Method and device for optimizing horizontal directional drilling position of mining collapse stratum

Abstract

The invention provides an optimal selection method and device for a horizontal directional drilling layer position of a mining collapse stratum, and relates to the technical field of stratum directional drilling. The optimal selection method for the horizontal directional drilling layer position of the mining collapse stratum comprises the steps that an influence index list of horizontal directional drilling efficiency is obtained, the influence index list comprises at least one of a geological condition factor, a mining condition factor, a physical property index factor and a constraint index factor; obtaining related index data of the drilling efficiency according to the influence index list; and an evaluation model is constructed based on the related index data, and an optimal scheme of the horizontal directional drilling layer position of the mining collapse stratum is obtained based on the evaluation model, so that the purpose of scientifically and reasonably designing the horizontal hole layer position of the mining collapse stratum is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of stratum directional drilling, and in particular to a method and device for optimizing the layer position of horizontal directional drilling in mining-induced subsidence strata. Background Art

[0002] Directional drilling technology has been widely used in natural oil development, shale gas (coalbed methane) extraction, and mine aquifer grouting transformation due to its unique technical advantages such as little influence from surface topography and objects, high control accuracy of drilling target layer, wide detection range, and controllable drilling process trajectory. If directional horizontal drilling is used instead of ground vertical drilling, the horizontal section of the borehole can be continuously drilled along the goaf subsidence stratum, greatly reducing the ineffective drilling footage. Compared with ground vertical drilling, its borehole utilization rate will be increased by more than 10 times, and there is no need for a large amount of temporary land acquisition and construction of construction access roads, and it is not affected by existing buildings (structures) on the ground, effectively reducing the impact of the governance project on the ecological environment, reducing project investment and construction safety risks. It can be predicted that the use of horizontal directional drilling to grout and reinforce the mining strata in the goaf subsidence area (goaf area) will become an inevitable trend in the development of goaf governance technology and a new economic growth point.

[0003] When drilling in mining formations, drilling flushing fluid will inevitably leak, resulting in difficulties in signal transmission of measurement instruments while drilling, difficulty in accurately controlling the drilling trajectory, and prone to well accidents such as hole collapse, drill sticking, and drill burial. However, for grouting in mining formations, it is necessary to design horizontal hole sections in areas with densely developed fractures in the mining formations to increase the diffusion radius and filling rate of grouting filling. Therefore, scientific and reasonable design of horizontal hole positions in mining formations is a key technology in this technical system. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, the first purpose of the present application is to propose a method for optimizing the position of horizontal directional drilling in mining-induced subsided strata, so as to achieve the purpose of scientifically and rationally designing the position of horizontal holes in mining-induced strata.

[0006] The second purpose of the present application is to provide a device for optimizing the layer position for horizontal directional drilling in mining-induced subsidence strata.

[0007] The third objective of the present application is to provide an electronic device.

[0008] A fourth objective of the present application is to provide a computer-readable storage medium.

[0009] A fifth object of the present application is to provide a computer program product.

[0010] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a method for optimizing the layer position of horizontal directional drilling in a mining-induced subsidence formation, comprising:

[0011] Obtaining a list of influencing indicators of horizontal directional drilling efficiency, wherein the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors, and constraint index factors;

[0012] According to the influencing index list, obtain relevant index data of drilling efficiency;

[0013] An evaluation model is constructed based on the relevant indicator data, and a preferred solution for horizontal directional drilling of mining-induced subsidence formations is obtained based on the evaluation model.

[0014] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a device for optimizing the layer position of horizontal directional drilling in mining-induced subsidence formations, comprising:

[0015] A first acquisition module is used to acquire a list of influencing indicators of horizontal directional drilling efficiency, wherein the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors and constraint index factors;

[0016] A second acquisition module is used to acquire relevant indicator data of drilling efficiency according to the influencing indicator list;

[0017] The third acquisition module is used to construct an evaluation model based on the relevant indicator data, and to obtain a preferred solution for horizontal directional drilling of mining-induced subsidence formations based on the evaluation model.

