CN104563972A - Small power deep well pumping unit - Google Patents
Small power deep well pumping unit Download PDFInfo
- Publication number
- CN104563972A CN104563972A CN201510014033.6A CN201510014033A CN104563972A CN 104563972 A CN104563972 A CN 104563972A CN 201510014033 A CN201510014033 A CN 201510014033A CN 104563972 A CN104563972 A CN 104563972A
- Authority
- CN
- China
- Prior art keywords
- pump
- turbine
- deep well
- circulating liquid
- oil
- 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.)
- Granted
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 230000008676 import Effects 0.000 claims description 12
- 239000003129 oil well Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a small power deep well pumping unit, and the small power deep well pumping unit comprises a turbine pump and a vane pump, the circulating fluid outlet of the turbine pump is connected with the inlet of the vane pump through a pipeline, the outlet of the vane pump is connected with the circulating fluid inlet of the turbine pump through a pipeline, a closed circulating channel is formed between the turbine pump and the vane pump and filled with the circulating fluid, the rotary shaft of the vane pump is connected with the output shaft of a driving motor, the rotary shaft of the turbine pump is connected with the rotary shaft of a screw pump, an oil pumping port is formed at the lower end of the screw pump while the upper end of the screw pump is connected with an oil discharge pipeline. The small power deep well pumping unit has remarkable result that no reversing abrasion is generated; the oil can be pumped in a small power; the oil well liquid column load is raised by hydraulic pressure, the impact and vibration load of the walking beam rod string are not generated and energy-saving effect is achieved; the length of the screw pump can be changed for increasing the pressure without limit on the supercharging area ratio, the lift of pump is raised by hydraulic pressure supercharging operation and the high lift of pump deep well oil pumping can be realized.
Description
Technical field
The present invention relates to petroleum production mechanical equipment technical field, specifically, is a kind of small-power deep well machine.
Background technique
At present, petroleum production pump, is divided into rod pump and rodless pump two kinds substantially, and be very restricted because rodless pump drops into comparatively large and using scope, therefore now most oil wells adopts rod pump to exploit.
In prior art, rod pump mostly is reciprocating plunger pump, converts the rotary motion of motor to oil hydraulic cylinder pumping by selector valve, thus oil has been extracted out the exploitation to oil well PetroChina Company Limited. by plunger pump.But the supercharging of oil hydraulic cylinder limits by area ratio, cannot accomplish very large in oil well, therefore its lift is lower, cannot be applied to deep well; Selector valve frequent operation hoop, serious wear, accelerates the rate of decay of pump, shortens the working life of pump and affects manufacturing efficiency; Plunger pump is formed and is restricted, and duty cycle short (2 ~ April) is unfavorable for improving oil production.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of small-power deep well machine, this pumping unit realizes small-power by hydraulic speed reducer structure and low speed oil pumping booster body and recovers the oil, without commutation wearing and tearing, can realize high-lift oil pumping by hydraulic booster, required drive motor power is little.
For achieving the above object, the present invention states a kind of small-power deep well machine, its key is: comprise turbine pump and vane pump, the circulating liquid outlet of described turbine pump is connected with the import of vane pump by pipeline, described blade delivery side of pump is connected with the circulating liquid import of turbine pump by pipeline, form airtight fluid path circulation canal between described turbine pump and vane pump and be filled with circulating liquid, the rotating shaft of described vane pump is connected on the output shaft of drive motor, the rotating shaft of described turbine pump is connected on the rotatingshaft of screw pump, the lower end of described screw pump is provided with oil pumping mouth, the upper end of screw pump connects flowline.
In use, high-speed driving motor and turbine pump are installed together, form hydraulic speed reducer structure by the circulating liquid loop that turbine pump is arranged, the kinetic energy of drive motor High Rotation Speed is converted to hydraulic speed reducer structure and exports rotational kinetic energy, thus drive low speed screw pump to carry out supercharging oil pumping.This pumping unit, compared with the existing reciprocating oil pumping unit of equal rated load, weares and teares without commutation, long service life, and required motor power is little; Adopt hydraulic pressure lift well liquid pillar load, without the shock and vibration load of walking beam rod string, because this reducing oscillating load, the fatigue of centrifugal pump is injured, there is certain energy-saving effect; Frequency control of motor speed is convenient, easily reaches energy-efficient effect; Threaded stem length by changing screw pump carrys out supercharging, does not affect by supercharging area ratio, increases moment and is directly proportional to threaded stem length, is convenient to realize high pressure oil pumping, promotes lift; Without the restriction of plunger pump stroke, oil production is large; Realize small-power (5 ~ 8KW) by hydraulic speed reducer structure and low speed oil pumping booster body to recover the oil, be suitable for 3000-5000 rice deep-well small displacement 5-10M2/ days oil extraction in oil fields.
