CN109308381A - A kind of method, apparatus and system of determining oil volume factor - Google Patents
A kind of method, apparatus and system of determining oil volume factor Download PDFInfo
- Publication number
- CN109308381A CN109308381A CN201810986720.8A CN201810986720A CN109308381A CN 109308381 A CN109308381 A CN 109308381A CN 201810986720 A CN201810986720 A CN 201810986720A CN 109308381 A CN109308381 A CN 109308381A
- Authority
- CN
- China
- Prior art keywords
- volume factor
- oil
- target interval
- oil volume
- determining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 74
- 235000011615 Pinus koraiensis Nutrition 0.000 claims abstract description 34
- 240000007263 Pinus koraiensis Species 0.000 claims abstract description 34
- 239000003921 oil Substances 0.000 claims description 195
- 239000010779 crude oil Substances 0.000 claims description 32
- 238000003860 storage Methods 0.000 claims description 15
- 238000004090 dissolution Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000013481 data capture Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 77
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 7
- 238000007872 degassing Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004445 quantitative analysis Methods 0.000 description 4
- 210000000952 spleen Anatomy 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 3
- 102000003712 Complement factor B Human genes 0.000 description 2
- 108090000056 Complement factor B Proteins 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Economics (AREA)
- General Physics & Mathematics (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Human Resources & Organizations (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Public Health (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
This specification embodiment discloses the method, apparatus and system of a kind of determining oil volume factor, and the method includes determining degassed crude volume factor according to the stratum degassed crude density and stock tank oil density of target interval；Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；The oil volume factor of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor.Using each embodiment of this specification, the oil volume factor of each target interval of sondage block can be more accurately obtained.
Description
Technical field
The present invention relates to petroleum natural gas exploration technical fields, particularly, are related to a kind of determining oil volume factor
Method, apparatus and system.
Background technique
Oil volume factor refers to crude oil in the ratio of the volume of underground and its volume after ground deaerates.Crude oil volume
Coefficient is unique denominator in volumetric method calculating oil in-place parameter, treats the accurate of the reserve forecasting data of production zone
Property has larger impact.
It under normal conditions, can be using the volume factor and oil density time in the actual measurement high-voltage physics data in respective oil field
Return empirical equation, determines oil volume factor.But during geological prospecting, the sondage stage is mostly based on outlying district, it is more difficult to obtain
Volume factor data must be surveyed.And the measured data empirical regression formula in other areas is utilized, and may be because of geological structure
Difference and influence the accuracy of sondage block oil volume factor finally obtained.Therefore, it needs in the industry a kind of simpler
The effective method for determining oil volume factor.
Summary of the invention
The purpose of this specification embodiment is to provide the method, apparatus and system of a kind of determining oil volume factor, can be with
More accurately obtain the oil volume factor of sondage block.
This specification a kind of method, apparatus of determining oil volume factor is provided and system be include that under type such as is realized
:
A kind of method of determining oil volume factor, comprising:
Degassed crude volume system is determined according to the stratum degassed crude density and stock tank oil density of target interval
Number；
Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；
The crude oil of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Volume factor.
In another embodiment of the method that this specification provides, the stratum degassed crude according to target interval
Density and stock tank oil density determine degassed crude volume factor, comprising:
The degassed crude body of target interval is determined according to the ratio of stock tank oil density and stratum degassed crude density
Product coefficient.
In another embodiment of the method that this specification provides, the original dissolution gas and oil according to target interval
Than determining solution gas oil volume factor:
According to the primary Korean pine forest of sample areas and solution gas oil volume factor data, fit correlation is obtained
Formula；
According to the primary Korean pine forest of target interval, is calculated based on the fit correlation formula and obtain dissolution gas crude oil volume
Coefficient.
In another embodiment of the method that this specification provides, the primary Korean pine forest of the target interval is adopted
It is determined with following manner:
It obtains and keeps the oil-producing data of the target interval in the case of bottom pressure above bubble point pressure, produces destiny evidence；
According to the oil-producing data, destiny is produced according to the primary Korean pine forest for determining target interval.
On the other hand, this specification embodiment also provides a kind of device of determining oil volume factor, comprising:
First volume factor determining module, it is former for being deaerated according to the stratum degassed crude density of target interval and ground
Oil density determines degassed crude volume factor；
Second volume factor determining module, for determining dissolution gas crude oil body according to the primary Korean pine forest of target interval
Product coefficient；
Oil volume factor determining module, for according to the degassed crude volume factor and dissolution gas crude oil volume system
Number determines the oil volume factor of the target interval.
In another embodiment for the described device that this specification provides, the first volume factor determining module includes:
First volume factor determination unit, for the ratio according to stock tank oil density and stratum degassed crude density
Determine the degassed crude volume factor of target interval.
In another embodiment for the described device that this specification provides, the second volume factor determining module includes:
Fit correlation formula determination unit, for the primary Korean pine forest and dissolution gas crude oil volume according to sample areas
Coefficient data obtains fit correlation formula；
Second volume factor determination unit is closed for the primary Korean pine forest according to target interval based on the fitting
It is that formula calculates acquisition solution gas oil volume factor.
