发明名称 |
Bore-hole-jet device for formation testing and a prestarting procedure for said device |
摘要 |
The invention relates to fluidics, in particular to jet devices for lifting various liquids, essentially for lifting petrol out of wells and for well examination. The inventive jet device comprises a packer and a flow column provided with a bearing assembly. Bypass openings are embodied in said bearing assembly and a jet pump is arranged inside the body thereof. A channel for running a medium mixture off the jet pump into an annular space connected to the bypass openings, a channel for supplying fluid pumped-out from the well to the jet pump and a channel for supplying ejecting medium to a nozzle of the jet pump are embodied inside the body. In addition, a pressure-sealing unit is arranged in the channel for supplying the pumped-out fluid in such a way that it is superposed with respect to the jet pump. A bypass channel is embodied in the pressure-sealing unit in such a way that it enables a logging cable to be passed through said channel and the channel for supplying the pumped-out liquid. The logging cable makes it possible to arrange instruments and equipment in the well below the jet pump in such a way that they can move along the borehole.
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申请公布号 |
US6962197(B2) |
申请公布日期 |
2005.11.08 |
申请号 |
US20030415171 |
申请日期 |
2003.04.24 |
申请人 |
KHOMYNETS ZINOVIY DMITRIEVICH |
发明人 |
KHOMYNETS ZINOVIY DMITRIEVICH |
分类号 |
F04F5/24;(IPC1-7):E21B43/16;E21B47/00 |
主分类号 |
F04F5/24 |
代理机构 |
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主权项 |
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地址 |
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