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Briefly Understand the N80 Oil Casing
N80 casing pipe is an important equipment for oil drilling. The main equipment includes drill pipe, core tube and casing, drill collar, and small diameter drill pipe. Domestic oil casings are made of ...
The Difference Between ERW Welded Steel Pipe and Ordinary Welded Steel Pipe
"ERW welded steel pipe" is a straight seam resistance welded pipe, abbreviated as ERW. It is used to transport petroleum, natural gas and other vapor-liquid objects, and can meet various requirements ...
How to Buy Seamless Steel Pipe Correctly
1. Seamless steel tubes of the same specification can be consulted by different manufacturers, and compared repeatedly, if they are much lower than the average value, they can not be bought. Any kind ...
Inspection Method of Weld Defects of ERW Steel Pipe
With the continuous increase in the delivery pressure and steel grade of oil and gas pipelines, the requirements of ERW steel pipes for oil and gas transportation are also increasing. The number of ER...
Steel Grade and Performance of Petroleum Casing
Petroleum special pipe is mainly used for oil and gas well drilling and oil and gas transportation. It includes oil drilling pipe, oil casing pipe, and oil suction pipe. Petroleum drill pipe is mainly...
Advantages of LSAW Steel Pipe
In the construction of long-distance pipelines, steel pipes account for a large proportion. Generally, 35% to 40% of pipeline investment accounts for the total investment of the project. How to choose...
Discussion on ERW Steel Pipe’s Adaptation to Temperature Range
ERW steel pipe is in accordance with API-5L standard or GB / T 9711.1-1997 standard. These standards do not specify the temperature range of ERW welded pipe, and the discussion is as follows:
1. Regar...
Hot Rolled Seamless Steel Pipe
Hot rolled seamless steel pipe: Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization tempera...
Types of Oil Casing and their Respective Uses
According to the function of petroleum casing pipe, it can be pided into surface casing, technical casing and oil layer casing.
1) Surface casing of petroleum casing:
1. It is used to block the unstab...
LSAW Steel Pipe Forming Method
LSAW steel pipe (Longitudinally Submerged Arc Welding is abbreviated as LSAW) is a professional expression term for straight seam submerged arc welded steel pipe. LSAW steel pipe is produced by using ...
