The unique hardware and software devices AquaMag2 allow inspection of underwater pipelines with no impact on operational mode of facilities.

• Can be mounted on almost any ROV
• No need in additional adjustments
• Constant recording of data
• Capability of working 24/7
• Inspection in a real-time mode
• Universal casing and software interface
• High quality of recorded data

Engineering Center “Diagnostics” requests specific technical data, geographic and environmental information on the pipeline, as well as hydrological conditions to decide on the possibility of non-contact diagnostics implementation, choosing a strategy and tactics of the survey and issuing a commercial offer.​

The data received from the Customer (steel grade, pressure, diameter, depth, presence of repair structures, tie-ins, intersections with other pipelines, etc.) is also used to determine the nature of the defect.

​If the Questionnaire is not completed or incomplete information is provided, the reliability of the forecast may decrease, up to completely impassibleness to distinguish the types of damage.

Download the questionnaire

Equipment preparing

The mounting of AquaMag2 at an ROV should be preformed only after a careful study of technical characteristics of the ROV and the specification of a data transmission via umbilical.

• AquaMag2 mounting and synchronization of the software of the ROV and AquaMag2 are performed together by the engineers of EC "Diagnostics" and the ROV team on-site

• AquaMag2 is powered by the ROV, using the ROV umbilical for data transmission

The versatility of the device, its low weight and ease of mounting allow it to be mounted on almost any ROV model, suitable for the operating conditions on a specific pipeline.

An operator of AguaMag2 starts the inspection from switching o the deice and checking the settings. Then the ROV with the device mounted on it moves along the surveyed pipeline while the operator monitors the data on board of a DP-2 vessel. 


​The registration and recording of the parameters of the target pipeline magnetic field are done automatically and do not require any additional manipulations of the operator.

The magnetic field of the pipeline is displayed in a real time mode at the monitor of the operator laptop as a magnetogram. The software of AguaMag2 allows him to make comments and mark critical points on the traversed route " in motion" during the field survey, noting all the visible features of the route - weights, intersections, valves, etc. 

The distance traveled can be determined from the ROV odometer (distance sensor) displayed on an ROV navigation screen, as well as in absolute geographic coordinates using the GPS beacon system used for ROV navigation.

AguaMag2 device is mounted on an ROV and records the parameters of the magnetic field during the moving of an ROV along the pipeline. The tracing is done simultaneously.  

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• Continuous monitoring and quality control of data recording 
  

• Immediate response to changes in the situation 

• No need of repeated examinations 

The speed of the survey with AquaMag2 depends fully on an ROV characteristics and underwater conditions.

Preliminary data analysis without thorough mathematical processing is applied for a quick identification of the most standing out anomalies of the pipeline's magnetic field. If required, such an express analysis of a section up to 10 km length can be carried out in-situ. The main purpose of prompt data analysis on the site is to select the locations for a reconnaissance excavation. 

More thorough express-analysis can be provided to the customer in 1-2 days after the field survey.

• We use our unique software 

• We do the analysis at the site (hotel, camp, etc.) 

• We provide a Table of anomalies

The table of anomalies usually the following:

• The pipeline name
• Length and GPS-coordinates of magnetic anomalies zones
• Areas with insulation coating damage
• Absolute geographical GPS coordinates of control points of the route
• Identifying of areas where the inspection appeared to be impossible (for any reason)

The express-analysis of the received data reasonably allows our experts to choose the places for comparing factual defects with magnetic anomalies registered during the non-contact magnetometric inspection

We focus at the easiest to access part of the inspected section (an onshore part or a shallow water zone) where we select 2-3 places with anomalies of different levels, the most typical for this pipeline and we do contact NDT namely at these points.


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The data obtained as a result of the Additional Flaw detecting Tests (AFDT) is considered basic for the surveyed pipeline and acts as a basis for the interpretation of the rest identified anomalies.

A Final Report is done in the Analytical Center of EC “Diagnostics” in Saint-Petersburg (Russia).

In a Final Report we analyze all the available data including magnetometric data and data obtained during the AFDT and examination of the pipeline documentation are considered and compared. ​

Depending on an overall condition of inspected pipeline we prepare recommendations on activities required for safe exploitation of the object.

Usually a Final Report includes the following: ​

• Coordinates of anomalies and distances from the anomaly to the starting point
• Illustrations of the magnetic field state (magnetograms)
• Description of a probable nature of the defects:

          1. Stressed-deformed State (SDS)
          2. Local Damage (LD)
          3. Combination of defects (LD+SDS)

• Comparison of data with previous surveys
• Identifications of the certain area requiring immediate reaction, if any
• Google Map with consistent markings
• Photos from the site
• Graphs and diagrams
• Calculation of residual resource according to AFDT data
• Recommendations for the safe operation of the facility