CN109973071A - Carbonate rock connected unit connected relation determination method and device - Google Patents
Carbonate rock connected unit connected relation determination method and device Download PDFInfo
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- CN109973071A CN109973071A CN201711404870.5A CN201711404870A CN109973071A CN 109973071 A CN109973071 A CN 109973071A CN 201711404870 A CN201711404870 A CN 201711404870A CN 109973071 A CN109973071 A CN 109973071A
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- 238000000034 method Methods 0.000 title claims abstract description 70
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 58
- 239000011435 rock Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 claims abstract description 72
- 238000005065 mining Methods 0.000 claims abstract description 13
- 238000004458 analytical method Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000004391 petroleum recovery Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Mining & Mineral Resources (AREA)
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Abstract
The present invention provides a kind of carbonate rock connected unit connected relation determination method and device, this method comprises: obtaining the creation data of any two mouthfuls of individual wells in region to be determined, and the production index curve of the first individual well and the second individual well in two mouthfuls of individual wells is determined according to creation data.The slope difference of the production index curve of the first individual well and the production index curve of the second individual well is determined according to the production index curve of the first individual well and the second individual well.The connected relation of the first individual well and the second individual well is determined according to slope difference.Therefore carbonate rock connected unit connected relation determination method and device provided by the invention are capable of the connected relation between two mouthfuls of individual wells of judgement of simple, intuitive, provide guidance instruction for oil-gas mining.
Description
Technical field
The present invention relates to the exploration of carbonate reservoir and development technique field more particularly to a kind of connection of carbonate rock are single
First connected relation determination method and device.
Background technique
The type of carbonate reservoir is mainly fractured-vuggy reservoir, and it is multiple that heterogeneity causes by force it to be connected to connected relation
Miscellaneous, it is " well one hiding " feature that oil-gas reservoir, which produces feature common manifestation, and different " individual wells " also has completely different oil gas
Water relationship causes the reservoir characteristics of fracture hole type oil-gas reservoir and common clastic oil-gas pools completely different.It is normal for such reservoir
Recovery method is water flood petroleum recovery, i.e., by choosing water injection well around producing well, fills the water to water injection well and utilize water filling
Connected relation between well and producing well makes water flow to oil recovery bottom and returns oil extraction gas to earth's surface completion oil-gas mining.Therefore it adopts
The connected relation judgement of both oil well and water injection well is affected to the oil-gas mining of carbonate reservoir.
The connected relation of water injection well and producing well determines to be mainly to realize by way of moving static data and combining at present,
Wherein static data refer to searched before judgement with transfer having in region to be determined be connected to all water injection wells of possibility with
The single well data of producing well contains in its fluid properties, historical production data and production process in these single well datas
Formation pressure data etc..And dynamic data refers to through means acquisition Real-time Logging data of specifically logging well, these well logging means
Addition tracer method is generally included, the company of water injection well and producing well is determined according to the flow path of tracer and domain of the existence
Clearance system.Well logging means further include interference test method, by testing remaining individual well internal pressure to a bite individual well internal pressurization
The variation of value therefore, it is determined that there are connected relations with the individual well with the presence or absence of certain individual wells in remaining individual well, and then passes through two mouthfuls
The connected relation of individual well instructs actual oil recovery production work.
However the method that above-mentioned dynamic static data combines requires to look up in decision process or obtains a large amount of data money
Material is to support the judgment basis in later period and guarantee the accuracy of judgement result, and it also requires the data of assistant experiment method, because
This and decision process is relatively complicated, be unfavorable for operating.Further, if the data of acquisition, which does not also result in, determines that result is quasi- comprehensively
True property reduces, therefore can not accurately instruct the production work of practical carbonate reservoir.
Summary of the invention
In order to solve the problems, such as that at least one mentioned in background technique, the present invention provide a kind of carbonate rock connected unit company
Clearance system determination method and device, the connected relation capableing of between two mouthfuls of individual wells of judgement of simple, intuitive, provide for oil-gas mining
Guidance instruction.
To achieve the goals above, carbonate rock connected unit connected relation determination method provided by the invention, comprising:
The creation data of any two mouthfuls of individual wells in region to be determined is obtained, and is determined in two mouthfuls of individual wells according to creation data
The production index curve of one individual well and the second individual well.
