CN116591673A - Construction method of water flooding curve plate under different oil-water viscosity ratio conditions based on phase permeation - Google Patents

Construction method of water flooding curve plate under different oil-water viscosity ratio conditions based on phase permeation Download PDF

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CN116591673A
CN116591673A CN202310742273.2A CN202310742273A CN116591673A CN 116591673 A CN116591673 A CN 116591673A CN 202310742273 A CN202310742273 A CN 202310742273A CN 116591673 A CN116591673 A CN 116591673A
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water
water flooding
curve
oil
flooding
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张利军
焦钰嘉
杨仁锋
张文博
赵林
李南
吴峻川
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Beijing Research Center of CNOOC China Ltd
CNOOC China Ltd
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CNOOC China Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20Displacing by water
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/20Computer models or simulations, e.g. for reservoirs under production, drill bits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/40Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping

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  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
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  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention relates to a construction method, a device, a medium and equipment of a water drive curve plate under the condition of different oil-water viscosity ratios based on phase permeation, wherein the method comprises the following steps: establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on phase permeation; giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model; determining a water flooding curve 'C' value improvement model according to the relation model; and establishing a water flooding curve plate according to the water flooding curve C value model and the relation model of the corrected water content and the extraction degree, wherein the water flooding plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising law of a water flooding field or different oil-water viscosity ratios. The water flooding recovery ratio prediction plate is accurate and reliable under the condition of different oil-water viscosity ratios based on the phase permeation, can be used for predicting water flooding geological reserves and recoverable reserves, evaluating the water flooding development effect, and is also suitable for predicting the initial water content rising rule of a water flooding field.

Description

Construction method of water flooding curve plate under different oil-water viscosity ratio conditions based on phase permeation
Technical Field
The invention relates to a construction method of a water flooding curve plate under the condition of different oil-water viscosity ratios based on phase permeation, and belongs to the field of petroleum exploration.
Background
Tong Shi curve plate is widely applied to the geological reserves of water-flooding fields and the evaluation of the development effect of water-flooding reservoirs, and is one of the main methods for calibrating and developing the later-period recoverable reserves of water-flooding oil fields in China.
When the classical Tong Shi curve 7.5B is used for calculating the water flooding geological reserves of the oil field, the situation that the water flooding geological reserves are large in difference from the geological reserves often occurs in a large number of actual oil fields, the calculated water flooding geological reserves are sometimes smaller than the geological reserves, and the situation that the water flooding geological reserves are larger than the geological reserves occurs in actual application is more, so that great difficulty is brought to the calibration of recovery ratio. The main reason is that the application range is limited, and the applicability is strong when the oil-water viscosity ratio is smaller than 10. For conventional heavy oil reservoirs, the oil-water viscosity is relatively high, so that how to reasonably determine the water flooding recoverable reserves of the reservoirs by utilizing the water flooding curve is important.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a construction method of a water flooding curve graph plate under the condition of different oil-water viscosity ratios based on the phase permeability, which starts from a linear equation of a water flooding two-phase flow, determines a new method for the recoverable reserves of a water flooding oilfield based on the phase permeability data under the different oil-water viscosity ratios, provides a basis for calibrating the recoverable reserves of the water flooding oilfield, and simultaneously provides a guiding basis for predicting the initial water-containing rising law of the water flooding oilfield.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the invention provides a construction method of a water flooding curve plate under the condition of different oil-water viscosity ratios based on phase permeation, which is characterized by comprising the following steps:
establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on phase permeation;
giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
determining a water flooding curve 'C' value improvement model according to the corrected relation model;
and establishing a water flooding curve plate according to the water flooding curve C value model and the relation model of the corrected water content and the extraction degree, wherein the water flooding plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising law of a water flooding field or different oil-water viscosity ratios.
Further, the relation model of the water content and the extraction degree under different oil-water viscosity ratios based on the phase permeation is as shown in the formula (1):
in the formula (1), f w Is the water content of the oil field; m, b is regression value based on the phase permeation data; s is S oi F is the initial oil saturation; r is the extraction degree of different stages, f; e (E) R F, calibrating recovery ratio;
the relation model of the corrected water content and the extraction degree is as shown in the formula (2):
in the formula (2), the amino acid sequence of the compound,c is the value of the water flooding curve 'C'.
