A simulation experiment device for interwell electrical dynamic monitoring of hydrate reservoirs

Abstract

The invention provides a hydrate reservoir interwell electrical dynamic monitoring simulation experiment device, comprising a hydrate electrical parameter dynamic monitoring module (1), a sediment physical parameter measurement module (2), a pore water ion analysis module (3), Hydrate synthesis and decomposition module (4), data acquisition and monitoring module (5). This application simulates the formation and exploitation process of natural gas hydrate in the sea area, and uses resistivity imaging as the main monitoring method to simulate the dynamic real-time monitoring of reservoir hydrate saturation by single monitoring well and double monitoring well; through the test experiment The changes in temperature, pressure and pore water ion concentration during the process provide an experimental platform for the establishment of electrical dynamic monitoring technology for hydrate-bearing reservoirs and its influencing factors; dynamic monitoring is realized through five integrated modules, with simple structure and high accuracy High, providing guidance for the study of 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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