Full-automatic shale gas content testing analyzer

Abstract

The invention relates to a full-automatic shale gas content testing analyzer which comprises a desorbing device, a gas detection device, a data acquisition box and a host computer, wherein the desorbing device consists of a constant temperature water bath box and two desorbing tanks; the desorbing tanks are arranged in the constant temperature water bath box; shale samples can be rapidly put into the desorbing tanks; the gas detection device comprises a box body, a measuring cylinder, a gas collecting bottle and a pressure sensor; a liquid inside the bottle is pressed into the measuring cylinder by a shale gas collected into the gas collecting bottle; the data acquisition box comprises an acquisition box frame, a front panel, a rear panel and a hardware circuit; the hardware circuit is provided with a power supply module, a signal receiving module and a signal processing module; the data acquisition box is used for acquiring a signal detected by the detection device, and used for performing analog-to-digital to transmit to the host computer; the host computer is used for displaying, storing and analyzing the signal. The analyzer provided by the invention is scientific in design and convenient to rapidly disassemble, package and carry over. By adopting the analyzer, full-automatic measurement in the whole gas desorbing process can be achieved, and the measurement precision is high.

Description

technical field [0001] The invention relates to an analyzer for testing and analyzing the gas content of shale, in particular to an instrument for testing and analyzing the gas content of shale by using a desorption method, which belongs to the field of oil and gas exploration. Background technique [0002] According to the research results of "National Shale Gas Resource Potential Investigation and Evaluation and Favorable Area Selection" released by the Ministry of Land and Resources in 2012, the geological resource potential of my country's land shale gas is 134.42 trillion m 3 , the recoverable resource potential is 25.08 trillion m 3 . The development potential of shale gas is huge, but the development of this field in my country is still in its infancy, especially the equipment for measuring and evaluating shale gas content is far from meeting the current needs. [0003] Shale gas content is a key parameter to evaluate the original gas volume of shale, and it is of g...

AI Technical Summary

Problems solved by technology

The measurement accuracy of foreign equipment is high, the degree of automation is high, and the stability is good, but the price is expensive and its built-in algorithm is not suitable for the evaluation of domestic shale gas content; in recent years, some new types of shale gas desorption measurement have been developed in China. Equipment, such as the patent number 201010137275.1 of the "Adsorbed Gas Content Measuring Instrument and Its Experimental Method" published in 2010, has the disadvantages of low measurement accuracy, manual reading, manual data processing, and inconvenient portability; the Chongqing Geological The "Portable Measuring Instrument for Shale Gas Content" applied by the Institute of Mineral Resources, the patent number is 201220640816.7, due to the purpose of portable measurement, the measuring instrument is limited by the volume of the instrument and other aspects, the structure is relatively simple, the degree of automation is relatively low, and the measurement The operation steps are completed manually

There is also "a new type of shale gas content tester and shale gas content measurement method" applied by Hengtai Shanghe Energy Technology (Beijing) Co., Ltd. in 2013. The patent number is 201210592194.X. The tester has artificial Recording and processing data, complex operation process, lack of measurement of gas temperature after desorption

All the above equipments need to manually record and process data, and there is incompleteness in the measurement of the desorption environment. Therefore, the measurement error is large, the degree of automation is low, the labor intensity of the operators is high, and it is difficult to meet the requirements of rapid desorption on site.

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