CN108533226A - A kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke - Google Patents
A kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke Download PDFInfo
- Publication number
- CN108533226A CN108533226A CN201810497461.2A CN201810497461A CN108533226A CN 108533226 A CN108533226 A CN 108533226A CN 201810497461 A CN201810497461 A CN 201810497461A CN 108533226 A CN108533226 A CN 108533226A
- Authority
- CN
- China
- Prior art keywords
- plunger
- pipe
- limition orientation
- driving mechanism
- detected
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000005086 pumping Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 28
- 230000033001 locomotion Effects 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000032258 transport 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
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
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)
- Geophysics (AREA)
- Types And Forms Of Lifts (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of flexible drawing oil pumping mechanisms that can be detected in real time and control plunger effective stroke, the flexible traction piece that is connected to including driving mechanism, upper end in driving mechanism, oil pipe, the plunger pump for being connected to oil pipe lower end, the clump weight for being connected to plunger pump lower end, the controller for being connect with driving mechanism and controlling driving mechanism operation, casing, the limition orientation pipe set on the second check valve of inside pipe casing lower end, between clump weight and the second check valve for being connected to plunger pump lower end, wherein：Plunger pump includes pump barrel and plunger, pump barrel and is communicated with oil pipe；The first check valve is equipped in plunger；Flexible traction piece lower end is connect after running through oil pipe with plunger；Detection metal derby is installed inside limition orientation pipe；Upper end position inductor and lower end position inductor are equipped between casing and limition orientation pipe.The present invention is detected by the effective travel to plunger, ensures that each of which upstroke and down stroke can reach precalculated position, and then ensure that the validity and efficiency of oil pumping.
Description
Technical field
The present invention relates to the winning apparatus field of the resources such as underground oil/gas, more particularly to it is a kind of have detect and control in real time
The flexible drawing oil pumping mechanism of plunger operation stroke processed.
Background technology
Traditional rod pumping system transmits energy using the sucker rod of rigidity, passes through kowtowing machine (i.e. beam pumping unit)
Driving sucker rod pumps, and thus drives the plunger upward and downward in plunger pump, to realize oil pumping, this is mesh
Before the oil production equipment that is most widely used.But with the exhaustion of oil field resource, oil well is more and more deeper, and required sucker rod is also more next
Longer, the drawbacks of being brought with eccentric wear of conducting oneself with dignity makes cost for oil production constantly increase.For this purpose, Publication No. CN107013188A's is special
Sharp application documents provide a kind of reciprocating flexible drawing oil pumping mechanism, are taken out by flexible traction piece (such as traction rope) to replace
Beam hanger, in plunger underhung clump weight, column is driven by the dead weight of clump weight to realize that lifting plunger is moved upwards
Plug moves downward, and then realizes oil pumping purpose by this reciprocating motion.But in said structure, (such as due to flexible traction piece
Traction rope) itself there can be elasticity modulus, when traction rope payload larger (i.e. plunger moves upwards), add up elongation
It can be more than the effective travel of plunger, pre-set up haulage is made to fail, so that pumping efficiency lowly even oil pumping failure；And work as
When traction rope payload smaller (i.e. plunger moves downward), accumulative elongation can become smaller again, to make oil pumping system be difficult to
Normal work.
Invention content
The present invention provides a kind of flexible drawing oil pumping mechanisms that can be detected in real time and control plunger effective stroke, solve
It is existing in the prior art due to flexible traction piece to cause pumping efficiency low there are elasticity modulus or even oil pumping failure is asked
Topic.
