UNDERGROUND RESOURCE MINING METHOD USING HYDRAULIC PRESSURE FRACTURING METHOD, AND HYDROLYZABLE ANTIBLOCKING AGENT ADDED TO FLUID USED IN HYDRAULIC PRESSURE FRACTURING

摘要

PROBLEM TO BE SOLVED: To provide a method of mining that collects an underground resource through a crack formed from a well using fluid, the method suppressing gas outflow from the crack and the fluid inflow into the crack for a certain period of time.SOLUTION: In an underground resource mining method, the underground resource is collected through cracks formed and developed by pressurizing fluid filled in a well where a crack has been formed, and the mining method includes a step for adding a hydrolyzable antiblocking agent, which blocks a hydrolyzable material that temporarily closes the cracks.SELECTED DRAWING: Figure 1