Compagnie Du Sol

Giovanni Aiello

The present invention relates to a drill string fitted with information transmission means. The hollow rods of conductive material have their inside faces covered in an insulating material. The transmission means comprise a first electrical unit having at least a first annular electrode secured to the insulating inside face of the drill string, said electrode being in electrical contact with the mud contained inside the drill string so as to establish a flow of current in the conductive mud; and a second electrical unit disposed in said borehole, close to the top end of the drill string in order at least to receive the information contained in said electrical current.

Drill string enabling information to be transmitted

The invention relates to a hollow drilling rod for transmitting information, said rod being for placing in a borehole filled with drilling mud. The rod comprises an electrically conductive cylindrical wall () having an inside face, an outside face, a first end provided with a male coupling sleeve (), and a second end provided with a female coupling sleeve (), and being characterized in that it further comprises:

Growing community of inventors

Nanterre, France

Giovanni Aiello