CN110056343A - The determination method and apparatus in electric pump well hydrodynamic face - Google Patents
The determination method and apparatus in electric pump well hydrodynamic face Download PDFInfo
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- CN110056343A CN110056343A CN201810035515.3A CN201810035515A CN110056343A CN 110056343 A CN110056343 A CN 110056343A CN 201810035515 A CN201810035515 A CN 201810035515A CN 110056343 A CN110056343 A CN 110056343A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000003129 oil well Substances 0.000 claims abstract description 46
- 238000005259 measurement Methods 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000009877 rendering Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 14
- 239000007788 liquid Substances 0.000 description 13
- 239000006260 foam Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- 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
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
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- 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
- E21B47/06—Measuring temperature or pressure
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The embodiment of the present invention provides a kind of determination method and apparatus in electric pump well hydrodynamic face, this method comprises: in real-time measurement oil well oil pressure pressure, obtain multiple pressure values；According to multiple pressure values, the steady pressure value when pressure of the oil pressure reaches stable is determined；According to the steady pressure value, the hydrodynamic face of electric pump well is determined.The embodiment of the present invention can not only improve the precision of hydrodynamic planar survey, and can reduce the cost of measurement.
Description
Technical field
The present embodiments relate to oil extraction in oil field field of engineering technology more particularly to a kind of determination sides in electric pump well hydrodynamic face
Method.
Background technique
The hydrodynamic face of electric pump well refers in the oil well produced with submersible electric pump, the depth of liquid level in electric pump pipe column and casing annulus
Degree, wherein the depth is necessarily less than the depth of the suction inlet of submersible electric pump, just can guarantee the normal production of oil well in this way.In addition,
Whether the working condition that the depth size in hydrodynamic face not only can reflect submersible electric pump is normal, can also reflect that the feed flow on stratum is
No abundance, therefore, the data for how accurately calculating hydrodynamic face are very important.
In the prior art, usually using transmitting sound wave, reception back wave in the way of test hydrodynamic face, specifically, Ke Yitong
Installation echometer is crossed, to emit sound wave to underground, sound wave will do it rebound after encountering hydrodynamic face, then by receiving rebound
Acoustic signals, and received rebound signal is identified, to determine dynamic oil level.
However, the mode of above-mentioned calculating dynamic oil level can be led due to being influenced by foam, sundries etc. in oil jacket annulus
Cause measuring accuracy not high, and higher cost.
Summary of the invention
The embodiment of the present invention provides a kind of determination method and apparatus in electric pump well hydrodynamic face, can not only improve the survey of hydrodynamic face
The precision of examination, and measurement cost can be reduced.
In a first aspect, the embodiment of the present invention provides a kind of determination method in electric pump well hydrodynamic face, comprising:
The pressure of oil pressure in real-time measurement oil well, obtains multiple pressure values；
According to multiple pressure values, the steady pressure value when pressure of the oil pressure reaches stable is determined；
According to the steady pressure value, the hydrodynamic face of electric pump well is determined.
In the present solution, pressure due to only needing to test oil pressure in oil well, and determine steady when pressure reaches stable
Level pressure force value can quickly determine the hydrodynamic face of electric pump well, avoid and need to install echometer in the prior art, and lead to
When crossing echometer measurement hydrodynamic face, it will receive the phenomenon that foam in oil jacket annulus, sundries etc. influence, thus can not only mention
The precision of the dynamic liquid level test of height, and testing cost can be reduced.
Optionally, described according to multiple pressure values, determine the steady pressure when pressure of the oil pressure reaches stable
Value, comprising:
According to multiple pressure values, and the time of each pressure value of measurement, pressure scatter plot is drawn；
According to the pressure scatter plot, the steady pressure value when oil pressure reaches stable is determined.
Optionally, described according to the pressure scatter plot, it determines the steady pressure value when oil pressure reaches stable, wraps
It includes:
According to the pressure scatter plot, the slope value of each point is determined；
Corresponding pressure value is determined as the steady pressure value when by the slope value being zero.
