CN2895731Y - Back-washing sand-proof sieving-pipe oil-pumping apparatus - Google Patents
Back-washing sand-proof sieving-pipe oil-pumping apparatus Download PDFInfo
- Publication number
- CN2895731Y CN2895731Y CN 200620090463 CN200620090463U CN2895731Y CN 2895731 Y CN2895731 Y CN 2895731Y CN 200620090463 CN200620090463 CN 200620090463 CN 200620090463 U CN200620090463 U CN 200620090463U CN 2895731 Y CN2895731 Y CN 2895731Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- sieving
- proof
- plunger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a back-washing sand-proof sieving-pipe oil-pumping apparatus: A ring valve crossing the pump is arranged between a cylinder body and a pump barrel, a sand-proof sieving- pipe and a pressure-adding plunger are arranged in the cylinder body, an oil entrance hole is arranged on the urn body, a plunger of oil-pump is arranged in the pump barrel. One end of the sand-proof sieving-pipe connects with the pressure-adding plunger, the plunger of oil-pump connects with the pressure-adding plunger through a pulling pole. Since the plunger of the oil-pump connects with the pressure-adding plunger through a pulling pole without any increase in the power and load of the oil-pump, so they rush up simultaneously. Since the cross section of the inner cavity surface of the cylinder body is two times larger than the internal cross section of the pump barrel, when plunger of the oil-pump rushes up, less than 1/2 of the oil is sucked into the pump, the residual 1/2 of the oil is extruded back into the sand-proof sieving-pipe, and then effuses from the sand-proof sieving-pipe after flushing the fine sands attached on the wall of the sand-proof sieving-pipe, thereby the device prolongs the service life and increases the working efficiency of the pumping unit with a filtrating precision below 0.77mm. Besides, the utility model can match with conventional pumping units of different apertures of national standard.
Description
Technical field:
The utility model relates to a kind of oil rig, especially relates to a kind of backwash sand control screen oil rig.
Background technology:
At present, the most of viscositys of the crude oil that adopts in domestic each elephant are high and contain a large amount of fine silts, and oil well pump is in working order the time, be secondary the pressure in the sand control screen, and the fine silt in the crude oil easily is adsorbed on the anti-screen casing outer wall, difficult drop-off, thereby screen casing is stopped up, cause oil well pump to quit work.
Summary of the invention:
The purpose of this utility model provides a kind of backwash sand control screen oil rig that utilizes the power of old pumping unit and do not increase oil pumper load; The purpose of this utility model is achieved through the following technical solutions:
A kind of backwash sand control screen oil rig, comprise fuel feed hole, sand control filter sieve tube, charged piston, cylinder body, cross pump ring valve, pull bar, be provided with pump ring valve between cylinder body and the pump barrel, be provided with sand control filter sieve tube, charged piston in the cylinder body, cylinder body is provided with fuel feed hole, be provided with oil pump plunger piston in the pump barrel, an end of sand control filter sieve tube connects charged piston, and oil pump plunger piston is connected with charged piston by pull bar.
Connect shunting recoil valve assembly on the described sand control filter sieve tube.
The utility model has the advantages that: at the power that does not increase oil pumper and do not increase under the situation of oil pumper load, because oil pump plunger piston is connected with pull bar with charged piston, so synchronous upper punch, contain area more than 2 times because the inner chamber of cylinder block section is long-pending greater than pump barrel, to be pumped in the pump less than 1/2 fluid in the cylinder body during oil pump plunger piston upper punch, and residue 1/2 above fluid pushes in the sand filter sieve tube that goes back on defense in the cylinder body, flushing is flowed out the sand control filter sieve tube after being attached to the fine silt of preventing on the screen casing outer wall, thereby the life cycle of oil pumper is prolonged, increase work efficiency, its filtering accuracy is less than 0.07mm; In addition, the common oil well pump of the configurable different bore national standards of the utility model.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
The specific embodiment:
With reference to Fig. 1, backwash sand control screen oil rig: form by fuel feed hole 1, sand control filter sieve tube 2, charged piston 3, cylinder body 5, mistake pump ring valve 6, pull bar 7, be provided with pump ring valve 6 between its cylinder body 5 and the pump barrel 9, be provided with sand control filter sieve tube 2, charged piston 3 in the cylinder body, cylinder body is provided with fuel feed hole 1, be provided with oil pump plunger piston 8 in the pump barrel, an end of sand control filter sieve tube connects charged piston, and oil pump plunger piston is connected with charged piston by pull bar 7.When the pressure of cylinder body outside during, need on the sand control filter sieve tube, connect and shunt recoil valve assembly 4 greater than the pressure of cylinder interior.
