SUBSEA TESTING
Balmoral Subsea Test Centre
Hydrostatic, mechanical, wave/tidal and laboratory testing
Comprehensive subsea testing
The Balmoral Subsea Test Centre is the industry’s most comprehensive, accessible and commercially available hydrostatic and mechanical testing center, catering to the subsea, renewables, defence and oceanographic sectors.
Equipped with state-of-the-art technology and staffed by experienced technical professionals, we offer testing services that ensure the highest standards of safety, reliability and performance.
The facility is designed to accommodate a wide range of testing requirements, from small-scale components to larger, more complex assemblies, providing clients with the confidence and assurance they need for critical projects.
Substantial investment has been made in improving and expanding the Balmoral Subsea Test Centre which is now the most comprehensive commercially available hydrostatic test facility in Europe.
23 vessels, ranging from 1010mm (3’3”) to 10,400mm (35’6”) in length, with internal diameters of 360mm (14”) to 2500mm (98”) and pressures to 700bar, allow us to perform testing to ensure subsea components are qualified for use in deepwater environments reaching depths of 7000msw.
5, 20 and 40 tonne lifting cranes, remote monitoring software and procedures are in place offering independent testing for all types of subsea equipment.
Standard tests include:
- Uplift determination
- Water ingress
- Instrumented buoyancy loss
- Hydrostatic compression and creep
- Hydrostatic collapse
- Bulk modulus
- Buckle arrestment performance
- Subsea controls testing
- Valve testing
The hydrostatic vessels use air driven liquid pumps and can accommodate electric, hydraulic and instrumentation connections. Each vessel can be fitted with chart recorders, pressure and temperature data loggers that provide highly detailed results for analysis, while a computer controlled hydrostatic test system that automatically performs customisable tests using high capacity intensifier pumps via touch screen is available on vessels TC1, 2 and 3. This allows pressure and temperature data to be fed back to a networked server providing remote real-time test monitoring.
A pan and tilt subsea camera can be placed in the vessels to visually monitor tests when required.
Vessel | Orientation | Internal length mm / ft in |
Internal dia mm / ft in |
Safe working pressure psi / bar |
Fresh water temp ºC | Penetrator qty | Penetrator ID mm |
Crane capability Tonnes |
---|---|---|---|---|---|---|---|---|
TC1 ![]() |
Vertical | 8,970 / 29' 5" | 2,500 / 8' 2" | 6,880 / 475 | Ambient | 8 | 100 | 40 |
TC2 ![]() |
Vertical | 7,010 / 23' | 1,800 / 5' 10" | 6,880 / 475 | Ambient to 50 | 2 | 100 | 40 |
TC3 ![]() |
Vertical | 7,200 / 23' 7" | 1,830 / 6' | 5,940 / 410 | Ambient | 2 | 80 | 40 |
TC4 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC5 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC6 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC7 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC8 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC9 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 7,680 / 530 | Ambient | 2 | 60 | 40 |
TC10 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient | 2 | 60 | 40 |
TC11 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient | 2 | 60 | 40 |
TC12 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient | 2 | 60 | 40 |
TC13 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient | 2 | 60 | 40 |
TC14 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient to 50 | 2 | 60 | 40 |
TC15 ![]() |
Vertical | 2,500 / 8' 2" | 500 / 1' 7" | 10,150 / 700 | Ambient to 50 | 2 | 60 | 40 |
TC16 | Horizontal | 10,400 / 34' 1" | 1,320 / 4' 3" | 5,910 / 358 | Ambient | 2 | 70 | 12 |
TC17 | Vertical | 5,000 / 16' 5" | 1,520 / 4' 11" | 1,390 / 96 | Ambient | 2 | 60 | 12 |
TC18 | Vertical | 6,000 / 19' 8" | 1,570 / 5' 1" | 2,240 / 155 | Ambient | 2 | 60 | 12 |
TC19 | Vertical | 7,000 / 22' 11" | 1,570 / 5' 1" | 6,380 / 440 | Ambient | 2 | 60 | 12 |
TC20 | Vertical | 2,380 / 7' 9" | 482 / 1' 7" | 10,150 / 700 | Ambient | 3 | 25 | 12 |
TC21 | Vertical | 2,380 / 7' 9" | 482 / 1' 7" | 10,150 / 700 | Ambient | 3 | 25 | 12 |
TC22 | Vertical | 2,380 / 7' 9" | 482 / 1' 7" | 10,150 / 700 | Ambient to 50 | 3 | 25 | 12 |
TC23 | Vertical | 1,010 / 3' 3" | 360 / 1' 2" | 5,940 / 410 | Ambient | 1 | 50 | 12 |
Balmoral’s multi-purpose load rig performs the following test-types and is available for third party use:
- Axial and lateral slip loads to 60t
- Static loading and 3-point bend to 100t
- Bend restrictor/stiffener load to 10t
- Bend restrictor locking radius measurement under load
- Compression and shear testing on companion cylinders to 200t and tensile testing to 150t
- Dropped weight and swing arm impact testing
- Lifting point/insert load testing
A fully comprehensive test rig for offshore wind‐related products comprises winches, tower, monopile and J‐tube entry options designed to simulate subsea interfaces and varying installation parameters.
Routine testing includes bending and axial stiffness, load, curvature, axial, operational and safety performance.
