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Intervention Workover Control System (IWOCS)

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Intervention workover control system (IWOCS) is one of the core equipment in deepwater oil/gas field development. It is mainly used for installation, recovery and
testing of subsea Christmas tree, tubing hanger and their auxiliary equipment, and is widely used in well completion and workover operations.
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DetailTypical Applications

Main Technical Parameters

1. Design service life: 15 years

2. Design and production standard: API 17F

3. Design condition: Marine environment, ambient temperature: -29 to 70 ¡ãC, hazardous environment of Class I, Zone 2, Group IIBT4

4. Water depth: 30 to 1,500 m

5. Pressure: 5,000 psi, 10,000 psi, 15,000 psi

6. Medium: Water-based hydraulic oil

7. Cleanliness class: Not lower than Class 6B-F in the SAE AS4059

8. IEC positive pressure explosion-proof certification

9. DNV 2.7-1 certification



Reference Standard

  • API-17D
  • AIP-17F
  • DNV2.7-1
  • SAE AS4059


Functions and Features

1. Equipped with hardware hot-standby redundant PLC system with highly stable and reliable performance;

2. Designed with multiple circuits and pressure levels to adapt to different on-site working conditions;

3. Compliant with the requirements of DNV2.7-1 and API 17F certification;

4. Well functioned to test and diagnose the pressure, flow rate, temperature, cleanliness, and blockage;

5. Suitable for testing, production, and both mobile and fixed types.











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