In another embodiment for the described device that this specification provides, the second volume factor determining module includes:
Second data capture unit, for obtaining the production of the target interval in the case of keeping bottom pressure above bubble point pressure
Oily data produce destiny evidence；
Dissolved gas oil ratio computing unit, for obtaining the original of target interval according to calculating according to the oil-producing data, production destiny
Beginning dissolved gas oil ratio.
On the other hand, this specification embodiment also provides a kind of equipment of determining oil volume factor, including processor and
For the memory of storage processor executable instruction, when described instruction is executed by the processor realize the following steps are included:
Degassed crude volume system is determined according to the stratum degassed crude density and stock tank oil density of target interval
Number；
Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；
The crude oil of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Volume factor.
On the other hand, this specification embodiment also provides a kind of system of determining oil volume factor, including at least one
Processor and the memory for storing computer executable instructions, the processor are realized above-mentioned any one when executing described instruction
The step of a embodiment the method.
The method, apparatus and system for a kind of determining oil volume factor that this specification one or more embodiment provides,
It can be by the dissolution gas crude oil volume analyzing the degassed crude volume factor being affected by temperature respectively and influenced by solution gas
Coefficient, the determination degassed crude volume factor and solution gas oil volume factor of accurate quantitative analysis.Then, further the two is tied
It closes, obtains the oil volume factor for comprehensively considering temperature and solution gas.So as to the determination sondage block of precise and high efficiency
Oil volume factor.
Detailed description of the invention
In order to illustrate more clearly of this specification embodiment or technical solution in the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
The some embodiments recorded in this specification, for those of ordinary skill in the art, in not making the creative labor property
Under the premise of, it is also possible to obtain other drawings based on these drawings.In the accompanying drawings:
Fig. 1 is a kind of flow diagram of the embodiment of the method for determining oil volume factor that this specification provides；
Solution gas oil volume factor and primary Korean pine forest are fitted in one embodiment that Fig. 2 provides for this specification
Analyze schematic diagram；
Fig. 3 is the oil volume factor that another embodiment that this specification provides is calculated and actual measurement crude oil volume system
Number comparative analysis schematic diagram；
Fig. 4 is a kind of modular structure schematic diagram of the Installation practice for determining oil volume factor that this specification provides.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in this specification, below in conjunction with this explanation
Attached drawing in book one or more embodiment carries out the technical solution in this specification one or more embodiment clear, complete
Site preparation description, it is clear that described embodiment is only specification a part of the embodiment, instead of all the embodiments.Based on saying
Bright book one or more embodiment, it is obtained by those of ordinary skill in the art without making creative efforts all
The range of this specification example scheme protection all should belong in other embodiments.
Oil volume factor is ratio of the crude oil in the volume of underground and its volume after ground deaerates.Usual situation
Under, using the volume factor and oil density empirical regression formula in the actual measurement high-voltage physics data in respective oil field, to determine original
Oil volume coefficient.Ground oil density, reservoir temperature, pressure, natural gas relative density, reservoir buried depth parameter conduct such as can be used
Independent variable carries out fitting of a polynomial, obtains the empirical equation in part oil field or layer position.But it is quasi- by multinomial with these parameters
It is legal when seeking oil volume factor, it is necessary to meet the requirement such as precision, representativeness and correlation between variables.But geological prospecting process
In, the sondage stage is mostly based on outlying district, it is more difficult to obtain comprehensive measured data.And the measured data in other areas is utilized to return
Return empirical equation, and the accurate of the sondage block oil volume factor finally obtained may be influenced by architectonic different
Property.
Correspondingly, this specification embodiment provides a kind of method of determining oil volume factor, it can be by dividing respectively
Analyse the degassed crude volume factor being affected by temperature and the solution gas oil volume factor influenced by solution gas, accurate quantitative analysis
Determination degassed crude volume factor and solution gas oil volume factor.Then, further the two is combined, obtains synthesis and examines
Consider the oil volume factor of temperature and solution gas.So as to the oil volume factor of the determination of efficiently and accurately.
Fig. 1 is a kind of embodiment of the method flow diagram of determining oil volume factor that this specification provides.Though
So present description provides as the following examples or method operating procedure shown in the drawings or apparatus structure, but based on conventional or
May include more in the method or device without creative labor or part merge after less operating procedure or
Modular unit.In the step of there is no necessary causalities in logicality or structure, the execution sequence or device of these steps
Modular structure be not limited to this specification embodiment or execution shown in the drawings sequence or modular structure.The method or module
Device in practice, server or the end product of structure are in application, can be according to embodiment or method shown in the drawings
Or modular structure carry out sequence execution or it is parallel execute (such as parallel processor or multiple threads environment, even wrap
Include the implementation environment of distributed treatment, server cluster).
Specific one embodiment is as shown in Figure 1, one of the method for the determination oil volume factor that this specification provides
In embodiment, the method may include:
S2: degassed crude volume is determined according to the stratum degassed crude density and stock tank oil density of target interval
Coefficient.