Further, the improved model of the water flooding curve 'C' value is shown as a formula (3):
wherein: e (E) v98% The water drive sweep coefficient is S when the water content is 98% oi For the initial oil saturation, m and b are regression values based on the phase permeability data, and the magnitude of the value of the water drive curve 'C' is determined by the original oil saturation of the oil reservoir, regression constants m and b of the phase permeability curve and sweep coefficients.
Further, the b-value determination model is:
wherein mu is ow S is the viscosity ratio of oil and water w Is water saturation, S or For remaining oil saturation, f o Is the oil content of the corresponding produced fluid under different water saturation.
Further, the m-value determination model is:
wherein K is ro K is the relative permeability of oil phase rw For the relative permeability of the aqueous phase, a is the regression intercept of the curve in the semilogarithmic scale, m is the regression slope of the curve in the semilogarithmic scale, S w Is water saturation
Further, the water flooding curve plate comprises a water flooding field initial water content rising law prediction plate, and the initial water content rising law prediction plate is established according to the water flooding curve 'C' value model and the corrected water content and extraction degree relation model, specifically comprising the following steps:
different water flooding curve 'C' values are obtained based on different phase permeability data in the initial stage of the water flooding field, water flooding curve plates with different C values are obtained based on the formula (1) according to different water flooding curve 'C' values, and the water flooding curve plates with different C values are used for predicting the water content rising law in the initial stage of the water flooding field.
Further, the water flooding curve plate further comprises a water flooding line prediction plate with different recovery ratios in a middle-high water content period, and the water flooding curve prediction plate with different recovery ratios in the high water content period is established according to the water flooding curve 'C' value model and the relation model of the corrected water content and the recovery degree, specifically comprising the following steps:
and obtaining a determined water flooding curve 'C' value based on the determined permeability data of the middle and high water content period, and obtaining water flooding curve plates with different recovery ratios of the middle and high water content period based on the formula (1) according to the determined water flooding curve 'C' value, wherein the water flooding curve plates with different recovery ratios of the middle and high water content period are used for calibrating the recoverable reserves of an oil field and the water flooding recovery ratio of the oil field.
In a second aspect, the invention also provides a construction device of the water flooding curve plate under the condition of different oil-water viscosity ratios based on the phase permeation, which comprises the following steps:
the first processing unit is used for establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on the phase permeation;
a second processing unit for giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
the third processing unit is used for determining a water flooding curve 'C' value improvement model according to the relation model;
and the fourth processing unit is used for establishing a water flooding curve plate according to the water flooding curve C value model and the relation model of the corrected water content and the extraction degree, wherein the water flooding plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising rules of water flooding fields or different oil-water viscosity ratios.
In a third aspect, the present invention further provides a computer readable storage medium, storing computer instructions, where the computer instructions are configured to implement the method for constructing a water flooding graph plate under different oil-water viscosity ratios based on the phase permeation when executed by a processor.
In a fourth aspect, the present invention further provides a computer device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the method for constructing a water flooding graph plate under different oil-water viscosity ratios based on the phase permeation when executing the computer program.
Due to the adoption of the technical scheme, the invention has the following advantages: the water flooding recovery ratio prediction template based on different oil-water viscosity ratios of the phase permeation is accurate and reliable, can be used for predicting water flooding geological reserves and recoverable reserves, evaluating the water flooding development effect, and is also suitable for predicting the initial water content rising rule of a water flooding field.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like parts are designated with like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a water drive curve prediction graph of various C values;
FIG. 2 is a water flooding line prediction graph of different recovery rates in the medium and high water cut periods;
FIG. 3 (a) is a graph regression of m values for a heavy oil field based on an phase-to-phase regression; (b) Is the curve regression of b value based on the phase permeability regression with a certain thick oil field;
fig. 4 is a graph of a new water drive curve prediction for the heavy oil field of fig. 3.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The embodiment of the invention provides a construction method of a water flooding curve plate under the condition of different oil-water viscosity ratios based on phase permeability, wherein the water flooding curve plate comprises a water flooding line prediction plate for water flooding field initial water content rising and a water flooding line prediction plate for different recovery ratios in a medium-high water content period, and the water flooding field initial water content rising rule prediction plate is used for water flooding field initial water content rising rule prediction. The water drive curve plate with different recovery ratios in the middle and high water-cut periods is used for calibrating the recoverable reserves of the oil field and the water drive recovery ratio of the oil field.
