CN107339087A - A kind of water injection rate splits a point method and device - Google Patents
A kind of water injection rate splits a point method and device Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 310
- 238000002347 injection Methods 0.000 title claims abstract description 290
- 239000007924 injection Substances 0.000 title claims abstract description 290
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000005259 measurement Methods 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 40
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- 235000020681 well water Nutrition 0.000 claims description 11
- 239000002349 well water Substances 0.000 claims description 11
- 230000035699 permeability Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 127
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- 230000006870 function Effects 0.000 description 7
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- 238000005516 engineering process Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 4
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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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
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Abstract
The embodiment of the present application discloses a kind of water injection rate and splits a point method and device.Methods described includes：According to the dynamic data of each water injection well and the dynamic data of each producing well, multiple flooding units of purpose oil reservoir block are determined；For specifying flooding unit in multiple flooding units, it is determined that specifying specify the water injection rate of water injection well to be distributed respectively on each oil reservoir in flooding unit initial vertical to split score value；It is determined that water injection well is specified to split score value by the oil reservoir initial plane that each producing well distributes into specified flooding unit respectively；Vertical score value is split based on initial and initial plane splits score value, and the full well Liquid output of actual measurement and the full well moisture content of actual measurement, it is determined that the target for specifying the water injection rate of water injection well to distribute on each oil reservoir respectively is vertical to split score value, and determine to specify water injection well to split score value by the oil reservoir objective plane that each producing well distributes into specified flooding unit respectively.The degree of accuracy that water injection rate is split point can be improved.
Description
Technical field
The application is related to oil field development technical field, and more particularly to a kind of water injection rate splits a point method and device.
Background technology
After oil field is put into production, with the growth of recovery time, oil reservoir energy itself will be constantly consumed, and this can make oil
Stressor layer constantly declines, and formation pressure, which declines, to cause underground crude oil largely to deaerate, viscosity increase so that field output subtracts significantly
It is few.In order to keep or improve formation pressure, oil field stable high yield is realized, it is necessary to carry out water filling to oil reservoir.Wherein, oil field produced
Cheng Zhong, can be by water injection well to oil-bearing stratum flooding, and specifically, every mouthful of water injection well can be connected with least a bite producing well, note
The water of well injection can be flowed in the producing well being connected with the water injection well.But due to oil reservoir different oil reservoirs it
Between there is anisotropism, and the Different Plane direction of same oil reservoir has anisotropism, frequently can lead to the note of water injection well
Water is with distributing inequality, and the distribution inequality on the in-plane of same oil reservoir on horizontal plane direction so that some
Producing well is very few because water injection rate distributes, it is possible that the problem of yield declines, and other producing wells distributed because of water injection rate
It is more and strata pressure is excessive, in fact it could happen that the dangerous situation such as blowout.In order to which guidance technology personnel are to the reasonable water filling of water injection well, need badly
A kind of water injection rate split point method come it is accurate determine the water injection rate of water injection well in different directions split a point ratio.
The water injection rate of generally use splits point method and splits a point method, the key step of this method for formation capacity in the prior art
It is：First, the permeability and effective thickness of each oil reservoir are obtained；Then, by a permeability for oil reservoir and multiplying for effective thickness
Formation capacity of the product as the oil reservoir；Finally, by the formation capacity of the oil reservoir and the ratio of the formation capacity sum of each oil reservoir
Value splits score value as water injection rate on the oil reservoir, so as to, determine water injection rate in vertical direction split a point ratio.Due to water filling
Amount to split point result not only relevant with the permeability and effective thickness of oil reservoir, it is also relevant with dynamic parameter, for example, oil reservoir is aqueous
Moisture content of certain depth etc. in saturation degree, producing well, so splitting water filling determined by point method using existing formation capacity
The degree of accuracy for splitting point result of amount may be relatively low.
The content of the invention
The purpose of the embodiment of the present application is to provide a kind of water injection rate and splits a point method and device, to improve the standard that water injection rate is split point
Exactness.
In order to solve the above technical problems, a kind of water injection rate of the embodiment of the present application offer is split a point method and device and is realized in
's：
A kind of water injection rate splits a point method, there is provided the static log data of purposeful oil reservoir block, the purpose oil reservoir block
Including：Multiple oil reservoirs, multiple water injection wells and multiple producing wells；Also it is respectively provided with dynamic creation data and the institute of the water injection well
State the dynamic creation data of producing well；The dynamic creation data of the producing well includes：Elapsed time, the full well of the actual measurement of producing well
Liquid output, producing well preset reference depth actual measurement flowing bottomhole pressure (FBHP) and actual measurement moisture content, and the full well of actual measurement of producing well
Moisture content；Methods described includes：
According to the dynamic data of each water injection well and the dynamic data of each producing well, the purpose oil is determined
Multiple flooding units of Tibetan area block；Wherein, the flooding unit represents the note that the water injection well being interconnected and producing well are formed
Adopt combination；
For specifying flooding unit in the multiple flooding unit, according to the static log data, the water injection well
The dynamic data of dynamic data and the producing well, determine to specify the water injection rate of water injection well respectively to exist in the specified flooding unit
That is distributed on each oil reservoir initial vertical splits score value；
According to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well, it is determined that
The specified water injection well is split point by the oil reservoir initial plane that each producing well distributes into the specified flooding unit respectively
Value；
Initial vertical score value is split based on described and the initial plane splits score value, and the full well Liquid output of the actual measurement and institute
The full well moisture content of actual measurement is stated, determines that the target that the water injection rate of the specified water injection well distributes on each oil reservoir respectively is vertical
Score value is split, and determines that each producing well distributes the specified water injection well into the specified flooding unit respectively by an oil reservoir
Objective plane split score value.
It is described according to the dynamic data of each water injection well and the dynamic number of each producing well in preferred scheme
According to, multiple flooding units of the purpose oil reservoir block are determined, including：
By the full well Liquid output of actual measurement corresponding to an elapsed time of producing well one, and the actual measurement well of preset reference depth
Underflow is pressed and actual measurement moisture content is as reference data sequence, and by target water injection well elapsed time in the multiple water injection well
The actual measurement flowing bottomhole pressure (FBHP) of the full well water injection rate of corresponding actual measurement and preset reference depth data sequence as a comparison；
Just value conversion is carried out to the reference data sequence and the correction data sequence respectively；
Calculate it is described just value conversion after reference data sequence in any measured data with it is described just value conversion after
The absolute value of difference in correction data sequence between any measured data, obtain absolute difference data sequence；
Based on the absolute difference data sequence, the target water injection well degree of association corresponding with the producing well is determined；
By the degree of association corresponding with the producing well be more than specified associations threshold value target water injection well be included in using the producing well as
The flooding unit at center.
In preferred scheme, the specified associations threshold value is 0.5.
