Off-line quenching and tempering manufacturing process for coiled tubing
An off-line quenching and manufacturing process technology, applied in the direction of manufacturing tools, process efficiency improvement, furnace, etc., can solve the problems that cannot meet the requirements of on-site operations, etc., to solve self-locking, improve material strength and fatigue life, increase lowering effect of depth
Inactive Publication Date: 2021-11-02
山东宏丰智能装备有限公司 +1
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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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[0020] 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.
[0021] 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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The invention relates to the technical field of coiled tubing manufacturing, and provides an off-line quenching and tempering manufacturing process for a coiled tubing. The off-line quenching and tempering manufacturing process for the coiled tubing comprises the following steps of performing off-line induction heating on the coiled tubing to austenitize a whole tube body, then quenching, sizing the tube body after quenching, and performing tempering treatment on the whole tube body in an induction heating furnace. The off-line quenching and tempering manufacturing process for the coiled tubing provided by the invention has the advantages that the material strength of the coiled tubing is improved and the fatigue life of the coiled tubing is prolonged through offline quenching and tempering heat treatment of the coiled tubing, the problem that the coiled tubing is prone to self-locking in a large-displacement horizontal well is solved, and the tripping-in 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 off-line 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 o...
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IPC IPC(8): C21D9/08C21D1/18C21D1/10
CPCC21D9/085C21D1/18C21D1/10Y02P10/25
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