CN106321039A - Method and device for obtaining shaft bottom steam parameters in oil production by steam injection - Google Patents
Method and device for obtaining shaft bottom steam parameters in oil production by steam injection Download PDFInfo
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- CN106321039A CN106321039A CN201510382503.4A CN201510382503A CN106321039A CN 106321039 A CN106321039 A CN 106321039A CN 201510382503 A CN201510382503 A CN 201510382503A CN 106321039 A CN106321039 A CN 106321039A
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Abstract
The invention relates to the field of oil production, and discloses a method and device for obtaining shaft bottom steam parameters in oil production by steam injection. The method can include the steps of determining the types of main factors influencing the shaft bottom steam parameters; determining the form of a response surface equation, representing the relation between the shaft bottom steam parameters and the main factors, based on the types of the main factors, and determining coefficients of all items in the response surface equation based on reference values of the main factors and reference values of corresponding shaft bottom steam parameters; actual values of the main factors of an oil well are obtained; and substituting the actual values into the response surface equation to obtain the values of the shaft bottom steam parameters of the oil well. By the application of the method and device, the calculating complexity of the shaft bottom steam parameters can be lowered while the precision of the required shaft bottom steam parameters is guaranteed.
Description
Technical field
It relates to field of petroleum exploitation, more particularly, to one for obtaining in steam injection recovery
The method of shaft bottom steam parameter and a kind of device for obtaining shaft bottom steam parameter in steam injection recovery.
Background technology
At present, in the residual petroleum resource of about 1,000,000,000 barrels of the whole world, 70% is above heavy oil resources.In China,
Land heavy oil, Colophonium resource account for more than the 20% of oil data total amount, and viscous crude accounts on global energy markets
There is critically important status.Due to the flowing high, difficult of thick oil viscosity, therefore can not be with conventional method exploitation.Grind
Studying carefully discovery, thick oil viscosity is the most sensitive to temperature, as long as temperature raises 8 DEG C～10 DEG C, its viscosity just reduces
1 times, therefore the purpose of viscosity of thickened oil can be reduced by high-pressure saturated steam being injected oil reservoir so that viscous crude
Recovery ratio can reach the level of 40%～60%.Steam injection oil recovery by heating is the major way of heavy crude producing.
Steam injection recovery can reduce Viscosity of Heavy Crude Oil, improve mobility ratio, reduces residual oil saturation and raising and drive
Oil efficiency.The effect of steam injection recovery depend on inject reservoir energy number, i.e. steam reaches shaft bottom
Time heat and the mass dryness fraction of steam have a strong impact on thickened oil recovery rate.
In some applications, directly shaft bottom steam parameter can be replaced to carry out subsequent treatment by well head data, but its
Precision is poor, and application effect is the most preferable.Due to the importance of this parameter, the most gradually develop pit shaft
The computation model coupled with oil reservoir.Concrete grammar is the thermal resistance first determining shaft structure, then by calculating
Pit shaft thermal resistance determine pit shaft overall heat-transfer coefficient, and then calculate the heat loss of gas injection pit shaft.In general, well
Cylinder thermal resistance is made up of six parts, and the calculating of wellbore heat loss will relate to and physical parameter and the pit shaft injecting steam
Numerous parameters that structure is relevant.The computation complexity of the method is higher, and the convergence that its simulation calculates is with stable
Property the most poor, be therefore used at present mostly carrying out the Analysis on Mechanism such as individual well, be not particularly suited for for
The steam injection numerical simulation calculation of big block.
Inventor finds through research, and obtain shaft bottom steam parameter accurately is to be highly desirable to relatively simplely
's.
Summary of the invention
Present disclosure proposes a kind of method obtaining shaft bottom steam parameter, it is while ensureing required precision,
Reduce computation complexity.The disclosure also proposed corresponding device.
