CN107246900B - A kind of method and device of determining oil-water interface position - Google Patents
A kind of method and device of determining oil-water interface position Download PDFInfo
- Publication number
- CN107246900B CN107246900B CN201710389361.3A CN201710389361A CN107246900B CN 107246900 B CN107246900 B CN 107246900B CN 201710389361 A CN201710389361 A CN 201710389361A CN 107246900 B CN107246900 B CN 107246900B
- Authority
- CN
- China
- Prior art keywords
- pressure
- residual compression
- target
- survey
- oil
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The embodiment of the present application discloses a kind of method and device of determining oil-water interface position.The described method includes: obtaining the survey pressure data in region interval of interest to be measured at multiple water layer pressure taps position and the survey pressure data at multiple oil reservoir pressure taps position；The interval of interest includes: oil reservoir and water layer；The survey pressure data include: stratum observed pressure and depth of stratum；Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, determine target Hydrostatic pressure gradient；Data are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position, determine the corresponding measuring pressure basis surface pressure of the interval of interest；Data are pressed according to the survey at the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir pressure tap position, determine the oil-water interface position of the interval of interest.The accuracy of identified oil-water interface position can be improved.
Description
Technical field
This application involves petroleum exploration and development technical field, in particular to a kind of the method and dress of determining oil-water interface position
It sets.
Background technique
The determination of oil-water interface position is oil & gas pool size estimation and one of the key problem that reserves calculate.In the prior art
There are many kinds of the determination methods of oil-water interfaces, and wherein pressure-depth method is one of common method.
Pressure-depth method has main steps that: obtaining the stratum observed pressure of Different Strata depth in interval of interest；Its
In, which includes oil reservoir and water layer；According to the stratum observed pressure of Different Strata depth, depth of stratum and ground are drawn
Layer observed pressure relational graph, obtains depth of stratum-stratum observed pressure sectional view, then by surveying to depth of stratum-stratum
Data point on pressure traverse figure carries out straight line fitting recurrence, obtains reservoir pressure gradient line and aquifer pressure gradient line, due to
The oil density of oil reservoir and the water density of water layer are different, between the slope of reservoir pressure gradient line and the slope of aquifer pressure gradient line
It can have differences, it can be using corresponding depth of stratum at this two straight-line intersections as oil-water interfaces position.
At least there are the following problems in the prior art for inventor's discovery: for the interval of interest with heavy crude reservoir, oil is close
Difference between degree and water density is smaller, and this lesser difference may be close to the measurement accuracy of means of pressure measurement, may
The slope of obtained reservoir pressure gradient line and aquifer pressure gradient line is caused to be closer to, so that more difficult accurately determine mesh
Interval in oil-water interfaces position.
Summary of the invention
The purpose of the embodiment of the present application is to provide a kind of method and device of determining oil-water interface position, is determined with improving
Oil-water interface position accuracy.
In order to solve the above technical problems, the method and device that the embodiment of the present application provides a kind of determining oil-water interface position is
It is achieved:
A kind of method of determining oil-water interface position, comprising:
Obtain survey pressure data and the multiple oil reservoir pressure taps in region interval of interest to be measured at multiple water layer pressure taps position
Data are pressed in survey at position；The interval of interest includes: oil reservoir and water layer；Survey pressure data include: stratum observed pressure and
Depth of stratum；
Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, determine target
Hydrostatic pressure gradient；
According at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position survey press data, determine described in
The corresponding measuring pressure basis surface pressure of interval of interest；
At the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir pressure tap position
Survey press data, determine the oil-water interface position of the interval of interest.
Survey in preferred embodiment, at the initial Hydrostatic pressure gradient set of basis and the multiple water layer pressure tap position
Data are pressed, determine target Hydrostatic pressure gradient, comprising:
Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, are gathered using examination
Method determines the target Hydrostatic pressure gradient.
Survey in preferred embodiment, at the initial Hydrostatic pressure gradient set of basis and the multiple water layer pressure tap position
Data are pressed, the target Hydrostatic pressure gradient is determined using the examination method of gathering, comprising:
Pressure is surveyed according to an initial Hydrostatic pressure gradient in the initial Hydrostatic pressure gradient set and the multiple water layer
Stratum observed pressure and depth of stratum in survey pressure data at point position, determine that the initial Hydrostatic pressure gradient is corresponding described more
Residual compression at a water layer pressure tap position；
According to the residual compression and depth of stratum at the multiple water layer pressure tap position, the initial hydrostatic pressure ladder is determined
Spend residual compression fitting a straight line in a corresponding water layer；
Calculate the residual compression variance at the multiple water layer pressure tap position corresponding with the Hydrostatic pressure gradient value；One
A initial Hydrostatic pressure gradient correspondence obtains a residual compression fitting a straight line and a residual compression variance, the initial hydrostatic
Barometric gradient set correspondence obtains a plurality of residual compression fitting a straight line and multiple residual compression variances；
Using the initial Hydrostatic pressure gradient for meeting following conditions as the target Hydrostatic pressure gradient: being obtained described
In a plurality of fitting a straight line, the corresponding obtained residual compression fitting a straight line and residual compression vertical line shape of the initial Hydrostatic pressure gradient
It is minimum at the angle of angle；Alternatively, the initial Hydrostatic pressure gradient is corresponding in obtained multiple residual compression variances
Obtained residual compression variance is minimum.