To achieve the above object, present invention employs the following technical solutions：
It is a kind of can detect in real time and control plunger effective stroke flexible drawing oil pumping mechanism comprising driving mechanism, on
End is connected to the flexible traction piece, oil pipe, the plunger for being connected to oil pipe lower end that in driving mechanism and can be pumped
Pump and clump weight, wherein：The plunger pump includes pump barrel and plunger, the pump barrel and is communicated with oil pipe, is set in the plunger
There is the first check valve, and first check valve is closed when plunger moves upwards, and is opened when plunger moves downward, it is described to match
Pouring weight is connected to plunger pump lower end；The lower end of the flexible traction piece is connect after running through oil pipe with upper end,
It further includes：
The controller of driving mechanism operation is connect and controlled with driving mechanism；
The casing for being connected to pump barrel lower end and being communicated with pump barrel is also equipped with the limit being coaxially arranged inside described sleeve pipe
Position guide pipe and be annular the first fixed frame and the second fixed frame, and the limition orientation pipe, the first fixed frame and the
Two fixed frames are respectively positioned below clump weight, and the first fixed frame is located at the second fixed frame top, and the limition orientation pipe is connected to the
Between the centre bore of one fixed frame and the centre bore of the second fixed frame, and formed between internal surface of sleeve pipe and limition orientation pipe outer wall
The space of connection；
The second check valve mounted on inside pipe casing lower end and below limition orientation pipe, and second check valve exists
It opens when plunger moves upwards and is closed when plunger moves downward；
Detection metal derby by connector below clump weight and in the limition orientation pipe and it is separately mounted to institute
State the upper end position inductor and lower end position inductor in casing, upper end position inductor be located at the top of lower end inductor and
It is electrically connected with the controller, upper end position inductor and lower end position inductor are used for the position to detection metal derby in limition orientation pipe
It sets and is detected and testing result is sent to controller.
The principle of the present invention is：By upper end position inductor and lower end position inductor to detection metal derby in limition orientation pipe
Interior position is detected, and realizes the detection to plunger effective stroke indirectly, i.e., when driving mechanism is driven by flexible traction piece
When dynamic plunger is run up to upper end precalculated position, detection metal derby also moves at the inductor of upper end position so that upper end position
Inductor generates inductive signal and is simultaneously transferred to controller, and controller controls driving mechanism reversion again, flexible traction piece in plunger and
It is run down under clump weight effect until lower end precalculated position, detects metal derby and also move at the inductor of lower end position, make at this time
It obtains lower end position inductor to generate inductive signal and be transmitted to controller, controller controls driving mechanism driving plunger and transports upwards again
Dynamic, oil pumping can be realized in and so on movement.
Compared with the prior art, the present invention has following functional characteristics：By the position detection to metal detection block, ensure
The each upstroke of plunger and down stroke can reach precalculated position, and then ensure the validity and efficiency of oil pumping.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the distribution schematic diagram of upper end position inductor and lower end position inductor in the present invention.
In figure：1- controllers, 2- motors, 3- rollers, 4- cross rope head sheave, 5- supporting racks, 6- traction ropes, 7- oil pipes, 8- pumps
Cylinder, 9- plungers, 10,11- travelling valves, 12- casings, 13- clump weights, the first fixed frames of 14-, 15- limition orientation pipes, on 16-
End position inductor, the lower ends 17- position inductor, 18- connectors, 19- detection metal derbies, the second fixed frames of 20-, 21- standing valves,
22- standing valve seats, 23,24- signal wires.