One side according to the disclosure, it is proposed that a kind of for obtaining shaft bottom steam parameter in steam injection recovery
Method, the method comprises determining that the type of the main factor affecting shaft bottom steam parameter；Based on described main cause
The type of element determines the form of response surface equation, and reference value based on main factor and corresponding shaft bottom are steamed
The reference value of vapour parameter determines that coefficient every in response surface equation, described response surface equation represent described well
Relation between end steam parameter and described main factor；Obtain the actual value of the described main factor of oil well；And will
Described actual value substitutes into the value that described response surface equation obtains the shaft bottom steam parameter of described oil well.
According to another aspect of the present disclosure, it is proposed that a kind of for obtaining shaft bottom steam ginseng in steam injection recovery
The device of number, this device comprises determining that the parts of main factor, for determining the master affecting shaft bottom steam parameter
The type of factor；Set up the parts of response surface equation, determine response for type based on described main factor
The form of face equation, and the reference value of reference value based on main factor and corresponding shaft bottom steam parameter is next really
Coefficient every in the equation of provisioning response face, described response surface equation represents described shaft bottom steam parameter and described master
Relation between factor；Actual value obtaining widget, for obtaining the actual value of the described main factor of oil well；And
Shaft bottom steam parameter obtaining widget, obtains described oil well for described actual value is substituted into described response surface equation
The value of shaft bottom steam parameter.
The each side of the disclosure by set up shaft bottom steam parameter with affect this shaft bottom steam parameter main factor it
Between response surface equation, then the actual value of the main factor of oil well to be studied is substituted into this response surface equation, from
And can get the value of the shaft bottom steam parameter of oil well to be studied.The application disclosure can obtain by less amount of calculation
The accurately value of shaft bottom steam parameter.
Accompanying drawing explanation
By combining accompanying drawing, disclosure illustrative embodiments is described in more detail, the disclosure above-mentioned
And other purpose, feature and advantage will be apparent from, wherein, in disclosure illustrative embodiments
In, identical reference number typically represents same parts.
Fig. 1 show an embodiment according to the disclosure for obtaining shaft bottom steam in steam injection recovery
The flow chart of the method for parameter.
Fig. 2 shows reflection multiple parameters shadow to shaft bottom steam parameter of an embodiment according to the disclosure
The extreme difference of the degree of sound.
Fig. 3 shows the shaft bottom steam parameter of an embodiment based on application disclosure acquisition and based on application
The shaft bottom steam parameter that prior art (directly using well head parameter as shaft bottom steam parameter) obtains is carried out respectively
The cumulative recovery correlation curve figure that numerical simulation obtains.
Fig. 4 (a) and (b) respectively illustrate application pit shaft and oil reservoir coupling process obtains reservoir temperature field and
The reservoir temperature field that one embodiment of the application disclosure obtains.
Fig. 5 shows the shaft bottom steam parameter of an embodiment based on application disclosure acquisition and based on existing
The accumulation that the shaft bottom steam parameter that technology (pit shaft and oil reservoir coupling process) obtains is simulated obtaining respectively is adopted
Oil mass correlation curve figure.
Fig. 6 shows that an embodiment of the application disclosure obtains shaft bottom steam parameter and application prior art (well
Cylinder and oil reservoir coupling process) obtain the time-consuming comparison diagram of simulation of shaft bottom steam parameter.
Fig. 7 show an embodiment according to the disclosure for obtaining shaft bottom steam in steam injection recovery
The schematic block diagram of the device of parameter.
Detailed description of the invention
It is more fully described the preferred implementation of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The preferred implementation of the disclosure, however, it is to be appreciated that may be realized in various forms the disclosure and should be by
Embodiments set forth herein is limited.On the contrary, it is provided that these embodiments are to make the disclosure more saturating
Thorough and complete, and the scope of the present disclosure intactly can be conveyed to those skilled in the art.
Steam quality in the application can refer to the percent mass in every kilogram of wet saturated steam containing dry saturated steam
Number.
