CN105372166B - The acquisition methods and device of argillaceous sandstone permeability - Google Patents
The acquisition methods and device of argillaceous sandstone permeability Download PDFInfo
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Abstract
The invention discloses a kind of acquisition methods and device of argillaceous sandstone permeability, belong to oil reservoir logging technical field.Methods described includes：Obtain effecive porosity, irreducible water saturation and the median grain diameter of target rock sample；According to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity parameter, the calculated value of the permeability of acquisition target rock sample；According to the calculated value of the permeability of target rock sample and the normalizing parameter of the permeability of the rock sample prestored, the standard value of the permeability of acquisition target rock sample, the permeability as target rock sample.Using the present invention, the computational accuracy of permeability can be improved.
Description
Technical field
The present invention relates to oil reservoir logging technical field, the more particularly to a kind of acquisition methods and dress of argillaceous sandstone permeability
Put.
Background technology
Permeability is an important parameter of oil-gas reservoir logging evaluation, in terrestrial facies and marine facies oil-gas bearing basin, hydrocarbon source rock
The height of the permeability of (argillaceous rocks, coal petrography) and other rocks reflects the good of the migrating capability of oil-gas reservoir petrochina or natural gas
Bad, the prediction of the accurate reservoir productivity for being estimated as oil-gas reservoir of permeability is laid a good foundation.
Generally, permeability can be calculated by the KC models by Kozeny and Carman propositions, the formula of the KC models can
To be expressed asWherein, K is permeability, φeThe reservoir effecive porosity calculated for well-log information, S are
For reservoir than face value, τ is rock duct tortuosity parameter.Obtaining reservoir effecive porosity φeWhen, it is necessary to be selected in reservoir
Representative rock sample, and the experiment of rock grain size Physical Property Analysis, nuclear magnetic resonance experiment etc. are carried out to these rock samples, to be stored up
Layer effecive porosity φeValue.
During the present invention is realized, inventor has found that prior art at least has problems with：
Formula in KC models is derived based on clean sandstone, and argillaceous sandstone is different from clean sandstone, is forming mud
The materials such as mud particles can be included during matter sandstone, the porosity between rock particles can so reduced so that argillaceous sandstone
Effecive porosity can be entirely different with the effecive porosity of clean sandstone, therefore, for argillaceous sandstone, if using in KC models
Formula calculate permeability, then the permeability that obtains can be inaccurate.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of acquisition methods of argillaceous sandstone permeability
And device.The technical scheme is as follows：
First aspect, there is provided a kind of acquisition methods of argillaceous sandstone permeability, methods described include：
Obtain effecive porosity, irreducible water saturation and the median grain diameter of target rock sample；
It is circuitous according to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, obtain the calculated value of the permeability of the target rock sample；
According to the calculated value of the permeability of the target rock sample and the normalizing parameter of the permeability of rock sample prestored,
The standard value of the permeability of the target rock sample is obtained, the permeability as the target rock sample.
Alternatively, methods described also includes：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
According to the effecive porosity of at least two rock sample, irreducible water saturation, median grain diameter and default rock pore
Road tortuosity parameter, obtain the calculated value of the permeability of at least two rock sample；
The measured value of the permeability of at least two rock sample measured in the Physical Property Analysis experiment of rock sample is obtained, according to
The measured value of the permeability of at least two rock sample, at least two rock sample permeability calculated value and default standard
Change parameter acquiring algorithm, obtain the normalizing parameter of the permeability of rock sample, and stored.
Alternatively, the measured value of the permeability according at least two rock sample, at least two rock sample ooze
The calculated value and default normalizing parameter acquisition algorithm of saturating rate, obtain the normalizing parameter of the permeability of rock sample, and deposited
Storage, including：
According to the measured value of the permeability of at least two rock sample, the calculated value of the permeability of at least two rock sample
And least square method, determine the measured value of the permeability of at least two rock sample and the permeability of at least two rock sample
The least square coefficient of calculated value, as the normalizing parameter of the permeability of rock sample, and is stored.
Alternatively, it is described according to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default
Rock duct tortuosity parameter, the calculated value of the permeability of the target rock sample is obtained, including：
It is circuitous according to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, use formulaThe calculated value of the permeability of the target rock sample is calculated；Its
In, φeFor the effecive porosity of the target rock sample, SwbFor the irreducible water saturation of the target rock sample, MdFor the target
The median grain diameter of rock sample, τ are rock duct tortuosity parameter, KaFor the calculated value of the permeability of the target rock sample.