In the present solution, due to according to multiple pressure values, and the time of each pressure value of measurement, pressure scatter plot is drawn,
And according to pressure scatter plot, steady pressure value when oil pressure reaches stable is determined, so that the method for determination of steady pressure value
It is relatively simple.
Optionally, described according to the steady pressure value, calculate the hydrodynamic face of electric pump well, comprising:
According to formulaDetermine the hydrodynamic face of the electric pump well, wherein the HdFor
The hydrodynamic face of the electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor the actual production frequency of the electric pump,
fVolumeFor the specified production frequency of the electric pump, F is friction loss, P0For the steady pressure value.
It, can be according to formula in the present solution, after determining steady pressure valueThe hydrodynamic face of electric pump well is determined, it is possible thereby to improve electric pump well hydrodynamic planar survey
Efficiency.
Optionally, the steady pressure value is when the electric pump is produced with actual frequency, and the oil pressure in the oil well exists
Close the pressure when oil well preset time period reaches stable later.
Second aspect, the embodiment of the present invention provide a kind of determining device in electric pump well hydrodynamic face, comprising:
Measurement module obtains multiple pressure values for the pressure of oil pressure in real-time measurement oil well；
Determining module stablizes pressure when the pressure of the oil pressure reaches stable for determining according to multiple pressure values
Force value；
The determining module is also used to determine the hydrodynamic face of electric pump well according to the steady pressure value.
Optionally, the determining module, comprising:
Rendering submodule, for drawing pressure according to multiple pressure values, and the time of each pressure value of measurement
Scatter plot；
Submodule is determined, for determining the steady pressure value when oil pressure reaches stable according to the pressure scatter plot.
Optionally, the determining submodule, is specifically used for:
According to the pressure scatter plot, the slope value of each point is determined；
Corresponding pressure value is determined as the steady pressure value when by the slope value being zero.
Optionally, the determining module, comprising:
Computational submodule, for according to formulaCalculate the hydrodynamic of the electric pump well
Face, wherein the HdFor the hydrodynamic face of the electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor the electricity
The actual production frequency of pump, fVolumeFor the specified production frequency of the electric pump, F is friction loss, P0For the steady pressure value.
Optionally, the steady pressure value is when the electric pump is produced with actual frequency, and the oil pressure in the oil well exists
Close the pressure when oil well preset time period reaches stable later.
The determination method and apparatus in electric pump well hydrodynamic provided by the invention face pass through the pressure of oil pressure in real-time measurement oil well
Power obtains multiple pressure values, then according to multiple pressure values, determines the steady pressure value when pressure of oil pressure reaches stable, and
According to the steady pressure value determined, the hydrodynamic face of electric pump well is determined.Due to only needing to test the pressure of oil pressure in oil well, and really
Steady pressure value when pressure reaches stable is made, the hydrodynamic face of electric pump well can be quickly determined, avoid in the prior art
When needing to install echometer, and measuring hydrodynamic face by echometer, it will receive the shadows such as foam in oil jacket annulus, sundries
Thus loud phenomenon not only can be improved the precision of dynamic liquid level test, but also can reduce testing cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of the determination embodiment of the method one in electric pump well hydrodynamic provided in an embodiment of the present invention face；
Fig. 2 is the flow diagram of the determination embodiment of the method two in electric pump well hydrodynamic provided in an embodiment of the present invention face；
The pressure scatter plot between time when Fig. 3 is the pressure and measurement pressure of oil pressure；
Fig. 4 is the flow diagram of the determination embodiment of the method three in electric pump well hydrodynamic provided in an embodiment of the present invention face；
Fig. 5 is the operation schematic diagram of electric pump well；
Fig. 6 is the structural schematic diagram of the determination Installation practice one in electric pump well hydrodynamic provided in an embodiment of the present invention face；
Fig. 7 is the structural schematic diagram of the determination Installation practice two in electric pump well hydrodynamic provided in an embodiment of the present invention face；
Fig. 8 is the structural schematic diagram of the determination Installation practice three in electric pump well hydrodynamic provided in an embodiment of the present invention face.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Before description of specific embodiments of the present invention, first just some basic concepts are explained:
(1) hydrodynamic face
Hydrodynamic face is pumpingh well during normal production, as soon as oil pipe and casing annulus have a liquid level, this liquid level
Hydrodynamic face.Hydrodynamic face can use its position of the depth representing counted from well head, it is also possible to which the height counted in the middle part of from oil reservoir indicates
Its position.
