CN106767617A - Beam pumping unit polished rod displacement transducer and method based on acceleration analysis - Google Patents
Beam pumping unit polished rod displacement transducer and method based on acceleration analysis Download PDFInfo
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- CN106767617A CN106767617A CN201611200150.2A CN201611200150A CN106767617A CN 106767617 A CN106767617 A CN 106767617A CN 201611200150 A CN201611200150 A CN 201611200150A CN 106767617 A CN106767617 A CN 106767617A
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- walking beam
- meter
- directional accelerations
- directional
- pumping unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Beam pumping unit polished rod displacement transducer and method based on acceleration analysis, the sensor includes hollow casing, it is glued respectively to and measurement direction accelerometer parallel with x and y directions respectively on shell inner bottom surface at 2 points, and is bonded in the surrounding of shell and the magnet 6 of bottom outer surface；Whole sensor is fixed on walking beam on pumping units by magnet adsorption；The accelerometer is used to measure the polished rod displacement of beam pumping unit；The invention also discloses displacement measurement method；Sensor is arranged on the appropriate location on walking beam on pumping units, and being calculated walking beam indirectly by direct measurement acceleration rotates around it the angular displacement that axle is rotated, and the structural parameters in conjunction with walking beam can be calculated the displacement of oil-extractor polish-rod.
Description
Technical field
The present invention relates to a kind of displacement transducer, and in particular to a kind of beam pumping unit polished rod based on acceleration analysis
Displacement transducer and method.
Background technology
In China's field use extensively, oil-extractor polish-rod displacement is to analyze, diagnose rod-pumped well work to beam pumping unit
The important parameter of state, measurement oil-extractor polish-rod displacement is an important component of pumpingh well daily management mission.At present,
Polished rod displacement measurement generally uses stay-supported sensor, signal to use cable transmission, and the lead of detection sensor is with polished rod motion.
This measuring method principle is simple, and precision is higher, has the disadvantage that displacement transducer is easily damaged after installing；Signal transmssion line is due to wind
Scrape, the reason such as operation easily causes winding, pulls apart.Above-mentioned factor causes stay-supported sensor to detect that field maintenance workload is larger,
In-convenience in use, it is difficult to realize long-term on-line measurement.Additionally, due to oil pumper working site no open flames, it is desirable to which sensor exists
Sensor can not be fixed using modes such as scene drillings in installation process.
The content of the invention
For the problem for overcoming above-mentioned prior art to exist, it is an object of the invention to provide a kind of based on acceleration analysis
Beam pumping unit polished rod displacement transducer, sensor is arranged on the appropriate location on walking beam on pumping units, based on acceleration analysis
Method by direct measurement acceleration be calculated indirectly walking beam rotate around it axle rotate angular displacement, in conjunction with the knot of walking beam
Structure parameter can be calculated the displacement of oil-extractor polish-rod, and the principle of the installation based on magnet adsorption of sensor fixes sensor
On walking beam and follow hard on walking beam rotation.
In order to reach object above, the present invention is adopted the following technical scheme that：
A kind of beam pumping unit polished rod displacement transducer based on acceleration analysis, including hollow casing 1, bond outside
First x directional accelerations meter 2 of the inner bottom surface of shell 1, is bonded in the inner bottom surface of the shell 1 same with the x directional accelerations meter 2
The y directional accelerations meter 3 of a bit, is bonded in the 2nd x directional accelerations meter 4 of the inner bottom surface of shell 1, with the 2nd x side
The 2nd y directional accelerations meter 5 of the inner bottom surface same point of the shell 1, and be bonded in shell 1 four are bonded in accelerometer 4
Week and the magnet 6 of bottom outer surface.
If the lower left corner with hollow casing 1 is as the origin of coordinates, the 2nd x directional accelerations meter 4 and the 2nd y directions accelerate
The x of the bonding point of degree meter 5, y-coordinate value will be respectively greater than the x directional accelerations meter 2 and a y directional accelerations meter 3
Bonding point x, y-coordinate value；The magnet 6 makes the sensor in the x of the sensor, y and z adsorbs fixation in direction respectively
On walking beam on pumping units.
The displacement measurement method of the above-mentioned beam pumping unit polished rod displacement transducer based on acceleration analysis, described first
X directional accelerations meter 2, a y directional accelerations meter 3, the 2nd x directional accelerations meter 4 and the 2nd y directional accelerations meter 5 are used for
The polished rod displacement of beam pumping unit is measured, can directly be calculated walking beam by the measurement result of above-mentioned accelerometer rotates
Angular velocity omega size and Orientation, angular velocity ω integration can obtain angular displacement, in conjunction with the knot of walking beam on pumping units itself
Structure parameter can just be calculated oil-extractor polish-rod displacement.
