FACILITY FOR WAVE TREATMENT OF PAYOUT BED Russian patent published in 2009 - IPC E21B43/16 

FIELD: oil and gas production.

SUBSTANCE: invention refers to oil and gas industry, particularly to facilities for generation wave fields of high intensity in bed. The essence of the invention is as follows: the facility consists of a case with covers and of a nozzle assembled on the input of the facility. A pair of identical resonance chambers adjoins the plane of output section of the nozzle; the chambers are arranged symmetrically relative to lengthwise axis of the facility, communicate between them and are divided with a wedge-shaped splitter in a lower part downstream working agent. Side surfaces of the sparger with internal walls of the case create flow output channels. The facility contains a replaceable bush secured on internal surface of one of the covers of the facility case. Also the pair of identical resonance chambers is formed with a bottom of the replaceable bush, with internal surfaces of its side walls and internal surface of another cover of the facility case. Front edges of side walls of the replaceable bush adjoin the plane of the output section of the nozzle. Back edges of side walls of the replaceable bush coincide with edges of internal walls of the facility case, while distance from the plane of a cut of the output section of the nozzle to the wedge-shaped splitter is determined by the analytic expression.

EFFECT: increased stability of chosen frequency of pressure fluctuations with changed conditions in bed; simplification of control over pressure fluctuation frequency in flow of working agent.

2 cl, 4 dwg