FACILITY FOR EXCITATION OF ELASTIC WAVES IN WELLS Russian patent published in 2009 - IPC G01V1/52 

FIELD: mining; oil and gas industry.

SUBSTANCE: invention refers to facilities for excitation of elastic waves in wells and is designed for cross-well seismic survey of rock at oil and gas deposits and also for cleaning filters of oil and water intake wells from mud. The facility consists of a current pulse generator, of a coaxial cable, of an electric-mechanical converter in form of an inductance coil assembled on a cylinder frame fabricated out of electric insulating material and of a metallic hammer. Also the inductance coil has a cylinder shape and is wound on the frame coaxially to the hammer, while the metallic hammer is made in form of a tube coaxially arranged outside the inductance coil and divided along a moving line into several sections connected between them with elastic elements.

EFFECT: upgraded mechanical strength and reliability of the facility, also increased amplitude and power of seismic pulse.

3 dwg