Services · Robotic and AI-Assisted Inspection
Pipeline RT Crawlers (TCR-Owned)
Saudi Aramco Engineering Report SAER-13115, dated 8 September 2025, names TCR as the technology provider.
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In brief
TCR Engineering owns and operates a pipeline crawler fleet, developed in-house, that radiographs girth welds from inside the pipe. Saudi Aramco Engineering Report SAER-13115, dated 8 September 2025, names TCR as technology provider for the Internal RT Crawler on 16 inch to 52 inch lines. The fleet works from India and from TCR Arabia, the Saudi joint venture.
Saudi Aramco Internal RT Crawler
Saudi Aramco Engineering Report SAER-13115, dated 8 September 2025, names TCR as technology provider for the Internal RT Crawler, which radiographs girth welds in 16 inch to 52 inch pipelines from inside the bore. Its Radiographic Standard Procedure, TCR.QCP.REV-02 (2023), is Saudi Aramco approved and conformant with SAEP-1143 (Engineering Procedure for Radiographic Examination, 6 September 2020).
| Specification | Value |
|---|---|
| Diameter range | 16 inch to 52 inch |
| X-ray heads | 160, 200, 300 kV at 5 mA |
| Positioning accuracy | ±5 mm |
| Operating temperature | minus 10 to plus 70 degrees Celsius |
Robotic Pipeline Inspection Track Record
TCR's pipeline record spans 14,000+ girth welds radiographed across 2,600+ km of cross-country mainline, on 20+ named projects with 15+ master contractors, in India, Saudi Arabia and across the border in Nepal. The crawler fleet is one of the TCR-owned platforms in its robotic and AI-assisted inspection practice, serving pipeline and city gas owners.
- 14,000+ pipeline girth welds radiographed across 2,600+ km of cross-country mainline (see Pipeline Radiography).
- 9,266 weld joints digitally scanned and cloud-archived on a single project (EnProCon TJTC Kolar).
- 20+ named cross-country pipeline projects with 15+ master contractors.
- Cross-border deployment outside the GCC: Nepal Oil Corporation MAPL Phase II via Likhitha Infrastructure under Nepal Oil Corporation permission Ref 2080/81 dated 30 July 2023.
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Frequently asked questions
What pipe sizes does the Internal RT Crawler inspect?
The Saudi Aramco-approved Internal RT Crawler covers pipeline diameters from 16 inch to 52 inch, carrying X-ray heads rated 160, 200 and 300 kV at 5 mA. Positioning accuracy is plus or minus 5 mm, and the crawler operates from minus 10 to plus 70 degrees Celsius.
Is the RT Crawler approved by Saudi Aramco?
Yes. Saudi Aramco Engineering Report SAER-13115, dated 8 September 2025, names TCR as the Internal RT Crawler technology provider. Radiographic procedure TCR.QCP.REV-02 is conformant with SAEP-1143, the Aramco engineering procedure for radiographic examination.
What cross-country pipeline track record supports the crawler fleet?
TCR has radiographed 14,000+ pipeline girth welds across 2,600+ km of cross-country mainline, spanning 20+ named pipeline projects with 15+ master contractors. On a single project, EnProCon TJTC Kolar, 9,266 weld joints were digitally scanned and cloud-archived. The crawler fleet sits at TCR Engineering and TCR Arabia.
Has the RT Crawler worked outside the GCC?
Yes. A cross-border deployment outside the GCC: Nepal Oil Corporation's MAPL Phase II, executed via Likhitha Infrastructure under Nepal Oil Corporation permission Ref 2080/81 dated 30 July 2023. The fleet, developed in-house at TCR, operates from both TCR Engineering in India and TCR Arabia in Saudi Arabia.
How does an internal RT crawler inspect a pipeline girth weld?
The crawler travels inside the pipeline to each girth weld and makes the exposure from within the bore, with the film or detector placed outside the weld. Each radiograph is assessed against the project's acceptance code, such as API 1104, and on Saudi Aramco work under procedure TCR.QCP.REV-02.