Overhaul and well-service equipment

Tongs

Suspended hydraulic split-type tongs KPGR (КПГР)

KPGR-9 (КПГР-9) and KPGR-16 (КПГР-16) (hereinafter referred to as tongs) are designed to operate in moderate and cold (region I2) climatic regions per GOST 16350. Climatic design is moderate and cold (MAC), location category of tongs during operation is 1 per GOST 15150 (from -60 °C to +45 °C).

Tongs are convenient and safe equipment for screwing and unscrewing operations of tubings having 60, 73 and 89 mm (48, 102 and 114 mm)* diameter for KPGR-9 (КПГР-9) and KPGR-16 (КПГР-16).

Tongs’ reducer has simple and reliable design. It consists of planetary gear is located right under hydraulic motor and cogged gear wheels system which ensures that rotor rotates at two gears (low or high) depending upon gear shift position. Control valve provides desired torque required for defect-free screwing of threaded connection of specific tubing size.

Tongs’ technical elements:

  • Cam gripping system;
  • Quick-change jaws;
  • Self-centering opening of tongs;
  • Torque adjustment valve;
  • Automatic-shut gate;
  • Manual delay KPGR-9 (КПГР-9) / pneumatic delay KPGR-16 (КПГР-16).
     

Comparative characteristics of KPGR-9 (КПГР-9) and KPGR-16 (КПГР-16):

 

KPGR-9

(КПГР-9)

KPGR-16

(КПГР-16)

Maximum torque, kN∙m (kgf∙m)

 

— low gear

9 (900)

16 (1 600)

— high gear

2,7 (270)

3,5 (350)

Rotation rate of tube’s gripping mechanism at rate 135 l/min, s-1 (rpm):

 

— low gear

0,5 (30)

0,3 (18)

— high gear

1,8 (108)

1,5 (88)

Nominal diameter of screwed and unscrewed pipes, mm

60, 73, 89

 

(48,95,102,105,114)*

Tongs drive

hydraulic

from hydraulic

system of unit

Operating pressure, MPa (kgf/cm2)

17,2 (172)

17,2 (172)

Overall dimensions:

 

 

— length, mm

1080

1090

— width, mm

755

790

— height, mm

1340

1850

Tongs weight, kg

350

500

Total service life, not less, years

7

7

Manufactured and delivered per

TU 3668-126-07538145-2001

option

Delivery set KPGR-9 (КПГР-9) (similar to 45000 "Oil Country" tongs model):

  • Changeable jaws, bushings, 60, 73, 89 mm thread-cutting dies (upon specific request - 48, 102, 114 mm);
  • Maintenance kit (brake band and 60, 73, 89 mm thread-cutting dies).

Delivery set KPGR-16 (КПГР-16) (similar to 56000 "Oil Country" tongs model):

  • Changeable jaws, bushings, 60, 73, 89 mm thread-cutting dies (upon specific request - 48, 102, 114 mm);
  • Maintenance kit (brake band and 60, 73, 89 mm thread-cutting dies).

KPGR-9 (КПГР-9) KPGR-16 (КПГР-16)


Mechanical general utility tongs KMU (КМУ) / Automatic tongs APR (АПР) 

 They are used to mechanize operations associated with screwing and unscrewing, centering, gripping, holding of suspended tubing string during well maintenance where all types of equipment is utilized including electric submersible pumps. The tongs are used in moderate and cold climatic regions.






Comparative characteristics of KMU-50 (КМУ-50), KMU-GP-50 (КМУ-ГП-50), APR-2VBM (АПР-2ВБМ) and APR-GP (АПР-ГП):

 

KMU-50

(КМУ-50)

KMU-GP-50

(КМУ-ГП-50)

APR-2VBM

(АПР-2ВБМ)

APR-GP 

(АПР-ГП)

Maximum load upon tongs’ spider, kN

500

500

800

800

Maximum torque at tongs’ carrier during unscrewing, N∙m

4500

4500

4500

4500

Maximum rate of rotation at carrier, rpm

60

60 — 86

51

45 — 66

Diameter of gripped tubing, mm

48,60, 73, 89

48, 60, 73, 89

48, 60, 73, 89

48, 60, 73, 89

Tongs drive

electrical*

hydraulic**

electrical*

hydraulic**

Drive’s motor

AIM 100 B4U 2.5 (АИМ 100 Б4У 2.5)

 

3103.56-20 type

 

AIM 100 S4Y 2.5

(АИМ 100 S4Y 2.5)

3103.56-20 type

Overall dimensions, mm

960×590×960

1020×590×760

850×460×730

800×480×740

Weight of ready-assembled tongs, kg

370

297

280

165

Weight of complete set, kg

436

410

365

250

Manufactured and delivered per

TU 3666-011-07538145-93

TU 3666-009-07538145-93

*inertial, explosion-proof, power supplied by field network

**from the hoisting unit


 

KMU-50 

(КМУ-50)

KMU-GP-50

(КМУ-ГП-50)

APR-2VBM

(АПР-2ВБМ)

APR-GP

(АПР-ГП)

 

KOT Single-hinged tongs

They are used for assembly and disassembly operations, during hoisting operations at wells, by using automatic tongs APR-2 (АПР-2) or mechanical tongs KMU-50 (КМУ-50).

 

 

 



Comparative characteristics of КОТ 48-89 and КОТ 89-132 tongs:

  КОТ 48-89 КОТ 89-132
Nominal diameter of screwed and unscrewed tubing, mm 48 — 89 89 — 132
Permissible force at the end of handle, kN 2 3
Overall dimensions, mm 500×125×120 530×160×120
Weight, kg 6,1 6,7
Manufactured and delivered per TU 3668-010-07538145-93


KTGU (КТГУ) Tongs

They are used for assembly and disassembly operations during hoisting operations at wells, using automatic tongs APR-2 (АПР-2) or mechanical tongs KMU-50 (КМУ-50).







Comparative characteristics of KTGU-48 (КТГУ-48), KTGU-60 (КТГУ-60), KTGU-73 (КТГУ-73) and KTGU-89 (КТГУ-89):

 

KTGU-48

(КТГУ-48)

KTGU-60

(КТГУ-60)

KTGU-73

(КТГУ-73)

KTGU-89

(КТГУ-89)

Nominal diameter of screwed and unscrewed tubing, mm 48 60 70 89
Maximum torque, kN 2,5 2,5 3 3,5
Overall dimensions:        
— length, mm 350 360 376 414
— width, mm 140 150 160 185
— height, mm 40 46 55 55
Weight, kg 3 4 5 7
Manufactured and delivered per ТU 3668-012-07538145-93