In preferred embodiment, when in the initial Hydrostatic pressure gradient set at least two initial Hydrostatic pressure gradients to deserved
It, will be at the beginning of described at least two when the residual compression fitting a straight line arrived and the identical and minimum residual compression vertical line formation angle of angle
The corresponding obtained the smallest initial Hydrostatic pressure gradient of residual compression variance is as the target hydrostatic in beginning Hydrostatic pressure gradient
Barometric gradient.
In preferred embodiment, obtained when initial Hydrostatic pressure gradients correspondences multiple in the initial Hydrostatic pressure gradient set
When residual compression variance is identical and minimum, obtained residual compression corresponding in the multiple initial Hydrostatic pressure gradient is fitted straight
Line and residual compression vertical line form the smallest initial Hydrostatic pressure gradient of included angle as the target Hydrostatic pressure gradient.
In preferred embodiment, the survey according at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position
Data are pressed, determine the corresponding measuring pressure basis surface pressure of the interval of interest, comprising:
Data, determining and institute are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position
State the corresponding target residual compression in multiple water layer pressure taps position；
It is pressed the average value of target residual compression corresponding with the multiple water layer pressure tap position as the survey
Benchmark surface pressure.
It is described according to the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple in preferred embodiment
Data are pressed in survey at oil reservoir pressure tap position, determine the oil-water interface position of the interval of interest, comprising:
According to stratum observed pressure and depth of stratum, Yi Jisuo in the survey pressure data at the multiple oil reservoir pressure tap position
Target Hydrostatic pressure gradient is stated, determines target residual compression corresponding with the multiple oil reservoir pressure tap position；
According to target residual compression corresponding with the multiple oil reservoir pressure tap position and depth of stratum, determine described in
Residual compression target fitting a straight line in oil reservoir；
According to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis surface pressure, the target zone is determined
The oil-water interface position of section.
It is described according to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis face pressure in preferred embodiment
Power determines the oil-water interface position of the interval of interest, comprising:
According to the measuring pressure basis surface pressure, residual compression target fitting a straight line in the water layer is determined；
By the friendship of residual compression target fitting a straight line in residual compression target fitting a straight line in the oil reservoir and the water layer
Oil-water interface position of the corresponding depth of stratum as the interval of interest at point.
It is described according to the measuring pressure basis surface pressure in preferred embodiment, determine that residual compression target is fitted in the water layer
Straight line, comprising:
Establishing using residual compression is abscissa and depth of stratum as the coordinate system of ordinate；
Using the vertical line that residual compression in the coordinate system is the measuring pressure basis surface pressure as pressure remaining in the water layer
Power target fitting a straight line.
A kind of device of determining oil-water interface position, described device include: to survey pressure data acquisition module, target hydrostatic pressure
Gradient determining module, measuring pressure basis surface pressure determining module and oil-water interface position determining module；Wherein,
Data acquisition module is pressed in the survey, for obtaining in region interval of interest to be measured at multiple water layer pressure taps position
Data are pressed in the survey surveyed at pressure data and multiple oil reservoir pressure taps position；The interval of interest includes: oil reservoir and water layer；The survey pressure
Data include: stratum observed pressure and depth of stratum；
The target Hydrostatic pressure gradient determining module, for according to initial Hydrostatic pressure gradient set and the multiple water
Data are pressed in survey at layer pressure tap position, determine target Hydrostatic pressure gradient；
The measuring pressure basis surface pressure determining module, for according to the target Hydrostatic pressure gradient and the multiple water layer
Data are pressed in survey at pressure tap position, determine the corresponding measuring pressure basis surface pressure of the interval of interest；
The oil-water interface position determining module, for according to the measuring pressure basis surface pressure, the target hydrostatic pressure
Data are pressed in survey at gradient and the multiple oil reservoir pressure tap position, determine the oil-water interface position of the interval of interest.
In preferred embodiment, the measuring pressure basis surface pressure determining module includes: water layer residual compression determining module and benchmark
Surface pressure determining module；Wherein,
The water layer residual compression determining module, for being surveyed according to the target Hydrostatic pressure gradient and the multiple water layer
Data are pressed in survey at pressure point position, determine target residual compression corresponding with the multiple water layer pressure tap position；
The benchmark surface pressure determining module, for remaining target corresponding with the multiple water layer pressure tap position
The average value of overbottom pressure power is as the measuring pressure basis surface pressure.
In preferred embodiment, the oil-water interface position determining module includes: oil reservoir residual compression determining module, fitting a straight line
Determining module and interface location determining module；Wherein,
The oil reservoir residual compression determining module, for according in the survey pressure data at the multiple oil reservoir pressure tap position
Stratum observed pressure and depth of stratum and the target Hydrostatic pressure gradient, determining and the multiple oil reservoir pressure tap position
Corresponding target residual compression；
The fitting a straight line determining module, for surplus according to target corresponding with the multiple oil reservoir pressure tap position
Overbottom pressure power and depth of stratum determine residual compression target fitting a straight line in the oil reservoir；
The interface location determining module, for being pressed according to residual compression target fitting a straight line in the oil reservoir and the survey
Benchmark surface pressure determines the oil-water interface position of the interval of interest.
