Based on gate valve technology to cut and seal coil tubing, this CCV is equipped with horizontal hydraulically actuated single gate made to shear and seal coiled tubing and wire line of a given specification in the wellbore. A seal is made after the shearing, isolating the pressure/fluids from both upstream and downstream. The coil cutting valve is powered by accumulators and can be overridden via ROV manual over-ride.
Industry Standards
NAME | DESCRIPTION | REV |
API 6A / ISO 10423 | Specification for Wellhead and Christmas Tree Equipment (Latest Edition) | 20th Edition October 2010 |
API 17D / ISO 13628-4 | Specification for Subsea Wellhead & Christmas Tree Equipment (Latest Edition) | 2nd Edition May 2011 |
API 17G / ISO 13628-7 | Petroleum and natural gas industries- Design and operation of Subsea production systems-part 7: Completion / work over riser system | 2nd Edition July 2006 |
SAE AS4059 | Aerospace Fluid Power – Cleanliness Classification for Hydraulic Fluid (Latest Edition) | AS4059F September 2013 |
NACE MR0175 / ISO 15156 | Petroleum and natural gas industries- Materials for use in H2S-containing environments in oil and gas production | 2nd Edition July 2006 |
DNVGL-OS-E101 | Offshore standards, Drilling facilities | January 2018 |
Operating Specification
Pressure / Loading Criteria | Specification |
Maximum working pressure | 10,000 Psi |
Maximum Test pressure | 15,000 Psi |
Temperature / Design Criteria | Specification |
Temperature Rating | P+U |
Min. Design Temperature | -20° F |
Max. Design Temperature | 250° F |
Nominal bore size | 7 3/8” |
Drift Dia | 7.345 +.027/-.000 |
Shear Class | Coil Tubing and Wire line |
Material Class | EE-NL (or) Customer Requirement |
PSL Level | PSL-3G |
PR Level | 2 |
Operating Criteria | Specification |
Water depth | 10,000 FT |
Service Condition | H2S per NACE MR 01-75 |
ROV override turns to Close | 60-62 turns to Clock-wise |
Torque to operate override | 1900 ft-lbs |
Torque Bucket | Class 5 (2.0” sq) |
API Monogram | No |
ROV Override | Open to Close only |
Stroke | 9.75” |
NOTE: ROV MOR is not capable of shearing tubular
Hydraulic Data
Control Fluid Type | HW443 (or) Water based Glycol |
Control Fluid Cleanliness | SAE AS4059 CLASS 6B-6F |
Max. Hydraulic Working Pressure | 3,000 psi |
Max. Hydraulic Test Pressure | 4,500 psi |
Cylinder Volume | Open: 4.04 US GAL per one Actuator Close: 4.22 US GAL per one Actuator |
Compensator Fluid Type | BIOHYDRAN(2.6 US GAL APPROX) per one MOR |
Compensator Check valves (cracking pressure) | 50 psi |