A method and device for drawing an oil and gas reservoir effective thickness lower limit standard chart

Abstract

The present application relates to a kind of oil and gas reservoir effective thickness lower limit standard chart drawing method and device, for reducing artificial cost.The present application method includes: extracting target keyword information from original data data, and establishing standardized format base data table according to the target keyword information, the original data data is the basic data data for establishing oil and gas reservoir effective thickness lower limit standard;According to the target keyword information, all the basic data points in the standardized format base data table are classified and processed, to obtain several different types of basic data point sets;Different types of basic data point sets are sequentially imported into initial template;All different types of basic data point sets in the initial template are set corresponding display form according to preset distinguishing rule, to generate oil and gas reservoir effective thickness lower limit standard chart.

Description

Technical Field

[0001] This invention relates to the field of oil and gas exploration and development, and in particular to a method and apparatus for drawing a standard chart of the lower limit of the effective thickness of oil and gas reservoirs. Background Technology

[0002] The effective thickness of an oil and gas reservoir refers to the thickness of an oil and gas-bearing formation that, under current economic and technological conditions, meets the reserve calculation criteria and possesses industrial oil and gas production capacity. The lower limit standard map for the effective thickness of oil and gas reservoirs is one of the fundamental maps used in reservoir evaluation and reserve declaration processes, and it is of great significance for accurately understanding reservoir characteristics and calculating the effective thickness of oil and gas reservoirs.

[0003] Currently, the existing method for drawing standard charts of the effective thickness lower limit of oil and gas reservoirs is usually done using spreadsheet drawing tools. This method typically requires manual operation; for example, after importing the data into the spreadsheet, manual data organization and classification are necessary, and after importing the organized data into the chart, manual data display and differentiation are required. When the data volume is large, staff need to spend a significant amount of time and effort to draw the charts, thus increasing labor costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method and apparatus for drawing a standard chart of the lower limit of the effective thickness of oil and gas reservoirs.

[0005] The technical solution adopted by this invention to solve its technical problem is: a method for drawing a standard chart of the lower limit of the effective thickness of oil and gas reservoirs, comprising:

[0006] S101. Extract target keyword information from the original data and establish a standardized format basic data table based on the target keyword information. The original data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs.

[0007] S102. Classify all basic data points in the standardized format basic data table according to the target keyword information to obtain several different types of basic data point sets.

[0008] S103. Import the different types of basic data point sets into the initial template in sequence;

[0009] S104. Set the display format of all different types of basic data point sets in the initial template according to the preset differentiation rules to generate a standard map of the lower limit of effective thickness of oil and gas reservoir.

[0010] Preferably, step S102 includes:

[0011] Each basic data point in the standardized format basic data table is assigned a label with a uniform format. The label contains four types of target keyword information: well name, layer name, data source, and conclusion description.

[0012] Determine whether different basic data points simultaneously meet the first preset classification condition, the second preset classification condition, and the third preset classification condition. The first preset classification condition is that the data source and conclusion description in the corresponding labels of the different basic data points are consistent. The second preset classification condition is that the different basic data points belong to the same geological structural unit in the plane. The third preset classification condition is that the different basic data points belong to the same stratigraphic unit in the vertical direction.

[0013] If so, determine that the different basic data points are of the same type of basic data points.

[0014] Preferably, both the well name and the stratigraphic name consist of several different codes;

[0015] The different codes in the well names are used to determine whether different basic data points belong to the same geological structural unit on the plane;

[0016] The different codes in the stratigraphic name are used to determine whether different basic data points belong to the same stratigraphic unit in the vertical direction;

[0017] Preferably, step S104 includes:

[0018] Based on the different types of conclusion descriptions, the basic data point set in the initial template is set with corresponding color display formats according to preset color rules;

[0019] Based on the different data source types, the basic data point set in the initial template is set with corresponding symbol display formats according to preset symbol rules.

[0020] Preferably, the conclusion description type includes water layer, dry layer, and other layers, and the step of setting the corresponding color display format of the basic data point set in the initial template according to the different conclusion description types and preset color rules includes:

[0021] The basic data point set whose conclusion description type is the water layer is assigned a blue color, the basic data point set whose conclusion description type is the dry layer is assigned a black color, and the basic data point set whose conclusion description is the other layer is assigned a mixed color, including red, yellow, green and purple.

