OCTG is the abbreviation of Oil Country Tubular Goods, it mainly refers to the piping products that applied in the oil and gas production (drilling activities). OCTG pipe normally is manufactured based on API or related standard specifications. It also could be taken as a collective name of Drill pipe, Steel Casing Pipe and Tubing pipe, Couplings, Connections and Accessories, used in petroleum industries that onshore and offshore.
OCTG Steel Drill Pipe
API 5CT PSL1 3 1/2" N80-1, N80-Q, J55 ,K55 Steel OCTG in Oil and Gas/oilfield Tubing pipe
Carbon Steel/ Steel Coil
Black Painting or bare pipe
DIN GB ISO JIS BA ANSI
H40/ J55/ K55/ N80 / N80Q /R95 /P110 /Q125...
4 1/2inch to 20inch
BTC/ STC/ LTC/ INTEGRAL-JOINT
Oil country tubular products/ oil well
ISO9001, SGS, API, GOST, BV
OCTG, all named Oil CountryTubular Goods, tubular Goods for petroleum.The term refers to a class of steel tubes, mostly seamless, that are used exclusively for oil and gas production, but a significant proportion are welded.
The standard api-5ct drill pipe is the pipe connecting the drilling motor and the drill bit during drilling. The outer diameter is generally 2-6.5 inches (50-165mm) and the length is generally 5-14m.The casing serves as the structural wall or lining of the oil/gas well to prevent contamination of the well or surrounding groundwater, up to 26 inches in diameter.Casing accounts for more than 3/4 of shipments of dedicated petroleum pipes.
The working principle
Drilling fluid flows through the drill string to the drill bit to cool the bit, while the resulting debris of soil and rock forms mud with the drilling fluid, which is transported to the surface through the annulus (the gap between the casing and the drill string).The drill string is mostly seamless because of the harsh working environment.oil casing
Petroleum pipe (gb9948-88) is suitable for furnace tube, heat exchanger and seamless pipe in petroleum refinery.The steel pipe for geological drilling (yb235-70) is the steel pipe for the geological department to conduct core drilling, which can be divided into drill pipe, drill collar, core pipe, casing pipe and sedimentation pipe, etc.Petroleum cracking pipe is a kind of strip steel with hollow section and no joints around.
Widely used in the manufacture of structural parts and mechanical parts, such as oil drilling pipe, car shaft, bicycle frame and construction moving pictures of steel scaffolding and so on.Using petroleum cracking pipe to make annular parts can improve material utilization and simplifyManufacturing process, material saving and processing time, such as rolling bearing ring, jack sleeve, etc., has been widely used to manufacture steel pipe.Oil cracking pipe is also an indispensable material for all kinds of conventional weapons.The oil cracking pipe can be divided into circular pipe and abnormal pipe according to the different shape of cross-sectional area.Since the area of the oil cracking pipe is the largest under the condition of equal perimeter, more fluid can be transported through the circular pipe.
Product manufacturing process
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.
has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of oil casing steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.
Why to choose us?
1.We provide products to our customers individual specifications and special needs with competitive price and best service.
2. Immediate respond
We will be 24/7 on line at your services. Provide one-to-one service with our sincerity.
3. Professional suggestions
We could provide you the professional suggestion with our expertise acumen.
4. Short delivery period
We are based on a long-term cooperation with several major domestic steel company with an outstanding advantage is sufficient supply. Shorter the supplying period.