[0018] To achieve the above-mentioned purpose, the third aspect of the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0019] The memory stores computer-executable instructions;

[0020] The processor executes the computer-executable instructions stored in the memory to implement the method described in the embodiment of the first aspect.

[0021] To achieve the above-mentioned purpose, the fourth aspect embodiment of the present application proposes a computer-readable storage medium, in which computer-readable storage medium is stored computer execution instructions, and when the computer execution instructions are executed by a processor, they are used to implement the method described in the first aspect embodiment.

[0022] To achieve the above-mentioned purpose, the fifth aspect of the present application proposes a computer program product, including a computer program, which implements the method described in the first aspect when executed by a processor.

[0023] The method and device for optimizing the horizontal directional drilling position in the mining-affected subsidence stratum provided in the present application obtain detailed and comprehensive relevant indicator data through a list of influencing indicators, and construct an evaluation model based on indicator data of four aspects: geological conditions, mining conditions, physical indicators and constraint indicators. The most optimal solution is obtained according to the evaluation model, and the optimization of the horizontal directional drilling position solution in the mining-affected stratum is achieved, providing a more scientific and reasonable basis for the design and construction of directional drilling.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 A schematic flow chart of a method for optimizing the layer position of horizontal directional drilling in a mining-induced subsidence formation provided in an embodiment of the present application;

[0027] Figure 2 A schematic flow chart of another method for optimizing the layer position of horizontal directional drilling in mining-induced subsidence strata provided in an embodiment of the present application;

[0028] Figure 3 An inversion flow chart provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a drilling casing structure provided in an embodiment of the present application;

[0030] Figure 5 A hierarchical analysis framework diagram provided in an embodiment of the present application;

[0031] Figure 6 A schematic structural diagram of a device for optimizing the layer position for horizontal directional drilling in mining-induced subsidence strata provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] The following describes the method and device for optimizing the layer position for horizontal directional drilling in mining-induced subsidence formations according to an embodiment of the present application with reference to the accompanying drawings.

[0034] Figure 1The present invention provides a flowchart of a method for optimizing the position of a horizontal directional drilling in a mining-induced subsidence formation. Figure 1 As shown, the method comprises the following steps:

[0035] S101, obtaining a list of influencing indicators of horizontal directional drilling efficiency.

[0036] It can be understood that the influencing index list includes one or more influencing factors, which are related to the horizontal directional drilling efficiency. The horizontal directional drilling efficiency can determine the preferred information of the horizontal directional drilling layer. The higher the efficiency, the more likely it is to be the preferred drilling plan.

[0037] Optionally, the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors and constraint index factors; geological condition factors include at least one of stratum structure, stratum lithology, stratum occurrence, rock compressive strength and rock integrity index; mining condition factors include at least one of goaf burial depth, mining height, three-zone development height and groundwater occurrence; physical property index factors include at least one of stratum fracture density, permeability, saturation, porosity, density, slurry loss, lithology recovery rate and rock quality index; constraint index factors include the distance between the drilling stratum and the goaf bottom plate.

[0038] Stratigraphic structure refers to the composition, arrangement and relationship of strata, including the sequence, thickness, lithology changes and contact relationship between strata; lithology refers to the rock properties of strata, including the composition, structure, texture, physical and chemical properties of rocks. Different rocks have different lithologies, such as hardness, compressive strength, shear strength, permeability, etc.; stratigraphic occurrence refers to the spatial position and shape of strata in the earth's crust, including the strike, dip, inclination, thickness and distribution of strata; rock compressive strength refers to the ability of rocks to resist destruction under unidirectional compression loads; rock integrity index is a quantitative indicator used to describe the integrity of rock mass.

[0039] The buried depth of the goaf refers to the depth of the top of the goaf, that is, the vertical distance from the ground surface to the top of the goaf; the mining height in coal seam mining refers to the distance difference between the upper re-mining and the lower normal mining; the three-zone development height refers to the development height of the collapse zone, the fracture zone, and the subsidence zone; groundwater occurrence refers to the storage state of groundwater underground. The area and depth of groundwater occurrence have an important impact on geological exploration, hydrogeological analysis, and the development and utilization of groundwater resources.