Present disclosure discloses the method for obtaining shaft bottom steam parameter in steam injection recovery, the method is permissible
Comprise determining that the type of the main factor affecting shaft bottom steam parameter；Type based on described main factor determines
The form of response surface equation, and reference value based on main factor and the reference value of corresponding shaft bottom steam parameter
Determine that coefficient every in response surface equation, described response surface equation represent described shaft bottom steam parameter and institute
State the relation between main factor；Obtain the actual value of the described main factor of oil well；And described actual value is substituted into
Described response surface equation obtains the value of the shaft bottom steam parameter of described oil well.
Fig. 1 show an embodiment according to the disclosure for obtaining shaft bottom steam in steam injection recovery
The flow chart of the method for parameter.The method may include that
S101, determines the type of the main factor affecting shaft bottom steam parameter.
Shaft bottom steam parameter (such as generally including shaft bottom steam quality and/or shaft bottom vapor (steam) temperature etc.) may be with
Many factors is correlated with.In some embodiments, those skilled in the art can think considerable impact
Factor is all as main factor.In other embodiments, only some factors can be obtained well as being used for
The main factor of end steam parameter.According to each factor, the influence degree of shaft bottom steam parameter can be determined main cause
Element.Because therefore shaft bottom steam quality and shaft bottom vapor (steam) temperature height correlation, even if obtaining both at needs
Time, it is possible to it is based only upon one of them to the type determining main factor.
Such as, the reference value of the multiple parameters relevant with shaft bottom steam parameter can be obtained and in the plurality of parameter
For the reference value of corresponding shaft bottom steam parameter in the case of this reference value, then can based on obtained these
Data also use the one in orthogonal experiment analysis, response surface analysis, principal component analysis and analytic hierarchy process (AHP) etc.
Determine the type of main factor.
For example, it is possible to (such as in-site measurement, looked into by any technological means well known by persons skilled in the art
Ask recorded data and/or available data is carried out integration etc.) obtain needed for multiple parameters (such as inject steaming
Strata pressure, note before vapour well head steam quality, injection steam wellhead temperature, injection rate, the oil reservoir degree of depth, gas injection
Formation temperature and/or production-injection ratio etc. before gas) reference value.Then as required these reference values can be substituted into and appoint
Existing model (such as pit shaft and oil coupling process etc.) of anticipating obtains steam parameter (such as shaft bottom, corresponding shaft bottom
Steam quality or shaft bottom vapor (steam) temperature) reference value.
Based on these data obtained, and special test algorithm for design (such as orthogonal experiment can be used afterwards
One in analysis, response surface analysis, principal component analysis and analytic hierarchy process (AHP) etc.) determine different parameters
(or a combination thereof or its deformation etc.) is to this shaft bottom steam parameter (such as shaft bottom steam quality or shaft bottom steam
Temperature) impact, this impact generally can be weighed by extreme difference or variance etc..
Rule of thumb or several factors of impact maximum can be selected to make according to the threshold value that affects set in advance
For main factor for subsequent treatment.The a few kinds of parameters that main factor is probably in multiple parameter, it is also possible to
These parameters are carried out the abstract and amount that obtains after refining.In order to make the type of main factor to be preferably applicable to
Whole area-of-interest, the reference value of above-mentioned obtained multiple parameters can include that the most each parameter is emerging in sense
Interest region in maximum and minima, may also include base value etc., as required alternative such as maximum with
Intermediate value between minima or the arithmetic mean of instantaneous value of multiple well are as base value.
Those skilled in the art may be used without any technological means known in the art and determine and affect shaft bottom steam
The type of the main factor of parameter.
S102, sets up response surface equation.Response surface equation can represent the pass between shaft bottom steam parameter and main factor
System.Type based on main factor can determine the form of response surface equation, and can reference based on main factor
Value and in the case of this main factor is this reference value corresponding shaft bottom steam parameter (such as generally include shaft bottom
Steam quality and/or shaft bottom vapor (steam) temperature) reference value determine coefficient every in response surface equation.When needing
When obtaining multiple shaft bottom steam parameter, multiple response surface equation can be set up.