It is described to be based on the absolute difference data sequence in preferred scheme, determine the target water injection well and the producing well pair
The degree of association answered, including：
Calculate incidence coefficient corresponding with each data difference in the absolute difference data sequence；
Using the average value of each incidence coefficient as the target water injection well degree of association corresponding with the producing well.
In preferred scheme, calculated using following formula and associate system in the absolute difference data sequence corresponding to a data
Number：
In formula, A represents the incidence coefficient, and Δ represents a data in the absolute difference data sequence, ΔminTable
Show the data that parameter value is minimum in the absolute difference data sequence, ΔmaxRepresent that parameter value is maximum in the absolute difference data sequence
Data.
It is described according to the static log data, the dynamic data of the water injection well and the producing well in preferred scheme
Dynamic data, determine to specify the water injection rate of water injection well respectively to distribute on each oil reservoir in the specified flooding unit
It is initial it is vertical split score value, including：
For any specified flooding unit in the multiple flooding unit, when specified water injection well in the specified flooding unit
Dynamic data when not including intake profile test result, based on permeability and effective thickness in the static log data, really
That specifies that the water injection rate of water injection well distributes on each oil reservoir respectively in the fixed specified flooding unit initial vertical splits point
Value；
When specifying the dynamic data of water injection well to include intake profile test result in the specified flooding unit, by described in
Water filling of the relative injectivity of multiple oil reservoir middle finger stand oil layers as the specified water injection well described in intake profile test result
Measure distributed on the specified oil reservoir initial and vertical split score value.
In preferred scheme, based on it is described it is initial it is vertical split score value and the initial plane splits score value, and the actual measurement is complete
Well Liquid output and the full well moisture content of actual measurement, determine that the water injection rate of the specified water injection well divides on each oil reservoir respectively
The target matched somebody with somebody is vertical to split score value, and determine the specified water injection well by an oil reservoir respectively into the specified flooding unit it is each
The objective plane of individual producing well distribution splits score value, including：
Based on it is described it is initial it is vertical split score value and the initial plane splits score value, the prediction for calculating each producing well is complete
Well Liquid output and the full well moisture content of prediction；
Establish the full well Liquid output of prediction of each producing well and predict the predictive data set that full well moisture content is formed
Close, and establish the full well Liquid output of actual measurement of each producing well and survey the measured data collection that full well moisture content is formed
Close；
Calculate the relative error between the prediction data set and the measured data set；
When the relative error is less than specification error tolerance value, initial vertical score value target as corresponding to is split using described
It is vertical to split score value, and the initial plane is split into score value objective plane as corresponding to and splits score value；Or missed relatively when described
Difference is when being more than or equal to the specification error tolerance value, and initial vertical score value is split and the initial plane splits score value progress to described
Correcting process, obtain it is new it is vertical split score value and new plane splits score value, new vertical to split score value and institute according to described
State new plane and split the relative error that score value correspondingly obtains and be less than the specification error tolerance value, and new vertical split described point
Value and the new plane split score value and split score value and objective plane splits score value respectively as target is vertical.
In preferred scheme, the span of the specification error tolerance value is 0.001~0.01.
In preferred scheme, based on it is described it is initial it is vertical split score value and the initial plane splits score value, and the actual measurement is complete
Well Liquid output and the full well moisture content of actual measurement, determine that the water injection rate of the specified water injection well divides on each oil reservoir respectively
The target matched somebody with somebody is vertical to split score value, and determine the specified water injection well by an oil reservoir respectively into the specified flooding unit it is each
The objective plane of individual producing well distribution splits score value, in addition to：
For any specified flooding unit in the multiple flooding unit, when specified water injection well in the specified flooding unit
Dynamic data when including intake profile test result, by multiple oil reservoir middle finger stand oils described in the intake profile test result
The relative injectivity of layer splits score value as the target that the water injection rate of the specified water injection well distributes on the specified oil reservoir is vertical.
A kind of water injection rate splits separating device, and described device provides the static log data of purpose oil reservoir block, the purpose oil
Tibetan area block includes：Multiple oil reservoirs, multiple water injection wells and multiple producing wells；Described device is also respectively provided with the dynamic of the water injection well
The dynamic creation data of state creation data and the producing well；The dynamic creation data of the producing well includes：Elapsed time, adopt
The actual measurement flowing bottomhole pressure (FBHP) and actual measurement moisture content of the full well Liquid output of actual measurement of oil well, the preset reference depth of producing well, and adopt
The full well moisture content of actual measurement of oil well；Described device includes：Flooding unit determining module, the initial vertical score value determining module, just of splitting
Beginning plane splits score value determining module and target splits score value determining module；Wherein,
The flooding unit determining module, for the dynamic data according to each water injection well and each producing well
Dynamic data, determine multiple flooding units of the purpose oil reservoir block；Wherein, the flooding unit represents what is be interconnected
The note that water injection well and producing well are formed adopts combination；
It is described it is initial it is vertical split score value determining module, for for specifying flooding unit, root in the multiple flooding unit
According to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well, the specified note is determined
Adopt specify the water injection rate of water injection well to be distributed respectively on each oil reservoir in unit initial and vertical split score value；
The initial plane splits score value determining module, for according to the static log data, the dynamic of the water injection well
The dynamic data of data and the producing well, determine the specified water injection well by an oil reservoir respectively to the specified flooding unit
In the initial plane of each producing well distribution split score value；
The target splits score value determining module, for initial vertical splitting score value and the initial plane is split point based on described
Value, and the full well Liquid output of the actual measurement and the full well moisture content of actual measurement, determine the water injection rate difference of the specified water injection well
The target distributed on each oil reservoir is vertical to split score value, and determines the specified water injection well by an oil reservoir respectively to institute
The objective plane for stating each producing well distribution in specified flooding unit splits score value.
The embodiment of the present application provides a kind of water injection rate and splits a point method and device, according to the dynamic number of each water injection well
According to the dynamic data with each producing well, it may be determined that multiple flooding units of the purpose oil reservoir block；Wherein, it is described
Flooding unit represents that the note that the water injection well being interconnected and producing well are formed adopts combination；For the multiple flooding unit middle finger
Determine flooding unit, can according to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well
To determine that it is initial vertical that the water injection rate of specified water injection well in the specified flooding unit distributes on each oil reservoir respectively
Split score value；, can be true according to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well
The fixed specified water injection well is split by the oil reservoir initial plane that each producing well distributes into the specified flooding unit respectively
Score value；Based on it is described it is initial it is vertical split score value and the initial plane splits score value, and the full well Liquid output of the actual measurement and described
Survey full well moisture content, it may be determined that the target that the water injection rate of the specified water injection well distributes on each oil reservoir respectively is hung down
To splitting score value, and it can determine that the specified water injection well passes through an oil reservoir each oil recovery into the specified flooding unit respectively
The objective plane of well distribution splits score value.Consider dynamic creation data and split the incidence relation of score value with water injection rate, can be further
Improve the degree of accuracy that water injection rate is split point.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart that a kind of water injection rate of the application splits point embodiment of the method；
Fig. 2 is art methods to be respectively adopted in the embodiment of the present application and the application method correspondingly obtains predicting that full well contains
The contrast schematic diagram of water rate result；
Fig. 3 is the composition structure chart that the application water injection rate splits separating device embodiment.
