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Electric drills

Stop fittings

Control stations

Sources of seismic vibrations

Face seals

Telemetry systems

Submersible electric motors

IMPULSE ELECTROMECHANICAL SOURCES OF SEISMIC VIBRATIONS

Block diagram for all electromechanical sources

Сharge of capacitive storages (3) of electric impulses generator (4) is realised due to an operator's signal from a power-supply source (1) with the help of a charging unit (2). Discharge of the storages is realised due to a signal coming from the seismic station. At that, a signal from a control unit (6) comes to thyristor commutators (5). A formed electric impulse is given to windings of a linear impulse electric motor (LIEM) (7). An impulse of mechanical force developed at that is used not in the form of a pressure impulce (a pressure load), which is transmited to ground with the help of a supporting organ. Shock-free vibration generation provides stability (reproducibility) of effect, synchronism at grouping sources, increases reliability and working resource of LIEM. Specific pressure under the bedplate do not exceeds (6-10)·105 Pа. It guarantees transfer of loads to ground in limits its elastic deformations, and as a consequence of this the source can work hundreds of impects on one stand without move.

Reactive mechanical impulse is received by the stator additionally loaded with inertial mass.

LIEMs are divided into the following 3 types depending on principle of operation:

• electrodynamic, when electrodynamic transformation takes place as a result of interaction of currents running through windings of rotor and stator;
• electroinductive, when force impulse is formed as a result of interaction of currents running through windings of rotor and stator;
• electromagnetic, when mechanical force is excited in them due to interaction of magnetic field of the inductor's winding having a ferromagnetic body placed on the rotor.

Recuperation of energy stored in the LIEM's winding back to the condenser store is provided in seismic sources produced by JSC Plant Potencial for decreasing power consumption and so for decreasing its weight that has particular importance for mobile devices. At that, primary energy of an accumulator or a synchronous generator is used only for additional charging of a store device up to operating volage. In addition to economy of elecric power, this decreases charging time of the store device and so gives capability for increasing repetition frequency of force effects.

Sources TerraM and Terradyn are designed for exploration of small and average depths of geological category.

Range of application:

• Research of upper lays of geological deposits during searching for oil, gas and other mineral resources;
• Engineering and construction surveys preceding building of Metro, power plants and other large objects;
• Ecological investigations carried out with the purpose of underground waters detection;
• Studing karst phenomena and landslides;
• Works connected with seismic risk zoning.

Seismic sources Terra are designed taking into consideration requirements presenting at conducting seismic exploration on small depths including: autonomy, small dimension, weight, mass and cost, minimal operating staff, capability to work in regions difficult of access. LIEMs of electromagnetic are used in the sources. This provides high effectiveness of energy transformation: 120 - 150 N/J. LIEMs has magnetic circuits with collector interleaving and ring-shaped windings decreasing leakage fluxes essentially. All this decreases dimentions of feeding accumulators of the condenser store and LIEM itself and provides considerable resource of the accumulators without additional charging, lightens transportation of the source on profile.

Structure decisions used in the seismic sources Terra and Terradyn are protected by patents of Ukraine for useful model No. 1748, 2537 as well as by patents of Russian Federation for useful model No. 32610, 37841.

Main. About the plant. Contact information.
Production: electric drills and component parts, oil production equipment, equipment for water production from wells, sources of seismic vibrations, relit face seals,
equipment for oil and gas pipe lines.
Services: development, producing, manufacturing spare parts, repair, testing.