Further technological scheme is, described drive motor, vane pump, turbine pump and screw pump set gradually from down to up at vertical direction.
By above-mentioned setting, the space occupied by whole pumping unit can be reduced, the oil well that bore is less can be applicable to, the power of pumping unit can be increased as far as possible, thus improve the oil pump capacity of this oil well.
Further, described turbine pump comprises the housing that is provided with chamber, turbine rotor is equiped with in described chamber, described circulating liquid outlet and circulating liquid import are all opened in the bottom of described housing, wherein said circulating liquid outlet communicates with the lower end of described chamber, and described circulating liquid import is communicated with the upper end of described chamber by the circulating liquid passage of enclosure interior.
Adopt said structure, circulating liquid flows downwards from the top of turbine pump inner cavity chamber, and the deadweight that can make full use of circulating liquid is supplied to the power of turbine rotation, more can provide enough oil pumping power to screw pump, have energy-saving effect.
Further, described oil pumping mouth is bell mouth shape structure, and its open-mouth end is downward.
Open-mouth end is arranged downwards to be convenient to extract crude oil, is convenient to carry out supercharging to oil pressure simultaneously, improves the lift of oil pumping.
Remarkable result of the present invention is: this pumping unit, compared with the existing reciprocating oil pumping unit of equal rated load, weares and teares without commutation, long service life, and required motor power is little; Threaded stem length by changing screw pump carrys out supercharging, does not affect by supercharging area ratio, increases moment and is directly proportional to threaded stem length, be convenient to realize deep well, promote lift; Without the restriction of plunger pump stroke, oil production is large.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention and working principle are described in further detail.
As shown in Figure 1, a kind of small-power deep well machine, comprise turbine pump 4 and vane pump 6, the circulating liquid outlet of described turbine pump 4 is connected by the import of pipeline with vane pump 6, the outlet of described vane pump 6 is connected with the circulating liquid import of turbine pump 4 by pipeline, form airtight fluid path circulation canal between described turbine pump 4 and vane pump 6 and be filled with circulating liquid, the output shaft that the rotating shaft of described vane pump 6 is connected to drive motor 7 is downwards gone up mutually, this drive motor 7 is connected with cable 8, the rotating shaft of described turbine pump 4 is upwards connected in screw pump 2 rotating shaft, the lower end of described screw pump 2 is provided with oil pumping mouth 3, the upper end of described screw pump 2 connects flowline 1.
See accompanying drawing 1, described turbine pump 4 comprises the housing that is provided with chamber, turbine rotor is equiped with in described chamber, described circulating liquid outlet and circulating liquid import are all opened in the bottom of described housing, wherein said circulating liquid outlet communicates with the lower end of described chamber, and described circulating liquid import is communicated with the upper end of described chamber by the circulating liquid passage 5 of enclosure interior.
As can be seen from Figure 1, described drive motor 7, vane pump 6, turbine pump 4 and screw pump 2 set gradually from down to up at vertical direction.
It can also be seen that from Fig. 1, described oil pumping mouth 3 is in bell mouth shape structure, and its open-mouth end is downward.
Its working principle is:
Drive motor 7 rotarily drives vane pump 6 and rotates, circulating liquid in turbine pump 4 is formed circulate, and then drive turbine pump 4 to rotate the deceleration realized drive motor 7, drive screw pump 2 to rotate simultaneously, crude oil is sucked from oil pumping mouth 3 and carries out supercharging, then sends from flowline 1.
In oil pumping process, this pumping unit is without commutation wearing and tearing, and required motor power is little; Threaded stem length by changing screw pump 2 carrys out supercharging, does not affect by supercharging area ratio, increases moment and is directly proportional to threaded stem length, be convenient to realize deep well, promote lift; Without the restriction of plunger pump stroke, oil production is large; Realize small-power (5 ~ 8KW) by hydraulic speed reducer structure and low speed oil pumping booster body to recover the oil, be suitable for 3000-5000 rice deep-well small displacement 5-10M2/ days oil extraction in oil fields.
Claims (4)
1. a small-power deep well machine, it is characterized in that: comprise turbine pump (4) and vane pump (6), the circulating liquid outlet of described turbine pump (4) is connected by the import of pipeline with vane pump (6), the outlet of described vane pump (6) is connected by the circulating liquid import of pipeline with turbine pump (4), form airtight fluid path circulation canal between described turbine pump (4) and vane pump (6) and be filled with circulating liquid, the rotating shaft of described vane pump (6) is connected on the output shaft of drive motor (7), the rotating shaft of described turbine pump (4) is connected on the rotatingshaft of screw pump (2), the lower end of described screw pump (2) is provided with oil pumping mouth (3), the upper end of screw pump (2) connects flowline (1).
