Device for detection of a deposit fluid in a drilling annulus, at the site of a well head.

摘要

Device for detection of a deposit fluid in a drilling annulus, at the site of a well head. It comprises an emitter 11 and a receiver 12 of acoustic waves arranged slightly apart and facing one another, means linked to the emitter and able to generate at least one acoustic wave, means of transfer to the surface of the signals received by the said receiver and means able to process the said transferred signals, and it is characterised in that the emitter 11 and the receiver 12 are arranged at the site of the well heat and in a configuration such that they can be in contact with a mixture obtained by the introduction of the deposit fluid into the said drilling fluids. Application especially to underwater drilling. IMAGE