The embodiment of the present application provides a kind of method and device of determining oil-water interface position, available region mesh to be measured
Interval in the survey pressure data at multiple water layer pressure taps position and the survey at multiple oil reservoir pressure taps position press data.According to first
Data are pressed in survey at beginning Hydrostatic pressure gradient set and the multiple water layer pressure tap position, can determine target hydrostatic pressure ladder
Degree.Data are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position, can be determined described
The corresponding measuring pressure basis surface pressure of interval of interest.According to the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and institute
The survey pressure data at multiple oil reservoir pressure taps position are stated, can determine the oil-water interface position of the interval of interest.For having
The interval of interest of heavy crude reservoir, the application method can relatively accurately obtain oil according to identified measuring pressure basis surface pressure
The intersection position of the residual compression target fitting a straight line in residual compression target fitting a straight line and water layer in layer, so as to mention
Height determines the accuracy of the oil-water interface position of the interval of interest.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the embodiment of the method for determining oil-water interface position of the application；
Fig. 2 is that the fitting of residual compression corresponding to target Hydrostatic pressure gradient and depth of stratum in the embodiment of the present application is straight
Line schematic diagram；
Fig. 3 is the composite structural diagram for the Installation practice that the application determines oil-water interface position；
Fig. 4 is the composition that the application determines measuring pressure basis surface pressure determining module in the Installation practice of oil-water interface position
Structure chart；
Fig. 5 is the composition knot that the application determines oil-water interface position determining module in the Installation practice of oil-water interface position
Composition.
Specific embodiment
The embodiment of the present application provides a kind of method and device of determining oil-water interface position.
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without creative efforts
Range.
Fig. 1 is a kind of flow chart of the embodiment of the method for determining oil-water interface position of the application.As shown in Figure 1, described true
Determine the method for oil-water interface position, comprising the following steps:
Step S101: survey pressure data and the multiple oil in region interval of interest to be measured at multiple water layer pressure taps position are obtained
Data are pressed in survey at layer pressure tap position.
The region to be measured can be entire oil field region, be also possible to the partial region in oil field.The interval of interest
Single trap can be formed.Heavy crude reservoir is populated in the trap.The interval of interest may include: oil reservoir and water layer.It is described
Pressure between oil reservoir and water layer can be interconnected, and not have other liquid barrier layers between this two layers.
Depth of stratum in the interval of interest at multiple water layer pressure taps position is different.Multiple oil in the interval of interest
Depth of stratum at layer pressure tap position is also different.
The survey pressure data may include: stratum observed pressure and depth of stratum.It is acquired by way of drilling well with data
Mode, the available survey presses data.
Step S102: number is pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position
According to determining target Hydrostatic pressure gradient.
The a certain interval in a certain work area can form single trap.Oil reservoir can be populated in the trap.In the interval,
Residual compression at a certain depth of stratum is the hydrostatic pressure at stratum observed pressure and the depth of stratum at the depth of stratum
Difference.Wherein, in the water layer of the interval, the residual compression of Different Strata depth is identical, as a constant.In the interval
In oil reservoir, the residual compression at any depth of stratum is all larger than the constant, and remoter apart from oil-water interface position, and residual compression is got over
Greatly.The constant is usually the corresponding measuring pressure basis surface pressure of the interval.Usually certain in the interval can be indicated using following formula
Residual compression at pressure tap position:
Pr=P-Pw=P-Gwh (1)
In formula (1), PrIndicate the residual compression at the pressure tap position, unit is pound/square inch (psi), and P is indicated
Stratum observed pressure at the pressure tap position, unit psi, PwIndicate that the hydrostatic pressure at the pressure tap position, unit are
Psi, GwIndicate Hydrostatic pressure gradient, Gw=0.1450377 ρwG, ρwIndicate the water density under formation conditions, unit is gram/cube
Centimetre (g/cm3), g indicates acceleration of gravity, and value is square (m/s of 9.78 meter per seconds2), 0.1450377 for the PSI system of unit and
Unit conversion factor between the MPA system of unit.
Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, can be determined
Target Hydrostatic pressure gradient.The initial Hydrostatic pressure gradient set can be pre-set one group of Hydrostatic pressure gradient value.
In one embodiment, at according to initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position
Pressure data are surveyed, the target Hydrostatic pressure gradient can be determined using the examination method of gathering.Specifically, according to the initial hydrostatic pressure
Stratum is real in survey pressure data in gradient set at an initial Hydrostatic pressure gradient and the multiple water layer pressure tap position
Measuring pressure and depth of stratum can determine surplus at the corresponding the multiple water layer pressure tap position of the initial Hydrostatic pressure gradient
Overbottom pressure power.According to the residual compression and depth of stratum at the multiple water layer pressure tap position, the initial hydrostatic pressing can be determined
Residual compression fitting a straight line in the corresponding water layer of force gradient.It can calculate corresponding with the Hydrostatic pressure gradient value described more
Residual compression variance at a water layer pressure tap position.In this way, an initial Hydrostatic pressure gradient is corresponding to obtain a remaining pressure
Power fitting a straight line and a residual compression variance, the initial Hydrostatic pressure gradient set can correspond to obtain a plurality of residual compression
Fitting a straight line and multiple residual compression variances.It can be quiet as the target using the initial Hydrostatic pressure gradient for meeting following conditions
Hydraulic pressure force gradient: in the obtained a plurality of fitting a straight line, the corresponding obtained residual compression of initial Hydrostatic pressure gradient
The angle that fitting a straight line and residual compression vertical line form angle is minimum.Wherein it is possible to the residue at water layer pressure tap position
Pressure is abscissa and depth of stratum is that ordinate constitutes a coordinate system.The residual compression vertical line can be in the coordinate system
The parallel a certain vertical line of ordinate.