The production index curve and second of the first individual well is determined according to the production index curve of the first individual well and the second individual well
The slope difference of the production index curve of individual well.
The connected relation of the first individual well and the second individual well is determined according to slope difference.
In above-mentioned carbonate rock connected unit connected relation determination method, optionally, obtain in region to be determined
The creation data of any two mouthfuls of individual wells, and determine that the production of the first individual well and the second individual well in two mouthfuls of individual wells refers to according to creation data
Show curve, specifically include:
Obtain the first individual well and the second individual well oil-air pressure value in process of production and oil gas flow value.
The production index curve of the first individual well is determined according to the oil-air pressure value of the first individual well and oil gas flow value.
The production index curve of the second individual well is determined according to the oil-air pressure value of the second individual well and oil gas flow value.
In above-mentioned carbonate rock connected unit connected relation determination method, optionally, according to the oil of the first individual well
Gas value and oil gas flow value determine the production index curve of the first individual well, specifically include:
Determine that the oil-air pressure in the unit interval of the first individual well drops according to the oil-air pressure value of the first individual well.
The oil gas integrated flow value in the unit interval of the first individual well is determined according to the oil gas flow value of the first individual well.
The first individual well is determined with oil gas integrated flow value according to the oil-air pressure drop in the unit interval of the first individual well
Oil-air pressure drop-oil gas integrated flow value curve.
In above-mentioned carbonate rock connected unit connected relation determination method, optionally, according to the oil of the second individual well
Gas value and oil gas flow value determine the production index curve of the second individual well, specifically include:
Determine that the oil-air pressure in the unit interval of the second individual well drops according to the oil-air pressure value of the second individual well.
The oil gas integrated flow value in the unit interval of the second individual well is determined according to the oil gas flow value of the second individual well.
The second individual well is determined with oil gas integrated flow value according to the oil-air pressure drop in the unit interval of the second individual well
Oil-air pressure drop-oil gas integrated flow value curve.
In above-mentioned carbonate rock connected unit connected relation determination method, optionally, according to the first individual well and
The production index curve of two individual wells determines the slope of the production index curve of the first individual well and the production index curve of the second individual well
Difference specifically includes:
Determine oil-air pressure drop-oil gas integrated flow value curve of the first individual well in unit interval by curve-fitting method
Fit slope value.
Determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in unit interval by curve-fitting method
Fit slope value.
According to the fit slope value of the fit slope value of the unit interval of the first individual well and the unit time of the second individual well
Determine the first individual well and the second individual well in the slope difference of unit interval.
In above-mentioned carbonate rock connected unit connected relation determination method, optionally, determined according to slope difference
The connected relation of first individual well and the second individual well, specifically includes:
Judge the first individual well and the second individual well in the slope difference of unit interval and the size of preset threshold.
If the first individual well and the second individual well are less than preset threshold in the slope difference of unit interval, it is determined that the first individual well
Meet oil-gas mining standard with the connected relation of the second individual well.
The present invention also provides a kind of carbonate rock connected unit connected relation decision makers, comprising:
Module is obtained, for obtaining the creation data of any two mouthfuls of individual wells in region to be determined, and it is true according to creation data
The production index curve of first individual well and the second individual well in fixed two mouthfuls of individual wells.
First analysis module, for determining the life of the first individual well according to the production index curve of the first individual well and the second individual well
Produce the slope difference of the production index curve of indicative curve and the second individual well.
Second analysis module, for determining the connected relation of the first individual well and the second individual well according to slope difference.
In above-mentioned carbonate rock connected unit connected relation decision maker, optionally, in the first analysis module also
Include:
First curve generation module, the unit interval of the first individual well is determined for the oil-air pressure value according to the first individual well
Interior oil-air pressure drop.
It is also used to determine the accumulative stream of oil gas in the unit interval of the first individual well according to the oil gas flow value of the first individual well
Magnitude.
The oil-air pressure drop and oil gas integrated flow value being also used in the unit interval according to the first individual well determine first
The oil-air pressure drop of individual well-oil gas integrated flow value curve.
