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A sulfur-resistant marine drill pipe

A drill pipe and marine technology, applied in the field of sulfur-resistant marine drill pipe, can solve the problems of sulfidation corrosion of drill pipes, achieve the effects of preventing sulfidation corrosion, improving connection reliability, and ingenious structural design

Active Publication Date: 2019-05-14
JIANGSU HEXIN PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, oil drill pipes are often soaked in seawater during drilling, and after long-term use, the outside of the drill pipes will suffer from sulfidation corrosion

Method used

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  • A sulfur-resistant marine drill pipe
  • A sulfur-resistant marine drill pipe
  • A sulfur-resistant marine drill pipe

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Experimental program
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Embodiment Construction

[0018] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, a sulfur-resistant marine drill pipe includes a drill pipe body 1 , an anti-sulfur ring 2 , a reinforcement 3 and a connecting piece 4 . The anti-sulfur ring 2 is sleeved on the outside of the drill pipe body 1 . The drill pipe body 1 has a circular structure. The anti-sulfur ring 2 has a ring structure. A plurality of reinforcing pieces 3 and connecting pieces 4 are installed between the drill pipe body 1 and the anti-sulfur ring 2 . Further preferred, such as figure 2 As shown, the drill pipe body 1 is evenly provided with a plurality of drill pipe clamping grooves 11 around the outside. Such as image 3 As shown, the anti-sulfur ring 2 is evenly provided with a plurality of anti-sulfur clamping grooves 21 on the inner side around it. Such as figure 1 As shown, the multiple anti-sulfur engagement gro...

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Abstract

The invention discloses a sulfur-resistant marine drill pipe. The sulfur-resistant marine drill pipe comprises a drill pipe body, a sulfur-resistant ring, reinforcing pieces and connecting pieces. Thesulfur-resistant ring is connected to the outer side of the drill pipe body in a sleeving mode. The drill pipe body is of a circular structure. The sulfur-resistant ring is of a ring structure. The multiple reinforcing pieces and the multiple connecting pieces are mounted between the drill pipe body and the sulfur-resistant ring. The sulfur-resistant marine drill pipe is ingenious in structural design, the sulfur-resistant ring is connected to the outer side of the drill pipe body in the sleeving mode, and sulphur corrosion of the drill pipe body can be effectively prevented.

Description

technical field [0001] The invention relates to a sulfur-resistant marine drill pipe. Background technique [0002] At present, offshore oil exploration generally uses oil drill pipes, which are connected end-to-end through threaded joints. Threaded joints generally include external threaded joints and internal threaded joints, and external threaded joints and internal threaded joints are connected end-to-end through threads. . However, oil drill pipes are often soaked in seawater during drilling, and after long-term use, the outside of the drill pipes will suffer from sulfide corrosion. Contents of the invention [0003] Aiming at the shortcomings of the above-mentioned prior art, the problem to be solved by the present invention is: to provide a sulfur-resistant marine drill pipe that can resist sulfur and has high structural strength. [0004] In order to solve the above problems, the technical scheme that the present invention takes is as follows: [0005] A sulfur-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00
CPCE21B17/00
Inventor 赵钧羡吴敏胡新丽段隆臣刘志强胡郁乐李波
Owner JIANGSU HEXIN PETROLEUM MACHINERY