Active underground instrument heat management system and method

Abstract

The invention discloses an active underground instrument heat management system and method. The active underground instrument heat management system comprises a pressure bearing cavity, a heat preservation cavity, fins, a chip box, a semiconductor chilling plate, a heat conduction copper block and a semi-arc copper shoe, wherein a notch is formed in the position, close to the top, of the heat preservation cavity; the chip box is installed in the notch; the semiconductor chilling plate, the heat conduction copper block and the semi-arc copper shoe are installed inside the chip box in sequence; the cold end of the semiconductor chilling plate is tightly attached to the chip box; the heat end of the semiconductor chilling plate is tightly attached to the heat conduction copper block which is tightly attached to the semi-arc copper shoe; the semi-arc copper shoe is located on the outer surface of the heat preservation cavity; the fins are arranged in the heat preservation cavity; the tops of the fins are fixed outside the chip box; seal end caps are arranged at the two ends of the heat preservation cavity; the heat preservation cavity is formed inside the pressure bearing cavity; and the semi-arc copper shoe is in contact with the inner surface of the stainless steel pressure bearing cavity. By arranging a cooling device inside to protect a normal-temperature electronic component, continuous cooling and heating management on the temperature field inside a logging instrument is achieved, and high-temperature well logging is achieved through a normal-temperature chip.

Description

Technical field [0001] The invention relates to the technical field of downhole high temperature instruments in petroleum exploration and exploitation, and particularly relates to an active downhole instrument thermal management system and method. Background technique [0002] In the oil drilling industry, it is often necessary to measure and analyze parameters such as geological structure and oil reservoir resources. It is usually necessary to extend special electronic instruments into the borehole to measure the relevant physical quantities, and to record the formation parameters at various depths downhole in detail. This is the so-called logging. In the process of oil drilling and extraction, a lot of logging activities are often required. In addition, logging is often used in groundwater, geothermal, and mineral exploration activities. [0003] Generally, the deeper the wellhead, the higher the temperature and pressure of the downhole environment. Generally, the downhole te...

AI Technical Summary

Problems solved by technology

The problem is that the price of high-temperature chips is generally very expensive, and the life span is generally short

More importantly, high-temperature chips are usually protection products internationally, and their export is strictly controlled, making it very difficult to purchase.

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