7 3/8-10K Wireline Cutting Valves / Fail Closed(FSC)
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Detailed Specifications & Operational Features
Based on gate valve technology to cut and seal wireline / slickline, this product is equipment with a hydraulically-actuated gate made to shear and seal wireline / slickline of a given specification in the wellbore. A seal is made after the shearing, isolating the pressure/fluids from both upstream and downstream. The wireline / slickline cutting valve is powered by accumulators and can be overridden via ROV manual over-ride.
The WOM wireline cutting valve is actuated by fail-safe close actuator and spring force is used in cutting of wireline. In addition to spring force, hydraulic pressure can be used for assisting while closing of valve.
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 | Wireline and Slickline |
| 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
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: 3.14 US GAL Close Assist: 2.74 US GAL |
| Compensator Fluid Type | BIOHYDRAN(2.6 US GAL APPROX) per one MOR |
| Compensator Check valves (cracking pressure) | 50 psi |
Shear Test Performed
Items listed in the below table are the dimensions of samples that were sheared by Wireline Cutting valves
| CUTTING SAMPLE |
| 0.464 Wireline (21K breaking strength) |
| 0.372 E-line (2-37AZ17 MP35N) 1 strand |
| 0.372 E-line (2-37AZ17 MP35N) 3 strand |