CN111395998A - Energy complementary balanced type simple oil extraction device - Google Patents
Energy complementary balanced type simple oil extraction device Download PDFInfo
- Publication number
- CN111395998A CN111395998A CN202010190004.6A CN202010190004A CN111395998A CN 111395998 A CN111395998 A CN 111395998A CN 202010190004 A CN202010190004 A CN 202010190004A CN 111395998 A CN111395998 A CN 111395998A
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- Prior art keywords
- motor
- lifting screw
- screw rod
- lifting
- supporting
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- 238000000605 extraction Methods 0.000 title claims abstract description 21
- 230000000295 complement effect Effects 0.000 title claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000003921 oil Substances 0.000 claims description 35
- 238000010248 power generation Methods 0.000 claims description 22
- 239000003990 capacitor Substances 0.000 claims description 21
- 238000004146 energy storage Methods 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
- E21B43/121—Lifting well fluids
-
- 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
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
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- 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)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an energy complementary balanced type simple oil extraction device which comprises a wellhead device and a power mechanism, wherein the power mechanism comprises a motor, a limiting block, a lifting nut and a motor hollow shaft, the motor hollow shaft is arranged in the motor and is controlled by the motor to rotate, the lifting nut is arranged at the upper end of the motor hollow shaft and synchronously rotates with the motor hollow shaft, the lifting screw rod is in transmission connection with the lifting nut through threads, the upper end of the limiting block is inserted into a groove-shaped slideway on the lifting screw rod and is used for limiting the rotation of the lifting screw rod, the lower end of the limiting block is fixed on the motor, a supporting barrel is arranged above the wellhead device, a supporting and lubricating assembly for lubricating the lifting screw rod is arranged at the upper end of the supporting barrel, and the motor is arranged on the supporting and. The invention can replace the existing mechanical lifting equipment or oil pumping equipment of an oil production well to realize linear reciprocating lifting motion, and can realize the parallel use of a plurality of machines to achieve better energy-saving effect.
Description
Technical Field
The invention relates to the technical field of oil extraction equipment, in particular to an energy complementary balanced type simple oil extraction device.
Background
The mechanical oil extraction method is the most main oil extraction method at present, and the beam pumping unit is the most common pumping unit which is used at the earliest and plays a very important role in the petroleum development history of China. Its theory of operation is that the motor passes through four-bar linkage, turns into reciprocating motion with rotary motion to drive polished rod and sucker rod reciprocating linear motion from top to bottom, the rethread sucker rod transmits this motion for the oil-well pump in the pit, realizes lifting oil recovery, and beam-pumping unit has following problem: 1. the problem of low transmission efficiency: the transmission links of the beam pumping unit are more, which is one of the reasons for low efficiency of the beam pumping unit: 2. problems after the beam-pumping unit increases the stroke: when the stroke of the beam pumping unit is increased, the torque of the reduction gearbox is increased in proportion: in addition, after the stroke is increased, the size of the crank and rocker mechanism is inevitably increased due to the limitation of the swing angle of the walking beam, so that the external size and the weight of the oil pumping machine are greatly increased, and therefore, the machine type is not easy to realize the requirements of long stroke and low stroke frequency and is difficult to meet the requirements of oil extraction operation of heavy oil wells, deep pumping wells and gas-containing wells; 3. the inertial load cannot be effectively utilized, and resources are wasted; 4. power mismatch problem: on the occasion of direct start with power frequency, the required starting torque of the beam-pumping unit is about more than one time of normal work, so that the power of the adopted motor is larger in design, the load is lighter in normal oil pumping, the required torque is smaller, the problem that the load characteristic of the sucker rod is not matched with the mechanical characteristic of the motor occurs, and the phenomenon of low power utilization rate of the motor is serious.
Disclosure of Invention
The invention provides an energy complementary balanced type simple oil extraction device which can effectively solve the technical problems mentioned in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a complementary balanced type oil recovery device that simply adopts of energy, includes wellhead assembly and power unit, power unit includes motor, stopper, lifting nut, lifting screw and motor hollow shaft, place in the motor hollow shaft and rotate by motor control, lifting nut set up in motor hollow shaft the upper end and with motor hollow shaft between synchronous rotation, lifting screw and lifting nut between be connected through screw thread transmission, the upper end of stopper inserts and is located the cell type slide on lifting screw and is used for restricting lifting screw rotatory, the lower extreme of stopper is fixed on the motor, wellhead assembly's top is equipped with a supporting cylinder, the upper end of a supporting cylinder is equipped with carries out lubricated assembly of support to lifting screw, the motor sets up on supporting lubricated assembly, lifting screw's lower extreme passes motor, supports behind lubricated assembly, the supporting cylinder in proper order with the sucker rod fixed connection who sets up in wellhead assembly, the stopper is L type structure.