Sondage block can be the region of oil volume factor to be predicted before oil and gas development.The degassed crude can wrap
Include the crude oil after the gases such as the natural gas in crude oil are detached from.Wherein, the stratum degassed crude density may include in destination layer
Degassed crude density under section original temperature, the stock tank oil density may include degassing at a temperature of ground standard
Oil density.
In some embodiments, temperature data can be primitively descended to obtain target interval in log data, and
Stock tank oil density data at a temperature of ground standard.Then, according to the stratum degassed crude density constructed in advance with temperature
The computation model for spending variation, determines the stratum degassed crude density of target interval.The computation model may include empirical equation,
It also may include the operation processing models constructed according to certain predetermined rule.According to the above method, to obtain in sondage block
The stratum degassed crude density data on each stratum.
Such as, ground standard temperature can be set as 20 DEG C, test stock tank oil density at this temperature, then, according to
Following computation models determine stratum degassed crude density:
ρO (stratum)=ρo(20℃)-(T(stratum)-20℃)×Δρ (1)
Wherein, ρO (stratum)Indicate the stratum degassed crude density of target interval, ρo(20℃)It indicates in 20 DEG C of conditions of normal temperature
Under stock tank oil density, T(stratum)Indicate that the original subsurface temperature of target interval, Δ ρ indicate 1 DEG C of correspondence of the every variation of temperature
Density correction.
Correspondingly, the size of the correction value delta ρ can be determined according to table 1, it is of course also possible to by a large amount of datums
According to carrying out analysis determination.
It is then possible to close according to the stratum degassed crude density data and stock tank oil determined by the above method
Degree evidence determines the degassed crude volume factor of respective objects interval in sondage block.Degassed crude volume factor, which reflects, to disappear
Except the volume factor changing value being affected by temperature merely after solution gas.
It, can be according to the ratio of stock tank oil density and stratum degassed crude density in one embodiment of this specification
It is worth the degassed crude volume factor for determining target interval.In some embodiments, the degassed crude volume factor BoIt can root
It calculates and obtains according to formula (2):
Bo=ρo(20℃)/ρo(stratum) (2)
Each target interval degassed crude volume factor in target interval can be further quantitatively determined according to formula (2).When
So, when it is implemented, the expression form in above-mentioned formula can be not limited to, it also can according to need and carry out deformation appropriate.
It such as can according to need increase or multiplied by corresponding coefficient or power exponent.
1 oil product density revision table of table
| ρo(20 DEG C) range | 1 DEG C of correction value delta ρ | ρo(20 DEG C) range | 1 DEG C of correction value delta ρ |
| 0.80~0.81 | 0.000765 | 0.90~0.91 | 0.000633 |
| 0.81~0.82 | 0.000752 | 0.91~0.92 | 0.000620 |
| 0.82~0.83 | 0.000738 | 0.92~0.93 | 0.000607 |
| 0.83~0.84 | 0.000725 | 0.93~0.94 | 0.000594 |
| 0.84~0.85 | 0.000712 | 0.94~0.95 | 0.000581 |
| 0.85~0.86 | 0.000699 | 0.95~0.96 | 0.000567 |
| 0.86~0.87 | 0.000686 | 0.96~0.97 | 0.000554 |
| 0.87~0.88 | 0.000673 | 0.97~0.98 | 0.000541 |
| 0.88~0.89 | 0.000660 | 0.98~0.99 | 0.000528 |
| 0.89~0.90 | 0.000647 | 0.99~1.00 | 0.000515 |
S4: solution gas oil volume factor is determined according to the primary Korean pine forest of target interval.
The primary Korean pine forest may include that the gas volume that crude oil dissolves under certain strata pressure and ground degassing are former
The ratio of oil volume.In some embodiments, such as it can be determined original by such as tabular analysis, image analysis analysis method
Variation relation between dissolved gas oil ratio and solution gas oil volume factor, and then utilize the original of target interval in prediction block
Beginning dissolved gas oil ratio data determine the solution gas oil volume factor of respective objects interval.The solution gas oil volume factor can
To include eliminating the volume factor changing value influenced by solution gas merely after temperature influence.In one embodiment of this specification,
Can will or more similar developing zone identical as prediction block geologic property as sample areas, obtain sample areas
Primary Korean pine forest and solution gas oil volume factor data, analysis is fitted to the two, obtains fit correlation formula.
It is then possible to obtain the primary Korean pine forest data of target interval in prediction block, obtained based on the calculating of above-mentioned fit correlation formula
Obtain the solution gas oil volume factor of target interval.
In some embodiments, the fit correlation formula can be indicated are as follows:
Δ B=ARsi-X (3)
Wherein, Δ B indicates solution gas oil volume factor, RsiIndicate that primary Korean pine forest, A, X indicate coefficient.
