CN108829951A - Reservoir model boundary determining method and device - Google Patents
Reservoir model boundary determining method and device Download PDFInfo
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- CN108829951A CN108829951A CN201810550761.2A CN201810550761A CN108829951A CN 108829951 A CN108829951 A CN 108829951A CN 201810550761 A CN201810550761 A CN 201810550761A CN 108829951 A CN108829951 A CN 108829951A
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Abstract
The invention discloses a kind of reservoir model boundary determining method and devices, belong to oilfield exploitation technical field.Method includes：Acquire the corresponding well location coordinate of N number of point to be analyzed, and according to the corresponding well location coordinate of the N number of point, datum mark is selected from N number of point, by the positional relationship between other points in the datum mark and N number of point in addition to the datum mark, determines the corresponding well location coordinate of initial boundary point in N number of point；According to the corresponding well location coordinate of multiple initial boundary point, the corresponding barycentric coodinates of multiple initial boundary point are determined；According to the corresponding barycentric coodinates of multiple initial boundary point, the extended model of N number of point is determined；According to the extended model, the corresponding well location coordinate of multiple initial boundary point and barycentric coodinates, determine the boundary of the reservoir model of N number of point, so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding is kept apart, the efficiency and accuracy on determining boundary are improved.
Description
Technical field
The present invention relates to oilfield exploitation technical field, in particular to a kind of reservoir model boundary determining method and device.
Background technique
In current oil extraction process, the reservoir model for being normally based on foundation is exploited, and reservoir model describes
The features such as geometric shape, three-dimensional spatial distribution feature, scale and each reservoir physical parameter of oil reservoir to be exploited are designs
The important evidence of recovery scheme.In oilfield exploitation early period, it usually needs first divide the boundary of multiple wells in certain area, determining should
The corresponding regional scope of reservoir model belonging to multiple wells, in order to the range based on each reservoir model, after accurately carrying out
Continuous exploitation work, for example, carrying out quick oil reservoir project analysis and Numerical-Mode by the boundary delimited between different reservoir models
It is quasi-, convenient for working out reasonable oilfield exploitation scheme.
In the prior art, it is generally basede on the progress such as formation testing method, logging interpretation method, pressure test method boundary to determine, with pressure
For method of testing, the process which determines is usually：Staff acquires original formation pressure data and depth data is drawn
Barometric gradient figure obtains the position of oil gas, oil-water interfaces by the straight line Convergence method of barometric gradient figure, and the coordinate of surge well can be true
Stand oil water, interface of oil and gas coordinate are based on these boundary coordinates, it may be determined that reservoir model boundary.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：
Above-mentioned boundary determination process is actually based on the boundary coordinate of oil-water interfaces, by way of manual operation successively
Obtain the boundary of each reservoir model.However, data is deficient, it is difficult to determine reservoir model boundary in actual production process；It is above-mentioned
Manual operation process not only low efficiency, also brings along the error of human factor, causes the accuracy rate on the boundary determined relatively low.
Summary of the invention
The present invention provides a kind of reservoir model boundary determining method and device, can solve the prior art low efficiency,
The low problem of accuracy rate, technical solution are as follows：
In a first aspect, a kind of reservoir model boundary determining method is provided, the method includes：
The corresponding well location coordinate of N number of point to be analyzed is acquired, N number of point is used to indicate the mouth well of the N in space, and N is big
In the integer for being equal to three；
According to the corresponding well location coordinate of the N number of point, datum mark is selected from N number of point, the datum mark is the N
The nearest point of the reference axis of well location coordinate described in distance in a point；
By the positional relationship between other points in the datum mark and N number of point in addition to the datum mark, really
The corresponding well location coordinate of initial boundary point in fixed N number of point, the positional relationship are used to indicate other described points and the base
Azimuth-range between on schedule；
According to the corresponding well location coordinate of the multiple initial boundary point, the corresponding center of gravity of the multiple initial boundary point is determined
Coordinate；
According to the corresponding barycentric coodinates of the multiple initial boundary point, the extended model of N number of point is determined；
According to the extended model, the corresponding well location coordinate of the multiple initial boundary point and barycentric coodinates, the N is determined
The boundary of the reservoir model of a point so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding every
It leaves.
Optionally, between described other points by the datum mark and in N number of point in addition to the datum mark
Positional relationship determines that the corresponding well location coordinate of initial boundary point includes in N number of point：
According to the positional relationship between the datum mark and other described points, N number of point is ranked up, is sorted
The corresponding well location coordinate of N number of point afterwards；
According to the corresponding well location coordinate of N number of point after the sequence, each point in N number of point and the point that is connected are determined
Between positional relationship, by N number of point be located at marginal position point be determined as the initial boundary point.