Preferably, the support cylinder is fixedly connected with the wellhead device through a wellhead flange plate.
Preferably, an outer shell wrapping the lifting screw is further arranged on the motor, and the limiting block is located inside the outer shell.
Preferably, the energy-saving control device comprises a control cabinet, wherein a frequency conversion capacitor and an energy storage capacitor are arranged inside the control cabinet, a motor junction box is arranged on the motor, the motor junction box is electrically connected with a frequency converter through a cable, and the frequency converter is electrically connected with the energy storage capacitor.
Preferably, a lubricating port is formed in the supporting and lubricating assembly, and lubricating oil put into the lubricating port lubricates the lifting screw.
Preferably, the energy storage device further comprises a power generation device for charging the energy storage capacitor, and the power generation device is connected with the energy storage capacitor through a power generation cable.
Preferably, the power generation equipment adopts solar power generation or wind power generation.
Compared with the prior art, the invention has the beneficial effects that:
1. the motor controls the motor hollow shaft to rotate, the lifting nut arranged at the upper end of the motor hollow shaft and the motor hollow shaft can synchronously rotate, but the upper end of the limiting block is inserted into a groove-shaped slide way arranged on the lifting screw rod and used for limiting the axial rotation of the lifting screw rod, and the lifting screw rod connected with the lifting nut through thread transmission only moves up and down, so that the lifting screw rod drives the sucker rod to move up and down to drive equipment below a wellhead device to realize up-and-down reciprocating linear motion, thereby effectively extracting oil. The invention can replace the existing mechanical lifting equipment or oil pumping equipment of an oil production well to realize linear reciprocating lifting motion, and can realize the parallel use of a plurality of machines to achieve better energy-saving effect.
2. The motor drives the lifting screw to move upwards to extract oil, then the motor decelerates until stopping rotation, when the lifting screw is not driven by the motor, the load of the sucker rod acts on the lifting screw to drive the lifting screw to move downwards, the motor starts to rotate in the opposite direction, the lifting nut drives the hollow shaft of the motor to rotate, the motor has a power generation function and generates power for the frequency converter, and the frequency converter is connected with the energy storage capacitor, so that the power can be stored in the energy storage capacitor, and the power is supplied to the motor when the next oil extraction process needs to supply power, and the aim of saving the power is fulfilled.
Drawings
FIG. 1 is a schematic structural diagram of an energy complementary balanced type SIMPLE oil recovery device according to the present invention;
in the figure, 1, a motor, 2, a motor hollow shaft, 3, a lifting nut, 4, a lifting screw, 5, a limiting block, 6, an outer shell, 7, a supporting lubricating assembly, 8, a supporting cylinder, 9, a wellhead flange plate, 10, a sucker rod, 11, a wellhead device, 12, a motor junction box, 13, a cable, 14, a control cabinet, 15, a frequency converter, 16, an energy storage capacitor, 17, power generation equipment, 18 and a power generation cable.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides an energy complementary balanced type simple oil extraction device, which comprises a wellhead device 11 and a power mechanism, wherein the power mechanism comprises a motor 1, a limit block 5, a lifting nut 3, a lifting screw rod 4 and a motor hollow shaft 2, the motor hollow shaft 2 is arranged in the motor 1 and is controlled by the motor 1 to rotate, the lifting nut 3 is arranged at the upper end of the motor hollow shaft 2 and synchronously rotates with the motor hollow shaft 2, the lifting screw rod 4 is in threaded transmission connection with the lifting nut 3, the limit block 5 is of an L type structure, the upper end of the limit block 5 is inserted into a groove-shaped slide way on the lifting screw rod 4 and is used for limiting the rotation of the lifting screw rod 4, and the lower end of the limit block 5 is fixed on the motor 1.