[0022] Preferably, the data source types include core samples and non-core samples, and the step of setting the corresponding symbol display format for the basic data point set in the initial template according to the preset symbol rules based on the different data source types includes:

[0023] Core-customized symbol assignment is performed on the basic data point set whose data source type is core; conventional symbol assignment is performed on the basic data point set whose data source type is not core.

[0024] Preferably, the other layers include background points in non-target areas. These background points are conclusion description types corresponding to basic data points that do not belong to the same geological structural unit in the plane and the same stratigraphic unit in the vertical direction. The step of setting the corresponding display format of the basic data point set in the initial template according to a preset color rule based on different conclusion description types further includes:

[0025] When the conclusion description type of the basic data point set is dry layer, the internal fill color of the corresponding symbol of the basic data point set is removed;

[0026] When the conclusion description type of the basic data point set is a background point in a non-target area, the size and color transparency of the corresponding symbol in the basic data point set are reduced by half.

[0027] The present invention also provides an apparatus for drawing a standard chart of the lower limit of the effective thickness of oil and gas reservoirs, comprising:

[0028] A unit is established to extract target keyword information from the raw data and to establish a standardized format basic data table based on the target keyword information. The raw data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs.

[0029] The classification unit is used to classify all basic data points in the standardized format basic data table according to the target keyword information, so as to obtain several different types of basic data point sets;

[0030] The import unit is used to sequentially import the different types of basic data point sets into the initial template;

[0031] The setting unit is used to set the corresponding display format of all different types of basic data point sets in the initial template according to the preset differentiation rules, so as to generate a standard map of the lower limit of the effective thickness of oil and gas reservoirs.

[0032] The present invention also provides an electronic device, comprising:

[0033] Central processing unit, memory, input / output interfaces, wired or wireless network interfaces, and power supply;

[0034] The memory is either a short-term storage memory or a persistent storage memory;

[0035] The central processing unit is configured to communicate with the memory and execute instructions in the memory to perform the above-mentioned method for drawing the standard chart of the effective thickness lower limit of oil and gas reservoirs.

[0036] The present invention also provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the above-mentioned method for drawing the standard chart of the effective thickness lower limit of oil and gas reservoirs.

[0037] The present invention offers the following advantages: First, target keyword information is extracted from the original data, and a standardized format basic data table is established based on this target keyword information. This original data serves as the foundation for establishing the lower limit standard for the effective thickness of oil and gas reservoirs. Then, all basic data points in the standardized format basic data table are classified according to the target keyword information, resulting in several different types of basic data point sets. These different types of basic data point sets are then sequentially imported into an initial template. Finally, all different types of basic data point sets in the initial template are set to their corresponding display formats according to preset differentiation rules to generate the lower limit standard map for the effective thickness of oil and gas reservoirs. In this way, basic data points can be classified according to the target keyword information, and then the imported basic data points in the initial template can be displayed and differentiated according to different types and preset differentiation rules, thus realizing the drawing of the lower limit standard map for the effective thickness of oil and gas reservoirs without the need for manual classification and display differentiation, thereby reducing the labor cost of drawing the lower limit standard map for the effective thickness of oil and gas reservoirs. Attached Figure Description

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0039] Figure 1 This is a schematic diagram of an embodiment of the method for drawing the standard chart of the lower limit of the effective thickness of oil and gas reservoirs according to the present invention;

[0040] Figure 2 This is a schematic diagram of another embodiment of the method for drawing the standard chart of the lower limit of the effective thickness of oil and gas reservoirs according to the present invention;

[0041] Figure 3 This is a schematic diagram of an embodiment of the drawing device for the standard chart of the lower limit of the effective thickness of oil and gas reservoirs of the present invention;

[0042] Figure 4 This is a schematic diagram of an embodiment of the electronic device of the present invention. Detailed Implementation

[0043] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the invention will now be described in detail with reference to the accompanying drawings. Features specified with "first," "second," "third," etc., may explicitly or implicitly include one or more of those features. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0044] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0045] This invention provides a method and apparatus for drawing a standard chart of the lower limit of the effective thickness of oil and gas reservoirs, which can reduce labor costs.

