CN105401927A - Method and device for determining well pattern and well spacing of oil reservoir - Google Patents
Method and device for determining well pattern and well spacing of oil reservoir Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The invention provides a method and a device for determining the well pattern and well spacing of an oil reservoir well. The method for determining the well pattern and well spacing of the oil reservoir well comprises the following steps: comparing stratums of the overall oil reservoir and dividing sedimentary facies and stratum types; by selecting a sedimentary face and stratum type planar combination mode, calculating water-flooding control levels of different injection-production well patterns corresponding to different sedimentary face and stratum type planar combination modes; determining the sedimentary face and stratum type planar combination mode of different stratum positions of a to-be-measured area and geological reserves at different planar combination modes; calculating the integral water-flooding control level of the to-be-measured area at different injection-production well pattern conditions based on the geological reserves and the water-flooding control levels of different injection-production well patterns; drawing a curve chart of the integral water-flooding control level of the to-be-measured area and the total well amount at different well patterns and different well spacing, and determining the well pattern and the well spacing of the oil reservoir of the to-be-measured area according to the curve chart. By the device and the method disclosed by the invention, reasonable well pattern and well spacing of the oil reservoir are determined; meanwhile, the device and the method are combined with numerical simulation research results to improve the accuracy and reliability of evaluation results.
Description
Technical field
The present invention relates to the Well Pattern And Spacing technical field of oil reservoir, particularly a kind of oil reservoir Well Pattern And Spacing defining method and device.
Background technology
Rational Well Pattern And Spacing is the key technology countermeasure of oil reservoir Efficient Development, and be the development technique countermeasure must carrying out demonstration in detail in oil reservoir development scheme, be also perplex scientific research personnel technical barrier for many years always.For the demonstration of Reasonable Well Pattern And Spacing in development plan except adopting empirical formula or analogy method and proving, the general method for numerical simulation that adopts is proved in detail, the reliability proving result then depends on the degree of reliability of geological model foundation and the level of numerical simulation study personnel, therefore the method also also exists certain limitation and uncertainty, is sometimes difficult to obtain reliable result.After latter period of oilfield development has a large amount of injection-production well and water filling response data, the reasonability of current Well Pattern And Spacing can be evaluated by evaluating water drive control.Therefore, how based on geological research understanding, based on the water drive control in the different Well Pattern And Spacing situation of reservoir engineering research evaluation, analyzing the reasonability of different Well Pattern And Spacing, is the difficult problem needing solution badly.
Summary of the invention
Embodiments provide a kind of oil reservoir Well Pattern And Spacing defining method, with based on geological research understanding and the water drive control in the different Well Pattern And Spacing situation of reservoir engineering research evaluation, analyze the reasonability of different Well Pattern And Spacing.
To achieve these goals, embodiments provide a kind of oil reservoir Well Pattern And Spacing defining method, this oil reservoir Well Pattern And Spacing defining method comprises:
Strata Comparison is carried out to full oil reservoir, marks off sedimentary facies and Reservoir type;
Select sedimentary facies and the Reservoir type plane combination pattern of full oil reservoir, and calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
Determine the sedimentary facies of the different layers position of block to be measured and the oil in place of Reservoir type plane combination pattern and Different Plane integrated mode thereof;
Based on the water drive control of described oil in place and described different injection production well arrangements, calculate the water drive control of block integral to be measured in different injection production well arrangements situation;
Draw the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map.
In one embodiment, calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
Different Plane integrated mode is divided into equally spaced grid;
Determine the connectedness between water injection well and producing well, determine that water injection well can involve/grid the area of displacement according to described connectedness;
According to the water drive control of the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
In one embodiment, calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
The water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern is calculated according to the area be communicated with between water injection well producing well.
In one embodiment, calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
According to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, calculate the water drive control of different injection production well arrangements corresponding to block to be measured.
In one embodiment, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map, comprising: select the flex point on described curve map to correspond to the Well Pattern And Spacing of this block to be measured.
