CN201155448Y - External valve type hydraulic self-sealing plunger oil pump - Google Patents
External valve type hydraulic self-sealing plunger oil pump Download PDFInfo
- Publication number
- CN201155448Y CN201155448Y CNU2007201873975U CN200720187397U CN201155448Y CN 201155448 Y CN201155448 Y CN 201155448Y CN U2007201873975 U CNU2007201873975 U CN U2007201873975U CN 200720187397 U CN200720187397 U CN 200720187397U CN 201155448 Y CN201155448 Y CN 201155448Y
- Authority
- CN
- China
- Prior art keywords
- valve
- pump
- plunger
- pump barrel
- type hydraulic
- 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 provides an external-valve hydraulic self-sealing plunger piston defueling pump, which mainly comprises a traveling valve, a plunger piston, a pump cylinder and a fixed valve, wherein, the fixed valve is firmly connected with the lower part of the pump cylinder; the traveling valve is arranged on the outer upper part of the plunger piston; the fixed valve that is arranged on the lower part of the pump cylinder is connected with a fixed locking bearing that is inserted into a locking bearing seat, so that the pump can be pulled out of the well through a hoisting mechanism; in addition, the defueling pump is provided with a cavity-differentiated gap-bridge joint, a backwash valve, etc. to form two special passages for the defueling and the washing, so that the pump examination and the washing operation are more convenient, thereby reducing the mining cost. The pump has the advantages of high efficiency, small pump diameter, small friction, long service life, convenient operation, no pollution, etc.
Description
Technical field:
The utility model belongs to petroleum production machinery lifting field, is specifically related to the plunger oil-well pump of pumping unit, but is a kind of small plunger footpath, hydraulic plunger oil well pump with self-styled function.
Background technique:
At present, it is one of traditional artificial lifting way of World Oil Industry that the oil pumping of bar plunger pump is arranged, and also is prevailing up to now artificial lift mode.The phase I of sucker-rod pumping technical development is the bush type plunger pump, and second stage is whole cartridge type plunger pump, a large amount of at present these modes that adopt.And the conventional plunger pump exists problems such as frictional resistance is big, efficient is low, operation complexity, the straightness accuracy that its main cause is a metal plunger with pump barrel exists causes with ellipticity error and cooperates interference, especially pump is used to contain conflux body, viscous crude and contains solid phase particle and have bigger surface friction drag more for a long time, along with gap smaller and polymer concentration become big, it is big that axial pressure becomes, produce lateral force, cause bar, canal curvature, effective stroke shortening, the pump efficiency of pump are reduced, finally cause bar, pipe to rub partially to break and leak harmful effects such as pump overhaul period shortening.Can only trip out roofbolt or tubing string by operation when fixing a breakdown, increase the cost of oil extraction.
On the other hand, the present plunger pump that generally uses, travelling valve (valve) are by being threaded in the plunger, and with the plunger one relative pump barrel motion in the pump barrel that coexists, so pump is directly bigger, is not suitable for the hole condition in minor diameter, little discharge capacity.
The model utility content:
The purpose of this utility model provides a kind of external valve type hydraulic self-sealing plunger oil-well pump, makes in its well that is applicable to minor diameter, little discharge capacity, and can solve problems such as conventional plunger pump frictional resistance is big, the big efficient of Theoretical flowing capacity is low, operation complexity.
The utility model external valve type hydraulic self-sealing plunger oil-well pump mainly comprises travelling valve, plunger, pump barrel and standing valve, and wherein: described standing valve is fixedly connected on the bottom of pump barrel, and travelling valve places the plunger exterior upper.
Above-described external valve type hydraulic self-sealing plunger oil-well pump, wherein, the standing valve of described pump barrel bottom connects fixing and locking supporting, and described fixing and locking supporting is plugged in the locking supporting base.
Described pump barrel upper end is provided with one group of scalable boss, and the bottom of plunger is provided with the groove that stretches into for scalable boss, and the in good time joint of the two has formed the shift mechanism of pump being pulled out ground.
