CN106837289B - A kind of method and apparatus of determining well location - Google Patents
A kind of method and apparatus of determining well location Download PDFInfo
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- CN106837289B CN106837289B CN201611241854.4A CN201611241854A CN106837289B CN 106837289 B CN106837289 B CN 106837289B CN 201611241854 A CN201611241854 A CN 201611241854A CN 106837289 B CN106837289 B CN 106837289B
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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
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
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Abstract
The application provides a kind of method and apparatus of determining well location.This method comprises: using numerical reservoir simulation method determine current old well development to it is discarded when the first saturation data and the first cumulative oil production；Remaining movable oil in place abundance distribution figure is drawn using current saturation data and default oil deposit parameter；Choose well location of the remaining movable oil in place area for meeting default constraint condition as new well；Using numerical reservoir simulation method determine the corresponding well of current well location map from exploitation to it is discarded when the second saturation data and the second cumulative oil production；Judge whether the difference of the second cumulative oil production and the first cumulative oil production is greater than the new well location threshold value of default cloth；It when the judgment is yes, is no using drafting to the above-mentioned judging result that the second saturation data carries out remaining movable oil in place abundance distribution figure as current saturation data；The well location for determining new well in current well location map is new well well location to be disposed.Reasonable well location can be quickly determined using technical solution provided by the present application.
Description
Technical field
The present invention relates to oil-gas exploration and development technical field more particularly to a kind of method and apparatus of determining well location.
Background technique
During oil-gas exploration and development, can well location correctly select, dispose and adjust, and can be directly related to oil reservoir grow
Can phase steady production and oilfield enterprise obtain preferable economic benefit, therefore, determine that effective and reasonable well location is oil
The key of gas reservoir development success or failure.
The method for determining well location in the prior art mainly may include: regular well pattern well-arranging procedure and based on numerical reservoir mould
The well location of quasi- result data determines method.Wherein, regular well pattern well-arranging procedure is the supposed premise based on Homogeneous Reservoir, with oil
It is larger to hide practical heterogeneity difference.Therefore, many inefficient wells are caused, the particularly disadvantageous economic, high speed in overseas oil enterprise, efficiently
Target.Determine that method is the artificial warp according to the actual geological condition of oil reservoir based on the well location of reservoir numerical simulation result data
It tests and formulates several well pattern schemes, then select an optimal well pattern scheme with reservoir numerical simulation, also utilize oil reservoir at present
The remaining oil saturation distribution map that numerical simulation obtains determines well location, this method to bottom water reservoir or the variation of intermediate zone saturation degree compared with
Big oil reservoir is relatively applicable in, and can easily find oil saturation rich region.But when being applied to edge-wa- ter reservoir, contain after entering net pay zone
Oily oil saturation is small by oil column height and reservoir lithology material properties affect, often takes a significant amount of time and determines proper well location,
Still it is difficult to find out optimal well location.
Therefore, a kind of method that the prior art needs determining well location can quickly determine reasonable well location.
Summary of the invention
The purpose of the application is to provide a kind of method and apparatus of determining well location, can quickly determine reasonable well location,
And then achieve the purpose that high speed, Efficient Development oil gas.
The method and apparatus of determining well location provided by the present application are achieved in that
A kind of method of determining well location, which comprises
S10: the first saturation degree when determining that current old well is discarded from exploitation to oil reservoir using numerical reservoir simulation method
According to the first cumulative oil production, using first saturation data as current saturation data；
S20: remaining movable oil in place abundance distribution figure is drawn using the current saturation data and default oil deposit parameter；
S30: descending in the remaining movable oil in place abundance distribution figure according to the size of remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen, the well location of the new well is added current
Well location map；
S40: the when determining that the corresponding well of current well location map is discarded from exploitation to oil reservoir using numerical reservoir simulation method
Two saturation datas and the second cumulative oil production；
S50: it is new to judge whether the difference of second cumulative oil production and first cumulative oil production is greater than default cloth
Well location threshold value；
S60: it when the result judged is is, using second saturation data as current saturation data, holds
The step of row S20 to S50, until the result that step S50 judges is no；
S70: when the result that step S50 judges is no, determine that the well location of new well in current well location map is to be disposed new
Well well location.
In a preferred embodiment, in the current well location map of determination new well well location be new well well location to be disposed it
Before, the method also includes:
When the result that step S50 judges is no, the well location of current new well is removed in current well location map；
According to the size of remaining movable oil in place, the descending region corresponding to the well location for removing the current new well
Well of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in remaining movable oil in place abundance distribution figure
Position, the step of current well location map being added, executes S40 to S50 the well location of the new well to the result that step S50 judges continuously be
No number is greater than preset times.
