6 3/8-15K Safety Head (Compact Cutting Device)
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Detailed Specifications & Operational Features
Hydraulically operated, compact, shear and seal valve designed with high cutting performance and reliable post-cut sealing
This CCD is designed with opposing horizontal hydraulically actuated gate valves made to shear coiled tubing, drill pipe, and wire line of a given specification in the wellbore and seal from below. A seal is made after the shearing, isolating the pressure/fluids beneath the CCD. It is used in offshore and/or high-pressure applications where cutting of the well string is required without leaving a snag. The device is powered by accumulators and can be overridden via ROV hot stab in either direction.
With a reduced package size, our CCD can be easily transported and installed using economic methods, reducing overall time and costs for subsea projects.
The gate valves are fail-as-is. The external position indicator will show where the gate valve positions are at all times. A locking mechanism prevents the gates from creeping back after they have closed. In case of a failure, an override tool may be used to open or close the CCD. This override tool is ROV actuated.
- 6-3/8” Bore, 15 KSI parallel cutting and sealing gate valve design.
- Unidirectional coiled tubing cutting valve with recirculation capability.
- Demountable actuators to facilitate in-situ maintenance.
- Compact Design
- Separate cutting and sealing components in a single device.
| Design Data | |
| Nominal Bore Diameter | Ø6 3/8” |
| Design Wellbore Pressure |
Working: 15,000 psi. Test: 22,500 psi. |
| Design Standard | API 17G & NORSOK D-002 |
| Temperature Class (Design) | P+U (-20°F to 250°F) |
| Service | H2S -IN accordance with NACE MR0175 |
| Drift Dia. | 6.345 +.027/-.000 |
| Design Life | Min. 20 years |
| Product Specification Level | PSL-3G |
| Shearing Class | Wireline/Coiled Tubing |
| Performance Data | |
| Maximum Hydraulic Pressure | 5,000 psi |
| Cylinder Volume (Total, Approx.) | Open: 5.45 US gal (20.63 liters) Secondary Open: 5.45 US gal (20.63 liters) Close: 5.77 US gal (21.86 liters) Secondary Close: 5.77 US gal (21.86 liters) |
| Locking Piston Volumes | Lock: 0.091 US gal (0.348 liters) Unlock: 0.019 US gal (0.072 liters) |
| Control Fluid Type | HW443 (or) Water based Glycol |
| Validation Level | |
| Design Validation Level | API-17G (3rd Edition- Ballot) |
| Certification | DNV-OS-E101 Cat. 1 |