Drilling equipment e.g. drilling vehicle used in injection drilling probe system, has flushing and injection channel that is opened by closure element of check valve with use of flushing/injection fluid toward geological formation

摘要

The drilling equipment (100) has a pump assembly (101) for pumping the flushing fluid/injection fluid. A drive device (105) is provided with a clamping head (109) attached to drill string. A flushing and injection channel of drill head (107) is closed by closure element of check valve without the use of the flushing/injection fluid toward the geological formation. The flushing and injection channel is opened by closure element of check valve with the use of the flushing/injection fluid toward the geological formation.