CN111088969B

CN111088969B - Method and device for determining separate injection scheme of water injection well and storage medium

Info

Publication number: CN111088969B
Application number: CN201811238044.2A
Authority: CN
Inventors: 徐庆; 龙涛; 陈哲; 金四纯; 王曾莹; 阮杰; 章晓庆; 柯拥振; 庞道红; 张维轶; 李婧璇; 徐甜
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2018-10-23
Filing date: 2018-10-23
Publication date: 2022-03-29
Anticipated expiration: 2038-10-23
Also published as: CN111088969A

Abstract

The invention discloses a method and a device for determining a separate injection scheme of a water injection well and a storage medium, and belongs to the technical field of oil extraction engineering. The method comprises the following steps: acquiring a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer; determining the separate injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer; determining the difference of the dispensing coefficient of each dispensing scheme in a plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers, wherein each dispensing scheme is used for indicating that a plurality of water injection layers are divided into a plurality of dispensing segments for dispensing; and determining the dispensing scheme with the minimum dispensing coefficient level difference in the plurality of dispensing schemes as the target dispensing scheme. The invention improves the accuracy of dividing the separate injection segments and improves the subsequent separate layer water injection effect.

Description

Method and device for determining separate injection scheme of water injection well and storage medium

Technical Field

The invention relates to the technical field of oil extraction engineering, in particular to a method and a device for determining a separate injection scheme of a water injection well and a storage medium.

Background

When the development of the oil field enters the middle and later stages, the formation energy is attenuated continuously, and the difficulty of crude oil exploitation is increased due to the attenuation of the formation energy, so that crude oil is difficult to separate from the formation. In order to solve the problem, the energy of the stratum is supplemented by injecting water into the stratum. Because the energy difference between different strata is great, so different strata need different water injection volume to replenish its energy, consequently, often adopt the mode of water injection by layers to carry out the branch injection to a plurality of water injection layers that the water injection well corresponds.

At present, when a plurality of water injection layers corresponding to a water injection well are separately injected, the plurality of water injection layers are firstly divided into a plurality of separate injection sections, and then the plurality of separate injection sections are respectively injected with water at different injection amounts. When dividing the plurality of water injection layers into a plurality of injection sections, generally, at least two water injection layers having similar permeability among the plurality of water injection layers are artificially divided into one injection section, and each of the remaining water injection layers is individually divided into one injection section.

However, when the multiple water injection layers are divided into multiple dispensing segments according to the permeability of the multiple water injection layers, the energy of at least one water injection layer included in each of the divided dispensing segments may still be different greatly, that is, the accuracy of dividing the dispensing segments in the above manner is low, and thus the subsequent layered water injection effect is poor.

Disclosure of Invention

The embodiment of the invention provides a method and a device for determining a separate injection scheme of a water injection well and a storage medium, which can solve the problem of low accuracy of dividing separate injection segments in the related technology. The technical scheme is as follows:

according to a first aspect of embodiments of the present invention, there is provided a method for determining a dispensing scheme for a water injection well, the method comprising:

acquiring a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer;

determining the separate injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer;

determining a dispensing coefficient level difference of each dispensing scheme in a plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers, wherein each dispensing scheme is used for indicating that the plurality of dispensing layers are divided into a plurality of dispensing segments for dispensing;

and determining the dispensing scheme with the smallest dispensing coefficient level difference in the plurality of dispensing schemes as a target dispensing scheme.

Optionally, the first monolayer parameters include at least one of monolayer permeability, monolayer injection production start pressure differential, and monolayer kick-off thickness.

Optionally, the second monolayer parameter comprises at least one of a number of production wells, a production well jet thickness, a well spacing between the production wells and the water injection well, a production well fluid production volume, and a formation crude oil viscosity.

Optionally, the determining a water injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the production well communicated with each water injection layer includes:

acquiring the weight of the first single-layer parameter of each water injection layer and the weight of the second single-layer parameter of the oil production well communicated with each water injection layer;

and determining the separate injection coefficient of each water injection layer according to the first single-layer parameter and the weight of each water injection layer and the second single-layer parameter and the weight of the oil production well communicated with each water injection layer.

Optionally, the determining the injection coefficient of each water injection layer according to the first single-layer parameter and the weight thereof of each water injection layer and the second single-layer parameter and the weight thereof of the production well communicated with each water injection layer includes:

normalizing the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer to obtain the normalized first single-layer parameter of each water injection layer and the normalized second single-layer parameter of the oil production well communicated with each water injection layer;

multiplying the normalized first single-layer parameter of each water injection layer by the weight of the first single-layer parameter to obtain a first numerical value; multiplying the normalized second single-layer parameter of the oil production well communicated with each water injection layer by the weight of the normalized second single-layer parameter to obtain a second numerical value;

and adding the first numerical value and the second numerical value to obtain the dispensing coefficient of each water dispensing layer.

Optionally, each of the multiple dispensing segments indicated in each dispensing scenario includes at least one water injection layer of the multiple water injection layers, and when any dispensing segment of the multiple dispensing segments includes s water injection layers, a kth water injection layer of the s water injection layers is adjacent to a (k + 1) th water injection layer, s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s-1;

and the interlayer spacing between every two adjacent water injection layers in every two adjacent dispensing segments in the multiple dispensing segments indicated in each dispensing scheme is greater than the preset distance.

Optionally, the determining, according to the dispensing coefficient of each of the plurality of water injection layers, a dispensing coefficient level difference of each of a plurality of dispensing schemes of the water injection well includes:

determining the difference of the dispensing coefficient of each dispensing segment in the plurality of dispensing segments indicated in each dispensing scheme in the plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers;

and determining the largest dispensing coefficient level difference in the dispensing coefficient level differences of the plurality of dispensing segments indicated in each dispensing scenario as the dispensing coefficient level difference of each dispensing scenario.