Can be arranged as required to the number of times of response surface equation, usual number of times more high accuracy is the highest, but local accordingly
Journey is increasingly complex, and amount of calculation is the biggest.Inventor finds through research, in most of actual application scenarios,
Response surface equation is set to quadratic equation and can obtain preferable compromise between precision and amount of calculation.
Can by any technological means well known by persons skilled in the art (such as in-site measurement, inquiry remember
Record data and/or available data is carried out integration etc.) obtain needed for the reference value of each main factor.Then may be used
As required these reference values are substituted into any existing model (such as pit shaft and oil coupling process etc.) and obtains phase
The shaft bottom steam parameter (such as shaft bottom steam quality or shaft bottom vapor (steam) temperature) answered.
Form at response surface equation has determined that and the reference value of known main factor and corresponding shaft bottom steam
In the case of the reference value of parameter, can be (several with any technological means well known by persons skilled in the art
Value matching etc.) further determine that coefficient every in equation.
S103, obtains the actual value of the described main factor of oil well to be studied.
Can be by any technological means well known by persons skilled in the art (such as in-site measurement or inquire about record
Data and available data is carried out simple syndication etc.) obtain the actual value of the main factor of oil well to be studied.
S104, substitutes into these actual values the response surface equation set up and obtains the shaft bottom steam of oil well to be studied
The value of parameter.
Application example
For ease of understanding scheme and the effect thereof of disclosure embodiment, a concrete application example given below.
It will be understood by those skilled in the art that this example only for the purposes of understanding the disclosure, its any detail not with
Any mode limits the disclosure.
Major parameter and the reference value thereof of shaft bottom steam parameter is affected in certain work area of table 1
| Parameter | Minima | Base value | Maximum |
| Inject steam well head steam quality, f | 0.4 | 0.6 | 0.8 |
| Injection rate, m3/d | 3.5 | 4.5 | 5.5 |
| Inject steam wellhead temperature, DEG C | 150 | 220 | 290 |
| The oil reservoir degree of depth, m | 500 | 1000 | 1500 |
| Strata pressure before steam injection, Mpa | 4 | 6 | 8 |
| Formation temperature before steam injection, DEG C | 70 | 90 | 110 |
| Production-injection ratio, f | 1.0 | 1.1 | 1.2 |
Table 1 affects major parameter and the reference value thereof of shaft bottom steam parameter in showing certain work area.The of table 1
String lists multiple parameters and the linear module thereof that shaft bottom steam parameter can produce impact the most clearly；The
Two list relevant parameter minima in this work area；3rd lists relevant parameter in this work area
Base value, in this example, this base value is the intermediate value between maximum and minima；4th lists corresponding ginseng
Number maximum in this work area.
This example can use orthogonal experiment analysis determine the type of the main factor for subsequent treatment.Such as,
The orthogonal table of 7 factor 3 levels can be set up based on the information in table 1, thus 27 groups of experiments can be designed.Originally show
Example can use pit shaft and oil reservoir coupling process obtain shaft bottom steam quality required in these 27 groups experiments (such as,
Can also be shaft bottom vapor (steam) temperature) value.Those skilled in the art can be according to prior art means to these 27 groups
The data of experiment carry out quadrature analysis, obtain weighing this 7 parameters influence degree to shaft bottom steam quality
Extreme difference (for example, it is also possible to being variance), as shown in Figure 2.
Maximum several parameters of extreme difference can be selected as required as main factor, or extreme difference threshold value can be set,
Select its extreme difference parameter more than extreme difference threshold value as main factor.The main factor type determined in this example is note
Enter steam well head steam quality, inject steam wellhead temperature, the oil reservoir degree of depth and injection rate.
This example can be set up the Quadratic response equation of the relation represented between shaft bottom steam parameter and main factor.
