Oil Production Water Control Device

Abstract

The invention relates to the technical field of devices for oil extraction, in particular to a water controlling device for oil extraction. The water controlling device for oil extraction comprises a coupling, an upper sealing barrel, an outer barrel and a base tube. The outer side of the upper end of the base tube and the inner side of the lower portion of the coupling are fixedly mounted together. An upper connector is fixedly mounted on the outer side of the upper portion of the base tube. The inner side of the lower portion of the upper connector and the outer side of the upper portion of the upper sealing barrel are fixedly mounted together. A lower sealing barrel is fixedly mounted on the outer side of the upper portion of the base tube. A first annular groove is formed in the lower portion of the outer barrel. The water controlling device for oil extraction is reasonable and compact in structure and convenient to use, the coupling, the upper sealing barrel, the lower sealing barrel, the outer barrel, the base tube, an inner protective barrel, an inner filter screen, a supporting screen, an outer filter screen and an outer protective barrel are used in cooperation with one another, and then the purpose of filtering stratum oil is achieved; the water controlling device for oil extraction has the advantages of being good in oil filtering effect, easy to disassemble, good in sealing effect and convenient to operate, improving production efficiency, and lowering production cost.

Description

technical field [0001] The invention relates to the technical field of oil production engineering devices, and relates to an oil production water control device. Background technique [0002] During the excavation and construction of vertical wells or special wells, it is often necessary to isolate and control water in each section of the oil well according to the formation production pressure difference to prevent bottom water coning. This construction technology needs to be used in the wellbore to prevent bottom water coning during oil production construction operations. However, the conventional oil production and water control device relies on welding to fix the upper joint, lower sealing cylinder and other components with the base pipe. The welding structure is easy to deform the structure of these key components and cause sealing failure. At the same time, the welded parts become a one-time oil extraction device, and the structural size cannot be changed, which leads ...

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Problems solved by technology

[0003] The present invention provides an oil production and water control device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of conventional oil production and water control devices with an integrated structure. Key components are easily deformed, resulting in sealing failure, high cost and poor oil filtering effect

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