Optionally, the corresponding well location coordinate of N number of point according to after the sequence, determines each of described N number of point
The point for being located at marginal position in N number of point is determined as the initial boundary point packet by the positional relationship put and be connected between a little
It includes：
According to the corresponding well location coordinate of N number of point after the sequence, reference line that each pair of point is answered and described every is determined
Positional relationship between a point and the reference line, the reference line are the line between the two neighboring point of each point；
According to the positional relationship and the reference line answered of each pair of point between each point and the reference line, traversal
The point for being located at marginal position in N number of point is determined as the initial boundary point by the position of each point.
Optionally, described according to the corresponding barycentric coodinates of the multiple initial boundary point, determine the expanded mode of N number of point
Type includes：
Terminal obtains the corresponding spreading coefficient of N number of point, according to the corresponding barycentric coodinates of the multiple initial boundary point
With the spreading coefficient, the extended model of N number of point is constructed, the spreading coefficient is used to indicate the corresponding well of N number of point
The intensity that position coordinate is distributed in space.
Optionally, described to be sat according to the extended model, the corresponding well location coordinate of the multiple initial boundary point and center of gravity
Mark, determines that the boundary of the reservoir model of N number of point includes：
According to fixed extended model, the corresponding well location coordinate of the multiple initial boundary point and the barycentric coodinates,
By following formula one, each initial boundary point is extended, multiple boundary points are obtained；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) it is jth
The corresponding well location coordinate of a initial boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；
The multiple boundary point is successively attached, the region that multiple boundary points after connection are surrounded is as N number of point
Region included by corresponding reservoir model, and using the boundary surrounded as the boundary of the reservoir model.
Second aspect, provides a kind of reservoir model boundary determining device, and described device includes：
Acquisition module, for acquiring the corresponding well location coordinate of N number of point to be analyzed, N number of point is used to indicate in space
N mouth well, N is integer more than or equal to three；
Selecting module, it is described for selecting datum mark from N number of point according to the corresponding well location coordinate of the N number of point
Datum mark is the nearest point of the reference axis of well location coordinate described in distance in N number of point；
Determining module, for by between other points in the datum mark and N number of point in addition to the datum mark
Positional relationship, determine the corresponding well location coordinate of initial boundary point in N number of point, the positional relationship be used to indicate it is described its
He puts the azimuth-range between the datum mark；
The determining module is also used to be determined the multiple according to the corresponding well location coordinate of the multiple initial boundary point
The corresponding barycentric coodinates of initial boundary point；
The determining module is also used to determine N number of point according to the corresponding barycentric coodinates of the multiple initial boundary point
Extended model；
The determining module is also used to according to the extended model, the corresponding well location coordinate of the multiple initial boundary point
And barycentric coodinates, determine the boundary of the reservoir model of N number of point so that the corresponding N mouthfuls of well of the reservoir model and surrounding its
The corresponding well of his reservoir model is kept apart.
Optionally, the determining module, including：
Sequencing unit, for being carried out to N number of point according to the positional relationship between the datum mark and other described points
Sequence, the corresponding well location coordinate of N number of point after being sorted；
Determination unit, for determining every in N number of point according to the corresponding well location coordinate of N number of point after the sequence
The point for being located at marginal position in N number of point is determined as the initial boundary point by a point and the positional relationship being connected between a little.
Optionally, the determination unit, for determining each according to the corresponding well location coordinate of N number of point after the sequence
Positional relationship between the corresponding reference line of point and each point and the reference line, the reference line are described each
Line between the two neighboring point of point；According between each point and the reference line positional relationship and each point
Corresponding reference line traverses the position of each point, and the point that marginal position is located in N number of point is determined as the initial boundary
Point.
Optionally, the determining module is also used to terminal and obtains the corresponding spreading coefficient of N number of point, according to described more
A corresponding barycentric coodinates of initial boundary point and the spreading coefficient construct the extended model of N number of point, the spreading coefficient
It is used to indicate the intensity that the corresponding well location coordinate of N number of point is distributed in space.
Optionally, the determining module is also used to corresponding according to fixed extended model, the multiple initial boundary point
Well location coordinate and the barycentric coodinates each initial boundary point is extended, multiple boundaries are obtained by following formula one
Point；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) it is jth
The corresponding well location coordinate of a initial boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；It will
The multiple boundary point is successively attached, and the region that multiple boundary points after connection are surrounded is as the corresponding oil reservoir of N number of point
The region that model includes, and using the boundary surrounded as the boundary of the reservoir model.