In above-mentioned carbonate rock connected unit connected relation decision maker, optionally, in the first analysis module also
Include:
Second curve produces module, and the unit interval of the second individual well is determined for the oil-air pressure value according to the second individual well
Interior oil-air pressure drop.
It is also used to determine the accumulative stream of oil gas in the unit interval of the second individual well according to the oil gas flow value of the second individual well
Magnitude.
The oil-air pressure drop and oil gas integrated flow value being also used in the unit interval according to the second individual well determine second
The oil-air pressure drop of individual well-oil gas integrated flow value curve.
In above-mentioned carbonate rock connected unit connected relation decision maker, optionally, in the first analysis module also
Include:
Slope difference generation module, oil-air pressure drop-oil gas for determining the first individual well by curve-fitting method are accumulative
Fit slope value of the flow value curve in unit interval.
It is also used to determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in unit by curve-fitting method
The fit slope value of period.
It is also used to the fitting of the unit time of the fit slope value and the second individual well according to the unit interval of the first individual well
Slope value determines the first individual well and the second individual well in the slope difference of unit interval.
Carbonate rock connected unit connected relation determination method and device provided by the invention, by obtaining region to be determined
The creation data of interior any two mouthfuls of individual wells, wherein creation data mainly includes the oil of the first individual well and the second individual well in two mouthfuls of individual wells
Air pressure force value and oil gas flow value, thus according to oil-air pressure drop and oil gas integrated flow value in the first individual well unit interval
Oil-air pressure drop-oil gas integrated flow value the curve for determining the first individual well, according to the oil gas pressure in the second individual well unit interval
Power drop and oil gas integrated flow value determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well, then pass through curve
Fitting process determines fitting of the oil-air pressure drop-oil gas integrated flow value curve in unit interval of the first individual well and the second individual well
Slope value, it is final to determine the first individual well and the second individual well fit slope value and slope difference, judge slope difference and preset threshold
Size, when slope difference be less than preset threshold, it is determined that the connected relation of the first individual well and the second individual well meets oil-gas mining
Standard, so that the connected relation between two mouthfuls of individual wells of the judgement of simple, intuitive, provides the suggestion of directiveness for oil-gas mining.
Construction and its other goals of the invention and beneficial effect of the invention will be in conjunction with the accompanying drawings to preferred reality
Apply the description of example and more obvious and easy to understand.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to make simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the process signal for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides
Figure；
Fig. 2 is that the determining production for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides refers to
Show the flow diagram of curve；
Fig. 3 is that the determination first for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides is single
Well oil-air pressure drop-oil gas integrated flow value curve flow diagram；
Fig. 4 is that the determination second for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides is single
Well oil-air pressure drop-oil gas integrated flow value curve flow diagram；
Fig. 5 is the determination slope differences for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides
The flow diagram of value；
Fig. 6 is that determining for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides is connected to pass
The flow diagram of system；
Fig. 7 is the structural representation that carbonate rock connected unit connected relation provided by Embodiment 2 of the present invention determines position
Figure；
Fig. 8 is the first analysis mould of carbonate rock connected unit connected relation decision maker provided by Embodiment 2 of the present invention
The structural schematic diagram of block；
Fig. 9 is the structural representation for the carbonate rock connected unit connected relation decision maker that the embodiment of the present invention three provides
Figure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is the process signal for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides
Figure.Fig. 2 is that determining for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides produces instruction song
The flow diagram of line.Fig. 3 be the carbonate rock connected unit connected relation determination method that provides of the embodiment of the present invention one really
The flow diagram of fixed first individual well oil-air pressure drop-oil gas integrated flow value curve.Fig. 4 is what the embodiment of the present invention one provided
Determination the second individual well oil-air pressure drop-oil gas integrated flow value curve of carbonate rock connected unit connected relation determination method
Flow diagram.Fig. 5 is that the determination for the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides is oblique
The flow diagram of rate difference.Fig. 6 is the carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides
Determination connected relation flow diagram.
As shown in Figures 1 to 6, the embodiment of the present invention one provides a kind of carbonate rock connected unit connected relation judgement side
Method, comprising:
S1: the creation data of any two mouthfuls of individual wells in region to be determined is obtained, and two mouthfuls of individual wells are determined according to creation data
In the first individual well and the second individual well production index curve.
