CN104699167A - Automatic balance adjusting method for digital oil pumping unit - Google Patents
Automatic balance adjusting method for digital oil pumping unit Download PDFInfo
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Abstract
A digital oil pumping machine automatic balance adjusting method belongs to the field of oil field development. Acquiring indicator diagrams, current diagram data and power diagram data (if an electric quantity module exists); processing the data to form a correct and complete ground indicator diagram, current diagram data and power diagram; calculating the balance degree according to a set algorithm (a current method or a power method); comparing with the balance degree setting limit, and judging whether the current state is a balanced, underbalanced or overbalanced state; when in the balanced state, the adjustment is not carried out; when the balance is in an under-balanced state, the left adjusting relay is triggered to be closed for a certain time, and the balance weight is increased to increase the balance degree; when the state is an over-balanced state, the right adjusting relay is triggered to be closed for a certain time, and the balance weight is reduced to reduce the balance degree; the above process is repeated. The invention has the following effects: automatically calculating the balance degree according to the current, realizing the automatic balance adjustment of the digital oil pumping unit, and enabling the balance degree of the oil pumping unit to operate within the range of 80-110%; the balance can be adjusted manually on site and remotely.
Description
Technical field
The present invention relates to a kind of automatic adjustment method of digitizing oil pumper, belong to oil-field development field.
Background technology
For Changqing oilfields hydrocarbon-bearing pool present situation, positive promotion and implementation digitizing oil field, reaches personnel reduction and enlargement with this.The new product that digitizing oil pumper is the problems such as, field construction difficulty large, Oil Field get angry, dynamic electric risk factor high, device integration low, each unit in charge of construction mounting means disunity large for installation workload in current digital Construction site operation and develops.Digitizing oil pumper must meet the function of automatic adjustment degree, therefore, need develop and a set ofly can realize according to field working conditions the system that digitizing balance of well pumping unit regulates automatically.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of automatic adjustment method of digitizing oil pumper.
A kind of automatic adjustment method of digitizing oil pumper, containing following steps;
Step 1), collection merit figure, map of current data, power diagram data (if having electricity quantity module);
Step 2), data processing forms correctly complete ground merit figure, map of current data and power diagram;
Step 3), according to set algorithm (current method or power method), calculated equilibrium degree;
Step 4), set limit with quality of balance and compare, judge current as balance, underbalance or overbalance state;
Step 5), when not regulating for during equilibrium state; When for under-balanced state, trigger left tune relay closes certain hour, increase counterweight and quality of balance is increased; When for overbalance state, trigger right tune relay closes certain hour, reduce counterweight and quality of balance is reduced;
Step 6), repeat above process;
Balance adjustment term and step:
Regulate the equipment, device, parameter, the term that relate to:
(1), balancing motor--the driving arrangement of balance adjustment;
(2), rated current--the rated current of balancing motor; Determine the greatest limit electric current of balance motor thus, for electric motor protecting;
(3), limit switch--the contact switch of counterbalance weight Derivative limit on the left or on the right position;
(4), trigger relay is regulated--there are two motor positive and inverse pilot relays, the left tune of corresponding adjustment or right tune;
(5), equilibrium state--quality of balance (between 80% ~ 110%) within the scope of setting;
(6), under-balanced state--quality of balance is less than the minimum value (<80%) of setting range;
(7), overbalance state--quality of balance is greater than the maximal value (>110%) of setting range;
(8), lower--corresponding increase counterweight, ascending current will diminish, and centrifugal current will become greatly, and quality of balance will increase; This adjustment need be carried out during underbalance;
(9), raise-corresponding minimizing counterweight, ascending current will become greatly, and centrifugal current will diminish, and quality of balance will reduce; This adjustment need be carried out during overbalance;
In adjustment process, RTU need monitor the current value of balancing motor, if electric current exceedes setting maximal value certain hour (overtime), then RTU regulating and controlling relay disconnects, and stops regulating; This kind of protected mode used when limit switch lost efficacy or when counterbalance weight is stuck;
Current maxima=N × Rated motor electric current;
Overtime=M(second);
N, M value can be established;
The correlation parameter of balance adjustment process flow diagram:
Minimum quality of balance Hmin,
Maximum quality of balance Hmax,
Current quality of balance H,
Rated motor electric current I max,
Electric current transfinite multiple N,
Electric current overtime M.