(2) lift
The lift of pump is also known as the pressure head pumped, refers to Unit Weight fluid through pumping energy obtained.The lift size of pump
Structure (size of such as impeller diameter, bending situation of blade etc., revolving speed depending on pump.
The determination method in electric pump well hydrodynamic provided in an embodiment of the present invention face is applied in submerged electric oil pump well.Due to hydrodynamic
Whether the working condition that the depth size in face not only can reflect submersible electric pump is normal, can also reflect whether the feed flow on stratum fills
Foot, therefore the data in hydrodynamic face are very important.According to the requirement in oil field, the submerged electric oil pump well that every mouth normally produces,
A hydrodynamic face data must be at least obtained in preset time period.In the prior art, usually anti-using transmitting sound wave, reception
The mode of ejected wave tests hydrodynamic face, specifically, can be by installing echometer, to emit sound wave to underground, when sound wave is met
It will do it rebound, then the acoustic signals by receiving rebound after to hydrodynamic face, and received rebound signal identified, with true
Determine dynamic oil level.But by way of above-mentioned calculating dynamic oil level, due to by foam, sundries etc. in oil jacket annulus
It influences, it is not high to will lead to measuring accuracy, and higher cost.
Therefore, the determination method and apparatus in electric pump well hydrodynamic provided in an embodiment of the present invention face, it is intended to solve the prior art
When middle determining hydrodynamic face, the technical issues of measuring accuracy is not high and higher cost.
The embodiment of the present invention considers these situations, a kind of determination method in electric pump well hydrodynamic face is proposed, by surveying in real time
The pressure for measuring oil pressure in oil well, obtains multiple pressure values, then according to multiple pressure values, when determining that the pressure of oil pressure reaches stable
Steady pressure value determine the hydrodynamic face of electric pump well and according to the steady pressure value determined.Due to only needing to test in oil well
The pressure of oil pressure, and determine steady pressure value when pressure reaches stable, it can quickly determine the hydrodynamic face of electric pump well, keep away
When having exempted to need to install echometer in the prior art, and having measured hydrodynamic face by echometer, oil jacket annulus will receive
Middle foam, sundries etc. influence the phenomenon that, the precision of dynamic liquid level test thus not only can be improved, and can reduce test at
This.
Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is the flow diagram of the determination embodiment of the method one in electric pump well hydrodynamic provided in an embodiment of the present invention face.This
Inventive embodiments provide a kind of determination method in electric pump well hydrodynamic face, and this method can be by arbitrarily executing electric pump well hydrodynamic face
The device of method is determined to execute, which can pass through software and or hardware realization.As shown in Figure 1, the method for the present embodiment
May include:
The pressure of oil pressure, obtains multiple pressure values in step 101, real-time measurement oil well.
In embodiments of the present invention, when oil well production when, will need to measure the pressure of oil pressure in oil well.In practical application
In, the pressure of oil pressure in oil well can be measured in real time, can also every predetermined period measure an oil well in oil pressure pressure,
Wherein, predetermined period can according to the actual situation or experience is configured, such as can be set to 1s, 5s etc., for default
The specific value in period, this is not restricted for the embodiment of the present invention.
In one possible implementation, the pressure of oil pressure in oil well can be measured by pressure sensor, such as can
To pass through the pressure of oil pressure in gauge measurement oil well, it is of course also possible to measured by other pressure sensors, for
The concrete form of pressure sensor, the embodiment of the present invention is with no restriction.
Step 102, according to multiple pressure values, determine the steady pressure value when pressure of oil pressure reaches stable.