Above-described external valve type hydraulic self-sealing plunger oil-well pump, wherein, if an outer coaxial tube is sheathed on outside travelling valve, plunger, pump barrel, standing valve or fixing and locking supporting and the locking supporting base, and connect one fen chamber gap bridge joint under described standing valve or locking supporting base, it establishes perforate in described outer tube outside and be communicated with fixing and locking supporting, standing valve, pump barrel, plunger, travelling valve and form the passage of pumping.
Above-described external valve type hydraulic self-sealing plunger oil-well pump, wherein, inside, described outer tube lower end is installed with a backwash valve, the fixedly connected outer tube wall of the valve seat of backwash valve, the bottom through-hole of valve seat is communicated with the outer tube bottommost, and the top through hole of valve seat is communicated with the flushing chamber of outer tube and the formation of branch chamber gap bridge joint and the cavity between outer tube and the pump barrel and forms the flushing designated lane.
Above-described external valve type hydraulic self-sealing plunger oil-well pump, wherein, described pump barrel is established seal section, but seal section is provided with the seal section shell of conducting pressure, and an elastic telescopic cover is housed in the shell, and closed assembly has a plurality of wear-resisting seal rings in elastic telescopic cover the inside.
Adopt above design, the utility model oil well pump is external with valve (valve), has reduced the pump footpath effectively, makes this new pump be applicable to that more small hole diameter, the output of borehole size between Φ 34.9mm to Φ 50.8mm is 0.5m
3/ d to 1m
3The hole condition of the little discharge capacity of/d.The standing valve of the pump barrel of this pump and pump barrel bottom is plugged in the locking supporting base by the fixing and locking supporting, by the to-and-fro motion of plunger in pump barrel (but also non-movable piston as required, make the pump barrel to-and-fro motion) realize the variation of pump volume, thus carry out imbibition and discharge opeing.By housing, elastic sleeve, three layers of pump barrel seal section that constitutes of seal ring, utilize the function of its hydraulic pressure self-sealing, make the up stroke of pump not have leakage, down stroke does not have frictional resistance.The joint of the scalable boss that groove that pump plunger is provided with and pump barrel are provided with can be implemented the inspection pump in the ground of pulling out that oil well pump is convenient and reliable.Be provided with a branch chamber gap bridge joint in the bottom of oil well pump, make pump form oil pumping, two designated lanes of flushing, this design makes the flushing operation totally thorough, has effectively prolonged the oil well pump inaction interval, has reduced cost for oil production.
Description of drawings:
Fig. 1 is the utility model external valve type hydraulic self-sealing plunger pump structure figure;
Fig. 2 is the partial enlarged drawing of seal section pump barrel among Fig. 1;
Fig. 3 is the utility model external valve type hydraulic self-sealing plunger oil-well pump work schematic representation;
Among the figure: 1. sucker rod, 2. travelling valve (valve), 34. plunger grooves, 3. plunger, 4. pump barrel seal section, 41. seal section housings, 42. elastic telescopic covers, 43. seal rings, 44. scalable boss, 5. pump barrel, 6. standing valve (valve), 7. fixing and locking supporting, 8. locking supporting base, 9. minute chamber gap bridge joint, 91. horizontal holes, 92. upright openings, 10. backwash valve, 11. outer tubes, 12. sleeve pipes.
