Abstract: An integrated wellhead device for filtering injected and produced gases is provided. The wellhead device comprises a horizontal tank body that is internally provided with an injected gas filtering system and a produced gas filtering system. The injected gas filtering system is internally provided with an oxygen removal chamber. A gas inlet of the injected gas filtering system is connected with an injected high-pressure gas source, and a gas outlet of the injected gas filtering system is connected with a gas injection well casing of Christmas tree. The produced gas filtering system is internally equipped with an oxygen removal chamber, a sulfur removal chamber and a carbon dioxide removal chamber. A gas inlet of the produced gas filtering system is connected with a gas production tubing of the Christmas tree, and a gas outlet of the produced gas filtering system is connected with a produced gas transmission pipe.

Abstract: An integrated wellhead device for filtering injected and produced gases is provided by the present disclosure, comprising a horizontal tank body that is internally provided with an injected gas filtering system and a produced gas filtering system, wherein the injected gas filtering system is internally provided with an oxygen removal chamber, the gas inlet of the injected gas filtering system is connected with an injected high-pressure gas source, and the gas outlet of the injected gas filtering system is connected with a gas injection well casing of Christmas tree, the produced gas filtering system is internally equipped with an oxygen removal chamber, a sulfur removal chamber and a carbon dioxide removal chamber, the gas inlet of the produced gas filtering system is connected with a gas production tubing of the Christmas tree, and the gas outlet of the produced gas filtering system is connected with a produced gas transmission pipe.