The effect of invention:
(1) according to the automatic calculated equilibrium degree of electric current, realize digitizing balance of well pumping unit and automatically regulate, balance of well pumping unit degree is run in 80% ~ 110% scope;
(2) manual adjustments balance and remote adjustment balance on the spot can be realized.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is balance adjustment electric motor protecting algorithm flow chart of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, digitizing balance of well pumping unit regulates program flow diagram as shown in Figure 1.
A kind of automatic adjustment method of digitizing oil pumper, containing following steps;
1, balance adjustment and electric motor protecting control algolithm
1.1 regulate target
By the quality of balance of the rotating forward reversion regulating and controlling oil pumper of balance adjustment motor, regulate target to be make quality of balance within certain scope, be generally between 80% ~ 110%.
1.2 quality of balance algorithms
(1) current method calculated equilibrium degree
When single-phase current mutual inductance transmitter is only installed at the scene, the method calculated equilibrium degree can be used.The method is simple, and cost is lower.
The method quality of balance is defined as: in a stroke cycle, the number percent of the maximum operating currenbt of motor in the maximum operating currenbt of motor and upstroke in down stroke.
(2) power method calculated equilibrium degree
When electric quantity acquisition module is installed at the scene, the method calculated equilibrium degree can be used.Power method can avoid the false current balance type phenomenon because electric power generation state causes.
The method quality of balance is defined as: in a stroke cycle, the number percent of the peak power of motor in the peak power in motor down stroke and upstroke.
1.3 balance adjustment term and process prescriptions
1.3.1 balance adjustment term
Regulate the equipment, device, parameter, the term that relate to:
(1) balancing motor--the driving arrangement of balance adjustment.
(2) rated current--the rated current of balancing motor.Determine the greatest limit electric current of balance motor thus, for electric motor protecting.
(3) limit switch--the contact switch of counterbalance weight Derivative limit on the left or on the right position.
(4) trigger relay is regulated--there are two motor positive and inverse pilot relays, the left tune of corresponding adjustment or right tune.
(5) equilibrium state--quality of balance (between 80% ~ 110%) within the scope of setting.
(6) under-balanced state--quality of balance is less than the minimum value (<80%) of setting range.
(7) overbalance state--quality of balance is greater than the maximal value (>110%) of setting range.
(8) lower--corresponding increase counterweight, ascending current will diminish, and centrifugal current will become greatly, and quality of balance will increase.This adjustment need be carried out during underbalance.
(9) raise-corresponding minimizing counterweight, ascending current will become greatly, and centrifugal current will diminish, and quality of balance will reduce.This adjustment need be carried out during overbalance.
1.3.2 adjustment process is summarized:
(1) merit figure, map of current data, power diagram data (if having electricity quantity module) are gathered;
(2) data processing forms correctly complete ground merit figure, map of current data and power diagram;
(3) according to set algorithm (current method or power method), calculated equilibrium degree;
(4) set limit with quality of balance to compare, judge current as balance, underbalance or overbalance state;
(5) when not regulating for during equilibrium state; When for under-balanced state, trigger left tune relay closes certain hour, increase counterweight and quality of balance is increased; When for overbalance state, trigger right tune relay closes certain hour, reduce counterweight and quality of balance is reduced;
(6) above process is repeated.
2, the protection of balance motor
Limit switches, electric current transfinite two kinds of protected modes:
(1) position limitation protection
In adjustment process, when counterbalance weight arrives Derivative limit on the left or on the right position, will limit switch be triggered, and regulating relay just can be made to disconnect by appliance circuit, and stop regulating, and now only have and regulate in the other direction and can work.This kind of protected mode participates in without the need to RTU.
(2) current protection
In adjustment process, RTU need monitor the current value of balancing motor, if electric current exceedes setting maximal value certain hour (overtime), then RTU regulating and controlling relay disconnects, and stops regulating.This kind of protected mode used when limit switch lost efficacy or when counterbalance weight is stuck.
Current maxima=N × Rated motor electric current;
2. overtime=M(second);
N, M value can be established.
