Efficient elastic filter screen vibration separation device and application method

Abstract

The invention discloses an efficient elastic filter screen vibration separation device and an application method, and relates to a sand prevention technology for an oil well pump. The efficient elastic filter screen vibration separation device and the application method solve the problems in the prior art. The efficient elastic filter screen vibration separation device is structurally characterized in that an upper joint and a lower joint are arranged at the two ends of an outer pipe separately, an inner pipe is located in the middle of the outer pipe, the lower end of the inner pipe is connected to a conical vibrating spring, the outer edge of the inner pipe is sleeved with a conical sand-proof filter screen, the lower end of a centralizing vibrating spring is connected to the inner pipe,the upper end of the centralizing vibrating spring is connected to a corrugated pipe, the upper end of the corrugated pipe is connected to the upper joint, the conical sand-proof filter screen is conical, the conical caliber of the upper part is large, the conical caliber of the lower part is small, the taper is 10 degrees, the bore diameter of the conical sand-proof filter screen is 180 meshes,the top end of the conical sand-proof filter screen is connected to the upper end of the inner pipe, a gap between the outer wall of the top end of the conical sand-proof filter screen and the inner wall of the outer pipe is 5 mm, and the bottom end of the conical sand-proof filter screen is connected to the lower end of the inner pipe.

Description

technical field [0001] The invention relates to the sand control technology of an oil well pump, in particular to a high-efficiency elastic filter screen vibration separation device and an application method. Background technique [0002] At present, in the sand control separator used on oil wells, the sand control filter screen is covered on the sand control inner tube. Although there is a certain gap between the sand control filter screen and the sand control inner tube, the sand control filter screen is easily absorbed by the pump for a certain period of time. On the sand control inner pipe, the filter area of ​​the sand control filter is reduced, and the suction force of the sand control filter is increased. The filter with a reduced area of ​​the oil inlet channel is easily damaged by the suction of the oil well pump, and the filter of the filter is easy to lose As a result, the fine silt enters the pump barrel through the damaged filter screen, causing the pump to stop...

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Problems solved by technology

[0002] At present, in the sand control separator used on oil wells, the sand control filter screen is covered on the sand control inner tube. Although there is a certain gap between the sand control filter screen and the sand control inner tube, the sand control filter screen is easily absorbed by the pump for a certain period of time. On the sand control inner pipe, the filter area of ​​the sand control filter is reduced, and the suction force of the sand control filter is increased. The filter with a reduced area of ​​the oil inlet channel is easily damaged by the suction of the oil well pump, and the filter of the filter is easy to lose As a result, the fine silt enters the pump barrel through the damaged filter screen, causing the pump to stop production and shorten the separation effect of the separator; at the same time, because the liquid inlet channel is not separated from the sand settling channel, the separated part The sand particles are mixed with the incoming liquid to produce secondary filtration and reduce the filtering effect of the filter.

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