In embodiments of the present invention, after measuring multiple pressure values, by according to the pressure value measured, oil pressure is determined
Steady pressure value of pressure when reaching stable.Wherein, when steady pressure value is that multiple pressure values for continuously measuring are equal in magnitude
Pressure value.Certainly, in practical applications, due to being effected by environmental factors, it is impossible to be the multiple pressure continuously measured
It is essentially equal to be worth size, therefore, when the fluctuation range of the several pressure values continuously measured can be in pre-set interval, it is believed that
The pressure of oil pressure has reached stabilization, at this point it is possible to multiple pressure values that fluctuation range is in pre-set interval are averaged,
To determine steady pressure value.
Wherein, pre-set interval can according to the actual situation or experience is configured, such as can be set to 0.5,0.75
Deng for the specific value of pre-set interval, this is not restricted for the embodiment of the present invention.
Further optionally, aforementioned stable pressure value is when electric pump is produced with actual frequency, and the oil pressure in oil well is being closed
Pressure when reaching stable after oil well preset time period.
Step 103, according to steady pressure value, determine the hydrodynamic face of electric pump well.
In embodiments of the present invention, after the steady pressure value when the pressure for determining oil pressure reaches stable, Ke Yigen
According to steady pressure value, the hydrodynamic face of electric pump well is determined.When determining the hydrodynamic face of electric pump well through the above way, due to need not be according to
Rely other expensive equipment instruments, only rely on signal transporting function pressure gauge test and time time set, control device,
Display device, storage computing device etc. can monitor hydrodynamic face data at any time, therefore, are particularly suitable for site administrator and implement
Hole condition enables staff that can early find the problem as early as possible.In addition, the precision in the hydrodynamic face determined through the above way compared with
It is high.
The determination method in electric pump well hydrodynamic provided in an embodiment of the present invention face passes through the pressure of oil pressure in real-time measurement oil well
Power obtains multiple pressure values, then according to multiple pressure values, determines the steady pressure value when pressure of oil pressure reaches stable, and
According to the steady pressure value determined, the hydrodynamic face of electric pump well is determined.Due to only needing to test the pressure of oil pressure in oil well, and really
Steady pressure value when pressure reaches stable is made, the hydrodynamic face of electric pump well can be quickly determined, avoid in the prior art
When needing to install echometer, and measuring hydrodynamic face by echometer, it will receive the shadows such as foam in oil jacket annulus, sundries
Thus loud phenomenon not only can be improved the precision of dynamic liquid level test, but also can reduce testing cost.
Fig. 2 is the flow diagram of the determination embodiment of the method two in electric pump well hydrodynamic provided in an embodiment of the present invention face.This
On the basis of inventive embodiments embodiment shown in Fig. 1, to according to multiple pressure values, determine that the pressure of the oil pressure reaches stable
When the embodiment of steady pressure value be described in detail.As shown in Fig. 2, the method for the present embodiment may include:
The pressure of oil pressure, obtains multiple pressure values in step 201, real-time measurement oil well.
Step 201 is similar with step 101, and details are not described herein again.
Step 202, according to multiple pressure values, and time of each pressure value of measurement, draw pressure scatter plot.
In present example, the pressure scatter plot between time when Fig. 3 is the pressure and measurement pressure of oil pressure, such as schemes
Shown in 3, when measuring each pressure value, need to record time when measuring each pressure value, and the pressure value measured, according to survey
The multiple pressure values measured, and time when each pressure value of measurement, can draw out pressure scatter plot.According to Fig. 3, Ke Yicha
When asking any time, the pressure value of oil pressure in oil well.
Step 203, according to pressure scatter plot, determine steady pressure value when oil pressure reaches stable.
In embodiments of the present invention, after drawing out pressure scatter plot, it will determine that oil pressure reaches according to pressure scatter plot
Steady pressure value when stablizing.
In one possible implementation, according to pressure scatter plot, steady pressure value when oil pressure reaches stable is determined,
It can carry out in the following way: according to pressure scatter plot, determine the slope value of each point, and while being zero by slope value corresponding pressure
Force value is determined as steady pressure value.
