ERW steel pipe for oil drilling

We would only say we need seamless steel pipe several decades ago once we have discussion for oil drilling. With advanced technology, now we would be fond of ERW steel pipe for oil drilling and oil well too. Why? High quality welded steel pipe can be used for it too.

Compared seamless tube, ERW casing tube for oil drilling would have advantages of high dimensional accuracy, weld toughness, anti-extrusion of high-performance, and low cost advantages. We can see details below.

High dimensional accuracy. By control of mechanical sizing process, now for molding, precision, ERW steel pipe has its merits of thickness standard deviation of <0.10 mill corresponding seamless casing standard deviation was 0.41 mill.

Nice weld steel pipe’s toughness. Once we get the C, S and P content lower in the component organization, then we will get the high strength and toughness for the weld. Thus we can make the quality better than before.

Advancement on quality control. ERW sleeve base metal control rolled coil, isotropic, 100% non-destructive testing.

Low cost. Compared with similar seamless casing, ERW casing 5% to 10% low cost, high efficiency, high degree of mechanization and automation, low energy consumption and production.