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Threated connection for drilling and operating hydrocarbon wells

A threaded connection and threaded technology, applied in the direction of drilling equipment, drill pipe, drill pipe, etc., can solve the problem of insufficient contact

Active Publication Date: 2014-08-27
VALLOUREC OIL & GAS FRANCE SAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure does not solve the problem of making sufficient contact between the crest and root of the thread

Method used

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  • Threated connection for drilling and operating hydrocarbon wells
  • Threated connection for drilling and operating hydrocarbon wells
  • Threated connection for drilling and operating hydrocarbon wells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Figure 1A The shown threaded connection with an axis of rotation 10 comprises, in a known manner, a first tubular part with the same axis of rotation 10 and provided with a male end 1 and a second tubular part with the same axis of rotation 10 and provided with a female end 2 . Tubular parts.

[0038] Figure 1B and 1CThe respectively shown tubular parts each comprise an end 1 and 2 in a known manner. The ends each terminate in a terminal face 7, 8 oriented radially with respect to the axis 10 of the threaded connection and are respectively provided with a threaded zone 3, 4 which fits together by fitting to interconnect the two parts. The threaded zones 3, 4 are of a known type, called "self-locking" (it can also be said that the axial width of the threads and / or the spacing between the threads have a progressive change), so that during assembly, after reaching the final Progressive axial tightening occurs until the locked position of the

[0039] in a known manne...

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PUM

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Abstract

The invention relates to a kit for producing a threaded connection, the kit comprising a first tubular part with an axis of rotation (10) and a second tubular part, one of their ends (1, 2) being provided according to the threaded end The threaded area (3; 4) formed on the outer peripheral surface or the inner peripheral surface of the part is male or female, said end portions (1, 2) end in terminal faces (7, 8), said The threaded zone (3; 4) comprises, at least in part, a thread (32, 42) comprising thread ridges when viewed in a longitudinal section through the axis of revolution (10) of said tubular part. crest (35, 45), thread root (36, 46), load flank (30; 40) and insertion flank (31; 41), the width of the thread crest (35, 45) of each tubular member Decreases in the direction of the terminal face (7; 8) of the tubular part concerned, while the width of the thread roots (36, 46) increases when passing through the axis of revolution of the tubular part (10) the profiles of said load flanks and / or said stabbing flanks of said male and female threaded regions each have at least one equivalent portion (E, E') when viewed in longitudinal section, such that when said first tubular part and said second tubular part are fitted together, said male thread and said female thread are able to co-operate on said equivalent portion (E, E'), characterized in that Equal parts (1, 2) of said male and female ends (1, 2) are radially offset relative to each other.

Description

technical field [0001] The present invention relates to a kit for manufacturing a threaded connection for drilling and operating oil and gas wells, the kit comprising a first tubular part and a second tubular part, one of which is provided with a male threaded end and the other One tubular part is provided with female threaded ends, the two ends being capable of mating by a self-locking fit. The invention also relates to a threaded connection formed by fitting two tubular parts. Background technique [0002] The term "component for drilling and operating oil and gas wells" means any element having a generally tubular shape intended to be connected to another element of the same or different A drill string or a riser used for maintenance (such as a work over riser) or a riser used for operations (such as a production riser), or a string of casing or tubing involved in operating a well. The invention is particularly applicable to components used in drill strings, such as dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/042
CPCE21B17/0423E21B17/042
Inventor S·格朗热O·卡龙E·韦尔热
Owner VALLOUREC OIL & GAS FRANCE SAS