CN106121641A - Thief's recognition methods of layer and device in oil reservoir - Google Patents
Thief's recognition methods of layer and device in oil reservoir Download PDFInfo
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- CN106121641A CN106121641A CN201610595109.3A CN201610595109A CN106121641A CN 106121641 A CN106121641 A CN 106121641A CN 201610595109 A CN201610595109 A CN 201610595109A CN 106121641 A CN106121641 A CN 106121641A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 44
- 238000003860 storage Methods 0.000 claims description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 11
- 239000010410 layer Substances 0.000 description 95
- 239000002356 single layer Substances 0.000 description 22
- 206010002961 Aplasia Diseases 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/14—Obtaining from a multiple-zone well
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- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Burglar Alarm Systems (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
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Abstract
Embodiments provide recognition methods and the device of thief's layer in a kind of oil reservoir, wherein, the method includes: calculate single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of each reservoir of oil reservoir production logging, and Relative Contribution coefficient is the ratio of single reservoir unit thickness contribution to yield value and total Reservoir Section unit thickness yield；According to the characteristic of different oil reservoirs, from single reservoir unit thickness contribution to yield value and Relative Contribution coefficient of oil reservoir production logging, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient；Calculate single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well in oil reservoir to be measured；The Relative Contribution coefficient of the single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and the magnitude relationship of minimum list reservoir unit thickness contribution to yield value and every mouthful of each reservoir of well and the magnitude relationship of minimum Relative Contribution coefficient, determine whether every mouthful of each reservoir of well grows thief's layer.
Description
Technical field
The present invention relates to Carbonate Reservoir development technique field, particularly in a kind of oil reservoir thief layer recognition methods and
Device.
Background technology
Thief's layer refers to that permeability is far above the thin layer of reservoir mean permeability, and fluid, mainly along thief's laminar flow, causes seeing
Water is too fast, seriously reduces swept volume, causes water filling inefficient cycle, affects oil field whole development effect.At present, general by ground
Matter static data, yield, liquid production index, product increase contribution rate, monolayer liquid production index, zero dimension pressure coefficient etc. and identify and characterize
Thief's layer.But these dynamic and static recognition methodss all have some limitations.Cannot quantitative judge thief based on geology static data
Layer；During based on yield data identification thief's layer, do not consider the concept of producing pressure differential；With liquid production index, produce increasing contribution rate, monolayer production fluid
When the indexs such as index, zero dimension pressure coefficient divide thief's layer, do not consider the restrictive condition such as reservoir thickness or permeability extreme difference.Mesh
Before, still there is no method that is a kind of relatively accurate and that can quickly identify thief's layer.
Summary of the invention
Embodiments provide the recognition methods of thief's layer in a kind of oil reservoir, to solve thief's layer identification in prior art
The technical problem that accuracy is low.The method includes: calculate single reservoir unit thickness contribution to yield of each reservoir of oil reservoir production logging
Value and Relative Contribution coefficient, wherein, described single reservoir unit thickness contribution to yield value is single reservoir yield and single reservoir thickness
Ratio, described Relative Contribution coefficient is the ratio of described single reservoir unit thickness contribution to yield value and total Reservoir Section unit thickness yield
Value；According to the characteristic of different oil reservoirs, from single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of oil reservoir production logging
In, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, wherein, described minimum single reservoir unit
Thickness contribution to yield value and minimum Relative Contribution coefficient meet the requirement of thief's layer identification in different oil reservoir；Calculate in oil reservoir to be measured every mouthful
Single reservoir unit thickness contribution to yield value of each reservoir of well and Relative Contribution coefficient；Single reservoir list according to every mouthful of each reservoir of well
The magnitude relationship of position thickness contribution to yield value and described minimum single reservoir unit thickness contribution to yield value and every mouthful of each reservoir of well
Relative Contribution coefficient and the magnitude relationship of described minimum Relative Contribution coefficient, determine whether every mouthful of each reservoir of well grows thief's layer.
