CN108533225B - Pumping unit with bag - Google Patents
Pumping unit with bag Download PDFInfo
- Publication number
- CN108533225B CN108533225B CN201810493068.6A CN201810493068A CN108533225B CN 108533225 B CN108533225 B CN 108533225B CN 201810493068 A CN201810493068 A CN 201810493068A CN 108533225 B CN108533225 B CN 108533225B
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- China
- Prior art keywords
- flat belt
- shaft
- wheel
- positioning anchor
- belt
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- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000004873 anchoring Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000003129 oil well Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 26
- 238000009434 installation Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000003090 exacerbative effect Effects 0.000 description 1
- 238000011084 recovery Methods 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
- E21B43/121—Lifting well fluids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the field of oil extraction equipment in an oil field, and particularly relates to a bag-type pumping unit which comprises a driving wheel, a driven wheel, a flat belt, a positioning anchor seat and an oil pool, wherein the positioning anchor seat is arranged under a well of an oil extraction well, the top of the positioning anchor seat is provided with a guide wheel, the flat belt penetrates through the lower side of the guide wheel and then is connected end to form a closed annular structure, the flat belt is wound on end of the driving wheel and the driven wheel, the driving wheel provides power for the operation of the flat belt, the driven wheel aligns the flat belt with a wellhead of the oil extraction well, one side of the flat belt is densely provided with a cloth bag with an opening oriented in the same direction, the opening oriented of the cloth bag is in the same direction as the length of the flat belt, and the oil pool is positioned right below the driving wheel and the driven wheel. The invention has the advantages of simple structure, low manufacturing cost, convenient maintenance and labor-saving operation, and thus has excellent economic benefit. The invention is very suitable for the production of thick oil, and compared with a beam pumping unit, the oil extraction efficiency is greatly improved.
Description
Technical Field
The invention belongs to the field of oil extraction equipment in an oil field, and particularly relates to a pumping unit with a bag.
Background
In oil extraction engineering, a pumping unit is a basic equipment whose function is to convey downhole fluids to the surface. Most of the existing pumping units are beam pumping units, but the beam pumping units are complex in structure, high in manufacturing cost, high in failure rate and laborious to maintain.
In addition, for thick oil, the viscosity of crude oil is high, the fluidity is poor, the flow resistance is high, the filling coefficient of an oil pump is low, and the pump efficiency is low, so that the production efficiency of thick oil produced by adopting a beam pumping unit is low.
Disclosure of Invention
The invention provides a pumping unit with a bag, which aims to solve the problems in the prior art.
The technical problems solved by the invention are realized by adopting the following technical scheme:
the invention comprises a driving wheel, a driven wheel, a flat belt, a positioning anchor seat and an oil pool, wherein the positioning anchor seat is arranged under a well of an oil production well, the top of the positioning anchor seat is provided with a guide wheel, the flat belt penetrates through the lower side of the guide wheel and is connected end to form a closed annular structure, the flat belt is wound on the driving wheel and the driven wheel, the driving wheel provides power for the flat belt to run, the driven wheel enables the flat belt to be aligned with a well head of the oil production well, one side of the flat belt is densely provided with a cloth bag with a consistent opening orientation, the opening orientation of the cloth bag is consistent with the length direction of the flat belt, and the oil pool is positioned right below the driving wheel and the driven wheel;
the utility model provides a location anchor seat's structure include installation body, adapter, lower installation body, A axle, B axle, lead screw, slide bar, voussoir and anchor block, go up through pin connection between installation body and the adapter, pass through threaded connection between adapter and the lower installation body, A axle and B axle all install on the installation body, the axis direction of A axle and B axle is along the horizontal direction, guide pulley fixed mounting on A axle, realize power connection through belt drive mechanism between A axle and the B axle, wherein, pulley on the A axle is connected through one-way bearing between the A axle, the axis of lead screw along vertical direction, the upper end of lead screw pass through a pair of bevel gear with the B axle realize power connection, slide bar, voussoir and anchor block all install down in the installation body, the slide bar pass through the screw with screw connection, wedge and anchor block are installed in pairs in the transverse mounting downthehole of installation body down, the installation body outside be provided with the layering that is arranged in preventing anchor block from falling out in the transverse mounting downthehole, the layering passes through fixed mounting and installs down between the anchor block and the anchor block, the anchor block is provided with under the slope and the slope when the anchor block is arranged in the slope is arranged under the side of the slope, the slide bar is arranged under the slope, the slope is realized to the side of the slope when the anchor rod is under the slope of the anchor body to the slope.