In the embodiment of the present invention, terminal is used for by acquiring the corresponding well location coordinate of N number of point to be analyzed, N number of point
Indicate that the N mouth well in space, N are the integer more than or equal to three；And according to the corresponding well location coordinate of the N number of point, from described N number of
Datum mark is selected in point, the datum mark is the nearest point of the reference axis of well location coordinate described in distance in N number of point；Pass through institute
The positional relationship between other points in datum mark and N number of point in addition to the datum mark is stated, is determined in N number of point just
The corresponding well location coordinate of beginning boundary point, the positional relationship be used to indicate orientation between other described points and the datum mark and
Distance；According to the corresponding well location coordinate of the multiple initial boundary point, determine that the corresponding center of gravity of the multiple initial boundary point is sat
Mark；According to the corresponding barycentric coodinates of the multiple initial boundary point, the extended model of N number of point is determined；According to the extension
The corresponding well location coordinate of model, the multiple initial boundary point and barycentric coodinates determine the side of the reservoir model of N number of point
Boundary, so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding is kept apart.Due to passing through terminal base
It is determined boundary in the well location coordinate of each well, the artificial operating process for drawing boundary curve is omitted, also, for difference
The reservoir model of grease control system is applicable in, to substantially increase the efficiency on determining boundary, also, avoids artifact
Bring error further improves the accuracy on determining boundary.
Detailed description of the invention
Fig. 1 is a kind of flow chart of reservoir model boundary determining method provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of reservoir model boundary determining method provided in an embodiment of the present invention；
Fig. 3 is a kind of distribution schematic diagram of the corresponding each well of reservoir model provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of reservoir model boundary determining method provided in an embodiment of the present invention；
Fig. 5 is a kind of reservoir model boundary determining device structural schematic diagram provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of flow chart of reservoir model boundary determining method provided in an embodiment of the present invention, the execution of this method
Main body can be with terminal, as shown in Figure 1, this method includes：
101, the corresponding well location coordinate of N number of point to be analyzed is acquired, which is used to indicate the mouth well of the N in space, and N is
Integer more than or equal to three；
102, according to the corresponding well location coordinate of the N number of point, datum mark is selected from N number of point, which is N number of point
The nearest point of the middle reference axis apart from the well location coordinate；
103, it by the positional relationship between other points in the datum mark and N number of point in addition to the datum mark, determines
The corresponding well location coordinate of initial boundary point in N number of point, the positional relationship are used to indicate between other points and the datum mark
Azimuth-range；
104, according to the corresponding well location coordinate of multiple initial boundary point, the corresponding center of gravity of multiple initial boundary point is determined
Coordinate；
105, according to the corresponding barycentric coodinates of multiple initial boundary point, the extended model of N number of point is determined；
106, according to the extended model, the corresponding well location coordinate of multiple initial boundary point and barycentric coodinates, determine that this is N number of
The boundary of the reservoir model of point, so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding is kept apart.
Optionally, the positional relationship between other points in the datum mark and N number of point in addition to the datum mark should be passed through,
Determine that the corresponding well location coordinate of initial boundary point includes in N number of point：
According to the positional relationship between the datum mark and other points, which is ranked up, the N after being sorted
The corresponding well location coordinate of a point；
According to the corresponding well location coordinate of N number of point after the sequence, determine each point in N number of point be connected between a little
The point for being located at marginal position in N number of point is determined as the initial boundary point by positional relationship.
Optionally, this determines each point and phase in N number of point according to the corresponding well location coordinate of N number of point after the sequence
The even positional relationship between point, the point that marginal position is located in N number of point, which is determined as the initial boundary point, includes：
According to the corresponding well location coordinate of N number of point after the sequence, the reference line and each point that each pair of point is answered are determined
With the positional relationship between the reference line, which is the line between the two neighboring point of each point；
According to the positional relationship and the reference line answered of each pair of point between each point and the reference line, traversal is each
The point for being located at marginal position in N number of point is determined as the initial boundary point by the position of point.
Optionally, this determines the extended model packet of N number of point according to the corresponding barycentric coodinates of multiple initial boundary point
It includes：
Terminal obtains the corresponding spreading coefficient of the N number of point, according to corresponding barycentric coodinates of multiple initial boundary point and should
Spreading coefficient, constructs the extended model of N number of point, which is used to indicate the corresponding well location coordinate of the N number of point in space
The intensity of middle distribution.
Optionally, this is determined according to the extended model, the corresponding well location coordinate of multiple initial boundary point and barycentric coodinates
The boundary of the reservoir model of N number of point includes：
According to fixed extended model, the corresponding well location coordinate of multiple initial boundary point and the barycentric coodinates, pass through
Following formula one is extended each initial boundary point, obtains multiple boundary points；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) it is jth
The corresponding well location coordinate of a initial boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；
Multiple boundary point is successively attached, the region that multiple boundary points after connection are surrounded is as N number of point pair
Region included by the reservoir model answered, and using the boundary surrounded as the boundary of the reservoir model.