In one embodiment, according to single reservoir unit thickness contribution to yield value and the described minimum of every mouthful of each reservoir of well
Single magnitude relationship of reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well and described minimum phase
Right, the magnitude relationship of contribution coefficient, determine whether every mouthful of each reservoir of well grows thief's layer, including: with each reservoir of oil reservoir production logging
Single reservoir unit thickness contribution to yield value be vertical coordinate, with the Relative Contribution coefficient of each reservoir of oil reservoir production logging as abscissa
Drawing, wherein, the line that crosses of described minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient is painted described
Figure is divided into different regions；Single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and every mouthful of each reservoir of well
Relative Contribution coefficient distributing position of zones of different in described drawing, determine every mouthful of each reservoir of well whether grow thief layer.
In one embodiment, according to single reservoir unit thickness contribution to yield value and the described minimum of every mouthful of each reservoir of well
Single magnitude relationship of reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well and described minimum phase
Magnitude relationship to contribution coefficient, determines whether every mouthful of each reservoir of well grows thief's layer, including: to single reservoir unit thickness yield
Contribution margin does not judges less than the reservoir of described minimum single reservoir unit thickness contribution to yield value；List reservoir unit thickness is produced
Amount contribution margin is less than described minimum relative to tribute more than described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient
The reservoir offering coefficient is defined as non-thief's layer；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness
Contribution to yield value and Relative Contribution coefficient are defined as thief's layer more than the reservoir of described minimum Relative Contribution coefficient.
In one embodiment, for Carbonate Reservoir, described minimum single reservoir unit thickness contribution to yield value is 50,
Described minimum Relative Contribution coefficient is 2.
The embodiment of the present invention additionally provides the identification device of thief's layer in a kind of oil reservoir, to solve thief's layer identification in prior art
The low technical problem of accuracy.This device includes: the first computing module, for calculating the list storage of each reservoir of oil reservoir production logging
Layer unit thickness contribution to yield value and Relative Contribution coefficient, wherein, described single reservoir unit thickness contribution to yield value is single reservoir
Yield and the ratio of single reservoir thickness, described Relative Contribution coefficient is described single reservoir unit thickness contribution to yield value and total reservoir
The ratio of section unit thickness yield；Determine module, for the characteristic according to different oil reservoirs, from single reservoir list of oil reservoir production logging
In position thickness contribution to yield value and Relative Contribution coefficient, determine minimum single reservoir unit thickness contribution to yield value with minimum relative to tribute
Offering coefficient, wherein, described minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient meet in different oil reservoir
The requirement of thief's layer identification；Second computing module, for calculating single reservoir unit thickness of every mouthful of each reservoir of well in oil reservoir to be measured
Contribution to yield value and Relative Contribution coefficient；Identification module, for the single reservoir unit thickness yield according to every mouthful of each reservoir of well
The magnitude relationship of contribution margin reservoir unit thickness contribution to yield value single with described minimum and the Relative Contribution of every mouthful of each reservoir of well
Coefficient and the magnitude relationship of described minimum Relative Contribution coefficient, determine whether every mouthful of each reservoir of well grows thief's layer.
In one embodiment, described identification module, including: image-drawing unit, for each reservoir of oil reservoir production logging
Single reservoir unit thickness contribution to yield value is vertical coordinate, draws for abscissa with the Relative Contribution coefficient of each reservoir of oil reservoir production logging,
Wherein, described drawing is divided into not by the line that crosses of described minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient
Same region；Recognition unit, for the single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and every mouthful of each storage of well
Relative Contribution coefficient distributing position of zones of different in described drawing of layer, determines whether every mouthful of each reservoir of well grows thief's layer.
In one embodiment, described identification module: specifically for single reservoir unit thickness contribution to yield value is less than institute
The reservoir stating minimum single reservoir unit thickness contribution to yield value does not judges；List reservoir unit thickness contribution to yield value is more than
Described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient are less than the reservoir of described minimum Relative Contribution coefficient
It is defined as non-thief's layer；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness contribution to yield value and
Relative Contribution coefficient is defined as thief's layer more than the reservoir of described minimum Relative Contribution coefficient.
In one embodiment, for Carbonate Reservoir, described minimum single reservoir unit thickness contribution to yield value is 50,
Described minimum Relative Contribution coefficient is 2.