Wherein, in the oil pressure for getting real-time oil well, and using real-time time as abscissa, the oil pressure of oil well is sat as vertical
Mark generate scatter plot, and according to the scatter plot can with fit slope be 0 when oil pressure, to calculate the depth number in hydrodynamic face
According to.Specifically, after drawing out pressure scatter plot, the slope value of each point can be determined according to the pressure scatter plot, when continuous
The slope of several points is all equal, and be equal to zero when, illustrate that the pressure value of oil pressure will remain unchanged, that is, reach stable state, this
When, when can be zero by slope value, corresponding pressure value be determined as steady pressure value.
Step 204, according to steady pressure value, determine the hydrodynamic face of electric pump well.
In embodiments of the present invention, after the steady pressure value when the pressure for determining oil pressure reaches stable, Ke Yigen
According to steady pressure value, the hydrodynamic face of electric pump well is determined.
The determination method in electric pump well hydrodynamic provided in an embodiment of the present invention face passes through the pressure of oil pressure in real-time measurement oil well
Power obtains multiple pressure values, then according to multiple pressure values, determines the steady pressure value when pressure of oil pressure reaches stable, and
According to the steady pressure value determined, the hydrodynamic face of electric pump well is determined.Due to only needing to test the pressure of oil pressure in oil well, and really
Steady pressure value when pressure reaches stable is made, the hydrodynamic face of electric pump well can be quickly determined, avoid in the prior art
When needing to install echometer, and measuring hydrodynamic face by echometer, it will receive the shadows such as foam in oil jacket annulus, sundries
Thus loud phenomenon not only can be improved the precision of dynamic liquid level test, but also can reduce testing cost.In addition, due to basis
Multiple pressure values, and the time of each pressure value of measurement, draw pressure scatter plot, and according to pressure scatter plot, determine that oil pressure reaches
To steady pressure value when stablizing, so that the method for determination of steady pressure value is relatively simple.
Fig. 4 is the flow diagram of the determination embodiment of the method three in electric pump well hydrodynamic provided in an embodiment of the present invention face.This
On the basis of inventive embodiments embodiment shown in Fig. 1, to according to steady pressure value, the embodiment in the hydrodynamic face of electric pump well is determined
It is described in detail.As shown in figure 4, the method for the present embodiment may include:
The pressure of oil pressure, obtains multiple pressure values in step 401, real-time measurement oil well.
Step 402, according to multiple pressure values, determine the steady pressure value when pressure of the oil pressure reaches stable.
Step 401- step 402 is similar with step 101- step 102, and details are not described herein again.
Step 403, according to formula, calculate the hydrodynamic face of electric pump well.
Wherein, HdFor the hydrodynamic face of electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor the reality of electric pump
Produce frequency, fVolumeFor the specified production frequency of electric pump, F is friction loss, P0For steady pressure value.
In embodiments of the present invention, it will be understood by those skilled in the art that since electric pump lift and revolving speed are quadratic relationships,
And revolving speed is determined by the production frequency of electric pump well, and proportional with revolving speed, that is, meets the relationship of formula (1):
Wherein, HIt is realLift when for electric pump actual production frequency, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor
Electric pump actual production frequency, fVolumeFor the specified production frequency of electric pump.
Fig. 5 is the operation schematic diagram of electric pump well, as shown in figure 5, due to HIt is realMeet following formula (2):
HIt is real=Hp+P0+F-P (2)
Wherein HpIt is the depth of pump setting depth namely electric pump suction inlet, P is submergence, i.e., such as the hydrodynamic face in Fig. 5 to suction
The height of entrance, P0It is oil pressure reduced depth data, as steady pressure value, F is friction loss.
In addition, since hydrodynamic face meets following formula (3):
Hd=Hp-P (3)
According to formula (1)-formula (3), following formula (4) can be derived:
According to formula (4), following formula (5) can be derived:
According to formula (5) it is found that need to only determine steady pressure value P0, the depth H in hydrodynamic face can be calculatedd。
It needs to be illustrated, in practical applications, due to the value very little of friction loss F, calculating hydrodynamic face
Depth HdWhen, the value of friction loss F can be set to the value of a very little, such as 0,0.01 etc., for friction loss F's
Specific value, can according to the actual situation or experience is configured, and this is not restricted for the embodiment of the present invention.
