A three-dimensional comprehensive test mining system for large-scale full-scale mining wells

Abstract

The invention discloses a three-dimensional comprehensive experimental production system for large-scale and full-scale production wells, which includes: a reaction kettle for preparing natural gas hydrate samples, and truly simulating the natural gas hydrate accumulation environment in seabed sediments; the reaction kettle includes a reaction The kettle body and the upper kettle cover installed on the upper end surface of the reactor body and the lower kettle cover installed on the lower end surface of the reactor body; the gas injection module is used for quantitatively injecting gas into the reactor during hydrate synthesis; the liquid injection module is used for hydration Quantitative injection of liquid into the reaction kettle during compound synthesis; temperature control module, used to control the temperature in the reaction kettle; data collection, processing and display module, used to collect, store, process and display the data during the test mining system. This system can prepare natural gas hydrate samples, and carry out simulation research on mining tests such as depressurization and heat injection under different well pattern layouts; study hydrate decomposition, gas-liquid seepage, heat transfer, and sediment stability during the mining process.

Description

technical field [0001] The invention relates to the field of natural gas hydrate exploitation, and specifically relates to a three-dimensional comprehensive experimental exploitation system for large-scale full-scale exploitation wells. Background technique [0002] Deep-sea oil and gas resources are considered to be an important frontier of the oil industry, and deep-water and ultra-deep-water oil and gas resources have become a hot spot in the development of Western developed countries such as the United States and Britain. The main resource of natural gas hydrate buried at a sea depth of 1-3km is generally considered to be an unconventional oil and gas resource with huge undeveloped reserves, and it is also one of the most potential alternative energy sources in the 21st century. Its huge resource potential has attracted countries all over the world to continue to deepen their work in exploration, test mining, and supporting environmental impact assessment. The United St...

AI Technical Summary

Problems solved by technology

[0008] (3) The environmental conditions of the test simulation are becoming more and more harsh

[0009] With the deepening of field sampling of natural gas hydrate, the accumulation environment of natural gas hydrate has become more and more clear, and new challenges have been posed by the reactor test simulator

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