In embodiments of the present invention, by calculating single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging
With Relative Contribution coefficient (for example, it is possible to dynamic monitoring data based on oil reservoir production logging calculates each reservoir of oil reservoir production logging
Single reservoir unit thickness contribution to yield value and Relative Contribution coefficient), and determine minimum single reservoir according to the characteristic of different oil reservoirs
Unit thickness contribution to yield value and minimum Relative Contribution coefficient, finally, according to single reservoir unit thickness of every mouthful of each reservoir of well
The magnitude relationship of contribution to yield value and minimum list reservoir unit thickness contribution to yield value and the Relative Contribution of every mouthful of each reservoir of well
Coefficient and the magnitude relationship of minimum Relative Contribution coefficient, can quickly determine whether every mouthful of each reservoir of well grows thief's layer.Due to
The calculating of single reservoir unit thickness contribution to yield value and Relative Contribution coefficient has taken into full account the thickness impact on contribution to yield, makes
Obtain crafty layer identification more to tally with the actual situation, be favorably improved the accuracy of thief's layer identification.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, not
Constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the flow chart of the recognition methods of thief's layer in a kind of oil reservoir that the embodiment of the present invention provides；
Fig. 2 is the differentiation plate of a kind of thief layer identification that the embodiment of the present invention provides；
Fig. 3 is the schematic diagram of thief's layer identification in a kind of Carbonate Reservoir that the embodiment of the present invention provides；
Fig. 4 is the structured flowchart identifying device of thief's layer in a kind of oil reservoir that the embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, right
The present invention is described in further details.Here, the exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but also
Not as a limitation of the invention.
In embodiments of the present invention, it is provided that the recognition methods of thief's layer in a kind of oil reservoir, as it is shown in figure 1, the method includes:
Step 101: calculate single reservoir unit thickness contribution to yield value and the Relative Contribution system of each reservoir of oil reservoir production logging
Number, wherein, described single reservoir unit thickness contribution to yield value is the ratio of single reservoir yield and single reservoir thickness, described relative tribute
Offer the ratio that coefficient is described single reservoir unit thickness contribution to yield value and total Reservoir Section unit thickness yield；
Step 102: according to the characteristic of different oil reservoirs, from single reservoir unit thickness contribution to yield value of oil reservoir production logging and
In Relative Contribution coefficient, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, wherein, described
Little single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient meet the requirement of thief's layer identification in different oil reservoir；
Step 103: calculate in oil reservoir to be measured single reservoir unit thickness contribution to yield value of every mouthful of each reservoir of well with relative
Contribution coefficient；
Step 104: according to single reservoir unit thickness contribution to yield value and described minimum single reservoir of every mouthful of each reservoir of well
The magnitude relationship of unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well and described minimum Relative Contribution
The magnitude relationship of coefficient, determines whether every mouthful of each reservoir of well grows thief's layer.
Flow process as shown in Figure 1 understands, and in embodiments of the present invention, stores up by calculating the list of each reservoir of oil reservoir production logging
Layer unit thickness contribution to yield value and Relative Contribution coefficient are (for example, it is possible to dynamic monitoring data meter based on oil reservoir production logging
Calculate single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of each reservoir of oil reservoir production logging), and according to different oil reservoirs
Characteristic determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, finally, each according to every mouthful of well
The magnitude relationship of single reservoir unit thickness contribution to yield value of reservoir and minimum list reservoir unit thickness contribution to yield value and every mouthful
The Relative Contribution coefficient of each reservoir of well and the magnitude relationship of minimum Relative Contribution coefficient, can quickly determine every mouthful of each storage of well
Whether layer grows thief's layer.Owing to the calculating of single reservoir unit thickness contribution to yield value and Relative Contribution coefficient has taken into full account thickness
Impact on contribution to yield so that the identification of thief's layer more tallies with the actual situation, and is favorably improved the accuracy of thief's layer identification.
When being embodied as, based on produced on-site well logging Monitoring Data can be used, obtain (the i.e. single storage of all individual well monolayers
Layer) thickness and the monolayer yield of correspondence, and then try to achieve thickness in monolayer percentage ratio and monolayer percent yields, finally utilize individual well
Monolayer yield, thickness in monolayer, thickness in monolayer percentage ratio and monolayer percent yields, calculate single reservoir unit thickness contribution to yield
Value and Relative Contribution coefficients R CI.
When being embodied as, it is assumed that Reservoir Section has n monolayer, the yield of i-th layer to be Qi, the thickness of i-th layer is hi, reservoir is total
Yield is Qt, gross reservoir interval is ht.Thief's layer identification plate abscissa (i.e. single reservoir unit thickness contribution to yield value) is that monolayer produces
Measuring the ratio with thickness in monolayer, i.e. single reservoir unit thickness contribution to yield value, this parameter can effectively solve thief's layer recognition methods in the past
In do not consider thief layer thickness problem.
