Cross-well electrical dynamic monitoring simulation experiment device for hydrate reservoir

Abstract

The invention provides a cross-well electrical dynamic monitoring simulation experiment device for a hydrate reservoir. The cross-well electrical dynamic monitoring simulation experiment device for the hydrate reservoir comprises a hydrate electrical parameter dynamic monitoring module (1), a sediment physical property parameter measurement module (2), a pore water ion analysis module (3), a hydrate synthesis and decomposition module (4) and a data acquisition and monitoring module (5). According to the cross-well electrical dynamic monitoring simulation experiment device for the hydrate reservoir, by simulating the formation and exploitation process of sea-area natural gas hydrates in the reservoir, the dynamic real-time monitoring of a single-monitoring well and a dual-monitoring well onthe reservoir hydrate saturation is simulated by the main monitoring method of resistivity imaging; by testing the changes of temperature, pressure and pore water ion concentration in the experimentprocess, an experiment platform is provided for establishing a hydrate-containing reservoir electrical dynamic monitoring technology and studying influencing factors thereof; and by using five integrated modules for realizing dynamic monitoring, the cross-well electrical dynamic monitoring simulation experiment device for the hydrate reservoir is simple in structure and high in accuracy rate and provides guidance for studying the physical properties of natural gas hydrates.

Description

technical field [0001] The invention relates to the field of dynamic monitoring experiment devices for natural gas hydrates, in particular to a simulation experiment device for interwell electrical dynamic monitoring of hydrate reservoirs. Background technique [0002] Natural gas hydrate (NaturalGasHydrate / GasHydrate), organic compound, chemical formula CH 4 ·nH 2 O. Flammable ice is an ice-like crystalline substance distributed in deep-sea sediments or permafrost in land areas, formed by natural gas and water under high-pressure and low-temperature conditions. It is also called "combustible ice" or "solid gas" and "steam ice" because it looks like ice and can burn when exposed to fire. It's actually a solid block. 1 cubic meter of "combustible ice" can contain 164 cubic meters of methane gas and 0.8 cubic meters of water. "Combustible ice" is a secondary product of natural gas, and its application range is roughly the same as that of natural gas. It is a typical oil s...

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Problems solved by technology

[0005] In order to overcome the problem of insufficient research and development of the simulation experiment device for hydrate resistivity imaging monitoring around the simulated well and between the wells in the prior art, the present invention provides a simulation experiment device for the electrical dynamic monitoring between wells of hydrate reservoirs

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