SU570698A1 - Device for sealing oil well - Google Patents
Device for sealing oil wellInfo
- Publication number
- SU570698A1 SU570698A1 SU7502137394A SU2137394A SU570698A1 SU 570698 A1 SU570698 A1 SU 570698A1 SU 7502137394 A SU7502137394 A SU 7502137394A SU 2137394 A SU2137394 A SU 2137394A SU 570698 A1 SU570698 A1 SU 570698A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oil well
- sealing oil
- cylinder
- chamber
- packer
- Prior art date
Links
Description
Во врем спуска в скважину обводна трубка удар етс о стенки скважины, тер ет герметичиость , сминаетс и тем самым ириводит к отказу устройства. При эксилуатации скважииы электронасосом регулирование работы устройства путем вращени и осевого перемещени труб может привести к иарушепию кабел электронасоса.During the descent into the well, the bypass tube hits the walls of the well, loses hermeticity, crushes and thus leads to device failure. When the pump is operated by an electric pump, regulating the operation of the device by rotating and axially moving the pipes can lead to violation of the electric pump cable.
Целью изобретени вл етс повыгиение надежности управлени работы устройства.The aim of the invention is to increase the reliability of the control operation of the device.
Указанна цель достигаетс тем, что устройство снабжено крыщкой и днищем с каналом, которые образуют с колонной подъемных труб камеру, сообщающуюс с надпорщневой полостью цилиндра.This goal is achieved in that the device is provided with a lid and a bottom with a channel, which form a chamber connected to the peristal cavity of the cylinder with the riser column.
На чертеже изображено з стройство в положении , когда скважина перекрыта.The drawing shows the device in a position where the well is blocked.
Устройство включает пакер 1 с подпружиненным обратным клапаном 2. На пакере установлен цилиндр 3 с поршнем 4, патрубком 5 и щтоком 6. Полость цилиндра под норщнем через отверсти в натрубке 5 сообщена с надпакерным пространством. С цилиндром телесконичееки св зана е помощью гильзы 7 каме )а, образованна колонной подъемных труб 8, крыщкой 9 и днии;ем 10 с каналом. В днище 10 выполнен канал дл ввода штуцера И.The device includes a packer 1 with a spring-loaded non-return valve 2. On the packer there is a cylinder 3 with a piston 4, a branch pipe 5 and a brush 6. The cavity of the cylinder under the pipe is communicated with nadpaknerny space through holes in the pipe 5. With the cylinder of the telesconic cylinder, it is connected with the help of the liner 7 of Kama), formed by the column of lifting pipes 8, the lid 9 and the tubing; I eat 10 with a channel. In the bottom 10 there is a channel for introducing choke I.
Устройство работает следуюн им образом.The device works in the following way.
При спуске цилиндра 3 с камерой они разведеиы друг от друга и штуцер 11 не введен в канал днища 10. Скважинна жидкость через канал поступает в камеру, сжима иаход щийс в ней воздух до давлени , равного гидростатическому давлению на глубине снуска . При посадке цилиндра 3 на пакер 1 штуцер И уплотн етс в днище 10, а обратныйWhen the cylinder 3 with the chamber is lowered, they are separated from each other and the fitting 11 is not introduced into the channel of the bottom 10. The borehole fluid enters the chamber through the channel, compressing and the air in it to a pressure equal to the hydrostatic pressure at the depth of removal. When cylinder 3 is seated on packer 1, fitting AND is sealed at the bottom 10, and the reverse
кланан 2 остаетс закрытым. При пуске в работу насоса или фонтанного лифта давление жидкости вне камеры уменьшаетс . Под давлением сжатого воздуха порщень 4 со щтокомclan 2 remains closed. When the pump or the gantry lift starts up, the pressure of the fluid outside the chamber decreases. Compressed air pressure Porsch 4 with a brush
6 неремещаетс вниз и открывает обратный клапан 2 пакера. В случае прекращени откачки или нарущени герметичности колонны труб уровень жидкости в скважине повыщаетс и давление за камерой становитс большим , чем в камере. Под действием перепада давлени поршень со штоком перемещаетс вверх, закрыва обратный кланап пакера.6 does not slide down and opens the packer check valve 2. In the event that pumping is stopped or the tubing string is damaged, the fluid level in the well increases and the pressure behind the chamber becomes greater than in the chamber. Under the action of the differential pressure, the piston with the rod moves upwards, closing the return clan-pack of the packer.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502137394A SU570698A1 (en) | 1975-05-04 | 1975-05-04 | Device for sealing oil well |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502137394A SU570698A1 (en) | 1975-05-04 | 1975-05-04 | Device for sealing oil well |
Publications (1)
Publication Number | Publication Date |
---|---|
SU570698A1 true SU570698A1 (en) | 1977-08-30 |
Family
ID=20620455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7502137394A SU570698A1 (en) | 1975-05-04 | 1975-05-04 | Device for sealing oil well |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU570698A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6079497A (en) * | 1997-06-03 | 2000-06-27 | Camco International Inc. | Pressure equalizing safety valve for subterranean wells |
US6283217B1 (en) | 1998-08-06 | 2001-09-04 | Schlumberger Technology Corp. | Axial equalizing valve |
US6296061B1 (en) | 1998-12-22 | 2001-10-02 | Camco International Inc. | Pilot-operated pressure-equalizing mechanism for subsurface valve |
-
1975
- 1975-05-04 SU SU7502137394A patent/SU570698A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6079497A (en) * | 1997-06-03 | 2000-06-27 | Camco International Inc. | Pressure equalizing safety valve for subterranean wells |
US6283217B1 (en) | 1998-08-06 | 2001-09-04 | Schlumberger Technology Corp. | Axial equalizing valve |
US6296061B1 (en) | 1998-12-22 | 2001-10-02 | Camco International Inc. | Pilot-operated pressure-equalizing mechanism for subsurface valve |
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