It, can be direct according to above-mentioned formula (5) after steady pressure value when the pressure for determining oil pressure reaches stable
Calculate the hydrodynamic face of electric pump well.Therefore, because only needing to test the pressure of oil pressure in oil well, and determine that pressure reaches stable
When steady pressure value, can quickly determine the hydrodynamic face of electric pump well, the precision of dynamic liquid level test thus not only can be improved,
And testing cost can be reduced.
The determination method in electric pump well hydrodynamic provided in an embodiment of the present invention face passes through the pressure of oil pressure in real-time measurement oil well
Power obtains multiple pressure values, then according to multiple pressure values, determines the steady pressure value when pressure of oil pressure reaches stable, and
According to the steady pressure value determined, the hydrodynamic face of electric pump well is determined.Due to only needing to test the pressure of oil pressure in oil well, and really
Steady pressure value when pressure reaches stable is made, the hydrodynamic face of electric pump well can be quickly determined, avoid in the prior art
When needing to install echometer, and measuring hydrodynamic face by echometer, it will receive the shadows such as foam in oil jacket annulus, sundries
Thus loud phenomenon not only can be improved the precision of dynamic liquid level test, but also can reduce testing cost.In addition, determining
It, can be according to formula after steady pressure valueDetermine the hydrodynamic face of electric pump well, thus
The efficiency of electric pump well hydrodynamic planar survey can be improved.
Fig. 6 is the structural schematic diagram of the determination Installation practice one in electric pump well hydrodynamic provided in an embodiment of the present invention face, such as
Shown in Fig. 6, which includes: measurement module 11 and determining module 12.
Pressure of the measurement module 11 for oil pressure in real-time measurement oil well, obtains multiple pressure values；
Determining module 12 is used to determine according to multiple pressure values and stablize pressure when the pressure of the oil pressure reaches stable
Force value；
The determining module 12 is also used to determine the hydrodynamic face of electric pump well according to the steady pressure value.
The determining device in the electric pump well hydrodynamic face provided in the present embodiment, measurement module 11 pass through oil in real-time measurement oil well
The pressure of pressure, obtains multiple pressure values, and determining module 12 determines steady when the pressure of oil pressure reaches stable according to multiple pressure values
The steady pressure value that level pressure force value, determining module 12 and basis are determined, determines the hydrodynamic face of electric pump well.Due to only needing to test
The pressure of oil pressure in oil well, and determine steady pressure value when pressure reaches stable, it can quickly determine the dynamic of electric pump well
Liquid level avoids and needs to install echometer in the prior art, and by echometer measure hydrodynamic face when, will receive oil
The phenomenon that aerial foam of lantern ring, sundries etc. influence, thus not only can be improved the precision of dynamic liquid level test, but also can reduce survey
Try cost.
Fig. 7 is the structural schematic diagram of the determination Installation practice two in electric pump well hydrodynamic provided in an embodiment of the present invention face,
On the basis of embodiment illustrated in fig. 6, which includes: rendering submodule 121 and determining submodule 122.
Rendering submodule 121 is used to draw pressure according to multiple pressure values, and the time of each pressure value of measurement
Power scatter plot；
Determine submodule 122 for determining the steady pressure when oil pressure reaches stable according to the pressure scatter plot
Value.
The determining device in the electric pump well hydrodynamic face provided in the present embodiment can be used for executing aforementioned either method embodiment
Technical solution, implementing principle and technical effect are similar with embodiment of the method, and details are not described herein.
Optionally, the determining submodule 122 is specifically used for:
According to the pressure scatter plot, the slope value of each point is determined；
Corresponding pressure value is determined as the steady pressure value when by the slope value being zero.
The determining device in the electric pump well hydrodynamic face provided in the present embodiment can be used for executing aforementioned either method embodiment
Technical solution, implementing principle and technical effect are similar with embodiment of the method, and details are not described herein.
Fig. 8 is the structural schematic diagram of the determination Installation practice three in electric pump well hydrodynamic provided in an embodiment of the present invention face,
On the basis of embodiment illustrated in fig. 6, which includes: computational submodule 123.
