Knuckle Joint


6 Knuckle Joint

Knuckle Joint comes with a special ball and socket design, allow for angular movement between the jars and the running or pulling tool to help align them with the tubing. Knuckle joints are especially important if tubing is corkscrewed and when wireline work is to be performed in a directional hole. Where stem and jars will not align, or move freely, it may be impossible to operate tools. However, the knuckle joint acts to prevent the wireline tools from hanging up.

Available tool sizes as shown.

Tools

O.D.

Fishneck

O.D.

Connection

Type

1.250

1.187

UN/JHQ/JHP

1.500

1.375

UN/JHQ/JHP

1.875

1.750

UN/JHQ/JHP

2.125

1.750

UN/JHQ/JHP

2.500

2.313

UN/JHQ/JHP