Geological stratified data interpolation calculation method

Abstract

The invention relates to the technical field of oil exploration geology research, in particular to a geological stratified data interpolation calculation method. The method comprises the steps that a target research area is determined, a plurality of reference layer position wells in the target research area are selected, the top depth and the bottom depth corresponding to each reference layer position well are obtained, and the top depths and the bottom depths of all the reference layer position wells are ranked from small to large; determining a plurality of target horizon wells in the target research area, and calculating the top depth and the bottom depth of each target horizon well according to the number of the reference horizon wells near each target horizon well in cooperation with the sequence of the top depths and the bottom depths of the reference horizon wells in combination with an equal proportion interpolation calculation method; and performing batch statistics on the top depth and the bottom depth of each target horizon well, and generating horizon data corresponding to each target horizon well in the target research area. According to the method provided by the invention, the problems that the existing interpolation calculation method must be based on the characteristic curve, and the calculation efficiency is low and the accuracy is poor when the deep layer data and the boundary well are supplemented and lost are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of petroleum exploration geology research technology, and in particular to a method for interpolating geological stratification data. Background Technology

[0002] Geological stratification refers to the process of dividing the rock strata in a stratigraphic profile of a region and establishing a stratigraphic sequence. Only by clarifying these different strata classifications can we understand the geological processes of the area at that time or in history, and guide corresponding geological exploration work. Due to drilling depth issues, some well locations exceed the drilling depth, and therefore, stratigraphic data for these extra-depth strata are often missing. When this problem occurs, interpolation calculations are usually used to supplement the missing stratigraphic wells based on the surrounding well conditions. However, conventional interpolation methods require the surrounding wells to have sufficient depth and rely on characteristic curves to meet the calculation requirements for stratigraphic interpolation, making the calculations complex and inefficient.

[0003] Among existing patented technologies, the patent titled "A Three-Dimensional Marine Environmental Data Interpolation Processing Method" (publication number CN117095134A) enables rapid interpolation of missing marine environmental data. Its principle involves establishing a three-dimensional interpolation algorithm model, taking neighboring values ​​in all directions for the missing data location, and then weighting and averaging these values ​​to obtain the average value, which serves as the data value at the missing data location, i.e., the center point. For missing data outside the center point, a partial missing data three-dimensional interpolation algorithm model is used to weight and average the values ​​at other locations. The total weighted value is dynamically calculated based on the locations involved in the calculation, ultimately achieving rapid interpolation of all marine environmental data. However, after practical operation and analysis, this method has two shortcomings when applied to supplement geological stratification data, as detailed below:

[0004] First, the method for searching missing data has limitations. The method for searching missing data in this patent is to search for the nearest values ​​in each direction of the missing location. However, when searching for well stratification data in an oil field, it is necessary to follow the well network design distance and search in a specified order, otherwise omissions will occur.

[0005] Secondly, the data supplementation method is relatively complex and computationally inefficient. The patent requires weighted averaging of data from multiple neighboring locations based on the algorithm model, and the total weight needs to be dynamically calculated in real time. While this method can improve data accuracy when supplementing a small number of missing data points, its efficiency deteriorates when there are many missing data points requiring large-scale calculations. Therefore, to address these shortcomings, a geological stratification data interpolation method is proposed. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] This invention provides a geological stratification data interpolation calculation method to overcome the problems of existing interpolation methods, which require sufficient well depth and characteristic curves to meet the calculation requirements for stratification interpolation, and are complex, prone to omissions, and inefficient.

[0008] (II) Technical Solution

[0009] To address the above problems, this invention provides a method for interpolating geological stratification data, comprising:

[0010] Step S1: Determine the target study area, select multiple reference stratigraphic wells within the target study area, and obtain the top depth and bottom depth of each reference stratigraphic well. Sort the top depth and bottom depth of each reference stratigraphic well in ascending order.

