Coiled tubing centralizing device

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

Active Publication Date: 2021-06-18
山东威盟石油机械有限公司
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  • Summary
  • 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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  • Coiled tubing centralizing device
  • Coiled tubing centralizing device
  • 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 centralizing device, and relates to the technical field of coiled tubing injection heads. The coiled tubing centralizing device comprises a frame, a straightening component, a driving component and oil liquid, wherein the frame is fixedly connected to the upper end of an injection head; the straightening component is erected in the middle of the interior of the frame; the driving component is erected on the portion, on one side of the straightening component, of the frame; the oil liquid is injected into the straightening component; the straightening component comprises supports and a rotating wheel; the supports are of an inclined U-shaped frame structure; the multiple supports are erected on the driving component at intervals in an annular mode; the rotating wheel is a long-cylinder-shaped metal wheel; the rotating wheel is obliquely and rotationally connected to the supports in the length direction; a coiled tubing penetrates through the middles of the annularly-distributed support areas; the axis of the coiled tubing coincides with the annularly-distributed axis of the rotating wheel; and the rotating wheel abuts against the outer surface of the coiled tubing. The coiled tubing centralizing device has the advantages that the coiled tubing can be centralized when entering the injection head, the coiled tubing with a certain bending degree is straightened, and the feeding process of the coiled tubing is smooth.

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 Applications(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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