[0046] The method for drawing the standard chart of the effective thickness lower limit of oil and gas reservoirs provided by this invention is applied to a system, server, or terminal with logic analysis and processing capabilities for implementation. This invention is described using a system as an example. Figure 1 As shown, one embodiment of the method for drawing the standard chart of the lower limit of the effective thickness of oil and gas reservoirs according to the present invention includes:

[0047] S101. Extract target keyword information from the original data and establish a standardized format basic data table based on the target keyword information. The original data is the basic data used to establish the standard for the lower limit of the effective thickness of oil and gas reservoirs.

[0048] In this embodiment, the system first acquires the raw data uploaded by the user. This raw data package contains basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs, including wellbore measurement data, reservoir parameter logging calculation data, pressure measurement data, sampling data, geological stratification data, core sampling data, and oil and gas well mid-way testing and production data. Among them, the wellbore measurement data may include parameters such as natural gamma, density, neutron porosity, sonic transit time, and resistivity, while the reservoir parameter logging calculation data may include parameters such as porosity, permeability, and saturation.

[0049] Then, the system extracts target keyword information corresponding to the preset target keywords from the raw data. For example, the preset target keywords could be well name, stratigraphic name, data source, depth, porosity, clay content, water saturation, resistivity, and a conclusion description. The target keyword information is the data corresponding to each target keyword, such as well name XJ2-4-A and stratigraphic name ZJ110; specific details are not limited here. Finally, the target keyword information corresponding to all basic data points is organized and summarized to obtain a standardized format basic data table. For example, the standardized format basic data table corresponding to the above target keywords is as follows:

[0050]

[0051] S102. Based on the target keyword information, classify all basic data points in the standardized format basic data table to obtain several different types of basic data point sets.

[0052] In this embodiment, in the standard chart of the lower limit of effective thickness of oil and gas reservoirs, basic data points of the same type are usually required to have the same display format. Therefore, it is necessary to classify the basic data points. The target keyword information contains data corresponding to multiple target keywords. When a target keyword is used as a reference, the system can classify the various basic data points in the standardized format basic data table according to this reference. For example, using the data source and conclusion description in the target keyword as a reference, when any different basic data points have the same data source and the same conclusion description, these basic data points can be classified into the same type. The specific classification process will be described in subsequent embodiments. After classification, different types of basic data point sets are obtained. These sets contain multiple different types of basic data points, such as: type A basic data points, type B basic data points, or type C basic data points. Each type of basic data point can contain only one basic data point or multiple basic data points simultaneously; no specific limitation is made here.

[0053] S103. Import different types of basic data point sets into the initial template in sequence;

[0054] In this embodiment, the initial template is a preliminary two-dimensional scatter plot. This two-dimensional scatter plot is a blank plot without data. Users can create different styles of blank plots as initial templates according to actual needs, so that the system can quickly import different types of basic data point sets in sequence.

[0055] S104. Set the display format of all different types of basic data point sets in the initial template according to the preset differentiation rules to generate the standard map of the lower limit of effective thickness of oil and gas reservoir.

[0056] After importing all different types of basic data point sets into the initial template, in order to facilitate the differentiation of each basic data point set in the initial template, different display formats can be set for different types of basic data point sets according to preset differentiation rules, so as to generate a more intuitive standard chart of the lower limit of effective thickness of oil and gas reservoirs.

[0057] In this embodiment, target keyword information is first extracted from the original data, and a standardized format basic data table is established based on the target keyword information. This original data serves as the foundational data for establishing the lower limit standard for effective thickness of oil and gas reservoirs. Then, all basic data points in the standardized format basic data table are classified according to the target keyword information, resulting in several different types of basic data point sets. These different types of basic data point sets are then sequentially imported into an initial template. Finally, all different types of basic data point sets in the initial template are set to their corresponding display formats according to preset differentiation rules to generate the lower limit standard map for effective thickness of oil and gas reservoirs. In this way, basic data points can be classified according to the target keyword information, and then the imported basic data points in the initial template can be displayed according to different types and preset differentiation rules, thus realizing the drawing of the lower limit standard map for effective thickness of oil and gas reservoirs without the need for manual classification and display differentiation, thereby reducing the labor cost of drawing the lower limit standard map for effective thickness of oil and gas reservoirs. Furthermore, since manual classification and display differentiation are no longer required, the increased working time due to manual operation can be reduced, thereby improving the drawing efficiency of the lower limit standard map for effective thickness of oil and gas reservoirs. Moreover, since preset differentiation rules are used for display differentiation, the differences between the drawings created by different staff can be reduced, thereby improving the comparability and universality of different drawings.