Optionally, the determining, according to the dispensing coefficient of each of the plurality of water injection layers, a dispensing coefficient level difference of each of a plurality of dispensing segments indicated in each of a plurality of dispensing schemes of the water injection well includes:

for each of the multiple dispensing segments indicated in each of the multiple dispensing schemes of the water injection well, determining that the dispensing coefficient level difference of each dispensing segment is 1 when the number of water injection layers included in each dispensing segment is 1;

and when the number of the water injection layers included in each dispensing segment is greater than or equal to 2, dividing the largest dispensing coefficient of the dispensing coefficients of at least two water injection layers included in each dispensing segment by the smallest dispensing coefficient to obtain the dispensing coefficient level difference of each dispensing segment.

Optionally, after determining, as the target dispensing scenario, the dispensing scenario with the smallest dispensing coefficient difference among the plurality of dispensing scenarios, the method further includes:

when the difference of the dispensing coefficient of the target dispensing scheme is smaller than or equal to the difference threshold value, carrying out first marking on the target dispensing scheme;

and when the difference of the dispensing coefficient of the target dispensing scheme is larger than the difference threshold value, performing second marking on the target dispensing scheme.

Optionally, after determining a difference of a dispensing coefficient of each dispensing scheme of the multiple dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer of the multiple dispensing layers, the method further includes:

sequencing the multiple separate injection schemes of the water injection well according to the sequence that the separate injection coefficient level difference of the multiple separate injection schemes is from small to large;

and displaying the sequenced dispensing schemes in sequence.

and performing separate injection on a plurality of water injection layers corresponding to the water injection wells according to the target separate injection scheme.

According to a second aspect of embodiments of the present invention, there is provided a dispensing scenario determination apparatus for a water injection well, the apparatus comprising:

the acquisition module is used for acquiring a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer;

the first determining module is used for determining the separate injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer;

a second determining module, configured to determine, according to a dispensing coefficient of each water injection layer in the multiple water injection layers, a dispensing coefficient level difference of each dispensing scheme in multiple dispensing schemes of the water injection well, where each dispensing scheme is used to instruct to divide the multiple water injection layers into multiple dispensing segments for dispensing;

and a third determining module, configured to determine, as the target dispensing scenario, a dispensing scenario with a smallest dispensing coefficient difference among the plurality of dispensing scenarios.

Optionally, the second monolayer parameter comprises at least one of a number of production wells, a production well jet thickness, a well spacing between the production wells and the water injection well, a production well fluid production volume, and a formation crude oil viscosity. .

Optionally, the first determining module includes:

the first acquisition submodule is used for acquiring the weight of the first single-layer parameter of each water injection layer and the weight of the second single-layer parameter of the oil production well communicated with each water injection layer;

and the first determining submodule is used for determining the separate injection coefficient of each water injection layer according to the first single-layer parameter and the weight of each water injection layer and the second single-layer parameter and the weight of the oil production well communicated with each water injection layer.

Optionally, the first determining sub-module is configured to:

and adding the first numerical value and the second numerical value to obtain the dispensing coefficient of each water dispensing layer. Optionally, each of the multiple dispensing segments indicated in each dispensing scenario includes at least one water injection layer of the multiple water injection layers, and when any dispensing segment of the multiple dispensing segments includes s water injection layers, a kth water injection layer of the s water injection layers is adjacent to a (k + 1) th water injection layer, s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s-1;

Optionally, the second determining module includes:

the second determining submodule is used for determining the dispensing coefficient level difference of each dispensing segment in the plurality of dispensing segments indicated in each dispensing scheme in the plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers;

and a third determining sub-module configured to determine a largest dispensing coefficient difference among the dispensing coefficient differences of the plurality of dispensing segments indicated in each of the dispensing scenarios as the dispensing coefficient difference of each of the dispensing scenarios.

Optionally, the second determining submodule is configured to:

Optionally, the apparatus further comprises:

the first marking module is used for marking the target dispensing scheme in a first way when the dispensing coefficient level difference of the target dispensing scheme is smaller than or equal to a level difference threshold value;

and the second marking module is used for carrying out second marking on the target dispensing scheme when the dispensing coefficient level difference of the target dispensing scheme is greater than the level difference threshold value.

Optionally, the apparatus further comprises:

the sequencing module is used for sequencing the multiple separate injection schemes of the water injection well according to the sequence that the separate injection coefficient level difference of the multiple separate injection schemes is from small to large;

and the display module is used for displaying the sequenced dispensing schemes in sequence.

Optionally, the apparatus further comprises:

and the separate injection module is used for separately injecting a plurality of water injection layers corresponding to the water injection wells according to the target separate injection scheme.

According to a third aspect of embodiments of the present invention, there is provided a dispensing scenario determination apparatus for a water injection well, the apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method of determining a dispensing protocol for a water injection well of the first aspect.

According to a fourth aspect of embodiments of the present invention, there is provided a computer-readable storage medium having stored thereon instructions which, when executed by a processor, implement the steps of the method for determining a dispensing scenario for a water injection well according to the first aspect.

The technical scheme provided by the embodiment of the invention can at least bring the following beneficial effects: in the embodiment of the invention, after the first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and the second single-layer parameter of the oil production well communicated with each water injection layer are obtained, the injection coefficient of each water injection layer is determined according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer. And determining the difference of the dispensing coefficient of each dispensing scheme in the plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers. Then, the dispensing plan with the smallest difference in dispensing coefficient level among the plurality of dispensing plans is determined as the target dispensing plan. Because the injection coefficient level difference of each injection scheme in the multiple injection schemes is obtained according to a plurality of influence factors including the first single-layer parameter of each injection layer in the multiple injection layers corresponding to the water injection well and the second single-layer parameter of the production well communicated with each injection layer, the injection coefficient level difference of each injection scheme in the multiple injection schemes can reflect the energy difference between the water injection layers included in the injection segments divided by each injection scheme, therefore, the energy difference between the water injection layers included in the injection segments divided by the target injection scheme with the minimum injection coefficient level difference in the multiple injection schemes is smaller, and the multiple injection segments divided by the target injection scheme are more accurate, so that the layered water injection effect can be effectively improved when the multiple injection layers corresponding to the water injection well are injected subsequently.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a method for determining a dispensing scheme for a water injection well according to an embodiment of the present invention;

FIG. 2 is a flow chart of another method for determining a dispensing scenario for a water injection well according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a dispensing scheme determination device for a water injection well according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another injection scheme determination device for a water injection well according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a flowchart of a method for determining a dispensing scheme of a water injection well according to an embodiment of the present invention. Referring to fig. 1, the method comprises the steps of:

step 101: and acquiring a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer.

