Sample interview questions: Can you explain the process of pipefitting for offshore or marine oil and gas extraction systems?
Sample answer:
Offshore Pipefitting Process for Oil and Gas Extraction
1. Pre-fabrication:
- Designs are reviewed and material specifications are determined.
- Pipes are cut, beveled, and prepared for welding.
- Spool pieces (pre-assembled sections of pipe) are fabricated in onshore facilities or on specialized offshore platforms.
2. Offshore Installation:
- Spool pieces are transported to the offshore site and lifted into position using cranes or barges.
- Pipe supports and clamps are installed to secure the piping system.
- Alignment and leveling instruments are used to ensure precise connections.
3. Welding:
- Welders use specialized techniques, such as Tungsten Inert Gas (TIG) or Submerged Arc Welding (SAW), to join the spool pieces together.
- Welds are inspected and tested to meet stringent quality standards.
4. Hydrostatic Testing:
- The piping system is filled with water and pressurized to test for leaks and ensure integrity.
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Source: https://hireabo.com/job/12_0_6/Pipefitter