The invention belongs to the technical field of
well logging, and discloses an
optical fiber multi-parameter
well logging device which comprises a
cart, a placing table is fixedly installed at the top end of the
cart, a main control box is arranged at the top end of the placing table, an electric
capstan is fixedly installed at the position, below the placing table, in the
cart, and a
well logging cable is wound on the outer surface of the electric
capstan. A telescopic supporting arm is fixedly installed at one end of the cart, a well descending
pulley is fixedly installed at one end of the telescopic supporting arm, a depth counter is fixedly installed at one end of the well descending
pulley, the outer surface of the
logging cable is slidably connected to the outer surface of the well descending
pulley, and a
logging assembly is fixedly connected to one end of the
logging cable. The height change of the logging
assembly can be automatically achieved, the situation that when the position of the logging
assembly needs to be finely adjusted, fixation needs to be removed for adjustment is avoided, more convenient logging operation is achieved, the logging precision and efficiency are greatly improved, and more comprehensive data support is provided for a user.