Wax deposits in production and transportation lines is one of the most relevant problems for the industry. The heat exchange from the oil flowing through the lines with the colder outside environment may lead to wax deposition, causing partial or total blockage of the lines with severe economic consequences. The monitoring of the wax deposit growth in the interior of the lines would be a relevant piece of information for operational decisions regarding the frequency of wax removal. The techniques presently available for monitoring wax deposit growth display limited performance and offer high uncertainty levels. The present work conducted an experimental study with the objective of assessing the use of ultrasonic techniques for measuring wax deposit growth in pipelines. Four different techniques were proposed, namely, (i) a technique based on the reflection of the signal at the liquid-deposit interface, (ii) technique based on the combined propagation time of the ultrasound wave in the liquid and deposit phases, (iii) technique based on the amplitude attenuation of the ultrasonic echo after passing through the deposit, and (iv) a technique based on the delay of the ultrasonic echo after passing through the deposit. To this end, a test section was specially designed and constructed, allowing the controlled formation of wax the deposit from different wax solutions, which was monitored by a digital camera synchronized with the ultrasound data acquisitions. The results obtained indicated that, no reflection at the interface was detected, only the attenuation of the echo amplitudes and reduction in propagation time, precluding the use of the first technique. The remaining techniques presented satisfactory results when compared to the optically measured deposit thicknesses. The technique based on the attenuation of the echo amplitude presented to be potential tool to monitor wax deposit in petroleum lines.