Oilfield Technical Inspection Sdn Bhd

OTI has also commenced Automated Ultrasonic Testing of offshore pipelines and has thus far completed testing of about 300 km with the acquisition of GE Weldstar Hybrid Systems. OTI is the first Malaysian NDT company to own Phased Array AUT system, and the only Malaysian NDT company to have completed a major offshore trunkline project.

GE Weldstar AUT, which OTI utilizes, is the latest generation pipeline girth weld inspection system. This is an automated ultrasonic testing (AUT) solution that provides all functionalities required for the job, from setup to data archiving. Combining conventional and Phased Array ultrasonics, this advanced inspection tool provides the benefits of both techniques without compromise.

GE Weldstar’s unique modular design with ultrasonic electronics located on the scanner head and the simple umbilical that can be changed quickly provides huge benefits in terms of almost negligible interruption to work.

The OmniScan family includes the innovative phased array and eddy current array test units, as well as the eddy current and conventional ultrasound modules.

The OmniScan MX offers a high acquisition rate and powerful software features in a portable, modular mainframe to efficiently perform manual and automated inspections.

OTI specializes in crawler X Ray radiography, which is widely used, especially for offshore pipelaying projects. OTI consistently executes between 10 – 15 offshore pipeline projects, every year.

OTI’s major strength in the formative years has been its capability to design, build, manufacture, service and maintain its own x-ray crawlers. Offshore pipeline NDT has taken OTI from Russian to Nigerian waters. With the current resources for conventional NDT, OTI can perform work concurrently on Ten (10) pipelaying barges.

OTI is one of the few companies worldwide whose possesses such technical capability. OTI’s range of X-Ray Crawler systems are capable of inspecting newly laid pipelines with 6” diameter to 72” diameter, both for onshore and offshore.

Most weldments of steel pipes in energy sector require some method of testing to determine the quality of the welding. A common method of testing is by radiographic examination. Radiographic testing aims to record images of flaws introduced into the welds. These could be process defects (e.g. porosity, lack of fusion) or stress-related conditions (e.g. cracks).

Radiographic inspection is carried out utilizing radioactive sources such as Ir-192, Se-75 or Co-60 and also with X-ray irradiating apparatus. Our technicians are highly experienced not only in the use of these radioactive sources and X-Ray equipment but also take pride in holding a clean safety record on all projects undertaken.

UT inspection is carried out on configurations of welds, whereby due to geometry and restricted access to either side of the area to be inspected, radiographic examination cannot be done, or where UT is known to exhibit better detection capability. An ultrasonic wave is sent into the material and the reflected wave is then analyzed. Flaws can be recognized by trained personnel on the instrument screen and the features of the flaw (like location, orientation, length depth and height) of the flaw can then be identified and assessed.

This method of inspection holds advantages of detecting defects such as lamination and fusion-related defects for which radiographic examination is known to have low probability of detection.

This technique of inspection is suitable for detecting surface and sub-surface defects. Only ferromagnetic materials can be tested with this technique.

An energized yoke is used to create a magnetic field by temporarily magnetizing the component to be tested. While magnetization is going on, a magnetic medium is applied. Any imperfections or defects will create a disturbance to the magnetic field flow and a distinctive pattern will be formed at the defect location which will make it visible.

This method of testing is suitable for detecting defects open to the surface only and on any material that is essentially non-porous. A bright colored penetrant or a fluorescent ink is sprayed on the surface of the component to be inspected. The penetrant will be drawn into any surface imperfections or cracks. After the excess penetrant is removed, a thin layer of developer is then applied. The penetrant will then be drawn out of the defects, and made visible with use of visible light or ultraviolet light, as appropriate

Our company also provides other methods of inspection such as UT Thickness Gauging, Hardness Testing and Holiday Detection.

Besides testing services, we also offer third party engineering inspection, quality assurance, quality control and certification services.

Our dedication to continually enhance customer satisfaction has brought us to the forefront in resourcing business. As a service oriented company, we are well aware of the importance of Quality Assurance.

For the past few years since inception in Year 2005, we have been supplying the International Oil, Gas and Energy industry with professional personnel. We have been providing the services to most of the reputable multi-national Companies all over the world; for various projects involving Oil & Gas industry, Power sector, Ship Building/Repair & other Engineering Industries.