As shown in FIG. 1, the implementation of the invention provides a construction method of a water flooding curve plate under the condition of different oil-water viscosity ratios based on phase permeation, which comprises the following steps:
s1, establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on phase permeation;
based on the data of the phase permeation experiment, determining simultaneous equations of the accumulated oil and the accumulated water in the water displacement fields with different oil-water viscosity ratios, deducing and establishing a relation equation of the water content and the extraction degree:
wherein: f (f) w Is the water content of the oil field; m, b is regression value based on the phase permeation data; s is S oi F is the initial oil saturation; r is the extraction degree of different stages, f; e (E) R F for calibrating recovery ratio. The method is suitable for predicting the water flooding geological reserves and the recoverable reserves under the conditions of different oil-water viscosity ratios, evaluating the water flooding development effect and simultaneously is also suitable for predicting the initial water content rising rule of the water flooding field.
S2, giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
the relation model of the corrected water content and the extraction degree is as shown in the formula (2):
in the formula (2), the amino acid sequence of the compound,c is the value of the water flooding curve 'C'.
Wherein: e (E) v98% Water drive sweep coefficient at 98% water. The value of the water flooding curve 'C' determined based on the phase permeability data is determined by the original oil saturation of the oil reservoir, regression constants m and b of the phase permeability curve and sweep coefficients.
S3, determining a water flooding curve 'C' value improvement model according to the corrected relation model;
the improved model of the 'C' value of the water flooding curve is shown as a formula (3):
wherein: e (E) v98% The water drive sweep coefficient is S when the water content is 98% oi For the initial oil saturation, m and b are regression values based on the phase permeability data, and the magnitude of the value of the water drive curve 'C' is determined by the original oil saturation of the oil reservoir, regression constants m and b of the phase permeability curve and sweep coefficients.
Research shows that the oil content and the flowable oil saturation are in a straight line relationship in a double-logarithmic coordinate system, and the oil-water viscosity ratio mu is increased ow The intercept of the line becomes smaller and the ratio mu of the intercept to the oil-water viscosity becomes smaller ow Inversely proportional, the slope of the line is the b value, and the b value determination model is:
wherein mu is ow S is the viscosity ratio of oil and water w Is water saturation, S or For remaining oil saturation, f o Is the oil content of the corresponding produced fluid under different water saturation.
According to experimental results, the relative permeability ratio and the water saturation of most rocks show an exponential relationship, and the relationship can be used for determining m values under different oil viscosity ratios, wherein the m value determination model is as follows:
wherein K is ro K is the relative permeability of oil phase rw For the relative permeability of the aqueous phase, a is the regression intercept of the curve in the semilogarithmic scale, m is the regression slope of the curve in the semilogarithmic scale, S w Is water saturation
And S4, establishing a water flooding curve plate according to the water flooding curve C value model and the relation model of the corrected water content and the extraction degree, wherein the water flooding curve plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising law prediction or different oil-water viscosity ratios of a water flooding field.
As shown in fig. 1, the water flooding curve graph includes a water flooding field initial water content rising law prediction graph, and the initial water content rising law prediction graph is established according to the water flooding curve "C" value model and the corrected water content and extraction degree relation model, specifically:
different water flooding curve 'C' values are obtained based on different phase permeability data in the initial stage of the water flooding field, water flooding curve plates with different C values are obtained based on the formula (1) according to different water flooding curve 'C' values, and the water flooding curve plates with different C values are used for predicting the water content rising law in the initial stage of the water flooding field.