Embodiment
The embodiment of the present application provides a kind of water injection rate and splits a point method and device.
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
The embodiment of the present application provides a kind of water injection rate and splits a point method.Wherein, methods described provides purposeful reservoir region block
Static log data, the purpose oil reservoir block include：Multiple water injection wells and multiple producing wells；Also it is respectively provided with the water filling
The dynamic creation data of well and the dynamic creation data of the producing well；The dynamic creation data of the water injection well includes：Water filling
The full well water injection rate of actual measurement of well and the actual measurement flowing bottomhole pressure (FBHP) of preset reference depth；The dynamic creation data bag of the producing well
Include：The full well Liquid output of actual measurement of producing well, and the actual measurement flowing bottomhole pressure (FBHP) of the preset reference depth of producing well and survey it is aqueous
Rate.
In one embodiment, the purpose oil reservoir block can include：Multiple oil reservoirs.The oil reservoir can be had
Certain thickness interval.The purpose oil reservoir block can also include：Multiple water injection wells and multiple producing wells.
In one embodiment, can by way of drilling well and data acquisition mode, obtain the purpose oil reservoir
The static log data of block.The static log data can include：Water filling well location corresponding with the multiple oil reservoir difference
Put the static physical data with producing well opening position, and the position associated with the multiple water injection well and the multiple producing well
Put data.The static physical data can include：Permeability, effective thickness, porosity, water saturation, injection water it is viscous
Viscosity of degree and crude oil etc..The position data can include：The hole diameter of the hole diameter of the water injection well, the producing well, and
Distance between injection-production well.Distance can represent that any of the multiple water injection well water injection well is adopted with the multiple between the injection-production well
The distance between any of oil well producing well.
For example, table 1 is water injection well position corresponding with part oil reservoir difference and producing well opening position in the embodiment of the present application
Static physical data.
1 static physical data of table
By way of in-situ data collection, the dynamic creation data of the water injection well and the oil recovery can be obtained respectively
The dynamic creation data of well.The dynamic creation data of the water injection well can include：Elapsed time, the full well note of the actual measurement of water injection well
The actual measurement flowing bottomhole pressure (FBHP) of water and preset reference depth.Wherein, when a certain elapsed time acquisition can be corresponded to the actual measurement
Between the full well water injection rate of actual measurement of one-to-one water injection well and the actual measurement flowing bottomhole pressure (FBHP) of preset reference depth.The producing well
Dynamic creation data can include：Elapsed time, the full well Liquid output of actual measurement of producing well, the preset reference depth of producing well
Survey flowing bottomhole pressure (FBHP) and actual measurement moisture content, and the full well moisture content of actual measurement of producing well.Wherein, wherein, in a certain elapsed time
It can correspond to and obtain and the full well Liquid output of actual measurement of the elapsed time one-to-one producing well, the preset reference depth of producing well
The actual measurement flowing bottomhole pressure (FBHP) and actual measurement moisture content at place, and the full well moisture content of actual measurement of producing well.
When to dispensing well progress intake profile test in the middle part of the multiple water injection well, the dynamic of the fractional water flooding well
Creation data can also include：Intake profile test result.The intake profile test result can be represented corresponding to water injection well
The relative injectivity and injection index of different oil reservoirs.Wherein, the relative injectivity of different oil reservoirs corresponding to water injection well can conduct
The water injection rate of water injection well splits score value on different oil reservoirs.
For example, table 2 and table 3 are the dynamic creation data of producing well and water injection well in the embodiment of the present application respectively.Table 4 is this
Apply for the intake profile test result of water injection well in embodiment.
The dynamic creation data of the producing well of table 2
The dynamic creation data of the water injection well of table 3
The intake profile test result of the water injection well of table 4
Fig. 1 is the flow chart that a kind of water injection rate of the application splits point embodiment of the method.As shown in figure 1, the water injection rate is split point
Method, comprise the following steps.
Step S101：According to the dynamic data of each water injection well and the dynamic data of each producing well, it is determined that
Multiple flooding units of the purpose oil reservoir block.
In one embodiment, the purpose oil reservoir block can generally include multiple flooding units.The note adopts list
Member can represent that the note that interconnected water injection well and producing well are formed adopts combination.Specifically, the flooding unit can be with table
Show that the note being made up of first producing well, multiple water injection wells being connected with first producing well is adopted to combine.When described
When first producing well can be the producing well, second producing well can be the water injection well.In this way, the flooding unit
It can represent to be adopted by the note that a producing well, multiple water injection wells being connected with the producing well are formed and combine, i.e., with producing well
Centered on note adopt combination.Or when first producing well is the water injection well, second producing well can be described
Producing well.In this way, the flooding unit can be represented by a water injection well, multiple producing well institute structures being connected with the water injection well
Into note adopt combination, i.e., the note centered on water injection well adopts combination.
In one embodiment, can be with according to the dynamic data of the water injection well and the dynamic data of the producing well
Determine multiple flooding units of the purpose oil reservoir block.Specifically, can will be real corresponding to an elapsed time of producing well one
Full well Liquid output, and the actual measurement flowing bottomhole pressure (FBHP) of preset reference depth and actual measurement moisture content are surveyed as reference data sequence.Can
So that full well water injection rate and preset reference depth will be surveyed corresponding to target water injection well elapsed time in the multiple water injection well
Actual measurement flowing bottomhole pressure (FBHP) data sequence as a comparison.The target water injection well can be any water filling in the multiple water injection well
Well.Just value conversion can be carried out to the reference data sequence and the correction data sequence respectively.It can calculate described first
It is any in correction data sequence after any measured data converts with the just value in reference data sequence after value conversion
The absolute value of difference between measured data, absolute difference data sequence can be obtained., can be with based on the absolute difference data sequence
Determine the target water injection well degree of association corresponding with the producing well.The degree of association can be used for judging the target water injection well
Whether it is connected with the producing well, you can for judging whether the target water injection well being included in centered on the producing well
Flooding unit.The flooding unit that the target water injection well for meeting following conditions can be included in centered on the producing well：The mesh
The mark well degree of association corresponding with the producing well is more than specified associations threshold value.The specified associations threshold value can be 0.5.
