Gas collecting control device for solar casing gas

Abstract

The invention relates to a solar casing gas collection control device, which consists of a solar panel, a control box, a control circuit board, a storage battery, a Christmas tree, a gas collection manifold, a solenoid valve, a temperature sensor, a pressure sensor, an electric heating wire, a heat insulation Composed of insulation layer, electric power and signal cables, the invention has a novel structure, solves the problem of casing gas collection and discharge that has plagued the production of heavy oil and high pour point oil for many years, and overcomes the safety hazard and environmental pollution of artificially discharging natural gas into the atmosphere Disadvantages, saving precious natural gas resources, increasing the output of natural gas in oil production, and improving the economic benefits of oil production.

Description

Technical field: [0001] The invention relates to the field of oil recovery production technology, in particular to a solar casing gas collection and energy saving control device. Background technique: [0002] In the process of oil production, oil production wells are also accompanied by a lot of natural gas. This part of the casing gas is stored in the casing and is called casing gas. Generally, the gas collection manifold is used to import it into the liquid production manifold, and it is transported through pipelines. To collect and recycle in the large tank of the joint station in the distance, the ball valve with the spring to control the pressure is commonly used on site. This kind of valve has many disadvantages. First, the spring machine is very easy to fatigue and break, not only loses the constant pressure function of the spring, but also loses the sealing effect between the steel ball and the ball seat when the spring is broken, which leads to the loss of control ...

AI Technical Summary

Problems solved by technology

[0002] In the process of oil production, oil production wells are also accompanied by a lot of natural gas. This part of the casing gas is stored in the casing and is called casing gas. Generally, the gas collection manifold is used to import it into the liquid production manifold, and it is transported through pipelines. To collect and recycle in the large tank of the joint station in the distance, the ball valve with the spring to control the pressure is commonly used on site. This kind of valve has many disadvantages. First, the spring machine is very easy to fatigue and break, not only loses the constant pressure function of the spring, but also loses the sealing effect between the steel ball and the ball seat when the spring is broken, which leads to the loss of control of the casing gas and the occurrence of crude oil backflow accidents; Unstable flow will occur behind the ball, and the excessive air volume will cause the steel ball and ball seat to be easily worn and out of round, which will affect the sealing effect of the constant pressure valve; especially for heavy oil and high pouring oil, the temperature will be solidified at about 30 degrees, In the process of casing gas storage, if the oil in the gas gathering manifold solidifies, the exhaust to the system manifold will fail, the pressure of the casing gas will increase, the dynamic liquid level of the oil well will decrease, and even the casing gas will be drawn in from the pump to form an air lock , affecting oil production

For production in winter, due to the low ambient temperature, the oil in the gas-collecting manifold often freezes due to the low temperature of the gas-gathering manifold. Because the gas in the casing cannot be exhausted, the dynamic liquid level of the production fluid decreases and even the gas locks, which seriously affects the oil production. At present, most oil production workers adopt The casing gas collected by the pipes is regularly artificially discharged into the atmosphere to cause environmental pollution, which not only poses a safety hazard in case of open fire combustion, but also causes waste of precious natural gas resources

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