Oil well pipe with threaded joint, method for manufacturing oil well pipe connection body using oil well pipe with threaded joint, and method for manufacturing oil well pipe with threaded joint
Provided is an oil well pipe with a threaded joint, in which excellent sintering resistance can be obtained without using complex grease, the generation of rust on a pin contact surface can be suppressed, and shoulder torque can be suppressed. This oil well pipe with a threaded joint is provided wit...
Gespeichert in:
Hauptverfasser: | , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Provided is an oil well pipe with a threaded joint, in which excellent sintering resistance can be obtained without using complex grease, the generation of rust on a pin contact surface can be suppressed, and shoulder torque can be suppressed. This oil well pipe with a threaded joint is provided with a pipe body (10) including a first end (10A) and a second end (10B). The pipe body (10) includes: a pin (40) formed at the first end (10A); and a female buckle (50) formed on the second end portion (10B). A pin contact surface (400) of the pin (40) is coated with a light oil (80). A solid lubricant film (60) is formed on a female buckle contact surface (500) of the female buckle (50).
提供带螺纹接头的油井管,对于该带螺纹接头的油井管而言,能够在不使用复合润滑脂的前提下获得优异的耐烧结性,能够抑制公扣接触表面处的锈的产生,并且,能够抑制抵肩扭矩。本公开的带螺纹接头的油井管包括管主体(10),该管主体(10)包含第1端部(10A)和第2端部(10B)。管主体(10)包含:公扣(40),其形成于第1端部(10A);以及母扣(50),其形成于第2端部(10B)。在公扣(40)的公扣接触表面(400)涂布有轻油(80)。在母扣(50)的母扣接触表面(500)上形成有固体润滑覆膜(60)。 |
---|