Mooring inspection services


Ashtead Technology have an extensive array of packaged solutions covering a range of mooring inspection applications.

Welaptega, an Ashtead Technology company, is the world’s foremost innovator in offshore mooring inspection, engineering, and integrity services. Over their 29-year history, they have developed pioneering technologies and services that operators of FPSOs and other offshore facilities rely on for risk-based integrity engineering, mooring fitness for purpose assessment (MFPA), and Class and FUMA insurance compliance.

Welaptega have a proven track record in providing critical technical services in support of safe, productive and profitable offshore operations.

Using advanced optical and mechanical metrology and NDT tooling technology Welaptega provide the accuracy and expertise needed to mitigate risk, forestall failure, and manage the ongoing integrity of offshore operations.

Welaptega provide services from the initial planning stage through to the provision of offshore inspection and final reporting, delivering proven commercial benefits and risk reduction.

Integrated solutions


Discover how Ashtead Technology incorporates market-leading technologies and innovative life of field services to help clients deliver complex projects.

Accurate measurement of in-situ subsea mooring chain condition, using either optical or mechanical measurement requires the removal of marine grow from the chain links.

Welaptega, an Ashtead Technology, company have developed and optimised a range of bespoke subsea ROV deployed tools capable of effectively removing marine growth from moorings.

These tools are available as part of Welaptega’s offshore mooring inspection service where they can be installed, operated and maintained by experienced offshore inspection technicians. Alternatively, the cleaning tools can be supplied for use in a wide range of ROV deployed subsea cleaning tasks.

Welaptega, an Ashtead Technology company, is the leading provider of mooring optical and mechanical metrology solutions and services. Welaptega have a proven track record in planning, executing and delivering precise three-dimensional information for subsea applications. Moorings are structurally complex systems that are subject to a wide range of damage and deterioration. The key to successful progressive inspection is to use specialised personnel who have the experience to know when it is necessary to escalate the level of inspection detail.

Acquiring precise subsea dimensional data in a dynamic environment is a major challenge in terms of capturing the required accuracy. To achieve this it takes specialist equipment and knowledge of how to plan for maximum effect, operate systems correctly and how to process the data to achieve maximum performance.

Welaptega provide a range of bespoke, robust optical and mechanical metrology tools, which have been developed and optimised for use in harsh subsea environments deployable by an ROV.

These tools are available as part of Welpatega’s offshore mooring inspection service where they can be installed, operated and maintained by experienced offshore inspection technicians.

In addition to mooring chain inspection, the wire rope section of moorings must be inspected and assessed for condition. Welaptega, an Ashtead Technology company, provide two unique ROV deployed robotic solutions for these in-situ tasks.

Welaptega’s Rope Measurement System (RMS) identifies changes in the cross-sectional geometry of wire and fibre ropes to identify symptoms of deterioration, which could lead to failure. The system provides 360-degree visualisation along with built in marine growth cleaning capability.

The Semi-Autonomous Mooring Inspection Robot (SAMIR) combines visual inspection, photogrammetric measurement and Magnetic Flux Leakage (MFL) technology to assess the in-service condition of sheathed and unsheathed wire mooring lines. This system provides quantitative inspection of internal defects, which cannot be seen, by visual inspection alone.

These bespoke systems are available from Welaptega as part of its advanced mooring inspection service and are provided with experienced offshore inspection technicians to install, operate and collect data for client analysis.

Welaptega Wire Rope Measurement System

As a leading provider of inspection solutions, Ashtead Technology have a long and successful track record in integrating diverse and advanced sensor technologies with mechanised and automated inspection systems to deliver a step-change in productivity whilst eliminating many elements of safety risk.

Integrity inspection techniques for offshore structures through the splash zone and underwater have become increasingly advanced with a definite trend toward simultaneous multiple-sensor inspection passes, eliminating the need for human intervention where possible.

We understand specific needs and can integrate unique solutions for the inspection of caissons, risers, structures and wellheads and in-wellbore applications, delivering major cost reductions over inspection campaigns and improvements in offshore safety.

The inspection of caissons and risers through the splash zone and subsea is a specialist operation, which has a number of interlinked tasks with diverse instruments to establish integrity and assess risk. As the market migrates towards the use of remote riser and caisson systems, the potential to integrate multiple sensors into a single tool deployment creates an opportunity to significantly improve inspection data quality and coverage to reduce inspection time.

Ashtead Technology is a specialist in the integration of integrity monitoring solutions onto remote inspection platforms for in-air and subsea caisson and riser inspection.

With our knowledge of inspection technologies and remote deployment methodologies, we can provide a fully integrated inspection package that delivers improved coverage and data quality from deck to seabed, reducing the number of inspection steps with improved productivity and lower inspection costs.

At Ashtead Technology, we have a proven track record in providing remote inspection and metrology solutions for wellhead, in-well and annular applications, utilising advanced laser, ultrasonic and video technologies.

Wellheads and well tubulars require a number of different inspection and verification techniques during operation and maintenance requiring a suite of solutions to meet specific needs. Examples include inspection of sealing faces, metrology of machined profiles, ovality measurement, material loss crack detection and dimensioning and assessment of solids build-up.

Ashtead Technology can provide a suite of specialist services to acquire information so informed decisions can be made.

Getting access to structures can be difficult and can involve significant safety risks, particularly under structures and in the air gap between the platform and splash zone. When inspection operations are subsea, the challenge becomes even greater.

We have a proven track record in delivering substantial cost savings through the delivery of semi-automated and fully automated robotic inspection systems for deployment on topside and subsea structures.

Robotic inspection fits particularly well into this space, but this methodology only returns true benefits if there is a clear understanding of how to integrate sensors with robotic systems and maximise results from the inspection.

At Ashtead Technology, we can provide services from the initial planning stage through to the provision of robotic systems and offshore support, delivering proven commercial benefits, reduced inspection time, vessel dependency and costs.

With a drive towards de-manning and remote automation, robotic inspection systems have become more common in offshore and hazardous environments. However, robotic systems are just the delivery vehicle for sensor systems, so the challenge is to integrate inspection technologies on to the vehicle so the data is reliable and the area can be mapped.

As a provider of remotely operated robotic inspection systems for hulls, tanks and storage facilities with a range of assets and sensor technologies, we have the ability to support throughout the planning and execution of inspection campaigns for offshore, underwater and onshore assets.

Working closely with our clients, we can help deliver highly improved inspection records, reducing time and costs through the use of advanced sensor systems.