Alternatively, the calculated value of the permeability according to the target rock sample and the permeability of rock sample that prestores
Normalizing parameter, the standard value of the permeability of the target rock sample is obtained, as the permeability of the target rock sample, including：
According to the calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, the mesh is calculated
Mark the standard value of the permeability of rock sample, the permeability as the target rock sample；Wherein, KaFor the permeability of the target rock sample
Calculated value, a, b be rock sample permeability normalizing parameter, K be the target rock sample permeability standard value.
Second aspect, there is provided a kind of acquisition device of argillaceous sandstone permeability, described device include：
First acquisition module, for obtaining the effecive porosity, irreducible water saturation and median grain diameter of target rock sample；
Second acquisition module, for the effecive porosity according to the target rock sample, irreducible water saturation, median grain diameter and
Default rock duct tortuosity parameter, obtain the calculated value of the permeability of the target rock sample；
3rd acquisition module, for the calculated value of the permeability according to the target rock sample and oozing for the rock sample that prestores
The normalizing parameter of saturating rate, obtain the standard value of the permeability of the target rock sample, the permeability as the target rock sample.
Alternatively, described device also includes memory module, is used for：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
According to the effecive porosity of at least two rock sample, irreducible water saturation, median grain diameter and default rock pore
Road tortuosity parameter, obtain the calculated value of the permeability of at least two rock sample；
The measured value of the permeability of at least two rock sample measured in the Physical Property Analysis experiment of rock sample is obtained, according to
The measured value of the permeability of at least two rock sample, at least two rock sample permeability calculated value and default standard
Change parameter acquiring algorithm, obtain the normalizing parameter of the permeability of rock sample, and stored.
Alternatively, the memory module, is used for：
According to the measured value of the permeability of at least two rock sample, the calculated value of the permeability of at least two rock sample
And least square method, determine the measured value of the permeability of at least two rock sample and the permeability of at least two rock sample
The least square coefficient of calculated value, as the normalizing parameter of the permeability of rock sample, and is stored.
Alternatively, second acquisition module, is used for：
It is circuitous according to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, use formulaThe calculated value of the permeability of the target rock sample is calculated；Its
In, φeFor the effecive porosity of the target rock sample, SwbFor the irreducible water saturation of the target rock sample, MdFor the target
The median grain diameter of rock sample, τ are rock duct tortuosity parameter, KaFor the calculated value of the permeability of the target rock sample.
Alternatively, the 3rd acquisition module, is used for：
According to the calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, the mesh is calculated
Mark the standard value of the permeability of rock sample, the permeability as the target rock sample；Wherein, KaFor the permeability of the target rock sample
Calculated value, a, b be rock sample permeability normalizing parameter, K be the target rock sample permeability standard value.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
In the embodiment of the present invention, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained, according to mesh
Effecive porosity, irreducible water saturation, median grain diameter and the default rock duct tortuosity parameter of rock sample are marked, obtains target rock
The calculated value of the permeability of sample, according to the calculated value of the permeability of target rock sample and the standard of the permeability of the rock sample prestored
Change parameter, obtain the standard value of the permeability of target rock sample, as the permeability of target rock sample, so, fully taking into account
In the case that effect porosity, irreducible water saturation and median grain diameter influence to caused by the permeability of rock, pass through above-mentioned parameter
Induction and conclusion goes out to calculate the formula of the permeability of rock, overcomes existing calculation of permeability in complicated muddy ore
The problem of difficulty is big is accurately estimated with complicated muddy ore permeability using being restricted, so as to improve permeability
Computational accuracy.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of acquisition methods flow chart of argillaceous sandstone permeability provided in an embodiment of the present invention；
Fig. 2 is a kind of coordinate schematic diagram using permeability as parameter provided in an embodiment of the present invention；
Fig. 3 is a kind of acquisition device structural representation of argillaceous sandstone permeability provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of terminal provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
The embodiments of the invention provide a kind of acquisition methods of argillaceous sandstone permeability, as shown in figure 1, the processing of this method
Flow can include the steps：
Step 101, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained.
Step 102, according to the effecive porosity of target rock sample, irreducible water saturation and median grain diameter and default rock pore
Road tortuosity parameter, obtain the calculated value of the permeability of target rock sample.
Step 103, according to the calculated value of the permeability of target rock sample and the normalizing parameter of the permeability of default rock sample,
Obtain the standard value of the permeability of target rock sample, the permeability as target rock sample.