When being embodied as, in order to the most quickly identify thief's layer, in the present embodiment, according to every mouthful of each reservoir of well
The magnitude relationship of single reservoir unit thickness contribution to yield value and described minimum single reservoir unit thickness contribution to yield value and every mouthful
The Relative Contribution coefficient of each reservoir of well is relative with described minimum, the magnitude relationship of contribution coefficient, determines every mouthful of each reservoir of well
Whether grow thief's layer, including: with single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging as vertical coordinate, with oil
The Relative Contribution coefficient hiding each reservoir of production logging is that abscissa is drawn, wherein, and described minimum single reservoir unit thickness yield tribute
Described drawing is divided into different regions by the line that crosses offering value and minimum Relative Contribution coefficient；List according to every mouthful of each reservoir of well
The Relative Contribution coefficient of reservoir unit thickness contribution to yield value and every mouthful of each reservoir of well in described drawing zones of different point
Cloth position, determines whether every mouthful of each reservoir of well grows thief's layer.
Concrete, as in figure 2 it is shown, the single reservoir unit thickness contribution to yield value with each reservoir of oil reservoir production logging is sat for vertical
Mark, draw with the Relative Contribution coefficient of each reservoir of oil reservoir production logging for abscissa after, minimum single reservoir unit thickness yield tribute
Drawing is divided into different regions, i.e. according to coordinate figure minimum list reservoir unit by the line that crosses offering value and minimum Relative Contribution coefficient
Thickness contribution to yield value and the magnitude relationship of minimum Relative Contribution coefficient, minimum single reservoir unit thickness contribution to yield value and minimum
Drawing is divided into different regions by the line that crosses of Relative Contribution coefficient, such as, grow thief's layer region, aplasia thief's layer region and
Unit thickness yield values is too low does not consider region, according to the data of every mouthful of each reservoir of well at the distributing position of zones of different
Quickly determine whether it is to grow thief's layer.
When being embodied as, according to single reservoir unit thickness contribution to yield value and described minimum single storage of every mouthful of each reservoir of well
The Relative Contribution coefficient of magnitude relationship and every mouthful of each reservoir of well of layer unit thickness contribution to yield value with described minimum relative to tribute
Offer the magnitude relationship of coefficient, determine whether every mouthful of each reservoir of well grows thief's layer, including: to single reservoir unit thickness contribution to yield
Value does not judges less than the reservoir of described minimum single reservoir unit thickness contribution to yield value；By list reservoir unit thickness yield tribute
Offer value and be less than described minimum Relative Contribution system more than described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient
The reservoir of number is defined as non-thief's layer；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness yield
Contribution margin and Relative Contribution coefficient are defined as thief's layer more than the reservoir of described minimum Relative Contribution coefficient.
When being embodied as, minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient can be for differences
Oil reservoir is determined.The monolayer too low due to single reservoir unit thickness contribution to yield value is not enough to affect reservoir waterflooding, no
There is the value of crafty layer identification, therefore need to determine a minimum single reservoir unit thickness contribution to yield value.Due to reservoir characteristics etc.
The difference of factor, minimum single reservoir unit thickness contribution to yield value of different oil reservoirs should be different, typically can use single reservoir unit
The half of the meansigma methods of thickness contribution to yield value, such as, for Carbonate Reservoir, minimum single reservoir unit thickness contribution to yield
Value is can be 50stb/ft.Minimum Relative Contribution coefficient is the highest, then show that the production capacity of this monolayer is the biggest, the productivity contribution of thief's layer
More than reservoir overall throughput, general definition thief's layer judge Relative Contribution coefficient as the numerical value more than or equal to 2, such as, for carbonic acid
Rock salt oil reservoir, minimum Relative Contribution coefficient is 2.
Below in conjunction with concrete example, the recognition methods of thief's layer in above-mentioned oil reservoir is described.As a example by Carbonate Reservoir.
(1) data acquisition and data quality control
Utilizing this method identification thief's layer position, gathering data is Carbonate Reservoir production logging data, specifically includes all lists
The thickness of layer and the monolayer yield of correspondence, after all data collections are complete and carry out quality control, identification process can start.