[0058] like Figure 2 As shown, another embodiment of the method for drawing the standard chart of the lower limit of the effective thickness of oil and gas reservoirs according to the present invention includes:

[0059] S201. Extract target keyword information from the original data and establish a standardized format basic data table based on the target keyword information. The original data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs.

[0060] Step S201 in this embodiment is the same as the aforementioned Figure 1 The type of step S101 in the illustrated embodiment will not be described again here.

[0061] S202. Assign a uniform label to each basic data point in the standardized format basic data table. The label contains four target keyword information: well name, stratigraphic name, data source, and conclusion description. The well name and stratigraphic name are composed of several different codes. The different codes in the well name are used to determine whether different basic data points belong to the same geological structural unit in the plane, and the different codes in the stratigraphic name are used to determine whether different basic data points belong to the same stratigraphic unit in the vertical direction.

[0062] S203. Determine whether different basic data points simultaneously meet the first preset classification condition, the second preset classification condition, and the third preset classification condition. The first preset classification condition is that the data source and conclusion description in the corresponding labels of different basic data points are consistent. The second preset classification condition is that different basic data points belong to the same geological structural unit in the plane. The third preset classification condition is that different basic data points belong to the same stratigraphic unit in the vertical direction. If so, proceed to step S204.

[0063] S204. Determine that different basic data points are of the same type of basic data points;

[0064] Optionally, in this embodiment, before classifying each basic data point, a uniformly formatted label can be assigned to each basic data point to facilitate identification by the system during the classification process. This label can also be used as the type name for different types. The label can be composed of data corresponding to four target keywords: well name, layer name, data source, and conclusion description. For example, the label for basic data point A is the pressure test oil layer point of layer MN567 in well XY1-2-3.

[0065] Specifically, a well name can consist of several different codes. For example, the well name for basic data point B is XY1-2-3, which consists of four codes: "XY" is the depression code, "1" is the block code, "2" is the trap code, and "3" is the well point code. For different application scenarios of the standard map of the lower limit of effective thickness of oil and gas reservoirs, the same geological structural unit can be designated as the same well point, trap, block, or depression code unit. For different geological structural units, the second preset classification conditions will have different definitions. For example, if well points are chosen as the basic geological structural unit on a plane, then different basic data points with all four codes in the well name can be considered to belong to the same geological structural unit on the plane, and in the classification process, different basic data points with all four codes in the well name can be grouped into one category. If traps are chosen as the basic geological structural unit on a plane, then different basic data points with the first three codes in the well name can be considered to belong to the same geological structural unit on the plane, and in the classification process, different basic data points with the first three codes in the well name can be grouped into one category. Basic data points with completely identical codes are grouped into one category; if a block is chosen as the basic geological structural unit on the plane, then different basic data points with completely identical codes in the first two items of the well name belong to the same geological structural unit on the plane, and can be grouped into one category during the classification process; if a depression is chosen as the basic geological structural unit on the plane, then different basic data points with completely identical codes in the first item of the well name belong to the same geological structural unit on the plane, and can be grouped into one category during the classification process.

[0066] Stratigraphic names can consist of several different codes. For example, the stratigraphic name of basic data point C is MN567, which consists of four codes: "MN" is the group code, "5" is the segment code, "6" is the series code, and "7" is the sub-layer code. For different application scenarios of the standard map of the effective thickness lower limit of oil and gas reservoirs, the same stratigraphic unit can be set as the same sub-layer, series, segment, or group. However, for different stratigraphic unit compositions, the third preset classification conditions will have different definitions. For example, if the sub-layer is chosen as the basic stratigraphic unit vertically, different basic data points with identical four codes in the stratigraphic name can be considered to belong to the same stratigraphic unit vertically, and can be grouped into one category during classification. If the series is chosen as the basic stratigraphic unit vertically, different basic data points with identical first three codes in the stratigraphic name can be considered to belong to the same stratigraphic unit vertically, and can be grouped into one category during classification. Different basic data points with completely identical names are grouped into one category. Vertically, if the segment is chosen as the basic stratigraphic unit, then different basic data points with completely identical first two codes in the stratigraphic name belong to the same stratigraphic unit vertically, and can be grouped into one category during the classification process. Vertically, if the group is chosen as the basic stratigraphic unit, then different basic data points with completely identical first codes in the stratigraphic name belong to the same stratigraphic unit vertically, and can be grouped into one category during the classification process.

