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Coiled tubing on-line quenching and tempering manufacturing process

A quenching and tempering, manufacturing process technology, applied in the direction of manufacturing tools, quenching devices, furnaces, etc., can solve the problems that cannot meet the requirements of on-site operations, etc., to solve self-locking, increase the penetration depth, improve material strength and fatigue life Effect

Pending Publication Date: 2021-11-02
山东宏丰智能装备有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the vigorous development of deep wells, ultra-deep wells, shale gas wells, and shale oil wells, the application of coiled tubing is becoming more and more extensive, and the running depth of coiled tubing is increasing, which requires the strength of coiled tubing to be higher and higher. The original CT110 coiled tubing can no longer meet the requirements of field operations

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  • Coiled tubing on-line quenching and tempering manufacturing process

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention provides a coiled tubing on-line quenching and tempering manufacturing process. After high-frequency welding of a coiled tubing, austenitizing is carried out on a whole tube body, then quenching is conducted, sizing is carried out on the tube body after quenching, and then tempering treatment is conducted the whole tube body. The coiled tubing on-line quenching and tempering manufacturing process has the advantages that due to the coiled tubing on-line quenching and tempering manufacturing process, the material strength of the coiled tubing is improved, the fatigue life of the coiled tubing is prolonged, the self-locking problem of the coiled tubing is solved, and the setting depth of the coiled tubing is increased.

Description

technical field [0001] The invention relates to the technical field of coiled tubing manufacturing, in particular to an online quenching and tempering manufacturing process for coiled tubing. Background technique [0002] Coiled tubing (CT for short) is a new type of oil and gas pipe with high strength, high plasticity and certain corrosion resistance, with a single length of several kilometers without threaded joints. . Coiled tubing has been widely used all over the world due to its unique advantages such as high operating efficiency, less formation damage, small footprint, and reusability. [0003] With the vigorous development of deep wells, ultra-deep wells, shale gas wells, and shale oil wells, the application of coiled tubing is becoming more and more extensive, and the running depth of coiled tubing is increasing, which requires the strength of coiled tubing to be higher and higher. The original CT110 coiled tubing could no longer meet the requirements of field ope...

Claims

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Application Information

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IPC IPC(8): C21D9/08C21D9/50C21D1/18C21D1/63C21D8/10
CPCC21D9/08C21D9/50C21D8/10C21D1/18C21D1/63
Inventor 刘海燕孙兴旺陈世杰游艳平张海超王永英孟涛曲仲雷
Owner 山东宏丰智能装备有限公司