Six disciplines,
one delivery team.

Dimension provides comprehensive engineering and project services across offshore, marine and industrial sectors — from initial research and engineering design to fabrication, installation and operational support.

/ Service 01

Engineering

Multidisciplinary engineering for marine, offshore and industrial systems — naval architecture, structural, mechanical, hydraulic, electrical and process design with a focus on constructability and operational reliability.

In-house FEA — structural analysis of a Dimension cable-lay equipment package
  • /01
    Naval architecture & hydrodynamics

    Vessel sizing, stability, motions, seakeeping and resistance — for new-build conversions and operational analysis.

  • /02
    Structural engineering

    Hull modifications, foundations, sea-fastening, lift & transport analysis. Class-compliant FE modelling and code checks.

  • /03
    Mechanical & hydraulic

    Cable lay equipment, deck machinery, cranes, winches, hydraulic power units. From concept through detailed design to commissioning.

  • /04
    Process & piping

    Industrial process layouts, P&IDs, piping stress analysis and material selection for offshore and onshore systems.

  • /05
    Electrical, instrumentation & controls

    Power systems, control philosophies, PLC/SCADA integration and instrumentation for cable lay equipment and vessel modifications.

  • /06
    Class & regulatory liaison

    Direct engagement with ABS, BV, DNV, LR, ClassNK and flag administrations through plan approval and survey.

/ Service 02

Project Management

End-to-end execution from contract award through handover. Single point of accountability across engineering, procurement, fabrication, FAT, mobilisation and offshore commissioning.

Offshore substation cable pull-in — Dimension project management on an OSS topside campaign
  • /01
    Project planning & scheduling

    Primavera and MS Project schedules with weight/cost loaded baselines, critical path management and earned-value reporting.

  • /02
    Procurement & vendor management

    Long-lead item strategy, RFQ packages, technical bid evaluation, supplier QA and inspection planning.

  • /03
    Fabrication oversight

    Yard supervision, weld & NDT surveillance, ITP execution and progress reporting in shipyards across SE Asia, India and the Middle East.

  • /04
    FAT, SAT & commissioning

    Factory and site acceptance testing of equipment packages, integrated systems testing and offshore commissioning support.

  • /05
    HSE & quality management

    HSE plans, risk registers, ISO 9001 / 14001 / 45001 compliant QA/QC and incident investigation.

  • /06
    Cost & risk management

    Change management, contingency drawdown, schedule risk analysis and lessons-learned reporting.

/ Service 03

Vessel Conversion

Conversion of OSVs, AHTs, DSVs and barges into purpose-built marine assets — cable lay vessels, geotechnical drill ships, decommissioning platforms and special-purpose construction vessels.

GL 2030 DP2 Cable Lay Barge — Dimension-engineered carousel + loading tower spread for LS Marine Solution
  • /01
    Feasibility & concept design

    Mission analysis, vessel selection, motion & capability studies and ROM cost estimates.

  • /02
    Cable lay vessel conversion

    Adding turntables/carousels, tensioners, lay spreads, DP upgrades, accommodation and helideck modifications.

  • /03
    Geotechnical drill ship conversion

    Moonpool installation, derrick & drill floor integration, drill mud system and laboratory modules.

  • /04
    Detailed design & class approval

    Full conversion design package: GA, structural, marine systems, electrical and outfitting — approved through class.

  • /05
    Yard supervision & commissioning

    On-site engineering team during conversion, supporting yard, owner and class through delivery and sea trials.

/ Service 04

T&I Capabilities

Transportation and installation engineering and offshore execution for subsea cables, pipelines and equipment — from front-end engineering to offshore execution and as-built reporting.

Transportation & Installation — Dimension T&I support vessel + crane operation
  • /01
    T&I procedures & method statements

    Lift plans, sea-fastening, transit, anchor handling and overboarding procedures for offshore campaigns.

  • /02
    Lift & transport analysis

    Hydrodynamic motion analyses, dynamic amplification factors, RAOs and structural checks per DNV/Noble Denton rules.

  • /03
    Mobilisation & demobilisation

    Vessel mob/demob engineering, sea-fastening design, equipment integration and on-site supervision.

  • /04
    Offshore installation supervision

    Client representation, offshore engineering and 24/7 onboard support during installation campaigns.

/ Service 05

Cable Lay

End-to-end cable lay solutions — from feasibility and route engineering through equipment selection, vessel sizing, lay engineering and offshore execution. Submarine power, fibre and umbilical cables.

JN1 second-end cable lay — float-out using buoys for nearshore beach landing
  • /01
    Cable lay engineering

    Tension & touchdown analysis, residual top tension, bottom tension, vessel route engineering and cable handling procedures.

  • /02
    Equipment selection & sizing

    Tensioner, carousel, turntable and overboarding equipment sizing for the specific cable, depth and project requirements.

  • /03
    Shore pull-in & landfall design

    HDD, open cut and jacking pipe options. Pulling force analysis, transition joint bay design and beach manhole layouts.

  • /04
    Cable jointing & termination

    Procedures and offshore support for factory joints, repair joints and field joints on power and fibre systems.

  • /05
    Burial assessment study (BAS)

    Soil-dependent burial assessments, target burial depth, route trenching strategies and protection recommendations.

/ Service 06

Trenching Solutions

Pre-lay and post-lay trenching strategies, equipment selection and execution support — for power cable, fibre cable and pipeline burial across the full range of seabed conditions.

Trenching Vertical Injector (VI) launch frame — Dimension subsea trenching support
  • /01
    Trenching method selection

    Jet trenching, mechanical trenching, ploughs and mass-flow excavation — matched to soil, depth and burial target.

  • /02
    Burial assessment & protection

    Cable protection from anchors, fishing gear, currents and seabed mobility — with rock dumping and concrete mattress design.

  • /03
    ROV trencher operations

    Trencher mobilisation, vessel integration, offshore execution and as-built burial reporting.

  • /04
    Free-span analysis & remediation

    Span identification, VIV assessment and remediation strategies — rock berms, mattresses, stabilisers and grout bags.

How We Work

From Enquiry to Handover.

A delivery model honed across 600+ offshore installations and 14 equipment categories.

01

DISCOVER

Mission analysis, scope definition, technical & commercial alignment.

Wk 1 — 2
02

DESIGN

Engineering, FEED, equipment selection and class plan approval.

Mo 1 — 4
03

BUILD

Procurement, fabrication, FAT and yard integration.

Mo 4 — 12
04

DELIVER

Mobilisation, sea trials, commissioning and offshore execution.

Mo 12 — 18
05

SUPPORT

Operational support, spares, training and lessons learned.

Ongoing
Engage Dimension

Tell us about your project.

From a single design study to a full vessel conversion — we'd be glad to scope it with you.