The present embodiment, based on primary dcreening operation result, has 110 single layer data of 25 mouthfuls of wells, utilizes monolayer yield, thickness in monolayer, list
Layer thickness percentage ratio, monolayer percent yields calculate single reservoir unit thickness contribution to yield value and Relative Contribution coefficients R CI, result
As shown in table 1.
1 one groups of carbonate rock thief's layer identification candidate well data of table
(2) single reservoir unit thickness contribution to yield value is determined
The too low monolayer of single reservoir unit thickness contribution to yield value is not enough to affect reservoir waterflooding, does not have the knowledge of crafty layer
Other value, therefore needs to determine a minimum single reservoir unit thickness contribution to yield value.Due to the difference of the factors such as reservoir characteristics,
Single reservoir unit thickness contribution to yield value value of different oil reservoirs should be different, typically can use single reservoir unit thickness contribution to yield
The half of the meansigma methods of value.The present embodiment list reservoir unit thickness contribution to yield value meansigma methods is 98.53stb/ft, minimum single storage
Layer unit thickness contribution to yield value can take 50stb/ft.
(3) determine that thief's layer judges Relative Contribution coefficient
Relative Contribution coefficient is the ratio of single reservoir unit thickness contribution to yield value and unit thickness total output, and this value is more
Height, then show that the production capacity of this monolayer is the biggest.The productivity contribution of thief's layer is more than reservoir overall throughput, and general definition thief's layer judges relatively
Contribution coefficient is the numerical value more than or equal to 2, and this example takes 2.
(4) draw Relative Contribution coefficient and differentiate plate with single reservoir unit thickness contribution to yield value
Abscissa takes single reservoir unit thickness contribution to yield value, and vertical coordinate takes Relative Contribution coefficient and draws differentiation plate.Depend on
The decision condition being suitable for according to different oil reservoirs, Relative Contribution rate and specific yield contribution being differentiated, plate goes out is three subregions.This reality
Executing example minimum list reservoir unit thickness contribution to yield value and take 50stb/ft, thief's layer judges that Relative Contribution coefficient takes 2, three differentiations point
District's (i.e. do not consider, grow thief's floor and three region of aplasia thief's floor) is as shown in Figure 2,3.
(5) based on differentiating that plate carries out thief's layer identification
Recognition result as it is shown on figure 3, represent the most by a dotted line is not considered, is grown thief's layer and aplasia thief
Three region of layer:
1. differentiate plate according to Relative Contribution rate with single reservoir unit thickness contribution to yield value, the present embodiment data have 72
It is left that the data point (this data point includes: single reservoir unit thickness contribution to yield value and Relative Contribution coefficient) of individual monolayer is positioned at plate
Region (is not i.e. considered) in side, and i.e. abscissa is less than minimum single reservoir unit thickness contribution to yield value.Show that the unit of this layer is produced
Amount contribution is not enough to cause affecting reservoir waterflooding, does not considers.
The data point of 2.21 monolayers is positioned at differentiation plate lower right side (i.e. aplasia thief layer region).The unit of these monolayers
Contribution to yield has reached to affect the level of reservoir waterflooding, but Relative Contribution coefficient is relatively low, is identified as non-thief's layer.
The data point distribution of 3.17 monolayers is differentiating plate upper right side (i.e. growing thief's layer region).Show its specific yield
Contribution margin reaches to affect the level of reservoir waterflooding, and Relative Contribution coefficient is higher than common reservoir, it determines for thief's layer germinal layer
Position.
Based on same inventive concept, the embodiment of the present invention additionally provides the identification device of thief's layer in a kind of oil reservoir, as follows
Described in the embodiment in face.Due in oil reservoir thief's layer identify that device solves the recognition methods phase of crafty layer in principle and the oil reservoir of problem
Seemingly, therefore in oil reservoir, the enforcement identifying device of thief's layer may refer to the enforcement of the recognition methods of thief's layer in oil reservoir, in place of repetition
Repeat no more.Used below, term " unit " or " module " can realize the software of predetermined function and/or the group of hardware
Close.Although the device described by following example preferably realizes with software, but hardware, or the combination of software and hardware
Realization also may and be contemplated.