The motor 1 controls the motor hollow shaft 2 to rotate, the lifting nut 3 arranged at the upper end of the motor hollow shaft 2 in the motor hollow shaft 2 and the motor hollow shaft 2 can synchronously rotate, but the upper end of the limiting block 5 is inserted into a groove-shaped slide way arranged on the lifting screw rod 4 and used for limiting the axial rotation of the lifting screw rod 4, and the lifting screw rod 4 connected with the lifting nut 3 through thread transmission only moves up and down.
The oil extraction method is characterized in that a support cylinder 8 is arranged above the wellhead device 11, a support lubrication assembly 7 for lubricating the lifting screw rod 4 is arranged at the upper end of the support cylinder 8, the motor 1 is arranged on the support lubrication assembly 7, the lower end of the lifting screw rod 4 sequentially penetrates through the motor 1, the support lubrication assembly 7 and the support cylinder 8 and then is fixedly connected with a sucker rod 10 arranged in the wellhead device 11, the lifting screw rod 4 drives the sucker rod 10 to move up and down to drive equipment below the wellhead device 11 to realize up and down reciprocating linear motion so as to effectively extract oil, the oil extraction method has high transmission efficiency, the load characteristic of the sucker rod 10 is matched with the mechanical characteristic of the motor through the action of the lifting screw rod 4, the power generation equipment 17 can charge the energy storage capacitor 16, the power mechanism preferentially uses the energy of the energy storage capacitor 16 to achieve the purpose of energy saving, and the oil extraction method can replace the existing mechanical lifting equipment or oil extraction well oil extraction equipment to realize, and a plurality of the devices can be connected in parallel to achieve better energy-saving effect.
The supporting cylinder 8 is fixedly connected with the wellhead device 11 through a wellhead flange 9, the motor 1 is further provided with an outer shell 6 wrapping the lifting screw rod 4, the limiting block 5 is located inside the outer shell 6, the energy complementary balanced type simple oil extraction device comprises a control cabinet 14, a frequency converter 15 and an energy storage capacitor 16 are arranged inside the control cabinet 14, the motor 1 is provided with a motor junction box 12, the motor junction box 12 is electrically connected with the frequency converter 15 through a cable 13, the frequency converter 15 is electrically connected with the energy storage capacitor 16, a lubricating port is formed in the supporting and lubricating assembly 7, and lubricating oil put into the lubricating port lubricates the lifting screw rod 4.
The energy complementary balanced type simple oil extraction device further comprises power generation equipment 17 for charging the energy storage capacitor 16, wherein the power generation equipment 17 is connected with the energy storage capacitor 16 through a power generation cable 18, and the power generation equipment can generate power in a solar power generation or wind power generation mode.
The oil extraction process of the invention can be divided into two processes of up stroke and down stroke, during the up stroke, the motor 1 drives the lifting screw 4 to move upwards to drive the sucker rod 10 to move upwards, thereby oil extraction is carried out, after the up stroke is finished, the motor 1 decelerates until the motor stops rotating, when the lifting screw 4 is not driven by the motor 1, the load of the sucker rod 10 acts on the lifting screw 4 to drive the lifting screw 4 to move downwards, at the moment, the motor 1 starts to rotate in the opposite direction, the lifting nut 3 drives the motor hollow shaft 2 to rotate, at the moment, the motor 1 becomes a generator to generate electricity for the frequency converter 15, because the frequency converter 15 is connected with the energy storage capacitor 16, the electricity can be stored in the energy storage capacitor 16, and when the next stroke needs to supply electricity, the electricity can be supplied to the motor 1, thereby achieving the.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (7)
1. The energy complementary balanced type simple oil extraction device comprises a wellhead device and a power mechanism, and is characterized in that the power mechanism comprises a motor, a limiting block, a lifting nut, a lifting screw rod and a motor hollow shaft, the motor hollow shaft is arranged in the motor and is controlled by the motor to rotate, the lifting nut is arranged at the upper end of the motor hollow shaft and synchronously rotates with the motor hollow shaft, the lifting screw rod is in threaded transmission connection with the lifting nut, the upper end of the limiting block is inserted into a groove-shaped slide way on the lifting screw rod and is used for limiting the rotation of the lifting screw rod, the lower end of the limiting block is fixed on the motor, a supporting barrel is arranged above the wellhead device, a supporting and lubricating assembly for lubricating the lifting screw rod is arranged at the upper end of the supporting barrel, the motor is arranged on the supporting and lubricating assembly, the lower end of the lifting screw rod sequentially penetrates through the motor, the supporting and lubricating assembly and the supporting barrel and is fixedly connected with a sucker rod.