[0011] Step S2: Determine multiple target stratigraphic wells within the target study area determined in Step S1. Based on the number of reference stratigraphic wells near each target stratigraphic well, and in conjunction with the order of the top and bottom depths of the reference stratigraphic wells determined in Step S1, calculate the top and bottom depths of each target stratigraphic well using the proportional interpolation method.

[0012] Step S3: Batch statistically analyze the top and bottom depths of each target layer well obtained in step S2, and generate the layer data corresponding to each target layer well in the target study area determined in step S1.

[0013] Preferably, in step S1, the reference stratigraphic well is a developed stratigraphic well within the target study area, and the reference stratigraphic well data is historical stratigraphic data of the developed stratigraphic well.

[0014] Preferably, in step S2, the target well is an undeveloped well within the target study area.

[0015] Preferably, in step S2, the number of reference stratigraphic wells includes 2, 3, and n.

[0016] Preferably, when the number of reference stratigraphic wells is two, they are a first reference stratigraphic well and a second reference stratigraphic well, respectively. The top depth of the first reference stratigraphic well is less than the top depth of the second reference stratigraphic well. The formula for calculating the top depth of the target stratigraphic well is as follows:

[0017]

[0018] In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [x] The top depth of the well at the target formation.

[0019] Preferably, when the number of reference stratigraphic wells is two, they are a first reference stratigraphic well and a second reference stratigraphic well, respectively. The bottom depth of the first reference stratigraphic well is less than the bottom depth of the second reference stratigraphic well. The formula for calculating the bottom depth of the target stratigraphic well is as follows:

[0020]

[0021] In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [x] The bottom depth of the well at the target formation.

[0022] Preferably, when the number of reference stratigraphic wells is three, they are a first reference stratigraphic well, a second reference stratigraphic well, and a third reference stratigraphic well. The top depth of the first reference stratigraphic well is less than the top depth of the second reference stratigraphic well, and the top depth of the second reference stratigraphic well is less than the top depth of the third reference stratigraphic well. The formula for calculating the top depth of the target stratigraphic well is as follows:

[0023]

[0024] In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [1][2] For Top [1] and Top [2] The middle depth value; Top [3] The top depth of the third reference stratigraphic well; Top [2][3] For Top [2] and Top [3] The middle depth value; Top [x] The top depth of the well at the target formation.

[0025] Preferably, when the number of reference wells is three, they are a first reference well, a second reference well, and a third reference well. The bottom depth of the first reference well is less than the bottom depth of the second reference well, and the bottom depth of the second reference well is less than the bottom depth of the third reference well. The formula for calculating the bottom depth of the target well is:

[0026]

[0027] In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [1][2] For Bot [1] and Bot [2]The intermediate depth value; Bot [3] The bottom depth of the third reference formation well; Bot [2][3] For Bot [2] and Bot [3] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

[0028] Preferably, when the number of reference stratigraphic wells is n, they are respectively the first reference stratigraphic well, the second reference stratigraphic well, the third reference stratigraphic well, ..., the (n-1)th reference stratigraphic well and the nth reference stratigraphic well. The top depth of the first reference stratigraphic well is less than the top depth of the second reference stratigraphic well, the top depth of the second reference stratigraphic well is less than the top depth of the third reference stratigraphic well, ..., the top depth of the (n-1)th reference stratigraphic well is less than the top depth of the nth reference stratigraphic well. The formula for calculating the top depth of the target stratigraphic well is:

[0029]

[0030] In the formula, Top [n] The top depth of the nth reference stratigraphic well; Top [n-1] The top depth of the (n-1)th reference well; Top [n-1][n] For Top [n-1] and Top [n] The middle depth value; Top [n-2][n-1] For Top [n-2] and Top [n-1] The middle depth value; Top [x] The top depth of the well at the target formation.