The beam pumping unit polished rod displacement transducer based on acceleration analysis is adsorbed by the magnet 6 and is arranged on
At rectangular trihedral angle structure on walking beam on pumping units, so-called rectangular trihedral angle structure is exactly the structure that three planes intersect vertically, typically
There is rectangular trihedral angle structure as multiple on the walking beam of beam pumping unit, they can be used to install the sensor.
The beam pumping unit polished rod displacement transducer based on acceleration analysis has certain measurable in space
Scope, if with the lower left corner of hollow casing 1 as the origin of coordinates, the x coordinate of the center of rotation of walking beam is less than described in the area requirement
The x coordinate or the x coordinate more than the 2nd x directional accelerations meter 4 of the first x directional accelerations meter 2, and the walking beam center of rotation
Y-coordinate or y-coordinate more than twoth y directional acceleration meter 4 of the y-coordinate less than a y directional accelerations meter 3, install described
To ensure that the center of rotation of the walking beam is located in the measurable region of the sensor during sensor.
Compared to the prior art, the present invention has advantages below：
(1) safeguard, it is easy to use, it is possible to achieve long-term on-line measurement.
(2) strong applicability, can be used for the beam pumping unit of different model.
(3) fixed using magnet, it is not necessary to drill, be easy to that the oil field of naked light can not produced to install.
(4) low cost, high financial profit.
(5) certainty of measurement is high.
Brief description of the drawings
Fig. 1 is beam pumping unit polished rod displacement transducer 3-D view of the present invention.
Fig. 2 is sensor measuring principle schematic diagram.
Fig. 3 is beam pumping unit operation principle schematic diagram.
Fig. 4 is beam pumping unit polished rod displacement transducer scheme of installation of the present invention.
Fig. 5 is the measurable area schematic of beam pumping unit polished rod displacement transducer of the present invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is described in further details.
As shown in figure 1, a kind of beam pumping unit polished rod displacement transducer based on acceleration analysis, including hollow casing
1, an x directional accelerations meter 2 of the inner bottom surface of shell 1 is bonded in, it is bonded in the x directional accelerations meter 2 described outer
First y directional accelerations meter 3 of the inner bottom surface same point of shell 1, is bonded in the 2nd x directional accelerations meter 4 of the inner bottom surface of shell 1, with
The 2nd x directional accelerations meter 4 is bonded in the 2nd y directional accelerations meter 5 of the inner bottom surface same point of the shell 1, and bonds
In the surrounding and the magnet 6 of bottom outer surface of shell 1.
If the lower left corner with hollow casing 1 is as the origin of coordinates, the 2nd x directional accelerations meter 4 and the 2nd y directions accelerate
The x of the bonding point of degree meter 5, y-coordinate value will be respectively greater than the x directional accelerations meter 2 and a y directional accelerations meter 3
Bonding point x, y-coordinate value；The magnet 6 makes the sensor in the x of the sensor, y and z adsorbs fixation in direction respectively
On walking beam on pumping units.
The operation principle of beam pumping unit is as shown in figure 3, walking beam 8 can be around walking beam rotary shaft 9 weeks under motor drive
Phase property ground is rotated, and the rotation of walking beam 8 pulls oil well polished rod 7 periodically to move up and down so as to reach the mesh of oil pumping by rope
's.
The first x directional accelerations meter 2, a y directional accelerations meter 3, the 2nd x directional accelerations meter 4 and the 2nd y side
It is used to measure the oil-extractor polish-rod displacement to accelerometer 5, by the x directional accelerations meter 2 and the 2nd x directions 4
Bonding point is designated as E and F respectively, and the measurement result of above-mentioned accelerometer is designated as into a respectivelyEx, aEy, aFxAnd aFy, with hollow casing 1
The lower left corner be designated as d respectively along the distance of x-axis and y-axis for origin of coordinates O, bonding point E and FxAnd dy, as shown in Fig. 2 then institute
State center of rotation O of the walking beam on pumping units around walking beam1The angular acceleration β and angular velocity omega of rotation be：
The angular acceleration β being calculated by above formula has symbol, when result of calculation represents that angular acceleration direction is for positive
Counterclockwise (right-handed coordinate system), when result of calculation is that negative indication angular acceleration direction is (right-handed coordinate system) clockwise；By above formula
The angular velocity omega being calculated is no symbol, can only represent size, and the symbol of angular speed determines (symbol by below equation
Implication is identical with angular acceleration)：
Wherein, t represents current time, and t-1 represents last moment, and Δ t represents time interval, m1Represent that a value is 0
Or 1 variable.
The light rod axis of beam pumping unit are designated as R with the distance of the sensor mount point, then beam pumping unit
Polished rod displacement be：
Wherein,Represent the corresponding initial phase of initial position of walking beam on pumping units.