As it has been described above, can obtain as required the reference value for determining the main factor needed for this response surface equation and
The reference value of corresponding shaft bottom steam parameter, then can be based on the reference value obtained by such as numerical fitting
Method determine undetermined coefficient every in response surface equation.The final response surface equation set up in this example
As follows:
-3-6-4
QUAL=-0.037+1.008 × A+7.333 × 10 × B+6 × 10 × C+1.625 × 10 × D
-3.750×10-3×AB+2.750×10-5×AC+1.667×10-4×AD
+2.150×10-5×BC+1.833×10-4×BD-9.667×10-7×CD
-0.022×A2-4.875×10-3×B2-2.500×10-9×C2-2.465×10-6×D2
Temp=12.534-30.29167 × A-4.950 × B-8.050 × 10-3×C+1.108×D
-0.375×AB-4.50×10-5×AC+0.137×AD
-2.00×10-4×BC+0.022×BD+5.917×10-5×CD
-0.521×A2+4.167×10-3×B2+7.167×10-7×C2-6.794×10-4×D2
Wherein, QUAL can represent shaft bottom steam quality, and Temp can represent shaft bottom vapor (steam) temperature, and A can represent injection
Steam well head steam quality, B can represent injection steam wellhead temperature, and C can represent the oil reservoir degree of depth, and D can represent injection
Speed.
The numerical simulation study of actual oil reservoir in above-mentioned response surface equation can being applied to this work area.Can be by certain oil
The injection steam well head steam quality of well, injection steam wellhead temperature, the oil reservoir degree of depth and the actual value generation of injection rate
Enter above-mentioned response surface equation, to obtain shaft bottom steam quality and the shaft bottom vapor (steam) temperature of this oil well.
Fig. 3 shows the shaft bottom steam parameter of an embodiment based on application disclosure acquisition and based on application
The shaft bottom steam parameter that prior art (directly using well head parameter as shaft bottom steam parameter) obtains is carried out respectively
The cumulative recovery correlation curve figure that numerical simulation obtains.It can be seen that directly using well head parameter as shaft bottom
The cumulative recovery that steam parameter is carried out obtained by numerical simulation is the most higher.
Fig. 4 (a) shows the oil reservoir section (X-Z section) of application pit shaft and the acquisition of oil reservoir coupling process
The schematic diagram in temperature field, Fig. 4 (b) shows the oil reservoir section (X-Z that an embodiment of the application disclosure obtains
Section) the schematic diagram in temperature field.Figure represents different shaft bottom steam parameters by the gray scale that the depth is different.
Fig. 5 shows the shaft bottom steam parameter obtained based on an embodiment according to the disclosure and based on pit shaft
The shaft bottom steam parameter obtained with oil reservoir coupling process is simulated the cumulative recovery correlation curve that obtains respectively
Figure.
The method obtaining shaft bottom steam parameter the application disclosure is can be seen that from Fig. 4 (a), (b) and Fig. 5
Performance and application pit shaft and oil reservoir coupling process performance closely, the acquisition shaft bottom steam in the disclosure
The method of parameter can replace pit shaft and oil reservoir coupling process effectively.
Fig. 6 shows that an embodiment of the application disclosure obtains shaft bottom steam parameter and application pit shaft and oil reservoir
Coupling process obtains the time-consuming comparison diagram of simulation of shaft bottom steam parameter.In figure, the column in left side represents these public affairs of application
The simulated time that the shaft bottom steam parameter that the embodiment opened obtains is consumed, the column on right side represents at other
Pit shaft and oil reservoir coupling process is applied to obtain the simulation that shaft bottom steam parameter is consumed in the case of part is the most identical
Time.It can be seen that the simulation that the embodiment in the application disclosure obtains shaft bottom steam parameter is the least
Simulation in time applying pit shaft and oil reservoir coupling process is time-consuming, and simulation time-consumingly can be reduced more than about 1/5.
