Well plugging apparatus and temporary well plugging method

摘要

An object of the present invention is to provide a well plugging apparatus configured to reduce an expense and shorten a process for well drilling and a temporal plugging method of a well using the well plugging apparatus. The well plugging apparatus according to the present invention is a well plugging apparatus that includes a downhole plug, a setting tool (2) to operate and install the downhole plug, and an obstacle that plugs a flow path in the downhole plug. Since the setting tool (2) internally includes the obstacle, after the downhole plug is installed inside the well, and the setting tool (2) is removed, the flow path in the downhole plug can be reliably plugged in a short time. Additionally, the use of the well plugging apparatus of the present invention allows temporarily plugging the well reliably in a short time.