Fig. 4 be the embodiment of the present invention oil reservoir in thief layer identify device a kind of structured flowchart, as shown in Figure 4, including:
First computing module 401, for calculating single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging
With Relative Contribution coefficient, wherein, described single reservoir unit thickness contribution to yield value is the ratio of single reservoir yield and single reservoir thickness
Value, described Relative Contribution coefficient is the ratio of described single reservoir unit thickness contribution to yield value and total Reservoir Section unit thickness yield
Value；
Determine module 402, for the characteristic according to different oil reservoirs, from single reservoir unit thickness yield of oil reservoir production logging
In contribution margin and Relative Contribution coefficient, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, its
In, described minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient meet thief's layer identification in different oil reservoir
Requirement；
Second computing module 403, for calculating single reservoir unit thickness yield of every mouthful of each reservoir of well in oil reservoir to be measured
Contribution margin and Relative Contribution coefficient；
Identification module 404, for according to single reservoir unit thickness contribution to yield value of every mouthful of each reservoir of well with described
The magnitude relationship of little single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well and described minimum
The magnitude relationship of Relative Contribution coefficient, determines whether every mouthful of each reservoir of well grows thief's layer.
In one embodiment, described identification module, including: image-drawing unit, for each reservoir of oil reservoir production logging
Single reservoir unit thickness contribution to yield value is vertical coordinate, paints for abscissa with the Relative Contribution coefficient of each reservoir of oil reservoir production logging
Figure, wherein, the line that crosses of described minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient is by described drawing
It is divided into different regions；Recognition unit, for the single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well with every
Relative Contribution coefficient distributing position of zones of different in described drawing of the mouth each reservoir of well, determines that every mouthful of each reservoir of well is
No growth thief's layer.
In one embodiment, described identification module: specifically for single reservoir unit thickness contribution to yield value is less than institute
The reservoir stating minimum single reservoir unit thickness contribution to yield value does not judges；List reservoir unit thickness contribution to yield value is more than
Described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient are less than the reservoir of described minimum Relative Contribution coefficient
It is defined as non-thief's layer；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness contribution to yield value and
Relative Contribution coefficient is defined as thief's layer more than the reservoir of described minimum Relative Contribution coefficient.
In one embodiment, for Carbonate Reservoir, described minimum single reservoir unit thickness contribution to yield value is 50,
Described minimum Relative Contribution coefficient is 2.
In another embodiment, additionally providing a kind of software, this software is used for performing above-described embodiment and the most real
Execute the technical scheme described in mode.
In another embodiment, additionally providing a kind of storage medium, in this storage medium, storage has above-mentioned software, should
Storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
In embodiments of the present invention, by calculating single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging
With Relative Contribution coefficient (for example, it is possible to dynamic monitoring data based on oil reservoir production logging calculates each reservoir of oil reservoir production logging
Single reservoir unit thickness contribution to yield value and Relative Contribution coefficient), and determine minimum single reservoir according to the characteristic of different oil reservoirs
Unit thickness contribution to yield value and minimum Relative Contribution coefficient, finally, according to single reservoir unit thickness of every mouthful of each reservoir of well
The magnitude relationship of contribution to yield value and minimum list reservoir unit thickness contribution to yield value and the Relative Contribution of every mouthful of each reservoir of well
Coefficient and the magnitude relationship of minimum Relative Contribution coefficient, can quickly determine whether every mouthful of each reservoir of well grows thief's layer.Due to
The calculating of single reservoir unit thickness contribution to yield value and Relative Contribution coefficient has taken into full account the thickness impact on contribution to yield, makes
Obtain crafty layer identification more to tally with the actual situation, be favorably improved the accuracy of thief's layer identification.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step are permissible
Realizing with general calculating device, they can concentrate on single calculating device, or is distributed in multiple calculating device
On the network formed, alternatively, they can realize with calculating the executable program code of device, it is thus possible to by it
Store and perform by calculating device in the storage device, and in some cases, can hold with the order being different from herein
Step shown or described by row, or they are fabricated to respectively each integrated circuit modules, or multiple by them
Module or step are fabricated to single integrated circuit module and realize.So, the embodiment of the present invention is not restricted to any specific hard
Part and software combine.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.