The beam pumping unit polished rod displacement transducer based on acceleration analysis is adsorbed by the magnet 6 and is arranged on
At rectangular trihedral angle structure on walking beam on pumping units 8, so-called rectangular trihedral angle structure is exactly the structure that three planes intersect vertically, typically
There are rectangular trihedral angle structure as multiple, the position as shown in the dashed rectangle in Fig. 3 on the walking beam of beam pumping unit.Will figure
Installation site in 3 is amplified, and the detailed scheme of installation of the sensor can be obtained, as shown in figure 4, using dotted line side in Fig. 4
The position of collimation mark note is the rectangular trihedral angle structure for meeting mounting condition.
The beam pumping unit polished rod displacement transducer based on acceleration analysis has certain measurable in space
Scope, if with the lower left corner of hollow casing 1 as the origin of coordinates, the x coordinate of the center of rotation of walking beam is less than described in the area requirement
The x coordinate or the x coordinate more than the 2nd x directional accelerations meter 4 of the first x directional accelerations meter 2, and the walking beam center of rotation
Y-coordinate or y-coordinate more than twoth y directional acceleration meter 4 of the y-coordinate less than a y directional accelerations meter 3, install described
To ensure that the center of rotation of the walking beam is located in the measurable region of the sensor during sensor.
Above-mentioned is only specific embodiment, it should be pointed out that for those skilled in the art, not
On the premise of departing from the principle of the invention, some improvements and modifications can also be made, these improvements and modifications also should be the present invention
Protection domain.
Claims (5)
1. a kind of beam pumping unit polished rod displacement transducer based on acceleration analysis, it is characterised in that：Including hollow casing
(1) x directional accelerations meter (2) of shell (1) inner bottom surface, are bonded in, are bonded with x directional accelerations meter (2)
In y directional accelerations meter (3) of the shell (1) inner bottom surface same point, the 2nd x side of shell (1) inner bottom surface is bonded in
To accelerometer (4), with the 2nd y that the 2nd x directional accelerations meter (4) are bonded in the shell (1) inner bottom surface same point
Directional acceleration meter (5), and it is bonded in the surrounding of shell (1) and the magnet (6) of bottom outer surface.
2. a kind of beam pumping unit polished rod displacement transducer based on acceleration analysis according to claim 1, it is special
Levy and be：If the lower left corner with hollow casing (1) is as the origin of coordinates, the 2nd x directional accelerations meter (4) and the 2nd y directions
The x of the bonding point of accelerometer (5), y-coordinate value will be respectively greater than x directional accelerations meter (2) and a y directions add
X, the y-coordinate value of the bonding point of speedometer (3)；The magnet (6) makes the sensor adsorb fixation respectively in x, y and z direction
On walking beam on pumping units.
3. the displacement measurement of a kind of beam pumping unit polished rod displacement transducer based on acceleration analysis described in claim 1
Method, it is characterised in that：First x directional accelerations meter (2), y directional accelerations meter (3), the 2nd x directional accelerations
(4) and the 2nd y directional accelerations meter (5) are counted for measuring the oil-extractor polish-rod displacement, by the x directional acceleration meters
(2) and the bonding point of the 2nd x directional accelerations meter (4) is designated as E and F respectively, the measurement result of above-mentioned accelerometer is remembered respectively
It is aEx, aEy, aFxAnd aFy, as the origin of coordinates, bonding point E and F is along x-axis and the distance of y-axis for the lower left corner with hollow casing (1)
D is designated as respectivelyxAnd dy, then the angular acceleration β and angular velocity omega that the walking beam on pumping units is rotated be：
The angular acceleration β being calculated by above formula has symbol, when result of calculation represents that angular acceleration direction is the inverse time for positive
Pin, when result of calculation for negative indication angular acceleration direction is clockwise；The angular velocity omega being calculated by above formula is no symbol
, size can only be represented, the symbol of angular speed is determined that the implication of symbol is identical with angular acceleration by below equation：
Wherein, t represents current time, and t-1 represents last moment, and Δ t represents time interval, m1Represent that a value is 0 or 1
Variable；
The light rod axis of beam pumping unit are designated as R with the distance of the sensor mount point, then the light of beam pumping unit
Bar displacement is：
Wherein, φ0Represent the corresponding initial phase of initial position of walking beam on pumping units.
4. displacement measurement method according to claim 3, it is characterised in that：The beam type based on acceleration analysis is taken out
Oil machine polished rod displacement transducer is adsorbed at the rectangular trihedral angle structure on walking beam on pumping units by the magnet (6), so-called
Rectangular trihedral angle structure is exactly the structure that three planes intersect vertically, as having multiple on the walking beam of general beam pumping unit
Rectangular trihedral angle structure, they can be used to install the sensor, and turning for walking beam on pumping units should be made when installing the sensor
Shaft line is parallel with the z-axis of the sensor.