Embodiment:
By shown in Figure 1, similar with existing oil well pump, the utility model external valve type hydraulic self-sealing plunger oil-well pump is equipped with sucker rod 1, travelling valve 2 from top to bottom successively and places plunger 3 in the pump barrel 5; Different with existing oil well pump is:
A seal section 4 is established on pump barrel 5 tops, fixedly connected standing valve 6 in bottom and fixing and locking supporting 7, and fixing and locking supporting 7 is plugged in 8 li of locking supporting bases, establishes the passage that communicates with standing valve 6 in the middle of the fixing and locking supporting 7;
The fixedly connected one minute chamber gap bridge joint 9 in locking supporting base 8 lower ends, branch chamber gap bridge joint 9 has horizontal hole 91 and the upright opening 92 that is interconnected, and upright opening 92 supports 7 middle channel connections with fixing and locking;
If an outer tube 11 is as cleaning hose or oil pipe, this outer tube 11 is set in outside the above each parts, and connects with a minute side of chamber gap bridge joint 9, and outer tube 11 sidewalls are offered a through hole with horizontal hole 91 relative positions of branch chamber gap bridge joint 9; Outer tube 11 and other are sheathed on and leave the gap between wherein the parts and form irrigation channel; The bottom of outer tube 11 is installed with a backwash valve 10, valve seat 13 fixedly connected outer tube 11 sidewalls of backwash valve 10, and the bottom through-hole of valve seat 13 is communicated with outer tube 11 bottommosts, and the top through hole of valve seat 13 is communicated with outer tube 11 and the flushing chamber of dividing chamber gap bridge joint 9 to form.
Adopt above the design, the utility model places standing valve (valve) 6 outside reciprocating plunger 3, the pump barrel 5, can subtract small pump diameter effectively.
In the utility model optimized project, for reaching the hydraulic pressure self-sealing function of oil well pump, the seal section 4 of pump barrel 5 has adopted optimal design, and referring to shown in Figure 2, but seal section 4 is provided with the seal section shell 41 of conducting pressure, an elastic telescopic cover 42 is housed in the shell, closed assembly has several wear-resisting seal rings 43 in elastic telescopic cover the inside, because the effect of seal section 4 inside and outside differential pressures, pump is when upstroke, sealing section 4 forms driving fit with plunger 3, realizes zero leakage; Then there is the gap during down stroke, no frictional resistance with plunger 3.Seal section 4 parts also can be referring to the design of describing in another patent 200520112641.2 of model utility people.
In another optimized project of the utility model, for being pulled out ground, overhauls by oil well pump, as shown in Figure 1, pump barrel seal section 4 is provided with one group of scalable boss 44, and the bottom of plunger 3 is provided with the groove 34 that stretches into for scalable boss 44, when sucker rod 1 lifts plunger 3 upwards the time, groove 34 walks to scalable boss 44 positions and telescope tab 44 is inserted in the groove 34, thereby plunger 3 is connected with pump barrel 5, draw sucker rod 1 in the reinforcing this moment again, the fixing and locking supporting 7 of fixedlying connected with pump barrel 5 is thrown off from locking supporting base 8, thereby the oil well pump upper component is pulled out ground.
Also in the optimized project, set up oil pumping passage and flushing channel at the utility model separately.Referring to shown in Figure 3, an axial more sheathed sleeve pipe 12 outside outer tube (being cleaning hose/oil pipe) 11, sleeve pipe 12 leaves the gap with outer tube 11 and forms the well-flushing passage.The horizontal hole 91 of set minute chamber gap bridge joint 9 and upright opening 92 upwards are communicated with fixing and locking successively and support 7 passages, standing valve 6, pump barrel 5, plunger 3, travelling valve 2 and form an oil pumping passage; And the cavity of the periphery of well-flushing passage, backwash valve 10, branch chamber gap bridge joint 9 and outer tube 11, outer tube 11 and the wherein inner cavity of installing between the parts (as pump barrel 5) are connected to form irrigation channel.During oil pumping, backwash valve 10 cuts out, and then liquid is promoted to ground by the oil pumping passage; During well-flushing, highly pressurised liquid injects the down-hole and enters the chamber, the end of outer tube 11 through the well-flushing passage, backs down flushing valve 10 and enters irrigation channel, and the heavy what thing in the oil well pump is washed, and after outer tube 11 returns ground, finishes the flushing operation.
More than multiple optimal design can be used in combination or use separately, therefore, oil well pump of the present utility model can be made the variation of multiple enforcement, does not enumerate one by one for this reason at this.