In a preferred embodiment, described to draw residue using the current saturation data and default oil deposit parameter
Movable oil in place abundance distribution figure includes:
Using in the current saturation data oil saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
It is close using porosity, oil reservoir effective thickness, the crude oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil volume factor；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
In a preferred embodiment, described to draw residue using the current saturation data and default oil deposit parameter
Movable oil in place abundance distribution figure includes:
Using in the current saturation data water saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
It is close using porosity, oil reservoir effective thickness, the crude oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil volume factor；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
In a preferred embodiment, the default constraint condition includes:
Well and tomography distance, economic limit well space.
A kind of device of determining well location, described device include:
First reservoir numerical simulation processing module, for using numerical reservoir simulation method determine current old well from develop to
The first saturation data and the first cumulative oil production when oil reservoir is discarded, using first saturation data as current saturation degree
Data；
Distribution map drafting module, for drawing remaining moveable oil using the current saturation data and default oil deposit parameter
Reserves abundance distribution map；
First well location chooses module, descending described remaining movable for the size according to remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in oilreserves abundance distribution figure, it will be described
Current well location map is added in the well location of new well；
Second reservoir numerical simulation processing module, for determining that current well location map is corresponding using numerical reservoir simulation method
The second saturation data and the second cumulative oil production when well is discarded from exploitation to oil reservoir；
Data judgment module, for judge second cumulative oil production and first cumulative oil production difference whether
Greater than the new well location threshold value of default cloth；
Data processing module, when result for judging when the data judgment module is is, by the second oil reservoir number
The second saturation data that value simulation process module obtains as the current saturation data in the distribution map drafting module into
The drafting of row residue movable oil in place abundance distribution figure, until the result that the data judgment module judges is no；
Well location determining module, for determining that the well location of new well in current well location map is new well well location to be disposed.
In a preferred embodiment, described device further include:
Well location removes module, when the result for judging when the data judgment module is no, in current well location map
Except the well location of current new well；
Second well location chooses module, descending described current in removal for the size according to remaining movable oil in place
The residue that selection meets default constraint condition in the remaining movable oil in place abundance distribution figure in region corresponding to the well location of new well can
Current well location map is added in the well location of the new well by dynamic well location of the oilreserves area as new well；
Constraints module, for being chosen after current well location map is added in the well location of the new well by module in the second well location, about
Shu Suoshu the second reservoir numerical simulation processing module determines the corresponding well of current well location map from opening using numerical reservoir simulation method
It is sent to the second saturation data and the second cumulative oil production and the data judgment module when oil reservoir is discarded and judges described second
Whether the difference of cumulative oil production and first cumulative oil production is greater than the step of default cloth new well location threshold value to the data
The number that the result of judgment module judgement is continuously no is greater than preset times.
In a preferred embodiment, the distribution map drafting module includes:
First computing unit, for using in the current saturation data oil saturation and corresponding residual oil it is full
Remaining mobile oil saturation is calculated with degree；
Second computing unit, for utilizing porosity, the oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in hiding effective thickness, oil density, oil volume factor；
First distribution map drawing unit, it is rich for drawing remaining movable oil in place according to the remaining movable oil in place abundance
Spend distribution map.
In a preferred embodiment, the distribution map drafting module includes:
Third computing unit, for using in the current saturation data water saturation and corresponding residual oil it is full
Remaining mobile oil saturation is calculated with degree；
4th computing unit, for utilizing porosity, the oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in hiding effective thickness, oil density, oil volume factor；
Second distribution map drawing unit, it is rich for drawing remaining movable oil in place according to the remaining movable oil in place abundance
Spend distribution map.
In a preferred embodiment, the default constraint condition includes:
Well and tomography distance, economic limit well space.