S2: the production index curve and of the first individual well is determined according to the production index curve of the first individual well and the second individual well
The slope difference of the production index curve of two individual wells.
S3: the connected relation of the first individual well and the second individual well is determined according to slope difference.
It should be noted that determination method provided in this embodiment can be used for the pass of the connection between any two mouthfuls of individual wells
System, any two mouthfuls of individual wells can be water injection well and producing well during oil-gas mining, be also possible in region to be determined
Any two mouthfuls of individual wells, it is not limited to water injection well and producing well.The creation data for obtaining two mouthfuls of individual wells can be it and produce
The production process tight association of the data value of real-time monitoring in journey, the data value and individual well, therefore determined by creation data
Connected relation is more in line with actual production process, determines that result is more accurate reliable.
Further, it in the creation data for obtaining any two mouthfuls of individual wells in region to be determined, and is determined according to creation data
In two mouthfuls of individual wells the step of the production index curve of the first individual well and the second individual well in, can also include it is following step by step:
S11: the first individual well and the second individual well oil-air pressure value in process of production and oil gas flow value are obtained.
S12: the production index curve of the first individual well is determined according to the oil-air pressure value of the first individual well and oil gas flow value.
S13: the production index curve of the second individual well is determined according to the oil-air pressure value of the second individual well and oil gas flow value.
It should be noted that the creation data of the first individual well and the second individual well can be the oil-air pressure value in production process
With oil gas flow value, oil-air pressure value and oil gas flow value can be carried out by oil pressure gauge and flowmeter real-time monitoring, storage and
It calls.
Further, the production index curve of the first individual well is determined in the oil gas value and oil gas flow value according to the first individual well
The step of in, can also include it is following step by step:
S121: determine that the oil-air pressure in the unit interval of the first individual well drops according to the oil-air pressure value of the first individual well.
S122: the oil gas integrated flow in the unit interval of the first individual well is determined according to the oil gas flow value of the first individual well
Value.
S123: determine that first is single with oil gas integrated flow value according to the oil-air pressure drop in the unit interval of the first individual well
The oil-air pressure drop of well-oil gas integrated flow value curve.
Further, the production index curve of the second individual well is determined in the oil gas value and oil gas flow value according to the second individual well
The step of in, can also include it is following step by step:
S131: determine that the oil-air pressure in the unit interval of the second individual well drops according to the oil-air pressure value of the second individual well.
S132: the oil gas integrated flow in the unit interval of the second individual well is determined according to the oil gas flow value of the second individual well
Value.
S133: determine that second is single with oil gas integrated flow value according to the oil-air pressure drop in the unit interval of the second individual well
The oil-air pressure drop of well-oil gas integrated flow value curve.
It should be noted that determining each comfortable unit of the two by the oil-air pressure value of the first individual well and the second individual well first
The oil-air pressure of period drops, and wherein oil-air pressure drop refers to two with the pressure difference value between pressure face, passes through the first individual well
The oil gas integrated flow value that each comfortable unit interval of the two is determined with the oil gas flow value of the second individual well, to pass through oil gas pressure
Power drop and oil gas flow value determine the production index curve of the first individual well and the second individual well, the i.e. accumulative stream of oil-air pressure drop-oil gas
Magnitude curve.
Further, in the production instruction for determining the first individual well according to the production index curve of the first individual well and the second individual well
In the step of slope difference of the production index curve of curve and the second individual well, can also include it is following step by step:
S21: determine oil-air pressure drop-oil gas integrated flow value curve of the first individual well in unit by curve-fitting method
Between section fit slope value.
S22: determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in unit by curve-fitting method
Between section fit slope value.
S23: the fitting according to the fit slope value of the unit interval of the first individual well and the unit time of the second individual well is oblique
Rate value determines the first individual well and the second individual well in the slope difference of unit interval.
It should be noted that determining oil-air pressure drop-oil of the first individual well and the second individual well respectively by curve-fitting method
The fit slope value of gas integrated flow value curve, wherein curve-fitting method can be according to oil-air pressure drop-oil gas integrated flow value
Curve actual form and needing selects specific fit approach, such as the fitting of least square method, semilog returns or straight line is quasi-
Legal etc., the present embodiment is to the specific method of fitting and is not limited, and is also not limited to above-mentioned example.