2. small-power deep well machine according to claim 1, is characterized in that: described drive motor (7), vane pump (6), turbine pump (4) and screw pump (2) set gradually from down to up at vertical direction.
3. small-power deep well machine according to claim 1, it is characterized in that: described turbine pump (4) comprises the housing that is provided with chamber, turbine rotor is equiped with in described chamber, described circulating liquid outlet and circulating liquid import are all opened in the bottom of described housing, wherein said circulating liquid outlet communicates with the lower end of described chamber, and described circulating liquid import is communicated with the upper end of described chamber by the circulating liquid passage (5) of enclosure interior.
4. small-power deep well machine according to claim 1, is characterized in that: described oil pumping mouth (3) is in bell mouth shape structure, and its open-mouth end is downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014033.6A CN104563972B (en) | 2015-01-12 | 2015-01-12 | Small-power deep well machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014033.6A CN104563972B (en) | 2015-01-12 | 2015-01-12 | Small-power deep well machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104563972A true CN104563972A (en) | 2015-04-29 |
| CN104563972B CN104563972B (en) | 2017-11-14 |
Family
ID=53080957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014033.6A Active CN104563972B (en) | 2015-01-12 | 2015-01-12 | Small-power deep well machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563972B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223331A (en) * | 2018-01-06 | 2018-06-29 | 西南石油大学 | A kind of rod pumping pump and ground driving screw pump combined type oil pumping system |
| CN110714906A (en) * | 2019-10-28 | 2020-01-21 | 西南石油大学 | Screw rod drive is oil jack in pit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4828036A (en) * | 1987-01-05 | 1989-05-09 | Shell Oil Company | Apparatus and method for pumping well fluids |
| US4909337A (en) * | 1986-01-31 | 1990-03-20 | Kochnev Anatoly M | Rotor of a screw hydraulic downhole motor, method for its production and a device for its production |
| CN2267325Y (en) * | 1996-08-16 | 1997-11-12 | 孟达让 | Oil prodn. equipment with electric oil submersible screw pump |
| CN2747418Y (en) * | 2003-10-09 | 2005-12-21 | 周红民 | Energy-saving engine |
| CN101162018A (en) * | 2007-11-16 | 2008-04-16 | 长庆石油勘探局 | Decelerator-free oil-submersible screw pump |
| US20140158347A1 (en) * | 2012-11-27 | 2014-06-12 | Esp Completion Technologies L.L.C. | Methods and apparatus for sensing in wellbores |
| CN204402442U (en) * | 2015-01-12 | 2015-06-17 | 重庆科技学院 | A kind of small-power deep well machine |
-
2015
- 2015-01-12 CN CN201510014033.6A patent/CN104563972B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909337A (en) * | 1986-01-31 | 1990-03-20 | Kochnev Anatoly M | Rotor of a screw hydraulic downhole motor, method for its production and a device for its production |
| US4828036A (en) * | 1987-01-05 | 1989-05-09 | Shell Oil Company | Apparatus and method for pumping well fluids |
| CN2267325Y (en) * | 1996-08-16 | 1997-11-12 | 孟达让 | Oil prodn. equipment with electric oil submersible screw pump |
| CN2747418Y (en) * | 2003-10-09 | 2005-12-21 | 周红民 | Energy-saving engine |
| CN101162018A (en) * | 2007-11-16 | 2008-04-16 | 长庆石油勘探局 | Decelerator-free oil-submersible screw pump |
| US20140158347A1 (en) * | 2012-11-27 | 2014-06-12 | Esp Completion Technologies L.L.C. | Methods and apparatus for sensing in wellbores |
| CN204402442U (en) * | 2015-01-12 | 2015-06-17 | 重庆科技学院 | A kind of small-power deep well machine |
Non-Patent Citations (1)
| Title |
|---|
| 魏秦文等: "《潜油电机驱动采油技术的发展》", 《石油矿场机械》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223331A (en) * | 2018-01-06 | 2018-06-29 | 西南石油大学 | A kind of rod pumping pump and ground driving screw pump combined type oil pumping system |
| CN108223331B (en) * | 2018-01-06 | 2023-12-26 | 西南石油大学 | Combined oil pumping system of rod oil pump and ground driving screw pump |
| CN110714906A (en) * | 2019-10-28 | 2020-01-21 | 西南石油大学 | Screw rod drive is oil jack in pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104563972B (en) | 2017-11-14 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20200911 Address after: 610000 No. 1 Xiyuan Avenue, Chengdu City, Sichuan Province Patentee after: JINCHENG COLLEGE OF SICHUAN University Address before: 401331 Shapingba University District, Chongqing City Road, No. 20 Patentee before: Chongqing University of Science & Technology |