The application is by drawing remaining movable oil in place abundance distribution figure, then, according to the size of remaining movable oil in place,
It is descending that the remaining movable oil in place for meeting default constraint condition is chosen in the remaining movable oil in place abundance distribution figure
Well location of the area as new well can determine remaining movable oil in place enrichment region；Then, it is determined using numerical reservoir simulation method
Saturation data and cumulative oil production when current well location map corresponding well after increasing new well is discarded from exploitation to oil reservoir；By sentencing
Whether increased cumulative oil production, which is greater than the new well location threshold value of default cloth, after the disconnected new well of increase can determine currently the newly superiority and inferiority of well；
Saturation when the result judged is is, when can be discarded the current well location map corresponding well after new well is increased from exploitation to oil reservoir
Degree is according to the drafting for carrying out remaining movable oil in place abundance distribution figure as current saturation data, until the result of above-mentioned judgement is
It is no.In turn, the well location that can determine new well in current well location map is new well well location to be disposed, subsequent, can be to determining
New well well location to be disposed carries out drilling well, it can be ensured that new well yield, tired production and exploiting economy benefit.With prior art phase
Than can quickly determine reasonable well location using technical solution provided by the present application, reduce inefficient well.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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 only this
The some embodiments recorded in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of embodiment of the method for determining well location provided by the present application；
Fig. 2 is the flow chart of another embodiment of the method for determining well location provided by the present application；
Fig. 3 is a kind of embodiment that new well well location is determined in remaining movable oil in place abundance distribution figure provided by the present application
Schematic diagram；
Fig. 4 is another embodiment that new well well location is determined in remaining movable oil in place abundance distribution figure provided by the present application
Schematic diagram；
Fig. 5 is a kind of schematic diagram of the embodiment for the oil saturation distribution map that determining well location utilizes in the prior art；
Fig. 6 is a kind of implementation of the remaining movable oil in place abundance distribution figure utilized using determining well location provided by the present application
The schematic diagram of example；
Fig. 7 is the structural schematic diagram in a kind of embodiment of the device of determining well location provided by the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
The specific implementation of the embodiment of the present application is described in detail with several specific examples below.
Introduce a kind of a kind of embodiment of the method for determining well location of the application first below.Fig. 1 is provided by the present application true
A kind of flow chart of embodiment of the method for the location of well, this application provides the methods as described in embodiment or flow chart to operate step
It suddenly, but based on routine or may include more or less operating procedure without creative labor.It is enumerated in embodiment
Sequence of steps is only one of numerous step execution sequence mode, does not represent and unique executes sequence.In practice be
When system or client production execute, (example can be executed according to embodiment or the execution of method shown in the drawings sequence or parallel
Such as parallel processor or the environment of multiple threads).It is specific as shown in Figure 1, the method may include:
S110: the first saturation degree when determining that current old well is discarded from exploitation to oil reservoir using numerical reservoir simulation method
According to the first cumulative oil production, using first saturation data as current saturation data.
In the embodiment of the present application, can use numerical reservoir simulation method determine current old well from develop discarded to oil reservoir when
The first saturation data and the first cumulative oil production, using first saturation data as current saturation data.Specifically
, it may include when determining that current drilling area is discarded from exploitation to oil reservoir using reservoir numerical simulation software Eclipse, CMG etc.
Cumulative oil production and saturation data.Specifically, the current drilling area may include old wellblock or existing wellblock.Tool
Body, saturation data may include oil saturation or water saturation.
In addition, it should be noted that, reservoir numerical simulation software described in the embodiment of the present application be not limited in it is above-mentioned
Eclipse, CMG can also include in practical applications other reservoir numerical simulation softwares, and the embodiment of the present application is not with above-mentioned
It is limited.
S120: remaining movable oil in place abundance distribution is drawn using the current saturation data and default oil deposit parameter
Figure.
In the embodiment of the present application, it can use the current saturation data and default oil deposit parameter draw remaining moveable oil
Reserves abundance distribution map.
In some embodiments, described to draw remaining moveable oil using the current saturation data and default oil deposit parameter
Reserves abundance distribution map may include:
Using in the current saturation data oil saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
It is close using porosity, oil reservoir effective thickness, the crude oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil volume factor；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
Specifically, using in the current saturation data oil saturation and corresponding residual oil saturation calculate
Following calculation formula can be used to remaining mobile oil saturation:
Somr=So-Sor
In above formula, Somr indicates remaining mobile oil saturation, and the residue mobile oil saturation is decimal；Sor indicates residual
Excess oil saturation degree, the residual oil saturation are decimal；So indicates oil saturation, and the residual oil saturation is decimal.
In further embodiments, described to draw residue movably using the current saturation data and default oil deposit parameter
Oilreserves abundance distribution figure may include:
Using in the current saturation data water saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
It is close using porosity, oil reservoir effective thickness, the crude oil in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil volume factor；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
Specifically, using in the current saturation data water saturation and corresponding residual oil saturation calculate
Following calculation formula can be used to remaining mobile oil saturation:
Somr=1-Sor-Sw
In above formula, Somr indicates remaining mobile oil saturation, and the residue mobile oil saturation is decimal；Sor indicates residual
Excess oil saturation degree, the residual oil saturation are decimal；Sw indicates that water saturation, the water saturation are decimal.