In Liaohe Oil Field, the solution gas oil volume factor △ B and primary Korean pine forest R of certain target intervalsiFitting
Relationship is as shown in Fig. 2, fit correlation formula are as follows: Δ Β=0.003Rsi-0.0226.As shown in Figure 2, △ B and RsiCoefficient R2
=0.9761, degree of correlation is higher.To show this specification above-described embodiment, by that can be compared using primary Korean pine forest
Accurate determining solution gas oil volume factor.
In one embodiment of this specification, the available destination layer kept in the case of bottom pressure above bubble point pressure
The oil-producing data of section produce destiny evidence, according to the oil-producing data, produce destiny according to the primary Korean pine forest for determining target interval.
Wherein, the saturation pressure is in in-place oil pressure reduction, and crude oil starts critical pressure when degassing.Utilize the present embodiment
Scheme can be effectively prevented crude oil in underground and degassing phenomenon occur, to obtain complete formation fluid volume, guarantees to obtain molten
Solve the accuracy of gas-oil ratio data.To improve the accuracy of the solution gas oil volume factor of the respective objects interval of acquisition.
S6: the original of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Oil volume coefficient.
Degassed crude volume factor, the dissolution gas crude oil body of the available target interval being calculated through the above steps
Product coefficient data, the destination layer determined according to the degassed crude volume factor of target interval, solution gas oil volume factor data
The oil volume factor of section.
Degassed crude volume factor reflects the volume factor changing value eliminated and be affected by temperature merely after solution gas, and molten
Oil volume factor of venting one's spleen then reflects the volume factor changing value eliminated and influenced by solution gas merely after temperature influence.By temperature
The degassed crude volume factor of influence can accurately be determined according to the formation testing result of target interval, and dissolve gas crude oil
Volume factor then can accurately be determined according to the primary Korean pine forest of target interval.Then, former according to the degassing of target interval
Oil volume coefficient, solution gas oil volume factor data can accurately determine the oil volume factor of respective objects interval.
It, can be according to the degassed crude volume factor of target interval and dissolution gas crude oil volume system in some embodiments
The sum of number determines the oil volume factor B of target intervaloi:
Boi=Bo+ΔB. (4)
The oil volume factor that target interval can be further quantitatively determined using above-mentioned formula (4), thus precise and high efficiency
Determination sondage block oil volume factor data.Certainly, when it is implemented, the statement in above-mentioned formula can be not limited to
Form also can according to need and carry out deformation appropriate.It such as can according to need increase or multiplied by corresponding coefficient or power
Index etc..
In order to enable further verifying the practicability and feasibility of this method, this specification additionally provided using above-mentioned side
One specific example of case calculates gold band oil field and drives 34 block oil volume factors:
As shown in table 2,34 wells depth 4688m, static pressure 47.3Mpa in 4666.0-4710.0m well section formation testing, oil reservoir is driven.
When production is asked in formation testing, reinforce flowing bottomhole pressure (FBHP) monitoring, makes bottom pressure above bubble point pressure, steady production 3 days, tire out oil-producing 143.0m3,
It is tired to produce gas 20167m3, convert production gas-oil ratio 141.The formation temperature of the well section is 0.7306g/cm3, mentioned according to above-described embodiment
The method of confession calculates the degassed crude volume factor B of acquisitionoIt is 1.1204, solution gas oil volume factor is 0.4004.
Further according to above-mentioned formula (4), the oil volume factor for calculating the well section of acquisition is 1.5208, specific implementation
When, it can be with value for 1.521.
2 Gaosheng oil field thunder of table, 88 block △ B method seeks original oil volume factor computational chart
Fig. 3 indicates to utilize this specification scheme provided by the above embodiment, determining four, Liaohe Oil Field, 26 mouthfuls of oil field well
Oil volume factor and actual measurement oil volume factor contrast schematic diagram.From the figure 3, it may be seen that being calculated using each embodiment of this specification true
Fixed oil volume factor (abscissa) and measured data (ordinate) goodness of fit are higher, to show to utilize this specification reality
The scheme for applying example calculates oil volume factor accuracy with higher.And it is less to the requirement of measured data in calculating process,
So that the scheme scope of application of this specification embodiment is wider.
Multiple parameters are mixed to the method for carrying out Fitting Analysis and determining oil volume factor in compared with the existing technology.This theory
The above scheme that bright book embodiment provides, by first calculating separately the degassed crude volume factor being affected by temperature and by molten
It vents one's spleen the solution gas oil volume factor of influence.Then, further the two is combined, acquisition comprehensively considers temperature and solution gas
Oil volume factor.The accuracy of the oil volume factor finally obtained can be improved, and to actual measurement parameter in calculating process
Demand it is less, it is simple and easy, the scope of application is wider.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Specifically it is referred to
The description of aforementioned relevant treatment related embodiment, does not do repeat one by one herein.
It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims
It is interior.In some cases, the movement recorded in detail in the claims or step can be come according to the sequence being different from embodiment
It executes and desired result still may be implemented.In addition, process depicted in the drawing not necessarily require show it is specific suitable
Sequence or consecutive order are just able to achieve desired result.In some embodiments, multitasking and parallel processing be also can
With or may be advantageous.