[0067] During the classification process, different basic data points that simultaneously meet the first, second, and third preset classification conditions can be grouped into the same type. For example, the basic data point types can be divided into 5 categories, namely "XJ2-4 Trap ZJ Group Piezometric Aqueous Layer Point", "XJ2-4 Trap ZJ Group Piezometric Oil Layer Point", "XJ2-4 Trap ZJ Group Sampling Oil Layer Point", "XJ2-4 Trap ZJ Group Sampling Aqueous Layer Point", and "XJ2-4 Trap ZJ Group Piezometric Dry Layer Point".

[0068] S205. Import different types of basic data point sets into the initial template in sequence;

[0069] Step S205 in this embodiment is the same as described above. Figure 1 Step S103 in the illustrated embodiment is similar and will not be described again here.

[0070] S206. Assign blue values ​​to the basic data point set whose conclusion description type is water layer, assign black values ​​to the basic data point set whose conclusion description type is dry layer, and assign mixed colors to the basic data point set whose conclusion description type is other layers. The mixed colors include red, yellow, green and purple. The conclusion description type includes water layer, dry layer and other layers. Other layers contain background points of non-target areas. The background points of non-target areas are the conclusion description types corresponding to basic data points that do not belong to the same geological structural unit in the plane and do not belong to the same stratigraphic unit in the vertical direction.

[0071] Optionally, in this embodiment, different types of basic data point sets can be distinguished by color according to different conclusion description types. The conclusion description type can include water layer, dry layer and other layers, and other layers can include oil layer, oil-water co-layer, oil-water layer and gas layer, and the specifics are not limited here.

[0072] Specifically, when configuring colors, six color schemes can be set, including blue, black, red, yellow, green, and purple. The red, yellow, green, and purple schemes are called mixed color schemes, and each scheme is further divided into multiple colors based on color differentiation. Specifically, when the conclusion description type of any basic data point set is water layer, all basic data points in that set are set to the blue scheme; when the conclusion description type of any basic data point set is dry layer, all basic data points in that set are set to the black scheme; when the conclusion description type of any basic data point set is oil layer, oil-water co-layer, oil-water-bearing layer, or gas layer, or other layers, all basic data points in that set are set to the mixed color scheme. In this way, by differentiating between different types of colors, the recognizability of basic data points is improved, making the standard chart of the effective thickness lower limit of oil and gas reservoirs more intuitive.

[0073] S207. Assign core-customized symbols to basic data point sets whose data source type is core; assign regular symbols to basic data point sets whose data source type is not core, including both core and non-core data.

[0074] Optionally, in this embodiment, the shape of different types of basic data point sets can be distinguished according to different data source types. The data source types include core samples and non-core samples. Non-core samples can include oil and gas well mid-way testing, pressure measurement, sampling and production. The specifics are not limited here.

[0075] Specifically, when configuring symbols, two main categories of symbol types can be set: core-customized symbols and conventional symbols. Core-customized symbols include symbols such as oil-saturated, oil-rich, oil-impregnated, oil stains, oil traces, fluorescent, and no display. Conventional symbols include symbols such as circles, squares, rhombuses, pentagrams, equilateral triangles, inverted triangles, crosses, forks, horizontal lines, and vertical lines. When the data source type of any basic data point set is core, the shape of all basic data points in that set is set to core-customized symbols; when the data source type of any basic data point set is not core, the shape of all basic data points in that set is set to conventional symbols. This allows for differentiation based on different shape types, further improving the recognizability of basic data points and making the standard chart of the effective thickness lower limit of oil and gas reservoirs more intuitive.

[0076] S208. When the conclusion description type of the basic data point set is dry layer, remove the internal fill color of the corresponding symbol of the basic data point set.