The flat belt is provided with strip-shaped protrusions with anti-skid function on one side contacted with the driving wheel, the driven wheel and the guide wheel. The outside of the belt transmission mechanism is provided with a shield.
The beneficial effects of the invention are as follows:
1. the invention has the advantages of simple structure, low manufacturing cost, convenient maintenance and labor-saving operation, and thus has excellent economic benefit.
2. The invention is very suitable for the production of thick oil, and compared with a beam pumping unit, the oil extraction efficiency is greatly improved.
3. The beam pumping unit has a smaller capacity adjustment range, resulting in lower comprehensive oil extraction efficiency. In the invention, the oil extraction capacity of the invention can be adjusted in a large range by adjusting the rotation speed of the driving wheel, so that the invention can be suitable for high-yield wells and low-yield wells, thereby greatly improving the comprehensive oil extraction efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of a flat belt;
FIG. 3 is a schematic cross-sectional view of a positioning anchor;
fig. 4 is a schematic view of the external structure of the anchor.
In the figure: the device comprises a positioning anchor seat, a flat belt, a 3-driven wheel, a 4-driving wheel, a 5-oil pool, a 6-lower mounting body, a 7-anchor block, a 8-spring, a 9-wedge block, a 10-layering, a 11-adapter, a 12-pin, a 13-upper mounting body, a 14-guide wheel, a 15-fishing head, a 16-belt pulley, a 17-A shaft, a 18-one-way bearing, a 19-B shaft, a 20-lead screw, a 21-slide bar, a 22-strip-shaped protrusion, a 23-cloth bag, a 24-sleeve and a 25-shield.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the invention comprises a driving wheel 4, a driven wheel 3, a flat belt 2, a positioning anchor 1 and an oil pool 5, wherein the driving wheel 4 is used for providing power for the operation of the flat belt 2, the driven wheel 3 is used for aligning the flat belt 2 with a wellhead of an oil production well, the flat belt 2 is used for continuously conveying underground liquid to the ground, and the positioning anchor 1 is used for providing a turning point for the flat belt 2, so that the flat belt 2 continuously works without interruption. The purpose of the oil sump 5 is to collect the produced fluid that is transported to the surface.
The positioning anchor seat 1 is arranged under a well of a production well, the top of the positioning anchor seat 1 is provided with a guide wheel 14, the flat belt 2 passes through the lower side of the guide wheel 14 and is connected end to form a closed annular structure, the flat belt 2 is wound on the driving wheel 4 and the driven wheel 3, cloth bags 23 with consistent opening orientations are densely distributed on one side of the flat belt 2, the opening orientations of the cloth bags 23 are consistent with the length direction of the flat belt 2, and the oil pool 5 is positioned under the driving wheel 4 and the driven wheel 3. During operation, the driving wheel 4 is driven by a motor or other power source to rotate so as to drive the flat belt 2 to run forward, and in the process, the cloth bag 23 on the flat belt 2 continuously conveys the underground liquid to the ground and falls into the oil pool 5.
The structure of the positioning anchor seat 1 comprises an upper mounting body 13, an adapter 11, a lower mounting body 6, an A shaft 17, a B shaft 19, a screw rod 20, a slide bar 21, a wedge block 9 and an anchor block 7, wherein the upper mounting body 13 is connected with the adapter 11 through a pin 12, the adapter 11 is connected with the lower mounting body 6 through threads, the A shaft 17 and the B shaft 19 are both arranged on the upper mounting body 13, the axial directions of the A shaft 17 and the B shaft 19 are along the horizontal direction, a guide wheel 14 is fixedly arranged on the A shaft 17, the A shaft 17 and the B shaft 19 are in power connection through a belt transmission mechanism, a belt pulley 16 on the A shaft 17 is connected with the A shaft 17 through a one-way bearing 18, the axial direction of the screw rod 20 is along the vertical direction, the upper end of the screw rod 20 is in power connection with the B shaft 19 through a pair of bevel gears, the slide bar 21, the wedge block 9 and the anchor block 7 are all installed in the lower installation body 6, the slide bar 21 is connected with the screw rod 20 through threads, the wedge block 9 and the anchor block 7 are installed in pairs in transverse installation holes on the lower installation body 6, a pressing strip 10 for preventing the anchor block 7 from falling out of the transverse installation holes is arranged on the outer side of the lower installation body 6, the pressing strip 10 is fixedly installed on the lower installation body 6 through screws, a spring 8 is arranged between the wedge block 9 and the anchor block 7, inclined planes matched with each other are arranged on the slide bar 21 and the wedge block 9, when the slide bar 21 moves downwards under the driving of the screw rod 20, the wedge block 9 moves transversely under the action of the inclined planes, so that the anchor block 7 is pushed to expand outwards, the anchor of the positioning anchor seat 1 in the sleeve 24 is realized, and the fishing head 15 is arranged at the top of the upper installation body 13.