Adopt above design, the utility model reaches following beneficial effect:
This external valve type hydraulic self-sealing plunger oil-well pump adopts such scheme, first standing valve (valve) is placed outside reciprocating plunger, the pump barrel, can effectively subtract small pump diameter, make oil well pump of the present utility model be applicable to that more little hole diameter, the output of borehole size between Φ 34.9mm to Φ 50.8mm is 0.5m3/ d to 1m3The hole condition of/d small displacement. The new pump that has realized at present directly is domestic and international small pump diameter, and this technology reaches To domestic and international top standard.
Establish seal section on the pump barrel, high pressure outside the upstroke pump barrel chamber, elasticity shape takes place in the elastic telescopic cover of seal section Become, form good sealing, wastage goes to zero, and down stroke elastic telescopic cover restores to the original state the gap gradually Become big, frictional resistance goes to zero, and the friction that upstroke is born is effective friction of bearing load, and it is right to have reduced The wearing and tearing of pump barrel, the Special wear-resistant sealing ring has improved the service life of pump. Effective stroke increases under the square one, Down stroke does not have frictional resistance, reduces rod sag, increases effective stroke, and pump efficiency significantly improves.
During the inspection pump, groove, boss shift mechanism by plunger, pump barrel are provided with can draw oil well pump smoothly Go out ground, operation is convenient and strength-saving, and pollution-free (when playing pump, pump is draining automatically) reduces cost for oil production.
During well-flushing, inject highly pressurised liquid in sleeve pipe, highly pressurised liquid backs down backwash valve through the shaft bottom, Enter outer tube, return ground by outer tube, finish the flushing operation. This single-minded passage washing technology is clean Thoroughly, can reduce the operation number of times.
Claims (8)
1, a kind of external valve type hydraulic self-sealing plunger oil-well pump mainly comprises travelling valve, plunger, pump barrel and standing valve, it is characterized in that: described standing valve is fixedly connected on the bottom of pump barrel, and travelling valve places the plunger exterior upper.
2, external valve type hydraulic self-sealing plunger oil-well pump according to claim 1 is characterized in that: the standing valve of described pump barrel bottom connects fixing and locking supporting, and described fixing and locking supporting is plugged in the locking supporting base.
3, external valve type hydraulic self-sealing plunger oil-well pump according to claim 2, it is characterized in that: described pump barrel upper end is provided with one group of scalable boss, and the bottom of plunger is provided with the groove that stretches into for scalable boss, and the in good time joint of the two has formed the shift mechanism of pump being pulled out ground.
4, external valve type hydraulic self-sealing plunger oil-well pump according to claim 1, it is characterized in that: establish an outer coaxial tube and be sheathed on outside travelling valve, plunger, pump barrel, the standing valve, standing valve connects down one fen chamber gap bridge joint, and it establishes perforate in described outer tube outside and be communicated with outer fixing valve, pump barrel, plunger, travelling valve and form the passage of pumping.
5, external valve type hydraulic self-sealing plunger oil-well pump according to claim 3, it is characterized in that: establish an outer coaxial tube and be sheathed on outside travelling valve, plunger, pump barrel, standing valve, fixing and locking supporting and the locking supporting base, and described locking supporting base connects down one fen chamber gap bridge joint, and it establishes perforate in described outer tube outside and be communicated with fixing and locking supporting, standing valve, pump barrel, plunger, travelling valve and form the passage of pumping.
6, according to claim 4 or 5 described external valve type hydraulic self-sealing plunger oil-well pumps, it is characterized in that: inside, described outer tube lower end is installed with a backwash valve, the fixedly connected outer tube wall of the valve seat of backwash valve, the bottom through-hole of valve seat is communicated with the outer tube bottommost, and the top through hole of valve seat is communicated with the flushing chamber of outer tube and the formation of branch chamber gap bridge joint and the cavity between outer tube and the pump barrel and forms the flushing designated lane.
7, according to the arbitrary described external valve type hydraulic self-sealing plunger oil-well pump of claim 1 to 5, it is characterized in that: described pump barrel is established seal section, but seal section is provided with the seal section shell of conducting pressure, an elastic telescopic cover is housed in the shell, and closed assembly has a plurality of wear-resisting seal rings in elastic telescopic cover the inside.