In one embodiment, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map, comprising: the Well Pattern And Spacing selecting water drive control to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
To achieve these goals, the embodiment of the present invention additionally provides a kind of oil reservoir Well Pattern And Spacing determining device, and it comprises:
Division unit, for carrying out Strata Comparison to full oil reservoir, marks off sedimentary facies and Reservoir type;
First computing unit, for selecting sedimentary facies and the Reservoir type plane combination pattern of full oil reservoir, and calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
Oil in place determining unit, for the oil in place of the sedimentary facies and Reservoir type plane combination pattern and Different Plane integrated mode thereof of determining the different layers position of block to be measured;
Second computing unit, for the water drive control based on described oil in place and described different injection production well arrangements, the water drive control of block integral to be measured in calculating different injection production well arrangements situation;
Oil reservoir Well Pattern And Spacing determining unit, for drawing the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determines the Well Pattern And Spacing of block to be measured according to described curve map.
In one embodiment, described first computing unit comprises:
Stress and strain model module, for being divided into equally spaced grid by Different Plane integrated mode;
According to described connectedness, areal calculation unit, for determining the connectedness between water injection well and producing well, determines that water injection well can involve/grid the area of displacement;
Water drive control computing module, for the water drive control according to the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
In one embodiment, described first computing unit specifically for:
The water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern is calculated according to the area be communicated with between water injection well producing well.
In one embodiment, described first computing unit specifically for:
According to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, calculate the water drive control of different injection production well arrangements corresponding to block to be measured.
In one embodiment, described oil reservoir Well Pattern And Spacing determining unit specifically for: select the flex point on described curve map to correspond to the Well Pattern And Spacing of this block to be measured.
In one embodiment, described oil reservoir Well Pattern And Spacing determining unit specifically for: the Well Pattern And Spacing selecting water drive control to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
The present invention determines rational oil reservoir Well Pattern And Spacing, also combines with results of numerical simulation simultaneously, improves accuracy and the reliability of evaluation result.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the oil reservoir Well Pattern And Spacing defining method flow chart of the embodiment of the present invention;
Fig. 2 is the water drive control calculation flow chart of different injection production well arrangements corresponding to the different sedimentary facies of the embodiment of the present invention and Reservoir type plane combination pattern;
Fig. 3 A and Fig. 3 B is the typical reservoir plane combination in certain oil field pattern diagram in the embodiment of the present invention;
Fig. 4 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 1414m;
Fig. 4 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 1414m;
Fig. 5 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 1000m;
Fig. 5 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 1000m;
Fig. 6 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 700m;
Fig. 6 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 700m;
Fig. 7 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 500m;
Fig. 7 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 500m;
Fig. 8 is injection-production well number and water drive control comparison diagram in the different Well Pattern And Spacing situation of typical block of the embodiment of the present invention;
Fig. 9 is the structured flowchart of the oil reservoir Well Pattern And Spacing determining device of the embodiment of the present invention;
Figure 10 is the structured flowchart of the first computing unit 902 of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of oil reservoir Well Pattern And Spacing defining method, as shown in Figure 1, this oil reservoir Well Pattern And Spacing defining method comprises:
S101: carry out Strata Comparison to full oil reservoir, marks off sedimentary facies and Reservoir type;
S102: sedimentary facies and the Reservoir type plane combination pattern of selecting full oil reservoir, and the water drive control calculating different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
S103: determine the sedimentary facies of the different layers position of block to be measured and the oil in place of Reservoir type plane combination pattern and Different Plane integrated mode thereof;
S104: based on the water drive control of described oil in place and described different injection production well arrangements, calculates the water drive control of block integral to be measured in different injection production well arrangements situation;
S105: draw the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map.
Flow process is as shown in Figure 1 known, the present invention is based on the fine dissection of the typical block of the full oil reservoir chosen, determine distribution and the connected relation of dissimilar reservoir, by contrasting the water drive control of different Well Pattern And Spacing, finally determine rational Well Pattern And Spacing, inherently determine oil reservoir Reasonable Well Pattern And Spacing, can also combine with results of numerical simulation simultaneously, greatly improve the accuracy of evaluation result, reliability.