Specifically, using in the remaining mobile oil saturation and default oil deposit parameter porosity, oil reservoir effective thickness,
Remaining movable oil in place abundance, which is calculated, in oil density, oil volume factor to use following calculation formula:
Ω omr=100* Φ * Somr*h* ρo/Bo
In above formula: the remaining movable oil in place abundance of Ω omr expression, 104t/km2；Φ indicates that porosity, the porosity are
Decimal；Somr indicates remaining mobile oil saturation, and the residue mobile oil saturation is decimal；H indicates oil reservoir effective thickness, single
Position is m；ρoIndicate oil density, unit kg/m3；Bo indicates oil volume factor, unit sm3/rm3。
Specifically, porosity, oil reservoir effective thickness, oil density, oil volume factor in the default oil deposit parameter
It can be obtained from the related oil deposit parameter of existing oil reservoir, the residual oil saturation can combine existing associated reservoir object
Property parameter is calculated.
S130: descending in the remaining movable oil in place abundance distribution figure according to the size of remaining movable oil in place
The middle well location for choosing the remaining movable oil in place area for meeting default constraint condition as new well works as the well location addition of the new well
Preceding well location map.
It, can be descending in the remaining moveable oil according to the size of remaining movable oil in place in the embodiment of the present application
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in reserves abundance distribution map, it will be described new
Current well location map is added in the well location of well.Specifically, the default constraint condition may include: well and tomography distance, economic limit
Well spacing.Specifically, the well location map may include the hum pattern of geographical location information, the number information of well and well location information；
Preferably, the well location map can also include remaining movable oil in place abundance distribution information.
Specifically, the well and tomography distance may include new well well location to be developed at a distance from nearest tomography, Ke Yigen
It is determined according to the reliability of specific oil field fault interpretation.The well can be guaranteed that new well is avoided as constraint condition with tomography distance
Tomography, it is ensured that drilling success, and the economic value for thering is certain drainage area to ensure new well, in a specific embodiment
In, the well and tomography distance can be set to 100m to 150m.
Specifically, the economic limit well space may include determining that individual well is averagely produced daily according to input and output budgetary estimate method
The economic limit of oil mass, and the economic limit of single well-controlled recoverable reserves and oil in place is obtained in turn, according to oil in place, contain
The long-pending economic limit with single well-controlled oil in place of pasta, so that it may economy ultimate well spacing density is obtained, according to the economic limit
Well spacing density can determine economic limit well space.Specifically, the economy ultimate well spacing density may include using following meters
Formula is calculated to obtain:
In above formula, A indicates oil area, unit km2；N indicates oil in place, unit 104t；IDIndicate average individual well
It is drilled well to invest, 104Member/well；IBThe average individual well ground investment of expression, 104Member/well；R indicates investment loan Annual Percentage Rate；ER
Oil recovery factor；EKIt indicates that degree (generally taking 0.7-0.8) can be adopted in the development evaluation time limit；Po indicates that crude oil price, unit are
Member/t；O indicates crude oil cost, member/t；T indicates the development evaluation time limit；fmaxIndicate economy ultimate well spacing density, unit well/
km2。
Specifically, above-mentioned oil area, oil in place, average individual well are drilled well investment, average individual well ground investment, money loan
Money Annual Percentage Rate, oil recovery factor, degree, crude oil price, crude oil cost, the development evaluation time limit can be adopted in the development evaluation time limit can be with
It is obtained from the associated parameter data of existing oil reservoir.
S140: the when determining that the corresponding well of current well location map is discarded from exploitation to oil reservoir using numerical reservoir simulation method
Two saturation datas and the second cumulative oil production.
In the embodiment of the present application, after step s 130, it can use numerical reservoir simulation method and determine current well location map
The second saturation data and the second cumulative oil production when corresponding well is discarded from exploitation to oil reservoir.
S150: it is new to judge whether the difference of second cumulative oil production and first cumulative oil production is greater than default cloth
Well location threshold value.
In the embodiment of the present application, after step s 140, it can be determined that second cumulative oil production is tired with described first
Whether the difference of product oil production is greater than the new well location threshold value of default cloth.Specifically, in practical applications, the new well of cloth, which needs to increase, to be thrown
Money, therefore, the new well of cloth a bite need to guarantee to reach a certain number of oil and gas productions, to guarantee returns of investment.The default cloth
New well location threshold value may include according to the management water industry of practical oil price, oily company, the case where operation achievement, actual development area and
The pre-set numerical value of development data, such as 0.3MMstb (are equivalent to cumulative oil production 4.2 × 104t)。
In addition, it should be noted that, the new well location threshold value of cloth described in the embodiment of the present application can be not limited in it is above-mentioned
0.3MMstb can be configured in practice with and in conjunction with specific development data, and the embodiment of the present application is not with above-mentioned
It is limited.
S160: it when the result judged is is, using second saturation data as current saturation data, holds
The step of row S120 to S150 to the result that step S150 judges is no.
