OA20570A - Threaded connection having a dissymmetrical helical profile. - Google Patents

Threaded connection having a dissymmetrical helical profile. Download PDF

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Publication number
OA20570A
OA20570A OA1202200019 OA20570A OA 20570 A OA20570 A OA 20570A OA 1202200019 OA1202200019 OA 1202200019 OA 20570 A OA20570 A OA 20570A
Authority
OA
OAPI
Prior art keywords
male
threaded portion
female
hélix
threaded
Prior art date
Application number
OA1202200019
Other languages
English (en)
Inventor
Pierre Martin
Anthony Foulogne
Original Assignee
Vallourec Oil And Gas France
Nippon Steel Corporation
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 Vallourec Oil And Gas France, Nippon Steel Corporation filed Critical Vallourec Oil And Gas France
Publication of OA20570A publication Critical patent/OA20570A/fr

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Abstract

Threaded tubular connection for the casing of hydrocarbon wells obtained by makeup of a male tool joint with a female tool joint, the connection comprising a threaded portion (16a, 18a), such that the male and respectively female threaded portions each comprise a helix provided with a load flank, a thread crest, a stabbing flank, a thread root, such that a pitch of the load flank (LFLp, LFLb) and a pitch of the stabbing flank (SFLp, SFLb) fulfils the following condition: [Math 22] SFLb = LFLb = SFLP = LFLP = k, A tooth width (Wtp) of the male helix and a tooth width of the female helix (Wtb) are such that [Math 23] or [Math 24] and [Math 25] Wtp + Wtb < k
OA1202200019 2019-07-19 2020-07-15 Threaded connection having a dissymmetrical helical profile. OA20570A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FRFR1908204 2019-07-19

Publications (1)

Publication Number Publication Date
OA20570A true OA20570A (fr) 2022-10-27

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