Step 102: and determining the separate injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer.

Step 103: and determining the difference of the dispensing coefficient of each dispensing scheme in a plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers, wherein each dispensing scheme is used for indicating that the plurality of dispensing layers are divided into a plurality of dispensing segments for dispensing.

Step 104: and determining the dispensing scheme with the minimum dispensing coefficient level difference in the plurality of dispensing schemes as the target dispensing scheme.

In the embodiment of the invention, after the first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and the second single-layer parameter of the oil production well communicated with each water injection layer are obtained, the injection coefficient of each water injection layer is determined according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer. And determining the difference of the dispensing coefficient of each dispensing scheme in the plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers. Then, the dispensing plan with the smallest difference in dispensing coefficient level among the plurality of dispensing plans is determined as the target dispensing plan. Because the injection coefficient level difference of each injection scheme in the multiple injection schemes is obtained according to a plurality of influence factors including the first single-layer parameter of each injection layer in the multiple injection layers corresponding to the water injection well and the second single-layer parameter of the production well communicated with each injection layer, the injection coefficient level difference of each injection scheme in the multiple injection schemes can reflect the energy difference between the water injection layers included in the injection segments divided by each injection scheme, therefore, the energy difference between the water injection layers included in the injection segments divided by the target injection scheme with the minimum injection coefficient level difference in the multiple injection schemes is smaller, and the multiple injection segments divided by the target injection scheme are more accurate, so that the layered water injection effect can be effectively improved when the multiple injection layers corresponding to the water injection well are injected subsequently.

Optionally, the second monolayer parameter comprises at least one of a number of production wells, a production well jet thickness, a well spacing between the production wells and the water injection well, a production well fluid production rate, and a formation crude oil viscosity.

Optionally, determining the injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the production well communicated with each water injection layer, including:

Optionally, determining the water injection coefficient of each water injection layer according to the first single-layer parameter and the weight thereof of each water injection layer and the second single-layer parameter and the weight thereof of the production well communicated with each water injection layer, including:

Optionally, each of the multiple dispensing segments indicated in each dispensing scenario includes at least one water injection layer of multiple water injection layers, and when any dispensing segment of the multiple dispensing segments includes s water injection layers, a kth water injection layer of the s water injection layers is adjacent to a (k + 1) th water injection layer, where s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s-1;

and the interlayer spacing between every two adjacent water injection layers in every two adjacent dispensing sections in the plurality of dispensing sections indicated in each dispensing scheme is larger than the preset distance.

Optionally, determining a dispensing coefficient level difference of each dispensing scheme of a plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer of the plurality of dispensing layers, including:

and determining the largest dispensing coefficient level difference in the dispensing coefficient level differences of the plurality of dispensing segments instructed by each dispensing scheme as the dispensing coefficient level difference of each dispensing scheme.

Optionally, determining a dispensing coefficient level difference of each dispensing segment of the multiple dispensing segments indicated in each dispensing scenario of the multiple dispensing scenarios of the water injection well according to the dispensing coefficient of each dispensing scenario of the multiple dispensing scenarios, including:

determining the difference of the injection coefficient of each injection segment to be 1 when the number of water injection layers included in each injection segment is 1 for each injection segment in the plurality of injection schemes of the water injection well indicated in each injection scheme;

and when the number of the water injection layers included in each dispensing segment is more than or equal to 2, dividing the largest dispensing coefficient of the dispensing coefficients of at least two water injection layers included in each dispensing segment by the smallest dispensing coefficient to obtain the dispensing coefficient level difference of each dispensing segment.

Optionally, after determining, as the target dispensing scenario, the dispensing scenario with the smallest dispensing coefficient step difference among the plurality of dispensing scenarios, the method further includes:

when the level difference of the injection coefficient of the target injection scheme is smaller than or equal to the level difference threshold value, carrying out first marking on the target injection scheme;

sequencing the multiple separate injection schemes according to the order of the difference of the separate injection coefficients of the multiple separate injection schemes of the water injection well from small to large;

and displaying the sequenced dispensing schemes in sequence.

All the above optional technical solutions can be combined arbitrarily to form an optional embodiment of the present invention, which is not described in detail herein.

For ease of understanding, the method for determining the injection scheme of the water injection well according to the embodiment of fig. 1 will be described with reference to fig. 2. Fig. 2 is a flowchart of a method for determining a dispensing scheme of a water injection well according to an embodiment of the present invention. Referring to fig. 2, the method includes:

step 201: and acquiring a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer.

The first monolayer parameters may include at least one of monolayer permeability, monolayer kick-off pressure differential, and monolayer kick-off thickness. Wherein, the single-layer permeability of each water injection layer can be measured by a logging instrument; the single-layer injection thickness of each water injection layer is the aperture of the injection hole in the water injection well corresponding to each water injection layer in the vertical direction, and the single-layer injection thickness can be obtained through the data of the water injection well; the single-layer injection-production starting pressure difference of each water injection layer can be obtained by the following formula (1):

ΔP＝326.5×0.098K^-0.258 (1)

wherein, delta P is the single-layer injection-production starting pressure difference, and K is the single-layer permeability.