The course of work: make upper and lower stroke synchronous operation by crossing pump ring valve, pull bar, oil pump plunger piston.When oil pumper is worked, enter the upper punch state, crossing pump ring valve opens, because oil pump plunger piston is connected with pull bar with charged piston, so upper punch contains area more than 2 times because the inner chamber of cylinder block section is long-pending greater than pump barrel synchronously, will be pumped in the pump less than 1/2 fluid in the cylinder body during oil pump plunger piston upper punch, and residue 1/2 above fluid pushes in the sand filter sieve tube that goes back on defense in the cylinder body, and flushing is flowed out the sand control filter sieve tube after being attached to the fine silt of preventing on the screen casing outer wall; When oil pumper is worked, enter down towards state, crossing pump ring valve closes, utilize the suction that dashes under the charged piston in outer crude oil natural pressure of sand control filter sieve tube and the cylinder body, fluid is entered in the cylinder body by fuel feed hole, seldom entering in the cylinder body smoothly by the sand control filter sieve tube under the resistance, thereby filling oil in the cylinder body when guaranteeing upper punch.
According to survey data,, thereby reach the purpose of flushing if the pressure of cylinder body oil outer during greater than the pressure of cylinder interior oil, will squeeze out oil outside the sand control filter sieve tube by shunting recoil valve assembly.
Claims (2)
1, a kind of backwash sand control screen oil rig, it is characterized in that: comprise fuel feed hole, sand control filter sieve tube, charged piston, cylinder body, cross pump ring valve, pull bar, be provided with pump ring valve between cylinder body and the pump barrel, be provided with sand control filter sieve tube, charged piston in the cylinder body, cylinder body is provided with fuel feed hole, be provided with oil pump plunger piston in the pump barrel, an end of sand control filter sieve tube connects charged piston, and oil pump plunger piston is connected with charged piston by pull bar.
2, a kind of backwash sand control screen oil rig according to claim 1 is characterized in that: connect shunting recoil valve assembly on the described sand control filter sieve tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090463 CN2895731Y (en) | 2006-04-19 | 2006-04-19 | Back-washing sand-proof sieving-pipe oil-pumping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090463 CN2895731Y (en) | 2006-04-19 | 2006-04-19 | Back-washing sand-proof sieving-pipe oil-pumping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895731Y true CN2895731Y (en) | 2007-05-02 |
Family
ID=38065310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090463 Expired - Fee Related CN2895731Y (en) | 2006-04-19 | 2006-04-19 | Back-washing sand-proof sieving-pipe oil-pumping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895731Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698481A (en) * | 2012-04-01 | 2012-10-03 | 江苏大学 | Automatic filtering and grain taking device for cooling lubricating circuit |
-
2006
- 2006-04-19 CN CN 200620090463 patent/CN2895731Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698481A (en) * | 2012-04-01 | 2012-10-03 | 江苏大学 | Automatic filtering and grain taking device for cooling lubricating circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202937296U (en) | Multifunctional coal bed gas exploitation process pipe string | |
| CN202090886U (en) | External metal cage pipe packer | |
| CN2895731Y (en) | Back-washing sand-proof sieving-pipe oil-pumping apparatus | |
| CN201443367U (en) | Oil pumping well power cylinder type hydraulic device | |
| CN2646382Y (en) | Perforation and formation testing and flowing thribble working test oil equipment of jet injector | |
| CN203641181U (en) | Hydraulic power conversion control device | |
| CN203670171U (en) | Annular-valve type anti-cavitation oil well pump | |
| CN202484574U (en) | Lubricating oil filter | |
| CN202091157U (en) | Double-suction oil sucking pump | |
| CN201554632U (en) | Eccentric gap bridge separate-pumping mixed-recovery oil well pump | |
| CN201425018Y (en) | Pipe column drainage pump for oil well | |
| CN103939319B (en) | Three-tube type linear dynamo oil pump | |
| CN206860418U (en) | A kind of stepping oil extraction pump | |
| CN2611585Y (en) | Anti-pollution check valve for offshore oil field | |
| CN202531415U (en) | Phi 25-millimeter small displacement solid plunger piston oil-well pump | |
| CN201581856U (en) | Multilevel compressive extro-pipe packer used for segmented completion of horizontal well | |
| CN105156078B (en) | The hydraulic oil producing device that oil extraction is used | |
| CN204532798U (en) | A kind of oil-well pump oil inlet valve | |
| CN205000953U (en) | Hydraulic pressure oil production device that oil extraction was used | |
| CN204692060U (en) | A kind of low-resistance sand-proof oil-well pump | |
| CN204252978U (en) | A kind of oil gas field negative pressure quarrying apparatus | |
| CN2398442Y (en) | Negative-pressure pulse deep well oil production pump device | |
| CN116122773B (en) | Single-double-tube combined jet pipe column | |
| CN2251636Y (en) | Separate zone production synchronous oil pump | |
| CN214697800U (en) | Hydraulic load-reducing oil pumping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20100419 |