In the embodiment of the present invention, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained, according to mesh
Effecive porosity, irreducible water saturation, median grain diameter and the default rock duct tortuosity parameter of rock sample are marked, obtains target rock
The calculated value of the permeability of sample, according to the calculated value of the permeability of target rock sample and the standard of the permeability of the rock sample prestored
Change parameter, obtain the standard value of the permeability of target rock sample, as the permeability of target rock sample, so, fully taking into account
In the case that effect porosity, irreducible water saturation and median grain diameter influence to caused by the permeability of rock, pass through above-mentioned parameter
Induction and conclusion goes out to calculate the formula of the permeability of rock, overcomes existing calculation of permeability in complicated muddy ore
The problem of difficulty is big is accurately estimated with complicated muddy ore permeability using being restricted, so as to improve permeability
Computational accuracy.
Embodiment two
The embodiments of the invention provide a kind of acquisition methods of argillaceous sandstone permeability, the executive agent of this method can be
Terminal.Wherein, terminal can be fixed terminal, such as computer.
In the method, terminal can prestore the normalizing parameter of the permeability of the rock sample of different zones, wherein, rock
The permeability of stone is an important parameter of oil-gas reservoir logging evaluation, and the height of the permeability of rock reflects oil-gas reservoir petrochina
Or the quality of the migrating capability of natural gas.Normalizing parameter can be configured according to the actual requirements.
Terminal obtains and stores the normalizing parameter of the permeability of the rock sample of different zones can be presented below with varied
A kind of optional processing mode, may comprise steps of：
Step 1, obtain effecive porosity, irreducible water saturation and the median grain diameter of at least two rock samples.
In force, polylith rock can be taken out in the stratum of the position where oil-gas reservoir, and is chosen in these rocks
Most representational multiple rocks are selected in the oil-gas reservoir reservoir as rock sample, it is then possible to be carried out to the rock sample picked out
Related experiment, characteristic possessed by these rock samples is determined, specifically, can be according to《Clastic rock Analytical Methods of Grain Grade SY/T
5434-1999》Flow as defined in standard carries out the analysis experiment of rock sample median grain diameter, obtains rock sample median grain diameter, can be according to《Rock
Heart analysis method SY/T 5336-2006》Physical Property Analysis are carried out to rock sample as defined in standard, obtain porosity, the infiltration of rock sample
Rate, can also be according to《Rock sample nuclear magnetic resonance parameter laboratory measurement specification SY/T 6490-2007》Flow as defined in standard is carried out
Rock NMR is tested, and obtains the effecive porosity of rock sample, irreducible water saturation experimental data.
Step 2, according to the effecive porosity of at least two rock samples, irreducible water saturation, median grain diameter and default rock
Duct tortuosity parameter, obtain the calculated value of the permeability of at least two rock samples.
In force, formula can be utilizedThe permeability of rock is calculated, wherein, φeFor rock
The effecive porosity of sample, SwbFor the irreducible water saturation of rock sample, MdFor the median grain diameter of rock sample, τ joins for rock duct tortuosity
Number, KaFor the calculated value of the permeability of rock sample.For different regions, rock duct tortuosity parameter can be different, calculating
During the permeability of rock sample, numerical value of the numerical value (such as 1) as rock duct tortuosity parameter can be preset, then can be with
Based on the permeability of the numerical computations rock sample, calibration finally is carried out to the calculated value of the permeability of obtained rock sample, the present invention
Can be preset in embodiment rock duct tortuosity parameter numerical value be 1, then can by the effecive porosity of multiple rock samples,
Irreducible water saturation, median grain diameter, substitute into above-mentioned formula and calculated, obtain the calculated value of the permeability of multiple rock samples.
It is the effecive porosities of 19 rock samples, irreducible water saturation, median grain diameter, the measured value of permeability referring to table 1,
And the calculated value of the permeability for the rock sample being calculated according to above-mentioned parameter.
Table 1
Step 3, the measured value of the permeability of at least two rock samples measured in the Physical Property Analysis experiment of rock sample is obtained,
According to the measured value of the permeability of at least two rock samples, the calculated value of the permeability of at least two rock samples and default standardization ginseng
Number acquisition algorithm, obtains the normalizing parameter of the permeability of rock sample, and stored.
In force, tested by the Physical Property Analysis of rock sample, the permeability of multiple rock samples can be measured, as multiple rock samples
Permeability measured value, by the measured value of the permeability of multiple rock samples, the calculated value of the permeability of multiple rock samples, using default
Normalizing parameter acquisition algorithm (such as geometric average value-based algorithm, arithmetic average value-based algorithm) calculated, obtain oozing for rock sample
The normalizing parameter of saturating rate, and by normalizing parameter storage in the terminal.
