Mechanical control wheel production device for oil field

Abstract

The invention provides a mechanical control wheel production device for an oil field. The mechanical control wheel production device comprises a main body and a core body, a main channel and a side channel are arranged in the main body; in the height direction, the upper outlet, the upper oil extraction opening, the lower inlet and the lower oil extraction opening are sequentially arranged at intervals. The core body is arranged in the main channel and below the upper outlet in a manner of sliding up and down; the core body comprises an upper plugging part, a middle conduction part and a lower plugging part; the lower inlet is formed in the stroke range of the middle communication part, the outer diameter of the middle communication part is smaller than the hole diameter of the main channel, and the middle communication part is used for guiding oil liquid flowing in from the upper oil extraction opening or the lower oil extraction opening into the side channel; and the oil liquid entering the side channel flows back to the main channel from the upper outlet and flows to the ground through the main channel. The device is simple in structure, convenient to use, safe and reliable and capable of rapidly achieving replacement and production between two oil layers.

Description

technical field [0001] The invention relates to the technical field of oil recovery in oil fields, in particular to an oil field mechanically controlled rotation recovery device. Background technique [0002] The significance of oil well production rotation is to separately understand the production capacity of the separated layers through layer-by-layer production seeking. It is of great significance to determine a reasonable production method and improve the final production capacity of the oil well. [0003] At present, there are the following three types of stratified production switch: the mechanical rotation switch controlled by the sucker rod; the hydraulic rotation switch controlled by the pressure of the ground pump truck and the electric control rotation switch controlled by the cable or electric signal. The first two wheel switches generally adopt the design structure of reversing track tube and spring force reset, and realize layer change through long and short g...

AI Technical Summary

Problems solved by technology

The first two wheel switches generally adopt the design structure of reversing track tube and spring force reset, and realize layer change through long and short grooves. Due to the influence of closed formation pressure, it is easy to mess up layers and have poor reliability; Good, but there are problems of complex construction and high input costs

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