Simulation device and method for co-production of conventional natural gas reservoir and methane hydrate reservoir

Abstract

The invention discloses a simulation device and method for the combined production of a conventional natural gas reservoir and a methane hydrate reservoir. The simulation device includes a water supply device, a gas supply device, a methane hydrate reservoir simulation device, a high-pressure liquid separation bag, A natural gas reservoir simulation device, a gas production device, a monitoring device, and a temperature adjustment device; the water supply device is connected to the methane hydrate reservoir simulation device and the conventional natural gas reservoir simulation device respectively, and the gas supply device is respectively connected to the The methane hydrate reservoir simulation device is connected with the conventional natural gas reservoir simulation device, the inlet of the high-pressure liquid separation bag is connected with the methane hydrate reservoir simulation device, and the gas outlet and the liquid outlet of the high-pressure liquid separation bag are both It is connected with the conventional natural gas reservoir simulation device, and the gas recovery device is respectively connected with the methane hydrate reservoir simulation device and the conventional natural gas reservoir simulation device. The invention can realize combined production of natural gas reservoir and methane hydrate reservoir.

Description

Technical field [0001] The present invention relates to the field of energy mining, and more particularly to an simulation apparatus and method for conventional natural gas reservoirs and methane hydrate reservoirs. Background technique [0002] Since the decomposition of 1-member alkane hydrate can release 164-square-methane, it is widely present in a very cold region or a submarine environment, which has huge reserves distribution, so it has been subjected to various countries as a potential clean energy in recent years. attach great importance to. From the existing studies, although the antihypertensive method, the injection method, the injection division, the mixing method is an effective method of methane hydrate, and the effectiveness of these techniques is also proven from the procedure of the mixed hydrate. However, these techniques do not support the development of methane hydrate reservoirs to achieve continuous mining, in which the non-homogeneity of hydrate distributi...

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Problems solved by technology

Existing studies have shown that although depressurization, heat injection, chemical agent injection and mixed methods are all effective methods for methane hydrate production, the effectiveness of these technologies has also been proved from previous hydrate test production processes , but these technologies cannot support the development of methane hydrate reservoirs to achieve continuous production. The important reasons are the heterogeneity of hydrate distribution and the low reserves per unit reservoir. The simple development of hydrate reservoirs may make the hydrate The economic value of the material reservoir is greatly reduced

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