The second single-layer parameter may include at least one of the single-layer parameters including the number of production wells, the injection thickness of the production wells, the well spacing between the production wells and the water injection wells, the production fluid yield of the production wells, and the viscosity of the formation crude oil. For a certain water injection layer, the oil production wells communicated with the water injection layer can be called the benefit wells of the water injection layer, the oil production wells communicated with the water injection layer are oil production wells which are positioned around the water injection well and can absorb water in the water injection layer, the number of the oil production wells communicated with the water injection layer is the number of the oil production wells which are positioned around the water injection well and can absorb water in the water injection layer, and the number of the oil production wells can be acquired from the water injection benefit relation table of the water injection well. For a certain water injection layer, when the number of the oil wells communicated with the water injection layer is 1, the injection thickness of the oil well communicated with the water injection layer is the injection thickness of one beneficial well of the water injection layer, when the number of the oil wells communicated with the water injection layer is greater than or equal to 2, the injection thickness of the oil well communicated with the water injection layer is the sum of the injection thicknesses of at least two beneficial wells of the water injection layer, and the injection thickness of each beneficial well of the water injection layer is the aperture of an injection hole, corresponding to the water injection layer, in each beneficial well in the vertical direction. For a certain water injection layer, when the number of the oil production wells communicated with the water injection layer is 1, the well spacing between the oil production wells and the water injection wells communicated with the water injection layer is the well spacing between one beneficial well and the water injection well of the water injection layer, and when the number of the oil production wells communicated with the water injection layer is greater than or equal to 2, the well spacing between the oil production wells and the water injection wells communicated with the water injection layer is the sum of the well spacing between at least two beneficial wells and the water injection well of the water injection layer. For a certain water injection layer, when the number of the oil production wells communicated with the water injection layer is 1, the oil production well liquid production rate communicated with the water injection layer is the product of the daily liquid production rate of a beneficial well of the water injection layer and the proportionality coefficient of the water injection layer; when the number of the oil production wells communicated with the water injection layer is more than or equal to 2, the liquid production rate of the oil production wells communicated with the water injection layer is the product of the total daily liquid production rate of at least two beneficial wells of the water injection layer and the proportionality coefficient of the water injection layer. The water injection layer proportion coefficient is the ratio of first data and second data corresponding to the water injection layer, the first data corresponding to the water injection layer is the product of the single-layer permeability of the water injection layer and the sand layer thickness of the water injection layer, and the second data is the sum of the first data corresponding to each water injection layer in a plurality of water injection layers corresponding to the water injection well.

Step 202: and determining the separate injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer.

It should be noted that the dispensing coefficient of each water injection layer is the distribution ratio of the dispensing water of each water injection layer, and the sum of the dispensing coefficients of each water injection layer in the plurality of water injection layers corresponding to the water injection wells is equal to 1. When the injection amount of the water injection well is constant, the injection coefficient of the water injection layer is larger, the more water is injected into the water injection layer, the lower the injection coefficient of the water injection layer is, and the less water is injected into the water injection layer.

Specifically, the implementation process of step 202 may be: acquiring the weight of the first single-layer parameter of each water injection layer and the weight of the second single-layer parameter of the oil production well communicated with each water injection layer; and determining the separate injection coefficient of each water injection layer according to the first single-layer parameter and the weight of each water injection layer and the second single-layer parameter and the weight of the oil production well communicated with each water injection layer.

The weight of the first single-layer parameter is used to represent the degree of influence of the first single-layer parameter on the formation energy, the weight of the second single-layer parameter is used to represent the degree of influence of the second single-layer parameter on the formation energy, and the injection coefficient is determined by the formation energy, so that the injection coefficient of the injection layer can be determined by combining the first single-layer parameter and the weight of the injection layer and the second single-layer parameter and the weight of the production well with the injection layer communicated.

The implementation process of obtaining the weight of the first single-layer parameter of each water injection layer and the weight of the second single-layer parameter of the oil production well communicated with each water injection layer can be as follows: acquiring a parameter identifier of a first single-layer parameter and a parameter identifier of a second single-layer parameter; and acquiring the parameter weight corresponding to the parameter identifier of the first single-layer parameter from the stored corresponding relation between the parameter identifier and the parameter weight as the weight of the first single-layer parameter of each water injection layer, and acquiring the parameter weight corresponding to the parameter identifier of the second single-layer parameter as the weight of the second single-layer parameter of the oil production well communicated with each water injection layer.

It should be noted that the parameter identifier of the first single-layer parameter is used to uniquely identify the first single-layer parameter, for example, the parameter identifier of the first single-layer parameter may be a name, a number, and the like of the first single-layer parameter, and the parameter identifier of the second single-layer parameter is used to uniquely identify the second single-layer parameter, for example, the parameter identifier of the second single-layer parameter may be a name, a number, and the like of the second single-layer parameter.

In addition, the corresponding relationship between the parameter identifier and the parameter weight may be preset, and the corresponding relationship between the parameter identifier and the parameter weight may be manually set in advance by a technician or automatically set in advance by a device, which is not limited in the embodiment of the present invention.

The implementation process of determining the separate injection coefficient of each water injection layer according to the first single-layer parameter and the weight of each water injection layer and the second single-layer parameter and the weight of the oil production well communicated with each water injection layer can be as follows: normalizing the first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer to obtain the normalized first single-layer parameter of each water injection layer and the normalized second single-layer parameter of the oil production well communicated with each water injection layer; multiplying the normalized first single-layer parameter of each water injection layer by the weight of the first single-layer parameter to obtain a first numerical value; multiplying the normalized second single-layer parameter of the oil production well communicated with each water injection layer by the weight of the normalized second single-layer parameter to obtain a second numerical value; and adding the first numerical value and the second numerical value to obtain the dispensing coefficient of each water dispensing layer.

It should be noted that, by performing normalization processing on the first single-layer parameter of each water injection layer and the second single-layer parameter of the production well with which each water injection layer is communicated, the first single-layer parameter and the second single-layer parameter with different variation ranges can be mapped into the same variation range [0,1], and are changed from dimensional data into dimensionless data, so that the water injection coefficient of each water injection layer can be calculated conveniently.

The first single-layer parameter of each water injection layer and the second single-layer parameter of the oil production well communicated with each water injection layer are normalized, and the realization process of obtaining the normalized first single-layer parameter of each water injection layer and the normalized second single-layer parameter of the oil production well communicated with each water injection layer can be as follows: obtaining the normalized first single-layer parameter of each water injection layer and the second single-layer parameter of each oil well communicated with the water injection layer according to the following formula (2):

wherein, F_ijJ is more than or equal to 1 and less than or equal to n, i is more than or equal to 1 and less than or equal to m, n is the number of the water injection layers, and m is the number of single-layer parameters (namely the first single-layer parameter of the water injection layer and the second single-layer parameter of the oil production well communicated with the water injection layer) corresponding to the j-th water injection layer; x_ijSetting the parameter of the ith single layer corresponding to the jth water injection layer; a is_i1The minimum single-layer parameter in the ith single-layer parameters corresponding to the multiple water injection layers; a is_i2The maximum single layer parameter in the ith single layer parameters corresponding to the multiple water injection layers.