Further, in the step of determining the connected relation of the first individual well and the second individual well according to slope difference, may be used also
With include it is following step by step:
S31: judge the first individual well and the second individual well in the slope difference of unit interval and the size of preset threshold.
S32: if the first individual well and the second individual well are less than preset threshold in the slope difference of unit interval, it is determined that first
The connected relation of individual well and the second individual well meets oil-gas mining standard.
It should be noted that by judging the slope difference of the first individual well and the second individual well and the size of preset threshold, if
Slope difference is less than preset threshold, it is determined that the connected relation of the first individual well and the second individual well meets production standard.Wherein this is pre-
It is adjusted if threshold value can according to need, the present embodiment is to this and is not limited.
It should be pointed out that oil-air pressure drop-oil gas integrated flow value curve fitting of the first individual well and the second individual well
Slope value can be indicated by following formula:
Above-mentioned formula is the deformation of material balance formula, and wherein material balance formula indicates are as follows:
NPBo=NBoiCoiΔP
Wherein, NpIt is oil gas integrated flow value, m3；Δ P is oil-air pressure drop, MPa；N is geology oil gas gross reserves, m3；Boi
It is oil volume factor under reset pressure；CoiIt is total compression coefficient, 1/MPa；BoIt is oil volume factor under strata pressure.
In oil extraction, if two mouthfuls of individual wells belong in the same oil-water system of same connected unit, geology oil gas is total
Oil volume factor and total compression coefficient are all the same under reserves, reset pressure, and due to Bo=Boi[1-Co(P-Pi)], therefore
Oil volume factor is identical under the strata pressure of two mouthfuls of individual wells, and wherein P is prime stratum crude oil pressure value, PiIt is inscribed when being a certain
In-place oil pressure value, therefore (P-Pi) it is Δ P.Therefore according to above-mentioned formulae express it is found that working as the oil of two mouthfuls of individual wells
The difference of atmospheric pressure drop-oil gas integrated flow value curve fit slope value is smaller, and what the two then belonged to same connected relation can
Energy property is bigger.
The carbonate rock connected unit connected relation determination method that the embodiment of the present invention one provides, by obtaining area to be determined
The creation data of any two mouthfuls of individual wells in domain, wherein creation data mainly includes the first individual well and the second individual well in two mouthfuls of individual wells
Oil-air pressure value and oil gas flow value, thus according to oil-air pressure drop and oil gas integrated flow in the first individual well unit interval
It is worth the oil-air pressure drop-oil gas integrated flow value curve for determining the first individual well, according to the oil gas in the second individual well unit interval
Pressure drop and oil gas integrated flow value determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well, then pass through song
Line fitting process determines that oil-air pressure drop-oil gas integrated flow value curve of the first individual well and the second individual well is intended in unit interval
Slope value is closed, it is final to determine the first individual well and the second individual well fit slope value and slope difference, judge slope difference and default threshold
The size of value, when slope difference is less than preset threshold, it is determined that the connected relation of the first individual well and the second individual well meets oil gas and opens
Standard is adopted, so that the connected relation between two mouthfuls of individual wells of the judgement of simple, intuitive, provides the suggestion of directiveness for oil-gas mining.
Embodiment two
Fig. 7 is the structural representation that carbonate rock connected unit connected relation provided by Embodiment 2 of the present invention determines position
Figure.Fig. 8 is the first analysis module of carbonate rock connected unit connected relation decision maker provided by Embodiment 2 of the present invention
Structural schematic diagram.
Referring to shown in attached drawing 7 and attached drawing 8, on the basis of the above embodiment 1, the embodiment of the present invention two also provides one kind
Carbonate rock connected unit connected relation determines position 40, comprising:
Module 41 is obtained, for obtaining the creation data of any two mouthfuls of individual wells in region to be determined, and according to creation data
Determine the production index curve of the first individual well and the second individual well in two mouthfuls of individual wells.
First analysis module 42, for determining the first individual well according to the production index curve of the first individual well and the second individual well
The slope difference of the production index curve of production index curve and the second individual well.