1.5 balance adjustment process flow diagrams
Correlation parameter:
Minimum quality of balance Hmin,
Maximum quality of balance Hmax,
Current quality of balance H,
Rated motor electric current I max,
Electric current transfinite multiple N,
Electric current overtime M.
Be applicable to the automatic leveling balance system that digitizing oil pumper in Oil in Super-low Permeability oil field is produced, make digitizing oil pumper in operational process, realize self balancing adjustment, reach energy-saving and emission-reduction, improve system effectiveness, the object of increase yield.
In in May, 2013 in extra-low-permeability reservoir Section 4 order portion too San Lian town, Bai Liang operation area town 19 increase town 306-783, town 306-782 well carried out digitizing oil pumper experiment.
Wellsite test
1. town 306-783 well
Process of the test: because merit figure feature is that serious feed flow is not enough, during test, conversion frequencies is set to 50HZ by scene, and frequency conversion is set to auto state.
Each Parameters variation table when table 1 frequency conversion regulates automatically
Can find out: through repeatedly adjusting, well on the beam frequency conversion is finally stabilized in 25HZ and runs, and balance of well pumping unit rate progressively trends towards 1, finally shows 1.03.
2. town 306-782 well
Process of the test: during test, conversion frequencies is set to 20HZ by scene, and frequency conversion is set to auto state.
Each Parameters variation table when table 2 frequency conversion regulates automatically
| Test event | One | Two | Three |
| Active power | 2.78 | 3.68 | 5.99 |
| Reactive power | 0.98 | 0.99 | 0.66 |
| Balanced ratio % | 1.08 | 0.96 | 1.04 |
| Conversion frequencies (HZ) | 20.47 | 21.92 | 45.16 |
Can find out: through repeatedly adjusting, oil pumper frequency conversion is finally stabilized in 45HZ and runs, and correspondingly electric current, active power progressively increase, and reactive power progressively reduces; Well on the beam balanced ratio progressively trends towards 1, finally shows 1.04.
Balance regulates test automatically: the balance of town 306-783, town 306-782 well is manually adjusted to non-equilibrium state, then rotates balance adjustment button to auto state, and oil pumper progressively reaches balance.
Test proves, this balanced system can realize digitizing oil pumper Automatic Balance Regulation, works under making it remain on good equilibrium state, thus improves system effectiveness, the target reaching energy-conservation, increase production.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (2)
1. the automatic adjustment method of digitizing oil pumper, is characterized in that containing following steps;
Step 1), collection merit figure, map of current data, power diagram data (if having electricity quantity module);
Step 2), data processing forms correctly complete ground merit figure, map of current data and power diagram;
Step 3), according to set algorithm (current method or power method), calculated equilibrium degree;
Step 4), set limit with quality of balance and compare, judge current as balance, underbalance or overbalance state;
Step 5), when not regulating for during equilibrium state; When for under-balanced state, trigger left tune relay closes certain hour, increase counterweight and quality of balance is increased; When for overbalance state, trigger right tune relay closes certain hour, reduce counterweight and quality of balance is reduced;
Step 6), repeat above process.
2. the automatic adjustment method of a kind of digitizing oil pumper according to claim 1, is characterized in that balance adjustment and step:
Regulate the equipment, device, parameter, the term that relate to:
(1), balancing motor--the driving arrangement of balance adjustment;
(2), rated current--the rated current of balancing motor; Determine the greatest limit electric current of balance motor thus, for electric motor protecting;
(3), limit switch--the contact switch of counterbalance weight Derivative limit on the left or on the right position;
(4), trigger relay is regulated--there are two motor positive and inverse pilot relays, the left tune of corresponding adjustment or right tune;
(5), equilibrium state--quality of balance (between 80% ~ 110%) within the scope of setting;
(6), under-balanced state--quality of balance is less than the minimum value (<80%) of setting range;
(7), overbalance state--quality of balance is greater than the maximal value (>110%) of setting range;
(8), lower--corresponding increase counterweight, ascending current will diminish, and centrifugal current will become greatly, and quality of balance will increase; This adjustment need be carried out during underbalance;
(9), raise-corresponding minimizing counterweight, ascending current will become greatly, and centrifugal current will diminish, and quality of balance will reduce; This adjustment need be carried out during overbalance;
In adjustment process, RTU need monitor the current value of balancing motor, if electric current exceedes setting maximal value certain hour (overtime), then RTU regulating and controlling relay disconnects, and stops regulating; This kind of protected mode used when limit switch lost efficacy or when counterbalance weight is stuck;
Current maxima=N × Rated motor electric current;
Overtime=M(second);
N, M value can be established;
The correlation parameter of balance adjustment process flow diagram:
Minimum quality of balance Hmin,
Maximum quality of balance Hmax,
Current quality of balance H,
Rated motor electric current I max,
Electric current transfinite multiple N,
Electric current overtime M.
