A well drilling head comprises a well drilling head housing, a bearing assembly, a first lubricant manifold and a second lubricant manifold. A downhole logging tool having a plurality of spaced antennas, at least one of which is a transverse antenna, at least two of which are tilted antennas, and at least two of which are axial antennas is provided. One system and method according to the present invention allows a user to display an indicator and to set an actionable status message which indicates to other users the media content that the first user is experiencing. The first area is electrically coupled to the fourth area, and the second area is electrically coupled to the third area. A library for verification including the calculated characteristic data and format information of a reference library is generated in the same format as the reference library. The device comprises temporary storage device designed to continuously record the multimedia data received in programme form and permanent storage device, capable of selectively transferring programmes from the temporary storage device to the permanent storage device.