Mining structure of natural gas hydrate reservoir and natural gas hydrate mining method of hydraulic lime injection by gas crushing

摘要

Problem to be solved: to provide a method for mining hydraulic lime injection by gas breakage into a natural gas hydrate reservoir.Solution 10 includes a mining structure of a natural gas hydrate reservoir 5 comprising a well 9 located in the natural gas hydrate reservoir 5 and a fracturing crack 10 communicating with the well 9, and the fracturing ring A gas 11 containing calcium oxide powder is provided.The calcium oxide powder is carried to the fracturing crack 10 with gasAfter 9 pressure reductionThe water produced by the decomposition of natural gas hydrate at fracturing crack 10 reacts with calcium oxide to release a large amount of heatProvides the heat necessary for the decomposition of natural gas hydratesIn addition to increasing the decomposition rateIt is also possible to form a high porosity calcium hydroxide filler.Franchise crack 10 supports support as well asBecause of good permeabilityImprove the gas generation rate of natural gas.Diagram