Second analysis module 43, for determining the connected relation of the first individual well and the second individual well according to slope difference.
It should be noted that decision maker provided in this embodiment can be used for any two mouthfuls of individual wells in region to be determined
The judgement of connected relation, two mouthfuls of individual wells are not limited to water injection well and producing well.
Specifically, can also include: in the first analysis module 42
First curve generation module 51, the unit time of the first individual well is determined for the oil-air pressure value according to the first individual well
Oil-air pressure drop in section.
It is also used to determine the accumulative stream of oil gas in the unit interval of the first individual well according to the oil gas flow value of the first individual well
Magnitude.
The oil-air pressure drop and oil gas integrated flow value being also used in the unit interval according to the first individual well determine first
The oil-air pressure drop of individual well-oil gas integrated flow value curve.
It should be noted that the first curve generation module 51 provided in this embodiment is mainly according to the first of real-time monitoring
The oil-air pressure value and oil gas flow value of individual well determine the oil-air pressure drop and the accumulative stream of oil gas of the unit interval of the first individual well
Magnitude, so that it is determined that the production index curve of the first individual well, i.e. oil-air pressure drop-oil gas integrated flow value curve.
Specifically, can also include: in the first analysis module 42
Second curve produces module 52, and the unit time of the second individual well is determined for the oil-air pressure value according to the second individual well
Oil-air pressure drop in section.
It is also used to determine the accumulative stream of oil gas in the unit interval of the second individual well according to the oil gas flow value of the second individual well
Magnitude.
The oil-air pressure drop and oil gas integrated flow value being also used in the unit interval according to the second individual well determine second
The oil-air pressure drop of individual well-oil gas integrated flow value curve.
It should be noted that the second curve generation module 52 provided in this embodiment is mainly according to the second of real-time monitoring
The oil-air pressure value and oil gas flow value of individual well determine the oil-air pressure drop and the accumulative stream of oil gas of the unit interval of the second individual well
Magnitude, so that it is determined that the production index curve of the second individual well, i.e. oil-air pressure drop-oil gas integrated flow value curve.
Specifically, in the first analysis module 42 further include:
Slope difference generation module 53, oil-air pressure drop-oil gas for determining the first individual well by curve-fitting method are tired
Flow value curve is counted in the fit slope value of unit interval.
It is also used to determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in unit by curve-fitting method
The fit slope value of period.
It is also used to the fitting of the unit time of the fit slope value and the second individual well according to the unit interval of the first individual well
Slope value determines the first individual well and the second individual well in the slope difference of unit interval.
It should be noted that slope difference generation module 53 provided in this embodiment mainly obtain respectively the first individual well and
The oil-air pressure drop of second individual well-oil gas integrated flow value curve is in the fit slope value of unit interval and the slope of the two
Difference.Carbonate rock connected unit connected relation provided in this embodiment determines that position 40 can also include fit slope difference pair
Than module 53, which is mainly used for comparing the slope difference of the first individual well and the second individual well with preset threshold,
To determine that the connected relation of the first individual well and the second individual well can satisfy the standard of production of hydrocarbons.Wherein, preset threshold can root
It is adjusted according to actual exploitation needs, the present embodiment is to this and is not limited.
Other technical characteristics are identical with embodiment one, and can obtain and the identical technical effect of embodiment one.
Carbonate rock connected unit connected relation provided by Embodiment 2 of the present invention determines position 40, to be determined by obtaining
The creation data of any two mouthfuls of individual wells in region, wherein creation data mainly includes the first individual well and the second individual well in two mouthfuls of individual wells
Oil-air pressure value and oil gas flow value, thus according to oil-air pressure drop and the accumulative stream of oil gas in the first individual well unit interval
Magnitude determines oil-air pressure drop-oil gas integrated flow value curve of the first individual well, according to the oil in the second individual well unit interval
Atmospheric pressure drop and oil gas integrated flow value determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well, then pass through
Curve-fitting method determines oil-air pressure drop-oil gas integrated flow value curve of the first individual well and the second individual well in unit interval
Fit slope value, it is final to determine the first individual well and the second individual well fit slope value and slope difference, judge slope difference and presets
The size of threshold value, when slope difference is less than preset threshold, it is determined that the connected relation of the first individual well and the second individual well meets oil gas
Exploitation standard, so that the connected relation between two mouthfuls of individual wells of the judgement of simple, intuitive, provides the suggestion of directiveness for oil-gas mining.
