METHOD FOR MONITORING CEMENT PLUGS

摘要

A method for method of monitoring the parameters of a cement plug (2) in a wellbore comprises; pumping a cement slurry down a wellbore to form a cement plug (2); providing a cable (1) through the cement plug (2) before the cement plug sets, wherein the cable comprises a sensor (4) for monitoring parameters of the cement plug; locating the sensor at the bottom of the cement plug (2); operating the sensor to measure parameters of the cement plug; and transmitting information regarding the measurement to the surface.