The positioning of the anchor 1 is important in the design process of the present invention. After the anchor 1 has been lowered into the well, it must be anchored reliably to the inner wall of the sleeve 24, in particular not rotated, and once the anchor 1 is rotated, the band 2 is twisted, thus exacerbating wear of the band 2 and even making the band 2 difficult to operate. In the invention, the slide rod 21 driven by the screw rod 20 can provide larger anchoring force for the anchor block 7, so that the anchoring reliability of the positioning anchor seat 1 is ensured.
The invention arranges a one-way bearing 18 in the positioning anchor seat 1, wherein the one-way bearing 18 is a bearing which can freely rotate in one direction and is locked in the other direction. So that the positioning anchor 1 can be smoothly, quickly and conveniently set. Specifically, when the guide wheel 14 rotates reversely, the one-way bearing 18 is in the locking direction, so that the power of the guide wheel 14 can be transmitted to provide power for anchoring the anchor block 7, and when the guide wheel 14 rotates positively, the one-way bearing 18 is in the free rotation direction, at this time, the power transmission between the A shaft 17 and the belt pulley 16 on the A shaft is cut off, so that the anchoring effect of the anchor block 7 is ensured not to be released when the flat belt 2 rotates positively.
When the positioning anchor 1 is installed, the positioning anchor 1 is firstly lowered into a well, the flat belt 2 is led into the well and straightened under the traction of the gravity of the positioning anchor 1, after the positioning anchor 1 is lowered to a preset position, the flat belt 2 is reversely operated by a manual mode, the guide wheel 14 is reversely rotated under the driving of the flat belt 2, at the moment, the belt pulley 16 on the A shaft 17 rotates along with the A shaft under the action of the unidirectional bearing 18, the power of the A shaft is converted into the rotary motion of the lead screw 20 through the belt transmission mechanism and the gear transmission mechanism, the slide rod 21 moves downwards under the driving action of the lead screw 20, and then the wedge block 9 and the anchor block 7 are pushed, so that the positioning anchor 1 is fixed on the inner wall of the sleeve 24. After the positioning anchor seat 1 is installed, the driving wheel 4 is rotated forward, the flat belt 2 is driven to rotate forward, when the flat belt 2 rotates forward, the guide wheel 14 and the A shaft 17 rotate forward together with the flat belt 2, at the moment, the power transmission between the A shaft 17 and the belt pulley 16 on the A shaft is cut off, and therefore the anchoring effect of the anchor block 7 is ensured not to be relieved when the flat belt 2 rotates forward.
When the positioning anchor seat 1 needs to be lifted, the flat belt 2 is lifted, the upper mounting body 13 shears the pin 12 and moves upwards under the traction of the flat belt 2, at the moment, the anchoring action of the anchor block 7 is released, and the positioning anchor seat 1 can be lifted smoothly. Under special conditions such as breaking and releasing of the flat belt 2, the fishing head 15 can be clamped by a conventional fishing tool, so that the positioning anchor seat 1 can be lifted smoothly.
The flat belt 2 is provided with a strip-shaped protrusion 22 with an anti-skid function on one side contacted with the driving wheel 4, the driven wheel 3 and the guide wheel 14, and correspondingly, the outer sides of the driving wheel 4, the driven wheel 3 and the guide wheel 14 are also provided with strip-shaped grooves matched with the strip-shaped protrusion 22.
The outside of belt drive mechanism be provided with guard shield 25, can effectively prevent belt drive mechanism damage.
In the implementation process, the belt transmission mechanism can be replaced by other transmission modes such as a chain transmission mechanism and the like.
