Radiating method for high-power device of logging instrument
A technology of high-power devices and logging instruments, which is applied in the direction of cooling/ventilation/heating transformation, modification through conduction heat transfer, etc., can solve the problems of poor heat dissipation and increased cost of high-power devices, and achieve convenient and fast installation and reduce The effect of working temperature and simple operation
Inactive Publication Date: 2016-06-15
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
[0004] Based on the above deficiencies in the prior art, the technical problem solved by the present invention is to provide a heat dissipation method for high-power devices in well logging instruments, improve the poor heat dissipation effect of high-power devices in well logging instruments, and increase the cost of setting auxiliary heat dissipation equipment The problem
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[0024] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. As a part of this specification, the principles of the present invention will be described through examples. Other aspects, features and advantages of the present invention will become clear through the detailed description. In the referenced drawings, the same reference numerals are used for the same or similar components in different drawings.
[0025] Such as figure 1 As shown, the heat dissipation method flow chart of the high-power device in the logging instrument of the preferred embodiment of the present invention, the logging instrument of the present invention adopts special equipment to measure the physical properties of rocks in a certain range along the borehole (drilling profile). The physical properties include the electrochemical properties, electrical conductivity, acoustic properties, radioactivity and neutron properties ...
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The invention discloses a radiating method for a high-power device of a logging instrument used for production logging. The radiation method comprises the steps of installing a substrate, a high-power device and a radiator on a framework in the logging instrument; enabling the radiator and the logging instrument shell to be in full contact; absorbing the heat from the high-power device through the heat capacity of the framework and the logging instrument shell; conducting the heat from the high-power device to the underground environment through the radiator, the framework and the logging instrument shell; and taking away the heat from the high-power device through ground floor fluids (such as oil or an oil-water mixture) flowing through the surface of the logging instrument shell so as to lower the working temperature of the high-power device. According to the radiating method, the heat from the high-power device is absorbed through the heat capacity of the logging instrument shell; the heat from the high-power device is conducted to the underground environment; therefore, the radiation of the high-power device in the logging instrument operating in a high-temperature underground environment for a long time can be realized without adding an extra apparatus (such as a vacuum bottle and a heat absorbent), so that the radiating method is particularly suitable for solving the problem existing in radiation of the high-power device of the logging instrument.
Description
technical field [0001] The invention relates to the technical field of well logging, in particular to a heat dissipation method for high-power devices in well logging instruments. Background technique [0002] Well logging instrument is a measuring device designed for reservoir oil and gas production evaluation, seismic analysis, and quantitative evaluation of oil and gas layers by using electrical, nuclear, and acoustic measurement methods. Logging instruments generally have a cylindrical structure, which can continuously provide original measurement parameters related to porosity, lithology, oil and gas existence, and other rock properties of the target layer during measurement. The production logging instrument is a technical means to monitor the development dynamics of oil and gas fields. It is used in injection wells and production wells after well completion to obtain production logging solutions in horizontal wells, deviated wells and vertical wells, and accurately id...
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IPC IPC(8): H05K7/20
CPCH05K7/2039
Inventor 程晶晶高双陶爱华
Owner HUAZHONG UNIV OF SCI & TECH