Abstract: A pipe plugging system useful for plugging oil well pipes for stopping oil flow from an oil well pipe. An inflatable plug is insertable on a tube through the top of the pipe and is inflated by a fluid under pressure released into he plug to expand the plug against the pipe wall. A blocker at the lower end of a carrier conduit expands out to block upward expansion of the flexible plug to force the plug to press against the inside the oil pipe on all sides. A gauge valve is installed on the pipe, to control oil flow, while the well pipe is held shut by the plug. A check valve, installed in the top of the tube, holds pressure in the tube, but is openable by pressure from a remotely controlled valve opening assembly to deflate the plug for tube removal, leaving the pipe closable by the check valve to control flow through the pipe into useful places. A guide removably placed around the tube guides the tube into an oil well casing deep in a pool of oil.