[0077] S209. When the conclusion description type of the basic data point set is a background point of a non-target area, the size and color transparency of the corresponding symbol in the basic data point set are reduced by half.

[0078] Optionally, in this embodiment, other layers in the conclusion description type may also include background points in non-target areas. Both background points in non-target areas and dry layers belong to special conclusion description types, thus allowing for special display distinctions between these two types of basic data point sets. Specifically, when the conclusion description type of the basic data point set is a dry layer, the internal fill color of the corresponding symbols in the basic data point set is eliminated, retaining only the black symbol borders. When the conclusion description type of the basic data point set is background points in non-target areas, the symbol size of the corresponding symbols in the basic data point set is reduced to half its original size, and the corresponding color transparency is reduced to half its original size. This improves the distinguishability of special types of basic data points from other basic data points, making all basic data points easier to identify.

[0079] like Figure 3 As shown, one embodiment of the apparatus for drawing the standard chart of the effective thickness lower limit of oil and gas reservoirs in this invention includes:

[0080] Unit 301 is established to extract target keyword information from the raw data and establish a standardized format basic data table based on the target keyword information. The raw data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs.

[0081] Classification unit 302 is used to classify all basic data points in the standardized format basic data table according to the target keyword information, and obtain several different types of basic data point sets;

[0082] Import unit 303 is used to import different types of basic data point sets into the initial template sequentially;

[0083] Setting unit 304 is used to set the corresponding display format of all different types of basic data point sets in the initial template according to the preset differentiation rules, so as to generate the standard map of the lower limit of effective thickness of oil and gas reservoir.

[0084] In this embodiment, the establishment unit 301 extracts target keyword information from the original data and establishes a standardized format basic data table based on the target keyword information. The original data is the basic data used to establish the lower limit standard for effective thickness of oil and gas reservoirs. The classification unit 302 classifies all basic data points in the standardized format basic data table according to the target keyword information, obtaining several different types of basic data point sets. The import unit 303 imports the different types of basic data point sets into the initial template in sequence. The setting unit 304 sets the corresponding display format of all different types of basic data point sets in the initial template according to the preset differentiation rules to generate the lower limit standard map of effective thickness of oil and gas reservoirs. In this way, the basic data points can be classified according to the target keyword information, and then the basic data points imported into the initial template can be displayed and differentiated according to different types and preset differentiation rules, realizing the drawing of the lower limit standard map of effective thickness of oil and gas reservoirs. This eliminates the need for manual classification and display differentiation, thereby reducing the labor cost of drawing the lower limit standard map of effective thickness of oil and gas reservoirs.

[0085] like Figure 4 As shown, one embodiment of the electronic device of the present invention includes:

[0086] Central processing unit 402, memory 401, input / output interface 403, wired or wireless network interface 404, and power supply 405;

[0087] Memory 401 is either a short-term storage memory or a persistent storage memory;

[0088] The central processing unit 402 is configured to communicate with the memory 401 and execute instructions stored in the memory 401 to perform the aforementioned operations. Figures 1 to 2 The steps in the illustrated embodiment.

[0089] This invention provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the aforementioned... Figures 1 to 2 The steps in the illustrated embodiment.

[0090] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A method for drawing a standard chart of the lower limit of the effective thickness of an oil and gas reservoir, characterized in that, Includes the following steps: S101. Extract target keyword information from the original data and establish a standardized format basic data table based on the target keyword information. The original data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs. S102. Classify all basic data points in the standardized format basic data table according to the target keyword information to obtain several different types of basic data point sets. S103. Import the different types of basic data point sets into the initial template in sequence; S104. Set the display format of all different types of basic data point sets in the initial template according to the preset differentiation rules to generate a standard map of the lower limit of effective thickness of oil and gas reservoirs. Step S104 includes: Based on the different types of conclusion descriptions, the basic data point set in the initial template is set with corresponding color display formats according to preset color rules; Based on the different data source types, the basic data point set in the initial template is set with corresponding symbol display formats according to preset symbol rules; The conclusion description types include water layer, dry layer, and other layers. The step of setting the corresponding color display format for the basic data point set in the initial template according to preset color rules based on the different conclusion description types includes: The basic data point set whose conclusion description type is the water layer is assigned a first color system value, the basic data point set whose conclusion description type is the dry layer is assigned a second color system value, and the basic data point set whose conclusion description is the other layer is assigned a third color system value. The data source types include core samples and non-core samples. The step of setting corresponding symbol display formats for the basic data point set in the initial template according to preset symbol rules based on different data source types includes: Core-customized symbol assignment is performed on the basic data point set whose data source type is core; conventional symbol assignment is performed on the basic data point set whose data source type is not core.