Compared with the existing beam pumping unit, the invention has the following advantages:
1. in the beam pumping unit, the power device needs to overcome the running resistance of the transmission mechanism, the gravity of the sucker rod and the pump core and the gravity of the underground liquid, so the power requirement on the power device is higher, and in the working process of the invention, the power device of the pumping unit only needs to provide lifting force for the underground liquid and provide power for the running of the flat belt, and compared with the prior art, the power required by the invention is greatly reduced, so the invention has excellent energy-saving effect.
2. The invention has the advantages of extremely simple structure, extremely low manufacturing cost, convenient maintenance and labor-saving operation, thus having extremely good economic benefit.
3. The productivity of the present invention can be kept constant regardless of the viscosity of the downhole fluid, as long as the rotational speed of the driving wheel 4 is not convenient, so that the present invention is very suitable for the production of thick oil and can ensure higher oil recovery efficiency.
3. The beam pumping unit has a smaller capacity adjustment range, resulting in lower comprehensive oil extraction efficiency. In the invention, the oil extraction capacity of the invention can be adjusted in a large range by adjusting the rotation speed of the driving wheel, so that the invention can be suitable for high-yield wells and low-yield wells, thereby greatly improving the comprehensive oil extraction efficiency.
Claims (1)
1. The utility model provides a take bag formula beam-pumping unit which characterized in that: the oil well is characterized by comprising a driving wheel (4), a driven wheel (3), a flat belt (2), a positioning anchor seat (1) and an oil pool (5), wherein the positioning anchor seat (1) is installed under a well of an oil production well, a guide wheel (14) is arranged at the top of the positioning anchor seat (1), the flat belt (2) penetrates through the lower side of the guide wheel (14) and then is connected end to form a closed annular structure, the flat belt (2) is wound on the driving wheel (4) and the driven wheel (3), the driving wheel (4) provides power for the operation of the flat belt (2), the driven wheel (3) enables the flat belt (2) to be aligned with a well head of the oil production well, a cloth bag (23) with an opening facing the same direction is densely distributed on one side of the flat belt (2), the opening of the cloth bag (23) faces the length direction of the flat belt (2), and the oil pool (5) is positioned under the driving wheel (4) and the driven wheel (3).
The structure of the positioning anchor seat (1) comprises an upper mounting body (13), an adapter (11), a lower mounting body (6), an A shaft (17), a B shaft (19), a screw rod (20), a sliding rod (21), a wedge block (9) and an anchor block (7), wherein the upper mounting body (13) is connected with the adapter (11) through a pin (12), the adapter (11) is connected with the lower mounting body (6) through threads, the A shaft (17) and the B shaft (19) are both mounted on the upper mounting body (13), the axial directions of the A shaft (17) and the B shaft (19) are in the horizontal direction, a guide wheel (14) is fixedly mounted on the A shaft (17), the A shaft (17) and the B shaft (19) are in power connection through a belt transmission mechanism, a belt pulley (16) on the A shaft (17) is connected with the A shaft (17) through a one-way bearing (18), the upper end of the screw rod (20) is in the vertical direction, the upper end of the screw rod (20) is connected with the B shaft (19) through a pair of bevel gears and the anchor block (21) is in the sliding rod (20), the wedge block (9) and the anchor block (7) are arranged in pairs in transverse mounting holes on the lower mounting body (6), a pressing strip (10) for preventing the anchor block (7) from falling out of the transverse mounting holes is arranged on the outer side of the lower mounting body (6), the pressing strip (10) is fixedly arranged on the lower mounting body (6) through a screw, a spring (8) is arranged between the wedge block (9) and the anchor block (7), inclined planes which are matched with each other are arranged on the slide bar (21) and the wedge block (9), when the slide bar (21) moves downwards under the driving of the screw rod (20), the wedge block (9) moves transversely under the action of the inclined planes, so that the anchor block (7) is pushed to expand outwards, the anchor of the anchor block (1) in the sleeve (24) is positioned, and a fishing head (15) is arranged at the top of the upper mounting body (13);