[0031] Preferably, when the number of reference wells is n, and there are n reference wells, they are respectively the first reference well, the second reference well, the third reference well, ..., the (n-1)th reference well and the nth reference well. The bottom depth of the first reference well is less than the bottom depth of the second reference well, the bottom depth of the second reference well is less than the bottom depth of the third reference well, ..., the bottom depth of the (n-1)th reference well is less than the bottom depth of the nth reference well. The formula for calculating the bottom depth of the target well is:

[0032]

[0033] In the formula, Bot [n] The bottom depth of the nth reference formation well; Bot [n-1] The bottom depth of the (n-1)th reference formation well; Bot [n-1][n] For Bot [n-1] and Bot [n]The intermediate depth value; Bot [n-2][n-1] For Bot [n-2] and Bot [n-1] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

[0034] (III) Beneficial Effects

[0035] The geological stratification data interpolation calculation method provided by this invention follows the well network layout and actual subsurface stratification in oilfields. Based on the well layout rules in the reverse nine-point water injection method, it is a rapid interpolation calculation method that can quickly supplement the geological stratification data of missing wells in any formation without the need for characteristic curves. It has high calculation efficiency and high data accuracy, and can provide important reference for reservoir geological research. Attached Figure Description

[0036] Figure 1 This is a flowchart of the geological stratification data interpolation calculation method according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram illustrating the interpolation situation where two layered wells exist around an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram illustrating the interpolation situation where three layered wells exist around an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram illustrating the interpolation situation where four layered wells exist around an embodiment of the present invention. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Figure 1 This is a flowchart of the geological stratification data interpolation calculation method according to an embodiment of the present invention, as shown below. Figure 1 As shown, this invention provides a method for interpolating geological stratification data, specifically including:

[0042] Step S1: Determine the target study area, select multiple reference stratigraphic wells within the target study area, and obtain the top depth and bottom depth of each reference stratigraphic well. Sort the top depth and bottom depth of each reference stratigraphic well in ascending order.

[0043] Step S2: Determine multiple target stratigraphic wells within the target study area determined in Step S1. Based on the number of reference stratigraphic wells near each target stratigraphic well, and in conjunction with the order of the top and bottom depths of the reference stratigraphic wells determined in Step S1, calculate the top and bottom depths of each target stratigraphic well using the proportional interpolation method.

[0044] Step S3: Batch statistically analyze the top and bottom depths of each target layer well obtained in step S2, and generate the layer data corresponding to each target layer well in the target study area determined in step S1.

[0045] In this calculation method, in step S1, the reference stratigraphic well is the developed stratigraphic well in the target study area, and the reference stratigraphic well data is the historical stratigraphic data of the developed stratigraphic well.

[0046] In practical applications, in step S2, the target well is an undeveloped well within the target study area, and the number of reference wells near the target well includes 2, 3, and n.

[0047] In this calculation method, when there are two reference wells, namely the first reference well and the second reference well, the top depth of the first reference well is less than the top depth of the second reference well. The formula for calculating the top depth of the target well is as follows:

[0048]

[0049] In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [x] The top depth of the well at the target formation.

[0050] In practical applications, when there are two reference wells, namely the first reference well and the second reference well, the bottom depth of the first reference well is less than the bottom depth of the second reference well. The formula for calculating the bottom depth of the target reference well is as follows:

[0051]

[0052] In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [x] The bottom depth of the well at the target formation.

[0053] In this calculation method, when the number of reference wells is 3, they are the first reference well, the second reference well, and the third reference well. The top depth of the first reference well is less than the top depth of the second reference well, and the top depth of the second reference well is less than the top depth of the third reference well. The formula for calculating the top depth of the target well is:

[0054]

[0055] In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [1][2] For Top [1] and Top [2] The middle depth value; Top [3] The top depth of the third reference stratigraphic well; Top [2][3] For Top [2] and Top [3] The middle depth value; Top [x] The top depth of the well at the target formation.