2. The energy complementary balanced type improvised oil recovery device as claimed in claim 1, wherein: and the supporting cylinder is fixedly connected with the wellhead device through a wellhead flange plate.
3. The energy complementary balanced type improvised oil recovery device as claimed in claim 2, wherein: still be equipped with the shell body of parcel lifting screw on the motor, the stopper is located the inside of shell body.
4. The energy complementary balanced type improvised oil recovery device as claimed in claim 3, wherein: the motor comprises a control cabinet, wherein a frequency conversion capacitor and an energy storage capacitor are arranged in the control cabinet, a motor junction box is arranged on the motor, the motor junction box is electrically connected with a frequency converter through a cable, and the frequency converter is electrically connected with the energy storage capacitor.
5. The energy complementary balanced type improvised oil recovery device as claimed in claim 4, wherein: and a lubricating port is formed in the supporting and lubricating assembly, and lubricating oil put into the lubricating port lubricates the lifting screw.
6. The energy complementary balanced type improvised oil recovery device as claimed in claim 5, wherein: the energy storage capacitor is charged by the power generation equipment, and the power generation equipment is connected with the energy storage capacitor through a power generation cable.
7. The energy complementary balanced type improvised oil recovery device as defined in claim 6, wherein: the power generation equipment adopts solar power generation or wind power generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190004.6A CN111395998A (en) | 2020-03-18 | 2020-03-18 | Energy complementary balanced type simple oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190004.6A CN111395998A (en) | 2020-03-18 | 2020-03-18 | Energy complementary balanced type simple oil extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111395998A true CN111395998A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010190004.6A Pending CN111395998A (en) | 2020-03-18 | 2020-03-18 | Energy complementary balanced type simple oil extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111395998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411921A (en) * | 2020-03-30 | 2020-07-14 | 安徽物迅科技有限公司 | Energy storage type screw lifting linear oil production mechanism |
| CN114718528A (en) * | 2022-04-10 | 2022-07-08 | 大庆岩玉丰达石油科技有限公司 | Carbon-free lifting oil storage intelligent oil extraction and monitoring system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011120512A2 (en) * | 2010-04-01 | 2011-10-06 | Netzsch Mohnopumpen Gmbh | Method for removing an eccentric worm gear drive of a crude oil delivery pump and crude oil delivery pump |
| CN105298449A (en) * | 2015-12-02 | 2016-02-03 | 西南石油大学 | Novel screw-type oil pumping machine |
| CN106089157A (en) * | 2016-08-23 | 2016-11-09 | 山东威马泵业股份有限公司 | Accumulation of energy balance type hydraulic pumping unit |
| CN110863804A (en) * | 2019-12-02 | 2020-03-06 | 安徽物迅科技有限公司 | Oil extraction equipment |
-
2020
- 2020-03-18 CN CN202010190004.6A patent/CN111395998A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011120512A2 (en) * | 2010-04-01 | 2011-10-06 | Netzsch Mohnopumpen Gmbh | Method for removing an eccentric worm gear drive of a crude oil delivery pump and crude oil delivery pump |
| CN105298449A (en) * | 2015-12-02 | 2016-02-03 | 西南石油大学 | Novel screw-type oil pumping machine |
| CN106089157A (en) * | 2016-08-23 | 2016-11-09 | 山东威马泵业股份有限公司 | Accumulation of energy balance type hydraulic pumping unit |
| CN110863804A (en) * | 2019-12-02 | 2020-03-06 | 安徽物迅科技有限公司 | Oil extraction equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王磊: "新型传动抽油机设计与研究", 《西安石油大学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411921A (en) * | 2020-03-30 | 2020-07-14 | 安徽物迅科技有限公司 | Energy storage type screw lifting linear oil production mechanism |
| CN114718528A (en) * | 2022-04-10 | 2022-07-08 | 大庆岩玉丰达石油科技有限公司 | Carbon-free lifting oil storage intelligent oil extraction and monitoring system |
| CN114718528B (en) * | 2022-04-10 | 2024-03-15 | 大庆岩玉丰达石油科技有限公司 | Carbon-free lifting oil storage intelligent oil extraction and monitoring system |
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Application publication date: 20200710 |