ELECTROMECHANICAL BAILER FOR WELL SEPARATING BRIDGE INSTALLATION (VERSIONS) Russian patent published in 2010 - IPC E21B27/02 

FIELD: oil-and-gas industry.

SUBSTANCE: invention related to oil-and-gas industry, particularly to wells constraction and repair works, and can be used for separation bridges installation, of producing horizons and a borehole sections isolation from each other. Operation with separating bridges arrangement in wells of low possibility, at that absence of explosive materials improves bailer operation safety conditions. Used electromechanical cement slurry chamber opening device, and a metal load, statically fixed at the bailer top part, which possessed an optimal potential energy, which is needed for cement slurry forcing away from the bailer chamber, so, and a valve device with a moderator, actuating during cement slurry forcing away period, also a response sensor, installed inside the bailer, allowing to register the bailer full actuation moment at daylight, during cement slurry forcing away from the chamber with the metal load.

EFFECT: device operation reliability and efficiency increase.

2 cl, 14 dwg