[0040] Formation fracture density refers to the description of the number and distribution of fractures in geological rock masses; permeability is directly related to the permeability of soil and rock formations, which in turn affects the flow, recharge, discharge and availability of groundwater; saturation in geology usually refers to the relative volume of pores occupied by oil and gas in the pores; porosity is the ratio of the pore volume in the rock to the total rock volume; density usually refers to the ratio of the mass of a substance to its volume; slurry loss refers to the amount of slurry lost into the formation during drilling; lithology sampling rate refers to the ratio of the actual core length taken to the core length that should be taken in geological exploration or engineering construction; Rock Quality Designation (RQD) is a comprehensive indicator used to evaluate rock quality. It is usually calculated based on the core sampling rate and the integrity of the core. The higher the RQD, the better the rock quality.

[0041] The constraint index factor, the distance between the drilling stratum and the bottom plate of the goaf, refers to the minimum distance that the borehole needs to continue drilling into the bottom plate after penetrating the full thickness of the coal seam during the drilling process. This distance is clearly stipulated in the coal mine safety regulations. Therefore, this distance is used as a constraint index factor to ensure the effectiveness and safety of drilling.

[0042] S102, obtaining relevant indicator data of drilling efficiency according to the list of influencing indicators.

[0043] In some implementations, each indicator factor may be obtained according to the influencing indicator list, so that all indicator factors in the obtained influencing indicator list are used as relevant indicator data of drilling efficiency.

[0044] Optionally, relevant indicator data may be acquired through exploration methods such as geological survey, field drilling, well logging, and inversion deduction.

[0045] S103, constructing an evaluation model based on relevant indicator data, and obtaining a preferred solution for horizontal directional drilling of mining-induced subsidence formations based on the evaluation model.

[0046] Optionally, the evaluation model can be a model constructed by the hierarchical analysis method or a model trained by a neural network. Through relevant indicator data and the evaluation model, the optimal solution for horizontal directional drilling positions in mining-induced subsidence formations can be obtained, thereby achieving the purpose of scientifically and rationally designing horizontal hole positions in mining-induced formations.

[0047] In this embodiment, detailed and comprehensive relevant indicator data are obtained based on the influencing indicator list, and an evaluation model is constructed based on the indicator data of geological conditions, mining conditions, physical properties and constraint indicators. Thus, the most optimal scheme is obtained according to the evaluation model, and the optimization of the horizontal directional drilling layer scheme in the mined stratum is achieved, providing a more scientific and reasonable basis for directional drilling design and construction.

[0048] Figure 2 This is a flow chart of another method for optimizing the position of horizontal directional drilling in mining-induced subsidence strata provided in an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0049] S201, obtaining a list of influencing indicators of horizontal directional drilling efficiency.

[0050] In the embodiment of the present application, the implementation method of step S201 can be implemented by any of the methods in the embodiments of the present disclosure, which is not limited here and will not be repeated.

[0051] S202, obtaining relevant indicator data of drilling efficiency according to the list of influencing indicators.

[0052] It can be understood that, in this embodiment, all indicator data in the influencing indicator list are obtained, and all indicator data are used as relevant indicator data of drilling efficiency.

[0053] In some implementations, well logging data can be obtained through geophysical well logging, seismic data can be obtained through seismic exploration, and geological data can be obtained through geological drilling; joint inversion is performed based on well logging data, geological data, and seismic data, and inversion is performed using theoretical derivation, well logging constraint inversion, data mining and reconstruction technology, intersection diagrams, and other methods to obtain formation fracture density, permeability, saturation, porosity, and density in the physical property index factors; the inversion process is as follows Figure 3 As shown in the figure, data standardization is performed based on the logging data in the logging data, and wavelets are estimated in combination with the seismic data in the seismic data and the geological data in the geological data to produce synthetic seismic records, and the degree of agreement between the synthetic seismic records and the seismic records is judged. If the agreement is low, the time-depth relationship is adjusted to adjust the synthetic seismic records, and the degree of agreement between the synthetic seismic records and the seismic records is judged again; if the agreement is high, the seismic wave group calibration, seismic record fine interpretation, low-frequency model construction, wave impedance inversion and formation prediction and other processes are performed; through the calibration of seismic interpretation sequences and interpretation target layers, extraction of seismic wavelets, correction of residual phases, deconvolution processing, interpretation of seismic reflection sequences and establishment of initial models, logging constrained inversion and output of inversion results, the inversion results can be used to predict reservoirs, thereby obtaining the formation fracture density, permeability, saturation, porosity and density in the physical property index factors.

