Blow out preventer (bop) corroborator

A corroborator to assist operation of a submerged well blow out preventer (BOP) attached to a pipe from the well to topside, the corroborator in communication with a mud tank or other surface facility data points, comprising:

• a processor having an interface that provides a level of contents of the mud tank or other surface facility data and having a direct communication link to topside;
• a flow meter attached external to the pipe to measure a flow inside the pipe that provides a signal representative of the flow to the processor;
• a pipe joint locator to determine locations of a plurality of joints in the pipe which provides information regarding the locations to the processor;
• and
• a ram seal confirmation agent, to detect vibrations from an interior of the pipe after the pipe has been sealed by a ram which provides a measure of the vibrations to the processor;
• wherein the processor provides information related to the level or other surface facility data, the flow, the locations and the vibrations to topside over the communication link.