Fig. 7 show an embodiment according to the disclosure for obtaining shaft bottom steam in steam injection recovery
The schematic block diagram of the device of parameter.This device may include determining whether the parts 701 of main factor, sets up response surface equation
Parts 702, actual value obtaining widget 703 and shaft bottom steam parameter obtaining widget 704.
Determine that the parts 701 of main factor can be used for determining the type of the main factor affecting shaft bottom steam parameter.Example
As, those skilled in the art can being thought, considerable influence factor is as main factor, it is possible to based on
Certain criterion (the such as different factor influence degree to shaft bottom steam parameter) determines main factor.Determine master
The parts 701 of factor can be used for obtaining the reference value of multiple parameters relevant with shaft bottom steam parameter and corresponding
The reference value of shaft bottom steam parameter, and can be used for reference value based on the multiple parameters obtained with corresponding
The reference value of shaft bottom steam parameter also uses orthogonal experiment analysis, response surface analysis, principal component analysis and layer
One in fractional analysis determines the type of described main factor.Shaft bottom steam parameter can include that shaft bottom steam is done
At least one in degree and shaft bottom vapor (steam) temperature.It is part or all of that the plurality of parameter can include in following parameters:
It is laminated before injecting steam well head steam quality, injection steam wellhead temperature, injection rate, the oil reservoir degree of depth, gas injection
Formation temperature, production-injection ratio before power, gas injection.The value of the multiple parameters obtained can include in the plurality of parameter
Each parameter maximum in area-of-interest and minima.
Set up the parts 702 of response surface equation to can be used for type based on described main factor and determine response surface side
The form of journey, and the reference value that can be used for reference value based on main factor and corresponding shaft bottom steam parameter is next
Determining coefficient every in (such as, pass through numerical fitting) response surface equation, this response surface equation can represent
Relation between shaft bottom steam parameter and main factor.This response surface equation can be quadratic equation.
Actual value obtaining widget 703 can be used for obtaining the actual value of the described main factor of oil well to be studied.
Shaft bottom steam parameter obtaining widget 704 can be used for that actual value substitutes into this response surface equation and obtains to be studied
The value of the shaft bottom steam parameter of oil well.
The disclosure can be method, device and/or computer program.Computer program can include
Computer-readable recording medium, containing for making processor realize the computer of various aspects of the disclosure
Readable program instructions.
Computer-readable recording medium can be to keep and to store the instruction used by instruction execution equipment
Tangible device.Computer-readable recording medium such as may be-but not limited to-storage device electric,
Magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or above-mentioned any conjunction
Suitable combination.The more specifically example (non exhaustive list) of computer-readable recording medium includes: portable
Formula computer disks, hard disk, random access memory (RAM), read only memory (ROM), erasable type can
Program read-only memory (EPROM or flash memory), static RAM (SRAM), portable pressure
Contracting dish read only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, machinery are compiled
Decoding apparatus, such as storage has the punch card of instruction or groove internal projection structure and above-mentioned any conjunction on it
Suitable combination.Computer-readable recording medium used herein above is not construed as instantaneous signal itself, such as
Radio wave or the electromagnetic wave of other Free propagations, the electromagnetic wave propagated by waveguide or other transmission mediums
(such as, by the light pulse of fiber optic cables) or by the signal of telecommunication of wire transfer.
Computer-readable program instructions as described herein can download to each from computer-readable recording medium
Calculating/processing equipment, or downloaded by network, such as the Internet, LAN, wide area network and/or wireless network
To outer computer or External memory equipment.Network can include copper transmission cable, fiber-optic transfer, wireless biography
Defeated, router, fire wall, switch, gateway computer and/or Edge Server.Each calculating/process sets
Adapter or network interface in Bei receive computer-readable program instructions from network, and forward this meter
Calculation machine readable program instructions, in the computer-readable recording medium being stored in each calculating/processing equipment.