Alternatively, the processing mode of above-mentioned steps three can be with varied, a kind of optional processing mode presented below, tool
Body can include herein below：According to the measured value of the permeability of at least two rock samples, the meter of the permeability of at least two rock samples
Calculation value and least square method, determine the calculating of the measured value of the permeability of at least two rock samples and the permeability of at least two rock samples
The least square coefficient of value, as the normalizing parameter of the permeability of rock sample, and is stored.
In force, the default normalizing parameter acquisition algorithm in step 3 can be arranged to least square method, most
The representation formula of small square law can be Y=aX+b, wherein, a and b are properly termed as least square coefficient, can oozing rock sample
The calculated value of saturating rate is used as X, the measured value of the permeability of rock sample as Y, by the measured value of the permeability of above-mentioned multiple rock samples with
The calculated value of the permeability of multiple rock samples, substitute into representation formula, least square coefficient a, b numerical value can be calculated, can
Using the normalizing parameter by a, b numerical value as the permeability of rock sample, and by normalizing parameter storage in the terminal.
Based on the related data in table 1, the normalizing parameter of the permeability of rock sample can be calculated by said process,
A=1.2709, b=0 can be obtained by calculating.As shown in Fig. 2 using the calculated value of the permeability of rock sample as abscissa X, rock
The measured value of the permeability of sample represents y=0.9578x as ordinate Y, straight line, it can be seen that rock sample of the embodiment of the present invention
The calculated value of permeability and the measured value of the permeability of rock sample are highly fitted, and the two correlation is good, square R of coefficient correlation2=
0.9272, also very little, average relative error are 24% or so to the permeability mean error asked for, and show the method using the present invention
The permeability and the actual value degree of agreement of the permeability of rock sample asked for are very high, demonstrate the correctness of the method for the present invention and fit
The property used.
Below in conjunction with embodiment, the handling process shown in Fig. 1 is described in detail, content can be as
Under：
Step 101, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained.
Wherein, target rock sample is the rock sample in the above-mentioned different zones for having measured normalizing parameter.
In force, can be on the ground of the position where oil-gas reservoir when needing to measure the permeability of rock in certain region
One or more rock is taken out in layer as target rock sample, then by correlation test, measure target rock sample effecive porosity,
Irreducible water saturation and median grain diameter, detailed process may refer to above-mentioned related content, will not be repeated here.
Step 102, according to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock pore
Road tortuosity parameter, obtain the calculated value of the permeability of target rock sample.
In force, the method for calculating permeability can be pre-set, then can utilize the active porosity of target rock sample
Degree, irreducible water are full, degree and median grain diameter and default rock duct tortuosity parameter, pass through the computational methods pre-set, meter
The permeability of target rock sample is calculated, so as to obtain the calculated value of the permeability of target rock sample.
Alternatively, the processing mode of above-mentioned steps 102 can be with varied, a kind of optional processing mode presented below,
Herein below can be included：According to the effecive porosity of target rock sample, irreducible water saturation and median grain diameter and default rock
Duct tortuosity parameter, uses formulaThe calculated value of the permeability of target rock sample is calculated；Its
In, φeFor the effecive porosity of target rock sample, SwbFor the irreducible water saturation of target rock sample, MdIn granularity for target rock sample
Value, τ are rock duct tortuosity parameter, KaFor the calculated value of the permeability of target rock sample.
Above-mentioned processing mode may refer to above-mentioned related content and perform, and will not be repeated here.
Step 103, according to the standardization of the calculated value of the permeability of target rock sample and the permeability of the rock sample prestored
Parameter, obtain the standard value of the permeability of target rock sample, the permeability as target rock sample.
In force, it may be determined that the region belonging to target rock sample, by the area identification in the region determined, in terminal
Searched in the area identification of middle preservation, when finding the area identification, determine the permeability of rock sample corresponding to the area identification
Normalizing parameter, then the normalizing parameter of the calculated value of the permeability of target rock sample and the permeability of rock sample is passed through default
Algorithm is calculated, and obtains the standard value of the permeability of target rock sample, permeability that can be using the standard value as target rock sample.
Alternatively, the processing mode of above-mentioned steps 103 can be with varied, a kind of optional processing mode presented below,
Herein below can be included：According to the calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, it is calculated
The standard value of the permeability of target rock sample, the permeability as target rock sample；Wherein, KaFor the calculating of the permeability of target rock sample
Value, a, b are the normalizing parameter of the permeability of rock sample, and K is the standard value of the permeability of target rock sample.
In force, the calculated value and the normalizing parameter prestored can be updated to formula K=aKaEnter in+b
Row calculates, standard value that can be using result of calculation as the permeability of target rock sample, wherein, KaFor the permeability of target rock sample
Calculated value, K are the standard value of the permeability of target rock sample.
