CN2547906Y - Movable-barrel sand-preventing oil-well pump - Google Patents
Movable-barrel sand-preventing oil-well pump Download PDFInfo
- Publication number
- CN2547906Y CN2547906Y CN 02273378 CN02273378U CN2547906Y CN 2547906 Y CN2547906 Y CN 2547906Y CN 02273378 CN02273378 CN 02273378 CN 02273378 U CN02273378 U CN 02273378U CN 2547906 Y CN2547906 Y CN 2547906Y
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- CN
- China
- Prior art keywords
- sand
- pump
- sediment pipe
- plunger piston
- sands
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- Expired - Lifetime
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- Reciprocating Pumps (AREA)
Abstract
A movable-barrel sand-preventing oil-well pump relates to an oil-well pump of a low yield sandy well, comprising a plunger piston assembly (8), a fixation valve (16) arranged on the upper end of the plunger piston assembly, a pump barrel (7), a traveling valve (4) arranged on the upper end of the pump barrel, an upper sands setting pipe (2), a lower sands setting pipe (13), a pole support (10) and a plunger piston bridge type steady rest, wherein, the plunger piston assembly is fixed on the plunger piston bridge type steady rest through a pole support; the lower sands setting pipe is sleeved on the outside of the plunger piston bridge type steady rest; an inlet port (20) on the lower sands setting pipe is communicated with a feeding passage (19) inside the pump though a hole (11-1) on the plunger piston bridge type steady rest; the upside of the lower sands setting pipe is provided with the upper sands setting pipe; a sand setting passage (17) is formed between the upper sand setting pipe and the lower sand setting pipe and the pump barrel inside the and the plunger piston bridge type steady rest. The utility model is applicable to a low yield sandy well. When sands in oil liquid sink during the process of pumping oil, the sands do not cover the pump and the fixation valve, thereby the phenomena of stuck pump and sand filling are avoided.
Description
Technical field: the utility model relates to a kind of oil well pump that is used for the low yield sand well.
Background technique: present low yield sand well, particularly go out the well of fine silt and mud, because oil pump capacity is low, the oil stream rate of climb in oil pipe and the pump line is slow, a little less than the oil stream prop-carrying capacity, cause in oil pump down stroke or stop pumping process, be embedded on the pump under the sand in the fluid or on the standing valve, holddown and sand plug phenomenon occur.
Summary of the invention: the utility model is a kind of movable barrel type sand-proof oil-well pump of design, and this oil well pump has solved the problem that present low yield sand well is prone to holddown and sand plug.The utility model comprises plunger piston assembly 8, be installed in the standing valve 16 of plunger piston assembly 8 upper ends, pump barrel 7, be installed in the travelling valve 4 of pump barrel 7 upper ends, the utility model also includes sand sediment pipe 2, following sand sediment pipe 13, pole 10 and plunger bridge-type fixed support 11, plunger piston assembly 8 is fixed on the plunger bridge-type fixed support 11 by pole 10, following sand sediment pipe 13 is socketed in the outside of plunger bridge-type fixed support 11, oil inlet hole 20 on the following sand sediment pipe 13 is connected with oil inlet passage 19 in the pump by the hole 11-1 on the plunger bridge-type fixed support 11, be provided with sand sediment pipe 2 above the sand sediment pipe 13 down, forming sand setting passage 17 between last sand sediment pipe 2 and following sand sediment pipe 13 and its inner pump barrel 7 and the plunger bridge-type fixed support 11.Working principle of the present utility model is: during up stroke, sucker rod drives pump barrel 7 and moves upward, and travelling valve 4 is closed, the pump chamber volume increases, pressure reduces, and this moment, standing valve 16 was opened, and down-hole fluid enters pump chamber by the outer sand control screen 12 of pump from the oil inlet passage 19 of pump; During down stroke, sucker rod drives pump barrel and moves downward, and the fluid in the pump chamber is discharged on the pump in the oil pipe; During stop pumping, the floating sand in the tubing string of pump barrel top sinks voluntarily, and sand sinks by the sand setting passage in last sand sediment pipe 2 and the following sand sediment pipe 13 17.The utility model is applicable to low yield sand well, fine powder sand drain and mud well.Sand in oil pumping process in the fluid can not be embedded on the pump when sinking and standing valve on, avoided the generation of holddown and sand plug phenomenon.