when the positioning anchor seat (1) is installed, firstly, the positioning anchor seat (1) is lowered into a well, the flat belt (2) is led into the well and straightened under the traction of the gravity of the positioning anchor seat (1), after the positioning anchor seat (1) is lowered to a preset position, the flat belt (2) is reversely operated in a manual mode, the guide wheel (14) is reversely rotated under the drive of the flat belt (2), at the moment, the belt pulley (16) on the A shaft (17) rotates along with the A shaft (17) under the action of the one-way bearing (18), the power of the A shaft (17) is converted into the rotary motion of the screw rod (20) through the belt transmission mechanism and the gear transmission mechanism, and the slide rod (21) is downwardly moved under the drive of the screw rod (20), so as to push the wedge block (9) and the anchor block (7), and the positioning anchor seat (1) is fixed on the inner wall of the sleeve (24); after the positioning anchor seat (1) is installed, the driving wheel (4) is rotated forward, the flat belt (2) is driven to rotate forward, when the flat belt (2) rotates forward, the guide wheel (14) and the A shaft (17) rotate forward along with the flat belt (2), at the moment, the power transmission between the A shaft (17) and the belt wheel (16) on the A shaft (17) is cut off, so that the anchoring effect of the anchor block (7) cannot be relieved when the flat belt (2) rotates forward;
when the positioning anchor seat (1) is lifted, the flat belt (2) is lifted, the upper mounting body (13) shears the pin (12) and moves upwards under the traction of the flat belt (2), and at the moment, the anchoring action of the anchor block (7) is released, so that the positioning anchor seat (1) can be lifted smoothly;
the oil extraction capacity of the bag-type pumping unit can be adjusted by adjusting the rotating speed of the driving wheel (4);
the side of the flat belt (2) contacted with the driving wheel (4), the driven wheel (3) and the guide wheel (14) is provided with a strip-shaped bulge (22) with an anti-skid function;
a protective cover (25) is arranged on the outer side of the belt transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493068.6A CN108533225B (en) | 2018-05-22 | 2018-05-22 | Pumping unit with bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493068.6A CN108533225B (en) | 2018-05-22 | 2018-05-22 | Pumping unit with bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533225A CN108533225A (en) | 2018-09-14 |
| CN108533225B true CN108533225B (en) | 2023-11-28 |
Family
ID=63471681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810493068.6A Active CN108533225B (en) | 2018-05-22 | 2018-05-22 | Pumping unit with bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533225B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159230A (en) * | 2019-05-16 | 2019-08-23 | 大庆天工开物能源科技有限公司 | A kind of producing well catena pocket formula rotation bailing production device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1299018C (en) * | 1986-12-23 | 1992-04-21 | Dennis A. Pauls | Beamless pumping unit |
| CN102943649A (en) * | 2011-08-16 | 2013-02-27 | 王毅 | Non-beam mechanical reversing long-stroke pumping unit |
| CN104329061A (en) * | 2014-11-14 | 2015-02-04 | 大庆丹诺石油科技开发有限公司 | Walking-beam-free type intelligent oil pumping unit |
| CN104675354A (en) * | 2013-11-26 | 2015-06-03 | Pcm技术公司 | Torque anchor for blocking the rotation of a production string of a well |
| CN206246095U (en) * | 2016-12-14 | 2017-06-13 | 大庆丹诺石油科技开发有限公司 | The blue elephant that a kind of use decelerating through motor unit drives is put |
| CN208236392U (en) * | 2018-05-22 | 2018-12-14 | 大庆东达节能技术开发服务有限公司 | Band pocket type pumping unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10094368B2 (en) * | 2011-07-13 | 2018-10-09 | International Business Alliance Management, Inc. | Tower drive pumping unit |
-
2018
- 2018-05-22 CN CN201810493068.6A patent/CN108533225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1299018C (en) * | 1986-12-23 | 1992-04-21 | Dennis A. Pauls | Beamless pumping unit |
| CN102943649A (en) * | 2011-08-16 | 2013-02-27 | 王毅 | Non-beam mechanical reversing long-stroke pumping unit |
| CN104675354A (en) * | 2013-11-26 | 2015-06-03 | Pcm技术公司 | Torque anchor for blocking the rotation of a production string of a well |
| CN104329061A (en) * | 2014-11-14 | 2015-02-04 | 大庆丹诺石油科技开发有限公司 | Walking-beam-free type intelligent oil pumping unit |
| CN206246095U (en) * | 2016-12-14 | 2017-06-13 | 大庆丹诺石油科技开发有限公司 | The blue elephant that a kind of use decelerating through motor unit drives is put |
| CN208236392U (en) * | 2018-05-22 | 2018-12-14 | 大庆东达节能技术开发服务有限公司 | Band pocket type pumping unit |
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| Publication number | Publication date |
|---|---|
| CN108533225A (en) | 2018-09-14 |
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