In one embodiment, initial value can be carried out to the reference data sequence and the correction data sequence respectively
Change conversion.Specifically, the reference data sequence and the correction data sequence are ranked up according to specified rule.The finger
Set pattern can be then elapsed time order.Can be by the parameter value of each measured data in the reference data sequence after the sequence
The measured data of first, is obtained corresponding to the reference data sequence in reference data sequence after difference divided by the sequence
First value result.Can be by the parameter value difference of each measured data in the correction data sequence after the sequence divided by the row
The measured data of first in correction data sequence after sequence, obtain just value result corresponding to the correction data sequence.
In one embodiment, based on the absolute difference data sequence, the target water injection well and the producing well are determined
The corresponding degree of association.It can specifically include, pass corresponding with each data difference in the absolute difference data sequence can be calculated
Contact number.Can be using the average value of each incidence coefficient as target water injection well association corresponding with the producing well
Degree.
In one embodiment, following formula can be used to calculate a data in the absolute difference data sequence corresponding
Incidence coefficient：
In formula (1), A represents the incidence coefficient, and Δ represents a data in the absolute difference data sequence, Δmin
Represent the data that parameter value is minimum in the absolute difference data sequence, ΔmaxRepresent that parameter value is most in the absolute difference data sequence
Big data.
For example, table 5 is reference data sequence and correction data sequence in the embodiment of the present application.Table 6 is that the application is implemented
The result after just value conversion is carried out to the measured data of table 5 in example.Table 7 is that the result based on table 6 in the embodiment of the present application obtains
The absolute difference data sequence arrived.Table 8 be the absolute difference data sequence based on table 7 be calculated with each data in table 7 point
Not corresponding incidence coefficient.Can be with the average value of all incidence coefficients in computational chart 8, and using the average value as water filling in table 5
The degree of association in well and table 5 between producing well.Because the average value being calculated is more than default correlation threshold (0.5), so can
By the flooding unit being included in the water injection well in table 5 centered on the producing well in table 5.
The reference data sequence of table 5 and correction data sequence
Result after the just value conversion of table 6
The absolute difference data sequence of table 7
The incidence coefficient of table 8
Step S102：For specifying flooding unit in the multiple flooding unit, according to the static log data, described
The dynamic data of the dynamic data of water injection well and the producing well, determine to specify the water filling of water injection well in the specified flooding unit
Measure distributed respectively on each oil reservoir initial and vertical split score value.
In one embodiment, for any specified flooding unit in the multiple flooding unit, when the specified note
Adopt and the dynamic data of water injection well is specified in unit when not including intake profile test result, based on being oozed in the static log data
Saturating rate and effective thickness, can split a point method using formation capacity, determine to specify the note of water injection well in the specified flooding unit
What water was distributed on each oil reservoir respectively initial vertical splits score value.The specified water injection well can be the flooding unit
In any water injection well.Further, the initial vertical score value of splitting determined using above-mentioned steps can be used as the specified note
Well is corresponding when originating water filling initial vertical to split score value.Using the target correspondingly obtained using step S104 it is vertical split score value as
It is corresponding during the specified water injection well following injected water initial vertical to split score value.
In one embodiment, following formula can be used to determine to specify the note of water injection well in the specified flooding unit
What water was distributed on an oil reservoir initial vertical splits score value：
In formula (2), βinRepresent that the water injection rate of i-th of water injection well in the specified flooding unit divides on n-th of oil reservoir
That matches somebody with somebody initial vertical splits score value, KinRepresent n-th of oil reservoir, i-th of note in specified flooding unit is stated in the static log data
The permeability of well opening position, HinRepresent n-th of oil reservoir, i-th of note in specified flooding unit is stated in the static log data
The effective thickness of well opening position.Wherein, KinHinRepresent in the static log data that n-th of oil reservoir adopts list stating specified note
The formation capacity of i-th of water injection well opening position in member.The βinFollowing conditions can be met：Σnβin=1.
In one embodiment, for any specified flooding unit in the multiple flooding unit, when the specified note
, can be by the intake profile test result when adopting the dynamic data of specified water injection well in unit includes intake profile test result
Described in multiple oil reservoir middle finger stand oil layers relative injectivity as the specified water injection well water injection rate in the specified oil reservoir
The initial of upper distribution vertical splits score value.Further, the intake profile test knot that the dynamic data of the specified water injection well includes
Fruit is corresponding with the nominative testing time, and the initial vertical score value of splitting that obtained by intake profile test result can be used as not in institute
It is initially vertical corresponding to the specified water injection well when stating the water injection time in month in year corresponding to the nominative testing time to split score value.
Step S103：According to the dynamic of the static log data, the dynamic data of the water injection well and the producing well
Data, determine the specified water injection well by an oil reservoir respectively each producing well into the specified flooding unit distribute it is initial
Plane splits score value.
In one embodiment, the specified producing well can be any producing well in the specified flooding unit.
In one embodiment, the specified water injection well can be determined by an oil reservoir to the finger using following formula
Determine to specify the initial plane of producing well distribution to split score value in flooding unit：
In formula (3), γinjRepresent the water injection rate of i-th of water injection well in the specified flooding unit by n-th of oil reservoir to
The initial plane of j-th of producing well distribution splits score value, P in the specified flooding unitiwRepresent i-th of water injection well at n-th
The flowing bottomhole pressure (FBHP) of oil reservoir center position, PjoFlowing bottomhole pressure (FBHP) of j-th of the producing well in n-th of oil reservoir center position is represented,
RinjRepresent filtrational resistance of i-th of water injection well by n-th of oil reservoir to j-th of oil-extracting well water injection.Wherein, the γinjIt can expire
Foot states condition：
Wherein, μinwAnd μjnoViscosity of injected water and n-th of oil reservoir are at j-th corresponding to representing n-th of oil reservoir at i-th of water injection well respectively
Viscosity of crude corresponding at producing well, riwAnd rjoThe hole diameter of i-th water injection well and the hole diameter of j-th of producing well, x are represented respectivelyino
And xinfRepresent n-th of oil reservoir in i-th of water injection well position to the distance of the oil-water interface position of n-th of oil reservoir and n-th of oil respectively
Distance of the layer i-th of water injection well position to the oil water contact forward position of n-th of oil reservoir, KinjHinj(r) represent n-th of oil reservoir i-th
Formation capacity between individual water injection well and j-th of producing well at the r of position, C represent that n-th of oil reservoir is adopted in i-th of water injection well and j-th
The profit phase resistance coefficient of opening position between oil well.Wherein it is possible to the x is obtained by Logging data analysisinoAnd xinf.The oil
Aqueous phase resistance coefficient C is associated with the water saturation at the oil water contact advanced position of n-th of oil reservoir.The profit phase resistance system
Number C can obtain according to the B-L theoretical calculations that oil reservoir development is commonly used.
