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Fidelity coring device experimental device and method based on multi-section temperature control feedback

A technology of experimental device and coring device, applied in sampling device, measuring device, temperature control and other directions, can solve the problems of inability to verify the pressure resistance performance of the pressure-holding chamber, inability to simulate high temperature environment, damage to the pressure-holding experimental chamber, etc. Reliable results, improved experimental efficiency, and reliable data

Pending Publication Date: 2020-08-07
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current experimental devices for fidelity coring can only be used for pressure experiments, and the real in-situ environment is usually a high temperature environment. Pressure resistance performance in high temperature environment
[0006] In addition, the existing pressure-holding test chamber is connected to the hydraulic pipeline by drilling holes on the wall of the cylinder. The drilling of the drilling rig will damage the pressure-holding test chamber, thereby making the experimental results unreliable

Method used

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  • Fidelity coring device experimental device and method based on multi-section temperature control feedback
  • Fidelity coring device experimental device and method based on multi-section temperature control feedback
  • Fidelity coring device experimental device and method based on multi-section temperature control feedback

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specific Embodiment approach 1

[0038] Such as figure 1 As shown, the fidelity corer experimental device based on multi-stage temperature control feedback disclosed by the present invention includes a pressure test chamber for simulating the fidelity corer fidelity chamber, and the pressure test chamber is arranged at intervals along the axial direction A plurality of electric heating devices 71 and a plurality of temperature measuring devices.

[0039] Each electric heating device 71 is connected with an automatic switch, and both the automatic switch and the temperature measuring device are electrically connected with the temperature controller. The automatic switch can choose a relay, and the temperature measuring device can choose a temperature sensor.

[0040] Wherein, the electric heating device 71 is arranged inside and / or outside the pressure test chamber. If the space is sufficient, all the electric heating devices 71 can be arranged inside the pressure test chamber; if the space is limited, a par...

specific Embodiment approach 2

[0072] In this embodiment, the electric heating device includes a graphene film. In order to facilitate the installation of the graphene film, the electric heating structure is fabricated by electroplating the graphene film on the aluminum cylinder. Specific as Figure 8 As shown, the graphene film 21 is plated on the inner cylinder wall of the aluminum cylinder 20, and the inner wall of the intermediate connector 13 is provided with an annular groove 19 for installing the aluminum cylinder 20, and the aluminum cylinder 20 electroplated with the graphene film 21 is embedded In the annular groove 19 of the inner wall of the intermediate connecting piece 13 . The depth of the annular groove 19 is set according to the thickness of the aluminum cylinder 20, for example, the depth of the annular groove 19 and the wall thickness of the aluminum cylinder 20 are both set to 3 mm.

[0073] The electric heating device on the test piece can be installed in the same way.

[0074] It sh...

specific Embodiment approach 3

[0076] The difference between this embodiment and Embodiments 1 and 2 is that: Figure 9 As shown, this embodiment also includes an external temperature control system 8 , a medium inlet 93 and a medium outlet 92 are provided on the box, and the medium inlet 93 and medium outlet 92 are connected to the external temperature control system 8 through pipelines.

[0077] The external temperature control system 8 includes two liquid tanks 81 and a pump 82, wherein the liquid in one liquid tank 81 is pumped to the medium inlet 93 of the tank by the pump 82, and the liquid in the tank is pumped from the medium outlet 92 by the other pump 82 To another liquid tank 81. The medium in the liquid tank 81 can be oil or water.

[0078] The external temperature control system 8 can be used as a heating system, and the medium in the liquid tank 81 is replaced with a heat medium, so that the pressure test chamber 10 can be heated externally, and the internal and external heating can be perfor...

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Abstract

The invention relates to a fidelity coring device experiment device and method based on multi-section temperature control feedback. The device comprises a pressure experiment cabin used for simulatinga fidelity cabin of the fidelity coring device, a medium injection hole is formed in a cabin body outer cylinder of the pressure experiment cabin, a plurality of electric heating devices and a plurality of temperature measuring devices are arranged on the pressure experiment cabin at intervals in the axial direction, and each electric heating device is connected with an automatic switch. According to the invention, a high-temperature environment can be simulated, the high-temperature environment can be provided for the pressure experiment cabin, the real in-situ environment can be restored, the experiment is more complete and objective, and the data is more reliable. Multi-section simultaneous heating and multi-point temperature control can be carried out on the pressure experiment cabin,the heating efficiency can be improved, the experiment efficiency is greatly improved, and the internal temperature can be more uniform.

Description

technical field [0001] The invention relates to the technical field of a coring device test system, in particular to a fidelity coring device experimental device and an experimental method based on multi-stage temperature control feedback. Background technique [0002] Mineral resources in the shallow part of the earth have been gradually exhausted, and marching into the deep part of the earth is an important direction for my country's scientific and technological innovation in the near future and in the future. The in-situ rock mechanical behavior of different deep host rock formations is the leading scientific and theoretical basis for deep drilling, deep resource development and utilization, and earth application science. [0003] The physical, mechanical, chemical and biological properties of deep rocks are closely related to their in-situ environmental conditions. The loss of in-situ environment during the coring process will lead to irreversible distortion of the physi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08G01M13/00G05D23/20
CPCG01N1/08G01M13/00G05D23/20
Inventor 高明忠谢和平李聪陈领吴年汉李佳南何志强杨明庆胡云起刘贵康
Owner SICHUAN UNIV
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