It should be noted that the single-layer parameters corresponding to the water injection layer may be ordered. For example, when the first single-layer parameter of the water injection layer includes single-layer permeability, single-layer injection-production start pressure difference, and single-layer jet-out thickness, and the second single-layer parameter of the production well to which the water injection layer is connected includes the number of production wells, the production-well jet-out thickness, the well spacing between the production well and the water injection well, the production well fluid production rate, and the formation crude oil viscosity, the single-layer permeability may be set as the 1 st single-layer parameter, the single-layer injection-production start pressure difference as the 2 nd single-layer parameter, the single-layer jet-out thickness as the 3 rd single-layer parameter, the formation crude oil viscosity as the 4 th single-layer parameter, the number of production wells as the 5 th single-layer parameter, the production well jet-out thickness as the 6 th single-layer parameter, the well spacing between the production well and the water injection well as the 7 th single-layer parameter, and the production well fluid production rate as the 8 th single-layer parameter.

Multiplying the normalized first single-layer parameter of each water injection layer by the weight of the first single-layer parameter to obtain a first numerical value; multiplying the normalized second single-layer parameter of the oil production well communicated with each water injection layer by the weight of the normalized second single-layer parameter to obtain a second numerical value; the process of adding the first value and the second value to obtain the dispensing coefficient of each water-pouring layer can be realized by the following formula (3):

wherein, FZ_n1The dispensing coefficient for the nth water-pouring layer,. mu._1mIs the weight of the m-th single-layer parameter, F_mnAnd the normalized mth single-layer parameter corresponding to the nth water injection layer is obtained.

Step 203: and determining the difference of the dispensing coefficient of each dispensing scheme in a plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers, wherein each dispensing scheme is used for indicating that the plurality of dispensing layers are divided into a plurality of dispensing segments for dispensing.

Note that the difference in the dispensing coefficients is used to indicate the difference between the dispensing coefficients.

Each of the multiple dispensing sections indicated in each dispensing scheme comprises at least one water injection layer of multiple water injection layers, and when any one of the multiple dispensing sections comprises s water injection layers, the kth water injection layer of the s water injection layers is adjacent to the (k + 1) th water injection layer, s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s-1; and the interlayer spacing between every two adjacent water injection layers in every two adjacent dispensing sections in the plurality of dispensing sections indicated in each dispensing scheme is larger than the preset distance.

That is, each of the multiple dispensing segments indicated in each dispensing scenario may include only one dispensing layer, or may include multiple dispensing layers. When a plurality of water injection layers are included in one injection segment, the plurality of water injection layers are continuous water injection layers in the formation. Any two adjacent water injection layers with the interlayer spacing smaller than or equal to the preset distance in the plurality of water injection layers corresponding to the water injection well cannot be divided into two separate injection sections, that is, the two adjacent water injection layers with the interlayer spacing smaller than or equal to the preset distance can only be divided into one separate injection section.

The multiple dispensing schemes are determined according to the number of multiple water injection layers corresponding to the water injection wells, the number of preset dispensing segments and a preset distance. The preset distance may be preset and may be determined according to a size of a packer that is lowered when the water injection well is injected, for example, when the thickness of the packer is 2.2m (meter), the preset distance may be set to 2.5m, so that two adjacent water injection layers with a layer spacing smaller than or equal to 2.5m will be divided into one injection segment, of course, the preset distance may be other values as long as the lowering requirement of the packer can be met, which is not specifically limited in the embodiment of the present invention.

For example, when the number of the water injection layers corresponding to the water injection well is 5, the 1 st water injection layer, the 2 nd water injection layer, the 3 rd water injection layer, the 4 th water injection layer and the 5 th water injection layer are sequentially arranged, the number of the preset injection segments is 3, the interlayer distance between the 1 st water injection layer and the 2 nd water injection layer is 2.8m, the interlayer distance between the 2 nd water injection layer and the 3 rd water injection layer is 2.6m, the interlayer distance between the 3 rd water injection layer and the 4 th water injection layer is 2.6m, the interlayer distance between the 4 th water injection layer and the 5 th water injection layer is 2.3m, and the preset distance is 2.5 m. At this time, the 5 water injection layers can be aligned and combined, and since the interlayer distance between the 4 th water injection layer and the 5 th water injection layer is less than 2.5m, the 4 th water injection layer and the 5 th water injection layer can be divided into only one water injection segment, so that there are 3 separate injection schemes formed after alignment and combination, which are respectively a first separate injection scheme, a second separate injection scheme and a third separate injection scheme, as shown in table 1 below:

TABLE 1

In the present invention, a plurality of dispensing schemes are described by taking table 1 as an example, and table 1 does not limit the present invention.

The implementation process of determining the difference of the dispensing coefficient of each dispensing scheme in the multiple dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the multiple dispensing layers may be: determining the difference of the dispensing coefficient of each dispensing segment in the plurality of dispensing segments indicated in each dispensing scheme in the plurality of dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the plurality of dispensing layers; and determining the largest dispensing coefficient level difference in the dispensing coefficient level differences of the plurality of dispensing segments instructed by each dispensing scheme as the dispensing coefficient level difference of each dispensing scheme.

The implementation process of determining the difference of the dispensing coefficient of each dispensing segment in the multiple dispensing segments indicated in each dispensing scheme in the multiple dispensing schemes of the water injection well according to the dispensing coefficient of each dispensing layer in the multiple dispensing schemes may be: determining the difference of the injection coefficient of each injection segment to be 1 when the number of water injection layers included in each injection segment is 1 for each injection segment in the plurality of injection schemes of the water injection well indicated in each injection scheme; and when the number of the water injection layers included in each dispensing segment is more than or equal to 2, dividing the largest dispensing coefficient of the dispensing coefficients of at least two water injection layers included in each dispensing segment by the smallest dispensing coefficient to obtain the dispensing coefficient level difference of each dispensing segment.

