A coiled tubing centralizing device

A technology of tubing and oil, which is applied in the field of coiled tubing centering devices, and can solve the problem that the coiled tubing cannot enter the injection head completely vertically

Active Publication Date: 2021-10-19
山东威盟石油机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the coiled tubing cannot enter the injection head completely vertically

Method used

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  • A coiled tubing centralizing device
  • A coiled tubing centralizing device
  • A coiled tubing centralizing device

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments 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 belong to the protection scope of the present invention.

[0039] A coiled tubing centralizing device, combined with figure 1 , figure 2 and Figure 7 , including frame 1, straightening part 2, driving part 3 and oil 4, frame 1 is fixedly connected to the upper end of the injection head, straightening part 2 is erected in the middle of frame 1, and driving part 3 is erected on the side of straight...

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Abstract

The invention relates to a coiled tubing straightening device, which relates to the technical field of coiled tubing injection head, which includes a frame, straightening parts, driving parts and oil, the frame is fixedly connected to the upper end of the injection head, and the straightening part is erected in the middle of the frame. The driving part is erected on the frame on one side of the straightening part, and the oil is injected into the straightening part. Among them, the straightening part includes a bracket and a runner. On the driving part, the runner is a long cylindrical metal wheel, and the runner is connected to the support by rotating obliquely in the length direction. The coiled tubing passes through the middle of the support area distributed in a ring shape, and the axis of the coiled tubing coincides with the axis of the runner ring. The runner abuts against the outer surface of the coiled tubing, and the invention has the advantages of being able to straighten the coiled tubing into the injection head, straighten the coiled tubing with a certain curvature, and ensure a smooth feeding process of the coiled tubing.

Description

technical field [0001] The invention relates to the technical field of a coiled tubing injection head, in particular to a coiled tubing centralizing device. Background technique [0002] Coiled tubing is an indispensable tool for oilfield operations. It is mainly used for sand flushing, drilling bridge plugs, gas lift, wax removal, cement squeezing and drilling cement plugs in oil wells. During the process, when the coiled tubing moves from the gooseneck to the injection head, due to the small diameter and high flexibility of the coiled tubing, and the angle between the gooseneck and the injection head, the coiled tubing will appear before entering the injection head. Various forms, for example, the coiled tubing can automatically bend into an arc shape due to the curling of the roller. At this time, the coiled tubing cannot ensure that it enters the injection head vertically, and the coiled tubing is likely to bend outward suddenly at the connection between the gooseneck an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/22
CPCE21B19/22
Inventor 朱晓成彭明明张璐萍张城玮
Owner 山东威盟石油机械有限公司
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