[0054] In some implementations, a geological survey can be conducted on the goaf to obtain the stratum structure, stratum lithology, stratum occurrence, rock compressive strength, rock integrity index in the geological condition factors, and the slurry loss, lithology recovery rate, and rock quality index in the physical property index factors; on-site drilling can be conducted on the goaf to obtain the goaf burial depth, mining height, three-zone development height, groundwater occurrence in the mining condition factors, and the distance between the drilled stratum and the goaf floor in the constraint index factors.

[0055] For example, geological survey and on-site drilling can be obtained by engineering geological drilling, geophysical logging, in-hole digital imaging and seismic exploration. Engineering geological drilling is to drill holes for geological exploration in the area where horizontal directional drilling and grouting reinforcement are planned to be carried out. Through the description of flushing fluid consumption, slurry leakage, lithology recovery rate, lithology quality index RQD, drilling speed, drill drop, drill sticking, blowing and suction during drilling, the formation structure, formation lithology, formation occurrence, rock compressive strength, rock integrity index, groundwater conditions and groundwater occurrence in the goaf area are found out; the drilling adopts a two-opening wellbore structure, such as Figure 4 As shown in the figure, the first opening is φ190mm, and the drilling reaches the Quaternary system and enters the bedrock 5 to 10m. The φ168mm casing is lowered in the whole section and cement slurry is used to fix the pipe; the second opening is φ150mm, and the drilling reaches the final hole depth. The φ127mm casing is lowered in the whole hole section and cement slurry is used to fix the pipe; the slurry sitting method is further used for fixing the pipe, and the quality of the fixing pipe is reliable, ensuring that the annular pores between the casing and the hole wall are densely filled with cement slurry. For the section crossing the coal mine goaf, thick cement slurry can be used, and a certain amount of clay or bentonite can be added when necessary. The cement slurry in the φ127mm casing must be filled with cement slurry in the whole section. Return from the hole mouth; after the pipe is fixed, the bottom is sealed with 2-3m cement slurry to ensure the stability of the groundwater level in the hole and reduce background noise; the inner diameter of the φ127mm casing is not less than 115mm, the inner interface of the casing is flat, and the pipe wall is smooth and uniform to ensure the normal lowering and pushing of the detector. After the pipe is fixed, the mud in the φ127mm casing is repeatedly flushed with clean water, and no mud is allowed; after the casing is flushed, the borehole peep instrument is lowered to detect the cleanliness of the inner wall of the casing. Only after the test is qualified can the vertical seismic profiling (VSP) seismic exploration detector be lowered.

[0056] During the VSP seismic exploration process, controlled vibrator excitation is used on the ground to collect and analyze the seismic wave amplitude, frequency, velocity, phase and other properties of the rock mass in the entire hole section (within 20m around the borehole), identify rock mass structural parameters such as rock mass integrity, fracture density, fracture size, etc., and can also include data such as the longitudinal and transverse wave velocities of the formation to provide data for layer optimization.

[0057] Geophysical logging is based on engineering geological drilling in goaf areas. It uses electrical logging, acoustic logging and radioactive logging methods, and uses the RG comprehensive digital logging system to detect geological boreholes before cementing. It tests key geophysical and mechanical indicators such as aperture, hole inclination, natural potential, natural gamma, gamma-gamma, rock density, acoustic time difference, sound amplitude, porosity, rock elastic parameters, etc. of the borehole formation.