Embodiment three
Fig. 9 is the structural representation for the carbonate rock connected unit connected relation decision maker that the embodiment of the present invention three provides
Figure.
Referring to shown in attached drawing 9, on the basis of above-described embodiment one and embodiment two, the embodiment of the present invention three also provides one
Kind carbonate rock connected unit connected relation determines position 60, comprising:
Memory 61, for storing instruction；Specifically, the storage object of memory 61 includes software and module.Processor
62, the instruction for being stored in run memory 61, to execute carbonate rock connected unit provided in above-described embodiment one
Connected relation determination method.Processor 62 is by operation or executes the software program and/or module that are stored in memory 61, with
And the data being stored in memory 61 are called, execute the various function that the carbonate rock connected unit connected relation determines position 60
It can and handle data.
Specifically, processor 62 is used to obtain the creation data of any two mouthfuls of individual wells in region to be determined, and according to production
Data determine the production index curve of the first individual well and the second individual well in two mouthfuls of individual wells.
Specifically, processor 62 can also be used to determine that first is single according to the production index curve of the first individual well and the second individual well
The slope difference of the production index curve of the production index curve of well and the second individual well.
Specifically, processor 62 can also be used in the connected relation for determining the first individual well and the second individual well according to slope difference.
Other technical characteristics are identical with embodiment one and embodiment two, and can obtain and embodiment one and embodiment two
Identical technical effect.
The carbonate rock connected unit connected relation that the embodiment of the present invention three provides determines position 50, to be determined by obtaining
The creation data of any two mouthfuls of individual wells in region, wherein creation data mainly includes the first individual well and the second individual well in two mouthfuls of individual wells
Oil-air pressure value and oil gas flow value, thus according to oil-air pressure drop and the accumulative stream of oil gas in the first individual well unit interval
Magnitude determines oil-air pressure drop-oil gas integrated flow value curve of the first individual well, according to the oil in the second individual well unit interval
Atmospheric pressure drop and oil gas integrated flow value determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well, then pass through
Curve-fitting method determines oil-air pressure drop-oil gas integrated flow value curve of the first individual well and the second individual well in unit interval
Fit slope value, it is final to determine the first individual well and the second individual well fit slope value and slope difference, judge slope difference and presets
The size of threshold value, when slope difference is less than preset threshold, it is determined that the connected relation of the first individual well and the second individual well meets oil gas
Exploitation standard, so that the connected relation between two mouthfuls of individual wells of the judgement of simple, intuitive, provides the suggestion of directiveness for oil-gas mining.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of carbonate rock connected unit connected relation determination method characterized by comprising
The creation data of any two mouthfuls of individual wells in region to be determined is obtained, and two mouthfuls of individual wells are determined according to the creation data
In the first individual well and the second individual well production index curve；
Determine that the production instruction of first individual well is bent according to the production index curve of first individual well and second individual well
The slope difference of the production index curve of line and second individual well；
The connected relation of first individual well and second individual well is determined according to the slope difference.
2. carbonate rock connected unit connected relation determination method according to claim 1, which is characterized in that the acquisition
The creation data of any two mouthfuls of individual wells in region to be determined, and the first list in two mouthfuls of individual wells is determined according to the creation data
The production index curve of well and the second individual well, specifically includes:
Obtain first individual well and second individual well oil-air pressure value in process of production and oil gas flow value；
Determine that the production of first individual well refers to according to the oil-air pressure value of first individual well and the oil gas flow value
Show curve；
Determine that the production of second individual well refers to according to the oil-air pressure value of second individual well and the oil gas flow value
Show curve.
3. carbonate rock connected unit connected relation determination method according to claim 2, which is characterized in that the basis
The oil gas value of first individual well and the oil gas flow value determine the production index curve of first individual well, specific to wrap
It includes:
The oil-air pressure in the unit interval of first individual well is determined according to the oil-air pressure value of first individual well
Drop；
Determine that the oil gas in the unit interval of first individual well is accumulative according to the oil gas flow value of first individual well
Flow value；
Institute is determined with the oil gas integrated flow value according to the oil-air pressure drop in the unit interval of first individual well
State oil-air pressure drop-oil gas integrated flow value curve of the first individual well.
