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A Wellhead Cable Guide Fixing Device for Well Logging

A fixing device and cable technology, applied in cable installation, cable layout between relative moving parts, wellbore/well parts, etc., can solve difficult cable guiding direction adjustment, increased cable and pulley friction, easy corrosion and damage and other problems, to achieve the effect of simple structure, good protection and strong practicability

Active Publication Date: 2021-10-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing logging device guides the wellhead cable, the cable is guided deep through the pulley, and the cable swings, which increases the friction between the cable and the pulley, and the cable is exposed outside and its skin is easy to corrode and damage. The wellhead in the downhole is turned and it is not easy to adjust the direction of the cable guidance

Method used

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  • A Wellhead Cable Guide Fixing Device for Well Logging
  • A Wellhead Cable Guide Fixing Device for Well Logging
  • A Wellhead Cable Guide Fixing Device for Well Logging

Examples

Experimental program
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Effect test

Embodiment 1

[0023] see Figure 1~4 , in an embodiment of the present invention, a wellhead cable guiding and fixing device for well logging includes an installation frame 1 and a fixing bracket 29, the installation frame 1 is installed on the fixing bracket 29 and two first cables are arranged on the installation frame 1 Guide channel 2, the bottom end of each first cable guide channel 2 is provided with a second cable guide channel 3, and the first cable guide channel 2 and the second cable guide channel 3 have an arc transition and pass through the hinge seat 6 phases are hinged, the side wall of the second cable guide channel 3 is provided with a connecting column 30 and the first cable guide channel 2 is provided with an angle adjustment screw 7, and the angle adjustment screw 7 is provided with a spiral fit The angle adjustment screw sleeve 8 and the side part of the angle adjustment screw sleeve 8 slide up and down with the side wall of the first cable guide channel 2, and the end o...

Embodiment 2

[0031] see figure 1, the difference between the embodiment of the present invention and embodiment 1 is that: the two ends of the installation frame 1 are provided with a bottom plate 23 and the fixed bracket 29 is provided with a height adjusting screw 24 and a vertical guide rod 26, the height The bolt at the lower end of the adjusting screw rod 24 runs through the bottom supporting plate 23 on the same side and is rotationally connected with the upper end surface of the fixed bottom plate 10, and the bottom end of the vertical guide rod 26 slides through the other bottom supporting plate 23 and is fixedly connected with the upper end surface of the fixed bottom plate 10. The height adjustment screw mandrel 24 top is driven and rotated by the height adjustment motor 25 that is arranged on the top of the fixed bracket 29; 26, the height of the installation frame 1 and the first cable guide channel 2 can be adjusted to adjust the height of the wellhead to facilitate the layout...

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Abstract

The invention discloses a wellhead cable guiding and fixing device for well logging, which comprises a mounting frame and a fixing bracket. The bottom ends of the cable guide channels are all provided with a second cable guide channel, and the first cable guide channel and the second cable guide channel have an arc transition and are hinged by hinge seats. The side walls of the second cable guide channel A connecting column is arranged on the top and an angle adjustment screw is arranged on the first cable guiding channel, an angle adjusting screw is arranged on the angle adjusting screw, and the side part of the angle adjusting screw is slid up and down with the side wall of the first cable guiding channel. The side wall of the angle adjustment screw sleeve is provided with an adjustment push-pull rod whose top is hinged to it, and the bottom end of the adjustment push-pull rod is hinged with the connecting column. The invention has a simple structure, can protect the cable from being introduced into the logging well, and is convenient to adjust the direction of its introduction, and has strong practicability.

Description

technical field [0001] The invention relates to the technical field of well logging devices, in particular to a wellhead cable guiding and fixing device for well logging. Background technique [0002] Well logging, also called geophysical well logging, is a method of measuring geophysical parameters by using the electrochemical properties, electrical conductivity, acoustic properties, radioactivity and other geophysical properties of rock formations, which is one of the applied geophysical methods. During oil drilling, logging must be carried out after drilling to the designed depth, also known as completion electrical logging, to obtain various petroleum geology and engineering technical data as raw data for completion and development of oil fields. This logging habit It is called open hole logging. The second series of logging after the casing is run in the oil well is customarily called production logging or development logging. The development of production logging has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/02H02G11/00E21B47/00
CPCE21B47/00H02G3/02H02G11/00
Inventor 张鹏济潘保芝郭宇航张丽华
Owner JILIN UNIV