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Sea Axe Mass Flow Excavation – JBS Sea Axe

Sea-Axe is the most advanced controlled flow excavation system available for sale or lease in the market place today.

Home / Services / Sea Axe Mass Flow Excavation – JBS Sea Axe

Overview & Applications

JBS Fabrication Ltd subsea excavation services provide mass/controlled flow excavation (MFE/CFE) subsea excavators and auxiliary equipment using our patented Sea Axe. The equipment is available for lease and sale complete with a full complement of experienced operational personnel available 24 / 7 to support Sea Axe operations globally. Sea Axe is manufactured by JBS in the UK.

Sea Axe CFE equipment is the best available technology for subsea and pipeline excavation in the oil & gas, renewable energy and decommissioning sectors.

Sea Axe subsea trenching capabilities have evolved from the traditional mass flow excavation subsea technology. Sea Axe is set to lead the market in subsea controlled flow excavation. Sea Axe works through natural erosion of the seabed hence it is the most environmentally acceptable method available for subsea excavation. Natural erosion significantly reduces the impact on the ecological environment.

The Sea Axe excavator is easily adaptable and can excavate a wide range of seabed materials up to 200kPa shear strength using the in-built auxiliary jets.

Sea Axe will meet specific project requirements such as rock, sedimentary displacement or seabed preparation.

Sea Axe can remain in the water for up to 72 hours and requires minimal maintenance.

Sea Axe is a non-contact and non-intrusive mass flow excavator, making it ideal for offshore windfarm subsea cable work or reducing stress on live cables via high-spot subsea excavation.

Our Subsea excavation services include:

  • Subsea trenching
  • Pipeline excavation and deburial
  • Subsea engineering
  • Mass flow excavation
  • Subsea Dredging
  • Freespan Correction and Seabed Rectification
  • Access to subsea structures
  • Windfarm Cable Array and Export Trenching / De-burial
  • Cable Joint Burial / IRM
  • Jack-up Leg / Spud Can Clearance
  • Harbour / Pontoon Seabed Clearance
  • UXO De-burial / Access
  • Cable and Pipeline Route Clearance
  • Umbilical & Flowline Trenching and De-burial
  • Salvage De-burial / Access
  • Access to Subsea Structures / IRM / Decommissioning
  • Subsea Cable Location and Recovery
  • Umbilical / Pipeline Recovery
  • Rock Dump Dispersal
  • Subsea Pipeline and Cable Installation
  • Small deck space – only 8m x 10m required on vessel

Sectors

  • Oil & Gas
  • Marine
  • Defence
  • Renewable Energy
  • Ports and Terminals
Sea Axe Subsea Excavation Brochure

Video & Media Gallery

Sea Axe With Jets
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Sea Axe Build
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Image taken at JBS Scotland at their Peterhead facility to illustrate SMAS case study.
Taken 09-10-19
Lifting Out of Water
Sea-Axe Mass Flow Excavator
West Tyra Field Sea-Axe subsea excavation
Nordergrunde
Sea Axe Over The Side
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Sea Axe Deploying
IMG_0109
JBS Sea-Axe Launch
Lianne
SONY DSC
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Tidal Operations
JBS Mass Flow Excavation Subsea
Poland Sonar - Copy
DHPU2 - Copy
Deck Layout
IMG_0139
IMG_0106
20170525_122158_resized
JBS Tritech Gemini Sonar Equipment Layout
China Spooler1
China Spread - Copy
DHPU1 - Copy
Sonar 1 (2)

Solutions offered by JBS include excavation, burial, seabed debris clearance to include:

  • Cable Array and Export Trenching / De-burial
  • Cable Joint Burial / IRM
  • Pipeline Trenching / De-burial
  • Backfilling for Cable / Pipeline Protection
  • Jack-up Leg / Spud Can Clearance
  • Harbour / Pontoon Seabed Clearance
  • UXO De-burial / Access
  • Freespan Correction / Seadbed Rectification
  • Sandwave Clearance / Cable & Pipeline Route Clearance
  • Umbilical & Flowline Trenching / De-burial
  • Salvage De-burial / Access
  • Access to Subsea Structures / IRM / Decommissioning
  • Drill Cuttings Removal
  • Cable Recovery
  • Umbilical Recovery
  • Pipeline Recovery
  • Rock Removal / Relocation
  • Rock Dump Dispersal

Projects & Case Studies

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Exposing Culvert Areas for Diver Installation of Manifolds in Moray Firth, inshore waters, UK

Exposing 38 Cables on 19 Monopiles for Proof of Cable Lay, offshore waters, Germany

Maersk Tyra Field – Exposing Access for Tyra Tie-ins and Gas Pipeline offshore waters, Denmark

Sea Axe CFE Subsea Pipe Laying and Post Trenching

Get in touch today!

Contact us today to learn more about how our Sea Axe subsea excavation equipment can help you.
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