Float type water control valve

Abstract

The invention provides a float type water control valve. The float type water control valve comprises a valve cover, a valve bottom and a connecting core tube. The valve cover is provided with a fluidinlet. The valve bottom is provided with a fluid outlet, and the valve cover is connected with the valve bottom. The connecting core tube is installed between the valve cover and the valve bottom, and a flow passage is enclosed between the outer wall surface of the connecting core tube and the inner wall surface of the valve bottom. The fluid inlet communicates with the fluid outlet through the connecting core tube and the flow passage, and the flow passage area of the fluid inlet is not less than the flow passage area of the connecting core tube. The flow passage contains a float internally,and the float blocks the flow passage or conducts the flow passage under the action of fluid pressure. The float type water control valve optimizes the fluid passage structure and the fluid flow pathby additionally arranging the connecting core tube, the float is matched with the flow passage to realize that the float can adaptively adjust the flow opening degree of the flow passage according tothe properties of the formation produced fluid, and a better water control and oil increase effect is achieved.

Description

technical field [0001] The invention relates to the field of water control tools, and more specifically, to a buoy type water control valve. Background technique [0002] Stabilizing oil and controlling water is the only way to control the cost of oil and gas production and improve the benefits of oilfield development. There are many ways to control water, and the most common way is to use water control tools to control water. In today's oil and gas industry, there are more and more horizontal wells and highly deviated wells, especially in the field of offshore oil, where the number of horizontal wells and highly deviated wells accounts for the majority. During the production process of horizontal wells, due to the different suction pressures on the various formations in the horizontal section, the heterogeneity of the primary and secondary formations, the difference in fluid mobility and other reasons, a dominant water flow channel is formed in the formation, resulting in w...

AI Technical Summary

Problems solved by technology

However, the water control tools used in the existing horizontal well oil production have many deficiencies in the actual use process. They can only delay the formation of water cones, but cannot completely eliminate their formation. Therefore, how to improve the water control and oil increase of the existing water control tools for oil production The effect becomes the focus of current research

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