It is possible to further calculate the corresponding the multiple water layer of the initial Hydrostatic pressure gradient using the formula (1)
Residual compression at pressure tap position.
In another embodiment, when at least two initial hydrostatic pressure ladder in the initial Hydrostatic pressure gradient set
It, can be by institute when the corresponding obtained residual compression fitting a straight line of degree and the identical and minimum residual compression vertical line formation angle of angle
State the corresponding obtained the smallest initial Hydrostatic pressure gradient conduct of residual compression variance at least two initial Hydrostatic pressure gradients
The target Hydrostatic pressure gradient.
It in another embodiment, can be quiet as the target using the initial Hydrostatic pressure gradient for meeting following conditions
Hydraulic pressure force gradient: in obtained multiple residual compression variances, the corresponding obtained residue of initial Hydrostatic pressure gradient
Pressure variance is minimum.
In another embodiment, when multiple initial Hydrostatic pressure gradients pair in the initial Hydrostatic pressure gradient set
When the residual compression variance that should be obtained is identical and minimum, can will in the multiple initial Hydrostatic pressure gradient it is corresponding obtain it is surplus
Overbottom pressure power fitting a straight line and the residual compression vertical line formation the smallest initial Hydrostatic pressure gradient of included angle are quiet as the target
Hydraulic pressure force gradient.
Step S103: number is pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position
According to determining the corresponding measuring pressure basis surface pressure of the interval of interest.
Specifically, data are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position,
It can determine target residual compression corresponding with the multiple water layer pressure tap position.It described can will be surveyed with multiple water layers
The average value of the corresponding target residual compression in pressure point position is as the measuring pressure basis surface pressure.
Step S104: it is surveyed according to the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir
Data are pressed in survey at pressure point position, determine the oil-water interface position of the interval of interest.
According to stratum observed pressure and depth of stratum, Yi Jisuo in the survey pressure data at the multiple oil reservoir pressure tap position
Target Hydrostatic pressure gradient is stated, can determine target residual compression corresponding with the multiple oil reservoir pressure tap position.Root
According to the target residual compression corresponding with multiple oil reservoir pressure taps position and depth of stratum, can determine in the oil reservoir
Residual compression target fitting a straight line.According to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis surface pressure,
It can determine the oil-water interface position of the interval of interest.
In one embodiment, according to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis face pressure
Power determines the oil-water interface position of the interval of interest.Specifically, due to the residual compression phase of Different Strata depth in water layer
Together, it is the measuring pressure basis surface pressure, according to the measuring pressure basis surface pressure, can determines residual compression mesh in the water layer
Mark fitting a straight line.Residual compression target in residual compression target fitting a straight line in the oil reservoir and the water layer can be fitted straight
Oil-water interface position of the corresponding depth of stratum of the point of intersection of line as the interval of interest.
In one embodiment, according to the measuring pressure basis surface pressure, determine that residual compression target is quasi- in the water layer
Close straight line.Specifically, can establish using residual compression is abscissa and depth of stratum as the coordinate system of ordinate.It can will be described
Residual compression is that the vertical line of the measuring pressure basis surface pressure is quasi- as residual compression target in the water layer in the coordinate system of foundation
Close straight line.
For example, Fig. 2 is residual compression corresponding to target Hydrostatic pressure gradient and depth of stratum in the embodiment of the present application
Fitting a straight line schematic diagram.Abscissa is residual compression in Fig. 2, and ordinate is depth of stratum.Depth of stratum and residual compression are one by one
It is corresponding.As shown in Fig. 2, the corresponding measuring pressure basis surface pressure of the interval of interest is the residue in water layer at multiple pressure tap positions
The average value of pressure, i.e. 854.07psi.In this way, the residual compression target fitting a straight line in the water layer is that residual compression is
854.07psi and the vertical line parallel with ordinate.By the intersection point of residual compression target fitting a straight line and the vertical line in the oil reservoir
Locate oil-water interface position of the corresponding depth of stratum as the interval of interest, i.e. the depth of stratum position that is 533.3m.In this way,
For the interval of interest with heavy crude reservoir, based on identified measuring pressure basis surface pressure, it can accurately obtain in oil reservoir and remain
The intersection position of residual compression target fitting a straight line in remaining pressure target fitting a straight line and water layer, so as to relatively accurately
Determine the oil-water interface position of interval of interest.
