AICD water control device

Abstract

The invention provides an AICD water control device. The AICD water control device comprises a disc provided with an inner cavity, a plurality of swirling cavities formed in the inner cavity and inlets corresponding to the multiple swirling cavities. A first outlet communicating with the inner cavity is formed in the bottom wall of the disc; the multiple swirling cavities do not interfere with thefirst outlet, and second outlets are formed in the bottom walls of the swirling cavities; the inlets are formed in the edge of the disc, openings of the inlets point in the same direction as the peripheral direction of the disc; and each of the inlets includes a main channel and branches branched from the main channel, the main channels are tangent to the edge of the disc and communicate with theinner cavity, and the branch channels are in communication with the corresponding swirling cavities. The AICD water control device can fully rotate fluid, generates a large pressure drop difference and promotes separation of oil and water, and the oil increase and water control effect is better.

Description

technical field [0001] The invention relates to the technical field of water control, in particular to an AICD water control device. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] Wells with complex structures such as horizontal wells and extended-reach wells have many advantages that vertical wells cannot match, so they have become the best choice for thin-bed reservoirs, bottom water reservoirs, fractured reservoirs, heavy oil reservoirs, marine diving and deep-water reservoirs. main means of extraction. Compared with vertical wells, horizontal wells have many advantages: First, the longer wellbore of horizontal wells increases the contact area between the wellbore and the oil and gas layer, which greatly increases the oil drainage area of ​​the reservoir; Also smoother, with less resistance to flow. [0004] However, when horizontal wells are i...

AI Technical Summary

Problems solved by technology

[0012] In summary, the existing AICD water control device has the problems of poor oil-water separation effect and small pressure drop of liquid flowing through the device, resulting in poor oil increase and water control effect.

[0013] In fact, in the existing AICD water control device, since there is only a simple swirl chamber in the device, no matter what kind of fluid flows through the AICD water control device of the embodiment of the present invention, it cannot obtain sufficient rotational movement

In this way, when different fluids such as oil and water flow through the AICD device, the pressure drop difference is small, and the ideal effect cannot be achieved.

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