The PetroQuip Dual Line Valve (DLV™) sliding sleeve is used to control communication between the annulus and the tubing remotely. This hydraulic actuated sliding sleeve mounted on the production tubing allows hydraulic shifting from surface, which eliminates the need for costly interventions. The DLV is opened and closed by pressuring up on one control line while displacing control line fluid up the second line.
DLV™ Sliding Sleeve
- Patented seal and seal stack design enables industry-leading maximum pressure differential
- Non-elastomeric seals
- 7,500 psi shifting differential unloading
- Shifting from the surface, eliminating wellbore intervention
- Proprietary metal to metal threads
- Large flow area minimizing erosion
- N+1 configuration, common close feature
- Optional customized bypass slots
| Tubing Size | Max OD | Landing Profile ID | OAL | Material Yield Strength | Burst/ Collapse Pressure Rating | Max Temp. | Flow Thru Ports |
| (in) | (in) | (in) | (in) | (KSI) | (psi) | (deg. F) | (in) |
| 2 7/8 | 4.500 | 2.188 | 94.9 | 80 | 10,000 | 350 | 11.2 |
| 2 7/8 | 4.500 | 2.313 | 94.9 | 80 | 10,000 | 350 | 11.2 |
| 3 1/2 | 4.955 | 2.562 | 96.5 | 80 | 10,000 | 350 | 12.3 |
| 3 1/2 | 4.955 | 2.750 | 96.8 | 80 | 10,000 | 350 | 12.3 |
| 3 1/2 | 4.955 | 2.813 | 96.8 | 80 | 10,000 | 350 | 12.3 |
| 4 1/2 | 6.530 | 3.813 | 125 | 80 | 10,000 | 350 | 26.9 |
| 5 1/2 | 7.560 | 4.562 | 109 | 80 | 10,000 | 350 | 21.1 |