In the embodiment of the present invention, terminal is by acquiring the corresponding well location coordinate of N number of point to be analyzed, and N number of point is for referring to
Show that the N mouth well in space, N are the integer more than or equal to three；And according to the corresponding well location coordinate of the N number of point, selected from N number of point
Datum mark is selected, which is the nearest point of the reference axis of the distance well location coordinate in N number of point；Pass through the datum mark and the N
The positional relationship between other points in a point in addition to the datum mark determines the corresponding well location of initial boundary point in N number of point
Coordinate, the positional relationship are used to indicate the azimuth-range between other points and the datum mark；According to multiple initial boundary
The corresponding well location coordinate of point, determines the corresponding barycentric coodinates of multiple initial boundary point；It is corresponding according to multiple initial boundary point
Barycentric coodinates, determine the extended model of N number of point；It is sat according to the extended model, the corresponding well location of multiple initial boundary point
Mark and barycentric coodinates, determine the boundary of the reservoir model of N number of point so that the corresponding N mouthful well of the reservoir model and surrounding other
The corresponding well of reservoir model is kept apart.Due to being determined boundary based on the well location coordinate of each well by terminal, people is omitted
Work draws the operating process of boundary curve, also, the reservoir model of different grease control systems is applicable in, to mention significantly
The high efficiency on determining boundary, also, artifact bring error is avoided, further improve the accurate of determining boundary
Property.
Fig. 2 is a kind of flow chart of reservoir model boundary determining method provided in an embodiment of the present invention, the execution of this method
Main body can be with terminal, as shown in Fig. 2, this method includes：
201, terminal acquires the corresponding well location coordinate of N number of point to be analyzed.
Wherein, which is used to indicate the mouth well of the N in space, and N is the integer more than or equal to three.In the embodiment of the present invention,
Terminal can acquire the well location coordinate of each well to be analyzed by acquiring equipment, and according to the well location coordinate of each well, determine
N number of point to be analyzed out, each pair of point should be in a wells in space, to pass through N to be analyzed in N number of point instruction space
Mouth well.Wherein, the N mouthfuls of well can include but is not limited to：Intra-field oil well to be exploited and/or water injection well etc..
It should be noted that the N mouthfuls of well can be based on needing to be determined, for example, the N mouthfuls of well can be the same grease
Well in control system, alternatively, the well in the same grease flooding unit, or, the grease that the needs specified number are analyzed
Control system and/or the well of grease flooding unit etc., the embodiment of the present invention is not specifically limited in this embodiment.
Acquisition equipment can acquire the well location coordinate of N mouthfuls of wells in space in advance, and the well location coordinate of N mouthfuls of wells is sent to end
End, terminal receive and store the well location coordinate of the N mouthfuls of well.When needing to carry out reservoir model boundary to determine, terminal is deposited from specified
It is successively read the well location coordinate of N mouthfuls of wells in storage space, and using the well location coordinate of N mouthfuls of wells as the corresponding coordinate set of N number of point, with
The determination on boundary is carried out based on the coordinate set convenient for SS later.
Wherein, the well location coordinate can for each well in space earth coordinates position coordinates, for example, N number of point
Corresponding well location coordinate set can be：Well{W1, W2... ... Wi... ..., Wn, i-th point of corresponding well location coordinate can be with
For Wi(Xi, Yi), wherein.I-th point of abscissa XiIndicate coordinate of i-th mouthful of well in earth coordinates in X-axis, i-th point
Ordinate YiIndicate coordinate of i-th mouthful of well in earth coordinates in Y-axis.
202, terminal selects datum mark from N number of point according to the corresponding well location coordinate of the N number of point.
Wherein, the datum mark point nearest for the reference axis of the distance well location coordinate in N number of point.Terminal can will be N number of
In point, the point positioned at bottom is as datum mark, correspondingly, that is to say, orientation is located at most southern well as benchmark in N mouthfuls of wells
Well.Wherein, terminal can determine the datum mark by the corresponding well location coordinate of each point.By taking earth coordinates as an example, in general,
It using the nearest well of the X-axis in earth coordinates as stratigraphic well, that is to say, terminal takes ordinate in corresponding well location coordinate
It is worth the datum mark that the smallest point is determined as in N number of point.
203, terminal passes through the positional relationship between other points in the datum mark and N number of point in addition to the datum mark,
Determine the corresponding well location coordinate of initial boundary point in N number of point.
Wherein, which is used to indicate the azimuth-range between other points and the datum mark.Terminal passes through it
Positional relationship between his each point and datum mark, is first ranked up N number of point, and traverse out position in N number of point in sequence
In the initial boundary point of marginal position.Specifically, this step can be realized by following steps 2031-2032.
2031, terminal is ranked up N number of point, obtains according to the positional relationship between the datum mark and other points
N number of point after sequence.
Terminal determines angle and distance between other points and the datum mark, and according to the angle and distance, to N number of click-through
The arrangement of row ascending order, N number of point after being sorted.Wherein, which is the starting point in N number of point after sequence.After the sequence
The corresponding well location coordinate set of N number of point can be expressed as：Well ' { P1, P2... ..., Pi... ..., Pn}；The wherein datum mark
It can be expressed as：P1(X1, Y1)。
Wherein, for other each points, terminal can be by the line between other points and datum mark and between positive X-axis
Angle carries out ascending order arrangement, when angle is identical as the angle between other points and datum mark, also, according to the size of angle
When, range of pressing identical to angle is from progress ascending order arrangement.
