Own original development protected by Russian and foreign patents
Additional energy source – elastic torsion strain
High efficiency of the torsional jar in deviated and horizontal wellbores

Preview

The design of the torsional jars is an original development of “BURINTEKH”, Ltd protected by Russian and foreign patents, including the USA and Canada.

Why is it customary to retrieve stuck equipment by applying shock loads only along the axis of the well? After all practical life experience suggests that in order to extract, for example, a hammered nail, it is better not just to pull it, but to pull it with a simultaneous turn. It is obvious that the equipment stuck in the well is also easier to retrieve if not only shock loads are applied to it along the axis of the well but also impact torque. To solve this problem we have mastered the production of torsional jars “SHOCK TURN” which can act on the object stuck in the well with impacts clockwise, counterclockwise, as well as impacts up or down in various combinations.

The main advantages of the SHOCK TURN jars are:

  • The power capacity of torsional jars is much higher compared to conventional ones due to the use of an additional energy source – elastic torsion strain;
  • Allows combining axial impacts with torsional impacts, which increases the likelihood of retrieving a stuck object;
  • Left-hand design allows retrieving the stuck equipment in parts;
  • Torque is transmitted through the string with less friction loss than axial load. Therefore the efficiency of the torsional jar in deviated and horizontal wellbores is higher;
  • Compact design for easy delivery to hard-to-reach areas.

Characteristics

Size

OD, mm

Flow channel diameter, mm

Length, max, mm

Weight, max, kg

Tool joints

Closed

Opened

Top

box

Bottom

pin

JGK-108

111,1

25

2200

2600

130

Z-86

Z-86

JGK-108(L)

111,1

25

2500

2800

150

Z-86 LH

Z-86 LH

JGK-108(O)

111,1

25

2200

2600

130

Z-86

Z-86

JGK-108Р(O)

111,1

22

2560

2860

155

Z-86

Z-86

JGK-108Р(L)

111,1

22

2850

3150

180

Z-86 LH

Z-86 LH

JGK-114Р

114,8

50,8

2560

2860

150

Z-86

Z-86

JGK-124

127,8

50,8

2200

2500

200

Z-102

Z-102

JGK-124Р

127,8

50,8

2570

2870

200

Z-102

Z-102

JGK-124Р(L)

127,8

50,8

2570

2870

200

Z-102 LH

Z-102 LH

JGK-172Р

178

72,6

2975

2675

350

Z-133

Z-133

JGK-172Р(L)

178

72,6

2975

2675

350

Z-133 LH

Z-133 LH


* Due to continuous improvement of products, slight differences from the parameters indicated in the table are possible.

Documentation

Publications

  • New type torsional jars “SHOCK TURN”

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