A kind of method for determining oil volume factor that this specification one or more embodiment provides, can pass through difference
The degassed crude volume factor being affected by temperature and the solution gas oil volume factor influenced by solution gas are analyzed, it is accurate fixed
The determination degassed crude volume factor and solution gas oil volume factor of amount.Then, further the two is combined, is integrated
Consider the oil volume factor of temperature and solution gas.So as to the crude oil volume system of the determination sondage block of precise and high efficiency
Number.
Based on the method for determination oil volume factor described above, this specification one or more embodiment also provides one
Kind determines the device of oil volume factor.The device may include used this specification embodiment the method be
System, software (application), module, component, server etc. simultaneously combine the necessary device for implementing hardware.Based on same innovation thinking,
The device in one or more embodiments that this specification embodiment provides is as described in the following examples.Since device solution is asked
The implementation of topic is similar to method, therefore the implementation of the specific device of this specification embodiment may refer to the reality of preceding method
It applies, overlaps will not be repeated.Used below, the software of predetermined function may be implemented in term " unit " or " module "
And/or the combination of hardware.Although device described in following embodiment is preferably realized with software, hardware or soft
The realization of the combination of part and hardware is also that may and be contemplated.Specifically, Fig. 4 indicates a kind of determining crude oil that specification provides
The modular structure schematic diagram of the Installation practice of volume factor, as shown in figure 4, the apparatus may include:
First volume factor determining module 102 can be used for stratum degassed crude density and ground according to target interval
Emaciated face gas crude oil density determines degassed crude volume factor；
Second volume factor determining module 104 can be used for being determined according to the primary Korean pine forest of target interval and dissolve
Gas crude oil volume factor；
Oil volume factor determining module 106 can be used for former according to the degassed crude volume factor and solution gas
Oil volume coefficient determines the oil volume factor of the target interval.
Using the scheme of above-described embodiment, the accuracy of sondage block oil volume factor prediction result can be improved.
In another embodiment of this specification, the first volume factor determining module 102 may include: the first volume
Factor determination unit, wherein
The first volume factor determination unit can be used for close according to stock tank oil density and stratum degassed crude
The ratio of degree determines the degassed crude volume factor of target interval.
Using the scheme of above-described embodiment, degassed crude volume factor can be further quantitatively determined, and then improves crude oil
The accuracy of volume factor prediction result.
In another embodiment of this specification, the second volume factor determining module 104 may include: fit correlation
Formula determination unit and the second volume factor determination unit, wherein
The fit correlation formula determination unit can be used for primary Korean pine forest and solution gas according to sample areas
Oil volume factor data obtain fit correlation formula；
The second volume factor determination unit, can be used for the primary Korean pine forest according to target interval, be based on institute
It states fit correlation formula and calculates acquisition solution gas oil volume factor.
Using the scheme of above-described embodiment, solution gas oil volume factor can be further quantitatively determined, and then is improved former
The accuracy of oil volume coefficient prediction result.
In another embodiment of this specification, the second volume factor determining module 106 may include: the second data
Acquiring unit and dissolved gas oil ratio computing unit, wherein
Second data capture unit can be used for obtaining the target kept in the case of bottom pressure above bubble point pressure
The oil-producing data of interval produce destiny evidence；
The dissolved gas oil ratio computing unit can be used for according to the oil-producing data, produce destiny according to calculating acquisition target
The primary Korean pine forest of interval.
Using the scheme of above-described embodiment, the accuracy of primary Korean pine forest may further ensure that, and then improve former
The accuracy of oil volume coefficient prediction result.
It should be noted that device described above can also include other embodiment party according to the description of embodiment of the method
Formula.Concrete implementation mode is referred to the description of related method embodiment, does not repeat one by one herein.
A kind of device for determining oil volume factor that this specification one or more embodiment provides, can pass through difference
The degassed crude volume factor being affected by temperature and the solution gas oil volume factor influenced by solution gas are analyzed, it is accurate fixed
The determination degassed crude volume factor and solution gas oil volume factor of amount.Then, further the two is combined, is integrated
Consider the oil volume factor of temperature and solution gas.So as to the crude oil volume system of the determination sondage block of precise and high efficiency
Number.
Method or apparatus described in above-described embodiment that this specification provides can realize that business is patrolled by computer program
It collects and records on a storage medium, the storage medium can be read and be executed with computer, realize this specification embodiment institute
The effect of description scheme.Therefore, this specification also provides a kind of equipment of determining oil volume factor, including processor and storage
The memory of processor-executable instruction, when described instruction is executed by the processor realize the following steps are included:
Degassed crude volume system is determined according to the stratum degassed crude density and stock tank oil density of target interval
Number；
Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；
The crude oil of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Volume factor.
The storage medium may include the physical unit for storing information, usually by after information digitalization again with benefit
The media of the modes such as electricity consumption, magnetic or optics are stored.It may include: that letter is stored in the way of electric energy that the storage medium, which has,
The device of breath such as, various memory, such as RAM, ROM；The device of information is stored in the way of magnetic energy such as, hard disk, floppy disk, magnetic
Band, core memory, magnetic bubble memory, USB flash disk；Using optical mode storage information device such as, CD or DVD.Certainly, there are also it
Readable storage medium storing program for executing of his mode, such as quantum memory, graphene memory etc..
