The invention relates to oil wells and/or gas wells and more particularly a device and a method for acquiring and transmitting data in the wells based on an equipped tubular component (1) which comprises an internal surface (2), an external surface (3) and a main axis (X), an internal antenna (4) which is located on the side of the internal surface (2), an external antenna (5) which is located on the side of the external surface (3), which may comprise an opening (6) which extends from the external surface (3) and opens onto the internal surface (2), an electrical conductor extending in said opening (6).