Certainly, the sortord of each point can need to be arranged based on user, row of the embodiment of the present invention for each point
Sequential mode is not especially limited, for example, it is also possible to be arranged according to descending, alternatively, according to the size of distance between origin
Carry out ascending order arrangement etc..
2032, terminal determines each point and phase in N number of point according to the corresponding well location coordinate of N number of point after the sequence
The point for being located at marginal position in N number of point is determined as the initial boundary point by the even positional relationship between point.
In embodiment of the present invention, terminal determines that each pair of point is answered according to the corresponding well location coordinate of N number of point after the sequence
Reference line, and determine the positional relationship between each point and the reference line；Then, terminal is according to each point and the benchmark
The reference line that positional relationship and each pair of point between line are answered traverses the position of each point, and edge will be located in N number of point
The point of position is determined as the initial boundary point, wherein line of the reference line between two points adjacent with each point.
It is above-mentioned based on datum mark and process that each point is traversed can be in a kind of possible design：
Step a：Terminal is using second point in N number of point after the datum mark and sequence as start boundary point, wherein should
Start boundary point P1、P2It can be expressed as B1、B2, determine that initial baseline line is (P1P2)；Enable i=3；
Step b：Terminal judges a point P of (i)iWhether in the left side of current base line；
Step c：When (i) a point is on the left of the reference line, terminal is by a point P of (i)iLabeled as a boundary
Well：{Bj(j=3,4 ...), and by (Bj-1Bj) it is set as new reference line；I=i+1 is enabled, step b is executed；
Step d：When (i) a point is not on the left of the reference line, terminal is by a point P of (i)iLabeled as a boundary
Well：{Bj(j=3,4 ...), while by boundary point Bj-1It is deleted from the point set of boundary, enables j=j-1；And by (Bj-2Bj-1) weight
Newly it is set as new reference line；
Step e：Terminal judges (j) a boundary point BjWhether in the left side of new reference line, if so, enabling i=i+1, and will
(Bj-1Bj) it is re-set as new reference line, execute step b；If it is not, then terminal is by boundary point Bj-1It is deleted from the point set of boundary
It removes, enables j=j-1, repeat step e；
Step f：Terminal repeats above-mentioned steps b-e, and the judgement of above-mentioned steps b-e is gradually carried out to each point, until
The all the points in N number of point are traversed.
Step g：Terminal obtains initial boundary point (B1, B2..., Bm)。
204, terminal determines that multiple initial boundary point is corresponding according to the corresponding well location coordinate of multiple initial boundary point
Barycentric coodinates.
In this step, terminal is determined multiple by the corresponding well location coordinate of each initial boundary point by following formula three
The corresponding barycentric coodinates of initial boundary point：
Formula three：
Wherein, X in formulaj, YjFor the abscissa and ordinate of boundary point.The corresponding barycentric coodinates of borderline well areM is the total number of boundary point, and j indicates j-th of boundary point in m boundary point.
In the embodiment of the present invention, after terminal determines the initial boundary point of N number of point, the extended model of N number of point can be first established,
Each initial boundary point is extended, the oil reservoir mould of N number of point is obtained by the extended model by following steps 206 again
Type.
205, terminal determines the extended model of N number of point according to the corresponding barycentric coodinates of multiple initial boundary point.
In this step, terminal obtains the corresponding spreading coefficient of the N number of point, according to the corresponding center of gravity of multiple initial boundary point
Coordinate and the spreading coefficient, construct the extended model of N number of point, which is used to indicate the collection intermediate range of N number of point distribution
Degree.Wherein, terminal can use the value of the spreading coefficient, indicate the intensity of N number of point distribution.For example, when N number of point distribution
When more concentrating, spreading coefficient value can be smaller；When N number of point is distributed more dispersed, spreading coefficient value can be larger.
Wherein, shown in the following formula two of the extended model：
Formula two：B '=f (B, 0, α)
Wherein, which is spreading coefficient, and f is used to indicate the relationship between the corresponding extended model of N number of point and reservoir model.
Wherein, the value of the corresponding spreading coefficient of N number of point of different intensities can be stored in advance in terminal, because
This, the step of above-mentioned terminal obtains N number of point corresponding spreading coefficient can be：Terminal according to the corresponding well location coordinate of the N number of point,
The current intensity of N number of point is determined, and according to the current intensity of N number of point, from intensity and spreading coefficient
In the corresponding relationship of value, the current value of the corresponding spreading coefficient of the current intensity is obtained.
It should be noted that the spreading coefficient is a constant, the size of the constant value reflects N mouthfuls of wells spatially
The intensity of distribution.Terminal carries out initial boundary point further by the distributed degrees from each mouth well in three dimensions
Extension, amendment, to ensure that in the corresponding reservoir model of N number of point, each point all falls within the corresponding region of the reservoir model
In range, to further improve the accuracy and reliability on determining reservoir model boundary.