In the embodiment of the present application, when the result that step S150 judges is is, i.e., described second cumulative oil production with it is described
When the difference of first cumulative oil production is greater than default cloth new well location threshold value, the economic value that current new well has had can be determined
Stepout well, correspondingly, can be to execute the step of S120 to S150 using second saturation data as current saturation data
It suddenly is no to the result that step S150 judges.
Specifically, can determine the new well of multiple economic values having had by repeating step S120 to S150 here
Well location.
S170: when the result that step S150 judges is no, determine the well location of new well in current well location map wait dispose
New well well location.
In the embodiment of the present application, it can determine that the well location of new well in current well location map is new well well location to be disposed.It is subsequent,
Drilling well can be carried out to the new well well location to be disposed.
As shown in Fig. 2, Fig. 2 is the flow chart of another embodiment of the method for determining well location provided by the present application.One
In a little embodiments, before step S170 determines that the well location of new well in current well location map is new well well location to be disposed, the side
Method can also include:
S180: when the result that step S150 judges is no, the well location of current new well is removed in current well location map；According to
The size of remaining movable oil in place, the remaining moveable oil storage in the descending region corresponding to the well location for removing the current new well
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in amount abundance distribution figure, by the new well
Well location the step of current well location map is added, executes S140 to S150 to the result that step S150 the judges number that is continuously no it is big
In preset times.
Specifically, when the result continuous several times that step S150 judges are no, it can be determined that without good new of economic value
Drilling well can stop at the operation that corresponding region determines new well well location accordingly.
In a specific embodiment, as shown in figure 3, Fig. 3 is remaining movable oil in place abundance point provided by the present application
A kind of schematic diagram of embodiment of new well well location is determined in Butut.Transverse and longitudinal coordinate indicates geographical coordinate in figure, represents geographical location,
Unit is m, and gray scale indicates different remaining movable oil in place abundance, and gray value is bigger to represent remaining movable oil in place abundance more
Greatly, be more conducive to Bu Xinjing.Wherein, Mir-1 indicates old well；Using numerical reservoir simulation method determine certain old wellblock from exploitation to
Development data when oilfield waste, i.e., by Mir-1 well from exploitation to it is discarded when cumulative oil production, and obtained accumulation produces
Oil mass is 26.5 × 104t；It is descending in the remaining movable oil in place abundance point according to the size of remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well (MP1) is chosen in Butut；Utilize numerical reservoir
Analogy method determine be added new well (MP1) afterwards drilling area from exploitation to it is discarded when cumulative oil production be 38.7 × 104T, accordingly
, 38.7 × 104t-26.5×104T=12.2 × 104T, it is clear that 12.2 × 104T is greater than 4.2 × 104T (the default new well location of cloth
Threshold value), it is possible to judge new well MP1 for the drilling well with economic value, correspondingly, determining that the well location of current new well MP1 is
New well well location to be disposed.
Fig. 4 is another embodiment that new well well location is determined in remaining movable oil in place abundance distribution figure provided by the present application
Schematic diagram.Transverse and longitudinal coordinate indicates geographical coordinate in figure, represents geographical location, unit m, and gray scale indicates that different residues is movable
Oilreserves abundance, gray value is bigger, and the residue movable oil in place abundance that represents is bigger, is more conducive to Bu Xinjing.As shown in figure 4, utilizing
Technical solution provided by the present application is successively in the corresponding remaining movable oil in place abundance in the region including old well Mir-1 and MiNW-1
It determines to meet the new well well location that exploitation requires in distribution map.The new well determined is successively are as follows: MP1, MP3, MP2W, MP4, MP5,
MP6.New well cumulative oil production is shown in Table 1.
The new well of table 1 tires out oil production summary sheet
As shown in figure 5, Fig. 5 is a kind of embodiment for the oil saturation distribution map that determining well location utilizes in the prior art
Schematic diagram, transverse and longitudinal coordinate indicates geographical coordinate in figure, represents geographical location, unit m, includes old well Mir-1 and MiNW- in figure
1.High-order bit oil saturation is influenced small by oil column height and reservoir properties as seen from Figure 5, and factor saturation difference is small, works as construction
It is based near 0.65 higher than average staturation after height above sea level -820m, it is difficult to the best well location of optimization, and structural high part is storage
The high region of abundance is measured, produce tired to oil field contributes maximum region.As shown in fig. 6, Fig. 6 is to utilize determining well provided by the present application
A kind of schematic diagram of the embodiment for the remaining movable oil in place abundance distribution figure that position utilizes.Transverse and longitudinal coordinate indicates geographical seat in figure
Mark, represents geographical location, unit m, includes old well Mir-1 and MiNW-1 in figure.From fig. 6, it can be seen that its by effective thickness,
The combined influence of saturation degree, porosity can easily find best well location, particularly with structural high part region.
