RU2007100594A - WELL JET UNIT FOR DEVELOPMENT AND TESTING WELLS WITH LOW FLOW PRESSURES - Google Patents
WELL JET UNIT FOR DEVELOPMENT AND TESTING WELLS WITH LOW FLOW PRESSURES Download PDFInfo
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- RU2007100594A RU2007100594A RU2007100594/06A RU2007100594A RU2007100594A RU 2007100594 A RU2007100594 A RU 2007100594A RU 2007100594/06 A RU2007100594/06 A RU 2007100594/06A RU 2007100594 A RU2007100594 A RU 2007100594A RU 2007100594 A RU2007100594 A RU 2007100594A
- Authority
- RU
- Russia
- Prior art keywords
- channel
- pumped medium
- packer
- supplying
- annulus
- Prior art date
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- Geophysics And Detection Of Objects (AREA)
Abstract
1. Скважинная струйная установка для освоения и испытания скважин с низкими пластовыми давлениями, содержащая установленные на колонне труб пакер и в затрубном пространстве скважины над пакером струйный насос, в корпусе которого размещены, по меньшей мере, одно активное сопло с камерой смешения и диффузором, выход которого сообщен с затрубным пространством скважины над пакером, выполнены канал подвода откачиваемой среды, проходной канал с седлом и перепускной канал, сообщающий канал подвода откачиваемой среды со входом в камеру смешения, а в седле проходного канала установлен герметизирующий узел, снабженный упорными и упругими элементами, с выполненным в нем осевым каналом под каротажный кабель с комплексным геофизическим прибором, расположенным со стороны канала подвода откачиваемой среды, отличающаяся тем, что в корпусе струйного насоса выполнен разгрузочный канал, сообщающий затрубное пространство скважины над пакером и канал подвода откачиваемой среды, в перепускном канале установлен обратный клапан, а в разгрузочном канале - цилиндрический клапан, перекрывающий его в исходном положении и имеющий связанную с перепускным каналом надклапанную полость с размещенной в ней пружиной.2. Установка по п.1, отличающаяся тем, что на выходе диффузора размещена вставная заглушка.1. A downhole jet installation for developing and testing wells with low reservoir pressures, comprising a jet pump installed on a pipe string and in a well annulus above the packer, in the housing of which at least one active nozzle with a mixing chamber and a diffuser is placed, output which is in communication with the annulus of the well above the packer, a channel for supplying a pumped medium, a passage channel with a saddle and a bypass channel communicating a channel for supplying a pumped medium with an entrance to the mixing chamber are made and a sealing unit is installed in the saddle of the passage channel, equipped with resistant and elastic elements, with an axial channel made therein under the logging cable with a complex geophysical device located on the side of the supply channel of the pumped medium, characterized in that a discharge channel is made in the body of the jet pump, communicating the annulus of the well above the packer and the channel for supplying the pumped medium, a check valve is installed in the bypass channel, and a cylindrical valve is installed in the discharge channel it in the initial position and having a valvular cavity connected to the bypass channel with a spring placed in it. 2. Installation according to claim 1, characterized in that at the outlet of the diffuser there is a plug-in plug.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007100594/06A RU2340797C2 (en) | 2007-01-09 | 2007-01-09 | Well jet facility for exploration and testing of wells with low pressures of horizon |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2007100594/06A RU2340797C2 (en) | 2007-01-09 | 2007-01-09 | Well jet facility for exploration and testing of wells with low pressures of horizon |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2007100594A true RU2007100594A (en) | 2008-07-20 |
RU2340797C2 RU2340797C2 (en) | 2008-12-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007100594/06A RU2340797C2 (en) | 2007-01-09 | 2007-01-09 | Well jet facility for exploration and testing of wells with low pressures of horizon |
Country Status (1)
Country | Link |
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RU (1) | RU2340797C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8567435B2 (en) | 2006-08-24 | 2013-10-29 | Global Valve Technology Limited | Centreline flow valve |
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2007
- 2007-01-09 RU RU2007100594/06A patent/RU2340797C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2340797C2 (en) | 2008-12-10 |
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Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20210110 |