The embodiment of the method for the determining oil-water interface position, multiple water layers are surveyed in available region interval of interest to be measured
Data are pressed in survey pressure data at pressure point position and the survey at multiple oil reservoir pressure taps position.According to initial Hydrostatic pressure gradient set
Data are pressed with the survey at the multiple water layer pressure tap position, can determine target Hydrostatic pressure gradient.It is quiet according to the target
Data are pressed in survey at hydraulic pressure force gradient and the multiple water layer pressure tap position, can determine the corresponding survey pressure of the interval of interest
Benchmark surface pressure.According to the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir pressure tap position
The survey pressure data for setting place, can determine the oil-water interface position of the interval of interest.For the interval of interest with heavy crude reservoir,
The application method can be according to identified measuring pressure basis surface pressure, and the residual compression target relatively accurately obtained in oil reservoir is quasi-
The intersection position for closing the residual compression target fitting a straight line in straight line and water layer, determines the interval of interest so as to improve
The accuracy of oil-water interface position.
Fig. 3 is the composite structural diagram for the Installation practice that the application determines oil-water interface position.As shown in figure 3, the oil
The device of water termination position may include: to survey pressure data acquisition module 100, target Hydrostatic pressure gradient determining module 200, survey pressure
Benchmark surface pressure determining module 300 and oil-water interface position determining module 400.
Data acquisition module 100 is pressed in the survey, can be used for obtaining multiple water layer pressure taps in region interval of interest to be measured
Data are pressed in survey pressure data at position and the survey at multiple oil reservoir pressure taps position；The interval of interest may include: oil reservoir and
Water layer；The survey pressure data may include: stratum observed pressure and depth of stratum.
The target Hydrostatic pressure gradient determining module 200, can be used for according to initial Hydrostatic pressure gradient set and institute
The survey pressure data at multiple water layer pressure taps position are stated, determine target Hydrostatic pressure gradient.
The measuring pressure basis surface pressure determining module 300 can be used for according to the target Hydrostatic pressure gradient and described
Data are pressed in survey at multiple water layer pressure taps position, determine the corresponding measuring pressure basis surface pressure of the interval of interest.
The oil-water interface position determining module 400 can be used for quiet according to the measuring pressure basis surface pressure, the target
Data are pressed in survey at hydraulic pressure force gradient and the multiple oil reservoir pressure tap position, determine the oil-water interfaces position of the interval of interest
It sets.
Fig. 4 is the composition that the application determines measuring pressure basis surface pressure determining module in the Installation practice of oil-water interface position
Structure chart.As shown in figure 4, measuring pressure basis surface pressure determining module 300 may include: water layer residual compression determining module in Fig. 3
310 and benchmark surface pressure determining module 320.
The water layer residual compression determining module 310 can be used for according to the target Hydrostatic pressure gradient and described more
Data are pressed in survey at a water layer pressure tap position, determine target residue pressure corresponding with the multiple water layer pressure tap position
Power.
The benchmark surface pressure determining module 320 can be used for respectively corresponding described with multiple water layer pressure taps position
Target residual compression average value as the measuring pressure basis surface pressure.
Fig. 5 is the composition knot that the application determines oil-water interface position determining module in the Installation practice of oil-water interface position
Composition.As shown in figure 5, in Fig. 3 oil-water interface position determining module 400 may include: oil reservoir residual compression determining module 410,
Fitting a straight line determining module 420 and interface location determining module 430.
The oil reservoir residual compression determining module 410, can be used for according to the survey at the multiple oil reservoir pressure tap position
Stratum observed pressure and depth of stratum and the target Hydrostatic pressure gradient in data are pressed, it is determining to be surveyed with the multiple oil reservoir
The corresponding target residual compression in pressure point position.
The fitting a straight line determining module 420 can be used for basis and respectively correspond with the multiple oil reservoir pressure tap position
Target residual compression and depth of stratum, determine residual compression target fitting a straight line in the oil reservoir.
The interface location determining module 430, can be used for according to residual compression target fitting a straight line in the oil reservoir and
The measuring pressure basis surface pressure, determines the oil-water interface position of the interval of interest.
The embodiment of the method phase of the Installation practice of the determining oil-water interface position and the determining oil-water interface position
It is corresponding, the present processes embodiment, and the technical effect of adquisitiones embodiment may be implemented.
In the 1990s, the improvement of a technology can be distinguished clearly be on hardware improvement (for example,
Improvement to circuit structures such as diode, transistor, switches) or software on improvement (improvement for method flow).So
And with the development of technology, the improvement of current many method flows can be considered as directly improving for hardware circuit.
Designer nearly all obtains corresponding hardware circuit by the way that improved method flow to be programmed into hardware circuit.Cause
This, it cannot be said that the improvement of a method flow cannot be realized with hardware entities module.For example, programmable logic device
(Programmable Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate
Array, FPGA)) it is exactly such a integrated circuit, logic function determines device programming by user.By designer
Voluntarily programming comes a digital display circuit " integrated " on a piece of PLD, designs and makes without asking chip maker
Dedicated IC chip 2.Moreover, nowadays, substitution manually makes IC chip, and this programming is also used instead mostly
" logic compiler (logic compiler) " software realizes that software compiler used is similar when it writes with program development
Seemingly, and the source code before compiling also handy specific programming language is write, this is referred to as hardware description language
(Hardware Description Language, HDL), and HDL is also not only a kind of, but there are many kind, such as ABEL
(Advanced Boolean Expression Language)、AHDL(Altera Hardware Description
Language)、Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL
(Java Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby
Hardware Description Language) etc., VHDL (Very-High-Speed is most generally used at present
Integrated Circuit Hardware Description Language) and Verilog2.Those skilled in the art
It will be apparent to the skilled artisan that only needing method flow slightly programming in logic and being programmed into integrated circuit with above-mentioned several hardware description languages
In, so that it may it is readily available the hardware circuit for realizing the logical method process.