Claims (8)
1. the recognition methods of thief's layer in an oil reservoir, it is characterised in that including:
Calculate single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of each reservoir of oil reservoir production logging, wherein, described
Single reservoir unit thickness contribution to yield value is the ratio of single reservoir yield and single reservoir thickness, and described Relative Contribution coefficient is described
Single reservoir unit thickness contribution to yield value and the ratio of total Reservoir Section unit thickness yield；
According to the characteristic of different oil reservoirs, from single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of oil reservoir production logging
In, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, wherein, described minimum single reservoir unit
Thickness contribution to yield value and minimum Relative Contribution coefficient meet the requirement of thief's layer identification in different oil reservoir；
Calculate single reservoir unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well in oil reservoir to be measured；
Single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and described minimum single reservoir unit thickness yield
The Relative Contribution coefficient of the magnitude relationship of contribution margin and every mouthful of each reservoir of well closes with the size of described minimum Relative Contribution coefficient
System, determines whether every mouthful of each reservoir of well grows thief's layer.
2. the recognition methods of thief's layer in oil reservoir as claimed in claim 1, it is characterised in that according to the list of every mouthful of each reservoir of well
Reservoir unit thickness contribution to yield value is every with the magnitude relationship of described minimum single reservoir unit thickness contribution to yield value and every mouthful of well
The Relative Contribution coefficient of individual reservoir is relative with described minimum, the magnitude relationship of contribution coefficient, whether determines every mouthful of each reservoir of well
Grow thief's layer, including:
With single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging as vertical coordinate, respectively store up with oil reservoir production logging
The Relative Contribution coefficient of layer is that abscissa is drawn, and wherein, described minimum single reservoir unit thickness contribution to yield value is relative with minimum
Described drawing is divided into different regions by the line that crosses of contribution coefficient；
Single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and the Relative Contribution system of every mouthful of each reservoir of well
Number distributing position of zones of different in described drawing, determines whether every mouthful of each reservoir of well grows thief's layer.
3. the recognition methods of thief's layer in oil reservoir as claimed in claim 1 or 2, it is characterised in that according to every mouthful of each reservoir of well
The magnitude relationship of single reservoir unit thickness contribution to yield value and described minimum single reservoir unit thickness contribution to yield value and every mouthful
The Relative Contribution coefficient of each reservoir of well and the magnitude relationship of described minimum Relative Contribution coefficient, determine that every mouthful of each reservoir of well is
No growth thief's layer, including:
Single reservoir unit thickness contribution to yield value is not entered less than the reservoir of described minimum single reservoir unit thickness contribution to yield value
Row judges；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness contribution to yield value and tribute relatively
Offer coefficient and be defined as non-thief's layer less than the reservoir of described minimum Relative Contribution coefficient；By big for list reservoir unit thickness contribution to yield value
The storage of described minimum Relative Contribution coefficient it is more than in described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient
Layer is defined as thief's layer.
4. the recognition methods of thief's layer in oil reservoir as claimed in claim 1 or 2, it is characterised in that for Carbonate Reservoir, institute
Stating minimum single reservoir unit thickness contribution to yield value is 50, and described minimum Relative Contribution coefficient is 2.
5. the identification device of thief's layer in an oil reservoir, it is characterised in that including:
First computing module, for calculating single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging and relative tribute
Offering coefficient, wherein, described single reservoir unit thickness contribution to yield value is the ratio of single reservoir yield and single reservoir thickness, described phase
It is the ratio of described single reservoir unit thickness contribution to yield value and total Reservoir Section unit thickness yield to contribution coefficient；
Determine module, for the characteristic according to different oil reservoirs, from single reservoir unit thickness contribution to yield value of oil reservoir production logging
With in Relative Contribution coefficient, determine minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient, wherein, described
Minimum single reservoir unit thickness contribution to yield value and minimum Relative Contribution coefficient meet the requirement of thief's layer identification in different oil reservoir；
Second computing module, for calculate in oil reservoir to be measured single reservoir unit thickness contribution to yield value of every mouthful of each reservoir of well and
Relative Contribution coefficient；
Identification module, for the single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and described minimum single reservoir
The magnitude relationship of unit thickness contribution to yield value and the Relative Contribution coefficient of every mouthful of each reservoir of well and described minimum Relative Contribution
The magnitude relationship of coefficient, determines whether every mouthful of each reservoir of well grows thief's layer.