Present invention could apply to the permeability of rock in muddy ore, particularly low-porosity muddy ore
Calculating.Apply and be restricted and complicated mud in complicated muddy ore instant invention overcomes existing calculation of permeability
Matter sandstone reservoir permeability accurately estimates the problem of difficulty is big.Also it is that implementation reservoir productivity is pre- in well log interpretation evaluation procedure simultaneously
Survey is laid a good foundation.
In the embodiment of the present invention, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained, according to mesh
Effecive porosity, irreducible water saturation, median grain diameter and the default rock duct tortuosity parameter of rock sample are marked, obtains target rock
The calculated value of the permeability of sample, according to the calculated value of the permeability of target rock sample and the standard of the permeability of the rock sample prestored
Change parameter, obtain the standard value of the permeability of target rock sample, as the permeability of target rock sample, so, fully taking into account
In the case that effect porosity, irreducible water saturation and median grain diameter influence to caused by the permeability of rock, pass through above-mentioned parameter
Induction and conclusion goes out to calculate the formula of the permeability of rock, overcomes existing calculation of permeability in complicated muddy ore
The problem of difficulty is big is accurately estimated with complicated muddy ore permeability using being restricted, so as to improve permeability
Computational accuracy.
Embodiment three
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of acquisition device of argillaceous sandstone permeability,
As shown in figure 3, the device includes：
First acquisition module 310, for obtaining the effecive porosity, irreducible water saturation and median grain diameter of target rock sample；
Second acquisition module 320, for the effecive porosity according to target rock sample, irreducible water saturation, median grain diameter and
Default rock duct tortuosity parameter, obtain the calculated value of the permeability of target rock sample；
3rd acquisition module 330, for the calculated value of the permeability according to target rock sample and oozing for the rock sample that prestores
The normalizing parameter of saturating rate, obtain the standard value of the permeability of target rock sample, the permeability as target rock sample.
Alternatively, the device also includes memory module, is used for：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
It is circuitous according to the effecive porosity of at least two rock samples, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, obtain the calculated value of the permeability of at least two rock samples；
The measured value of the permeability of at least two rock samples measured in the Physical Property Analysis experiment of rock sample is obtained, according at least
The measured value of the permeability of two rock samples, at least two rock samples permeability calculated value and default normalizing parameter obtain calculate
Method, obtains the normalizing parameter of the permeability of rock sample, and is stored.
Alternatively, memory module, it is used for：
According to the measured value of the permeability of at least two rock samples, the calculated value of the permeability of at least two rock samples and a most young waiter in a wineshop or an inn
Multiplication, determine the least square of the measured value of the permeability of at least two rock samples and the calculated value of the permeability of at least two rock samples
Coefficient, as the normalizing parameter of the permeability of rock sample, and stored.
Alternatively, the second acquisition module 320, is used for：
According to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, use formulaThe calculated value of the permeability of target rock sample is calculated；Wherein, φeFor mesh
Mark the effecive porosity of rock sample, SwbFor the irreducible water saturation of target rock sample, MdFor the median grain diameter of target rock sample, τ is rock
Duct tortuosity parameter, KaFor the calculated value of the permeability of target rock sample.
Alternatively, the 3rd acquisition module 330, it is used for：
According to calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, target rock sample is calculated
The standard value of permeability, the permeability as target rock sample；Wherein, KaFor the calculated value of the permeability of target rock sample, a, b are rock
The normalizing parameter of the permeability of sample, K are the standard value of the permeability of target rock sample.
In the embodiment of the present invention, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained, according to mesh
Effecive porosity, irreducible water saturation, median grain diameter and the default rock duct tortuosity parameter of rock sample are marked, obtains target rock
The calculated value of the permeability of sample, according to the calculated value of the permeability of target rock sample and the standard of the permeability of the rock sample prestored
Change parameter, obtain the standard value of the permeability of target rock sample, as the permeability of target rock sample, so, fully taking into account
In the case that effect porosity, irreducible water saturation and median grain diameter influence to caused by the permeability of rock, pass through above-mentioned parameter
Induction and conclusion goes out to calculate the formula of the permeability of rock, overcomes existing calculation of permeability in complicated muddy ore
The problem of difficulty is big is accurately estimated with complicated muddy ore permeability using being restricted, so as to improve permeability
Computational accuracy.
It should be noted that：The acquisition device for the argillaceous sandstone permeability that above-described embodiment provides oozes in acquisition argillaceous sandstone
, can be as needed and by above-mentioned work(only with the division progress of above-mentioned each functional module for example, in practical application during saturating rate
It can distribute and be completed by different functional modules, i.e., the internal structure of terminal is divided into different functional modules, more than completion
The all or part of function of description.In addition, the acquisition device for the argillaceous sandstone permeability that above-described embodiment provides and shale sand
The acquisition methods embodiment of rock permeability belongs to same design, and its specific implementation process refers to embodiment of the method, no longer superfluous here
State.