[0056] In practical applications, when there are three reference wells, namely the first reference well, the second reference well, and the third reference well, the bottom depth of the first reference well is less than that of the second reference well, and the bottom depth of the second reference well is less than that of the third reference well. The formula for calculating the bottom depth of the target reference well is as follows:

[0057]

[0058] In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [1][2] For Bot [1] and Bot [2] The intermediate depth value; Bot [3] The bottom depth of the third reference formation well; Bot [2][3] For Bot [2] and Bot [3] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

[0059] In this calculation method, when the number of reference wells is n, they are the first reference well, the second reference well, the third reference well, ..., the (n-1)th reference well and the nth reference well. The top depth of the first reference well is less than the top depth of the second reference well, the top depth of the second reference well is less than the top depth of the third reference well, ..., the top depth of the (n-1)th reference well is less than the top depth of the nth reference well. The formula for calculating the top depth of the target well is:

[0060]

[0061] In the formula, Top [n] The top depth of the nth reference stratigraphic well; Top [n-1] The top depth of the (n-1)th reference well; Top [n-1][n] For Top [n-1] and Top [n] The middle depth value; Top [n-2][n-1] For Top [n-2] and Top [n-1] The middle depth value; Top [x] The top depth of the well at the target formation.

[0062] In practical applications, when there are n reference wells, designated as the first, second, third, ..., (n-1)th, and nth reference wells, the bottom depth of the first reference well is less than that of the second, the bottom depth of the second is less than that of the third, ..., (n-1)th, and the bottom depth of the nth reference well is less than that of the nth reference well. The formula for calculating the bottom depth of the target reference well is:

[0063]

[0064] In the formula, Bot [n] The bottom depth of the nth reference formation well; Bot [n-1] The bottom depth of the (n-1)th reference formation well; Bot [n-1][n] For Bot [n-1] and Bot [n] The intermediate depth value; Bot [n-2][n-1] For Bot [n-2] and Bot [n-1] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

[0065] This invention provides a geological stratification data interpolation method that follows the well network layout and actual subsurface stratification in oilfields. Based on the well layout rules of the inverse nine-point water injection method, it is a rapid interpolation method that can quickly supplement missing geological stratification data of any formation without the need for characteristic curves. It boasts high computational efficiency and high data accuracy, providing important reference for reservoir geological research. The working principle of this geological stratification data interpolation method is described in detail below:

[0066] Step 1: Determine the target study area, select multiple reference wells within the target study area, and obtain the top and bottom depths of each reference well. Sort the top and bottom depths of each reference well in ascending order.

[0067] In this embodiment, a target study area is determined, and multiple reference stratigraphic wells within the target study area are selected. The stratigraphic data corresponding to each reference stratigraphic well is obtained and sorted from smallest to largest.

[0068] Step 2: Identify multiple target stratigraphic wells within the target study area. Based on the number of reference stratigraphic wells near each target stratigraphic well, and in accordance with the order of the top and bottom depths of the reference stratigraphic wells, calculate the top and bottom depths of each target stratigraphic well using the proportional interpolation method.

[0069] In this embodiment, as Figure 2 As shown, if there are two reference wells near the target well, such as Well_2, and two wells with known stratigraphic data, Nwell_5 and Nwell_6, where Nwell_5 has a top depth of 1800 meters and a bottom depth of 1900 meters, and Nwell_6 has a top depth of 1940 meters and a bottom depth of 2140 meters, the top depth of Well_2, Well_2_Top, is calculated using a proportional interpolation algorithm as follows:

[0070]

[0071] The calculated value of well_2_Top is 1867 meters.

[0072] The method for calculating the bottom depth Well_2_Bot of Well_2 is as follows;

[0073]

[0074] The calculated value of Well_2_Bot is 2013 meters.