4. carbonate rock connected unit connected relation determination method according to claim 3, which is characterized in that the basis
The oil gas value of second individual well and the oil gas flow value determine the production index curve of second individual well, specific to wrap
It includes:
The oil-air pressure in the unit interval of second individual well is determined according to the oil-air pressure value of second individual well
Drop；
Determine that the oil gas in the unit interval of second individual well is accumulative according to the oil gas flow value of second individual well
Flow value；
Institute is determined with the oil gas integrated flow value according to the oil-air pressure drop in the unit interval of second individual well
State oil-air pressure drop-oil gas integrated flow value curve of the second individual well.
5. carbonate rock connected unit connected relation determination method according to claim 4, which is characterized in that the basis
The production index curve of first individual well and second individual well determines the production index curve of first individual well and described
The slope difference of the production index curve of second individual well, specifically includes:
Determine oil-air pressure drop-oil gas integrated flow value curve of the first individual well in the quasi- of unit interval by curve-fitting method
Close slope value；
Determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in the quasi- of unit interval by curve-fitting method
Close slope value；
Fitting according to the fit slope value of the unit interval of first individual well and the unit time of second individual well is oblique
Rate value determines first individual well and second individual well in the slope difference of unit interval.
6. carbonate rock connected unit connected relation determination method according to claim 5, which is characterized in that the basis
The slope difference determines the connected relation of first individual well and second individual well, specifically includes:
Judge first individual well and second individual well in the slope difference of unit interval and the size of preset threshold；
If first individual well and second individual well are less than the preset threshold in the slope difference of unit interval,
Determine that first individual well and the connected relation of second individual well meet oil-gas mining standard.
7. a kind of carbonate rock connected unit connected relation decision maker characterized by comprising
Module is obtained, for obtaining the creation data of any two mouthfuls of individual wells in region to be determined, and it is true according to the creation data
The production index curve of first individual well and the second individual well in fixed two mouthfuls of individual wells；
First analysis module, for determining described first according to the production index curve of first individual well and second individual well
The slope difference of the production index curve of the production index curve of individual well and second individual well；
Second analysis module is connected to pass for determine first individual well and second individual well according to the slope difference
System.
8. carbonate rock connected unit connected relation decision maker according to claim 7, which is characterized in that described
In one analysis module further include:
First curve generation module, when for determining the unit of first individual well according to the oil-air pressure value of first individual well
Between oil-air pressure drop in section；
It is also used to determine that the oil gas in the unit interval of first individual well is tired according to the oil gas flow value of first individual well
Count flow value；
Oil-air pressure drop and the oil gas integrated flow value being also used in the unit interval according to first individual well
Determine oil-air pressure drop-oil gas integrated flow value curve of first individual well.
9. carbonate rock connected unit connected relation decision maker according to claim 8, which is characterized in that described
In one analysis module further include:
Second curve produces module, when for determining the unit of second individual well according to the oil-air pressure value of second individual well
Between oil-air pressure drop in section；
It is also used to determine that the oil gas in the unit interval of second individual well is tired according to the oil gas flow value of second individual well
Count flow value；
Oil-air pressure drop and the oil gas integrated flow value being also used in the unit interval according to second individual well
Determine oil-air pressure drop-oil gas integrated flow value curve of second individual well.
10. carbonate rock connected unit connected relation decision maker according to claim 9, which is characterized in that described
In first analysis module further include:
Slope difference generation module, for determining oil-air pressure drop-oil gas integrated flow of the first individual well by curve-fitting method
It is worth curve in the fit slope value of unit interval；
It is also used to determine oil-air pressure drop-oil gas integrated flow value curve of the second individual well in the unit time by curve-fitting method
The fit slope value of section；
It is also used to the unit time of the fit slope value and second individual well according to the unit interval of first individual well
Fit slope value determines first individual well and second individual well in the slope difference of unit interval.
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Application publication date: 20190705 |