Test cable and test pipe column

A technology for testing pipes and cable cores, which is applied in the directions of measurement, wellbore/well components, connections where permanent deformation plays a role, etc., and can solve the problem of low bearing capacity of test pipe strings

Active Publication Date: 2016-07-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a test cable and a test string to solve the problem of low bearing capacity of the test string in the prior art

Method used

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  • Test cable and test pipe column
  • Test cable and test pipe column
  • Test cable and test pipe column

Examples

Experimental program
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Embodiment Construction

[0031] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] Such as Figures 5 to 10 As shown, according to the embodiment of the present invention, the test cable includes a test cable capillary 11 , a test cable core 12 and a connecting wire 13 .

[0033] Wherein, the test cable capillary 11 has a receiving through hole 111 penetrating through the test cable capillary 11 in the axial direction. The test cable capillary 11 is used to accommodate the test cable core 12 . The test cable core 12 is arranged in the receiving through hole 111 of the test cable capillary 11, and the first end of the test cable core 12 is located between the first end of the test cable capillary 11 and the second end of the test cable capillary 11, and the test cable Ther...

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PUM

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Abstract

The invention provides a test cable and a test pipe column. The test cable comprises a test cable capillary pipe, a test cable core and a connecting wire, wherein the test cable capillary pipe is provided with an accommodating through hole penetrating through the test cable capillary pipe in the axial direction; the test cable core is arranged in the accommodating through hole of the test cable capillary pipe; the first end of the test cable core is positioned between the first end of the test cable capillary pipe and the second end of the test cable capillary pipe; a first axial distance is formed between the first end of the test cable core and the first end of the test cable capillary pipe; and the connecting wire extends into the test cable capillary pipe from the first end of the test cable capillary pipe, and is connected with the test cable capillary pipe in a press connecting way. The force bearing capability of the test cable is high.

Description

technical field [0001] The invention relates to the field of oilfield test equipment, in particular to a test cable and a test pipe string. Background technique [0002] During the SAGD horizontal well test, it is necessary to use the test string to test the downhole temperature and pressure of the horizontal well, such as figure 1 As shown, the carrier of the test string is a coiled tubing 2 with a length of 500m-800m and an inner diameter of 26.2mm, which contains 3-4 test cables 1, such as Figures 2 to 4 As shown, in the process of making the test string, it is necessary to use a steel wire 3 with a diameter of 2.4mm to connect the test cable 1, overcome the friction force of about 2kN and drag it to the inside of the coiled tubing 2, so far the production of the test string is completed, and the carrier of the test cable 1 The outer diameter of the capillary 1b is 6.35mm, and the cable core 1a is set in the capillary 1b. Because the diameter of the capillary is small, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/06H01R4/18
Inventor 芦志伟韩吉声潘勇吴志凯努尔买买提李士建邱福寿游红娟黄建波李林
Owner PETROCHINA CO LTD
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