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Underground exploring tube and three-component magnetic survey system

A three-component, three-axis magnetic technology, applied in three-component magnetometer, radio wave measurement system, measuring magnetic variables, etc., can solve problems such as poor detection ability

Pending Publication Date: 2020-10-27
中国地质科学院地球物理地球化学勘查研究所
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a downhole probe and three-component magnetic measurement system to solve the problem of poor detection ability in deep wells

Method used

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  • Underground exploring tube and three-component magnetic survey system
  • Underground exploring tube and three-component magnetic survey system
  • Underground exploring tube and three-component magnetic survey system

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Embodiment approach

[0040] Such as figure 1 As shown, according to an embodiment of the present invention, a downhole probe of the present invention includes: a housing 11, a three-component sensor module 12 arranged in the housing 11, and a data measuring device connected to the three-component sensor module 12 Modulation transmission module 13, power supply module 14 connected with three-component sensor module 12 and data measurement modulation transmission module 13. In this embodiment, a non-magnetic vacuum insulation tube 111 for enclosing the three-component sensor module 12 and the data measurement modulation transmission module 13 is arranged inside the casing 11 . The downhole probe of the present invention is used to operate at a depth of 3000m to 5000m. The downhole probe set above can still ensure a stable structure and stable internal components under the influence of factors such as mud and high temperature at the position. The internal environment of the work is beneficial to ens...

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Abstract

The invention relates to an underground exploring tube and a three-component magnetic survey system. The underground exploring tube comprises a shell (11), a three-component sensor module (12) arranged in the shell (11), a data measurement modulation transmission module (13) connected with the three-component sensor module (12), and a power supply module (14) connected with the three-component sensor module (12) and the data measurement modulation transmission module (13), wherein a non-magnetic vacuum heat preservation pipe used for wrapping the three-component sensor module (12) and the datameasuring, modulating and transmitting module (13) is arranged in the shell (11). The underground exploring tube is advantaged in that accuracy of deep positioning and inference interpretation of deep ore body (3000-5000m) exploration is improved, and a powerful support is provided for searching deep and hidden mineral resources.

Description

technical field [0001] The invention relates to the field of downhole survey, in particular to an underhole probe and a three-component magnetic survey system. Background technique [0002] The deep well high-precision three-component magnetic survey system is a set of borehole magnetic survey instruments composed of three major parts: high-precision borehole three-component probe, 5000m automatic winch and winch controller, and ground data acquisition system. It is the most effective geophysical equipment for finding magnetite deposits. Especially for deep ore bodies with a buried depth of more than 3000-5000m, the use of ground magnetic prospecting is powerless. The existing three-component magnetometer in the well in China cannot meet the requirements of deep exploration above 3000-5000m in terms of measurement accuracy and measurement depth, and can only be used in the middle and shallow parts (2000-3000m) with low measurement accuracy. How to solve the problem of deep...

Claims

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Application Information

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IPC IPC(8): G01V3/08G01R33/02G01R33/00E21B47/12
CPCE21B47/12G01R33/0082G01R33/0206G01V3/081
Inventor 李洋冯杰欧洋贾定宇王宇航翟景红刘东明梁明星
Owner 中国地质科学院地球物理地球化学勘查研究所
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