It should be noted that the equipment can also include other embodiments according to the description of embodiment of the method.Specifically
Implementation be referred to the description of related method embodiment, do not repeat one by one herein.
A kind of equipment of determining oil volume factor, can be affected by temperature by analyzing respectively described in above-described embodiment
Degassed crude volume factor and the solution gas oil volume factor that is influenced by solution gas, accurate quantitative analysis determine that degassing is former
Oil volume coefficient and solution gas oil volume factor.Then, further the two is combined, acquisition comprehensively considers temperature and molten
The oil volume factor vented one's spleen.So as to the oil volume factor of the determination sondage block of precise and high efficiency.
This specification also provides a kind of system of determining oil volume factor, and the system can be individually determining crude oil
The system of volume factor can also be applied in a plurality of types of oilfield development systems or data analysis system.Described is
System can be individual computer, also may include the one or more the methods or one or more for having used this specification
The practical operation device (such as excitation apparatus, reception device, receiving circuit) of embodiment device.The determining oil volume factor
System may include at least one processor and the memory for storing computer executable instructions, the processor executes institute
The step of method described in above-mentioned any one or multiple embodiments is realized when stating instruction.
It should be noted that system described above can also include others according to the description of method or Installation practice
Embodiment, concrete implementation mode are referred to the description of related method embodiment, do not repeat one by one herein.
A kind of system of determining oil volume factor, can be affected by temperature by analyzing respectively described in above-described embodiment
Degassed crude volume factor and the solution gas oil volume factor that is influenced by solution gas, accurate quantitative analysis determine that degassing is former
Oil volume coefficient and solution gas oil volume factor.Then, further the two is combined, acquisition comprehensively considers temperature and molten
The oil volume factor vented one's spleen.So as to the oil volume factor of the determination sondage block of precise and high efficiency.
It should be noted that this specification device or system described above according to the description of related method embodiment also
It may include other embodiments, concrete implementation mode is referred to the description of embodiment of the method, does not go to live in the household of one's in-laws on getting married one by one herein
It states.All the embodiments in this specification are described in a progressive manner, and same and similar part is mutual between each embodiment
Mutually referring to each embodiment focuses on the differences from other embodiments.Especially for hardware+program
For class, storage medium+program embodiment, since it is substantially similar to the method embodiment, so be described relatively simple, it is related
Place illustrates referring to the part of embodiment of the method.
Although being mentioned in this specification embodiment content such as stratum degassed crude density, degassed crude volume factor, dissolution
The operations such as the acquisition such as gas crude oil volume factor, definition, interaction, calculating, judgement and data describe, still, this specification embodiment
It is not limited to comply with standard situation described in data model/template or this specification embodiment.Certain industry marks
Embodiment modified slightly also may be implemented in standard or the practice processes described using customized mode or embodiment
State embodiment it is identical, it is equivalent or it is close or deformation after it is anticipated that implementation result.It is obtained using these modifications or deformed data
Take, store, judging, the embodiment of the acquisitions such as processing mode, still may belong to this specification optional embodiment range it
It is interior.
It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims
It is interior.In some cases, the movement recorded in detail in the claims or step can be come according to the sequence being different from embodiment
It executes and desired result still may be implemented.In addition, process depicted in the drawing not necessarily require show it is specific suitable
Sequence or consecutive order are just able to achieve desired result.In some embodiments, multitasking and parallel processing be also can
With or may be advantageous.
System, device, module or the unit that above-described embodiment illustrates can realize by computer chip or entity, or
It is realized by the product with certain function.It is a kind of typically to realize that equipment is computer.Specifically, computer for example can be
Any equipment in personal computer, laptop computer, vehicle-mounted human-computer interaction device, tablet computer or these equipment
Combination.
For convenience of description, it is divided into various modules when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each module can be realized in the same or multiple software and or hardware when specification one or more, it can also be with
The module for realizing same function is realized by the combination of multiple submodule or subelement etc..Installation practice described above is only
It is only illustrative, for example, in addition the division of the unit, only a kind of logical function partition can have in actual implementation
Division mode, such as multiple units or components can be combined or can be integrated into another system or some features can be with
Ignore, or does not execute.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be logical
Some interfaces are crossed, the indirect coupling or communication connection of device or unit can be electrical property, mechanical or other forms.
It is also known in the art that other than realizing controller in a manner of pure computer readable program code, it is complete
Entirely can by by method and step carry out programming in logic come so that controller with logic gate, switch, specific integrated circuit, programmable
Logic controller realizes identical function with the form for being embedded in microcontroller etc..Therefore this controller is considered one kind
Hardware component, and the structure that the device for realizing various functions that its inside includes can also be considered as in hardware component.Or
Person even, can will be considered as realizing the device of various functions either the software module of implementation method can be hardware again
Structure in component.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method or equipment of element.