Continuing with the above example, when the dispensing coefficients of 5 water injection layers corresponding to the water injection wells are 0.15, 0.05, 0.25 and 0.3 in sequence, for the first dispensing scheme, since the first dispensing section and the second dispensing section both have only 1 water injection layer, the dispensing coefficient level difference of the first dispensing section and the second dispensing section is 1, the 3 rd dispensing section includes 3 water injection layers, the largest dispensing coefficient among the dispensing coefficients of the 3 water injection layers is 0.3, the smallest dispensing coefficient is 0.25, and the dispensing coefficient level difference of the 3 rd dispensing section is 1.2. Since the largest dispensing coefficient step among the dispensing coefficient steps of 3 dispensing segments in the first dispensing scenario is 1.2, the dispensing coefficient step in the first dispensing scenario is 1.2. Similarly, in the second dispensing scenario, the dispensing coefficient step of the 1 st dispensing segment is 1, the dispensing coefficient step of the 2 nd dispensing segment is 5, and the dispensing coefficient step of the 3 rd dispensing segment is 1.2, so the dispensing coefficient step of the second dispensing scenario is 5. In the third dispensing scenario, the dispensing coefficient step of the 1 st dispensing segment is 3, the dispensing coefficient step of the 2 nd dispensing segment is 1, and the dispensing coefficient step of the 3 rd dispensing segment is 1.2, so the dispensing coefficient step of the third dispensing scenario is 3.

Further, after determining the difference in the dispensing coefficient for each of the plurality of dispensing scenarios for the water injection well according to step 203, the plurality of dispensing scenarios may be displayed, and specifically, the operation of displaying the plurality of dispensing scenarios may be implemented by the following step 204.

Step 204: and sequencing the multiple dispensing schemes according to the order of the dispensing coefficient level differences of the multiple dispensing schemes of the water injection well from small to large, and displaying the sequenced multiple dispensing schemes in sequence.

Continuing with the above example, when the dispensing coefficient step of the first dispensing scenario is 1.2, the dispensing coefficient step of the second dispensing scenario is 5, and the dispensing coefficient step of the third dispensing scenario is 3, since 1.2<3<5, the three dispensing scenarios can be displayed in the order of the first dispensing scenario, the third dispensing scenario, and the second dispensing scenario.

After determining the difference in the dispensing coefficient for each of the plurality of dispensing scenarios for the water injection well in accordance with step 203, not only the plurality of dispensing scenarios may be displayed in accordance with step 204, but also a target dispensing scenario of the plurality of dispensing scenarios may be determined, and specifically, the operation of determining the target dispensing scenario of the plurality of dispensing scenarios may be implemented in step 205 as follows.

Step 205: and determining the dispensing scheme with the minimum dispensing coefficient level difference in the plurality of dispensing schemes as the target dispensing scheme.

Continuing with the above example, when the dispensing coefficient step of the first dispensing scenario is 1.2, the dispensing coefficient step of the second dispensing scenario is 5, and the dispensing coefficient step of the third dispensing scenario is 3, since 1.2<3<5, the first dispensing scenario can be determined as the target dispensing scenario.

In the case where there are a plurality of dispensing recipes having the smallest difference in dispensing coefficient level among the plurality of dispensing recipes, each of the plurality of dispensing recipes having the smallest difference in dispensing coefficient level may be determined as a target dispensing recipe. The target dispensing scheme is the dispensing scheme with the best layered water injection effect in the plurality of dispensing schemes.

Further, after determining the target dispensing scheme according to step 205, the target dispensing scheme may be marked, and specifically, the operation of marking the target dispensing scheme may be implemented as follows in step 206.

Step 206: when the level difference of the injection coefficient of the target injection scheme is smaller than or equal to the level difference threshold value, carrying out first marking on the target injection scheme; and when the difference of the dispensing coefficient of the target dispensing scheme is larger than the difference threshold value, performing second marking on the target dispensing scheme.

It should be noted that, the step threshold may be preset and may be set according to the dispensing requirement of the water injection well, and the step threshold may be manually set in advance by a technician before marking the target dispensing scheme, or may be automatically set in advance by the apparatus, which is not limited in this embodiment of the present invention.

In addition, the first mark and the second mark may be marks with different colors, for example, the first mark may be a mark with red color, and the second mark may be a mark with green color; alternatively, the first and second indicia may be marked with different symbols, e.g., the first indicia may be marked with a five-pointed star symbol and the second indicia may be marked with a circle symbol. Of course, the first mark and the second mark may be marked in other forms, which is not particularly limited in the embodiment of the present invention.

Further, in the embodiment of the present invention, after the first marking or the second marking is performed on the target dispensing scenario, the target dispensing scenario and the dispensing scenarios other than the target dispensing scenario among the plurality of dispensing scenarios may be displayed. In this way, the technician can know the target dispensing scheme in the plurality of dispensing schemes in time according to the first mark or the second mark, and then can select the dispensing scheme to be actually used from the displayed dispensing schemes by integrating factors such as production cost, management cost and the like. Of course, before displaying the dispensing schemes, the embodiments of the present invention may also sequence the dispensing schemes to be displayed by integrating the factors such as the dispensing coefficient difference, the production cost, and the management cost, and then may display the sequenced dispensing schemes in sequence, so that a user may directly select the dispensing scheme to be actually used from the dispensing schemes displayed in sequence, thereby improving the dispensing scheme selection efficiency. After the technician selects the dispensing scheme to be actually used, the plurality of water injection layers corresponding to the water injection wells can be dispensed according to the selected dispensing scheme.

It is to be noted that, in the embodiment of the present invention, not only the multiple water injection layers corresponding to the water injection wells may be separately injected according to the separate injection scheme selected by the technician, but also the multiple water injection layers corresponding to the water injection wells may be directly separately injected according to the target separate injection scheme after the target separate injection scheme is determined according to step 205, so as to implement automatic selection of the separate injection scheme and automatic separate injection of the water injection wells.