Controller can be implemented in any suitable manner, for example, controller can take such as microprocessor or processing
The computer for the computer readable program code (such as software or firmware) that device and storage can be executed by (micro-) processor can
Read medium, logic gate, switch, specific integrated circuit (Application Specific Integrated Circuit,
ASIC), the form of programmable logic controller (PLC) and insertion microcontroller, the example of controller includes but is not limited to following microcontroller
Device: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320 are deposited
Memory controller is also implemented as a part of the control logic of memory.
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 for including in it can also be considered as in hardware component.Or
Even, can will be considered as realizing the device of various functions either the software module of implementation method can be Hardware Subdivision again
Structure in part.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by the product with certain function.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when application.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products, in a typical configuration
In, calculating equipment includes one or more processors (CPU), input/output interface, network interface and memory.The computer is soft
Part product may include that some instructions are used so that a computer equipment (can be personal computer, server or network
Equipment etc.) execute method described in certain parts of each embodiment of the application or embodiment.The computer software product can
To be stored in memory, memory may include the non-volatile memory in computer-readable medium, random access memory
(RAM) and/or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer
The example of readable medium.Computer-readable medium includes that permanent and non-permanent, removable and non-removable media can be by
Any method or technique come realize information store.Information can be computer readable instructions, data structure, the module of program or its
His data.The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only memory
(ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory techniques, CD-ROM are read-only
Memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or
Other magnetic storage devices or any other non-transmission medium, can be used for storage can be accessed by a computing device information.According to
Herein defines, and computer-readable medium does not include of short duration computer readable media (transitory media), such as modulation
Data-signal and carrier wave.
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.
The application can be used in numerous general or special purpose computing system environments or configuration.Such as: personal computer, clothes
Business device computer, handheld device or portable device, laptop device, multicomputer system, microprocessor-based system, set
Top box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer including any of the above system or equipment
Distributed computing environment etc..
The application can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Generally, program module includes routines performing specific tasks or implementing specific abstract data types, programs, objects, group
Part, data structure etc..The application can also be practiced in a distributed computing environment, in these distributed computing environments, by
Task is executed by the connected remote processing devices of communication network.In a distributed computing environment, program module can be with
In the local and remote computer storage media including storage equipment.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Claims (12)
1. a kind of method of determining oil-water interface position characterized by comprising
Obtain survey pressure data and the multiple oil reservoir pressure taps position in region interval of interest to be measured at multiple water layer pressure taps position
Data are pressed in the survey at place；The interval of interest includes: oil reservoir and water layer；The survey pressure data include: stratum observed pressure and stratum
Depth；
Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, determine target hydrostatic
Barometric gradient；
Data are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position, determine the purpose
The corresponding measuring pressure basis surface pressure of interval；
According to the survey at the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir pressure tap position
Data are pressed, determine the oil-water interface position of the interval of interest.
2. a kind of method of determining oil-water interface position according to claim 1, which is characterized in that the basis is initially quiet
Data are pressed in survey at hydraulic pressure force gradient set and the multiple water layer pressure tap position, determine target Hydrostatic pressure gradient, comprising:
Data are pressed according to the survey at initial Hydrostatic pressure gradient set and the multiple water layer pressure tap position, method is gathered using examination
Determine the target Hydrostatic pressure gradient.
3. a kind of method of determining oil-water interface position according to claim 2, which is characterized in that the basis is initially quiet
Data are pressed in survey at hydraulic pressure force gradient set and the multiple water layer pressure tap position, determine that the target is quiet using the examination method of gathering
Hydraulic pressure force gradient, comprising:
According to an initial Hydrostatic pressure gradient and the multiple water layer pressure tap position in the initial Hydrostatic pressure gradient set
Stratum observed pressure and depth of stratum in the survey pressure data at place are set, determines the corresponding the multiple water of the initial Hydrostatic pressure gradient
Residual compression at layer pressure tap position；
According to the residual compression and depth of stratum at the multiple water layer pressure tap position, the initial Hydrostatic pressure gradient pair is determined
Residual compression fitting a straight line in the water layer answered；
Calculate the residual compression variance at the multiple water layer pressure tap position corresponding with the Hydrostatic pressure gradient value；At the beginning of one
Beginning Hydrostatic pressure gradient correspondence obtains a residual compression fitting a straight line and a residual compression variance, the initial hydrostatic pressure
Gradient set correspondence obtains a plurality of residual compression fitting a straight line and multiple residual compression variances；
Using the initial Hydrostatic pressure gradient for meeting following conditions as the target Hydrostatic pressure gradient: it is described obtain it is a plurality of
In fitting a straight line, the corresponding obtained residual compression fitting a straight line of initial Hydrostatic pressure gradient is formed with residual compression vertical line is pressed from both sides
The angle at angle is minimum；Alternatively, the initial Hydrostatic pressure gradient correspondence obtains in obtained multiple residual compression variances
Residual compression variance it is minimum.
