Richsen team successfully participated in the Moscow Oil and Gas Exhibition on April 15, 2024, which lasted for 3 days and achieved a complete success.

RICHSEN Team has successfully participated OTC-2019 in Houston, TX, US on 06-09 May 2019. After the exhibition, we has established a warehouse in Houston according to customer's demand, keep more than 10 X 20'GP coupling in the warehouse. When you need coupling, please contact RICHSEN.

RICHSEN leader Has Successfully Participated ADIPEC-2023 in Abu Dhabi From 2-5 October 2023.

As we know steel pipe coupling is a short pipe or tube that with threads on both ends, used to connect pipelines. So It is a kind of pipe fittings that with threaded connection, the advantage is easy for pipeline maintenance or to replace the broken pipe. API Coupling refers to the steel couplings that used in connecting casing pipe and tubing. Also known by OCTG coupling, it is usually manufactured in seamless type, material grade same with the pipe body (API 5CT K55/J55, N80, L80, P110 etc), same PSL or providing higher grades than requested. Same heat treatment also applicable, except there is an special requirements.

Casing and tubing strings are the main parts of the well construction. All wells drilled for the purpose of oil or gas production (or injecting materials into underground formations) must be cased with material with sufficient strength and functionality.