Fig. 3 is a schematic structural diagram of a dispensing scheme determination device for a water injection well according to an embodiment of the present invention. Referring to fig. 3, the dispensing scenario determining apparatus for a water injection well includes: an acquisition module 301, a first determination module 302, a second determination module 303, and a third determination module 304.

The acquisition module 301 is configured to acquire a first single-layer parameter of each water injection layer in a plurality of water injection layers corresponding to the water injection well and a second single-layer parameter of the oil production well communicated with each water injection layer;

the first determining module 302 is configured to determine a water injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the production well communicated with each water injection layer;

a second determining module 303, configured to determine, according to a dispensing coefficient of each of the multiple water injection layers, a dispensing coefficient level difference of each of multiple dispensing schemes of the water injection well, where each dispensing scheme is used to instruct that the multiple water injection layers are divided into multiple dispensing segments for dispensing;

a third determining module 304, configured to determine, as the target dispensing scenario, the dispensing scenario with the smallest dispensing coefficient step difference among the plurality of dispensing scenarios.

Optionally, the first determining module 302 includes:

the first acquisition submodule is used for acquiring the weight of the first single-layer parameter of each water injection layer in the plurality of water injection layers and the weight of the second single-layer parameter of the oil production well communicated with each water injection layer;

and the first determining submodule is used for determining the separate injection coefficient of each water injection layer according to the first single-layer parameter and the weight of each water injection layer and the second single-layer parameter and the weight of the production well communicated with each water injection layer.

Optionally, the first determining sub-module is configured to:

Optionally, the second determining module 303 includes:

and a third determining sub-module configured to determine a largest dispensing coefficient step among the dispensing coefficient steps of the plurality of dispensing segments indicated in each dispensing scenario as the dispensing coefficient step for each dispensing scenario.

Optionally, the second determining submodule is configured to:

Optionally, the apparatus further comprises:

the first marking module is used for marking the target separate injection scheme in a first marking mode when the separate injection coefficient level difference of the target separate injection scheme is smaller than or equal to the level difference threshold value;

Optionally, the apparatus further comprises:

the sequencing module is used for sequencing the multiple separate injection schemes according to the sequence of the separate injection coefficient differences of the multiple separate injection schemes of the water injection well from small to large;

and the display module is used for displaying the sequenced multiple dispensing schemes in sequence.

Optionally, the apparatus further comprises:

and the injection module is used for performing injection on a plurality of water injection layers corresponding to the water injection wells according to the target injection scheme.

It should be noted that: in the above embodiment, when determining the dispensing scheme of the water injection well, the dispensing scheme determining device of the water injection well is only illustrated by the division of the above functional modules, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. In addition, the separate injection scheme determining device for the water injection well and the separate injection scheme determining method for the water injection well provided by the embodiments belong to the same concept, and specific implementation processes are detailed in the method embodiments and are not described herein again.

Fig. 4 is a schematic structural diagram of a dispensing scheme determination device for a water injection well according to an embodiment of the present invention. Referring to fig. 4, the apparatus may be a terminal 400, and the terminal 400 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. The terminal 400 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc.

Generally, the terminal 400 includes: a processor 401 and a memory 402.

Processor 401 may include one or more processing cores, such as a 4-core processor, an 8-core processor, or the like. The processor 401 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 401 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 401 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 401 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 402 may include one or more computer-readable storage media, which may be non-transitory. Memory 402 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 402 is used to store at least one instruction for execution by processor 401 to implement the method for determining a dispensing protocol for a water injection well provided by the method embodiments herein.

In some embodiments, the terminal 400 may further optionally include: a peripheral interface 403 and at least one peripheral. The processor 401, memory 402 and peripheral interface 403 may be connected by bus or signal lines. Each peripheral may be connected to the peripheral interface 403 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 404, touch screen display 405, camera 406, audio circuitry 407, positioning components 408, and power supply 409.

The peripheral interface 403 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 401 and the memory 402. In some embodiments, processor 401, memory 402, and peripheral interface 403 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 401, the memory 402 and the peripheral interface 403 may be implemented on a separate chip or circuit board, which is not limited by this embodiment.

The Radio Frequency circuit 404 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 404 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 404 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 404 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 404 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 404 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 405 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 405 is a touch display screen, the display screen 405 also has the ability to capture touch signals on or over the surface of the display screen 405. The touch signal may be input to the processor 401 as a control signal for processing. At this point, the display screen 405 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 405 may be one, providing the front panel of the terminal 400; in other embodiments, the display screen 405 may be at least two, respectively disposed on different surfaces of the terminal 400 or in a folded design; in still other embodiments, the display 405 may be a flexible display disposed on a curved surface or a folded surface of the terminal 400. Even further, the display screen 405 may be arranged in a non-rectangular irregular pattern, i.e. a shaped screen. The Display screen 405 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.

The camera assembly 406 is used to capture images or video. Optionally, camera assembly 406 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 406 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

The audio circuit 407 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 401 for processing, or inputting the electric signals to the radio frequency circuit 404 for realizing voice communication. For the purpose of stereo sound collection or noise reduction, a plurality of microphones may be provided at different portions of the terminal 400. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 401 or the radio frequency circuit 404 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 407 may also include a headphone jack.

The positioning component 408 is used to locate the current geographic position of the terminal 400 for navigation or LBS (Location Based Service). The Positioning component 408 may be a Positioning component based on the GPS (Global Positioning System) of the united states, the beidou System of china, the graves System of russia, or the galileo System of the european union.

The power supply 409 is used to supply power to the various components in the terminal 400. The power source 409 may be alternating current, direct current, disposable or rechargeable. When power source 409 comprises a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, the terminal 400 also includes one or more sensors 410. The one or more sensors 410 include, but are not limited to: acceleration sensor 411, gyro sensor 412, pressure sensor 413, fingerprint sensor 414, optical sensor 415, and proximity sensor 416.