206, terminal is determined according to the extended model, the corresponding well location coordinate of multiple initial boundary point and barycentric coodinates
The boundary of the reservoir model of N number of point so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding every
It leaves.
According to the corresponding well location coordinate of extended model, multiple initial boundary point constructed and the barycentric coodinates, pass through
Following formula one is extended each initial boundary point, obtains multiple boundary points；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point Bj', (Xj, Yj) be
J-th of initial boundary point BjCorresponding well location coordinate,For the corresponding barycentric coodinates of initial boundary point, α is extension system
Number.
Multiple boundary point is successively attached by terminal, and the region that multiple boundary points after connection are surrounded is as N number of
Region included by the corresponding reservoir model of point, and using the boundary surrounded as the boundary of the reservoir model.Wherein, terminal is successively
By { B1', B2' ... Bj' ... Bm' } in the connection of each boundary point, to obtain the boundary of the corresponding reservoir model of final N mouthfuls of well.
As shown in figure 3, in Fig. 3, leftmost diagram is N number of point to be analyzed, corresponding to N mouth well to be analyzed in space,
Middle graph be by the above process determine initial boundary point, rightmost side figure be by extended model, finally determine reservoir model
Boundary, to obtain a sharpness of border, accurate reservoir model.
In order to better illustrate above-mentioned boundary determination process, by taking Fig. 4 as an example, to technical process of the terminal in actual job
It is introduced, which can be：Terminal judges whether the sum of well to be analyzed is greater than or equal to 3, if small
In 3, directly terminate, if it is greater than or be equal to 3, then select the datum mark in N number of point, and according between other points and the datum mark
Positional relationship, ascending order arrangement is successively carried out to N number of point, according to each point after sequence, determines the initial boundary point of N number of point,
It is based on extended model again, each initial boundary point is extended to the outside, the side of the corresponding reservoir model of N number of point is finally obtained
Boundary.
In the embodiment of the present invention, terminal is by acquiring the corresponding well location coordinate of N number of point to be analyzed, and N number of point is for referring to
Show that the N mouth well in space, N are the integer more than or equal to three；And according to the corresponding well location coordinate of the N number of point, selected from N number of point
Datum mark is selected, which is the nearest point of the reference axis of the distance well location coordinate in N number of point；Pass through the datum mark and the N
The positional relationship between other points in a point in addition to the datum mark determines the corresponding well location of initial boundary point in N number of point
Coordinate, the positional relationship are used to indicate the azimuth-range between other points and the datum mark；According to multiple initial boundary
The corresponding well location coordinate of point, determines the corresponding barycentric coodinates of multiple initial boundary point；It is corresponding according to multiple initial boundary point
Barycentric coodinates, determine the extended model of N number of point；It is sat according to the extended model, the corresponding well location of multiple initial boundary point
Mark and barycentric coodinates, determine the boundary of the reservoir model of N number of point so that the corresponding N mouthful well of the reservoir model and surrounding other
The corresponding well of reservoir model is kept apart.Due to being determined boundary based on the well location coordinate of each well by terminal, people is omitted
Work draws the operating process of boundary curve, also, the reservoir model of different grease control systems is applicable in, to mention significantly
The high efficiency on determining boundary, also, artifact bring error is avoided, further improve the accurate of determining boundary
Property.
Fig. 5 is a kind of flow chart of reservoir model boundary determining device provided in an embodiment of the present invention, which can answer
With at the terminal, as shown in figure 5, the device includes：Acquisition module 501, selecting module 502 and determining module 503.
Acquisition module 501, for acquiring the corresponding well location coordinate of N number of point to be analyzed, which is used to indicate in space
N mouth well, N is integer more than or equal to three；
Selecting module 502, for selecting datum mark from N number of point, the base according to the corresponding well location coordinate of the N number of point
Point on schedule nearest for the reference axis of the distance well location coordinate in N number of point；
Determining module 503, for passing through the position between other points in the datum mark and N number of point in addition to the datum mark
Relationship is set, determines the corresponding well location coordinate of initial boundary point in N number of point, which is used to indicate other points and the base
Azimuth-range between on schedule；
The determining module 503 is also used to be determined multiple initial according to the corresponding well location coordinate of multiple initial boundary point
The corresponding barycentric coodinates of boundary point；
The determining module 503 is also used to determine N number of point according to the corresponding barycentric coodinates of multiple initial boundary point
Extended model；
The determining module 503 is also used to according to the extended model, the corresponding well location coordinate of multiple initial boundary point and again
Heart coordinate determines the boundary of the reservoir model of N number of point, so that the corresponding N mouthfuls of well of the reservoir model and other oil reservoir moulds of surrounding
The corresponding well of type is kept apart.
Optionally, the determining module 503, including：
Sequencing unit, for being ranked up to N number of point according to the positional relationship between the datum mark and other points,
The corresponding well location coordinate of N number of point after being sorted；
Determination unit, for determining each point in N number of point according to the corresponding well location coordinate of N number of point after the sequence
With the positional relationship between the point that is connected, the point that marginal position is located in N number of point is determined as the initial boundary point.