Can be assembly instruction, instruction set architecture for performing the computer program instructions of disclosure operation
(ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, condition setup data,
Or the source code write with the combination in any of one or more programming languages or object code, described programming language
Speech includes OO programming language such as Smalltalk, C++ etc., and the process type programming language of routine
Speech such as " C " language or similar programming language.Computer-readable program instructions can fully be counted user
Perform on calculation machine, perform the most on the user computer, as the execution of independent software kit, a part
Part performs or on the remote computer completely on remote computer or server on the user computer
Perform.In the situation relating to remote computer, remote computer can be by the network packet of any kind
Include LAN (LAN) or wide area network (WAN) is connected to subscriber computer, or, it may be connected to outside meter
Calculation machine (such as utilizes ISP to pass through Internet connection).In certain embodiments, pass through
The status information utilizing computer-readable program instructions comes personalized customization electronic circuit, such as FPGA
Circuit, field programmable gate array (FPGA) or programmable logic array (PLA), this electronic circuit can
To perform computer-readable program instructions, thus realize various aspects of the disclosure.
Referring herein to the method according to disclosure embodiment, device (system) and the stream of computer program
Journey figure and/or block diagram describe various aspects of the disclosure.Should be appreciated that each side of flow chart and/or block diagram
In frame and flow chart and/or block diagram, the combination of each square frame, can be realized by computer-readable program instructions.
These computer-readable program instructions can be supplied to general purpose computer, special-purpose computer or other can compile
The processor of journey data processing equipment, thus produce a kind of machine so that computer is being passed through in these instructions
Or other programmable data processing means processor perform time, create in flowchart and/or block diagram
The device of the function/action of regulation in one or more square frames.Can also be these computer-readable program instructions
Storage in a computer-readable storage medium, these instruction make computer, programmable data processing means and/
Or other equipment work in a specific way, thus, storage has the computer-readable medium of instruction then to include one
Manufacture, it includes the function/action of regulation in the one or more square frames in flowchart and/or block diagram
The instruction of various aspects.
Can also computer-readable program instructions be loaded into computer, other programmable data processing means,
Or on miscellaneous equipment so that on computer, other programmable data processing means or miscellaneous equipment, perform one
Series of operative steps, to produce computer implemented process, so that at computer, other number able to programme
According to the one or more sides in the instruction flowchart performed in processing means or miscellaneous equipment and/or block diagram
Function/the action of regulation in frame.
Flow chart and block diagram in accompanying drawing show the system of multiple embodiments, method and meter according to the disclosure
Architectural framework in the cards, function and the operation of calculation machine program product.In this, flow chart or block diagram
In each square frame can represent a module, program segment or a part for instruction, described module, program segment
Or a part for instruction comprises the executable instruction of one or more logic function for realizing regulation.Having
In a little realizations as replacement, the function marked in square frame can also be to be different from marked in accompanying drawing suitable
Sequence occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, and they sometimes can also
Performing in the opposite order, this is depending on involved function.It is also noted that block diagram and/or flow chart
In each square frame and the combination of square frame in block diagram and/or flow chart, can be by the function performing regulation
Or the special hardware based system of action realizes, or can be with specialized hardware and computer instruction
Combination realizes.
Being described above the presently disclosed embodiments, described above is exemplary, and non-exclusive,
And it is also not necessarily limited to disclosed each embodiment.In the scope and spirit without departing from illustrated each embodiment
In the case of, many modifications and changes will be apparent from for those skilled in the art.
The selection of term used herein, it is intended to explain that the principle of each embodiment, reality are applied or to market best
In the technological improvement of technology, or make other those of ordinary skill of the art be understood that to disclose herein
Each embodiment.