Specific implementation mode
The technical solution in the present invention is further illustrated with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention proposes a kind of flexible drawing oil pumping that can be detected in real time and control plunger effective stroke
Mechanism comprising driving mechanism, upper end are connected to flexible traction piece, the oil pipe that in driving mechanism and can be pumped
7, be connected to the plunger pump of 7 lower end of oil pipe, clump weight 13, the controller 1 for being connect with driving mechanism and controlling driving mechanism operation,
Be connected to the casing 12 of plunger pump lower end, mounted on the second check valve of 12 interior lower end of casing, for detecting 9 stroke of plunger
Stroke detection mechanism, the supporting rack 5 above oil well and the rope head sheave 4 excessively mounted on 5 top of supporting rack, wherein：
The driving mechanism includes motor 2 and is connected to the roller 3 of 2 output shaft of motor, the transmission by transmission mechanism
Belt gear can be used in mechanism, with realize by motor 2 rotates drive roller 3 rotate；
The flexible traction piece is traction rope 6, and the upper end of the traction rope 6 bypassed after rope head sheave 4 wound on roller 3
On, 5 side of supporting rack can be mounted on by motor 2 and roller 3 in turn for changing the direction of motion of traction rope 6 by crossing head sheave 4 of restricting, can
It avoids being arranged excessively high by supporting rack 5 and brings that such as cost is excessively high, inconvenient the problems such as safeguarding；Pass through 2 positive and negative rotations of motor, that is, band
Dynamic roller 3 synchronizes positive and negative rotation, and then driving plunger 9 to move upwards or unclamp traction rope 6 by traction rope 6 makes it in clump weight 13
It is moved downward under gravity；
The plunger pump includes pump barrel 8 and plunger 9,8 upper end of the pump barrel be sealingly coaxially socketed in oil pipe 7 and with
Oil pipe 7 communicates, and the plunger 9 is internally provided with two group of first check valve；Two groups of travellings preferably can be used in first check valve
Valve 10 (11) is closed when plunger 9 moves upwards, and is opened when plunger 9 moves downward；The lower end of the traction rope 6
It is connect with 9 upper end of plunger after oil pipe 7；
The clump weight 13 is suspended on the lower end of plunger pump by being flexibly connected rope or rigid connecting rod；
Described sleeve pipe 12 is sealed to be coaxially attached to 8 lower end of pump barrel and is communicated with pump barrel 8, is also pacified inside described sleeve pipe 12
Equipped with the limition orientation pipe 15 being coaxially arranged and be annular the first fixed frame 14 and the second fixed frame 20, the limit
Position guide pipe 15, the first fixed frame 14 and the second fixed frame 20 are respectively positioned on the lower section of clump weight 13, and the first fixed frame 14 is located at the
Above two fixed frame 20 and its outer ring is fixedly connected with 12 inner wall sealing formula of casing respectively, 15 sealed company of the limition orientation pipe
It is connected between the centre bore of the first fixed frame 14 and the centre bore of the second fixed frame 20, and then in 12 inner wall of casing and limition orientation
The connected space of annular is formed between 15 outer wall of pipe；
Second check valve is located at the lower section of limition orientation pipe 15, and second check valve is preferably by passing through fixation
Valve seat 22 is fixed on the standing valve 21 inside casing 12, and standing valve 21 is opened when plunger 9 moves upwards and in column
Plug 9 is closed when moving downward, and for controlling crude oil, uniaxially sleeve pipe 12 is interior and it is prevented to be flowed out again from lower end；
The stroke detection mechanism includes being suspended on 13 lower section of clump weight by connector 18 and being located on standing valve 21
The detection metal derby 19 of side and the upper end position inductor 16 and lower end position inductor 17 for being separately mounted to 12 inner wall of casing, it is shown
Flexible connection rope or rigid connecting rod can be used in connector 18, and the detection metal derby 19 is located in limition orientation pipe 15 and its ruler
The very little internal diameter less than limition orientation pipe 15 so that detection metal derby 19 can be in limition orientation pipe 15 with plunger 9 and clump weight 13
It synchronously moves up or down, and fluid can flow to the top of the first fixed frame 14, the limit by limition orientation pipe 15
Guide pipe 15 can also be limited and be oriented to moving up and down for metal derby 19 of detection, to avoid it is glanced off and is influenced pair
Effective detection of 9 stroke of plunger；When the size for detecting metal derby 19 is larger, can also be opened in 15 side wall of limition orientation pipe
If multiple through-holes, in order to reduce detection metal derby 19 resistance suffered in limition orientation 15 internal motion of pipe；
The upper end position inductor 16 and lower end position inductor 17 are located in the connected space, upper end position sense
Answer device 16 be located at lower end position inductor 17 top and its connect respectively with controller 1 by signal wire 23 (24), for right
Position of the metal derby 19 in casing 12 is detected to be detected and testing result is sent to controller 1；As shown in Fig. 2, and institute
Upper end position inductor 16 and lower end position inductor 17 respectively three and being radially circularly and evenly distributed in casing 12 are stated, by
, when wherein some inductor fails, other inductors remain to work normally for this, ensure the accuracy of testing result with this and have
Effect property.
