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实用新型
CN203239327U 一种分层注水井验封仪 失效 - 权利终止

一种分层注水井验封仪
摘要：
本实用新型公开了一种分层注水井验封仪，包括从上向下依次连接的压力测试装置(2)、泄压装置、密封装置(3)和定位装置(4)，泄压装置包括自解封滑杆(5)、端盖(54)和弹簧(56)，自解封滑杆(5)下端密封插接于定位装置(4)内，当自解封滑杆(5)向上移动脱离定位装置(4)时，定位装置(4)内的空间(41)能够与密封装置(3)的拉座(33)和密封滑杆(31)内的空腔(34)连通。通过设置泄压机构，实现上提仪器时自动泄掉验封仪密封胶套上下两侧的压差。达到提高测试效率、避免仪器落井事故发生的目的。从而有效地克服了施工的盲目性，大幅度提高了施工的时效性。
摘要（英）：

The utility model discloses a seal checking device of a separate injection well. The device comprises a pressure measuring device (2), a decompression device, a sealing device (3) and a positioning device (4) which are sequentially connected from top to bottom. The decompression device comprises a self-unlocking sliding rod (5), an end cap (54) and a spring (56). The lower end of the self-unlocking sliding rod (5) is inserted in the positioning device (4) in a sealed mode. When the self-unlocking sliding rod (5) moves upward and is separated from the positioning device (4), space in the positioning device (4) can be communicated with a pull base (33) of the sealing device (3) and a cavity (34) of a sealing sliding rod (31). By means of arrangement of a decompression mechanism, the fact that when a device is lifted, the pressure difference on the upper side and the lower side of a sealing rubber sleeve of the seal checking device is automatically decompressed. The aims of improving checking efficiency and avoiding device falling accidents are achieved. Therefore, blindness of construction is effectively overcome, and timeliness of construction is greatly improved.

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