It will be understood by those skilled in the art that this specification one or more embodiment can provide as method, system or calculating
Machine program product.Therefore, this specification one or more embodiment can be used complete hardware embodiment, complete software embodiment or
The form of embodiment combining software and hardware aspects.Moreover, this specification one or more embodiment can be used at one or
It is multiple wherein include computer usable program code computer-usable storage medium (including but not limited to magnetic disk storage,
CD-ROM, optical memory etc.) on the form of computer program product implemented.
This specification one or more embodiment can computer executable instructions it is general on
It hereinafter describes, such as program module.Generally, program module includes executing particular task or realization particular abstract data type
Routine, programs, objects, component, data structure etc..This this specification one can also be practiced in a distributed computing environment
Or multiple embodiments, in these distributed computing environments, by being held by the connected remote processing devices of communication network
Row task.In a distributed computing environment, program module can be located at the local and remote computer including storage equipment
In storage medium.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ",
The description of " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, structure, material
Or feature is contained at least one embodiment or example of this specification.In the present specification, to the signal of above-mentioned term
Property statement must not necessarily be directed to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other,
Those skilled in the art can be by different embodiments or examples described in this specification and different embodiments or examples
Feature is combined.
The foregoing is merely the embodiments of this specification, are not limited to this specification.For art technology
For personnel, this specification can have various modifications and variations.It is all made any within the spirit and principle of this specification
Modification, equivalent replacement, improvement etc., should be included within the scope of the claims of this specification.
Claims (10)
1. a kind of method of determining oil volume factor characterized by comprising
Degassed crude volume factor is determined according to the stratum degassed crude density and stock tank oil density of target interval；
Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；
The crude oil volume of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Coefficient.
2. determining the method for oil volume factor according to claim 1, which is characterized in that the ground according to target interval
Layer degassed crude density and stock tank oil density determine degassed crude volume factor, comprising:
The degassed crude volume system of target interval is determined according to the ratio of stock tank oil density and stratum degassed crude density
Number.
3. determining the method for oil volume factor according to claim 1, which is characterized in that the original according to target interval
Beginning dissolved gas oil ratio determines solution gas oil volume factor:
According to the primary Korean pine forest of sample areas and solution gas oil volume factor data, fit correlation formula is obtained；
According to the primary Korean pine forest of target interval, is calculated based on the fit correlation formula and obtain dissolution gas crude oil volume system
Number.
4. according to claim 1 or the method for the 3 determining oil volume factors, which is characterized in that the original of the target interval
Beginning dissolved gas oil ratio is determined using following manner:
It obtains and keeps the oil-producing data of the target interval in the case of bottom pressure above bubble point pressure, produces destiny evidence；
According to the oil-producing data, destiny is produced according to the primary Korean pine forest for determining target interval.
5. a kind of device of determining oil volume factor characterized by comprising
First volume factor determining module, for close according to the stratum degassed crude density and stock tank oil of target interval
It spends and determines degassed crude volume factor；
Second volume factor determining module, for determining dissolution gas crude oil volume system according to the primary Korean pine forest of target interval
Number；
Oil volume factor determining module, for true according to the degassed crude volume factor and solution gas oil volume factor
The oil volume factor of the fixed target interval.
6. the device of determining oil volume factor according to claim 5, which is characterized in that first volume factor is true
Cover half block includes:
First volume factor determination unit, for being determined according to the ratio of stock tank oil density and stratum degassed crude density
The degassed crude volume factor of target interval.
7. the device of determining oil volume factor according to claim 5, which is characterized in that second volume factor is true
Cover half block includes:
Fit correlation formula determination unit, for the primary Korean pine forest and solution gas oil volume factor according to sample areas
Data obtain fit correlation formula；
Second volume factor determination unit is based on the fit correlation formula for the primary Korean pine forest according to target interval
It calculates and obtains solution gas oil volume factor.
8. the device of determination oil volume factor according to claim 5 or 7, which is characterized in that second volume system
Counting determining module includes:
Second data capture unit, for obtaining the oil-producing number of the target interval in the case of keeping bottom pressure above bubble point pressure
According to, produce destiny evidence；
Dissolved gas oil ratio computing unit, for obtaining the original molten of target interval according to calculating according to the oil-producing data, production destiny
Solve gas-oil ratio.
9. a kind of equipment of determining oil volume factor, which is characterized in that can be performed including processor and for storage processor
The memory of instruction, when described instruction is executed by the processor realize the following steps are included:
Degassed crude volume factor is determined according to the stratum degassed crude density and stock tank oil density of target interval；
Solution gas oil volume factor is determined according to the primary Korean pine forest of target interval；
The crude oil volume of the target interval is determined according to the degassed crude volume factor and solution gas oil volume factor
Coefficient.
