Well Сompletions Solutions

Hydromechanical cementing Liner Hanger with Rotation

The liner hanger is utilized where high sealing requirements and pressure differentials are needed in oil and gas wells
Hydraulic fracturing operations can be performed through this liner hanger with the use of a sealing stinger
Allows for the descent of the liner with rotation and movement, enabling the overcoming of geological obstacles and preventing sticking and hang-ups
Features a hydraulic disconnect mechanism, duplicating the mechanical disconnect
Withstands pressure differentials up to 70 MPa
Maintains functionality in wellbore intervals with a zenith angle up to 95 degrees
General Description

Used for rotating and moving the liner during descent

Features & Benefits
The liner hanger is utilized where high sealing requirements and pressure differentials are needed in oil and gas wells
Hydraulic fracturing operations can be performed through this liner hanger with the use of a sealing stinger
Allows for the descent of the liner with rotation and movement, enabling the overcoming of geological obstacles and preventing sticking and hang-ups
Features a hydraulic disconnect mechanism, duplicating the mechanical disconnect
Withstands pressure differentials up to 70 MPa
Maintains functionality in wellbore intervals with a zenith angle up to 95 degrees
Specifications
SDT-A632
Nominal diameter of the liner 102 114 114
The nominal diameter of the casing into which the packer suspension is lowered and installed 146 168 178
The wall thickness of the casing into which the device is lowered and installed, mm 7,7…9,5 7,3…10,6 8,1…10,4
The maximum outer diameter of the packer suspension, mm 123 142 152
Length of the packer suspension, mm 4665±200 4671±200 4671±200
The pressure drop between the separated zones, sustained by the suspension packer, MPa 70 70 70
Operating pressure of the anchor assembly, MPa 12±10% 12±10% 12±10%
Disconnection of the anti-rotation unit, MPa 14±10% 14±10% 14±10%
Maximum rotational torque transmitted by the packer suspension, kN*m 8
The main method of disconnecting the landing tool Turn to the right BEFORE CEMENTING
The number of revolutions for disconnection, at least 15
The maximum lapel moment during mechanical disconnection, kN *m 0,2…1,0
Actuation pressure of the hydraulic (backup) disconnection unit, MPa 25±10%
The value of unloading the weight of the drill string on the head of the packer suspension to activate the packer assembly, kN (tn) 147…196(15…20)
Maximum operating temperature,֯C 120