Wherein, KinwHinwAnd KnjoHnjoFormation capacity and n-th oil reservoir of n-th of oil reservoir in i-th of water injection well opening position are represented respectively
In the formation capacity of j-th of producing well opening position, DijRepresent the distance between i-th of water injection well and j-th producing well.
Step S104：Initial vertical score value is split based on described and the initial plane splits score value, and the full well of actual measurement
Liquid output and the full well moisture content of actual measurement, determine that the water injection rate of the specified water injection well distributes on each oil reservoir respectively
Target it is vertical split score value, and determine the specified water injection well by an oil reservoir respectively into the specified flooding unit it is each
The objective plane of producing well distribution splits score value.
In one embodiment, for any specified flooding unit in the multiple flooding unit, when the specified note
, can be by the intake profile test result when adopting the dynamic data of specified water injection well in unit includes intake profile test result
Described in multiple oil reservoir middle finger stand oil layers relative injectivity as the specified water injection well water injection rate in the specified oil reservoir
The target of upper distribution is vertical to split score value.
In one embodiment, based on it is described it is initial it is vertical split score value and the initial plane splits score value, can calculate
The full well Liquid output of prediction and the full well moisture content of prediction of each producing well.The prediction that each producing well can be established is complete
The prediction data set that well Liquid output and the full well moisture content of prediction are formed, and the actual measurement of each producing well can be established
The measured data set that full well Liquid output and the full well moisture content of actual measurement are formed.The prediction data set and the measured data
Set can be one-dimensional vector.Missing relatively between the prediction data set and the measured data set can be calculated
Difference.When the relative error is less than specification error tolerance value, initial vertical score value target as corresponding to can be split using described
It is vertical to split score value, and the initial plane is split into score value objective plane as corresponding to and splits score value.When the relative error is big
When the specification error tolerance value, initial vertical score value can be split and the initial plane is split score value and carried out to described
Correcting process, obtain it is new it is vertical split score value and new plane splits score value, new vertical to split score value and institute according to described
State new plane and split the relative error that score value correspondingly obtains and be less than the specification error tolerance value, and new vertical split described point
Value and the new plane split score value and split score value and objective plane splits score value respectively as target is vertical.The specification error tolerance limit
The span of value can be 0.001~0.01.
In one embodiment, based on it is described it is initial it is vertical split score value and the initial plane splits score value, calculate each
The full well Liquid output of prediction and the full well moisture content of prediction of the producing well.It can specifically include, following formula can be used to calculate
The full well Liquid output of prediction of producing well is specified in the multiple producing well：
In formula (4), QjRepresent the full well Liquid output of prediction of j-th of producing well in the multiple producing well, WinjRepresent with
I-th of water injection well is distributed by n-th of oil reservoir to j-th of producing well in flooding unit centered on j-th of producing well
Total water injection rate.The water of specified amount is generally injected to specified producing well, the specified producing well can be corresponding with identical specified amount
Liquid output.Wherein,Wherein, wt,injRepresent i-th of water filling in water injection time t
Well passes through n-th of oil reservoir water injection rate that j-th of producing well distributes into the specified flooding unit, wiRepresent i-th of water injection well
Full well water injection rate, βinRepresent that the water injection rate of i-th of water injection well distributes on n-th of oil reservoir initial vertical splits score value, γinj
Represent that the initial plane that the water injection rate of i-th of water injection well is distributed by n-th of oil reservoir to j-th of producing well splits score value.It can adopt
The full well moisture content of prediction that producing well is specified in the multiple producing well is calculated with following formula：
In formula (5), FjRepresent the full well moisture content of prediction of j-th of producing well in the multiple producing well, finjRepresent the
The moisture content that j producing well is added up by n-th of oil reservoir from i-th of water injection well.Wherein, the finjWith the Winj, n-th oil
Effective thickness of the porosity, n-th of oil reservoir of layer between i-th of water injection well and j-th of producing well at the r of position is associated.
In one embodiment, following formula can be used to characterize the prediction data set：
In formula (6), one-dimensional vector Y represents the prediction data set, Q1And Q2Producing well 1 and producing well 2 are represented respectively
The full well Liquid output of prediction, F1And F2The full well moisture content of prediction of producing well 1 and producing well 2 is represented respectively.
In one embodiment, following formula can be used to characterize the measured data set：
In formula (7), one-dimensional vector y represents the measured data set, q1And q2Producing well 1 and producing well 2 are represented respectively
The full well Liquid output of actual measurement, f1And f2The full well moisture content of actual measurement of producing well 1 and producing well 2 is represented respectively.
In one embodiment, following formula can be used to calculate the prediction data set and the measured data collection
Relative error between conjunction：
In formula (8), M represents the relative error, QkAnd FkK-th of producing well in the multiple producing well is represented respectively
The full well Liquid output of prediction and predict full well moisture content, qkAnd fkThe full well Liquid output of actual measurement and reality of k-th of producing well are represented respectively
Full well moisture content is surveyed, m represents the number of producing well.
In one embodiment, initial vertical score value is split and the initial plane splits score value and is modified place to described
Reason, obtain new vertical splitting score value and new plane splits score value.It can specifically include, the method for Monte Carlo can be used to generate
Multiple random numbers.The span of the random number is 0~1.Based on the random number, initial vertical score value and institute are split to described
State initial plane and split score value and be modified processing, can obtain new vertical splitting score value and new plane splits score value.For example, can be with
Characterized by following formula and described initial vertical split score value and the initial plane splits that score value formed that initial split point is gathered：
In formula (9), X0Represent described and initially split a point set, βinRepresent the water injection rate of i-th of water injection well in n-th of oil reservoir
The initial of upper distribution vertical splits score value, γinjRepresent the water injection rate of i-th of water injection well by n-th of oil reservoir to j-th of producing well
The initial plane of distribution splits score value.Wherein, the initial number for initially splitting score value split point set and included is N.It can adopt
The method of oily Monte Carlo generates N number of random number, respectively z1、z2、…、zN., can will be described initial based on this N number of random number
Split a point set X0It is modified to and splits a point setWherein, it is initially vertical to split score value βinIt can correspond to and be modified to
βin', initial plane splits score value γinjIt can correspond to and be modified to γinj'.A point set X can be split to revised0' be normalized
Processing, to cause the βin' following conditions can be met：Σnβin=1, and the γinj' following conditions can be met：Σj
γinj'=1, and splitting point after normalized is vertically split into score value newly vertical corresponding to asing in set splits score value, and
A set midplane of splitting point after normalized is split score value and splits score value as new plane.
For example, Fig. 2 is art methods to be respectively adopted in the embodiment of the present application and the application method is correspondingly predicted
The contrast schematic diagram of full well moisture content result.Abscissa and ordinate in Fig. 2 are respectively the full well of time and a certain producing well
Moisture content.Square frame is the full well moisture content corresponding data point of actual measurement of the producing well in Fig. 2.It is as shown in Fig. 2 square compared with prior art
Method, water injection rate is carried out using the application method and splits point corresponding obtained prediction result and actual measured results relatively, it is accurate
Exactness is higher.
