Rotech Subsea
Est. 1994000
Rotech

Services

Controlledflowexcavation&jettrenching,perfected.

Hydrodynamically optimised tooling that delivers high volumes of seawater at precisely controlled pressure — burying, exposing and clearing with minimal seabed disturbance.

Rotech RS tool being deployed over the side of an offshore vessel
Cable & Pipeline Trenching — Rotech project
01 / 04

Cable&PipelineTrenching

Post-lay trenching, remedial lowering and joint burial of export, array and interconnector cables, umbilicals and pipelines — to specified depth of burial, first time.

Enquire about Cable & Pipeline Trenching
Controlled Flow Excavation — Rotech project
02 / 04

ControlledFlowExcavation

Deburial, spot excavation, HDD pit and structure access using precisely controlled seawater flow — minimal seabed disturbance, maximum control.

Enquire about Controlled Flow Excavation
Seabed Preparation — Rotech project
03 / 04

SeabedPreparation

Sandwave clearance, route clearance, pre-sweeping and freespan rectification to prepare the seabed for cable lay and tracked trenchers.

Enquire about Seabed Preparation
Cut, Recovery & IRM — Rotech project
04 / 04

Cut,Recovery&IRM

Single-operation locate, grab, cut and recover with the RSG-C — combined with CFE deburial and reburial for rapid cable repair campaigns.

Enquire about Cut, Recovery & IRM

RS equipment

Eighteentools.Threefamilies.Onestandard.

Select any tool to see specifications and applications. Every unit is maintained and mobilised from our Aberdeen base.

Capabilities

Builtforshallow,standardanddeepwater.

1 m

Shallow water operations from

1–300 m

Standard operating depth

300 m+

Deep water solutions

350 kPa

Soil cutting capability

14 m/s

Jet velocities up to

0–14,000 l/s

Controlled flow rate

Rotech operators monitoring a subsea excavation from the vessel control room

Applications

Sixteenwaysweworktheseabed.

01Cable array & export trenching / deburial
02Cable joint burial / IRM
03Pipeline trenching / deburial
04Backfilling for cable & pipeline protection
05Jack-up leg / spud can clearance
06Harbour / pontoon seabed clearance
07UXO deburial / access
08Freespan correction / seabed rectification
09Sandwave clearance / route clearance
10Umbilical & flowline trenching / deburial
11Salvage deburial / access
12Access to subsea structures / decommissioning
13Drill cuttings removal
14Cable, umbilical & pipeline recovery
15Rock removal / relocation
16Rock dump dispersal
Subsea cable resting in a freshly excavated trench on the seabed

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NotsurewhichRStoolfitsyourscope?

Share your seabed data, burial specification and vessel details. Our engineers will recommend the right tooling and configuration.