Safety Joint
Safety Joint
1. Application
It is used for fracturing by layer, acidification by layer, testing string and other constructions.
2. Structure and work principle
Structure: it is composed of upper joint, main part, lower joint, shear pin and so on.
Work principle: it is used on the top of packer. If there is accident such as string being blocked, throw a ball to cut off shear pin and open the sliding bush and turn the string to realize release.
3. Characteristics
Simple structure and convenient operation. The product is designed scientifically and the process is strictly controlled. So it has the good performances.