Service

Transportation & Installation (T&I) Engineering

Transportation and installation engineering for jackets, topsides, modules, risers and conductors: load-out, transportation, launch or lift, upending, set-down and hook-up analysed as one sequence, with the method statements and calculation notes the marine warranty surveyor reviews. Delivered for ONGC riser and conductor installation campaigns and vessel-based installations in Nigeria.

What you receive

Installation sequence and method statement inputs for each marine operation
Transportation, launch, upending and lift analyses (MOSES / OrcaFlex / SACS)
Installation aids: bumpers, guides, lifting and sea-fastening steel, temporary supports
Barge and crane-vessel stability, mooring and positioning checks for each stage
Riser and conductor installation engineering: clamps, guides, running and stabbing procedures
MWS submission package and comment resolution to certificate of approval

One sequence, not separate calculations

T&I fails at the interfaces: a jacket designed for its in-place loads but not for the launch, a topside lifted with padeyes sized for a different crane, a riser clamp that meets the platform but not the installation vessel’s reach. We engineer the sequence end to end so every temporary condition is analysed with the same weight report and the same criteria, and the method statement matches the calculations the MWS approves.

Offshore installation campaigns we have supported

Riser installation across four platforms with sixteen lifts; a conductor installation campaign at Mumbai High with 120+ offshore supervision days; feasibility for more than thirty riser lifts; and a pipe-lay vessel upgrade for piggyback pipeline installation in Nigeria. Site supervision is delivered by our engineers offshore when the client wants the designer present.

Codes

DNV-ST-N001 (marine operations and marine warranty), ISO 19901-6, API RP 2A and ISO 19902 for the structures, client and MWS-specific procedures.

Codes & standards

DNV-ST-N001ISO 19901-6API RP 2AISO 19902IMCA

Software

MOSESOrcaFlexSACSGHSSTAAD.Pro

Operations

Load-outTransportationLaunch & upendingLiftingFloat-overRiser & conductor installationHook-up

← FSRU & cryogenic piping

Subsea pipeline design →

Let's Build Something

Ready to Start Your Next Project?

Let's discuss how our engineering expertise can bring your vision to life — from concept to commissioning.

Projects that prove it

Riser installation — 4 platforms, 16 liftsCrane vessel installation engineering for risers across 4 offshore platforms — vessel selection, installation analysis, and methodology for 16 lifts.Conductor installation — Mumbai High, 120+ offshore daysSite supervision and project management for conductor installation at Mumbai High — 120+ offshore days, ONGC post-installation approval secured.Riser lifting feasibility — 30+ lifts assessedFeasibility assessment of riser installation across multiple candidate vessels — structural analysis and lift methodology for 30+ lifts assessed.Pipelay vessel upgrade — piggyback pipeline installationTwo-phase engineering to modify an operating pipelay vessel for piggyback pipeline installation — from technical feasibility and modification concept to detailed engineering.

Related services

Sea Fastening & Load-out EngineeringSea-fastening and load-out engineering for cargo, modules and cranes carried on barges and heavy-transport vessels: motion and acceleration criteria, grillage and tie-down design, ballast and load-out sequences, and the calculation package prepared for marine warranty surveyor approval. Delivered from Mumbai to EPC, T&I and fabrication contractors in India, the Gulf, West Africa and Southeast Asia.Lifting & Heavy-Lift EngineeringLift engineering for offshore and yard lifts: rigging design, lift-point and padeye checks, dynamic amplification, crane-vessel and barge stability during the lift, and the lift plan calculations reviewed by class or a marine warranty surveyor. Our team has engineered 100+ heavy lifts, including riser and conductor installation campaigns on ONGC platforms.Riser & Conductor Installation EngineeringInstallation engineering for risers and conductors on fixed platforms: clamp and guide design, lift and running procedures, vessel interface, fatigue during installation and the MWS-ready calculation package. Our team engineered a four-platform riser campaign with sixteen lifts, assessed feasibility for more than thirty riser lifts, and supervised conductor installation at Mumbai High for 120+ offshore days.

Regions we serve for this

Offshore, Marine & Pipeline Engineering in IndiaKannamwar Engineering is headquartered in Mumbai and delivers offshore structural, naval architecture and pipeline engineering to operators, EPC contractors and yards across India: ONGC’s western offshore fields, HPCL’s marine terminals, west-coast LNG infrastructure and the east-coast basins. 39 ONGC jacket structures assessed, riser and conductor installation campaigns engineered, and 120+ days of offshore site supervision at Mumbai High.Offshore Engineering Support for the Gulf: UAE, Saudi Arabia, Qatar, Oman, KuwaitEngineering support for EPC, T&I and fabrication contractors and jack-up operators working in the Arabian Gulf: jacket and topside engineering, sea-fastening and load-out packages, lifting engineering, jack-up site-specific assessment support and third-party design review, delivered from Mumbai in the same working day. Saudi Aramco and Lamprell are among our clients.Offshore & Marine Engineering Support for Nigeria and West AfricaEngineering support for vessel owners, installation contractors and terminal developers in Nigeria, Ghana, Angola and the wider Gulf of Guinea: vessel upgrades and deck-equipment installation, pipe-lay and installation engineering, class approval packages and design review. Our team has delivered a pipe-lay vessel piggyback pipeline upgrade and a four-davit installation on vessels operating in Nigeria.

Sectors

Offshore Oil & Gas Offshore Wind & Renewables

Disciplines

Offshore Structural Engineering Naval Architecture

Frequently asked questions

Do you produce the method statements as well as the analyses?

We provide the engineering inputs and the calculation notes the method statement relies on; the installation contractor issues the method statement, and we support it through the MWS review.

Can your engineers attend the installation offshore?

Yes. Site supervision is one of our capabilities; our team logged 120+ offshore days on a conductor installation campaign at Mumbai High.