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发明授权
CN109026631B 采油装置以及工作方法 有权

采油装置以及工作方法
摘要：
本申请实施例公开了采油装置以及工作方法，采油装置包括内泵筒、外泵筒、封隔机构、柱塞、第一控制机构、第二控制机构以及第三控制机构、油管、洗井控制机构，所述外泵筒和所述内泵筒之间形成有沉砂通道，所述外泵筒和所述内泵筒形成有进液通道和洗液通道，所述洗井控制机构设置在所述洗液通道处，所述第三控制机构设置在所述柱塞内，所述第一控制机构位于所述洗液通道和所述进液通道之间；所述第二控制机构位于所述洗液通道和所述第三控制机构之间，所述柱塞的上端分别与所述油管和所述沉砂通道连通，所述柱塞的下端与所述内泵筒连通。
摘要（英）：

The embodiment of the invention discloses an oil extraction device and a work method. The oil extraction device comprises an inner pump cylinder, an outer pump cylinder, a packer mechanism, a plunger,a first control mechanism, a second control mechanism, a third control mechanism, an oil pipe and a well washing control mechanism; a sand setting channel is formed between the outer pump cylinder and the inner pump cylinder, a liquid inlet channel and a liquid washing channel are formed by the outer pump cylinder and the inner pump cylinder, the well washing control mechanism is arranged on theliquid washing channel, the third control mechanism is arranged in the plunger, the first control mechanism is arranged between the liquid washing channel and the liquid inlet channel, the second control mechanism is located between the liquid washing channel and the third control mechanism, the upper end of the plunger communicates with the oil pipe and the sand setting channel, and the lower endof the plunger communicates with the inner pump cylinder.

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