The acoustic emitter is being descended inside the well under persistant controll of the operators. By reaching a certain depth the operator sets all the necessary parameters of the treatment, including acoustic impact power, frequencies of ultrasonic vibrations, treatment time and etc (depending on the geophysical parameters of the well)

The method of acoustic impact creates a powerful acoustic field in the well, at the depth of the reservoir, to increase the permeability of the near-wellbore zone of the reservoir, by cleaning perforations and reservoir pores from mechanical impurities, gas hydrate and asphaltene deposits

The operators controls the treatment process permanently cash register the treatment is fully done. Thus ensures the transparency and accessibility of the well and its perforation holes

Ultrasonic methods make it possible to achieve increased oil recovery, provide a solution to the problem of increasing the uniformity of reservoir development, additional oil recovery from wells with reduced filtration properties, including old and exhausted wells, as well as in the production of heavy and high-viscosity oils. The ultrasonic treatment effect is able to last for up to 7-12 months before the inpurities start to form again

Main control center which sets, controls and registers all parameters of ultrasonic treatment on the bottomhole zone of the oil or gas condensate wells and consists of the following parts:

Shows geological & geophisycal parameters of well treatment  in real time

Generator of high sound and ultrasonic frequincies (Generates electric signal for acoustic emitter)

Coordinates and matches the work of generator and acoustic emitter

Stabilizes the signal for emitters of magnitostrective type

Registers all logs and performs real time data monitoring (pressure, tempretaure, humidity and etc)

Has a special software to control the whole technological process

High-tech devices, which convert the energy of the electric signal into powerful acoustic vibrations. Main emitter types are magneto-strictive and piezoceramic, which differs by its construction and by the method of converting the electric signal into acoustic. Emitters have various diameters to fit standard tubing of world oil and gas companies (42-120mm)

Specially developed software provides the transfer of geophysical parameters between the operator of the Mobile Acoustic Complex. The hardware components of automated systems, including: analysis of the parameters of surface and downhole equipment in real time; archiving, processing and printing of the results of acoustic impact on each well; control of possible emergency events; generation of reports, etc.

A connecting cable is required to transmit an electrical signal from a ground-based Generator to an acoustic radiating system (emitter), located in a well at a depth of up to 5 km. From the point of view of electromagnetic and acoustic properties, a connecting cable is a complex system with distributed parameters, the main of which are the wave properties of the cable.

For experimental purposes, the existing geophysical logging cable was used to test the acoustic complex. However, when transmitting a signal from the generator to the speaker system, there is a significant loss of power. The main reason is cable losses (ohmic, dielectric, ferromagnetic, etc.), which lead to linear power attenuation in proportion to the cable length.

Therefore, the project team developed a fundamentally new armored acoustic cable with modified characteristics to maintain the maximum power of the acoustic system when transmitting a signal from the generator to the acoustic emitter located in the well.

AWT technology is based on the physical principle of ultrasonic cavitation

The effect of cavitation consists in the very rapid collapse of bubbles in a liquid, because of which a hydraulic impact occurs at the place of collapse, the shock wave from which propagates in the surrounding liquid

Under the influence of ultrasound, high-frequency mechanical vibrations occur in the well fluid, which lead to a high-speed rupture of the fluid and the formation of cavitation bubbles. Due to the high frequency of oscillations, the instantaneous velocity and acceleration of fluid particles can reach very high values, sufficient for its high-speed rupture

Accordingly, the cavitation effect that occurs during acoustic vibration makes it possible to destroy impurities in the perforations and the pores of the oil reservoir