English
JRSK as an API 5CT certificated company specialized in manufacturing petroleum pipe, oil casing pipe, oil tubing, couplings, pup joints, slotted liner, seamless steel pipe and other steel pipes, annual output near 200,000 ton. Relying on professional technology, our products have been export to South America, North American, Russia, the Missle East, Southest Asia, West Asia, Africa etc. And we have established good relations with many clients and leading companies in the world.
Our factory has 20 years of history, passed the rigorous test to obtain the API-5CT certificate issued by the American Petroleum Institute and ISO9001 quality system certificate, committed to serve the new and old customers with superb technology.
Our company has a complete testing center to help provide customers with qualified products to ensure the maximum benefit of customers.
The workers are regularly trained by professional and technical personnel, and each production process is carried out in strict accordance with the standards, with our superb technology to create perfect products.
Function of oil casing: Protecting oil and gas well wall, improving mining efficiency, ensuring safe production, supporting well wall, separating different pressure layers and exporting oil and gas are not only the protectors of oil and gas well wall, but also the key tools to improve mining efficiency and ensure safe production. With the continuous development of oil and gas mining technology, oil casing will be more and more widely used. Make greater contributions to the cause of oil and gas exploitation.
Casing is the steel pipe that supports the walls of oil and gas Wells. Each well will use multiple casing layers depending on drilling depth and geological conditions. After the casing is run, cement the casing up. Unlike tubing and drill pipe, it cannot be reused. It's a disposable material. As a result, casing consumption accounts for more than 70% of all oil well pipelines. The casing can be divided into casing, surface casing, casing technology and oil shell according to the purpose.
There are many kinds, the basic is ordinary carbon steel, J55, L80, N80, P110, etc., and then more special materials, such as 3Cr, 9Cr, 13Cr, 22Cr, etc., mainly anti-carbon dioxide, as well as anti-hydrogen sulfide materials, such as 90SS, 95SS, etc., in addition to higher levels, there are nickel-chromium alloy pipes. There are also some special needs, such as high extrusion resistance materials, some manufacturers will add TT to indicate extrusion resistance.
Oil casing is mainly used to support the well wall during drilling and after well completion, so as to ensure the drilling process and the normal operation of the whole well after well completion. Casing after the well to use cement, it is different from tubing, drill pipe, can not be reused, belongs to a one-time consumption of materials. Therefore, casing consumption accounts for more than 70% of all oil well pipes. The classification of oil casing can be divided into pipe, surface casing, technical casing and oil layer casing according to the use. According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150 and so on.
Tubing is a pipe that goes into the casing of an oil well during normal production. In the flowing well, oil flow flows into the surface through the tubing and enters the gathering and transportation process. In the mechanical production well, the combination of tubing, sucker rod and deep well pump (that is, three pumping equipment) pumps the oil to the surface and enters the gathering and transportation process.