[0075] In this embodiment, as Figure 3As shown, if there are 3 reference wells near the target well, such as Well_4 surrounded by three wells with known stratigraphic data: Nwell_9, Nwell_10, and Nwell_11, where Nwell_9 has a top depth of 2000 meters and a bottom depth of 2200 meters, Nwell_10 has a top depth of 2500 meters and a bottom depth of 3000 meters, and Nwell_11 has a bottom depth of 1500 meters and a bottom depth of 1600 meters, then these three wells are sorted by their top and bottom depths: top depth 1500 meters, 2000 meters, 2500 meters; bottom depth 1600 meters, 2200 meters, 3000 meters. Using a proportional interpolation algorithm, the top depth of Well_4, Well_4_Top, is calculated as follows:

[0076] a. Based on Nwell_11 with a top depth of 1500 meters and Nwell_9 with a top depth of 2000 meters, calculate well_4_Top_1 proportionally:

[0077]

[0078] The calculated value of Well_4_Top_1 is 1714 meters.

[0079] b. Based on Nwell_9 with a top depth of 2000 meters and Nwell_10 with a top depth of 2500 meters, calculate well_4_Top_2 proportionally:

[0080]

[0081] The calculated value of Well_4_Top_2 is 2222 meters.

[0082] c. Based on well_4_Top_1 with a top depth of 1714 meters and well_4_Top_2 with a top depth of 2222 meters, calculate Well_4_Top proportionally:

[0083]

[0084] The calculated Well_4_Top is 1935 meters.

[0085] Similarly, the calculation method for the bottom depth of Well_4_Bot is as follows:

[0086] a. Based on Nwell_11 with a bottom depth of 1600 meters and Nwell_9 with a bottom depth of 2200 meters, calculate well_4_Bot_1 proportionally:

[0087]

[0088] The calculated value of well_4_Bot_1 is 1853 meters.

[0089] b. Based on Nwell_9 with a bottom depth of 2200 meters and Nwell_10 with a bottom depth of 3000 meters, calculate Well_4_Bot_2 proportionally:

[0090]

[0091] The calculated value of well_4_Bot_2 is 2538 meters.

[0092] c. Based on Well_4_Bot_1 with a bottom depth of 1853 meters and Well_4_Bot_2 with a bottom depth of 2538 meters, calculate Well_4_Bot proportionally:

[0093]

[0094] The calculated value of well_4_Bot is 2142 meters.

[0095] In this embodiment, as Figure 4 As shown, if the number of reference wells near the target well is 4, such as Figure 4 As shown, there are four wells with known strata surrounding Well_1: NWell_1, NWell_2, NWell_3, and NWell_4. Well NWell_1 has a top depth of 1240 meters and a bottom depth of 1300 meters; Well NWell_2 has a top depth of 1350 meters and a bottom depth of 1460 meters; Well NWell_3 has a top depth of 1480 meters and a bottom depth of 1520 meters; and Well NWell_4 has a top depth of 1560 meters and a bottom depth of 1870 meters. Ranking these four wells, their top depths are 1240 meters, 1350 meters, 1480 meters, and 1560 meters, and their bottom depths are 1300 meters, 1460 meters, 1520 meters, and 1870 meters.

[0096] According to the proportional interpolation algorithm, the top depth Well_1_Top of Well_1 is calculated as follows:

[0097] a. First, based on Nwell_1 with a top depth of 1240 meters and Nwell_2 with a top depth of 1350 meters, calculate Well_1_Top_1 proportionally:

[0098]

[0099] The calculated Well_1_Top_1 is 1293 meters.

[0100] b. Based on Nwell_2 with a top depth of 1350 meters and Nwell_3 with a top depth of 1480 meters, calculate Well_1_Top_2 proportionally:

[0101]

[0102] The calculated value of Well_1_Top_2 is 1412 meters.

[0103] c. Based on Nwell_3 with a top depth of 1480 meters and Nwell_4 with a top depth of 1560 meters, calculate Well_1_Top_3 proportionally:

[0104]

[0105] The calculated value of Well_1_Top_3 is 1519 meters.

