1105, 2020

Selection of premium connection for high temperature and high pressure well

May 11th, 2020|0 Comments

High temperature and high pressure wells put forward higher requirements for the premium connection. The manufacturer of the premium connection should not only pay attention to the preparatory work, screw joint design and quality assurance procedures in the early planning stage, but also run through all links of product processing, transportation and well pad.

1803, 2020

Premium connection with double sealing surface

March 18th, 2020|0 Comments

The casing with API standard thread connection is difficult to meet the production demand in many cases. In addition to meeting the joint performance, premium connection also needs to have good sealing performance under extreme environment and composite load.

1103, 2020

Processing program of premium connection

March 11th, 2020|0 Comments

The processing technology of the premium connection thread is realized by the processing program. CNC machine tools, the systems used and the specific processing procedures are different. The following common problems should be paid attention to when programming:

203, 2020

Processing characteristics and difficulties of premium connection

March 2nd, 2020|0 Comments

Premium connection includes thread, sealing surface and shoulder. The processing technology is complex. For example, when the coupling is processed, the distance between the thread and the sealing surface is relatively close, and a special undercut is generally designed at the end of the thread.

2502, 2020

Direct connection premium connection

February 25th, 2020|0 Comments

The feature of the direct connection type premium connection is that the tubing and casing are not connected by coupling, and the internal and external threads are directly processed at the end of the tubing and casing.

1301, 2020

Sealing structure of premium connection

January 13th, 2020|0 Comments

Premium connection generally has multiple seals, including main seal (mainly realized by metal / metal radial seal structure), auxiliary seal (generally realized by torque shoulder), elastic seal (generally realized by teflon seal ring), etc. in addition, although the thread does not play a major role in sealing, it still has a certain sealing effect. Because of these sealing structures, special threaded joints generally have good sealing performance.

601, 2020

Sealing mechanism of premium connection

January 6th, 2020|0 Comments

Premium connection is different. The sealing function of this kind of thread is no longer realized by thread matching, but a special structure is designed for this purpose, generally a metal sealing structure.