Region

Offshore, Marine & Pipeline Engineering in India

Kannamwar 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.

Proof points

Jacket face survey and assessment of 39 ONGC platforms
Riser installation engineering across four platforms and sixteen lifts
Conductor installation at Mumbai High with 120+ offshore supervision days
Structural review of five jackets and topsides
Riser lifting feasibility for 30+ lifts
Vessel pre-purchase survey and sea-fastening / load-out packages for Indian contractors

Who we work with in India

Our Indian clients are the operators and their contractors on the western offshore fields — ONGC and HPCL among them — together with EPC and installation contractors, fabrication yards and vessel owners serving those fields. Scopes range from a single sea-fastening package for a barge to multi-platform survey and assessment campaigns.

Brownfield work dominates: platforms beyond their original design life need survey, requalification and modification engineering, and installation contractors need transportation, lifting and riser or conductor installation packages that a marine warranty surveyor will approve.

Regulators, class and codes

Offshore structures in Indian waters are engineered to API RP 2A / ISO 19902 with OISD and DGH requirements; vessels are classed with the Indian Register of Shipping (IRS) or one of the IACS societies and flagged under the Directorate General of Shipping. Our founder trained as an IRS assistant surveyor, and IRS, ABS, DNV, LR and BV rules are in daily use here.

Vendor routes

We are enlisted with ONGC’s vendor portal for design engineering consultancy and registered with HPCL. Public-sector tenders also route through the Central Public Procurement Portal and GeM. For private operators and EPCs we work under direct purchase orders or frame agreements.

How we deliver

We deliver from Mumbai with the whole team in one office, which keeps the engineering consistent and the rates at Indian engineering-hour levels. Working hours in India Standard Time (UTC+5:30) overlap the Gulf for the full day, Europe for the afternoon and Southeast Asia for the morning, so review calls, class correspondence and comment resolution happen the same day. Site supervision and surveys are delivered by our engineers travelling to the yard or offshore location.

Countries & basins

IndiaMumbai HighWestern offshoreKG basinGujarat / PipavavWest-coast LNG

Regulators & class

IRSDGSOISDDGHABSDNVLRBV

Working hours

09:30–18:30 ISTSame-day Gulf & Europe overlap

Gulf (GCC) →

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Projects delivered here

Jacket face survey — 39 platformsStructural assessment of 39 jacket faces for riser and clamp installation — ONGC-approved hand sketches, drawings, and survey reports.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.Structural review — 5 jackets & topsidesIndependent review of structural deliverables for five offshore jackets and their topsides — design reports, calculations and drawings checked against applicable codes.Riser lifting feasibility — 30+ lifts assessedFeasibility assessment of riser installation across multiple candidate vessels — structural analysis and lift methodology for 30+ lifts assessed.Sea-fastening & load-out — crane on bargeSea-fastening design and load-out engineering for crane transportation on barge — 6 items secured for safe passage.

Services we deliver here

Third-Party Verification & Independent Design ReviewIndependent verification of offshore structural, naval architecture and pipeline engineering: design reviews, re-analysis with our own models, structural integrity assessments and owner’s-engineer review of contractor deliverables. Our team has reviewed five jackets and topsides for an operator and assessed 39 ONGC jacket structures, and supports jack-up site assessments in ONGC, ADNOC and Aramco fields.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.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.Class Approval Drawings & Statutory DocumentationClass approval drawings, calculations and statutory documents for newbuilds, conversions and modifications, prepared to the rules of ABS, DNV, LR, BV, IRS, NK, KR, BKI, RINA and CCS and taken through plan approval on the owner’s or yard’s behalf. Founder experience as an IRS surveyor means the package is written the way the reviewer reads it.FSRU & LNG Terminal Engineering with Cryogenic PipingEngineering for FSRU conversions and LNG import terminals: regasification and hull interface structure, jetty berthing and mooring analysis, cryogenic piping design and stress analysis to ASME B31.3, and class and IGC Code compliance. Cryogenic piping is a capability few boutique consultancies hold, and it lets us take an FSRU or terminal scope from marine structure to the regas manifold.

Neighbouring regions

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.

Sectors

Offshore Oil & Gas LNG, FSRU & Cryogenic Infrastructure Ports, Coastal & Marine Infrastructure

Disciplines

Offshore Structural Engineering Naval Architecture Pipeline, Riser & Subsea

Frequently asked questions

Are you registered as an ONGC vendor?

Yes, enlisted on ONGC’s vendor portal for design engineering consultancy, and registered with HPCL. Confirm current categories with us for a specific tender.

Do you work on the east coast as well as Mumbai High?

Yes. Engineering is delivered from Mumbai for any Indian basin; surveys and site supervision are delivered on location, as on the 120+ offshore days at Mumbai High.