In S102, generally need to select sedimentary facies representative in full oil reservoir and Reservoir type plane combination pattern.During concrete enforcement, as shown in Figure 2, calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
S201: Different Plane integrated mode is divided into equally spaced grid;
According to described connectedness, S202: determine the connectedness between water injection well and producing well, determines that water injection well can involve/grid the area of displacement;
S203: according to the water drive control of the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
Except the method for the water drive control of the different sedimentary facies of the calculating shown in Fig. 2 and different injection production well arrangements corresponding to Reservoir type plane combination pattern, the present invention can also adopt other computational methods.In one embodiment, the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern can be calculated according to the area be communicated with between water injection well producing well.In another embodiment, according to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, the water drive control of different injection production well arrangements corresponding to block to be measured can also be calculated.
In S105, determine that according to curve map the method for the oil reservoir Well Pattern And Spacing of block to be measured has a variety of, in an embodiment, the flex point on described curve map can be selected to correspond to the Well Pattern And Spacing of this block to be measured.In another embodiment, the Well Pattern And Spacing that water drive control can be selected to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
In order to oil reservoir Well Pattern And Spacing defining method of the present invention is better described, illustrate oil reservoir Well Pattern And Spacing defining method with certain oil field example below.Certain oil field typical reservoir plane combination pattern is respectively shown in Fig. 3 A and Fig. 3 B, Fig. 3 A is depicted as I quasi-mode, and Fig. 3 B is depicted as II quasi-mode, mainly comprises channel sand and mud stone two kinds of reservoirs, be interconnected between channel sand, be not all communicated with between mud stone, between mud stone with river course.I quasi-mode river course is wide, scale large, overall connectedness is good, and II quasi-mode river course is narrow, small scale, overall connectedness are general.Therefore, for a certain fixing well pattern, the water drive control of I quasi-mode should higher than the water drive control of II quasi-mode.
Fig. 4 A to Fig. 7 B respectively illustrates I quasi-mode and the water drive control of II quasi-mode under different Well Pattern And Spacing condition.Fig. 4 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 1414m, water drive control is 68.47%, Fig. 4 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 1414m, water drive control is 30.73%, total well number 18 mouthfuls (, by 1/4 mental arithmetic, end hole is by 1/2 mental arithmetic for corner well).Fig. 5 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 1000m, water drive control is 74.10%, Fig. 5 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 1000m, water drive control is 38.81%, total well number 36 mouthfuls (, by 1/4 mental arithmetic, end hole is by 1/2 mental arithmetic for corner well).Fig. 6 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 700m, water drive control is 82.02%, Fig. 6 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 700m, water drive control is 65.16%, total well number 72 mouthfuls (, by 1/4 mental arithmetic, end hole is by 1/2 mental arithmetic for corner well).Fig. 7 A is the water drive control schematic diagram of I quasi-mode under anti-9 the method well patterns of 500m, water drive control is 85.21%, Fig. 7 B is the water drive control schematic diagram of II quasi-mode under anti-9 the method well patterns of 500m, water drive control is 80.054%, total well number 72 mouthfuls (, by 1/4 mental arithmetic, end hole is by 1/2 mental arithmetic for corner well).
The computational methods of the water drive control of certain quasi-mode under certain Well Pattern And Spacing condition are described for the I quasi-mode in Fig. 4 A below.First, I quasi-mode is divided into equally spaced grid block, each grid block area is designated as 1, totally 144 grid blocks, and wherein channel sand grid block only has 108.To anti-9 flooding patterns of the 1414m of I quasi-mode configuration rule, determine the connectedness between water injection well and producing well, thus determine that water injection well can involve/grid the area of displacement, as shown in the numeral in Fig. 4 A, the gross area of floood conformance in this well pattern situation of statistics I quasi-mode, be 73.95, thus the water drive control calculating anti-9 flooding patterns of I quasi-mode 1414m is 73.95/108*100%=68.47%.
In like manner, the water drive control of different mode under different Well Pattern And Spacing condition can be calculated.Certainly, for the computational methods of water drive control, other modes also can be adopted to calculate, the area or reserves that are communicated with between water injection well producing well as can be directly calculated are to calculate water drive control.
