In the oil industry,casing has a widely use, and the casing also has different connection types.Next,I will introduce the different connection types of the casing.
First is the short round thread casing connection type.
The short round thread casing is one of the product types in the petroleum casing pipe. Short round thread casing features: 1. Improve resistance caused by abrasion when the thread in the screw. 2. When tightening screw, tooth gap provides a reasonable gap for foreign particles and dirt. 3.The arc tooth top is not sensitive for local scratch or dent damage.
Second is the long round thread casing connection type.
Long round thread casing is widely used as a buckle-shaped of oil casing. Due to the thread shape at both ends of the pipe body is like long round, so it’s called long round thread casing. Long round thread has the advantages of easy processing, good sealing performance, strong connection strength and cheap, so it’s widely used in the casing connection.
Last one is the buttress thread casing connection type.
Buttress thread casing have the name because the thread form is like partial trapezoidal and this thread is widely used in all the thread. The packing of the buttress thread casing is tied up with the steel wire or the steel band. The advantages of this thread improve axial tension and axial compression load and the leakage resistance is also provided.
Now, do you have a deep understanding of the OCTG casing? Different connection types of casing can meet your needs.So if you have any needs of the casing you can contact with us.