6. the identification device of thief's layer in oil reservoir as claimed in claim 5, it is characterised in that described identification module, including:
Image-drawing unit, for single reservoir unit thickness contribution to yield value of each reservoir of oil reservoir production logging as vertical coordinate, with oil
The Relative Contribution coefficient hiding each reservoir of production logging is that abscissa is drawn, wherein, and described minimum single reservoir unit thickness yield tribute
Described drawing is divided into different regions by the line that crosses offering value and minimum Relative Contribution coefficient；
Recognition unit, for the single reservoir unit thickness contribution to yield value according to every mouthful of each reservoir of well and every mouthful of each reservoir of well
Relative Contribution coefficient distributing position of zones of different in described drawing, determine every mouthful of each reservoir of well whether grow thief layer.
7. the identification device of thief's layer in the oil reservoir as described in claim 5 or 6, it is characterised in that described identification module: specifically use
In single reservoir unit thickness contribution to yield value is not carried out less than the reservoir of described minimum single reservoir unit thickness contribution to yield value
Judge；By list reservoir unit thickness contribution to yield value more than described minimum single reservoir unit thickness contribution to yield value and Relative Contribution
Coefficient is defined as non-thief's layer less than the reservoir of described minimum Relative Contribution coefficient；List reservoir unit thickness contribution to yield value is more than
Described minimum single reservoir unit thickness contribution to yield value and Relative Contribution coefficient are more than the reservoir of described minimum Relative Contribution coefficient
It is defined as thief's layer.
8. the identification device of thief's layer in the oil reservoir as described in claim 5 or 6, it is characterised in that for Carbonate Reservoir, institute
Stating minimum single reservoir unit thickness contribution to yield value is 50, and described minimum Relative Contribution coefficient is 2.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595109.3A CN106121641B (en) | 2016-07-26 | 2016-07-26 | The recognition methods of crafty layer and device in oil reservoir |
| PCT/CN2017/072146 WO2018018865A1 (en) | 2016-07-26 | 2017-01-23 | Method and device for recognizing thief zone in oil pool |
| US16/257,718 US20190211674A1 (en) | 2016-07-26 | 2019-01-25 | Method for recognizing thief zone in oil pool, computer apparatus and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610595109.3A CN106121641B (en) | 2016-07-26 | 2016-07-26 | The recognition methods of crafty layer and device in oil reservoir |
Publications (2)
| Publication Number | Publication Date |
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| CN106121641A true CN106121641A (en) | 2016-11-16 |
| CN106121641B CN106121641B (en) | 2019-06-11 |
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| CN201610595109.3A Active CN106121641B (en) | 2016-07-26 | 2016-07-26 | The recognition methods of crafty layer and device in oil reservoir |
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| Country | Link |
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| US (1) | US20190211674A1 (en) |
| CN (1) | CN106121641B (en) |
| WO (1) | WO2018018865A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018865A1 (en) * | 2016-07-26 | 2018-02-01 | 中国石油天然气股份有限公司 | Method and device for recognizing thief zone in oil pool |
| CN109389307A (en) * | 2018-10-10 | 2019-02-26 | 中国石油天然气股份有限公司 | Determine the method and device of oil reservoir injection well channelling amount |
| CN111749687A (en) * | 2020-07-23 | 2020-10-09 | 中海石油国际能源服务(北京)有限公司 | Method, device and equipment for determining main force horizon of multilayer oil reservoir and storage medium |
| CN111997581A (en) * | 2019-05-27 | 2020-11-27 | 中国石油天然气股份有限公司 | Heterogeneous oil reservoir development method and device and electronic equipment |
| WO2022242200A1 (en) | 2021-05-21 | 2022-11-24 | 中国石油天然气股份有限公司 | Method and apparatus for identifying high permeability streaks in marine carbonate rock bioclastic limestone oil reservoir |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111382523B (en) * | 2020-03-17 | 2023-06-16 | 中国石油化工股份有限公司 | New splitting method for yield of oil well |
| CN117541070B (en) * | 2023-10-24 | 2024-04-12 | 北京科技大学 | Oil well multi-layer production splitting method based on machine learning and game theory |
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| WO2022242200A1 (en) | 2021-05-21 | 2022-11-24 | 中国石油天然气股份有限公司 | Method and apparatus for identifying high permeability streaks in marine carbonate rock bioclastic limestone oil reservoir |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190211674A1 (en) | 2019-07-11 |
| WO2018018865A1 (en) | 2018-02-01 |
| CN106121641B (en) | 2019-06-11 |
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