This oil reservoir is 2 layers of sandstone oil reservoir, and when selecting this oil reservoir typical case's block, this block first floor is I quasi-mode, and oil in place is 100,000 sides, and the second layer is II quasi-mode, and oil in place is 2.5 ten thousand sides.Therefore, under 4 kinds of Well Pattern And Spacing conditions shown in Fig. 4 A to Fig. 7 B, the water drive control that in S104, this block models is corresponding calculates and is respectively:
Anti-9 the method well patterns of 1414m: (10*68.47%+2.5*30.73%)/(10+2.5)=60.92%
Anti-9 the method well patterns of 1000m: (10*74.10%+2.5*38.81%)/(10+2.5)=67.04%
700m Five-point method pattern: (10*82.02%+2.5*65.16%)/(10+2.5)=78.65%
500m Five-point method pattern: (10*85.21%+2.5*80.054%)/(10+2.5)=84.18%
In S105, draw the curve of representative block water drive control and the total well number of different Well Pattern And Spacing, as shown in Figure 8, knee of curve corresponds to the Reasonable Well Pattern And Spacing of this block, and this knee of curve is evident as the 700m Five-point method pattern that total well number is 72 mouthfuls of wells.Namely this oil reservoir adopts the exploitation of 700m Five-point method pattern the most reasonable.
The embodiment of the present invention additionally provides a kind of oil reservoir Well Pattern And Spacing determining device, as shown in Figure 9, this oil reservoir Well Pattern And Spacing determining device comprises: division unit 901, the first computing unit 902, oil in place determining unit 903, second computing unit 904 and oil reservoir Well Pattern And Spacing determining unit 905.
Division unit 901, for carrying out Strata Comparison to full oil reservoir, marks off sedimentary facies and Reservoir type;
First computing unit 902 for selecting sedimentary facies and the Reservoir type plane combination pattern of full oil reservoir, and calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
Oil in place determining unit 903 is for the oil in place of the sedimentary facies and Reservoir type plane combination pattern and Different Plane integrated mode thereof of determining the different layers position of block to be measured;
Second computing unit 904, for the water drive control based on described oil in place and described different injection production well arrangements, calculates the water drive control of block integral to be measured in different injection production well arrangements situation;
Oil reservoir Well Pattern And Spacing determining unit 905, for drawing the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determines the Well Pattern And Spacing of block to be measured according to described curve map.
In one embodiment, as shown in Figure 10, the first computing unit 902 comprises: stress and strain model module 1001, areal calculation unit 1002 and water drive control computing module 1003.
Stress and strain model module 1001 is for being divided into equally spaced grid by Different Plane integrated mode;
According to described connectedness, areal calculation unit 1002, for determining the connectedness between water injection well and producing well, determines that water injection well can involve/grid the area of displacement;
Water drive control computing module 1003 is for the water drive control according to the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
In one embodiment, the first computing unit 902 is specifically for the water drive control that calculates different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern according to the area be communicated with between water injection well producing well.
In one embodiment, first computing unit 902 specifically for: according to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, calculate the water drive control of different injection production well arrangements corresponding to block to be measured.
In one embodiment, described oil reservoir Well Pattern And Spacing determining unit 903 specifically for: select the flex point on described curve map to correspond to the Well Pattern And Spacing of this block to be measured.
In one embodiment, described oil reservoir Well Pattern And Spacing determining unit 903 specifically for: the Well Pattern And Spacing selecting water drive control to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
The present invention determines rational oil reservoir Well Pattern And Spacing, also combines with results of numerical simulation simultaneously, improves accuracy and the reliability of evaluation result.
The present invention applies at home and in the development plan establishment of external large-scale marine facies sandstone oil reservoir, employing the present invention is predicted the outcome and to contrast with full oil reservoir Careful Numerical Simulation result, both results are also very consistent, demonstrate reliability of the present invention especially.Practical application effect in multiple oil field is good, predicts the outcome reliable, reduces the risk of oil reservoir development, improve oil reservoir development benefit.The technology of the present invention is all applicable in continental sandstone oil reservoir or marine facies sandstone oil reservoir.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Apply specific embodiment in the present invention to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. an oil reservoir Well Pattern And Spacing defining method, is characterized in that, comprising:
Strata Comparison is carried out to full oil reservoir, marks off sedimentary facies and Reservoir type;
Select sedimentary facies and the Reservoir type plane combination pattern of full oil reservoir, and calculate the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
Determine the sedimentary facies of the different layers position of block to be measured and the oil in place of Reservoir type plane combination pattern and Different Plane integrated mode thereof;
Based on the water drive control of described oil in place and described different injection production well arrangements, calculate the water drive control of block integral to be measured in different injection production well arrangements situation;
Draw the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map.
