Touch Down Monitoring

Subsea services

We provide live touchdown monitoring during pipeline and cable lay operations, using ROV-mounted sensors and acoustic positioning to track seabed contact points and lay tension. Our real-time data ensures proper installation, prevents overstress, and creates definitive as-laid records for future reference.

From Blind Spot to Controlled Parameter

Our touchdown monitoring services deliver continuous, three-dimensional tracking of the touchdown point throughout installation, giving lay teams, vessel bridges, and survey engineers a single, real-time spatial picture of product shape, catenary geometry, vessel motion, and seabed contact — simultaneously and without interruption. Whether operating in shallow coastal waters or deepwater development fields with near-zero visibility, our systems maintain the positional and geometric awareness that keeps bend radius, tension, and route fidelity inside design envelopes at every stage of the lay.

Every touchdown monitoring programme we run is closed out with a complete, traceable installation record — tying product position, seabed contact history, and catenary behaviour into a defensible dataset that satisfies engineering verification, client sign-off, and regulatory requirements from first lay to final end termination.

How We Monitor Touch Down

3D Sonar and Sensor-Based Tracking 

Real-time visualisation of the product, catenary, and seabed — not estimated, not interpolated. We deploy ROV-mounted, sled-mounted, or USV-mounted 3D sonars and imaging systems to continuously visualise the touchdown zone, combining sonar with depth, attitude, and motion sensors on both the monitoring platform and lay vessel to compute the precise touchdown point even when visibility is zero.

Integrated with Lay Control and DP

Touchdown position, product shape, and clearance data streamed live into survey and lay control software — synchronised with vessel DP data, payout length, and tension in real time. Automated tracking algorithms maintain the touchdown within the planned corridor and flag deviations, overbending events, or out-of-tolerance catenary shapes the moment they occur, giving the lay spread team the decision-support they need without delay.

Pre-Lay, Live-Lay, and Post-Lay Support 

One monitoring configuration, three critical phases — pre-lay trials and route verification, live monitoring through main lay and pull-ins, and immediate post-lay confirmation without demobilising and redeploying. The same setup that verifies the seabed before the product goes in confirms it is correctly placed once laying is complete.

Shore Approaches, Crossings, and Congested Zones 

Where tolerances tighten and conditions challenge conventional monitoring, we adapt. Shore approaches, pipeline crossings, and congested infrastructure zones demand geometry adjustments, equipment substitution, and operational flexibility — and we engineer the monitoring solution around the constraint, not around what is convenient to deploy.

What We Deliver: Installation Grade Lay Records

RealTime Touchdown Visualisation & Alarms

Continuous 3D visualisation of cable or pipe catenary and touchdown location against the planned route, with configurable alarms for bend radius, lateral offset, and lay tension thresholds.

As Laid Touchdown Tracks

Exportable, timestamped tracks of actual touchdown positions for the full length of the installed product, formatted for comparison with design routes and post lay survey results. These records support as laid documentation, warranty claims, and future inspection planning.

Lay Performance & Deviation Reports

Operational reports summarising lay speeds, tensions, route deviations, overbend events, and any corrective actions taken in response to touchdown monitoring. This provides a traceable narrative of installation quality for client, regulator, and certification bodies.

Data for Integrity, GIS & Digital Twins

Touchdown, catenary, and operational data are delivered as georeferenced datasets ready for import into GIS, cable/pipeline integrity tools, and digital twin platforms—linking installation conditions directly to future performance assessments.

Industries We Serve

Oil, Gas & Renewables

Ports & Harbours

Coastal Engineering & Climate Resilience

Dredging & Marine Construction

Marine Infrastructure

Bridge Pier Scour Assessment | Causeway Alignment Surveys | Submerged Asset Inspection | Intake/Outfall Mapping | Quay Wall Condition Assessment

Water Resources & Inland Hydraulics

Reservoir & Dam Surveys | River Cross-Sections | Floodplain Bathymetry | Sedimentation Studies | Hydrodynamic Model Inputs

Marine Mining

Seabed Mineral Exploration | Deep‑Ocean Resource Mapping | AUV Survey | Multiphysics Targeting | Environmental Baseline

Environmental Management

Defence & Security

Seabed Clearance | UXO Pre-Characterization | Submerged Obstruction Detection | Underwater Infrastructure Mapping | Risk & Vulnerability Assessment

Our Methodology: Precision at Every Stage

A proven four-stage process ensuring accuracy, compliance, and actionable insights

Plan with Intelligence

Before mobilizing, we begin with a data-driven understanding of your asset environment. We perform a comprehensive site intelligence review — analyzing existing drawings, access limitations, hazardous zones, operational constraints, and required accuracy levels.

Precision Field Acquisition with real time QC

Our field teams deploy fully calibrated instruments in strict accordance with manufacturer specifications and project QA protocols. Intelligent workflows deliver real-time on-site feedback on coverage, registration integrity, and data quality

AI-Driven Data Processing & Extraction

Curates raw data, Guides AI, Validates Output into actionable digital intelligence through a hybrid pipeline of advanced algorithms, machine learning models, and expert review.

Decision-Ready Deliverables

Outputs are not merely models but enterprise-ready information assets. All datasets undergo independent quality assurance audits. We ensure your organization can immediately operationalize the data for planning, maintenance, and strategic decision-making.

Case Studies

We're building a greener tomorrow. Our solutions optimize operations, cut waste, and lower emissions, supporting net-zero goals.

Subsea services

Subsea Geophysical Services

Advanced nearshore pipeline mapping using integrated geophysical technologies to determine precise burial status and mitigate environmental risks. Our comprehensive survey delivers the critical data needed…

200m

Survey Corridor Width

100%

Data Compliance

Zero

Environmental Incidents

Subsea services

Precision Positioning & Metrology

Millimeter-accurate jacket positioning using robotic total stations and high-precision leveling to ensure perfect fit-up between new and existing structures. Our exacting survey methodology delivered flawless…

±2mm

Positioning Accurac

100%

Fit-Up Accuracy

Zero

Safety Incidents

Why Organizations Choose Our Touch Down Monitoring Services

Technical Excellence

Industry-leading accuracy specifications (±1–2 mm TLS, ±2–5 cm aerial) backed by systematic, documented QA/QC processes ensuring reliable, repeatable results across diverse project types — from offshore platforms in extreme marine environments to sensitive heritage interiors.

Operational Efficiency

Multi-platform deployment and AI-accelerated processing compress project timelines by up to 70%. What once required months of manual survey and CAD drafting now delivers registered, classified point clouds and intelligent models in days to weeks.

Integrated Solutions

Complete service delivery from project planning and field acquisition through processing, modeling, and specialized analysis — all under one roof. No fragmented vendor chains, no data conversion losses, no accountability gaps.

Industry Expertise

25+ years of specialized knowledge across regulated, high-stakes environments. We don’t just capture geometry — we understand what it means for your operations, your compliance obligations, and your capital planning decisions.

Proven ROI

Our clients consistently document measurable returns: 30–50% reduction in field rework, 20–40% faster project delivery, elimination of fabrication mismatches, and extended asset service life through predictive condition monitoring. Reality capture isn’t an expense — it’s a multiplier on every downstream decision.

The Subsea Intelligence Advantage

At the intersection of marine survey rigour and advanced digital workflows, we transform raw acoustic and optical signals into validated, fully integrated subsea models that engineering, dredging, and operations teams can interrogate, trust, and act on from day one.