Example IV
Fig. 4 is refer to, it illustrates the structural representation of the terminal involved by the embodiment of the present invention, the terminal can be used for
The acquisition methods of argillaceous sandstone permeability provided in above-described embodiment are provided.Specifically：
Terminal 800 can include following one or more assemblies：Processing component 802, memory 804, power supply module 806,
Multimedia groupware 808, audio-frequency assembly 810, the interface 812 of input/output (I/O), sensor cluster 814, and communication component
816。
Processing component 802 generally controls the integrated operation of terminal 800, is such as communicated with display, call, data, phase
The operation that machine operates and record operation is associated.Processing component 802 can refer to including one or more processors 820 to perform
Order, to complete all or part of step of above-mentioned method.In addition, processing component 802 can include one or more modules, just
Interaction between processing component 802 and other assemblies.For example, processing component 802 can include multi-media module, it is more to facilitate
Interaction between media component 808 and processing component 802.
Memory 804 is configured as storing various types of data to support the operation in terminal 800.These data are shown
Example includes the instruction of any application program or method for being operated in terminal 800, contact data, telephone book data, disappears
Breath, picture, video etc..Memory 804 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) are erasable to compile
Journey read-only storage (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 806 provides electric power for the various assemblies of terminal 800.Power supply module 806 can include power management system
System, one or more power supplys, and other components associated with generating, managing and distributing electric power for terminal 800.
Multimedia groupware 808 is included in the screen of one output interface of offer between the terminal 800 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch sensings
Device is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or sliding action
Border, but also detect and touched or the related duration and pressure of slide with described.In certain embodiments, more matchmakers
Body component 808 includes a front camera and/or rear camera.When terminal 800 is in operator scheme, such as screening-mode or
During video mode, front camera and/or rear camera can receive outside multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio-frequency assembly 810 is configured as output and/or input audio signal.For example, audio-frequency assembly 810 includes a Mike
Wind (MIC), when terminal 800 is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone by with
It is set to reception external audio signal.The audio signal received can be further stored in memory 804 or via communication set
Part 816 is sent.In certain embodiments, audio-frequency assembly 810 also includes a loudspeaker, for exports audio signal.
I/O interfaces 812 provide interface between processing component 802 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 814 includes one or more sensors, and the state for providing various aspects for terminal 800 is commented
Estimate.For example, sensor cluster 814 can detect opening/closed mode of terminal 800, and the relative positioning of component, for example, it is described
Component is the display and keypad of terminal 800, and sensor cluster 814 can be with 800 1 components of detection terminal 800 or terminal
Position change, the existence or non-existence that user contacts with terminal 800, the orientation of terminal 800 or acceleration/deceleration and terminal 800
Temperature change.Sensor cluster 814 can include proximity transducer, be configured to detect in no any physical contact
The presence of neighbouring object.Sensor cluster 814 can also include optical sensor, such as CMOS or ccd image sensor, for into
As being used in application.In certain embodiments, the sensor cluster 814 can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 816 is configured to facilitate the communication of wired or wireless way between terminal 800 and other equipment.Terminal
800 can access the wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.In an exemplary implementation
In example, communication component 816 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 816 also includes near-field communication (NFC) module, to promote junction service.Example
Such as, in NFC module radio frequency identification (RFID) technology can be based on, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, terminal 800 can be believed by one or more application specific integrated circuits (ASIC), numeral
Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for performing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 804 of instruction, above-mentioned instruction can be performed to complete the above method by the processor 820 of terminal 800.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is held by the processor of terminal
During row so that terminal is able to carry out a kind of acquisition methods of argillaceous sandstone permeability, and methods described includes：
Obtain effecive porosity, irreducible water saturation and the median grain diameter of target rock sample；
According to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, obtain the calculated value of the permeability of target rock sample；
According to the calculated value of the permeability of target rock sample and the normalizing parameter of the permeability of the rock sample prestored, obtain
The standard value of the permeability of target rock sample, the permeability as target rock sample.
Alternatively, this method also includes：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
It is circuitous according to the effecive porosity of at least two rock samples, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, obtain the calculated value of the permeability of at least two rock samples；
The measured value of the permeability of at least two rock samples measured in the Physical Property Analysis experiment of rock sample is obtained, according at least
The measured value of the permeability of two rock samples, at least two rock samples permeability calculated value and default normalizing parameter obtain calculate
Method, obtains the normalizing parameter of the permeability of rock sample, and is stored.