The course of work of the present invention is：Upstroke --- controller 1, which controls motor 2 and rotates forward and roller 3 is driven to synchronize, to be turned
Dynamic, and then traction rope 6 is driven to move upwards, traction rope 6 can be elongated because of elasticity modulus at this time, and cause 9 displacement of plunger compared with
Small, then motor 2 can then rotate forward always, until plunger 9, clump weight 13 and detection metal derby 19 are carried by traction rope 6 upwards
It draws and generates effectively movement, in the process, two travelling valves 10 (11) are in off state, then all in plunger 9 and fixation
Negative pressure is formed between that 21, and then standing valve 21 is washed open and is inhaled into limition orientation pipe 15 and casing 12 by the crude oil of bottom
It is interior；Down stroke --- when detection metal derby 19 is moved to all the way up at the inductor 16 of upper end position, controller 1 controls motor 2
It rotating backward and puts down traction rope 6, plunger 9 moves down under the effect of clump weight 13, in the process, plunger 9 and fixation
Reduced space between valve 21 and cause pressure to increase, cause travelling valve 10 (11) to open and standing valve 21 is closed, then
Crude oil between plunger 9 and standing valve 21 flows upwardly into oil pipe 7；When detection metal derby 19 reaches at the inductor 17 of lower end position
When, controller 1 controls motor 2 and rotates forward again, and repeats above-mentioned upstroke process, you can crude oil is drawn to by realization
Earth's surface.
Claims (4)
1. a kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke comprising driving mechanism, upper end
It is connected to the flexible traction piece that in driving mechanism and can be pumped, oil pipe (7), is connected to oil pipe (7) lower end
Plunger pump and clump weight (13) are equipped with first wherein the plunger pump includes pump barrel (8) and plunger (9) in the plunger (9)
Check valve, and first check valve is closed when plunger (9) moves upwards, and is opened when plunger (9) moves downward；Clump weight
(13) it is connected to the lower end of plunger (9)；The lower end of the flexible traction piece is connect with plunger (9) upper end afterwards through oil pipe (7),
It is characterized in that, further includes：
The controller (1) of driving mechanism operation is connect and controlled with driving mechanism；
The casing (12) for being connected to pump barrel (8) lower end and being communicated with pump barrel (8), described sleeve pipe (12) is internal to be also equipped with it together
The limition orientation pipe (15) of axis setting and be annular the first fixed frame (14) and the second fixed frame (20), and the limit
Guide pipe (15), the first fixed frame (14) and the second fixed frame (20) are respectively positioned below clump weight (13), the first fixed frame (14)
Above the second fixed frame (20), the limition orientation pipe (15) is connected to the centre bore of the first fixed frame (14) and second and consolidates
Between the centre bore for determining frame (20), and form between casing (12) inner wall and limition orientation pipe (15) outer wall the space of connection；
The second check valve mounted on casing (12) interior lower end and below limition orientation pipe (15), and described second is unidirectional
Valve is opened when plunger (9) moves upwards and is closed when plunger (9) moves downward；
It is suspended on the detection metal derby (19) below clump weight (13) and in limition orientation pipe (15) by connector (18)
And it is separately mounted to the upper end position inductor (16) in described sleeve pipe (12) and lower end inductor (17), and and controller
(1) it is electrically connected, upper end position inductor (16) and lower end position inductor (17) are used for detection metal derby (19) in limition orientation pipe
(15) position in is detected and testing result is sent to controller (1).
2. a kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke as described in claim 1,
It is characterized in that：The flexible traction piece is traction rope (6), and the driving mechanism includes motor (2) and connected by transmission mechanism
It is connected on the roller (3) of motor (2) output shaft, traction rope (6) upper end is on roller (3).