4. a kind of method of determining oil-water interface position according to claim 3, which is characterized in that when the initial hydrostatic
The corresponding obtained residual compression fitting a straight line of at least two initial Hydrostatic pressure gradients and residual compression hang down in barometric gradient set
It, will corresponding obtained remaining pressure in described at least two initial Hydrostatic pressure gradients when the angle of line formation angle is identical and minimum
The smallest initial Hydrostatic pressure gradient of power variance is as the target Hydrostatic pressure gradient.
5. a kind of method of determining oil-water interface position according to claim 3, which is characterized in that when the initial hydrostatic
It, will be described more when the residual compression variance that multiple initial Hydrostatic pressure gradients correspondences obtain in barometric gradient set is identical and minimum
It is minimum to form included angle for corresponding obtained residual compression fitting a straight line and residual compression vertical line in a initial Hydrostatic pressure gradient
Initial Hydrostatic pressure gradient as the target Hydrostatic pressure gradient.
6. a kind of method of determining oil-water interface position according to claim 1, which is characterized in that described according to the mesh
It marks the survey at Hydrostatic pressure gradient and the multiple water layer pressure tap position and presses data, determine the corresponding survey pressure of the interval of interest
Benchmark surface pressure, comprising:
Data are pressed according to the survey at the target Hydrostatic pressure gradient and the multiple water layer pressure tap position, it is determining and described more
The corresponding target residual compression in a water layer pressure tap position；
Using the average value of target residual compression corresponding with the multiple water layer pressure tap position as the measuring pressure basis
Surface pressure.
7. a kind of method of determining oil-water interface position according to claim 1, which is characterized in that described according to the survey
It presses the survey at benchmark surface pressure, the target Hydrostatic pressure gradient and the multiple oil reservoir pressure tap position to press data, determines institute
State the oil-water interface position of interval of interest, comprising:
According to stratum observed pressure and depth of stratum and the mesh in the survey pressure data at the multiple oil reservoir pressure tap position
Hydrostatic pressure gradient is marked, determines target residual compression corresponding with the multiple oil reservoir pressure tap position；
According to target residual compression corresponding with the multiple oil reservoir pressure tap position and depth of stratum, the oil reservoir is determined
Interior residual compression target fitting a straight line；
According to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis surface pressure, the interval of interest is determined
Oil-water interface position.
8. a kind of method of determining oil-water interface position according to claim 7, which is characterized in that described according to the oil
Residual compression target fitting a straight line and the measuring pressure basis surface pressure in layer, determine the oil-water interface position of the interval of interest,
Include:
According to the measuring pressure basis surface pressure, residual compression target fitting a straight line in the water layer is determined；
By the point of intersection of residual compression target fitting a straight line in residual compression target fitting a straight line in the oil reservoir and the water layer
Oil-water interface position of the corresponding depth of stratum as the interval of interest.
9. a kind of method of determining oil-water interface position according to claim 8, which is characterized in that described according to the survey
Benchmark surface pressure is pressed, determines residual compression target fitting a straight line in the water layer, comprising:
Establishing using residual compression is abscissa and depth of stratum as the coordinate system of ordinate；
Using the vertical line that residual compression in the coordinate system is the measuring pressure basis surface pressure as residual compression mesh in the water layer
Mark fitting a straight line.
10. a kind of device of determining oil-water interface position, which is characterized in that described device includes: to survey pressure data acquisition module, mesh
Mark Hydrostatic pressure gradient determining module, measuring pressure basis surface pressure determining module and oil-water interface position determining module；Wherein,
Data acquisition module is pressed in the survey, for obtaining the survey pressure in region interval of interest to be measured at multiple water layer pressure taps position
Data are pressed in survey at data and multiple oil reservoir pressure taps position；The interval of interest includes: oil reservoir and water layer；Data are pressed in the survey
It include: stratum observed pressure and depth of stratum；
The target Hydrostatic pressure gradient determining module, for being surveyed according to initial Hydrostatic pressure gradient set and the multiple water layer
Data are pressed in survey at pressure point position, determine target Hydrostatic pressure gradient；
The measuring pressure basis surface pressure determining module, for surveying pressure according to the target Hydrostatic pressure gradient and the multiple water layer
Data are pressed in survey at point position, determine the corresponding measuring pressure basis surface pressure of the interval of interest；
The oil-water interface position determining module, for according to the measuring pressure basis surface pressure, the target Hydrostatic pressure gradient
Data are pressed with the survey at the multiple oil reservoir pressure tap position, determine the oil-water interface position of the interval of interest.
11. a kind of device of determining oil-water interface position according to claim 10, which is characterized in that the measuring pressure basis
Surface pressure determining module includes: water layer residual compression determining module and benchmark surface pressure determining module；Wherein,
The water layer residual compression determining module, for according to the target Hydrostatic pressure gradient and the multiple water layer pressure tap
Data are pressed in survey at position, determine target residual compression corresponding with the multiple water layer pressure tap position；
The benchmark surface pressure determining module, being used for will target residue pressure corresponding with the multiple water layer pressure tap position
The average value of power is as the measuring pressure basis surface pressure.