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| CN201310655991.2A CN104699167B (en) | 2013-12-06 | 2013-12-06 | Automatic balance adjusting method for digital oil pumping unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068463A (en) * | 2015-06-29 | 2015-11-18 | 鞍山新兴石油科技有限公司 | Pumping unit digitized transformation method |
| CN108374782A (en) * | 2018-03-26 | 2018-08-07 | 中国石油化工股份有限公司 | A kind of balance of well pumping unit rate method of adjustment |
| CN109542156A (en) * | 2017-09-21 | 2019-03-29 | 中国石油天然气股份有限公司 | Method and device for determining joint regulation and control strategy of multiple pumping units |
| CN110725669A (en) * | 2018-10-18 | 2020-01-24 | 上海逸讯能源科技有限公司 | Intelligent balance adjusting method for beam-pumping unit and related device |
| CN111963117A (en) * | 2020-09-08 | 2020-11-20 | 中国石油天然气股份有限公司 | Downhole choke and control method thereof |
Citations (3)
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|---|---|---|---|---|
| CN201050348Y (en) * | 2007-05-14 | 2008-04-23 | 夏小平 | Oil pump balance control device |
| CN102691491A (en) * | 2011-03-24 | 2012-09-26 | 高阳特 | Energy-saving type oil pumping unit with balance automatically adjusted by liquid |
| CN103161430A (en) * | 2011-12-14 | 2013-06-19 | 中国石油天然气股份有限公司 | Real-time intelligent regulation method and device for stroke frequency and balance of oil pumping unit |
-
2013
- 2013-12-06 CN CN201310655991.2A patent/CN104699167B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201050348Y (en) * | 2007-05-14 | 2008-04-23 | 夏小平 | Oil pump balance control device |
| CN102691491A (en) * | 2011-03-24 | 2012-09-26 | 高阳特 | Energy-saving type oil pumping unit with balance automatically adjusted by liquid |
| CN103161430A (en) * | 2011-12-14 | 2013-06-19 | 中国石油天然气股份有限公司 | Real-time intelligent regulation method and device for stroke frequency and balance of oil pumping unit |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068463A (en) * | 2015-06-29 | 2015-11-18 | 鞍山新兴石油科技有限公司 | Pumping unit digitized transformation method |
| CN109542156A (en) * | 2017-09-21 | 2019-03-29 | 中国石油天然气股份有限公司 | Method and device for determining joint regulation and control strategy of multiple pumping units |
| CN109542156B (en) * | 2017-09-21 | 2020-09-08 | 中国石油天然气股份有限公司 | Method and device for determining joint regulation and control strategy of multiple pumping units |
| CN108374782A (en) * | 2018-03-26 | 2018-08-07 | 中国石油化工股份有限公司 | A kind of balance of well pumping unit rate method of adjustment |
| CN108374782B (en) * | 2018-03-26 | 2020-06-30 | 中国石油化工股份有限公司 | Method for adjusting balance rate of oil pumping unit |
| CN110725669A (en) * | 2018-10-18 | 2020-01-24 | 上海逸讯能源科技有限公司 | Intelligent balance adjusting method for beam-pumping unit and related device |
| CN115045638A (en) * | 2018-10-18 | 2022-09-13 | 上海逸讯能源科技有限公司 | Intelligent balance adjusting method and related device for beam-pumping unit |
| CN111963117A (en) * | 2020-09-08 | 2020-11-20 | 中国石油天然气股份有限公司 | Downhole choke and control method thereof |
| CN111963117B (en) * | 2020-09-08 | 2022-07-05 | 中国石油天然气股份有限公司 | Downhole choke and control method thereof |
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