What are the structures of oil pipelines?

What are the structures of oil pipelines?

Oil pipes are seamless pipes suitable for furnace tubes, heat exchangers and pipes in petroleum refineries. Oil pipe is a long steel material with a hollow cross-section and no seams around it. Oil cracking pipe is a kind of economical cross-section steel material.

It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, steel scaffolding used in construction mobile screens, etc. Using petroleum cracking pipes to manufacture ring-shaped parts can improve material utilization, simplify the manufacturing process, and save materials and processing hours, such as rolling bearing rings, jack sets, etc. Steel pipes have been widely used. Petroleum cracked tubes are also an indispensable material for various conventional weapons. Barrels, barrels, etc. must be made of petroleum cracked tubes. Petroleum cracking pipes can be divided into round pipes and special-shaped pipes according to their cross-sectional area and shape. Due to the condition of equal circumferences, the area of the petroleum cracking pipe is the largest, and more fluid can be transported with round pipes.

Oil pipe structure
1. OCTG pipe: is the abbreviation of Oil Country Tubular Goods, including finished oil casing, drill pipe, drill collars, couplings, short joints, etc.
2. Oil pipes: pipes used for oil well production, gas production, water injection, acid fracturing, etc.
3. Casing: A pipe that is run from the ground into a drilled hole as a lining to prevent wall collapse.
4. Drill pipe: pipe used for drilling wellbore.
5. Line pipe: Pipeline used to transport oil and natural gas.
6. Coupling: used to connect two threaded pipes and a cylinder with internal threads.
7. Coupling material: pipe used to make couplings.
8. API thread: Pipe thread specified in API 5B standard, including oil pipe round thread, casing short round thread, casing long round thread, casing trapezoidal thread, pipeline pipe thread, etc.
9. Special buckle: non-API thread buckle type, with special sealing performance, connection performance and other properties.

Oil and casing failure
Deformation, fracture, surface damage and loss of original functions that occur under specific conditions of use. The main forms of oil casing failure are: collapse, slippage, rupture, leakage, corrosion, adhesion, wear, etc.

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