12. a kind of device of determining oil-water interface position according to claim 10, which is characterized in that the oil-water interfaces
Position determination module includes: oil reservoir residual compression determining module, fitting a straight line determining module and interface location determining module；Its
In,
The oil reservoir residual compression determining module, for according to stratum in the survey pressure data at the multiple oil reservoir pressure tap position
Observed pressure and depth of stratum and the target Hydrostatic pressure gradient, it is determining to distinguish with the multiple oil reservoir pressure tap position
Corresponding target residual compression；
The fitting a straight line determining module, for according to target residue pressure corresponding with the multiple oil reservoir pressure tap position
Power and depth of stratum determine residual compression target fitting a straight line in the oil reservoir；
The interface location determining module, for according to residual compression target fitting a straight line in the oil reservoir and the measuring pressure basis
Surface pressure determines the oil-water interface position of the interval of interest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389361.3A CN107246900B (en) | 2017-05-27 | 2017-05-27 | A kind of method and device of determining oil-water interface position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389361.3A CN107246900B (en) | 2017-05-27 | 2017-05-27 | A kind of method and device of determining oil-water interface position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246900A CN107246900A (en) | 2017-10-13 |
| CN107246900B true CN107246900B (en) | 2019-09-10 |
Family
ID=60017683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710389361.3A Active CN107246900B (en) | 2017-05-27 | 2017-05-27 | A kind of method and device of determining oil-water interface position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107246900B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044118A (en) * | 2018-10-15 | 2020-04-21 | 中国石油天然气股份有限公司 | System, method and device for measuring oil-water interface height in normal-pressure oil tank |
| CN112446065A (en) * | 2019-09-03 | 2021-03-05 | 中国石油天然气集团有限公司 | Oil-water interface depth determination method and system |
| CN113803054B (en) * | 2020-06-11 | 2024-04-09 | 中国石油化工股份有限公司 | Oil-water interface depth determining method and early warning method for preventing production well water channeling |
| CN111811988B (en) * | 2020-07-14 | 2023-05-12 | 中海石油(中国)有限公司 | Method for predicting gas-oil interface in trap based on fluid analysis and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550773A (en) * | 2015-12-10 | 2016-05-04 | 中国石油天然气股份有限公司 | Method and device for predicting position of oil-water interface |
-
2017
- 2017-05-27 CN CN201710389361.3A patent/CN107246900B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550773A (en) * | 2015-12-10 | 2016-05-04 | 中国石油天然气股份有限公司 | Method and device for predicting position of oil-water interface |
Non-Patent Citations (2)
| Title |
|---|
| 确定油水界面的新方法—剩余压力法;胡晓庆 等;《中国海上油气》;20110228;第23卷(第1期);第40页右栏-42页左栏 |
| 确定油水界面的新方法—水压头法和剩余水压头法;赵鹏飞;《中国海上油气》;20130831;第25卷(第4期);全文 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107246900A (en) | 2017-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107246900B (en) | A kind of method and device of determining oil-water interface position | |
| CN107339087B (en) | A kind of water injection rate splits a point method and device | |
| US10921960B2 (en) | Mapping geological features using facies-type data manipulation | |
| Yu et al. | 3D analytical modeling of hydraulic fracturing stimulated reservoir volume | |
| CN105631935A (en) | BIM-based three-dimensional geological automatic modeling method | |
| US20130250726A1 (en) | Quantitative analysis of time-lapse seismic data | |
| CN105659293A (en) | Identifying and extracting stratigraphic layers in one or more bodies representing a geological structure | |
| CN107420092B (en) | Down-hole string leak point positioning method and device | |
| CN106153495B (en) | Rock gas adsorbs phase volume measurement method and device | |
| CN112862967B (en) | Method and device for establishing three-dimensional geological model | |
| CN106202813B (en) | A kind of method and device calculating oil viscosity | |
| CN106970423B (en) | A kind of method and device of determining shale gas stratigraphic structure model | |
| CN104391319A (en) | Determination method and device for seismic data acqusition system | |
| CN106845086B (en) | Formation pressure calculation method and device | |
| CN104570070A (en) | Method and equipment for building two-dimensional near-surface geological model | |
| CN106204725B (en) | A kind of horizontal well path bearing calibration and device | |
| CN106908842B (en) | A kind of method and device of determining individual well sedimentary micro curve | |
| CN106529147B (en) | A kind of determining oil and gas reserves and water body full scale process and device | |
| CN106772596B (en) | A kind of method and device of determining pre-stack time migration velocity field | |
| US10726173B2 (en) | Method and computer program product for determining in-situ fluid distributions for oil fields using material balance and streamline-derived well-pair volumes | |
| Lønøy et al. | Geocellular rendering of cave surveys in paleokarst reservoir models | |
| AU2015355549A1 (en) | System and method for geomechanical and rock physics elastostatic modeling | |
| CN107219562B (en) | A kind of method and device of determining uranium ore position of stratum | |
| CN108629463A (en) | Crustal stress prediction technique and device | |
| CN104392068B (en) | A kind of processing method of the oil reservoir of closed boundary containing straight line curve matching |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |