Wellhead discharge device and exhaust method of sagd production well
A technology for discharge devices and production wells, which is applied to wellbore/well valve devices, wellbore/well parts, earthwork drilling and production, etc., which can solve the problems of operators being easily poisoned and polluting the environment, so as to solve the problems of easy poisoning, prevent Effects of polluting the environment and preventing poisoning accidents
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[0026] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0027] The present application provides a wellhead drainage device for a SAGD production well, wherein the SAGD production well includes a casing and a drainage pipe arranged in the casing. Such as image 3 As shown, the wellhead drainage device in this embodiment includes a first pipeline 10 , a second pipeline 20 and a first throttling device 30 . Wherein, the first pipeline 10 communicates with the drain pipe, the first end of the second pipeline 20 communicates with the casing, and the second end of the second pipeline 20 is connected to the first pipeline 10 . The first throttling device 30 includes a one-way valve 31 and a first valve 32, wherein the conduction direction of the one-way ...
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