PDV-M 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”.
Besides, the device joint shoe can be used to ensure sealed joint with a liner “head” and if required
to build up a liner to fix the leaks above the liner “head”.
The device is RIH on drill pipes and is actuated by the partial tool weight unload. The disconnection
is performed automatically at under tension over own weight more than 5 tn
| PARAMETER DESCRIPTION | VALUE | ||
|---|---|---|---|
| PDV-M. 102 | PDV-M. 114 | PDV-M. 127 | |
| Liner nominal diameter equipped with the device, mm |
102 | 114 | 127 |
| Maximum outer diameter of the device, mm | 122 | 140 | 149 |
| Drift diameter of the device, mm | 89 | 99 | 111 |
| Minimum load for the packer actuation, kg | 5000 | ||
| Maximum tension for disconnection, kg | 5000 | ||
| Maximum tensile force1 , kN |
600 | 700 | 800 |
| Maximum pressure differential between the zones isolated by a hydro-mechanical packer, ΔP, MPa |
15 | ||
| Length of the device fully assembled, mm | 1430 | 1485 | 1720 |
| Device weight, kg, not more | 37,4 | 64 | 77,4 |
| Maximum operating temperature2 , C° |
100 | ||
| Connecting threads: – top according to GOST 28487-90 – bottom according to TU 14-161-163 |
ОТТМ 102 З-102 |
ОТТМ 114 З-102 |
ОТТМ 127 |
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