Optionally, determination unit, for determining each pair of point according to the corresponding well location coordinate of N number of point after the sequence
Positional relationship between the reference line answered and each point and the reference line, the reference line are the two neighboring of each point
Line between point；According to the positional relationship and the reference line answered of each pair of point between each point and the reference line, traversal
The point for being located at marginal position in N number of point is determined as the initial boundary point by the position of each point.
Optionally, the determining module 503 is also used to terminal and obtains the corresponding spreading coefficient of the N number of point, according to it is multiple just
The corresponding barycentric coodinates of beginning boundary point and the spreading coefficient, construct the extended model of N number of point, which is used to indicate this
The intensity that the corresponding well location coordinate of N number of point is distributed in space.
Optionally, the determining module 503 is also used to corresponding according to fixed extended model, multiple initial boundary point
Well location coordinate and the barycentric coodinates each initial boundary point is extended, multiple boundaries are obtained by following formula one
Point；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) it is jth
The corresponding well location coordinate of a initial boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；It will
Multiple boundary point is successively attached, and the region that multiple boundary points after connection are surrounded is as the corresponding oil reservoir mould of N number of point
Region included by type, and using the boundary surrounded as the boundary of the reservoir model.
In the embodiment of the present invention, terminal is by acquiring the corresponding well location coordinate of N number of point to be analyzed, and N number of point is for referring to
Show that the N mouth well in space, N are the integer more than or equal to three；And according to the corresponding well location coordinate of the N number of point, selected from N number of point
Datum mark is selected, which is the nearest point of the reference axis of the distance well location coordinate in N number of point；Pass through the datum mark and the N
The positional relationship between other points in a point in addition to the datum mark determines the corresponding well location of initial boundary point in N number of point
Coordinate, the positional relationship are used to indicate the azimuth-range between other points and the datum mark；According to multiple initial boundary
The corresponding well location coordinate of point, determines the corresponding barycentric coodinates of multiple initial boundary point；It is corresponding according to multiple initial boundary point
Barycentric coodinates, determine the extended model of N number of point；It is sat according to the extended model, the corresponding well location of multiple initial boundary point
Mark and barycentric coodinates, determine the boundary of the reservoir model of N number of point so that the corresponding N mouthful well of the reservoir model and surrounding other
The corresponding well of reservoir model is kept apart.Due to being determined boundary based on the well location coordinate of each well by terminal, people is omitted
Work draws the operating process of boundary curve, also, the reservoir model of different grease control systems is applicable in, to mention significantly
The high efficiency on determining boundary, also, artifact bring error is avoided, further improve the accurate of determining boundary
Property.
It should be noted that：Reservoir model boundary provided by the above embodiment determining device determines on reservoir model boundary
When, only the example of the division of the above functional modules, in practical application, it can according to need and divide above-mentioned function
With being completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete above description
All or part of function.In addition, reservoir model boundary provided by the above embodiment determining device and reservoir model boundary are true
Determine embodiment of the method and belong to same design, specific implementation process is detailed in embodiment of the method, and which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of reservoir model boundary determining method, which is characterized in that the method includes：
Acquire the corresponding well location coordinate of N number of point to be analyzed, N number of point is used to indicate the mouth well of the N in space, N be greater than etc.
In three integer；
According to the corresponding well location coordinate of the N number of point, datum mark is selected from N number of point, the datum mark is N number of point
The nearest point of the middle reference axis apart from the well location coordinate；
By the positional relationship between other points in the datum mark and N number of point in addition to the datum mark, institute is determined
The corresponding well location coordinate of initial boundary point in N number of point is stated, the positional relationship is used to indicate other described points and the datum mark
Between azimuth-range；
According to the corresponding well location coordinate of the multiple initial boundary point, determine that the corresponding center of gravity of the multiple initial boundary point is sat
Mark；
According to the corresponding barycentric coodinates of the multiple initial boundary point, the extended model of N number of point is determined；
According to the extended model, the corresponding well location coordinate of the multiple initial boundary point and barycentric coodinates, N number of point is determined
Reservoir model boundary so that the corresponding N mouthfuls of well of reservoir model well corresponding with other reservoir models of surrounding is kept apart.
2. the method according to claim 1, wherein described by removing institute in the datum mark and N number of point
The positional relationship between other points other than datum mark is stated, determines the corresponding well location coordinate packet of initial boundary point in N number of point
It includes：
According to the positional relationship between the datum mark and other described points, N number of point is ranked up, after being sorted
The corresponding well location coordinate of N number of point；
According to the corresponding well location coordinate of N number of point after the sequence, determine each point in N number of point be connected between a little
The point for being located at marginal position in N number of point is determined as the initial boundary point by positional relationship.