The acceleration sensor 411 may detect the magnitude of acceleration in three coordinate axes of the coordinate system established with the terminal 400. For example, the acceleration sensor 411 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 401 may control the touch display screen 405 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 411. The acceleration sensor 411 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 412 may detect a body direction and a rotation angle of the terminal 400, and the gyro sensor 412 may cooperate with the acceleration sensor 411 to acquire a 3D motion of the terminal 400 by the user. From the data collected by the gyro sensor 412, the processor 401 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor 413 may be disposed on a side bezel of the terminal 400 and/or a lower layer of the touch display screen 405. When the pressure sensor 413 is disposed on the side frame of the terminal 400, a user's holding signal to the terminal 400 can be detected, and the processor 401 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 413. When the pressure sensor 413 is disposed at the lower layer of the touch display screen 405, the processor 401 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 405. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor 414 is used for collecting a fingerprint of the user, and the processor 401 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 414, or the fingerprint sensor 414 identifies the identity of the user according to the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, processor 401 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. The fingerprint sensor 414 may be disposed on the front, back, or side of the terminal 400. When a physical key or vendor Logo is provided on the terminal 400, the fingerprint sensor 414 may be integrated with the physical key or vendor Logo.

The optical sensor 415 is used to collect the ambient light intensity. In one embodiment, the processor 401 may control the display brightness of the touch display screen 405 based on the ambient light intensity collected by the optical sensor 415. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 405 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 405 is turned down. In another embodiment, the processor 401 may also dynamically adjust the shooting parameters of the camera assembly 406 according to the ambient light intensity collected by the optical sensor 415.

A proximity sensor 416, also known as a distance sensor, is typically disposed on the front panel of the terminal 400. The proximity sensor 416 is used to collect the distance between the user and the front surface of the terminal 400. In one embodiment, when the proximity sensor 416 detects that the distance between the user and the front surface of the terminal 400 gradually decreases, the processor 401 controls the touch display screen 405 to switch from the bright screen state to the dark screen state; when the proximity sensor 416 detects that the distance between the user and the front surface of the terminal 400 gradually becomes larger, the processor 401 controls the touch display screen 405 to switch from the breath screen state to the bright screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 4 is not intended to be limiting of terminal 400 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A method of determining a dispensing profile for a water injection well, the method comprising:

determining the dispensing scheme with the smallest dispensing coefficient level difference in the plurality of dispensing schemes as a target dispensing scheme;

wherein, the determining the injection coefficient of each water injection layer according to the first single-layer parameter of each water injection layer and the second single-layer parameter of the production well communicated with each water injection layer comprises:

2. The method of claim 1, wherein the first monolayer parameters comprise at least one of monolayer permeability, monolayer drawdown start-up pressure differential, and monolayer kick-off thickness.

3. The method of claim 1, wherein the second monolayer parameters comprise at least one of production well number, production well jet thickness, well spacing between production well and water injection well, production well fluid production, and formation crude oil viscosity.

4. The method according to claim 1, wherein each of the plurality of dispensing sections indicated in each dispensing scenario includes at least one water-flooding layer of the plurality of water-flooding layers, and when any of the plurality of dispensing sections includes s water-flooding layers, a kth water-flooding layer of the s water-flooding layers is adjacent to a (k + 1) th water-flooding layer, s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s-1;

5. The method of claim 1, wherein determining a dispensing coefficient level difference for each of a plurality of dispensing scenarios for the water injection well based on the dispensing coefficient for each of the plurality of water injection layers comprises:

6. The method of claim 5, wherein said determining a dispensing coefficient level difference for each of the plurality of dispensed segments indicated in each of the plurality of dispensing scenarios for the water injection well based on the dispensing coefficient for each of the plurality of dispensing scenarios for the water injection well comprises:

7. The method according to any one of claims 1 to 6, wherein after determining a dispensing scenario with a smallest dispensing coefficient step difference among the plurality of dispensing scenarios as a target dispensing scenario, the method further comprises:

8. The method according to any one of claims 1 to 6, wherein after determining a dispensing coefficient level difference for each of the plurality of dispensing scenarios for the water injection well based on the dispensing coefficient for each of the plurality of water injection layers, further comprising:

and displaying the sequenced dispensing schemes in sequence.

9. The method according to any one of claims 1 to 6, wherein after determining a dispensing scenario with a smallest dispensing coefficient step difference among the plurality of dispensing scenarios as a target dispensing scenario, the method further comprises:

10. A dispensing scenario determination apparatus for a water injection well, the apparatus comprising:

a third determining module, configured to determine, as a target dispensing scenario, a dispensing scenario with a smallest dispensing coefficient difference among the multiple dispensing scenarios;

wherein the first determining module comprises:

a first determination submodule for:

11. The apparatus of claim 10, wherein the first monolayer parameters comprise at least one of monolayer permeability, monolayer drawdown start-up pressure differential, and monolayer kick-off thickness.

12. The apparatus of claim 10, wherein the second monolayer parameters comprise at least one of a number of production wells, a production well jet thickness, a well spacing between a production well and a water injection well, a production well fluid production volume, and a formation crude oil viscosity.

13. The apparatus of claim 10, wherein each of the plurality of dispensing sections indicated in each dispensing scenario includes at least one of the plurality of water flooding layers, and when any of the plurality of dispensing sections includes s water flooding layers, a kth water flooding layer of the s water flooding layers is adjacent to a (k + 1) th water flooding layer, s is an integer greater than or equal to 2, and k is an integer greater than or equal to 1 and less than or equal to s "1;

14. The apparatus of claim 10, wherein the second determining module comprises:

15. The apparatus of claim 14, wherein the second determination submodule is to:

16. The apparatus of any of claims 10-15, wherein the apparatus further comprises:

17. The apparatus of any of claims 10-15, wherein the apparatus further comprises:

18. The apparatus of any of claims 10-15, wherein the apparatus further comprises:

19. A dispensing scenario determination apparatus for a water injection well, the apparatus comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of any of the methods of claims 1-9.

20. A computer-readable storage medium having instructions stored thereon, wherein the instructions, when executed by a processor, implement the steps of any of the methods of claims 1-9.