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HomeCatalogLiner HangersNoncemented liner hanger with oriented whipstock PHN-KO

Liner Hangers

Noncemented liner hanger with oriented whipstock PHN-KO

The PHN-KO liner hanger with oriented whipstock is used to RIH and hang non-cemented liners before kicking-off a second wellbore and running another non-cemented liner in it. The Strings with Bottom Hole Assemblies are issued in two executions PHN-KO2 and PHN‑KO5 with a way of disconnection :

  • PHN-КО2 Break up with pulling up tension after anchor actuation;
  • PHNН-КО5 Hydraulic break up with increase of pressure; Disconnection of Drilling String while pulling 25 tons over (PHN-КО2), or increasing pressure to 20 MPa (PHN – KO5) When using PHN-KO, the following operations are performed:
  • the PHN-KO is RIH as a part of the liner assembly on drill string;
  • azimuthal orientation of the whipstock in the well by the orienting tool – UOKS;
  • hydraulic anchor actuation by increasing the pressure up to 16 MPa;

The working mechanism of the hanger provides whipstock orientation in required direction. The pressure on the hanger parts is only transmitted if the whipstock is correctly set.

PARAMETER DESCRIPTION VALUE
PHN-KO2.153 PHN-KO2.143 PHN-KO5.153А
Nominal diameter of casing, equipped with tools, mm 114 114 114
Max Outside diameter, mm 145 136 136
Drift diameter after actuation, mm 60 60 60
Length of tool in working position, mm 6639 5610 5610
Weight of tool in working position, kg 433 423 423
Drill bit diameter for re-entry hole drilling, mm 152,4 142,9 152,4
Values of internal overpressures actuating devices, MPA
– Anchor unit
– Disconnector unit		 4—16
–		 4—16
–		 13
16
Axial load after activating anchor and provides disengagement of trigger tool, kN 433 423 473
Maximum operating temperature2 , °C 100 100 100
Maximum tensile axial force3 , kN 400 400 600
Connecting threads:
– Top thread
– Gov’t Standard 28487 (R 50864)
– Bottom thread – Gov’t Standard 632		 З-86
ОТТМ- 102		 З-86
ОТТМ- 114		 З-86
ОТТМ- 114

1 Pressure values are attached as per all shear pins of the unit are applied.

2 Parameter reference while operations downhole conditions.

3 Estimated value, at which stresses reach the yield strength of the material