Alternatively, according to the measured value of the permeability of at least two rock samples, the calculated value of the permeability of at least two rock samples
With default normalizing parameter acquisition algorithm, the normalizing parameter of the permeability of rock sample is obtained, and is stored, including：
According to the measured value of the permeability of at least two rock samples, the calculated value of the permeability of at least two rock samples and a most young waiter in a wineshop or an inn
Multiplication, determine the least square of the measured value of the permeability of at least two rock samples and the calculated value of the permeability of at least two rock samples
Coefficient, as the normalizing parameter of the permeability of rock sample, and stored.
Alternatively, according to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock duct
Tortuosity parameter, the calculated value of the permeability of target rock sample is obtained, including：
According to the effecive porosity of target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, use formulaThe calculated value of the permeability of target rock sample is calculated；Wherein, φeFor mesh
Mark the effecive porosity of rock sample, SwbFor the irreducible water saturation of target rock sample, MdFor the median grain diameter of target rock sample, τ is rock
Duct tortuosity parameter, KaFor the calculated value of the permeability of target rock sample.
Alternatively, joined according to the standardization of the calculated value of the permeability of target rock sample and the permeability of the rock sample prestored
Number, the standard value of the permeability of target rock sample is obtained, as the permeability of target rock sample, including：
According to calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, target rock sample is calculated
The standard value of permeability, the permeability as target rock sample；Wherein, KaFor the calculated value of the permeability of target rock sample, a, b are rock
The normalizing parameter of the permeability of sample, K are the standard value of the permeability of target rock sample.
In the embodiment of the present invention, effecive porosity, irreducible water saturation and the median grain diameter of target rock sample are obtained, according to mesh
Effecive porosity, irreducible water saturation, median grain diameter and the default rock duct tortuosity parameter of rock sample are marked, obtains target rock
The calculated value of the permeability of sample, according to the calculated value of the permeability of target rock sample and the standard of the permeability of the rock sample prestored
Change parameter, obtain the standard value of the permeability of target rock sample, as the permeability of target rock sample, so, fully taking into account
In the case that effect porosity, irreducible water saturation and median grain diameter influence to caused by the permeability of rock, pass through above-mentioned parameter
Induction and conclusion goes out to calculate the formula of the permeability of rock, overcomes existing calculation of permeability in complicated muddy ore
The problem of difficulty is big is accurately estimated with complicated muddy ore permeability using being restricted, so as to improve permeability
Computational accuracy.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of acquisition methods of argillaceous sandstone permeability, it is characterised in that methods described includes：
Obtain effecive porosity, irreducible water saturation and the median grain diameter of target rock sample；
According to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, obtain the calculated value of the permeability of the target rock sample；
According to the calculated value of the permeability of the target rock sample and the normalizing parameter of the permeability of the rock sample prestored, obtain
The standard value of the permeability of the target rock sample, the permeability as the target rock sample.
2. according to the method for claim 1, it is characterised in that methods described also includes：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
It is circuitous according to the effecive porosity of at least two rock sample, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, obtain the calculated value of the permeability of at least two rock sample；
The measured value of the permeability of at least two rock sample measured in the Physical Property Analysis experiment of rock sample is obtained, according to described
The measured value of the permeability of at least two rock samples, at least two rock sample permeability calculated value and it is default standardization ginseng
Number acquisition algorithm, obtains the normalizing parameter of the permeability of rock sample, and stored.
3. according to the method for claim 2, it is characterised in that the survey of the permeability according at least two rock sample
Value, at least two rock sample permeability calculated value and default normalizing parameter acquisition algorithm, obtain oozing for rock sample
The normalizing parameter of saturating rate, and stored, including：
According to the measured value of the permeability of at least two rock sample, the calculated value of the permeability of at least two rock sample and most
Small square law, determine the calculating of the measured value of the permeability of at least two rock sample and the permeability of at least two rock sample
The least square coefficient of value, as the normalizing parameter of the permeability of rock sample, and is stored.
4. according to the method for claim 1, it is characterised in that the effecive porosity according to the target rock sample, beam
Water saturation, median grain diameter and default rock duct tortuosity parameter are tied up, obtains the calculating of the permeability of the target rock sample
Value, including：
According to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, use formulaThe calculated value of the permeability of the target rock sample is calculated；Wherein, φe
For the effecive porosity of the target rock sample, SwbFor the irreducible water saturation of the target rock sample, MdFor the target rock sample
Median grain diameter, τ are rock duct tortuosity parameter, KaFor the calculated value of the permeability of the target rock sample.
