An oil well casing pressure control device
A control device and technology for oil wells, which are applied in wellbore/well valve devices, wellbore/well components, earth-moving drilling, etc., can solve the problems of inability to automatically control casing pressure, low efficiency, and large manual workload, etc. Achieve the effect of reducing environmental pollution and potential safety hazards, solving large manual workload, and improving pump efficiency and system efficiency
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Embodiment 1
[0017] In order to overcome the problems of large manual workload and low efficiency in oil well casing pressure control in existing crude oil production, and the inability to realize automatic control of casing pressure, this embodiment provides a method such as figure 1 and figure 2 The shown oil well casing pressure control device includes a valve body 1, a pressure cap 2 is connected to the inside of the front end of the valve body 1, and a ball seat 3, a cut-off steel ball 4 and a steel ball push rod 5 are set inside the valve body 1, The ball seat 3 is connected with the pressure cap 2, the cut-off steel ball 4 is placed between the ball seat 3 and the steel ball push rod 5, and the inner side of the steel ball push rod 5 is set with a pressure regulating valve 7. A pressure regulating spring 6 is sleeved on the outside of the pressure valve 7, and the pressure regulating spring 6 is connected to the steel ball push rod 5. A tail cap 8 is connected to the outside of the...
Embodiment 2
[0021] This embodiment provides an oil well casing pressure control device, which includes a valve body 1, a pressure cap 2 is connected to the inside of the front end of the valve body 1, and a ball seat 3, a cut-off steel ball 4 and a steel ball are set inside the valve body 1. The push rod 5, the ball seat 3 is connected with the pressure cap 2, the cut-off steel ball 4 is placed between the ball seat 3 and the steel ball push rod 5, and the inside of the steel ball push rod 5 is set with a pressure regulating valve 7 , the outside of the pressure regulating valve 7 is sleeved with a pressure regulating spring 6, the pressure regulating spring 6 is connected with the steel ball push rod 5, and the outside of the tail of the valve body 1 is connected with a tail cap 8, and the tail cap 8 is a A pressure regulating interface 9 is connected to the side wall, and the pressure regulating interface 9 communicates with the pressure regulating chamber 15 of the valve body 1, and the...
Embodiment 3
[0024] This embodiment provides an oil well casing pressure control device, which includes a valve body 1, a pressure cap 2 is connected to the inside of the front end of the valve body 1, and a ball seat 3, a cut-off steel ball 4 and a steel ball are set inside the valve body 1. The push rod 5, the ball seat 3 is connected with the pressure cap 2, the cut-off steel ball 4 is placed between the ball seat 3 and the steel ball push rod 5, and the inside of the steel ball push rod 5 is set with a pressure regulating valve 7 , the outside of the pressure regulating valve 7 is sleeved with a pressure regulating spring 6, the pressure regulating spring 6 is connected with the steel ball push rod 5, and the outside of the tail of the valve body 1 is connected with a tail cap 8, and the tail cap 8 is a A pressure regulating interface 9 is connected to the side wall, and the pressure regulating interface 9 communicates with the pressure regulating chamber 15 of the valve body 1, and the...
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