PDV-2 device is applied for hermetic connection with a liner “head” run in with the help of
hangers PHCZ-type and for additional sealing of a liner “head”.
The device is RIH on drill pipes and is actuated with the partial drilling string weight unload.
The disconnection is performed automatically by a drill string pulling out.
| PARAMETER DESCRIPTION | VALUE | ||
|---|---|---|---|
| PDV2. 102/146 | PDV2. 114/168 | ||
| Liner nominal diameter equipped with the device, mm |
102 | 114 | |
| Maximum outer diameter of the device, mm | 122 | 140 | |
| Drift diameter of the device, mm | 89 | 99 | |
| Minimum load for the packer actuation, kg | 5000 | ||
| Maximum tension for disconnection, kg | 5000 | ||
| Maximum tensile force1 , kN |
600 | 600 | |
| Maximum pressure differential between the zones isolated by a hydro-mechanical packer, ΔP, MPa |
15 | ||
| Length of the device fully assembled, mm | 1724 | 1920 | |
| Device weight, kg, not more | 62 | 95 | |
| Maximum operating temperature2 , °C |
100 | ||
| Connecting threads: – top according to GOST 28487-90 |
З-86 | З-102 | |
1
Calculated value when stresses reach yield point of the material.
2
Reference only, depends on operating conditions of general mechanical rubber goods in a well.