[0106] d. Based on Well_1_Top_1 with a top depth of 1293 meters and Well_1_Top_2 with a top depth of 1412 meters, calculate Well_1_Top_12 proportionally:

[0107]

[0108] The calculated value of Well_1_Top_12 is 1349 meters.

[0109] e. Based on Well_1_Top_2 with a top depth of 1412 meters and Well_1_Top_3 with a top depth of 1519 meters, calculate Well_1_Top_23 proportionally:

[0110]

[0111] The calculated value of Well_1_Top_23 is 1464 meters.

[0112] f. Then, based on Well_1_Top_12 with a top depth of 1350 meters and Well_1_Top_23 with a top depth of 1464 meters, calculate Well_1_Top proportionally:

[0113]

[0114] Ultimately, Well_1_Top was calculated to be 1405 meters.

[0115] Similarly, according to the proportional interpolation algorithm, the bottom depth Well_1_Bot of Well_1 is calculated as follows:

[0116] a. First, based on Nwell_1 with a bottom depth of 1300 meters and Nwell_2 with a bottom depth of 1460 meters, calculate Well_1_Bot_1 proportionally:

[0117]

[0118] The calculated value of Well_1_Bot_1 is 1375 meters.

[0119] b. Based on Nwell_2 with a bottom depth of 1460 meters and Nwell_3 with a bottom depth of 1520 meters, calculate Well_1_Bot_2 proportionally:

[0120]

[0121] The calculated value of Well_1_Bot_2 is 1490 meters.

[0122] c. Based on Nwell_3 with a bottom depth of 1520 meters and Nwell_4 with a bottom depth of 1870 meters, calculate Well_1_Bot_3 proportionally:

[0123]

[0124] The calculated value of Well_1_Bot_3 is 1677 meters.

[0125] d. Based on Well_1_Bot_1 with a bottom depth of 1375 meters and Well_1_Bot_2 with a bottom depth of 1490 meters, calculate Well_1_Bot_12 proportionally:

[0126] The calculated value of Well_1_Bot_12 is 1430 meters.

[0127] e. Based on Well_1_Bot_2 with a bottom depth of 1490 meters and Well_1_Bot_3 with a bottom depth of 1667 meters, calculate Well_1_Bot_23 proportionally:

[0128]

[0129] The calculated value of Well_1_Bot_23 is 1480 meters.

[0130] f. Finally, based on Well_1_Bot_12 with a bottom depth of 1430 meters and Well_1_Bot_23 with a bottom depth of 1480 meters, the value of Well_1_Bot is calculated proportionally:

[0131]

[0132] The calculated value of Well_1_Bot is 1455 meters.

[0133] Step 3: Batch statistical analysis of the top and bottom depths of each target layer well to generate the corresponding layer data for each target layer well within the target study area.

[0134] In this embodiment, according to the above-described proportional interpolation calculation method, the stratigraphic data of other missing stratified data wells are generated in batches.

[0135] The geological stratification data interpolation calculation method provided by this invention not only has a wide range of applications, but also overcomes the problem that existing technologies rely too much on characteristic curves, and cannot complete or have low accuracy in completing stratification data for deep layers and block boundaries, ensuring the integrity of single-well subsurface data and facilitating the comparison between seismic profiles and well-connected profiles; moreover, it has high supplementation efficiency. Through the proportional rapid interpolation calculation method, it can quickly supplement geological stratification data of missing wells under any stratum in batches, with a calculation efficiency more than 24 times higher than other stratification methods.

[0136] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A method for interpolating geological stratification data, characterized in that, include: Step S1: Determine the target study area, select multiple reference stratigraphic wells within the target study area, and obtain the top depth and bottom depth of each reference stratigraphic well. Sort the top depth and bottom depth of each reference stratigraphic well in ascending order. Step S2: Determine multiple target stratigraphic wells within the target study area determined in Step S1. Based on the number of reference stratigraphic wells near each target stratigraphic well, and in conjunction with the order of the top and bottom depths of the reference stratigraphic wells determined in Step S1, calculate the top and bottom depths of each target stratigraphic well using the proportional interpolation method. Step S3: Batch statistically analyze the top and bottom depths of each target layer well obtained in step S2, and generate the layer data corresponding to each target layer well in the target study area determined in step S1.