By a kind of embodiment of the method for determining well location of above the application as it can be seen that the application is by drawing remaining moveable oil storage
Abundance distribution figure is measured, it is then, descending in the remaining movable oil in place abundance point according to the size of remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in Butut, can be determined remaining movable
Oilreserves enrichment region；Then, determine the current well location map corresponding well after increasing new well from exploitation using numerical reservoir simulation method
Saturation data and cumulative oil production when being discarded to oil reservoir；By judging whether increased cumulative oil production is big after increasing new well
The superiority and inferiority of current new well can be determined in the default new well location threshold value of cloth；When the result judged is is, new well can will be increased
Saturation data when current well location map corresponding well afterwards is discarded from exploitation to oil reservoir carries out remaining as current saturation data
The drafting of movable oil in place abundance distribution figure, until the above-mentioned result judged is no.In turn, new well in current well location map can be determined
Well location be new well well location to be disposed, it is subsequent, drilling well can be carried out to the new well well location to be disposed determined, it can be ensured that
New well yield, tired production and exploiting economy benefit.It compared with prior art, can be quick using technical solution provided by the present application
It determines reasonable well location, reduces inefficient well；And can easily find oilreserves enrichment region, to reduce workload, improve work effect
Rate.
On the other hand the application also provides a kind of device of determining well location, Fig. 7 is the dress of determining well location provided by the present application
The structural schematic diagram in a kind of embodiment set；As shown in fig. 7, described device 700 may include:
First reservoir numerical simulation processing module 710 can be used for determining current old well using numerical reservoir simulation method
The first saturation data and the first cumulative oil production when being discarded from exploitation to oil reservoir, using first saturation data as working as
Preceding saturation data；
Distribution map drafting module 720 can be used for drawing using the current saturation data and default oil deposit parameter surplus
Remaining movable oil in place abundance distribution figure；
First well location chooses module 730, can be used for the size according to remaining movable oil in place, descending described surplus
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in remaining movable oil in place abundance distribution figure,
Current well location map is added in the well location of the new well；
Second reservoir numerical simulation processing module 740 can be used for determining current well location using numerical reservoir simulation method
Scheme the second saturation data and the second cumulative oil production when corresponding well is discarded from exploitation to oil reservoir；
Data judgment module 750 can be used for judging second cumulative oil production and first cumulative oil production
Whether difference is greater than the new well location threshold value of default cloth；
Data processing module 760 can be used for when the result that the data judgment module 750 judges is is, will be described
The second saturation data that second reservoir numerical simulation processing module 740 obtains is as in the distribution map drafting module 720
Current saturation data carries out the drafting of remaining movable oil in place abundance distribution figure, until the data judgment module 750 judgement
It as a result is no；
Well location determining module 770, for determining that the well location of new well in current well location map is new well well location to be disposed.
In another embodiment, described device 700 can also include:
Well location removes module, can be used for when the result that the data judgment module judges is no, in current well location map
The well location of the middle current new well of removal；
Second well location chooses module, can be used for the size according to remaining movable oil in place, descending described in the removal
It is chosen in the remaining movable oil in place abundance distribution figure in region corresponding to the well location of current new well and meets the surplus of default constraint condition
Current well location map is added in the well location of the new well by well location of the remaining movable oil in place area as new well；
Constraints module, can be used for the second well location choose module by the well location of the new well be added current well location map it
Afterwards, it constrains the second reservoir numerical simulation processing module and determines the corresponding well of current well location map using numerical reservoir simulation method
Described in the second saturation data and the second cumulative oil production and data judgment module judgement when being discarded from exploitation to oil reservoir
Whether the difference of the second cumulative oil production and first cumulative oil production is greater than the step of default cloth new well location threshold value to described
The number that the result of data judgment module judgement is continuously no is greater than preset times.
The application also provides the specific embodiment of the distribution map drafting module 720, specifically, in another embodiment,
The distribution map drafting module 720 may include:
First computing unit can be used for utilizing the oil saturation and corresponding remnants in the current saturation data
Oily saturation computation obtains remaining mobile oil saturation；
Second computing unit can be used for utilizing the hole in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil reservoir effective thickness, oil density, oil volume factor；
First distribution map drawing unit can be used for drawing remaining moveable oil storage according to the remaining movable oil in place abundance
Measure abundance distribution figure.
The application also provides another specific embodiment of the distribution map drafting module 720, specifically, another is implemented
In example, the distribution map drafting module 720 may include:
Third computing unit can be used for utilizing the water saturation and corresponding remnants in the current saturation data
Oily saturation computation obtains remaining mobile oil saturation；
4th computing unit can be used for utilizing the hole in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in degree, oil reservoir effective thickness, oil density, oil volume factor；
Second distribution map drawing unit can be used for drawing remaining moveable oil storage according to the remaining movable oil in place abundance
Measure abundance distribution figure.
