Oil & Gas
Oil & Gas
Some of our relevant subsidiaries:
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ADR designs and manufactures high-precision ball bearings in a wide range of sizes (from 1 mm in bore size to 330 mm in outside diameter).
These highly sensitive bearings are found in viewfinders, gyro-stabilized systems, optoelectronic and avionics equipment, infrared pointers, encoders, motors, etc.
As a subsystems developer, ADR develops and offers integrated technical solutions, incorporating a variety of different functions to the bearings.
ADR also designs and produces actuators specifically adapted to highly complex systems.
- Website
- Contact
- Location on map
- +33 1 64 70 59 50
ADR on ALCEN's website
Defense & Security Mechanical & electronic components
Energy Oil & Gas
Aeronautics & Space Mechanical components
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ALSEAMAR designs, manufactures and operates naval and underwater products (subsea gliders, unmanned surface vehicles, swimmer delivery vehicles, underwater acoustic positioning equipment, naval radio communication systems, deep-water pure syntactic foam buoyancy products) and is a provider of numerous services (underwater and marine monitoring, inspection, maintenance and upgrade of naval weapon systems, training, and more).
ALSEAMAR's commitment to its customers relies on the high skills and reactivity of its roughly 100 members of personnel, including over 50 engineers and 30 senior technicians, ready to be mobilized for projects around the world.
Main Product Lines
- Subsea and surface robotics
- Radio frequency communications
- Subsea passive acoustics
- Subsea vehicles for divers
- Deep-water syntactic foam buoyancy materials
Main Services
- Life-extension services for orphan and/or aged naval systems
- Marine survey services using subsea gliders and unmanned surface drones
- Localization of aircraft or submarine black boxes in the event of an accident at sea
- Training and instruction
ALSEAMAR on ALCEN's website
Defense & Security Naval & Submarine
Defense & Security Engineering, Maintenance & Services
Energy Oil & Gas
Aeronautics & Space Engineering & Maintenance
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Bringing together the expertise and means of four ALCEN subsidiaries, ALSYMEX offers its clients solutions and services with high added value:
- Feasibility studies
- Engineering: machining, welding, vacuum
- Detailed design: mechanical engineering, thermo-mechanics, seismicity, vacuum, optics
- Production of high-precision mechanical and optomechanical assemblies: boilerwork, joint welding, machining
- Integration of complex systems in ISO 5 to ISO 8 cleanrooms
- Non-destructive testing
- On-site installation
- Maintenance of mechanical, optomechanical, vacuum and high voltage systems for large scientific instruments and nuclear-capable sites
- Large program management
ALSYMEX operates in the fields of Defense, Energy, Aeronautics and Large Research Infrastructures.
- Website
- Contact
- Location on map
- +33 5 56 13 84 44
ALSYMEX on ALCEN's website
Defense & Security Engineering, Maintenance & Services
Defense & Security Mechanical & electronic components
Energy Nuclear
Energy Engineering, Maintenance & Services
Energy Oil & Gas
Aeronautics & Space Engineering & Maintenance
Aeronautics & Space Mechanical components
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Under the BMTI brand, ALSEAMAR develops, manufactures and sells pure syntactic foam for subsea buoyancy applications at extreme depths (1,000 to 12,000 m). This material made from glass and epoxy resin microspheres is able to conserve high level properties even after demanding subsea use: immersion in seawater, hydrostatic pressure of several hundred bar, immersion in sometimes unstable temperatures and for long periods of time.
With its proprietary formulas and special manufacturing processes, BMTI knows how to distinguish itself by offering different grades of world-class syntactic foam: low or very low density even in deep waters, enhanced mechanical properties, thermal stability if required, etc.
BMTI has developed unique and integrated testing equipment and procedures in house to guarantee high-performance buoyancy products: permanent floats with several tonnes of thrust for oil and gas, buoyancy modules for ROVs and AUVs, buoyancy for subsea tools, etc.
Our production equipment enables us to be highly responsive and able to maintain the whole float manufacturing chain, which is an important advantage in this sector.
Visit the website
117 rue d’Ollioules
ZA La Millonne
83140 Six Fours
France- +33 4 94 87 07 77
- Contact by email
- BMTI's website
- View location on map
BMTI on ALCEN's website
Energy Oil & Gas
Ball Bearings for Harsh Environments
ADR designs and manufactures a wide range of precision ball bearings that meet the most demanding technical specifications in order to provide innovative solutions in the mechanisms of various fields, such as Chemistry, Nuclear, Oil & Gas, Vacuum, etc.
The materials, liquid or solid lubricants and manufacturing processes are qualified and field proven. The range of bearings is extensive: from 1 to 330 mm. ADR selects the most appropriate materials, such as stainless steels, ceramics, superalloys, etc., at the design stage.
These solutions guarantee reliability, strength and longevity in aggressive environments.
Marine Surveillance Services
ALSEAMAR uses innovative surface drones and subsea gliders for independent observation of the marine environment.
These turnkey services are used to collect and analyze data for a wide range of missions: scientific research, oceanography, marine environment protection, water quality monitoring, recording of ambient noise, intervention for hydrocarbon leaks, detection of natural gas or oil leaks, baseline studies and metocean operations for oil operators.
The SeaExplorer subsea glider is a detection platform perfectly suited to these operations. A high-endurance, autonomous subsea drone, it was designed to collect data over large areas (thousands of kilometres), over long periods (months) and at great depths (1,000 m) thanks to the integration of a wide range of specific sensors.
Controlled from land, propelled by variations in buoyancy, the vehicle glides silently along the water column collecting physical, chemical, biological and/or acoustic data, depending on the mission assigned.
The added value of the SeaExplorer lies in the low operation cost compared to the vessels or other means traditionally mobilized for the same type of mission.
Cryogenic Mechanics for LNG
ALSYMEX designs, manufactures and assembles parts and subassemblies intended for cryogenic applications.
ALSYMEX manages the entire industrial chain:
- Traceability of supplies
- Management of certification 3.2
- Qualification of materials for cryogenics
- Management of three-dimensional inspection
- Assemblies and testing of parts in accordance with specific inspection and test plans defined by clients
Power Generation Systems
ALSYMEX designs and manufactures autonomous, all-in-one assemblies for generating and controlling a flow rate under variable pressure in order to coordinate tools such as winches and connectors in restrictive environments where efficiency, compliance with environmental standards and ease of use are required.
Syntactic Foam
The light and robust syntactic foam blocks sold under the BMTI® brand offer top buoyancy performance. They are ready to use, be fitted or cut to size, and can be glued together to form larger structures.
BMTI® syntactic foam benefits from many years of experience in design and manufacturing. Its high standards of performance, the possible integration of metallic inserts and the protective coating applied make this product a long-lasting one.
It is used to manufacture buoyancy modules installed on ROVs (remotely operated underwater vehicles) and on AUVs (autonomous underwater vehicles), as well as buoyancy modules mounted on deep oilfield equipment.
The properties making up BMTI® syntactic foam make it the least dense on the market for depths ranging from 1,000 to 12,000 m, while at the same time guaranteeing the best mechanical and durability properties.
BMTI® syntactic foam is available in standard blocks or in made-to-measure buoyancy modules.