5. according to the method for claim 1, it is characterised in that the calculated value of the permeability according to the target rock sample
With the normalizing parameter of the permeability of rock sample prestored, the standard value of the permeability of the target rock sample is obtained, as institute
The permeability of target rock sample is stated, including：
According to the calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, the target rock sample is calculated
Permeability standard value, the permeability as the target rock sample；Wherein, KaFor the calculating of the permeability of the target rock sample
Value, a, b are the normalizing parameter of the permeability of rock sample, and K is the standard value of the permeability of the target rock sample.
6. a kind of acquisition device of argillaceous sandstone permeability, it is characterised in that described device includes：
First acquisition module, for obtaining the effecive porosity, irreducible water saturation and median grain diameter of target rock sample；
Second acquisition module, for the effecive porosity according to the target rock sample, irreducible water saturation, median grain diameter and preset
Rock duct tortuosity parameter, obtain the calculated value of the permeability of the target rock sample；
3rd acquisition module, for the calculated value of the permeability according to the target rock sample and the permeability of the rock sample prestored
Normalizing parameter, obtain the standard value of the permeability of the target rock sample, the permeability as the target rock sample.
7. device according to claim 6, it is characterised in that described device also includes memory module, is used for：
Obtain the effecive porosity, irreducible water saturation and median grain diameter of at least two rock samples；
It is circuitous according to the effecive porosity of at least two rock sample, irreducible water saturation, median grain diameter and default rock duct
Curvedness parameters, obtain the calculated value of the permeability of at least two rock sample；
The measured value of the permeability of at least two rock sample measured in the Physical Property Analysis experiment of rock sample is obtained, according to described
The measured value of the permeability of at least two rock samples, at least two rock sample permeability calculated value and it is default standardization ginseng
Number acquisition algorithm, obtains the normalizing parameter of the permeability of rock sample, and stored.
8. device according to claim 7, it is characterised in that the memory module, be used for：
According to the measured value of the permeability of at least two rock sample, the calculated value of the permeability of at least two rock sample and most
Small square law, determine the calculating of the measured value of the permeability of at least two rock sample and the permeability of at least two rock sample
The least square coefficient of value, as the normalizing parameter of the permeability of rock sample, and is stored.
9. device according to claim 6, it is characterised in that second acquisition module, be used for：
According to the effecive porosity of the target rock sample, irreducible water saturation, median grain diameter and default rock duct tortuosity
Parameter, use formulaThe calculated value of the permeability of the target rock sample is calculated；Wherein, φe
For the effecive porosity of the target rock sample, SwbFor the irreducible water saturation of the target rock sample, MdFor the target rock sample
Median grain diameter, τ are rock duct tortuosity parameter, KaFor the calculated value of the permeability of the target rock sample.
10. device according to claim 6, it is characterised in that the 3rd acquisition module, be used for：
According to the calculated value and the normalizing parameter prestored, formula K=aK is useda+ b, the target rock sample is calculated
Permeability standard value, the permeability as the target rock sample；Wherein, KaFor the calculating of the permeability of the target rock sample
Value, a, b are the normalizing parameter of the permeability of rock sample, and K is the standard value of the permeability of the target rock sample.
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| CN107917865B (en) * | 2016-10-11 | 2020-01-31 | 中国石油化工股份有限公司 | compact sandstone reservoir multi-parameter permeability prediction method |
| CN108802073B (en) * | 2017-05-05 | 2021-03-12 | 中国石油化工股份有限公司 | Rock electrical parameter obtaining method and device based on digital rock core |
| CN107366534B (en) * | 2017-08-10 | 2020-08-11 | 中国石油天然气股份有限公司 | Method and device for determining coarsening permeability |
| CN108982320B (en) * | 2018-07-10 | 2021-03-02 | 中国海洋石油集团有限公司 | Method for calculating permeability of reservoir with complex pore structure by using particle size parameters |
| CN109323970B (en) * | 2018-11-30 | 2021-08-20 | 中国石油大港油田勘探开发研究院 | Method for evaluating vertical conductance performance of movable section |
| CN110160927B (en) * | 2019-05-16 | 2021-12-10 | 中海油田服务股份有限公司 | Method and device for determining saturation of irreducible water |
| CN110376113A (en) * | 2019-07-29 | 2019-10-25 | 中国地质大学（北京） | A kind of evaluation coal seam reservoirs water blocking damage method and water lock release liquid |
| CN110376112A (en) * | 2019-07-29 | 2019-10-25 | 中国地质大学（北京） | A method of evaluating fine and close gas reservoir water blocking damage degree |
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