In a preferred embodiment, the default constraint condition may include:
Well and tomography distance, economic limit well space.
By a kind of embodiment of the method and apparatus of determining well location of above the application as it can be seen that the application can by drawing residue
Dynamic oilreserves abundance distribution figure, it is then, descending in the remaining movable oil in place according to the size of remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in abundance distribution figure, can determine to remain
Remaining movable oil in place enrichment region；Then, the current well location map corresponding well after increasing new well is determined using numerical reservoir simulation method
Saturation data and cumulative oil production when being discarded from exploitation to oil reservoir；Pass through increased cumulative oil production after the new well of judgement increase
The newly superiority and inferiority of well can be determined currently by whether being greater than the default new well location threshold value of cloth；When the result judged is is, can will increase
Saturation data when current well location map corresponding well after adding new well is discarded from exploitation to oil reservoir as current saturation data into
The drafting of row residue movable oil in place abundance distribution figure, until the above-mentioned result judged is no.In turn, current well location map can be determined
In the well location of new well be new well well location to be disposed, it is subsequent, drilling well can be carried out to the new well well location to be disposed determined, can
To ensure new well yield, tired production and exploiting economy benefit.It compared with prior art, can using technical solution provided by the present application
Quickly to determine reasonable well location, inefficient well is reduced；And can easily find oilreserves enrichment region, to reduce workload, improve
Working efficiency.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Claims (10)
1. a kind of method of determining well location, which is characterized in that the described method includes:
S10: the first saturation data when determining that current old well is discarded from exploitation to oil reservoir using numerical reservoir simulation method with
First cumulative oil production, using first saturation data as current first saturation data；
S20: remaining movable oil in place abundance distribution figure is drawn using current first saturation data and default oil deposit parameter；
S30: descending to be chosen in the remaining movable oil in place abundance distribution figure according to the size of remaining movable oil in place
Meet well location of the remaining movable oil in place area of default constraint condition as new well, current well location is added in the well location of the new well
Figure；
S40: second when determining that the corresponding well of current well location map is discarded from exploitation to oil reservoir using numerical reservoir simulation method is full
With degree evidence and the second cumulative oil production；
S50: judge whether second cumulative oil production and the difference of first cumulative oil production are greater than the new well location of default cloth
Threshold value；
S60: it when the result judged is is, using second saturation data as current second saturation data, holds
The step of row S20 to S50, until the result that step S50 judges is no；
S70: when the result that step S50 judges is no, determine that the well location of new well in current well location map is Xin Jingjing to be disposed
Position.
2. the method according to claim 1, wherein the well location of new well is wait dispose in the current well location map of determination
New well well location before, the method also includes:
When the result that step S50 judges is no, the well location of current new well is removed in current well location map；
According to the size of remaining movable oil in place, the residue in the descending region corresponding to the well location for removing the current new well
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in movable oil in place abundance distribution figure, it will
What the step of current well location map is added in the well location of the new well, executes S40 to S50 was continuously no to the result that step S50 judges
Number is greater than preset times.
3. method according to claim 1 or 2, which is characterized in that it is described using current first saturation data and
Default oil deposit parameter draws remaining movable oil in place abundance distribution figure
Using in current first saturation data oil saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
Utilize porosity, the oil reservoir effective thickness, oil density, original in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in oil volume coefficient；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
4. method according to claim 1 or 2, which is characterized in that it is described using current first saturation data and
Default oil deposit parameter draws remaining movable oil in place abundance distribution figure
Using in current first saturation data water saturation and corresponding residual oil saturation residue is calculated
Mobile oil saturation；
Utilize porosity, the oil reservoir effective thickness, oil density, original in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in oil volume coefficient；
Remaining movable oil in place abundance distribution figure is drawn according to the remaining movable oil in place abundance.
5. method according to claim 1 or 2, which is characterized in that the default constraint condition includes:
Well and tomography distance, economic limit well space.
6. a kind of device of determining well location, which is characterized in that described device includes:
First reservoir numerical simulation processing module, for determining current old well from exploitation to oil reservoir using numerical reservoir simulation method
The first saturation data and the first cumulative oil production when discarded, using first saturation data as current first saturation degree
Data；
Distribution map drafting module, for drawing remaining moveable oil using current first saturation data and default oil deposit parameter
Reserves abundance distribution map；
First well location chooses module, descending to store up in the remaining moveable oil for the size according to remaining movable oil in place
Well location of the remaining movable oil in place area for meeting default constraint condition as new well is chosen in amount abundance distribution figure, by the new well
Well location current well location map is added；
Second reservoir numerical simulation processing module, for using numerical reservoir simulation method determine the corresponding well of current well location map from
The second saturation data and the second cumulative oil production when exploitation is discarded to oil reservoir；
Data judgment module, for judging whether second cumulative oil production and the difference of first cumulative oil production are greater than
The default new well location threshold value of cloth；
Data processing module, when result for judging when the data judgment module is is, by the second numerical reservoir mould
The second saturation data that quasi- processing module obtains as current second saturation data in the distribution map drafting module into
The drafting of row residue movable oil in place abundance distribution figure, until the result that the data judgment module judges is no；
Well location determining module, for determining that the well location of new well in current well location map is new well well location to be disposed.
