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1.25inch 1.5inch 1.75inch 1.875inch 2.5inch
Ruixin
Wireline Knuckle Joint
Alloy Steel&Nickel Alloy
China Baoji
Wireline Operation And Slickline Operation
Standard
A wireline knuckle Joint is used to add flexibility to the tool string and it is effective in deviated wells.
Whenever Stem and jar are not aligned or not moving freely it is impossible to operate tools. However, adding knuckle joint in a string this situation can be avoided. Knuckle Joints are run immediately below mechanical jar. For additional flexibility additional knuckle joints can be included between stem and jar.
Size | Fishing neck | Connection |
1.25＂ | 1.187＂ | 15/16UN |
1.5＂ | 1.375＂ | 15/16UN |
1.75＂ | 1.375＂ | 15/16UN |
1.875＂ | 1.75＂ | 1-1/16UN |
2.5＂ | 2.313＂ | 1-9/16UN |
Note: More customized parts are available upon request.
The wireline knuckle joint is composed of upper contact, connecting sleeve, ball stud, lower contact, etc. The upper contact and the inner ball socket of connecting sleeve constitute a marked inner spherical surface; the bottom of ball stud is connected with the lower contact. While swinging and rotating the lower contact, the outer spherical surface of ball stud can move freely in the ball socket.
A wireline knuckle Joint is used to add flexibility to the tool string and it is effective in deviated wells.
Whenever Stem and jar are not aligned or not moving freely it is impossible to operate tools. However, adding knuckle joint in a string this situation can be avoided. Knuckle Joints are run immediately below mechanical jar. For additional flexibility additional knuckle joints can be included between stem and jar.
Size | Fishing neck | Connection |
1.25＂ | 1.187＂ | 15/16UN |
1.5＂ | 1.375＂ | 15/16UN |
1.75＂ | 1.375＂ | 15/16UN |
1.875＂ | 1.75＂ | 1-1/16UN |
2.5＂ | 2.313＂ | 1-9/16UN |
Note: More customized parts are available upon request.
The wireline knuckle joint is composed of upper contact, connecting sleeve, ball stud, lower contact, etc. The upper contact and the inner ball socket of connecting sleeve constitute a marked inner spherical surface; the bottom of ball stud is connected with the lower contact. While swinging and rotating the lower contact, the outer spherical surface of ball stud can move freely in the ball socket.
