Method for operating a well jet device during ultrasonic cleaning of the downhole area of a productive formation and device for carrying out said method

Abstract

The present invention relates to pumps, and more particularly to well pump devices for extracting oil from downholes. The method includes assembling a feed cone with a bolt, a packer, and a jet pump from the bottom up and lowering the assembly into the well through a tubing string. A physics receiver-transducer is also lowered into the well to measure temperature and other physics fundamentals, and the pay zone is drained and the effects of the various interzones in the pay zone are evaluated. Ultrasonic action is performed on the oil-producing layer. During the ultrasonic treatment of the oil-producing layer, the hydraulic action is applied to the oil-producing layer, so that the entire oil-producing layer is subjected to the joint action of ultrasonic vibration and hydraulic action. Thereafter, the ultrasonic device is taken out to the ground. Perform hydraulic and geophysical analysis of the well using the jet pump and replaceable inserts; the assembly and jet pump are then retrieved to the surface for processing necessary for well development. The present invention also relates to optimizing the dimensions between the components of the device to improve the reliability and performance of the well jet device during treatment of a pay zone.

Description

technical field [0001] The invention relates to the field of pump engineering, in particular to a well pump device for extracting oil from underground. Background technique [0002] A method known in the art for operating a well fluidic device includes supplying a nozzle of a fluidic device through a string of tubing with an active liquid medium that entrains and mixes produced fluid from the well and delivers the mixed fluid in the well to the surface ( RU 2059891 C1). [0003] The same document also discloses a well jet device, which includes a jet pump assembled on the downhole tubing string, and a logging instrument arranged below the jet pump on the tubing string. [0004] Known methods of operation and well jet devices allow various production fluids, such as oil, to be pumped out of the well while simultaneously treating the production fluids and the pay zone near the wellbore region. [0005] However, said method does not provide the possibility to select operation...

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Problems solved by technology

[0009] However, the method of operation and the well jet device do not take full advantage of the capabilities of the well jet device due to the limited methods of operation for treating pay zones, primarily the use of chemically active liquid media, and the impossibility of precisely acting on areas that are not producing at all. Pay zones with little or no oil, in addition to a suboptimal relationship between the dimensions of the well jet components