Three-dimensional comprehensive test mining system for large-scale full-size mining well

Abstract

The invention discloses a three-dimensional comprehensive test mining system for a large-scale full-size mining well. The three-dimensional comprehensive test mining system comprises a reaction kettle, a gas injection module, a liquid injection module, a temperature control module and a data acquisition, processing and display module, wherein the reaction kettle is used for preparing a natural gashydrate sample and truly simulating a natural gas hydrate reservoir forming environment in a seabed settled layer; the reaction kettle comprises a reaction kettle body, an upper kettle cover mountedon the upper end face of the reaction kettle body and a lower kettle cover mounted on the lower end face of the reaction kettle body; the gas injection module is used for quantitatively injecting gasinto the reaction kettle in a hydrate synthesis process; the liquid injection module is used for quantitatively injecting liquid into the reaction kettle in the hydrate synthesis process; the temperature control module is used for controlling the temperature in the reaction kettle; and the data acquisition, processing and display module is used for acquiring, storing, processing and displaying data when the test mining system is used for testing. The system disclosed by the invention can be used for preparing the natural gas hydrate sample and carrying out simulation researches on mining testsincluding pressure reduction, heat injection and the like under different well pattern arrangement forms; and hydrate decomposition, gas-liquid seepage and heat transfer and sediment stability in a mining process are researched.

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...

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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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