The water injection rate splits a point embodiment of the method, according to the dynamic data of each water injection well and each producing well
Dynamic data, it may be determined that multiple flooding units of the purpose oil reservoir block；Wherein, the flooding unit represents mutually to interconnect
The note that logical water injection well and producing well is formed adopts combination；For specifying flooding unit in the multiple flooding unit, according to institute
State the dynamic data of static log data, the dynamic data of the water injection well and the producing well, it may be determined that the specified note
Adopt specify the water injection rate of water injection well to be distributed respectively on each oil reservoir in unit initial and vertical split score value；According to described quiet
The dynamic data of state log data, the dynamic data of the water injection well and the producing well, it may be determined that the specified water injection well
Score value is split by the oil reservoir initial plane that each producing well distributes into the specified flooding unit respectively；Based on described initial
It is vertical to split score value and the initial plane splits score value, and the full well Liquid output of the actual measurement and the full well moisture content of actual measurement, can
Score value is split to determine that target that the water injection rate of the specified water injection well distributes on each oil reservoir respectively is vertical, and can be with
Determine that the specified water injection well passes through the oil reservoir objective plane that each producing well distributes into the specified flooding unit respectively
Split score value.Consider dynamic creation data and water injection rate and split the incidence relation of score value, can further improve what water injection rate was split point
The degree of accuracy.
Fig. 3 is the composition structure chart that the application water injection rate splits separating device embodiment.The water injection rate is split separating device and can carried
For the static log data of purpose oil reservoir block, the purpose oil reservoir block includes：Multiple water injection wells and multiple producing wells.It is described
Water injection rate splits the dynamic production that separating device can also be respectively provided with the dynamic creation data and the producing well of the water injection well
Data.It can include as shown in figure 3, the water injection rate splits separating device：Flooding unit determining module 100, initial vertical split score value
Determining module 200, initial plane split score value determining module 300 and target splits score value determining module 400.
The flooding unit determining module 100, it can be used for the dynamic data according to each water injection well and each institute
The dynamic data of producing well is stated, determines multiple flooding units of the purpose oil reservoir block；Wherein, the flooding unit can be with table
Show that the note that interconnected water injection well and producing well are formed adopts combination.
It is described it is initial it is vertical split score value determining module 200, can be used for being directed in the multiple flooding unit and specify note to adopt
Unit, according to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well, it is determined that described
Specify the water injection rate of water injection well to be distributed respectively on each oil reservoir in flooding unit initial is specified vertical to split score value.
The initial plane splits score value determining module 300, can be used for according to the static log data, the water injection well
Dynamic data and the producing well dynamic data, determine the specified water injection well by an oil reservoir respectively to the specified note
The initial plane for adopting each producing well distribution in unit splits score value.
The target splits score value determining module 400, can be used for based on the initial vertical score value and described initial flat split
Score value, and the full well Liquid output of the actual measurement and the full well moisture content of actual measurement are split in face, determine the water filling of the specified water injection well
Measure that the target distributed respectively on each oil reservoir is vertical to split score value, and determine that the specified water injection well passes through an oil reservoir point
The objective plane of each producing well distribution splits score value not into the specified flooding unit.
The water injection rate splits separating device embodiment, and with the water injection rate to split point embodiment of the method corresponding, it is possible to achieve this Shen
Embodiment of the method please, and the technique effect of adquisitiones embodiment.
In the 1990s, the improvement for a technology can clearly distinguish be on hardware improvement (for example,
Improvement to circuit structures such as diode, transistor, switches) or software on improvement (improvement for method flow).So
And as the development of technology, the improvement of current many method flows can be considered as directly improving for hardware circuit.
Designer nearly all obtains corresponding hardware circuit by the way that improved method flow is programmed into hardware circuit.Cause
This, it cannot be said that the improvement of a method flow cannot be realized with hardware entities module.For example, PLD
(Programmable Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate
Array, FPGA)) it is exactly such a integrated circuit, its logic function is determined by user to device programming.By designer
Voluntarily programming comes a digital display circuit " integrated " on a piece of PLD, without asking chip maker to design and make
Special IC chip.Moreover, nowadays, substitution manually makes IC chip, this programming is also used instead mostly " patrols
Volume compiler (logic compiler) " software realizes that software compiler used is similar when it writes with program development,
And the source code before compiling also write by handy specific programming language, this is referred to as hardware description language
(Hardware Description Language, HDL), and HDL is also not only a kind of, but have many kinds, such as ABEL
(Advanced Boolean Expression Language)、AHDL(Altera Hardware Description
Language)、Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL
(Java Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby
Hardware Description Language) etc., VHDL (Very-High-Speed are most generally used at present
Integrated Circuit Hardware Description Language) and Verilog2.Those skilled in the art
It will be apparent to the skilled artisan that only need method flow slightly programming in logic and being programmed into integrated circuit with above-mentioned several hardware description languages
In, it is possible to it is readily available the hardware circuit for realizing the logical method flow.
It is also known in the art that in addition to realizing controller in a manner of pure computer readable program code, it is complete
Entirely can by by method and step carry out programming in logic come controller with gate, switch, application specific integrated circuit, may be programmed
The form of logic controller and embedded microcontroller etc. realizes identical function.Therefore this controller is considered one kind
Hardware component, and it is used to realize that the device of various functions can also to be considered as the structure in hardware component to what is included in it.Or
Even, it not only can be able to will be the software module of implementation method for realizing that the device of various functions is considered as but also can be Hardware Subdivision
Structure in part.
Device that above-described embodiment illustrates, module, it can specifically be realized by computer chip or entity, or by with certain
The product of kind of function is realized.
For convenience of description, it is divided into various modules during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each module can be realized in same or multiple softwares and/or hardware during application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical scheme essence of the application
On the part that is contributed in other words to prior art can be embodied in the form of software product, in a typical configuration
In, computing device includes one or more processors (CPU), input/output interface, network interface and internal memory.The computer is soft
Part product can include some instructions make it that a computer equipment (can be personal computer, server, or network
Equipment etc.) perform method described in some parts of each embodiment of the application or embodiment.The computer software product can
To be stored in internal memory, internal memory may include the volatile memory in computer-readable medium, random access memory
(RAM) and/or the form such as Nonvolatile memory, such as read-only storage (ROM) or flash memory (flash RAM).Internal memory is computer
The example of computer-readable recording medium.Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by
Any method or technique come realize information store.Information can be computer-readable instruction, data structure, the module of program or its
His data.The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only storage
(ROM), Electrically Erasable Read Only Memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc are read-only
Memory (CD-ROM), digital versatile disc (DVD) or other optical storages, magnetic cassette tape, tape magnetic rigid disk storage or
Other magnetic storage apparatus or any other non-transmission medium, the information that can be accessed by a computing device available for storage.According to
Herein defines, and computer-readable medium does not include of short duration computer readable media (transitory media), such as modulation
Data-signal and carrier wave.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for device
For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
The application can be used in numerous general or special purpose computing system environments or configuration.Such as：Personal computer, clothes
Business device computer, handheld device or portable set, laptop device, multicomputer system, the system based on microprocessor, put
Top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer including any of the above system or equipment
DCE etc..