2. oil reservoir Well Pattern And Spacing defining method according to claim 1, is characterized in that, calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
Different Plane integrated mode is divided into equally spaced grid;
Determine the connectedness between water injection well and producing well, determine that water injection well can involve/grid the area of displacement according to described connectedness;
According to the water drive control of the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
3. oil reservoir Well Pattern And Spacing defining method according to claim 1, is characterized in that, calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
The water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern is calculated according to the area be communicated with between water injection well producing well.
4. oil reservoir Well Pattern And Spacing defining method according to claim 1, is characterized in that, calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern, comprising:
According to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, calculate the water drive control of different injection production well arrangements corresponding to block to be measured.
5. oil reservoir Well Pattern And Spacing defining method according to claim 1, is characterized in that, determines the oil reservoir Well Pattern And Spacing of block to be measured, comprising according to described curve map: select the flex point on described curve map to correspond to the Well Pattern And Spacing of this block to be measured.
6. oil reservoir Well Pattern And Spacing defining method according to claim 1, it is characterized in that, determine the oil reservoir Well Pattern And Spacing of block to be measured according to described curve map, comprising: the Well Pattern And Spacing selecting water drive control to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
7. an oil reservoir Well Pattern And Spacing determining device, is characterized in that, comprising:
Division unit, for carrying out Strata Comparison to full oil reservoir, marks off sedimentary facies and Reservoir type;
First computing unit, for selecting sedimentary facies and the Reservoir type plane combination pattern of full oil reservoir, and calculates the water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern;
Oil in place determining unit, for the oil in place of the sedimentary facies and Reservoir type plane combination pattern and Different Plane integrated mode thereof of determining the different layers position of block to be measured;
Second computing unit, for the water drive control based on described oil in place and described different injection production well arrangements, the water drive control of block integral to be measured in calculating different injection production well arrangements situation;
Oil reservoir Well Pattern And Spacing determining unit, for drawing the water drive control of block integral to be measured and the curve map of the total well number of different Well Pattern And Spacing, determines the Well Pattern And Spacing of block to be measured according to described curve map.
8. oil reservoir Well Pattern And Spacing determining device according to claim 7, is characterized in that, described first computing unit comprises:
Stress and strain model module, for being divided into equally spaced grid by Different Plane integrated mode;
According to described connectedness, areal calculation unit, for determining the connectedness between water injection well and producing well, determines that water injection well can involve/grid the area of displacement;
Water drive control computing module, for the water drive control according to the different sedimentary facies of described grid areal calculation and different injection production well arrangements corresponding to Reservoir type plane combination pattern.
9. oil reservoir Well Pattern And Spacing determining device according to claim 7, is characterized in that, described first computing unit specifically for:
The water drive control of different sedimentary facies and different injection production well arrangements corresponding to Reservoir type plane combination pattern is calculated according to the area be communicated with between water injection well producing well.
10. oil reservoir Well Pattern And Spacing determining device according to claim 7, is characterized in that, described first computing unit specifically for:
According to the reserves of the different sedimentary facies in block different layers position to be measured and Reservoir type plane combination pattern and water drive control evaluation result corresponding to different injection production well arrangements, calculate the water drive control of different injection production well arrangements corresponding to block to be measured.
11. oil reservoir Well Pattern And Spacing determining devices according to claim 7, is characterized in that, described oil reservoir Well Pattern And Spacing determining unit specifically for: select the flex point on described curve map to correspond to the Well Pattern And Spacing of this block to be measured.
12. oil reservoir Well Pattern And Spacing determining devices according to claim 7, is characterized in that, described oil reservoir Well Pattern And Spacing determining unit specifically for: the Well Pattern And Spacing selecting water drive control to be greater than setting threshold value is the Well Pattern And Spacing of this block to be measured.
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