3. according to the method described in claim 2, it is characterized in that, the corresponding well location of N number of point according to after the sequence
Coordinate, determine each point in N number of point with the positional relationship that is connected between a little, marginal position will be located in N number of point
Point be determined as the initial boundary point and include：
According to the corresponding well location coordinate of N number of point after the sequence, the reference line and each point that each pair of point is answered are determined
With the positional relationship between the reference line, the reference line is the line between the two neighboring point of each point；
According to the positional relationship and the reference line answered of each pair of point between each point and the reference line, traversal is each
The point for being located at marginal position in N number of point is determined as the initial boundary point by the position of point.
4. the method according to claim 1, wherein described according to the corresponding center of gravity of the multiple initial boundary point
Coordinate determines that the extended model of N number of point includes：
Terminal obtains the corresponding spreading coefficient of N number of point, according to the corresponding barycentric coodinates of the multiple initial boundary point and institute
Spreading coefficient is stated, the extended model of N number of point is constructed, the spreading coefficient is used to indicate the corresponding well location of N number of point and sits
Mark the intensity being distributed in space.
5. the method according to claim 1, wherein described according to the extended model, the multiple initial edge
The corresponding well location coordinate of boundary's point and barycentric coodinates determine that the boundary of the reservoir model of N number of point includes：
According to fixed extended model, the corresponding well location coordinate of the multiple initial boundary point and the barycentric coodinates, pass through
Following formula one is extended each initial boundary point, obtains multiple boundary points；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) at the beginning of j-th
The corresponding well location coordinate of beginning boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；
The multiple boundary point is successively attached, the region that multiple boundary points after connection are surrounded is corresponded to as N number of point
Reservoir model included by region, and using the boundary surrounded as the boundary of the reservoir model.
6. a kind of reservoir model boundary determining device, which is characterized in that described device includes：
Acquisition module, for acquiring the corresponding well location coordinate of N number of point to be analyzed, N number of point is used to indicate the mouth of the N in space
Well, N are the integer more than or equal to three；
Selecting module, for selecting datum mark, the benchmark from N number of point according to the corresponding well location coordinate of the N number of point
Point is the nearest point of the reference axis of well location coordinate described in distance in N number of point；
Determining module, for passing through the position between other points in the datum mark and N number of point in addition to the datum mark
Relationship is set, determines the corresponding well location coordinate of initial boundary point in N number of point, the positional relationship is used to indicate other described points
With the azimuth-range between the datum mark；
The determining module is also used to be determined the multiple initial according to the corresponding well location coordinate of the multiple initial boundary point
The corresponding barycentric coodinates of boundary point；
The determining module is also used to determine the expansion of N number of point according to the corresponding barycentric coodinates of the multiple initial boundary point
Open up model；
The determining module is also used to according to the extended model, the corresponding well location coordinate of the multiple initial boundary point and again
Heart coordinate determines the boundary of the reservoir model of N number of point, so that other oil of the corresponding N mouthfuls of well of the reservoir model and surrounding
Model corresponding well in hiding is kept apart.
7. device according to claim 6, which is characterized in that the determining module, including：
Sequencing unit, for arranging N number of point according to the positional relationship between the datum mark and other described points
Sequence, the corresponding well location coordinate of N number of point after being sorted；
Determination unit, for determining each point in N number of point according to the corresponding well location coordinate of N number of point after the sequence
With the positional relationship between the point that is connected, the point that marginal position is located in N number of point is determined as the initial boundary point.
8. device according to claim 7, which is characterized in that
The determination unit, for determining the benchmark that each pair of point is answered according to the corresponding well location coordinate of N number of point after the sequence
Positional relationship between line and each point and the reference line, the reference line are the two neighboring of each point
Line between point；According to the positional relationship and the reference line answered of each pair of point between each point and the reference line,
The point for being located at marginal position in N number of point is determined as the initial boundary point by the position for traversing each point.
9. device according to claim 6, which is characterized in that
The determining module is also used to terminal and obtains the corresponding spreading coefficient of N number of point, according to the multiple initial boundary point
Corresponding barycentric coodinates and the spreading coefficient, construct the extended model of N number of point, and the spreading coefficient is used to indicate described
The intensity that the corresponding well location coordinate of N number of point is distributed in space.
10. device according to claim 6, which is characterized in that
The determining module is also used to according to fixed extended model, the corresponding well location coordinate of the multiple initial boundary point
Each initial boundary point is extended, multiple boundary points are obtained by following formula one with the barycentric coodinates；
Formula one：
Wherein, (Xj', Yj') be extension after j-th of initial boundary point, that is to say j-th of boundary point, (Xj, Yj) at the beginning of j-th
The corresponding well location coordinate of beginning boundary point,For the corresponding barycentric coodinates of initial boundary point, α is spreading coefficient；It will be described
Multiple boundary points are successively attached, and the region that multiple boundary points after connection are surrounded is as the corresponding reservoir model of N number of point
Included region, and using the boundary surrounded as the boundary of the reservoir model.
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