High-temperature well logging polar plate based on vacuum heat insulation technology

A technology of vacuum heat insulation and polar plates, which is applied in the direction of electric/magnetic detection, measurement, and measurement devices for well logging records, can solve the problems of shortened instrument life, low construction success rate, and increased cost. Upsizing, ensuring safety, and improving the effect of use

Pending Publication Date: 2022-07-29
CHINA PETROCHEMICAL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Solve the problem that some existing logging plates do not have any technology and measures to block external heat from entering the probe. Under the high-temperature borehole environment, the service life of the instrument is greatly shortened, the cost increases, and the construction success rate is extremely low.

Method used

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  • High-temperature well logging polar plate based on vacuum heat insulation technology
  • High-temperature well logging polar plate based on vacuum heat insulation technology
  • High-temperature well logging polar plate based on vacuum heat insulation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 As shown, a high-temperature logging electrode plate based on vacuum insulation technology includes a base shell 1, a base vacuum layer 7 and a base inner tank 10, the base shell 1 is welded with a base inner tank 10, the base shell 1 and the base inner tank 10 are welded A base vacuum layer 7 is formed between the bladders 10 , and the base consists of a base shell 1 , a base inner bladder 10 and a base vacuum layer 7 .

[0048] In this embodiment, as Figure 1-2 As shown in the figure, in order to further improve the sealing effect on the base and the upper cover, an upper cover shell 2 is arranged above the base shell 1, the surface of the upper cover shell 2 is welded with an upper cover inner tank 11, and the upper cover shell 2 and the upper cover An upper cover vacuum layer 6 is formed between the gallbladders 11. The upper cover is composed of an upper cover outer shell 2, an upper cover inner gallbladder 11 and an upper cover vacuum layer 6. The ...

Embodiment 3

[0050] like figure 1 As shown, a high-temperature logging electrode plate based on vacuum insulation technology includes a base shell 1, a base vacuum layer 7 and a base inner tank 10, the base shell 1 is welded with a base inner tank 10, the base shell 1 and the base inner tank 10 are welded A base vacuum layer 7 is formed between the bladders 10 , and the base consists of a base shell 1 , a base inner bladder 10 and a base vacuum layer 7 .

[0051] The difference between this embodiment and the above-mentioned embodiment is that:

[0052] In this embodiment, as Figure 1-4 As shown in the figure, in order to further improve the effect of reducing heat conduction, a wire channel 13 for placing the wire 9 is opened inside the base shell 1. The interior of the wire channel 13 is filled with an insulator 12, and the wire 9 passes through the wire channel 13. Or the circuit module 8 is connected with the pins on the pressure-bearing plug 3 to establish an electrical connection ...

Embodiment 4

[0054] like figure 1 As shown, a high-temperature logging electrode plate based on vacuum insulation technology includes a base shell 1, a base vacuum layer 7 and a base inner tank 10, the base shell 1 is welded with a base inner tank 10, the base shell 1 and the base inner tank 10 are welded A base vacuum layer 7 is formed between the bladders 10 , and the base consists of a base shell 1 , a base inner bladder 10 and a base vacuum layer 7 .

[0055] The difference between this embodiment and the above-mentioned embodiment is that:

[0056] In this embodiment, as Figure 1-4 As shown, in order to further improve the temperature stabilization effect, the interior of the base inner tank 10 is provided with a heat absorbing body 14, the heat absorbing body 14 is made of a phase-change constant temperature material, and the front end of the heat absorbing body 14 is connected with a circuit module 23; A plate inner cavity 15 is formed between the base liner 10 and the sensor or ...

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Abstract

The invention relates to the technical field of geophysical logging, in particular to a high-temperature logging polar plate based on a vacuum heat insulation technology. A high-temperature well logging polar plate based on the vacuum heat insulation technology comprises a base shell, a base vacuum layer and a base inner container, the base inner container is welded in the base shell, the base vacuum layer is formed between the base shell and the base inner container, and a base is composed of the base shell, the base inner container and the base vacuum layer. The high-temperature well logging polar plate based on the vacuum heat insulation technology has the beneficial effects that heat transmission between a well hole and the interior of the polar plate can be blocked, temperature rise in the polar plate can be prevented or slowed down, the temperature resistance of the well logging polar plate is improved, the interior of the heat absorbing body is made of a phase-change constant-temperature material, namely, a material with high specific heat capacity, and after heat is absorbed, the heat absorbing body can absorb heat rapidly. The temperature rise is very small, so that the internal temperature of the polar plate is kept relatively constant, the internal temperature rise range is within a designed index, and the safety during use is ensured.

Description

technical field [0001] The invention relates to the technical field of geophysical logging, in particular to a high-temperature logging electrode plate based on vacuum heat insulation technology. Background technique [0002] In the field of geophysical exploration, some plates need to be embedded with sensors and circuit modules in order to obtain the ideal signal-to-noise ratio. In recent years, with the development trend of instrument miniaturization and integration, many products have integrated more circuits directly inside the plate, and directly realize more functions such as signal reception, conditioning, and acquisition inside the plate. The digital signal is finally output. [0003] At present, the logging pad does not have any technology and measures to block the external heat from entering the probe. The more common method in the industry is to improve the temperature performance of the logging pad by screening components and sensors with good temperature resis...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B47/017G01V3/18G01V5/04
CPCE21B47/00G01V3/18G01V5/04
Inventor 葛承河刘磊刘春莹于云华张守伟李海温建平孙峰
Owner CHINA PETROCHEMICAL CORP
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