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Introduction of joints of drill pipe

Introduction of joints of drill pipe

The drill pipe joint is an integral part of the drill pipe, which is divided into male and female joints and is connected to both ends of the drill pipe body. In order to enhance the connection strength of the joint, the wall thickness of the pipe body needs to be increased at the joint site. According to the thickening method, it can be divided into three forms: inner thickening, outer thickening, and inner and outer thickening. The thread on the joint is threaded (thick buckle), which is used to connect each single drill pipe. The thread of the drill pipe joint is a taper pipe thread with a sealing shoulder. The shoulder surface is tightened to play a sealing role, and the thread only plays a connecting role. Thickening way is different, the corresponding joint thread buckle type is also different.

2023/08/25

Classification of drill pipe

Classification of drill pipe

Drill pipes are divided into three categories: kelly pipe, drill pipe and weighted drill pipe. The connection sequence is kelly (1) drill pipe (n, determined by the depth of the well) heavy drill pipe (n, determined by the design of the BHA).

2023/08/25

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