Computational submodule 123 is used for according to formulaCalculate the dynamic of the electric pump well
Liquid level, wherein the HdFor the hydrodynamic face of the electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realIt is described
The actual production frequency of electric pump, fVolumeFor the specified production frequency of the electric pump, F is friction loss, P0For the steady pressure value.
The determining device in the electric pump well hydrodynamic face provided in the present embodiment can be used for executing aforementioned either method embodiment
Technical solution, implementing principle and technical effect are similar with embodiment of the method, and details are not described herein.
Optionally, the steady pressure value is when the electric pump is produced with actual frequency, and the oil pressure in the oil well exists
Close the pressure when oil well preset time period reaches stable later.
The determining device in the electric pump well hydrodynamic face provided in the present embodiment can be used for executing aforementioned either method embodiment
Technical solution, implementing principle and technical effect are similar with embodiment of the method, and details are not described herein.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of determination method in electric pump well hydrodynamic face characterized by comprising
The pressure of oil pressure in real-time measurement oil well, obtains multiple pressure values；
According to multiple pressure values, the steady pressure value when pressure of the oil pressure reaches stable is determined；
According to the steady pressure value, the hydrodynamic face of electric pump well is determined.
2. determining the oil pressure the method according to claim 1, wherein described according to multiple pressure values
Steady pressure value of pressure when reaching stable, comprising:
According to multiple pressure values, and the time of each pressure value of measurement, pressure scatter plot is drawn；
According to the pressure scatter plot, the steady pressure value when oil pressure reaches stable is determined.
3. according to the method described in claim 2, determining the oil pressure it is characterized in that, described according to the pressure scatter plot
Steady pressure value when reaching stable, comprising:
According to the pressure scatter plot, the slope value of each point is determined；
Corresponding pressure value is determined as the steady pressure value when by the slope value being zero.
4. method according to claim 1-3, which is characterized in that it is described according to the steady pressure value, it determines
The hydrodynamic face of electric pump well, comprising:
According to formulaCalculate the hydrodynamic face of the electric pump well, wherein the HdIt is described
The hydrodynamic face of electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor the actual production frequency of the electric pump, fVolumeFor
The specified production frequency of the electric pump, F are friction loss, P0For the steady pressure value.
5. method according to claim 1-3, which is characterized in that the steady pressure value be the electric pump with
Pressure of the oil pressure when reaching stable after closing oil well preset time period when actual frequency produces, in the oil well.
6. a kind of determining device in electric pump well hydrodynamic face characterized by comprising
Measurement module obtains multiple pressure values for the pressure of oil pressure in real-time measurement oil well；
Determining module, for determining the steady pressure value when pressure of the oil pressure reaches stable according to multiple pressure values；
The determining module is also used to determine the hydrodynamic face of electric pump well according to the steady pressure value.
7. device according to claim 6, which is characterized in that the determining module, comprising:
Rendering submodule, for drawing pressure scatterplot according to multiple pressure values, and the time of each pressure value of measurement
Figure；
Submodule is determined, for determining the steady pressure value when oil pressure reaches stable according to the pressure scatter plot.
8. device according to claim 7, which is characterized in that the determining submodule is specifically used for:
According to the pressure scatter plot, the slope value of each point is determined；
Corresponding pressure value is determined as the steady pressure value when by the slope value being zero.
9. according to the described in any item devices of claim 6-8, which is characterized in that the determining module, comprising:
Computational submodule, for according to formulaThe hydrodynamic face of the electric pump well is calculated,
In, the HdFor the hydrodynamic face of the electric pump well, HVolumeFor the lift under the specified production frequency of electric pump, fIt is realFor the reality of the electric pump
Border produces frequency, fVolumeFor the specified production frequency of the electric pump, F is friction loss, P0For the steady pressure value.
10. according to the described in any item devices of claim 6-8, which is characterized in that the steady pressure value is in the electric pump
Pressure of the oil pressure when reaching stable after closing oil well preset time period when being produced with actual frequency, in the oil well
Power.
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