MOBILE ELECTROHYDRODYNAMIC DRILLING RIG Russian patent published in 2020 - IPC E21B7/15 E21C37/18 

FIELD: drilling of wells.

SUBSTANCE: present invention relates to installations intended for drilling wells in geological research, survey works, drilling wells for water, in making foundations during construction of objects, prospecting gold. Mobile electrohydrodynamic unit comprises an electric drill connected by an electric cable to a voltage source connected in turn to a source of electrical energy on the surface, system of high-voltage electrodes for creation of electrohydraulic effect, pump station, vacuum station for lifting to surface of pulp destroyed by electric drilling rock with metal particles, for example, gold and comprises, at the outlet, a multispiral concentrator for separating metal from rock, a storage battery, a pulse signal generator and a voltage converter. Electric drill is located in the well, it is made in the form of a metal open from below cylinder and is suspended on a cable of the tripod unit. High-voltage power supply unit at higher frequency, which is installed in the electric drill body, contains a transformer subunit, a rectifier subunit, a sub-unit of the capacitor and a subunit of additional forming gaps. System of high-voltage electrodes forming main spark gap of electric drill is made of one central electrode from refractory, for example, tungsten, material connected to positive terminal of high voltage source and placed in lower part of electric drill body, and several sharpening electrodes along open internal lower part of cylindrical surface of electric drill body, connected to negative terminal of high voltage source.

EFFECT: enabling determination of location and direction of metal vein movement on the ground and possibility of developing the deposit in the most efficient manner.

4 cl, 6 dwg