The pup joint is a shorter casing customized to the customer's required length, which is just shorter than the normal casing length. The general length is about 1-3m or according to customer requirements. Oil casing pup refers to the length of oil casing outside the standard regulations. Pup joints are divided into oil pipe pup joints and casing pup joints. Generally speaking, flange pup joints in pipe fitting connections are used in conjunction with flanges. Specifically, it is placed in the inner space of the flange, and then the tail is welded to the steel pipe. At this time, the flange can move. As long as it is a flange of one specification, it can be connected at any time. The purpose is that the flange can move. Pup joints are used to handle production tubing assemblies and to space the full length of tubing and casing strings. Pup joints are also known as protective joints, gaskets and pup joints.
The pup joint is a commonly used accessory in industrial pipeline connections. The common ones are threaded pup joint, which are divided into double-ended external wires, single-ended external wires, and flat-ended external wires. The pup joint is a short section of casing and tubing . Compared with the casing and tubing, it is only different in length, but everything else is the same. The tubing short connection refers to the tubing shorter than R1. Its length is usually 0.3m--6m. It is also 1FT-20FT, which is commonly used abroad. The basic specifications, steel grade and use environment are the same as those of ordinary tubing. Pup joints, like oil return pipes, are divided into non-thickened (NUE), thickened (EUE), with and without couplings, as well as male buckle + female buckle, male buckle + male buckle and other types. Commonly used oil pup joint diameter specifications include ф50mm ф62mm ф73mm. The use of oil pup joint in our oil production is very, very critical. Generally speaking, oil pup joint are just a very common accessory for industrial pipeline connections. In fact, there are many types of pup joint, and the ones that people usually use more often are threaded pup joint. Threaded pup joint can also be divided into many types. Among them, the threaded pup joint of double-ended external thread is widely used. The outer wire of the warhead is also the type in the threaded pup joint, and it is also widely used.
The threaded pup joint with flat head male thread is the most commonly used threaded pup joint among the threaded pup joint. Ordinary pup joints are divided into two categories: our oil pipe pup joints and casing pup joints. Generally speaking, the flange pup joint of our main connection is often used in conjunction with this type of flange connection. Different pup joint specifications will correspond to different casings. Our oil pup joints are mainly used on casings in oil mining facilities. The extraction of pup joint is not a simple matter. There must be no other errors or omissions during the mining process.
Because oil pup joint work is different from other jobs, it is a job that is particularly relevant to our daily lives. It is also a job with a particularly high risk factor and great difficulty. If there is a problem with the extraction of oil pipelines, it will definitely not be a small problem. The resulting property damage is immeasurable. Our oil ppup joint is a small but critical small part to avoid other property losses during oil extraction.
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