In-parallel reaction kettles and reaction-kettle-based device for testing induction time of hydrates

Abstract

The invention relates to in-parallel reaction kettles and a reaction-kettle-based device for testing the induction time of hydrates, and belongs to the technical field of hydrates. The in-parallel reaction kettles are arranged annularly and comprise eight equidistant high pressure-resistant stainless steel reaction kettles, wherein an upper flange plug and a lower flange plug are arranged on each reaction kettle; an interface is formed in the center of an upper flange and is used for connecting a temperature sensing system (a thermoelectric couple); a lower flange is provided with an interface for the injection of air and liquid and vacuumizing; and different hydrates can be added into the reaction kettles to generate induction factor impact factors. The testing device consists of the in-parallel reaction kettles, a temperature control system, an air supply pressurization system, a liquid supply system, a computer data acquisition system, a vacuum pump and a safety valve. By the in-parallel reaction kettles and the reaction kettle-based device, influencing factors of induction time in the process of generating the hydrates can be measured, the condition of the influence of each induction factor on the generation of the hydrates can be found, and the problem of long test period due to slow generation of the hydrates is solved. Simultaneously, the influence degree of different influencing factors on the induction time in the process of generating the hydrates can be tested accurately and efficiently by combining a cross-over experiment.

Description

technical field [0001] The invention belongs to the technical field of hydrate application, and relates to a hydrate formation process induction time test device and a parallel reaction kettle. Background technique [0002] Natural gas hydrate is considered to be a clean and efficient potential energy source with abundant reserves. my country has successively discovered natural gas hydrates in seabed sediments and permafrost areas, and experts predict that my country has huge reserves of natural gas hydrates. [0003] Accurate assessment of gas hydrate reservoirs is critical to their exploitation. Hole coring is one of the effective evaluation methods. During the process of drilling and coring, changes in temperature and pressure are accompanied by the formation and decomposition of gas hydrates, which have a great impact on the accuracy of evaluation. Accurate measurement of gas hydrate induction time is of great significance for analyzing the formation process of gas hy...

AI Technical Summary

Problems solved by technology

It provides a reliable and efficient test system for the test of the induction time of the hydrate formation process, which solves the interference problem of various influencing factors in the test process of the hydrate induction time, and uses its influencing factors and the mechanism of the hydrate induction time Conduct analysis to lay a theoretical basis for various hydrate utilization technologies

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