3. a kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke as claimed in claim 2,
It is characterized in that：Further include supporting rack (5) and crosses rope head sheave (4), the upper end of traction rope (6) mounted on supporting rack (5) top
Around crossing after rope head sheave (4) on roller (3).
4. a kind of flexible drawing oil pumping mechanism that can be detected in real time and control plunger effective stroke as described in claim 1,
It is characterized in that：Limition orientation pipe (15) side wall is equipped with several through-holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497461.2A CN108533226B (en) | 2018-05-22 | 2018-05-22 | Flexible traction oil pumping mechanism capable of detecting and controlling effective stroke of plunger in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497461.2A CN108533226B (en) | 2018-05-22 | 2018-05-22 | Flexible traction oil pumping mechanism capable of detecting and controlling effective stroke of plunger in real time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108533226A true CN108533226A (en) | 2018-09-14 |
| CN108533226B CN108533226B (en) | 2020-03-27 |
Family
ID=63471709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810497461.2A Active CN108533226B (en) | 2018-05-22 | 2018-05-22 | Flexible traction oil pumping mechanism capable of detecting and controlling effective stroke of plunger in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108533226B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880062A (en) * | 1987-07-20 | 1989-11-14 | Murphy Oil Company Limited | Oil well downhole liquid injection assembly |
| CN104533351A (en) * | 2014-12-15 | 2015-04-22 | 孙硕成 | Multifunctional swabbing and bailing lift device suitable for dynamic and intelligent production management |
| EP3034775A1 (en) * | 2014-12-18 | 2016-06-22 | Shell Internationale Research Maatschappij B.V. | Valve device for use in a wellbore |
| US20160273528A1 (en) * | 2015-03-20 | 2016-09-22 | Baker Hughes Incorporated | Systems and Methods for Controlling Downhole Linear Motors |
| CN106837252A (en) * | 2017-02-13 | 2017-06-13 | 重庆排绳利科技有限公司 | One kind is without the reciprocating flexible drawing oil pumping mechanism of bar |
| CN107013188A (en) * | 2017-05-16 | 2017-08-04 | 重庆排绳利科技有限公司 | A kind of reciprocating flexible drawing oil pumping mechanism |
| CN206737890U (en) * | 2017-04-22 | 2017-12-12 | 中国石油大学(华东) | Adaptive equalization intelligence reversing pumping unit |
-
2018
- 2018-05-22 CN CN201810497461.2A patent/CN108533226B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880062A (en) * | 1987-07-20 | 1989-11-14 | Murphy Oil Company Limited | Oil well downhole liquid injection assembly |
| CN104533351A (en) * | 2014-12-15 | 2015-04-22 | 孙硕成 | Multifunctional swabbing and bailing lift device suitable for dynamic and intelligent production management |
| EP3034775A1 (en) * | 2014-12-18 | 2016-06-22 | Shell Internationale Research Maatschappij B.V. | Valve device for use in a wellbore |
| US20160273528A1 (en) * | 2015-03-20 | 2016-09-22 | Baker Hughes Incorporated | Systems and Methods for Controlling Downhole Linear Motors |
| CN106837252A (en) * | 2017-02-13 | 2017-06-13 | 重庆排绳利科技有限公司 | One kind is without the reciprocating flexible drawing oil pumping mechanism of bar |
| CN206737890U (en) * | 2017-04-22 | 2017-12-12 | 中国石油大学(华东) | Adaptive equalization intelligence reversing pumping unit |
| CN107013188A (en) * | 2017-05-16 | 2017-08-04 | 重庆排绳利科技有限公司 | A kind of reciprocating flexible drawing oil pumping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108533226B (en) | 2020-03-27 |
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Effective date of registration: 20220106 Address after: 274009 Tangzhuang village, Mudan office, Mudan District, Heze City, Shandong Province (entrance of Ridong Expressway) Patentee after: SHANDONG LIXIN PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Address before: 400000 floor 6, gaochuangjinye building, No. 18, Yuzhou Road, Jiulongpo District, Chongqing Patentee before: CHONGQING LANFEI TECHNOLOGY Co.,Ltd. |