Open type natural gas generating kinetics research device and use method thereof

Abstract

The invention discloses a open-type natural gas generating dynamics research device and method, aims at providing a experiment device that structure is easy, reliability is high, operation is convenient, cost of analysis is low, the technique scheme includes high-pressure gas source, flow controller, sample pyrolyzer, several air vessels, vacuumized device and main controller, it controls hydrocarbon gas generated by sample in different temperature interval via valve transforming controller controlled by main controller to enter different air vessels, when course of storing gas of the first air vessel is over, gas phase chromatogram can be used to analyze component of gas on-line, and component of gas can be analyzed to determine the nature and quantitative analysis and carbon isotope and hydrogen / deuterium isotope analysis, dynamics parameter generated by natural gas can obtained based on temperature heat simulating and corresponding gas stored in air vessels; the invention can be used in single constituent natural gas generating dynamics research.

Description

technical field [0001] The invention relates to an experimental analysis technology, in particular to an open natural gas generation kinetics research device for the study of single-component natural gas hydrocarbon generation kinetics, and also relates to a method for using the device. Background technique [0002] At present, there are no commercial instruments for the study of single-component natural gas hydrocarbon generation kinetics at home and abroad, and a few research institutions use self-made research devices for research. Known is the online pyrolysis-isotopic analysis method employed by the German Research Center for Geosciences. The principle of this method is that the hydrocarbon gas produced by pyrolysis is carried by the carrier gas, through the conversion of the six-way valve, and intermittently enters the isotope mass spectrometer for analysis. The advantage is that the cold trap is omitted, and the disadvantage is that the structure is relatively complic...

AI Technical Summary

Problems solved by technology

It is reported that due to the low concentration of methane analyzed online, the analysis error is as high as 1.5‰

However, the concentration of ethane and propane is far lower than that of methane, which cannot reach the minimum concentration required for analysis. In fact, it is impossible to do isotopes of ethane and propane.

In addition, the thermal simulation is carried out under normal pressure, which is far from the natural geological conditions, so its application effect is limited

Images