[0058] In-hole digital imaging uses in-hole digital imaging technology to scan and image geological boreholes to identify rock properties, integrity, fracture development and occurrence, three-zone development height, filling conditions, fracture distribution density, goaf burial depth, mining height, distance between the drilled stratum and the goaf floor, and other information.

[0059] In the embodiment of the present application, the implementation method of step S202 can be implemented by any of the methods in the embodiments of the present disclosure, which is not limited here and will not be repeated.

[0060] S203, based on the hierarchical analysis and related indicator data, an evaluation model of the indicator layer, the criterion layer and the target layer is generated.

[0061] Among them, the target layer is used to determine the target result of the optimal solution, the indicators of the criterion layer are geological condition factors, mining condition factors, physical property index factors and constraint index factors, and the indicator layer is all relevant indicator data; for example, by using fuzzy mathematical methods, a hierarchical structure model consisting of the target layer, criterion layer and indicator layer is constructed to obtain a hierarchical analysis framework model and system for the optimal position of horizontal directional drilling in the goaf area, as shown in the following example. Figure 5 shown.

[0062] Among them, the indicator set of the criterion layer of the evaluation object: A = {A1, A2, A3, A4};

[0063] The indicator set of the indicator layer: A1 = {A 11 , A 12 , A 13 , A 14 , A 15}、A2={A 21 , A 22 , A 23 , A 24}、A3={A 31 , A 32 , A 33 , A 34 , A 35 , A 36 , A 37 , A 38} and A4={A 41}.

[0064] The horizontal directional drilling layer position optimization of the goaf area is evaluated and analyzed through a two-level evaluation from bottom to top; the first step is to use the index of the index layer (A ij ,i=1,2,……,n) comprehensive evaluation criteria layer index (A i , i = 1, 2, 3, 4); the second step, using the criterion layer (A i , i = 1, 2, 3, 4) indicators comprehensively evaluate the indicators of the target layer (A).

[0065] In some implementations, the scale of the judgment matrix of the hierarchical analysis method can be seen in Table 1. This embodiment constructs AA i , Ai-A ij Judgment matrix.

[0066] Table 1

[0067] Scale meaning 1 A row factor is as important as a column factor 3 A row factor is slightly more important than a column factor 5 A row factor is more important than a column factor 7 A row factor is more important than a column factor 9 A row factor is definitely more important than a column factor 1 / 3 A column factor is slightly more important than a row factor 1 / 5 A column factor is more important than a row factor 1 / 7 A column factor is more important than a row factor 1 / 9 A column factor is definitely more important than a row factor 2、4、6、8 The middle value of two adjacent judgments

[0068] In order to ensure the reliability of the judgment matrix, it is necessary to perform a consistency test. First, according to the judgment matrix, AA i Column Normalization Then add the rows Get vector Secondly, for the vector Perform normalization and standardization to obtain the feature vector in Calculate the maximum eigenvalue λ of the matrix max ; Finally, a consistency test is performed, and the test formula is CI = (λ max -n)(n-1), Among them, CI is the consistency index; CR is the consistency ratio; RI is the randomness index, and the randomness index can be shown in Table 2.

[0069] Table 2

[0070] Degree 1 2 3 4 5 6 7 8 9 RI 0 0 0.58 0.90 1.12 1.24 1.32 1.41 1.45

[0071] When CI = 0, the matrix is ​​completely consistent; the larger the CI, the worse the consistency of the matrix; when CR < 0.1 or around 0.1, the consistency of the matrix is ​​satisfactory; i The weight of layer A relative to layer A and the weight of layer A ij Layer relative to A i After the weight of the layer, we need to calculate A ijThe weight of the A-layer relative to the A-layer is used to calculate the ranking weight of the relative importance of all elements of each layer to the overall goal, which is used as the total ranking of the layers. The combined weight of each indicator is calculated by multiplying the weights of the two levels, and the various schemes are ranked according to the combined weights of the bottom-level indicators, and the scheme with the largest weight is selected as the optimal scheme. In this way, the evaluation model constructed based on the analytic hierarchy process can realize the optimization of the horizontal directional drilling layer in the mining stratum.