Claims (10)
1., for the method obtaining shaft bottom steam parameter in steam injection recovery, the method includes:
Determine the type of the main factor affecting shaft bottom steam parameter；
Type based on described main factor determines the form of response surface equation, and reference based on main factor
The reference value of value and corresponding shaft bottom steam parameter determines coefficient every in response surface equation, described response
Face equation represents the relation between described shaft bottom steam parameter and described main factor；
Obtain the actual value of the described main factor of oil well；And
Described actual value is substituted into the value that described response surface equation obtains the shaft bottom steam parameter of described oil well.
Method the most according to claim 1, wherein it is determined that affect the main factor of shaft bottom steam parameter
Type includes:
Based on the type that the influence degree of shaft bottom steam parameter is determined main factor.
Method the most according to claim 1, wherein it is determined that affect the main factor of shaft bottom steam parameter
Type includes:
Obtain reference value and the ginseng of corresponding shaft bottom steam parameter of the multiple parameters relevant with shaft bottom steam parameter
Examine value；And
Reference values based on the multiple parameters obtained and the reference value of corresponding shaft bottom steam parameter, and use
One in orthogonal experiment analysis, response surface analysis, principal component analysis and analytic hierarchy process (AHP) determines described master
The type of factor.
Method the most according to claim 3, wherein, the reference value of the multiple parameters obtained includes institute
State the maximum in area-of-interest of each parameter in multiple parameter and minima.
Method the most according to claim 1, wherein, described response surface equation is quadratic equation.
6. according to the method described in claim 3 or 4, wherein,
Described shaft bottom steam parameter includes at least one in shaft bottom steam quality and shaft bottom vapor (steam) temperature；And
It is part or all of that the plurality of parameter includes in following parameters: injects steam well head steam quality, inject and steam
Formation temperature before strata pressure, gas injection before vapour wellhead temperature, injection rate, the oil reservoir degree of depth, gas injection, adopt note
Ratio, injection-production ratio.
7., for obtaining a device for shaft bottom steam parameter in steam injection recovery, this device includes:
Determine the parts of main factor, for determining the type of the main factor affecting shaft bottom steam parameter；
Set up the parts of response surface equation, determine response surface equation for type based on described main factor
Form, and the reference value of reference value based on main factor and corresponding shaft bottom steam parameter determines the response surface
Coefficient every in equation, described response surface equation represents between described shaft bottom steam parameter and described main factor
Relation；
Actual value obtaining widget, for obtaining the actual value of the described main factor of oil well；And
Shaft bottom steam parameter obtaining widget, obtains described for described actual value substitutes into described response surface equation
The value of the shaft bottom steam parameter of oil well.
Device the most according to claim 7, wherein it is determined that affect the main factor of shaft bottom steam parameter
Type includes:
Based on the type that the influence degree of shaft bottom steam parameter is determined main factor.
Device the most according to claim 7, wherein it is determined that affect the main factor of shaft bottom steam parameter
Type includes:
The described parts determining main factor are for obtaining the reference value of the multiple parameters relevant with shaft bottom steam parameter
Reference value with corresponding shaft bottom steam parameter；And
Described determine that the parts of main factor are for reference values based on the multiple parameters obtained and corresponding shaft bottom
The reference value of steam parameter also uses orthogonal experiment analysis, response surface analysis, principal component analysis and level to divide
One in analysis method determines the type of described main factor.
Device the most according to claim 9, wherein,
Described shaft bottom steam parameter includes at least one in shaft bottom steam quality and shaft bottom vapor (steam) temperature；And
It is part or all of that the plurality of parameter includes in following parameters: injects steam well head steam quality, inject and steam
Formation temperature before strata pressure, gas injection before vapour wellhead temperature, injection rate, the oil reservoir degree of depth, gas injection, adopt note
Ratio, injection-production ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108960546A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of CO2 handles up well choosing method and device |
| CN109306865A (en) * | 2017-07-28 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of Carbonate Reservoir gas injection parameter optimization method |
| CN110344796A (en) * | 2018-04-04 | 2019-10-18 | 中国石油化工股份有限公司 | Steam injection parameter prediction technique based on three Parameter Principles |
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