Delivering inspection services for marine and offshore assets, including subsea structures, offshore modules, pipelines, vessels, and corrosion-prone infrastructure. Experience includes Subsea 7 projects, offshore PetroSA developments, marine corrosion inspections, and fabrication support for offshore oil and gas projects.
Our Experience in the Marine Industry
Since 1980
De-Tect Unit Inspection’s origins trace back to some of South Africa’s most significant industrial and energy infrastructure projects. The company was actively involved in construction-phase NDT and inspection services for the Sasol Synfuels plants in Secunda, Koeberg Nuclear Power Station, Africa’s only nuclear power plant, Kendal Power Station Units 5 and 6, as well as the Mossgas onshore refinery and offshore FA platform (now operated as PetroSA).
These projects included pre-service inspections for the nuclear sector, followed by long-term in-service inspection and maintenance programmes. Many of these relationships continue today, including ongoing work at Sasol Synfuels and Koeberg Nuclear Power Station.
1998 - 1999
De-Tect Unit Inspection was awarded a major contract at Koeberg Nuclear Power Station, taking full responsibility for project management and execution of comprehensive inspection scopes. These included manual ultrasonic testing, surface inspections, flow accelerated corrosion assessments, repair and replacement programmes, snubber testing, as well as marine and civil corrosion inspections.
During this period, De-Tect strengthened its strategic position by entering into an association agreement with Rotek Engineering (Pty) Ltd and securing additional contracts for inspection and testing services at Koeberg.
De-Tect also successfully executed the Inspection, NDE, and Testing scopes for Outages 110 and 210 within strict time constraints, achieving exceptionally low radiation exposure levels.
Beyond the nuclear sector, the company completed all ultrasonic inspection work on fabricated components for the Mossgas / Dresser Kellogg (Bredasdorp alliance) E-M field development expansion programme, along with surface inspection work on the R01 module and PLEM structure on the West Coast.
In addition, De-Tect demonstrated innovation by designing and manufacturing a cost-effective ultrasonic manipulator for the inspection of cast riding rings on cement kilns for PPC Cement.
2006
De-Tect Unit Inspection, in collaboration with Oceaneering Unit Inspection, was recognised with the Contractor of the Year Award (2005/2006) at Sasol Synfuels, standing out among approximately 2,500 suppliers.
The company continued to expand its international and high-profile project portfolio, successfully completing an NDT assignment for Alstom UK, and forming part of the Alstom South Africa team on the Koeberg Unit 1 turbine recovery project. This project included 100% radiographic inspection of all repair and replacement components.
At Koeberg Nuclear Power Station, De-Tect provided personnel for the successful execution of Ultrasonic, Surface, and Radiography scopes during Outage 215, completing all work within strict timeframes, with zero incidents and full compliance with quality and safety requirements.
The company also delivered NDT services across a range of industrial clients, including assignments for Arya Sasol Polymer Company, as well as planned shutdowns at Sasol Synfuels and Mittal Steel.
In the offshore and marine sector, De-Tect successfully deployed advanced LORAD radiography systems (X-ray and gamma) at Belmet Marine for the Subsea 7 project for PetroSA, as well as subsequent work on an ExxonMobil project. These projects included ultrasonic node inspections and surface inspections on subsea modules and piping systems.