Component | Test | Load | Reasons |
---|---|---|---|
Standard dynamic unit (SDU) | Tension | 100%; 150%; Destruction | To confirm axial stiffness and operational safety factors are accurate and validated. Precise axial stiffness numbers are vital for accurate global analysis. |
Standard dynamic unit (SDU) | Bending and curvature | 100%; 150%; Destruction | To confirm bending stiffness and operational safety factors are correct and validated. Precise bending stiffness numbers are vital for accurate global analysis. Curvature is also analysed using laser measurement to ensure cable MBRs are maintained. |
Inline bend restrictors | Bending | 100%; 150% | Validates the structural strength of bend restrictors. |
Articulated pipe | Bending/tension | 100%; 150% | Validates the structural strength of articulated pipe. |
Foundation Interface Device (FID) | Bench top activation testing | Design loads | Validates activation loads are as designed and operation of the FID is flawless and repeatable. A critical test verifying the robustness and activation consistency of the most critical CPS component. |
Full cable protection system (CPS) | Cable installation test | Optimised pull-in characteristics | Determines effective tow-in and tow-out parameters for the CPS to engage with a monopile and/or J-tube entry system. |
Full cable protection system (CPS) | Cable installation test | Limit state pull-in characteristics | Determines the extreme limits of tow-in and tow-out parameters for the CPS to engage with a monopile and/or J-tube entry system. These consider aperture heights from 1.5-4.5m above seabed, with vessel positions 15-50m away from the aperture. Simulated water depths of 7.5-12.5m. Entry hole angles from seabed of 30-50˚ and entry angles from aperture hole of ±25deg. |
Balmoral Comtec's Wave and Current Simulation facility offers third parties the opportunity to test and validate offshore wind, solar, and subsea systems under dynamic water conditions. The facility supports applications across renewable energy, oil and gas, and marine industries.
- £1 million state-of-the-art facility, partially funded with Energy Transition Zone (ETZ) Ltd, at Balmoral Park in Aberdeen
- The facility can simulate surface, subsea and seabed conditions, making it ideal for evaluating offshore wind, solar and other subsea systems under dynamic water conditions
- The facility is available to third parties, offering a unique opportunity for operators and developers to test and validate their technologies in a controlled environment
- The facility is also suitable for broader applications in renewables, oil and gas and other marine industries
Due to the complexities of bespoke project testing, stringent customer specifications and compliance to standards such as API 17L1, Balmoral continually invests in state-of-the-art laboratory test equipment to ensure these requirements are satisfied. This programme of investment ensures the company retains total control over time schedules, test conditions and methodologies used to fulfil customer requirements.
Balmoral’s technical team works from the company’s new custom designed and purpose built laboratories at company HQ in Aberdeen – a state-of-the-art temperature and humidity controlled environment that is fully furnished with a wealth of chemical, thermal, hydrostatic and mechanical test equipment.
- A range of universal testing machines (10 tonnes maximum load) capable of performing fatigue, tensile, compression, flexure and hydrostatic pressure testing using a complementary pressure vessel at temperatures of -70ºC-+350ºC
- Dynamic fatigue test equipment for testing polyurethane materials fully submerged at elevated temperature
- Differential scanning calorimeters for determining specific heat capacity, glass transition temperatures and oxidation induction time of polymer products
- Lasercomp Fox 50 thermal analyser for the determination of thermal conductivity
- Gas pyknometers for determining the true density of materials such as powders and gels
- Temperature controlled water ageing baths
- Hydrothermal ageing cells for long term analysis of materials up to 260ºC
- Laboratory scale pressure vessels capable of operating at sub-ambient temperature to
- 200ºC and up to 10,150psi, 700bar
- Temperature and humidity environmental cabinets
- UV weathering cabinet
- Karl Fischer titrator for determination of water content
- Automated titrators for quantitative analysis
- Lab scale CNC machine for test piece preparation
Submersion test tanks are available for the following procedures:
- Product weight in water and air
- ROV submersion and functionality
- Submersion and gas leakage
- Underwater NDT inspection
- Flotation
- Riser testing
- Abandonment and cutting tool trials
- Stack up trials
Tank | Length mm / ft in |
Width mm / ft in |
Depth mm / ft in |
Fresh water temp ºC | Crane capability Tonnes |
---|---|---|---|---|---|
Test tank 1 | 6,500 / 21' 3" | 3,500 / 11' 5" | 4,000 / 13' | Ambient | 40 |
Test tank 2 | 6,600 / 21' 6" | 2,300 / 7' 5" | 2,200 / 7' 2" | Ambient | 12 |
Test tank 3 | Ø9,000 / 29' 6" | Ø9,000 / 29' 6" | 4,500 / 14' 9" | Ambient | - |
State-of-the-art facilities
Testing for streamlined projects
We have installed our own wave and current tank, allowing us to carry out testing in-house for every scour protection project. We are the only scour protection system manufacturer to have this capability in-house, saving time and increasing certainty for your projects.
Frequently asked questions
The Balmoral Subsea Test Centre is a fully comprehensive facility that carries out long and short term hyperbaric testing to pressures of 700bar as well as offering mechanical and submersion tests on all types of equipment from the smallest oilfield valve to the largest buoyancy modules. The facility includes overhead craneage of up to 40 tonnes.
A future-proof facility
With greater emphasis being placed upon the move from fossil fuels to renewable energy – especially offshore wind, marine and tidal power – the test centre is more than capable of servicing these sectors.
Talk to our leadership team about your project today
Whatever your project needs, we can work together to deliver project certainty.