Fig. 1 is the structural representation of embodiment, and Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
Embodiment: present embodiment is made up of upper connection 1, last sand sediment pipe 2, travelling valve 4, pump barrel 7, plunger piston assembly 8, box cupling 9, pole 10, plunger bridge-type fixed support 11, the outer sand control screen 12 of pump, following sand sediment pipe 13, plug 14, standing valve 16 and lower contact 15.Standing valve 16 is installed in the upper end of plunger piston assembly 8, and pump barrel 7 is enclosed within the outside of plunger piston assembly 8 and standing valve 16, and pump barrel 7 moves up and down with respect to plunger piston assembly 8.Travelling valve 4 is installed in the upper end of pump barrel 7.The pole 10 of plunger piston assembly 8 below it is fixed on the plunger bridge-type fixed support 11.Following sand sediment pipe 13 is socketed in the outside of plunger bridge-type fixed support 11, and end is connected with the tube wall of following sand sediment pipe 13 about plunger bridge-type fixed support 11.Oil inlet hole 20 on the following sand sediment pipe 13 is connected with oil inlet passage 19 in the pump by the hole 11-1 on the plunger bridge-type fixed support 11.Last sand sediment pipe 2 be located at down sand sediment pipe 13 above, be connected by box cupling 9 between last sand sediment pipe 2 and the following sand sediment pipe 13.The outside of the oil inlet hole 20 on following sand sediment pipe 13 is with sand control screen 12 outside the pump.The lower end of sand control screen 12 is connected with plug 14 outside pump.Be connected with upper connection 1 in the upper end of last sand sediment pipe 2, be connected with lower contact 15 in the lower end of following sand sediment pipe 13.Form sand setting passage 17 between last sand sediment pipe 2 and following sand sediment pipe 13 and its inner pump barrel 7 and the plunger bridge-type fixed support 11.
Claims (5)
1, the movable barrel type sand-proof oil-well pump, it comprises plunger piston assembly (8), be installed in the standing valve (16) of plunger piston assembly (8) upper end, pump barrel (7), be installed in the travelling valve (4) of pump barrel (7) upper end, it is characterized in that it also includes sand sediment pipe (2), following sand sediment pipe (13), pole (10) and plunger bridge-type fixed support (11), plunger piston assembly (8) is fixed on the plunger bridge-type fixed support (11) by pole (10), following sand sediment pipe (13) is socketed in the outside of plunger bridge-type fixed support (11), oil inlet hole (20) on the following sand sediment pipe (13) is connected by the interior oil inlet passage (19) of hole (11-1) on the plunger bridge-type fixed support (11) and pump, be provided with sand sediment pipe (2) above the sand sediment pipe (13) down, forming sand setting passage (17) between last sand sediment pipe (2) and following sand sediment pipe (13) and its inner pump barrel (7) and the plunger bridge-type fixed support (11).
2, movable barrel type sand-proof oil-well pump according to claim 1, it is characterized in that plunger bridge-type fixed support (11) about hold and be connected with the tube wall of following sand sediment pipe (13).
3, movable barrel type sand-proof oil-well pump according to claim 1 is characterized in that being connected by box cupling (9) between sand sediment pipe (2) and the following sand sediment pipe (13).
4, movable barrel type sand-proof oil-well pump according to claim 1 is characterized in that the outside of the oil inlet hole (20) on following sand sediment pipe (13) is with sand control screen outside the pump (12).
5, according to claim 1,3 described movable barrel type sand-proof oil-well pumps, it is characterized in that being connected with upper connection (1), be connected with lower contact (15) in the lower end of following sand sediment pipe (13) in the upper end of last sand sediment pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273378 CN2547906Y (en) | 2002-05-22 | 2002-05-22 | Movable-barrel sand-preventing oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273378 CN2547906Y (en) | 2002-05-22 | 2002-05-22 | Movable-barrel sand-preventing oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547906Y true CN2547906Y (en) | 2003-04-30 |
Family
ID=33737864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273378 Expired - Lifetime CN2547906Y (en) | 2002-05-22 | 2002-05-22 | Movable-barrel sand-preventing oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547906Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454476A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气股份有限公司 | Bridge-crossing type inverted pull-down pump |
| CN118110658A (en) * | 2024-05-02 | 2024-05-31 | 山东高原油气装备有限公司 | Exhaust type oil pump for marine oil-gas drill |
-
2002
- 2002-05-22 CN CN 02273378 patent/CN2547906Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454476A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气股份有限公司 | Bridge-crossing type inverted pull-down pump |
| CN104454476B (en) * | 2013-09-13 | 2016-05-11 | 中国石油天然气股份有限公司 | Bridge-crossing type inverted pull-down pump |
| CN118110658A (en) * | 2024-05-02 | 2024-05-31 | 山东高原油气装备有限公司 | Exhaust type oil pump for marine oil-gas drill |
| CN118110658B (en) * | 2024-05-02 | 2024-07-02 | 山东高原油气装备有限公司 | Exhaust type oil pump for marine oil-gas drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120522 Granted publication date: 20030430 |