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Noncemented liner hanger PHN2

Liner Hangers

Noncemented liner hanger PHN2

The PHN2 liner hanger is used to RIH and hang non-cemented liners. PHN2 liner hanger consists of 4 functionally independent parts:

  • anchor to hang the liner assembly in the casing string;
  • mechanical packer to isolate annular space;
  • hydraulic release mechanism that allows to RIH liner assembly, circulate, activate anchor by hydraulic pressure, activate packer mechanically and, then, disconnect the drill string from PHN2 by applying hydraulic pressure.
  • mechanical release to back up a hydraulic disconnection mechanism.

Design of PHN2 is practically identical to that of hydro-mechanical cemented liner hanger – PHGMC, except a landing seat installed at the bottom part of the mandrel. Liner hangers PHN2.114/168, PHN2.127/178 and PHN2.127/178-114 are produced in UIF (unit of isolation of filters) configuration, which allows to perform circulation through the shoe.



PARAMETER DESCRIPTION VALUE
PHN2.102/140 PHN2.102/146 PHN2.114/168
Liner nominal OD, mm 102 102 114
Casing nominal OD, mm 140 146 168
Maximum anchoring casing ID, mm (117) 120 (122) 138 (141)
Maximum tool OD (at centralizer), mm 85 89 99
Drift ID (after activation), mm 127 132 132
Values of differential activation pressures1 , MPa
- anchor
- hydraulic disconnection device 		14
20
Load on packer for activation, kN 150
Maximum differential pressure between the zones isolated by a packer unit, MPa 30
Maximum operating temperature2 , °C 100
Maximum axial tensile load on disconnection3 , kN 600 600 700
Connecting threads4 :
- top GOST 28487 (GOST R 50864)
- bottom GOST 632-80 		Z-86
ОТТМ 102 		Z-102
ОТТМ 102 		Z-102
ОТТМ-114
Length in operating position, mm 3612 3834 3810
Weight in operating position, kg 108 135 152

 

1 The values are given for all shear bolts installed

2 For reference only! – depends on operating conditions for rubber parts in a well.

3 Calculated value when stresses reach tensile yield of the material.

4 In PHN2.102/140 and PHN2.102/146 thread OTTM-102 is produced according to TU 14-161-163.

 

PARAMETER DESCRIPTION VALUE
PHN2. 127/178 PHN2. 127/178-114 PHN2. 168/245 PHN2. 178/245
Liner nominal OD, mm 127 114 168 178
Casing nominal OD, mm 178 178 245 245
Maximum anchoring casing ID, mm 150 (152) 149 (152) 211 (213) 211 (213)
Maximum tool OD (at centralizer), mm 111 99 150,5 157
Drift ID (after activation), mm 160 167 231 231
Values of differential activation pressures1 , MPa
- anchor
- hydraulic disconnection device 		14
20
Load on packer for activation, kN 150
Maximum differential pressure between the zones isolated
by a packer unit, MPa 		30
Maximum operating temperature2, °C 100
Maximum axial tensile load on disconnection3 , kN 800 700 1000 1000
Connecting threads4 :
- top GOST 28487 (GOST R 50864)
- bottom GOST 632-80 		З-102
ОТТМ-
127 		З-102
ОТТМ
114 		З-133
ОТТМ
168 		З-133
ОТТМ
178
Length in operating position, mm 4138 4183 3769 4095
Weight in operating position, kg 209 240 385 420

 

1 The values are given for all shear bolts installed.

2 For reference only! – depends on operating conditions for rubber parts in a well.

3 Calculated value when stresses reach tensile yield of the material.

4 In PHN2.102/140 and PHN2.102/146 thread OTTM-102 is produced according to TU 14-161-163.