5. displacement measurement method according to claim 3, it is characterised in that：The beam type based on acceleration analysis is taken out
Oil machine polished rod displacement transducer has certain measurable range in space, if former by coordinate of the lower left corner of hollow casing (1)
Point, the x coordinate of the center of rotation of walking beam described in the area requirement is less than the x coordinate of x directional accelerations meter (2) or more than the
The x coordinate of two x directional accelerations meter (4), and the y-coordinate of the center of rotation of the walking beam is less than y directional accelerations meter (3)
Y-coordinate or the y-coordinate more than the 2nd y directional accelerations meter (4), the rotation of the walking beam is ensured when the sensor is installed
It is centrally located in the measurable region of the sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200150.2A CN106767617B (en) | 2016-12-22 | 2016-12-22 | Beam pumping unit polished rod displacement sensor and method based on acceleration analysis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611200150.2A CN106767617B (en) | 2016-12-22 | 2016-12-22 | Beam pumping unit polished rod displacement sensor and method based on acceleration analysis |
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| CN106767617A true CN106767617A (en) | 2017-05-31 |
| CN106767617B CN106767617B (en) | 2019-03-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019053513A1 (en) * | 2017-09-12 | 2019-03-21 | 4Iiii Innovations Inc. | Oil-well pump instrumentation device and surface card generation method |
| CN110086450A (en) * | 2019-04-30 | 2019-08-02 | 天津万众科技股份有限公司 | Angular displacement sensor and its data processing filtering method |
| CN111664996A (en) * | 2020-07-08 | 2020-09-15 | 福州大学 | Three-dimensional rotation quantity testing device convenient to install and testing method |
| US11319794B2 (en) | 2017-05-01 | 2022-05-03 | 4Iiii Innovations Inc. | Oil-well pump instrumentation device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11814948B2 (en) | 2017-12-31 | 2023-11-14 | Walter Phillips | Apparatus and method for detecting the rotation of a rod-string in a wellbore |
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| US5464058A (en) * | 1993-01-25 | 1995-11-07 | James N. McCoy | Method of using a polished rod transducer |
| CN201045618Y (en) * | 2007-06-09 | 2008-04-09 | 中国石化股份胜利油田分公司河口采油厂 | Pumping unit polish rod acceleration displacement sensor |
| DE112007001533A5 (en) * | 2006-07-03 | 2009-05-20 | Steffens, Ralf, Dr. Ing. | Drive for a screw pump 1 |
| CN201429407Y (en) * | 2009-02-27 | 2010-03-24 | 刘国勇 | Beam angle measuring device of beam-pumping unit |
| CN104697481A (en) * | 2015-01-06 | 2015-06-10 | 中国石油大学(华东) | Device and method for measuring suspension center displacement of pumping unit based on three-axis acceleration sensor |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464058A (en) * | 1993-01-25 | 1995-11-07 | James N. McCoy | Method of using a polished rod transducer |
| DE112007001533A5 (en) * | 2006-07-03 | 2009-05-20 | Steffens, Ralf, Dr. Ing. | Drive for a screw pump 1 |
| CN201045618Y (en) * | 2007-06-09 | 2008-04-09 | 中国石化股份胜利油田分公司河口采油厂 | Pumping unit polish rod acceleration displacement sensor |
| CN201429407Y (en) * | 2009-02-27 | 2010-03-24 | 刘国勇 | Beam angle measuring device of beam-pumping unit |
| CN104697481A (en) * | 2015-01-06 | 2015-06-10 | 中国石油大学(华东) | Device and method for measuring suspension center displacement of pumping unit based on three-axis acceleration sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11319794B2 (en) | 2017-05-01 | 2022-05-03 | 4Iiii Innovations Inc. | Oil-well pump instrumentation device and method |
| WO2019053513A1 (en) * | 2017-09-12 | 2019-03-21 | 4Iiii Innovations Inc. | Oil-well pump instrumentation device and surface card generation method |
| CN110086450A (en) * | 2019-04-30 | 2019-08-02 | 天津万众科技股份有限公司 | Angular displacement sensor and its data processing filtering method |
| CN111664996A (en) * | 2020-07-08 | 2020-09-15 | 福州大学 | Three-dimensional rotation quantity testing device convenient to install and testing method |
| CN111664996B (en) * | 2020-07-08 | 2021-11-30 | 福州大学 | Three-dimensional rotation quantity testing device convenient to install and testing method |
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| CN106767617B (en) | 2019-03-19 |
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