Metal pipe for oil well and method for manufacturing metal pipe for oil well
The metal pipe for an oil well according to the present invention can be fastened with a high torque even if the diameter is large. This oil well metal pipe (1) is provided with a pipe body (10) comprising a first end (10A) and a second end (10B). The pipe main body (10) includes a male buckle porti...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The metal pipe for an oil well according to the present invention can be fastened with a high torque even if the diameter is large. This oil well metal pipe (1) is provided with a pipe body (10) comprising a first end (10A) and a second end (10B). The pipe main body (10) includes a male buckle portion (40) formed at the first end portion (10A) and a female buckle portion (50) formed at the second end portion (10B). The male clasp portion (40) comprises a male clasp portion contact surface (400), the male clasp portion contact surface (400) comprising a male threaded portion (41), and the female clasp portion (50) comprises a female clasp portion contact surface (500), the female clasp portion contact surface (500) comprising a female threaded portion (51). This oil well metal pipe (1) is further provided with a resin film (100), which contains a resin, a solid lubricating powder, and copper phthalocyanine, on at least one of the pin contact surface (400) and the box contact surface (500).
本公开的油井用金属管即使是大口径，也能够 |
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