As shown in fig. 2, the water flooding curve graph plate further includes a water flooding line prediction graph plate with different recovery ratios in the middle and high water content periods, and the water flooding curve prediction graph plate with different recovery ratios in the high water content period is built according to the water flooding curve "C" value model and the relation model of the corrected water content and the recovery degree, specifically:
and obtaining a determined water flooding curve 'C' value based on the determined permeability data of the middle and high water content period, and obtaining water flooding curve plates with different recovery ratios of the middle and high water content period based on the formula (1) according to the determined water flooding curve 'C' value, wherein the water flooding curve plates with different recovery ratios of the middle and high water content period are used for calibrating the recoverable reserves of an oil field and the water flooding recovery ratio of the oil field.
Specific applications are exemplified as follows:
according to the research content of the invention, the recoverable reserve calibration research is carried out on the largest heavy oil reservoir of the developed oil field in a certain sea area. Taking the G region of the oil field as an example, the application effect of the water flooding recovery ratio prediction plate under the condition of different oil-water viscosity ratios based on the phase permeability is described. Analysis of the measured phase permeability curve of this region gave m=19.07, b= 4.685, as shown in fig. 3. The initial oil saturation of the G block is 0.711, the G block belongs to a medium-high permeability reservoir, the sweep coefficient value of 98% of water content is 0.85, and the C value is 6.363 calculated by a new formula. And (3) establishing a water flooding curve graph plate by using the new C value, wherein the calibrated recovery ratio is 35% as shown in fig. 4, and the water flooding recovery ratio of the area is predicted to be 34.4% by a digital-analog method, so that the reliability of the method and the graph plate is verified.
The embodiment of the invention also provides a construction device of the water-flooding curve plate under the condition of different oil-water viscosity ratios based on the phase permeation, which comprises the following steps:
the first processing unit is used for establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on the phase permeation;
a second processing unit for giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
the third processing unit is used for determining a water flooding curve 'C' value improvement model according to the corrected relation model;
and the fourth processing unit is used for establishing a water flooding curve plate according to the water flooding curve C value model and the relation model of the corrected water content and the extraction degree, wherein the water flooding plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising rules of water flooding fields or different oil-water viscosity ratios.
The embodiment of the invention also provides a computer readable storage medium which stores computer instructions for realizing the construction method of the water flooding curve graph plate under the condition of different oil-water viscosity ratios based on the phase penetration when the computer instructions are executed by a processor.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, and is characterized in that the computer program is executed by the processor to realize the construction method of the water flooding graph plate under the condition of different oil-water viscosity ratios based on the phase penetration.
Starting from a linear equation of the water flooding two-phase flow, the new method for determining the recoverable reserves of the water flooding oil field based on the phase permeability data under different oil-water viscosity ratios provides a basis for calibrating the recoverable reserves of the water flooding oil field, and simultaneously provides a guiding basis for predicting the initial water content rising law of the water flooding field.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The construction method of the water flooding curve plate based on the condition of different oil-water viscosity ratios of the phase permeation is characterized by comprising the following steps:
establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on phase permeation;
giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
determining a water flooding curve 'C' value improvement model according to the corrected relation model;
and establishing a water flooding curve plate according to the water flooding curve C value model and the corrected relation model of the water content and the extraction degree, wherein the water flooding curve plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising rules of a water flooding field or different oil-water viscosity ratios.
2. The construction method of the water flooding curve plate based on the different oil-water viscosity ratios of the phase permeation according to claim 1, wherein the relation model of the water content and the extraction degree based on the different oil-water viscosity ratios of the phase permeation is as shown in the following formula (1):
in the formula (1), f w Is the water content of the oil field; m, b is regression value based on the phase permeation data; s is S oi F is the initial oil saturation; r is the extraction degree of different stages, f; e (E) R F, calibrating recovery ratio;
the relation model of the corrected water content and the extraction degree is as shown in the formula (2):
in the formula (2), the amino acid sequence of the compound,c is the value of the water flooding curve 'C'.
