Mechanical underground caliper probe and application method

A mechanical and diameter measurement technology, which is applied in mechanical diameter measurement, measurement, earthwork drilling and mining, etc., can solve the problems of high cost, impossibility of application, strict requirements on detector performance and volume, and achieve easy disassembly and assembly, and convenient operation , cheap effect

Inactive Publication Date: 2013-07-10
DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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Problems solved by technology

However, such a method has a better effect on pipes or wells with larger inner diameters; however, when the inner diameter of the well is smaller, the performance and v

Method used

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  • Mechanical underground caliper probe and application method
  • Mechanical underground caliper probe and application method
  • Mechanical underground caliper probe and application method

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[0026] The device structure and use method of the present invention will be described with reference to the drawings.

[0027] The device structure of the present invention is as figure 1 Shown: a lifting ring 4 is installed on the upper end of the support rod 1, a counterweight 2 is installed on the lower end of the support rod 1, and a number of pairs of measuring arms 3 are installed on the support rod 1, that is, every two measuring arms 3 are a group , Symmetrically installed with the support rod 1 as the axis, and the measuring arms 3 of each group are evenly distributed into a circle. For the convenience of description, the present invention is described by taking only two measuring arms 3 as an example.

[0028] The structure of measuring arm 3 is as figure 2 As shown: a fixed block A309 is installed on the upper end of the slide bar 301, and a pressure sensor 308 is installed on the fixed block A309; a fixed block B310 is installed on the lower end of the slide bar 301; a...

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Abstract

The invention discloses a mechanical underground caliper probe and an application method. Through the pressure of a spring detected by a pressure sensor, the mechanical underground caliper probe indirectly calculates the internal diameter of a tube well; the mechanical underground caliper probe has the advantages of simple structure, simple and easy operation, convenience in maintenance, sensitive analysis, accurate measurement and the like; and the defect that the conventional mechanical caliper is not high in analysis sensitivity due to indirect detection through a sliding potentiometer is avoided.

Description

technical field [0001] The invention relates to a borehole caliper tester, in particular to a mechanical downhole caliper probe and an application method. Background technique [0002] In the process of oil exploration and mining, as well as in the detection of the infiltration line of tailings dams, it is necessary to penetrate various detection instruments into narrow and long casings or round wells. Causes and the like will gradually cause deformation, and if the deformation is too large, the measuring instrument will be damaged when the detecting instrument is penetrated into the long and narrow casing or the round well. Therefore, before the detection instrument is penetrated into the long and narrow casing or the round well, it is necessary to detect the internal dimensions of the casing or the round well. [0003] The traditional mechanical multi-arm caliper mainly drives the sliding potentiometer through the opening and closing of the test arm of the probe, and calc...

Claims

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Application Information

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IPC IPC(8): E21B47/08G01B5/12
Inventor 张伟佟超肖宪东毕文王群杜国军吕怀振孙天澳王羡张帅王文田苟强源蒋宝庆吕健丛浩杰
Owner DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
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