2. The drawing method according to claim 1, characterized in that, Step S102 includes: Each basic data point in the standardized format basic data table is assigned a label with a uniform format. The label contains four types of target keyword information: well name, layer name, data source, and conclusion description. Determine whether different basic data points simultaneously meet the first preset classification condition, the second preset classification condition, and the third preset classification condition. The first preset classification condition is that the data source and conclusion description in the corresponding labels of the different basic data points are consistent. The second preset classification condition is that the different basic data points belong to the same geological structural unit in the plane. The third preset classification condition is that the different basic data points belong to the same stratigraphic unit in the vertical direction. If so, determine that the different basic data points are of the same type of basic data points.

3. The drawing method according to claim 2, characterized in that, Both the well name and the stratigraphic name consist of several different codes; The different codes in the well names are used to determine whether different basic data points belong to the same geological structural unit on the plane; The different codes in the stratigraphic name are used to determine whether different basic data points belong to the same stratigraphic unit in the vertical direction.

4. The drawing method according to claim 1, characterized in that, The first color scheme is blue; the second color scheme is black; the third color scheme is a mixed color scheme, which includes red, yellow, green and purple.

5. The drawing method according to claim 1, characterized in that, The other layers contain background points in non-target areas. These background points are the conclusion description types corresponding to basic data points that do not belong to the same geological structural unit in the plane and the same stratigraphic unit in the vertical direction. The step of setting the corresponding display format of the basic data point set in the initial template according to preset color rules based on different conclusion description types also includes: When the conclusion description type of the basic data point set is dry layer, the internal fill color of the corresponding symbol of the basic data point set is removed; When the conclusion description type of the basic data point set is a background point in a non-target area, the size and color transparency of the corresponding symbol in the basic data point set are reduced by half.

6. A device for drawing a standard chart of the lower limit of the effective thickness of an oil and gas reservoir, characterized in that, include: A unit is established to extract target keyword information from the raw data and to establish a standardized format basic data table based on the target keyword information. The raw data is the basic data used to establish the lower limit standard of effective thickness of oil and gas reservoirs. The classification unit is used to classify all basic data points in the standardized format basic data table according to the target keyword information, so as to obtain several different types of basic data point sets; The import unit is used to sequentially import the different types of basic data point sets into the initial template; The setting unit is used to set the corresponding display format of all different types of basic data point sets in the initial template according to the preset differentiation rules, so as to generate the standard map of the lower limit of effective thickness of oil and gas reservoirs. The setting unit is also used to set the corresponding color display form of the basic data point set in the initial template according to the different conclusion description types; Based on the different data source types, the basic data point set in the initial template is set with corresponding symbol display formats according to preset symbol rules; The conclusion description types include water layer, dry layer, and other layers. The step of setting the corresponding color display format for the basic data point set in the initial template according to preset color rules based on the different conclusion description types includes: The basic data point set whose conclusion description type is the water layer is assigned a first color system value, the basic data point set whose conclusion description type is the dry layer is assigned a second color system value, and the basic data point set whose conclusion description is the other layer is assigned a third color system value. The data source types include core samples and non-core samples. The step of setting corresponding symbol display formats for the basic data point set in the initial template according to preset symbol rules based on different data source types includes: Core-customized symbol assignment is performed on the basic data point set whose data source type is core; conventional symbol assignment is performed on the basic data point set whose data source type is not core.

7. An electronic device, characterized in that, include: Central processing unit, memory, input / output interfaces, wired or wireless network interfaces, and power supply; The memory is either a short-term storage memory or a persistent storage memory; The central processing unit is configured to communicate with the memory and execute instructions in the memory to perform the method for drawing the standard chart of the effective thickness lower limit of oil and gas reservoirs as described in any one of claims 1 to 5.

8. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform a method for drawing a standard chart of the effective thickness lower limit of an oil and gas reservoir as described in any one of claims 1 to 5.

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