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实用新型
CN203906408U 射流泵组件及具有其的试油测试用井下管柱组件 失效 - 权利终止

射流泵组件及具有其的试油测试用井下管柱组件
摘要：
本实用新型公开了一种射流泵组件及具有其的试油测试用井下管柱组件，所述射流泵组件包括：泵筒(100)以及用于选择性地插入到所述泵筒内的泵芯(200)和隔离套(300)，所述泵筒形成有第一端口(100a)、第二端口(100b)和排液孔(100c)。在所述泵芯插入到所述泵筒内的状态下，所述泵芯的扩散管(6)与所述排液孔和第二端口连通，且第一端口与第二端口的连通被阻断；在所述隔离套插入到所述泵筒内的状态下，所述排液孔与所述第一端口和所述第二端口的连通均被阻断。由于隔离套的内腔尺寸可以设置为小于环空尺寸，从而使吸入液的排出更容易；在排出过程中，吸入液无需经过射流泵外，因而使求产更精确。
摘要（英）：

The utility model discloses a jet pump assembly and an oil-test downhole tubular column assembly with the same. The jet pump assembly comprises a pump cylinder (100) and a pump core (200) and an isolating sleeve (300) which are used for being inserted into the pump cylinder selectively; the pump cylinder is provided with a first port (100a), a second port (100b) and a liquid drainage hole (100c); when the pump core is inserted into the pump cylinder, a diffuser (6) of the pump core is communicated with the liquid drainage hole and the second port, and the first port is isolated to the second port; when the isolating sleeve is inserted into the pump cylinder, the liquid drainage hole is isolated to the first port and the second port. Since the inner cavity of the isolating sleeve can be smaller than the annulus size as set, the sucked liquid can be drained more easily; during the drainage, the sucked liquid can be free of passing the jet pump, and the out flowing is more accurate accordingly.

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