3. The construction method of the water flooding curve plate under the condition of different oil-water viscosity ratios based on the phase permeation according to claim 2, wherein the improved model of the water flooding curve 'C' value is as shown in formula (3):
wherein: e (E) v98% The water drive sweep coefficient is S when the water content is 98% oi For initial oil saturation, m and b are regression values based on the phase permeability data, and the magnitude of the value of the water flooding curve 'C' is determined by the original oil content of the oil reservoirThe regression constants m, b and sweep coefficients of the oil saturation and the permeability curves are determined together.
4. The construction method of the water flooding curve plate based on the different oil-water viscosity ratios of the phase permeation according to claim 3, wherein the b value determination model is as follows:
wherein mu is ow S is the viscosity ratio of oil and water w Is water saturation, S or For remaining oil saturation, f o Is the oil content of the corresponding produced fluid under different water saturation.
5. The construction method of the water flooding curve plate based on the different oil-water viscosity ratios of the phase permeation according to claim 1, wherein the m value determination model is as follows:
wherein K is ro K is the relative permeability of oil phase rw For the relative permeability of the aqueous phase, a is the regression intercept of the curve in the semilogarithmic scale, m is the regression slope of the curve in the semilogarithmic scale, S w Is the water saturation.
6. The construction method of the water flooding curve plate under the condition of different oil-water viscosity ratios based on the phase permeability according to claim 2, wherein the water flooding curve plate comprises a rule prediction plate of initial water content rise of a water flooding field, and the rule prediction plate of initial water content rise is established according to the water flooding curve 'C' value model and the relation model of the corrected water content and the extraction degree, specifically:
different water flooding curve 'C' values are obtained based on different phase permeability data in the initial stage of the water flooding field, water flooding curve plates with different C values are obtained based on the formula (1) according to different water flooding curve 'C' values, and the water flooding curve plates with different C values are used for predicting the water content rising law in the initial stage of the water flooding field.
7. The construction method of the water flooding curve plate under the condition of different oil-water viscosity ratios based on the phase permeability according to claim 6, wherein the water flooding curve plate further comprises a water flooding line prediction plate with different recovery ratios in a medium-high water content period, and the water flooding curve prediction plate with different recovery ratios in the high water content period is constructed according to the water flooding curve 'C' value model and the relation model of the corrected water content and the recovery degree, specifically:
and obtaining a determined water flooding curve 'C' value based on the determined permeability data of the middle and high water content period, and obtaining water flooding curve plates with different recovery ratios of the middle and high water content period based on the formula (1) according to the determined water flooding curve 'C' value, wherein the water flooding curve plates with different recovery ratios of the middle and high water content period are used for calibrating the recoverable reserves of an oil field and the water flooding recovery ratio of the oil field.
8. The construction device of the water drive curve plate under the conditions of different oil-water viscosity ratios based on the phase permeation is characterized by comprising:
the first processing unit is used for establishing a relation model of water content and extraction degree under different oil-water viscosity ratios based on the phase permeation;
a second processing unit for giving a correction boundary condition of a relation model of the water content and the extraction degree, and correcting the relation model;
the third processing unit is used for determining a water flooding curve 'C' value improvement model according to the relation model;
and the fourth processing unit is used for establishing a water flooding curve plate according to the water flooding curve C value model and the corrected relation model of the water content and the extraction degree, wherein the water flooding plate is used for predicting water flooding geological reserves and recoverable reserves under the conditions of initial water content rising rules of a water flooding field or different oil-water viscosity ratios.
9. A computer readable storage medium storing computer instructions for implementing the construction method of the water flooding graph plate under the condition of different oil-water viscosity ratios based on the phase permeation according to any one of claims 1 to 7 when being executed by a processor.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method for constructing a water flooding graph plate based on different oil-water viscosity ratios of the phase-to-phase permeability according to any one of claims 1 to 7.
CN202310742273.2A 2023-06-21 2023-06-21 Construction method of water flooding curve plate under different oil-water viscosity ratio conditions based on phase permeation Pending CN116591673A (en)

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