ASI Hydro is a joint venture marine service(s) company between DS Group and ASI Group Ltd. (ASI Marine), a world leader in flooded tunnel inspections. This joint venture allows ASI Hydro to provide industries and governments worldwide with leading-edge underwater services focused on the assessment, maintenance, rehabilitation, and construction of underwater infrastructure. Specifically, ASI Hydro specializes in underwater remotely operated vehicle (ROV) operations, and marine geophysical and hydrographic surveys.
Our underwater ROV operations take place in both contained environments (e.g., inside tunnels, pipelines, etc.) and non-contained open water environments (e.g., dock/dam inspections, pipeline/cable route inspections, intake/outfall inspections, target identification, etc.).
Our divers, construction crews, engineers and technicians are backed by a fleet of advanced robotic vehicles; providing the latest in sonar and video imaging, survey and inspection technologies. ASI Group has earned an international reputation for the highest standards of quality in serving municipalities, hydro power producers, refineries, manufacturing industries, mines and pulp and paper mills.
ASI’s extensive ROV experience combines knowledge and technology to provide remote services that give our clients the data they require to make critical decisions and solutions to solve their problems.
ASI Group is the world leader in inspections of long water conveyance tunnels using Remotely Operated Vehicles (ROV’s). Tunnel inspections utilizing ROV technology provide:
Each vehicle in ASI’s ROV fleet has the longest distance capabilities of their class worldwide. Our unique tunnel inspection experience and underwater robotic capabilities have earned ASI a place in the Guinness World Book of Records, records which remain unchallenged.
3D Mapping for Condition Assessment. New and innovative technologies enable ASI Hydro technicians to collect point cloud data and produce unique and remarkable 3D visuals allowing clients an easy, clear and accurate understanding for their condition assessment.
ASI Hydro’s capability to perform mapping of submerged infrastructure adds great benefits to generating a complete condition assessment, with the ability to create baseline and comparative surveys. Inertial Navigation coupled with acoustic profilers allow for production of complete, geo-referenced data sets. 3-dimensional maps of pipelines and tunnels can be constructed for real-time display and processed deliverables.
ASI Hydro works with clients to assemble a custom suit of equipment and technologies to meet project requirements. During an investigation, data collection is displayed in real-time to aid in navigation and to allow the technician to make instantaneous analysis of the infrastructure. Recorded information is used to generate detailed reports including graphics and models of the assets.
Detailed reports in various formats allow clients a greater understanding of their asset’s condition and, assists clients in making decisions relating to cost effective maintenance programs.
ASI Hydro owns and operates a diverse fleet of advanced remotely operated vehicles (ROV’s) that services a wide range of industries. Combined with the latest in video capture and sonar imaging, specialized ROV tooling and inspection techniques, ASI’s ROV Service has earned international reputation for the highest standards of quality.
ASI has proven the viability of Remotely Operated Vehicle (ROV) inspections as a safe and cost effective technology to determine condition assessments of underwater assets. ASI has gained international recognition for research and development of remote techniques for underwater inspection and maintenance and welcomes the opportunity to handle complex technical assignments in challenging underwater environments.
Our ROV fleet includes a wide range of vehicles capable of carrying various sensor or tooling packages to meet the inspection and maintenance needs of our clients. ASI’s extensive experience using ROV’s in various applications, combines knowledge and technology to provide remote services that give our clients the data they require to make critical decisions and solutions to solve their problems.
Inspection and maintenance is critical to the performance and longevity of underwater infrastructures. As technology has evolved, inspections of these structures are possible with use of commercial divers and robotic vehicles. However, these methods may require costly shut down periods. As a result, ASI Marine has designed and built specialized sonar systems capable of collecting pertinent data in flow conditions.
Using advanced sonar technology provides accurate dimensional information regarding the structure condition and accumulated debris. It can be used to obtain 2D or 3D information of any underwater infrastructure or object, including flooded shafts, intake structures, spillways, dams and penstocks, all while under operational conditions providing important data showcasing what lies beneath the surface in a clear and precise graphic representation.
ASI Hydro’s underwater mapping services employs a combination of hydrographic, marine geophysical, and visual inspection techniques to conduct thorough underwater investigations. Using a combination of geophysical mapping and charting technology, ASI Marine is able to locate the submerged surface features and targets in question, addressed by clients. These findings are measured and mapped with precision accuracy in real-time. ASI Marine’s in-house certified hydrographers, cartographers and graphic specialists produce detailed technical reports (hardcopy and GIS compatible formats) utilizing geophysical data acquired during the underwater investigations allowing clients to make informed decisions for asset management and/or engineering purposes.
ASI Hydro’s personnel have both domestic and international experience with over 40 years of providing geophysical services. This, combined with ASI Marine’s extensive inventory of the latest geophysical equipment, enables us to provide a broad range of techniques to conduct any underwater investigation.
The suite of marine geophysical services available include:
Technologies used for ASI Hydro Geophysical and Hydrographic Services include:
Benefits of Sonar Surveys:
ASI Hydro’s hydrographic mapping services provide clients with a thorough underwater investigation of the conditions of rivers, estuaries, channels, lakes, harbour bottom surfaces and submerged infrastructure. A combination of geophysical mapping equipment and the latest charting technology enables us to locate and assess any submerged surface features and targets addressed by our clients. The findings are measured and mapped with precision accuracy in real-time.
ASI’s underwater mapping services include:
Side Scan Sonar
Sonar Profiling and Imaging Surveys
ASI Group provides a wide range of sonar technologies that enable data collection in high flow, highly turbid and hazardous environments. ASI’s Dual-Axis Sonar (DAS) system technology enables collection of critical underwater infrastructure data without the burden of costly downtime.
Benefits of Sonar Surveys:
Through our company DS Salvage we complement ASI Hydro services, supporting all activities that require commercial diving support.