Coiled tubing, also known as flexible tubing or flexible tubing, is widely used in the fields of workover, logging, and drilling. Its production technology is the advanced high-end technology in the oil and gas industry today. Prior to this, only two companies in the world were able to manufacture and produce, and the supply of products was very hard-to-get. China has always depended on imports.

Dongtai Ocean Petroleum Instrument Co. Ltd. takes the production of High pressure with extra long stainless steel control tubelines (stainless steel coils) as its leading direction. In recent years, the company has been committed to the development and production of duplex steel and nickel-based alloy control tubelines, and has been widely recognized in the market.

1/8”Hydraulic control line, also called capillary tube, mainly used for oil and gas field underground capillary pressure measurement. The temperature and pressure sensor (also known as a downhole permanent pressure gauge, generally a nitrogen cylinder) and the production string of the oil and gas well are run into the oil and gas layer several kilometers deep, and then the 1/8 "hydraulic control line (capillary) The temperature and pressure sensors are always connected to the surface of the fluorescent display, so that the downhole temperature and pressure can be transmitted to the surface through the capillary tube

The series of our products have been inspected by China National Petroleum Corporation, petroleum tube supervision and inspection center, China Offshore Oil Bohai Corporation, and are in accordance with ASTM A269 APIRP5 C7 and JISG4305 project standards. Our products not only meet the need of domestic land and sea oil exploration, but also has been exported to many countries. It has been recognized and highly praised by both domestic and foreign companies.