8, external valve type hydraulic self-sealing plunger oil-well pump according to claim 6, it is characterized in that: described pump barrel is established seal section, but seal section is provided with the seal section shell of conducting pressure, and an elastic telescopic cover is housed in the shell, and closed assembly has a plurality of wear-resisting seal rings in elastic telescopic cover the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201873975U CN201155448Y (en) | 2007-12-24 | 2007-12-24 | External valve type hydraulic self-sealing plunger oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201873975U CN201155448Y (en) | 2007-12-24 | 2007-12-24 | External valve type hydraulic self-sealing plunger oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155448Y true CN201155448Y (en) | 2008-11-26 |
Family
ID=40103232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201873975U Expired - Fee Related CN201155448Y (en) | 2007-12-24 | 2007-12-24 | External valve type hydraulic self-sealing plunger oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155448Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092189A1 (en) * | 2007-12-24 | 2009-07-30 | Heilongjiang Jiaxin Petrochemical Machinery Co., Ltd. | External valve type hydraulic self-sealing piston oil well pump |
| CN109030137A (en) * | 2018-06-28 | 2018-12-18 | 中国石油大学(华东) | A kind of experimental provision and method of simulation frozen soil stratum cement sheath consolidation |
-
2007
- 2007-12-24 CN CNU2007201873975U patent/CN201155448Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009092189A1 (en) * | 2007-12-24 | 2009-07-30 | Heilongjiang Jiaxin Petrochemical Machinery Co., Ltd. | External valve type hydraulic self-sealing piston oil well pump |
| CN109030137A (en) * | 2018-06-28 | 2018-12-18 | 中国石油大学(华东) | A kind of experimental provision and method of simulation frozen soil stratum cement sheath consolidation |
| CN109030137B (en) * | 2018-06-28 | 2021-07-06 | 中国石油大学(华东) | Experimental device and method for simulating frozen soil stratum cement sheath consolidation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101469700A (en) | External valve type hydraulic self-sealing plunger oil-well pump | |
| CN101781979B (en) | Hydraulic driving oil extraction equipment | |
| CN201896729U (en) | Gas-proof load-reducing deep well defueling pump | |
| CN202117628U (en) | Liquid flow diversion valve | |
| CN201155448Y (en) | External valve type hydraulic self-sealing plunger oil pump | |
| CN201554704U (en) | Jet pump | |
| CN201778686U (en) | Oil-mixing and gas-preventing integrated lifting process pipe column | |
| CN207297303U (en) | One kind has bar lifting whole process to go out liquid oil well pump | |
| CN202645953U (en) | Immersion rod type heavy oil pump | |
| CN202955049U (en) | Double-barreled water jet pump | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN2725518Y (en) | Rod less hydraulic oil pumping system | |
| CN201078219Y (en) | Beam pumping unit drive type hydraulic oil pumping system without pole | |
| CN202531415U (en) | Phi 25mm small displacement solid plunger oil-well pump | |
| CN201228538Y (en) | Non-rod pumping unit | |
| CN213176001U (en) | Rodless oil well pump for rotary steering drilling system | |
| CN216588553U (en) | Integrated tubular column for gas injection and dilution production of heavy oil well | |
| CN103161433B (en) | Oil-well pump energy-storage enhancing device capable of compressing natural gas automatically | |
| CN2721868Y (en) | Deep-pumping oil production pipe column | |
| CN219654862U (en) | Hydraulic forced drainage device | |
| CN202370814U (en) | Gas bag type liquid-gas oil well pump | |
| CN202914282U (en) | Displacement type gas prevention deep sucker rod pump | |
| CN118008217B (en) | Three-stage serial pump deep pumping and drainage device and use method | |
| CN200985777Y (en) | Double tubes type non-rod hydraulic oil pumping system | |
| CN203516028U (en) | Fire-driving oil-well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20161224 |