The application can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes performing particular task or realizes routine, program, object, the group of particular abstract data type
Part, data structure etc..The application can also be put into practice in a distributed computing environment, in these DCEs, by
Task is performed and connected remote processing devices by communication network.In a distributed computing environment, program module can be with
In the local and remote computer-readable storage medium including storage device.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application have it is many deformation and
Change is without departing from spirit herein, it is desirable to which appended claim includes these deformations and changed without departing from the application's
Spirit.
Claims (10)
1. a kind of water injection rate splits a point method, it is characterised in that provides the static log data of purposeful reservoir region block, the purpose
Oil reservoir block includes：Multiple oil reservoirs, multiple water injection wells and multiple producing wells；Also it is respectively provided with the dynamic production of the water injection well
The dynamic creation data of data and the producing well；The dynamic creation data of the producing well includes：Elapsed time, producing well
Survey full well Liquid output, producing well preset reference depth actual measurement flowing bottomhole pressure (FBHP) and actual measurement moisture content, and producing well
Survey full well moisture content；Methods described includes：
According to the dynamic data of each water injection well and the dynamic data of each producing well, the purpose reservoir region is determined
Multiple flooding units of block；Wherein, the flooding unit represents that the note that the water injection well being interconnected and producing well are formed adopts group
Close；
For specifying flooding unit in the multiple flooding unit, according to the static log data, the dynamic of the water injection well
The dynamic data of data and the producing well, determine to specify the water injection rate of water injection well in the specified flooding unit respectively each
That is distributed on the oil reservoir initial vertical splits score value；
According to the dynamic data of the static log data, the dynamic data of the water injection well and the producing well, it is determined that described
Water injection well is specified to split score value by the oil reservoir initial plane that each producing well distributes into the specified flooding unit respectively；
Initial vertical score value is split based on described and the initial plane splits score value, and the full well Liquid output of the actual measurement and the reality
Full well moisture content is surveyed, determines that target that the water injection rate of the specified water injection well distributes on each oil reservoir respectively is vertical and splits point
Value, and determine that the specified water injection well passes through the oil reservoir mesh that each producing well distributes into the specified flooding unit respectively
Mark plane splits score value.
2. a kind of water injection rate according to claim 1 splits a point method, it is characterised in that described according to each water injection well
Dynamic data and each producing well dynamic data, determine multiple flooding units of the purpose oil reservoir block, including：
By the actual measurement shaft bottom stream of the full well Liquid output of actual measurement corresponding to an elapsed time of producing well one, and preset reference depth
Pressure and actual measurement moisture content are corresponding as reference data sequence, and by target water injection well elapsed time in the multiple water injection well
The full well water injection rate of actual measurement and preset reference depth actual measurement flowing bottomhole pressure (FBHP) data sequence as a comparison；
Just value conversion is carried out to the reference data sequence and the correction data sequence respectively；
Calculate any measured data and the contrast after the just value conversion in the reference data sequence after the just value conversion
The absolute value of difference in data sequence between any measured data, obtain absolute difference data sequence；
Based on the absolute difference data sequence, the target water injection well degree of association corresponding with the producing well is determined；
The target water injection well that the degree of association corresponding with the producing well is more than to specified associations threshold value is included in centered on the producing well
Flooding unit.
3. a kind of water injection rate according to claim 2 splits a point method, it is characterised in that the specified associations threshold value is 0.5.
4. a kind of water injection rate according to claim 2 splits a point method, it is characterised in that described to be based on the absolute difference data
Sequence, the target water injection well degree of association corresponding with the producing well is determined, including：
Calculate incidence coefficient corresponding with each data difference in the absolute difference data sequence；
Using the average value of each incidence coefficient as the target water injection well degree of association corresponding with the producing well.
5. a kind of water injection rate according to claim 4 splits a point method, it is characterised in that is calculated using following formula described exhausted
To incidence coefficient corresponding to a data in difference data sequence：
<mrow>
<mi>A</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>&Delta;</mi>
<mrow>
<mi>m</mi>
<mi>i</mi>
<mi>n</mi>
</mrow>
</msub>
<mo>-</mo>
<mn>0.5</mn>
<mo>&times;</mo>
<msub>
<mi>&Delta;</mi>
<mrow>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mrow>
<mrow>
<mi>&Delta;</mi>
<mo>-</mo>
<mn>0.5</mn>
<mo>&times;</mo>
<msub>
<mi>&Delta;</mi>
<mrow>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mrow>
</mfrac>
</mrow>
In formula, A represents the incidence coefficient, and Δ represents a data in the absolute difference data sequence, ΔminRepresent institute
State the data that parameter value is minimum in absolute difference data sequence, ΔmaxRepresent the number that parameter value is maximum in the absolute difference data sequence
According to.
6. a kind of water injection rate according to claim 1 splits a point method, it is characterised in that described according to the static number of logging well
According to, the dynamic data of the water injection well and the dynamic data of the producing well, determine to specify water filling in the specified flooding unit
The water injection rate of well distributed respectively on each oil reservoir it is initial it is vertical split score value, including：
For any specified flooding unit in the multiple flooding unit, when specifying the dynamic of water injection well in the specified flooding unit
When state data do not include intake profile test result, based on permeability and effective thickness in the static log data, institute is determined
State specify the water injection rate of water injection well to be distributed respectively on each oil reservoir in specified flooding unit initial and vertical split score value；
When specifying the dynamic data of water injection well to include intake profile test result in the specified flooding unit, by the water suction
The relative injectivity of multiple oil reservoir middle finger stand oil layers exists as the water injection rate of the specified water injection well described in section plane test result
That is distributed on the specified oil reservoir initial vertical splits score value.
