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发明公开
CN105298445A 减缓油气井环空带压的方法及装置 无效 - 驳回

减缓油气井环空带压的方法及装置
摘要：
本发明提供了一种减缓油气井环空带压的方法及装置，该减缓油气井环空带压的方法包括如下步骤：a)提供一储气罐，将所述储气罐通过管线与油气井环空相连通；b)向所述储气罐内灌注预定体积的惰性气体。本发明的减缓油气井环空带压的方法及装置，可减缓油气井环空压力急剧上升或降低，降低生产管柱、套管、封隔器、井口设备密封失效泄露及破裂的可能性。
摘要（英）：

The invention provides a method and device for reducing oil and gas well annulus belt pressure. The method for reducing the oil and gas well annulus belt pressure comprises the following steps that a gas storage tank is provided, and the gas storage tank is communicated with an oil and gas annulus through a pipeline; a preset volume of inert gas is fed into the gas storage tank. By means of the method and device for reducing the oil and gas well annulus belt pressure, sharp increase or decrease of the oil and gas well annulus pressure can be reduced, and the possibility of seal failure leakage and breakage of a production pipe column, a sleeve pipe, a packer and wellhead equipment can be reduced.

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