RUEN
search icon
+7(495) 632-21-94 arrow icon
header btn
HomeCatalogLiner HangersLiner hanger with disconnection before cementing PHRC

Liner Hangers

Liner hanger with disconnection before cementing PHRC

Liner Hanger with disconnection before cementing PHRC is designed for RIH, hanging and
liner sealing in the well.
The device is a complex of three stand-alone and independent units on the same body:
• anchor unit which ensures liner hanging in service string;
• mechanical packer unit which ensures sealing in of inner annular space;
• mechanical breaking unit which ensures RIH of units together with the liner, performance
of technological operations such as washover, actuation of anchor unit, mechanical
disconnection of the transport string from the device, liner cementing followed by
packer unit actuation.
The hanger consists of two parts: adjustment tool and the hanger itself, the latter includes
packer unit, anchor unit and lead-in funnel.
When using hangers like PHRC the following technological operations are performed:
• RHI of the device as a part of a transport string liner;
• washovers with limited pressure (no more than 75% of anchoring pressure);
• washover of the bottomhole without pressure limits (anchor actuation changes annular
space insignificantly);
• ball-drop and its driving until its setting in the PGMC packer seat or in a special seat
set above the check valve;
• PGMC actuation (for collar cementing);
• anchor unit actuation with internal overpressure build-up to 13 MPa;
• the pressure build-up to 16 MPa opens PGMC packer cementing ports (for collar
cementing) or the pressure build-up to 20 MPa leads to shearing of a special seat
with a ball to restore circulation;
• disconnection of an adjustment tool from the hanger through relief of the transport
string and its rotation to the right at least 10 times;
• performing of liner cementing with running of the cementing plug after the injection
of the cement slurry for its separation from the displacement fluid;
• displacing the cement slurry to the outer annular space of the liner and receiving of
“stop” signal;
• packer unit actuation by partial uploading of the transport string weight onto the “head”
part of the liner;
• washover and pulling out of the transport string.

PARAMETER DESCRIPTION VALUE
PHRC.
102/140-89/119		 PHRC. 102/146 PHRC. 114/168
-102
Liner nominal diameter RIH with the device, mm 102 102 102
Casing string nominal diameter which the device is RIH
and installed, mm		 140 146 168
Maximum OD of the device body (at centralizer), mm 117 (119) 120 (122) 138 (141)
Min. drift diameter after actuation, mm 89 89 89
Maximum ID of a casing string in which anchoring is
performed, mm		 127 132 158
Internal overpressure for anchoring unit actuation, MPa 13,0±5%
Maximum swinging moment at the mechanical
disconnection, kg*m		 30 – 40
Maximum tensile force1
, kN		 600
Maximum pressure differential between the zones
isolated by a packer unit, P, MPa		 30
Maximum internal overpressure, MPa 25
Maximum operating temperature2
, °C		 100
Connecting threads:
– top according to GOST 28487-90
– bottom according to TR 14-161-163-96		 З-86
ОТТМ-102		 З-86
ОТТМ-102		 З-102
ОТТМ-102
Length in operating position, mm 4478 4490 4686
Weight in operating position, kg 130,5 144,5 217

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.

PARAMETER DESCRIPTION VALUE
PHRC.114/168 PHRC. 127/178 PHRC.127/178 -114
Liner nominal diameter RIH with the device, mm 114 127 114
Casing string nominal diameter which the device is RIH
and installed, mm		 168 178 178
Maximum OD of the device body (at centralizer), mm 138 (141) 149 (152) 149 (152)
Min. drift diameter after actuation, mm 99 111 99
Maximum ID of a casing string in which anchoring is
performed, mm		 158 164 164
Internal overpressure for anchoring unit actuation, MPa 13,0±5%
Maximum swinging moment at the mechanical
disconnection, kg*m		 30 – 40
Maximum tensile force1
, kN		 700 800 700
Maximum pressure differential between the zones
isolated by a packer unit, P, MPa		 30
Maximum internal overpressure, MPa 25
Maximum operating temperature2
, °C		 100
Connecting threads:
– top according to GOST 28487-90
– bottom according to TR 14-161-163-96		 З-102
ОТТМ-114		 З-102
ОТТМ-127		 З-102
ОТТМ-114
Length in operating position, mm 4670 4689 4709
Weight in operating position, kg 208,8 219,6 226,7

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.

PARAMETER DESCRIPTION VALUE
PHRCBT.140/178 PHRC.178/245
Liner nominal diameter RIH with the device, mm 140 178
Casing string nominal diameter which the device is RIH and
installed, mm		 178 245
Maximum OD of the device body (at centralizer), mm 151 (153) 211 (213)
Min. drift diameter after actuation, mm 125,4 159,4
Maximum ID of a casing string in which anchoring is performed,
mm		 160 232
Internal overpressure for anchoring unit actuation, MPa (PSI) 13,0±5%
Maximum swinging moment at the mechanical disconnection,
kg*m		 30 — 40
Maximum swinging moment at the mechanical disconnection,
kg*m
Maximum tensile force¹, kN 700 100
Maximum swinging moment at the mechanical disconnection,
kg*m		 70
Maximum internal overpressure, MPa(PSI) 70
Maximum operating temperature², °C 100
Connecting threads:
– top according to GOST 28487-90
– bottom according to TR 14-161-163-96		 Z-102
ТМК-3		 Z-133
ОТТМ-114
Length in operating position, mm( 3917 4390
Weight in operating position, kg 197,6 449
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.