7. a kind of water injection rate according to claim 1 splits a point method, it is characterised in that initial vertical splits score value based on described
Score value, and the full well Liquid output of the actual measurement and the full well moisture content of actual measurement are split with the initial plane, determines described specify
Target that the water injection rate of water injection well distributes on each oil reservoir respectively is vertical to split score value, and determines the specified water injection well
Score value is split by the oil reservoir objective plane that each producing well distributes into the specified flooding unit respectively, including：
Based on it is described it is initial it is vertical split score value and the initial plane splits score value, calculate the full well production of prediction of each producing well
Liquid measure and the full well moisture content of prediction；
Establish the full well Liquid output of prediction of each producing well and predict the prediction data set that full well moisture content is formed, with
And establish the full well Liquid output of actual measurement of each producing well and survey the measured data set that full well moisture content is formed；
Calculate the relative error between the prediction data set and the measured data set；
When the relative error is less than specification error tolerance value, initial vertical to split score value target as corresponding to vertical using described
Score value is split, and the initial plane is split into score value objective plane as corresponding to and splits score value；Or when the relative error is big
When the specification error tolerance value, initial vertical score value is split and the initial plane is split score value and is modified to described
Processing, obtain it is new it is vertical split score value and new plane splits score value, to cause according to the new vertical score value and described new split
Plane split the relative error that score value correspondingly obtains and be less than the specification error tolerance value, and by it is described it is new it is vertical split score value and
The new plane splits score value and splits score value and objective plane splits score value respectively as target is vertical.
8. a kind of water injection rate according to claim 7 splits a point method, it is characterised in that the specification error tolerance value takes
It is 0.001~0.01 to be worth scope.
9. a kind of water injection rate according to claim 1 splits a point method, it is characterised in that initial vertical splits score value based on described
Score value, and the full well Liquid output of the actual measurement and the full well moisture content of actual measurement are split with the initial plane, determines described specify
Target that the water injection rate of water injection well distributes on each oil reservoir respectively is vertical to split score value, and determines the specified water injection well
Score value is split by the oil reservoir objective plane that each producing well distributes into the specified flooding unit respectively, in addition to：
For any specified flooding unit in the multiple flooding unit, when specifying the dynamic of water injection well in the specified flooding unit
When state data include intake profile test result, by multiple oil reservoir middle finger stand oil layers described in the intake profile test result
Relative injectivity splits score value as the target that the water injection rate of the specified water injection well distributes on the specified oil reservoir is vertical.
10. a kind of water injection rate splits separating device, it is characterised in that described device provides the static log data of purpose oil reservoir block,
The purpose oil reservoir block includes：Multiple oil reservoirs, multiple water injection wells and multiple producing wells；Described device is also respectively provided with described
The dynamic creation data of water injection well and the dynamic creation data of the producing well；The dynamic creation data of the producing well includes：
Elapsed time, the full well Liquid output of actual measurement of producing well, producing well preset reference depth actual measurement flowing bottomhole pressure (FBHP) and actual measurement contain
Water rate, and the full well moisture content of actual measurement of producing well；Described device includes：Flooding unit determining module, initial vertical split score value
Determining module, initial plane split score value determining module and target splits score value determining module；Wherein,
The flooding unit determining module, for the dynamic of the dynamic data according to each water injection well and each producing well
State data, determine multiple flooding units of the purpose oil reservoir block；Wherein, the flooding unit represents interconnected water filling
The note that well and producing well are formed adopts combination；
It is described it is initial it is vertical split score value determining module, for for specifying flooding unit in the multiple flooding unit, according to institute
The dynamic data of static log data, the dynamic data of the water injection well and the producing well is stated, determines that the specified note adopts list
That specifies that the water injection rate of water injection well distributes on each oil reservoir respectively in member initial vertical splits score value；
The initial plane splits score value determining module, for the dynamic data according to the static log data, the water injection well
With the dynamic data of the producing well, determine the specified water injection well by an oil reservoir respectively into the specified flooding unit it is each
The initial plane of individual producing well distribution splits score value；
The target splits score value determining module, for based on it is described it is initial it is vertical split score value and the initial plane splits score value, with
And the full well Liquid output of actual measurement and the full well moisture content of actual measurement, determine the water injection rate of the specified water injection well respectively each
The target distributed on the oil reservoir is vertical to split score value, and determines that the specified water injection well is specified to described respectively by an oil reservoir
The objective plane of each producing well distribution splits score value in flooding unit.
Priority Applications (1)
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| CN108397175A (en) * | 2018-01-27 | 2018-08-14 | 东北石油大学 | A kind of method of determining producing well by effect polymer volume |
| CN108729912A (en) * | 2018-04-19 | 2018-11-02 | 中国石油化工股份有限公司 | Production split method suitable for reservoir numerical simulation |
| CN108843302A (en) * | 2018-07-05 | 2018-11-20 | 中国石油天然气股份有限公司 | A kind of gas well yield splits a point method |
| CN110439515A (en) * | 2019-06-24 | 2019-11-12 | 中国石油化工股份有限公司 | Note adopts parameter optimization method and device |
| CN110500083A (en) * | 2019-08-05 | 2019-11-26 | 中国石油天然气股份有限公司 | A kind of oil-water well dynamic connectivity method of discrimination |
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| CN108729912B (en) * | 2018-04-19 | 2022-04-19 | 中国石油化工股份有限公司 | Yield splitting method suitable for numerical reservoir simulation |
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| CN111456695A (en) * | 2019-01-21 | 2020-07-28 | 中国石油天然气股份有限公司 | Layered sandstone reservoir recovery method and device |
| CN111980657B (en) * | 2019-05-22 | 2023-02-10 | 中国石油天然气股份有限公司 | Oil reservoir flow field regulation and control method and device |
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| CN110439515A (en) * | 2019-06-24 | 2019-11-12 | 中国石油化工股份有限公司 | Note adopts parameter optimization method and device |
| CN110500083B (en) * | 2019-08-05 | 2022-05-10 | 中国石油天然气股份有限公司 | Method for judging dynamic connectivity of oil-water well |
| CN110500083A (en) * | 2019-08-05 | 2019-11-26 | 中国石油天然气股份有限公司 | A kind of oil-water well dynamic connectivity method of discrimination |
| CN114165217A (en) * | 2020-09-11 | 2022-03-11 | 中国石油天然气股份有限公司 | Method and device for determining effective permeability, computer equipment and storage medium |
| CN114165217B (en) * | 2020-09-11 | 2023-09-26 | 中国石油天然气股份有限公司 | Method and device for determining effective permeability, computer equipment and storage medium |
| CN112412444A (en) * | 2020-11-20 | 2021-02-26 | 中国石油天然气股份有限公司 | Injection-production communication strength determination method and device, computer equipment and storage medium |
| CN112412444B (en) * | 2020-11-20 | 2023-07-25 | 中国石油天然气股份有限公司 | Injection and production communication strength determining method and device, computer equipment and storage medium |
| CN113605875A (en) * | 2021-08-31 | 2021-11-05 | 中国石油大学(北京) | Well pattern construction method, device and medium for fracture-cavity oil reservoir |
| CN115099539A (en) * | 2022-08-25 | 2022-09-23 | 大庆正方软件科技股份有限公司 | Big data artificial intelligence water injection method based on water absorption profile |
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