we would like to express our gratitude for the efficient operation of the survey as well as safe and timely return to Port Moresby. It was a pleasure working with you all on the ground. We wish you all the best in your future endeavors.Anton A Safronov