2. The geological stratification data interpolation calculation method according to claim 1, characterized in that, In step S1, the reference well is a well that has been developed within the target study area.

3. The geological stratification data interpolation calculation method according to claim 1, characterized in that, In step S2, the target well is an undeveloped well within the target study area.

4. The geological stratification data interpolation calculation method according to claim 1, characterized in that, In step S2, the number of reference stratigraphic wells includes 2, 3, and n.

5. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is two, they are the first reference well and the second reference well, respectively. The top depth of the first reference well is less than the top depth of the second reference well. The formula for calculating the top depth of the target well is: In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [x] The top depth of the well at the target formation.

6. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is two, they are the first reference well and the second reference well, respectively. The bottom depth of the first reference well is less than the bottom depth of the second reference well. The formula for calculating the bottom depth of the target well is: In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [x] The bottom depth of the well at the target formation.

7. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is three, they are designated as the first reference well, the second reference well, and the third reference well. The top depth of the first reference well is less than the top depth of the second reference well, and the top depth of the second reference well is less than the top depth of the third reference well. The formula for calculating the top depth of the target well is as follows: In the formula, Top [1] The top depth of the first reference stratigraphic well; Top [2] The top depth of the second reference stratigraphic well; Top [1][2] For Top [1] and Top [2] The middle depth value; Top [3] The top depth of the third reference stratigraphic well; Top [2][3] For Top [2] and Top [3] The middle depth value; Top [x] The top depth of the well at the target formation.

8. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is three, they are designated as the first reference well, the second reference well, and the third reference well. The bottom depth of the first reference well is less than the bottom depth of the second reference well, and the bottom depth of the second reference well is less than the bottom depth of the third reference well. The formula for calculating the bottom depth of the target well is as follows: In the formula, Bot [1] The bottom depth of the first reference formation well; Bot [2] This refers to the bottom depth of the second reference formation well; Bot [1][2] For Bot [1] and Bot [2] The intermediate depth value; Bot [3] The bottom depth of the third reference formation well; Bot [2][3] For Bot [2] and Bot [3] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

9. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is n, they are respectively the first reference well, the second reference well, the third reference well, ..., the (n-1)th reference well and the nth reference well. The top depth of the first reference well is less than the top depth of the second reference well, the top depth of the second reference well is less than the top depth of the third reference well, ..., the top depth of the (n-1)th reference well is less than the top depth of the nth reference well. The formula for calculating the top depth of the target well is: In the formula, Top [n] The top depth of the nth reference stratigraphic well; Top [n-1] The top depth of the (n-1)th reference well; Top [n-1][n] For Top [n-1] and Top [n] The middle depth value; Top [n-2][n-1] For Top [n-2] and Top [n-1] The middle depth value; Top [x] The top depth of the well at the target formation.

10. The geological stratification data interpolation calculation method according to claim 4, characterized in that, When the number of reference wells is n, and there are n reference wells, namely the first reference well, the second reference well, the third reference well, ..., the (n-1)th reference well and the nth reference well, the bottom depth of the first reference well is less than the bottom depth of the second reference well, the bottom depth of the second reference well is less than the bottom depth of the third reference well, ..., the bottom depth of the (n-1)th reference well is less than the bottom depth of the nth reference well. The formula for calculating the bottom depth of the target well is: In the formula, Bot [n] The bottom depth of the nth reference formation well; Bot [n-1] The bottom depth of the (n-1)th reference formation well; Bot [n-1][n] For Bot [n-1] and Bot [n] The intermediate depth value; Bot [n-2][n-1] For Bot [n-2] and Bot [n-1] The intermediate depth value; Bot [x] The bottom depth of the well at the target formation.

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