10. a kind of system of determining oil volume factor, which is characterized in that including at least one processor and storage computer
The memory of executable instruction, the processor realize any one of claim 1-4 the method when executing described instruction
The step of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986720.8A CN109308381A (en) | 2018-08-28 | 2018-08-28 | A kind of method, apparatus and system of determining oil volume factor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810986720.8A CN109308381A (en) | 2018-08-28 | 2018-08-28 | A kind of method, apparatus and system of determining oil volume factor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109308381A true CN109308381A (en) | 2019-02-05 |
Family
ID=65224015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810986720.8A Pending CN109308381A (en) | 2018-08-28 | 2018-08-28 | A kind of method, apparatus and system of determining oil volume factor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109308381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113536201A (en) * | 2020-04-21 | 2021-10-22 | 中国石油天然气股份有限公司 | Method and device for determining natural gas volume coefficient of condensate gas reservoir |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003228340A1 (en) * | 2002-03-19 | 2003-10-08 | Baker Geomark, Llc | Method and apparatus for simulating pvt parameters |
| CN105464652A (en) * | 2015-12-03 | 2016-04-06 | 恒泰艾普石油天然气技术服务股份有限公司 | Dynamic reserve calculation method and system for fracture and cave type carbonatite oil reservoir fracture and cave unit |
| CN105759015A (en) * | 2016-03-31 | 2016-07-13 | 华南理工大学 | Device and method for online measurement of gas injection crude oil volume factor and solubility |
-
2018
- 2018-08-28 CN CN201810986720.8A patent/CN109308381A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003228340A1 (en) * | 2002-03-19 | 2003-10-08 | Baker Geomark, Llc | Method and apparatus for simulating pvt parameters |
| CN105464652A (en) * | 2015-12-03 | 2016-04-06 | 恒泰艾普石油天然气技术服务股份有限公司 | Dynamic reserve calculation method and system for fracture and cave type carbonatite oil reservoir fracture and cave unit |
| CN105759015A (en) * | 2016-03-31 | 2016-07-13 | 华南理工大学 | Device and method for online measurement of gas injection crude oil volume factor and solubility |
Non-Patent Citations (3)
| Title |
|---|
| 于湘琦: "利用地面原油物性推算原始原油体积系数求取方法", 《当代化工研究》 * |
| 张爱华: "原油原始气油比与体积系数的经验公式探究", 《断块油气田》 * |
| 李玉蓉: "提高地层原油体积系数计算精度的方法", 《成都理工大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113536201A (en) * | 2020-04-21 | 2021-10-22 | 中国石油天然气股份有限公司 | Method and device for determining natural gas volume coefficient of condensate gas reservoir |
| CN113536201B (en) * | 2020-04-21 | 2023-09-26 | 中国石油天然气股份有限公司 | Method and device for determining volume coefficient of natural gas in condensate gas reservoir |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10198535B2 (en) | Methods and systems for machine-learning based simulation of flow | |
| US9187984B2 (en) | Methods and systems for machine-learning based simulation of flow | |
| US10087721B2 (en) | Methods and systems for machine—learning based simulation of flow | |
| US8849623B2 (en) | Systems and methods for reservoir development and management optimization | |
| Browning et al. | Barnett shale production outlook | |
| US20130096899A1 (en) | Methods And Systems For Machine - Learning Based Simulation of Flow | |
| US10054712B2 (en) | Computer-implemented methods for reservoir simulation with automated well completions and reservoir grid data quality assurance | |
| Avansi et al. | Numerical tuning in reservoir simulation: it is worth the effort in practical petroleum applications | |
| Khazaeni et al. | Intelligent production modeling using full field pattern recognition | |
| US20200318468A1 (en) | Quantifying well productivity and near wellbore flow conditions in gas reservoirs | |
| AU2011299495B2 (en) | System and method for simultaneous visualization of fluid flow within well completions and a reservoir | |
| CN108564264B (en) | Data processing method and device for determining water injection development effect | |
| US10997326B2 (en) | Time-to-finish simulation forecaster | |
| US10934812B2 (en) | Integrated a priori uncertainty parameter architecture in simulation model creation | |
| WO2022011015A1 (en) | Optimization of discrete fracture network (dfn) using streamlines and machine learning | |
| CN109308381A (en) | A kind of method, apparatus and system of determining oil volume factor | |
| CN109870743B (en) | Page-based seam space spread prediction method and device | |
| CN109358364B (en) | Method, device and system for establishing underground river reservoir body geological model | |
| CN108090653A (en) | A kind of Oil Reservoir Types recognition methods of reservoir and device | |
| CN114153002A (en) | Three-dimensional geological modeling method and device for natural fracture of reservoir, electronic equipment and medium | |
| US11808148B2 (en) | Systems and methods for back-allocation of oil produced by waterflooding | |
| CN112347707A (en) | Characterization method and device for flow heterogeneity of oil reservoir | |
| CN103329225A (en) | Modeling immiscible two phase flow in a subterranean formation | |
| Al Jumah et al. | Evolution of an Integrated Production System Model (IPSM) in a Greenfield oil environment | |
| Van-Dunem Martins et al. | Use of Machine Learning Approach on the Results of a 3D Grid Model to Identify Impacting Uncertainties and Derive Low/High Production Profiles, FRF Team |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190205 |
|
| WD01 | Invention patent application deemed withdrawn after publication |