Wellhead water-mixing combination valve of oil production well

Abstract

The invention relates to the technical field of oil well exploitation, and discloses a wellhead water-mixing combination valve of an oil production well. The wellhead water-mixing combination valve comprises a valve body, wherein the left end of the valve body fixedly communicates with an oil return tube; the left end of the valve body is fixedly equipped with a protective shell positioned on the outer side surface of the oil return tube; the left end of the protective shell is fixedly equipped with a light-touch type switch; and the left end of the light-touch type switch is equipped with a sealing sleeve. According to the wellhead water-mixing combination valve of the oil production well disclosed by the invention, gas inside an air bag is compressed as an outside temperature is relatively low to pull a movable block to move inside the sealing sleeve and pull a movable rod to move; when the movable rod is not in contact with the light-touch type switch, a switch of an electric heating wire is switched on to heat the oil return tube to prevent freezing; otherwise, gas inside the air bag with a relatively high temperature expands to push the movable block to move towards the left side and drive the movable rod to move; and when the movable rod is in contact with the light-touch type switch, the switch of the electric heating wire can be switched off to stop heating, so that the advantage of preventing freezing inside the oil return tube is realized.

Description

Technical field[0001]The present invention relates to the field of oil well mining, and is specifically a water-donor combination valve for oiling well.Background technique[0002]The oil distribution project is the general name of various engineering and technical measures adopted by the development target in the process of development targets in the process of development. As a comprehensive application discipline, it is studied to effectively act and effectively act in reservoirs to improve the theory, engineering design methods and implementation techniques of engineering and technical measures in oil well production and crude oil recovery. The oil production project is facing different types of reservoirs for different geological conditions and dynamic changing, only according to the geological conditions and dynamic changes, correct choices and implementation technology, and economically reasonable engineering program can Good economic effect. To do this, you must master the bas...

AI Technical Summary

Problems solved by technology

It can be used for various parameters of non-corrosive liquid, gas and steam media to control the parameters according to the priority action principle. In actual use, the combined control valve generally has a pipe installed at one end of the combined valve for oil return or water return operation. , but these pipes are generally directly exposed to the outdoors for use. When encountering severe cold, it is very easy to freeze inside the pipe because the external temperature is too low. In the prior art, the outer surface of the pipe is generally wrapped with insulation Cotton is used to realize the heat preservation of the pipe, which is extremely inconvenient to use, and the heat preservation effect is poor

[0004] The pipeline at one end of the combination valve is generally directly exposed to the air in the actual environment, and the external environment is more complicated. Although the pipeline itself adopts anti-corrosion and anti-aging design, it will still be damaged due to the harsh external environment in actual use. As a result, the life of the pipeline is greatly affected, and the combined valve needs to be replaced frequently, which leads to an increase in cost and affects the use

[0005] At the same time, the combination valve generally adopts a modular design, but the number of modules of the currently used combination valve is determined before leaving the factory, and it is not convenient to combine each module itself to combine other branch valves on the basis of the main valve body. , the disassembly between the branch valve and the valve body is difficult, and the number and position of each branch valve cannot be frequently adjusted to meet the needs

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