7. device according to claim 6, which is characterized in that described device further include:
Well location removal module removes in current well location map and works as when the result for judging when the data judgment module is no
The well location of preceding new well；
Second well location chooses module, descending to remove the current new well for the size according to remaining movable oil in place
Well location corresponding to region remaining movable oil in place abundance distribution figure in choose and meet the remaining moveable oil of default constraint condition
Current well location map is added in the well location of the new well by well location of the reserves area as new well；
Constraints module, for constraining institute after the second well location chooses module for the current well location map of well location addition of the new well
State the second reservoir numerical simulation processing module using numerical reservoir simulation method determine the corresponding well of current well location map from exploitation to
The second saturation data and the second cumulative oil production and the data judgment module when oil reservoir is discarded judge second accumulation
Whether the difference of oil production and first cumulative oil production, which is greater than the step of default cloth new well location threshold value to the data, judges
The number that the result of module judgement is continuously no is greater than preset times.
8. device according to claim 6 or 7, which is characterized in that the distribution map drafting module includes:
First computing unit, for using in current first saturation data oil saturation and corresponding residual oil it is full
Remaining mobile oil saturation is calculated with degree；
Second computing unit, for having using porosity, the oil reservoir in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in effect thickness, oil density, oil volume factor；
First distribution map drawing unit, for drawing remaining movable oil in place abundance point according to the remaining movable oil in place abundance
Butut.
9. device according to claim 6 or 7, which is characterized in that the distribution map drafting module includes:
Third computing unit, for using in current first saturation data water saturation and corresponding residual oil it is full
Remaining mobile oil saturation is calculated with degree；
4th computing unit, for having using porosity, the oil reservoir in the remaining mobile oil saturation and default oil deposit parameter
Remaining movable oil in place abundance is calculated in effect thickness, oil density, oil volume factor；
Second distribution map drawing unit, for drawing remaining movable oil in place abundance point according to the remaining movable oil in place abundance
Butut.
10. device according to claim 6 or 7, which is characterized in that the default constraint condition includes:
Well and tomography distance, economic limit well space.
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| CN107939371B (en) * | 2017-10-19 | 2019-09-10 | 中国石油天然气股份有限公司 | A kind of method and device of determining well pattern thickening feasibility |
| CN107701167B (en) * | 2017-11-28 | 2019-06-14 | 中国海洋石油集团有限公司 | Dispositions method based on equilibrium displacement offshore oilfield well pattern |
| CN110863818B (en) * | 2018-08-08 | 2023-08-29 | 中国石油化工股份有限公司 | Description method and device for residual oil/gas distribution |
| CN109236265B (en) * | 2018-08-29 | 2020-12-01 | 中国石油天然气股份有限公司 | Method for optimizing tight gas reservoir well pattern |
| CN109736706A (en) * | 2018-11-28 | 2019-05-10 | 中国石油天然气股份有限公司 | A kind of bottom water reservoir Tapping Residual Oil method |
| CN110259430A (en) * | 2019-06-27 | 2019-09-20 | 北京中油瑞飞信息技术有限责任公司 | A kind of method and device for disposing well location |
| CN110485988A (en) * | 2019-08-19 | 2019-11-22 | 中国石油天然气股份有限公司大港油田分公司 | A kind of low permeability reservoir simulation grid refinement method and device |
| CN111080789B (en) * | 2019-12-26 | 2022-04-19 | 中国石油大学(北京) | Method and device for determining well position of encrypted well in complex fault block oil reservoir exploitation area |
| US20210340858A1 (en) * | 2020-04-29 | 2021-11-04 | Saudi Arabian Oil Company | Systems and Methods for Dynamic Real-Time Hydrocarbon Well Placement |
| CN115434686B (en) * | 2022-09-21 | 2023-08-08 | 常州大学 | Method for inhibiting side bottom water coning of heterogeneous broken block heavy oil reservoir and application |
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| CN104615862B (en) * | 2015-01-14 | 2017-09-08 | 中国石油天然气股份有限公司 | The method that high water cut oil field based on evolution algorithm determines well location |
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