AR107635A1 - THREADED CONNECTION FOR STEEL PIPE - Google Patents

THREADED CONNECTION FOR STEEL PIPE

Info

Publication number
AR107635A1
AR107635A1 ARP170100382A ARP170100382A AR107635A1 AR 107635 A1 AR107635 A1 AR 107635A1 AR P170100382 A ARP170100382 A AR P170100382A AR P170100382 A ARP170100382 A AR P170100382A AR 107635 A1 AR107635 A1 AR 107635A1
Authority
AR
Argentina
Prior art keywords
thread
box
threaded connection
rod
lip
Prior art date
Application number
ARP170100382A
Other languages
Spanish (es)
Inventor
Yasuhiro Yamamoto
Sadao Douchi
Masaaki Sugino
Original Assignee
Nippon Steel & Sumitomo Metal Corp
Vallourec Oil & Gas France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel & Sumitomo Metal Corp, Vallourec Oil & Gas France filed Critical Nippon Steel & Sumitomo Metal Corp
Priority to ARP170100382A priority Critical patent/AR107635A1/en
Publication of AR107635A1 publication Critical patent/AR107635A1/en

Links

Landscapes

  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

Una conexión roscada para tubo de acero con rendimiento de sellado mejorado. Una conexión roscada (1) para tubo de acero incluye un vástago (10) y una caja (20). El diámetro externo de la caja (20) es menor que 108% del diámetro externo de un cuerpo de tubo de acero (30). El vástago (10) incluye un labio de vástago (12) que incluye una primera superficie de sello (11), una rosca macho (13) constituida por una rosca cónica de una sola etapa, y una segunda superficie de sello (14). La caja (20) incluye una primera superficie de sello (21), una rosca hembra (23) constituida por una rosca cónica de una sola etapa, y un labio de caja (22) que incluye una segunda superficie de sello (24). Cuando se ensamblan, las primeras superficies de sello (11, 21) están en contacto entre sí y las segundas superficies de sello (14, 24) están en contacto entre sí. Una porción de la rosca macho (13) localizada cerca al extremo del mismo próximo al labio de vástago (12) incluye una pluralidad de superficies de fondo de filete de rosca extendiéndose paralelas al eje del tubo (CL) y teniendo el mismo diámetro. Una porción de la rosca hembra (23) localizada cerca del extremo de la misma próximo al labio de caja (22) incluye una pluralidad de superficies de fondo de filete de rosca extendiéndose paralelas al eje del tubo (CL) y teniendo el mismo diámetro.A threaded connection for steel pipe with improved sealing performance. A threaded connection (1) for steel tube includes a rod (10) and a box (20). The outer diameter of the box (20) is less than 108% of the outer diameter of a steel tube body (30). The rod (10) includes a rod lip (12) that includes a first seal surface (11), a male thread (13) constituted by a single stage conical thread, and a second seal surface (14). The box (20) includes a first seal surface (21), a female thread (23) constituted by a single stage conical thread, and a box lip (22) that includes a second seal surface (24). When assembled, the first seal surfaces (11, 21) are in contact with each other and the second seal surfaces (14, 24) are in contact with each other. A portion of the male thread (13) located near the end thereof close to the rod lip (12) includes a plurality of thread fillet bottom surfaces extending parallel to the axis of the tube (CL) and having the same diameter. A portion of the female thread (23) located near the end thereof close to the box lip (22) includes a plurality of thread fillet bottom surfaces extending parallel to the axis of the tube (CL) and having the same diameter.

ARP170100382A 2017-02-16 2017-02-16 THREADED CONNECTION FOR STEEL PIPE AR107635A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ARP170100382A AR107635A1 (en) 2017-02-16 2017-02-16 THREADED CONNECTION FOR STEEL PIPE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ARP170100382A AR107635A1 (en) 2017-02-16 2017-02-16 THREADED CONNECTION FOR STEEL PIPE

Publications (1)

Publication Number Publication Date
AR107635A1 true AR107635A1 (en) 2018-05-16

Family

ID=62596983

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP170100382A AR107635A1 (en) 2017-02-16 2017-02-16 THREADED CONNECTION FOR STEEL PIPE

Country Status (1)

Country Link
AR (1) AR107635A1 (en)

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