[0072] S204, obtaining a preferred solution for horizontal directional drilling of mining-induced subsidence formations based on the evaluation model.

[0073] In some implementations, the target result can be output based on the target layer of the evaluation model, and the target result can be determined as the preferred solution for the horizontal directional drilling layer in the mining-induced collapse formation, providing a basis for the directional drilling design and construction.

[0074] In this embodiment, geological surveys and field drilling are carried out through geophysical logging, engineering geological drilling, in-hole digital imaging, and seismic exploration to obtain more comprehensive and accurate relevant indicator data, and joint inversion is performed based on seismic data, logging data, and geological data to obtain corresponding relevant indicator data, thereby ensuring reliable identification and fine detection of relevant indicator data, ensuring the accuracy and comprehensiveness of data acquisition, and constructing an evaluation model based on comprehensive relevant indicator data and hierarchical analysis method. The evaluation model outputs the target results, forming a fuzzy comprehensive evaluation model and system for layer optimization based on multi-factor indicators of hierarchical analysis method, thereby determining the optimal solution for horizontal directional drilling layers in mining-induced subsidence formations, and providing an accurate basis for directional drilling design and construction.

[0075] In order to realize the above-mentioned embodiment, the present application also proposes a device for optimizing the layer position for horizontal directional drilling in mining-induced subsidence strata.

[0076] Figure 6 This is a schematic diagram of the structure of a device for optimizing the position of a horizontal directional drilling in a mining-induced subsidence formation provided in an embodiment of the present application. Figure 6 As shown, the device 600 for optimizing the layer position of horizontal directional drilling in mining-induced subsidence strata comprises:

[0077] The first acquisition module 601 is used to acquire a list of influencing indicators of horizontal directional drilling efficiency, wherein the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors and constraint index factors;

[0078] The second acquisition module 602 is used to acquire relevant index data of drilling efficiency according to the index list;

[0079] The third acquisition module 603 is used to construct an evaluation model based on relevant indicator data, and obtain a preferred solution for horizontal directional drilling of mining-induced subsidence formations based on the evaluation model.

[0080] Further, in a possible implementation of the embodiment of the present application, the geological condition factor includes at least one of stratum structure, stratum lithology, stratum occurrence, rock compressive strength and rock mass integrity index;

[0081] The mining condition factors include at least one of the following: the depth of goaf, mining height, three-zone development height, and groundwater occurrence;

[0082] The physical property index factors include at least one of formation fracture density, permeability coefficient, saturation, porosity, density, slurry loss, lithology sampling rate and rock quality index;

[0083] The constraint index factors include the distance between the drilling stratum and the bottom of the goaf.

[0084] Furthermore, in a possible implementation of the embodiment of the present application, the second acquisition module 602 includes:

[0085] All indicator data in the influencing indicator list are obtained, and all indicator data are used as relevant indicator data of drilling efficiency.

[0086] Furthermore, in a possible implementation of the embodiment of the present application, the second acquisition module 602 includes:

[0087] well logging data obtained through geophysical logging, seismic data obtained through seismic surveys, and geological data obtained through geological drilling;

[0088] Based on the joint inversion of well logging data, geological data and seismic data, the formation fracture density, permeability, saturation, porosity and density in the physical property index factors are obtained.

[0089] Furthermore, in a possible implementation of the embodiment of the present application, the second acquisition module 602 includes:

[0090] Conduct geological surveys on the goaf to obtain geological condition factors such as stratum structure, stratum lithology, stratum occurrence, rock compressive strength, rock mass integrity index, and physical property index factors such as slurry leakage, lithology recovery rate, and rock quality index;

[0091] On-site drilling is carried out in the goaf to obtain the goaf burial depth, mining height, three-zone development height, groundwater occurrence in the mining condition factors, and the distance between the drilling stratum and the goaf floor in the constraint index factors.

[0092] Further, in a possible implementation of the embodiment of the present application, the third acquisition module 603 includes:

[0093] Based on hierarchical analysis and relevant indicator data, an evaluation model of indicator layer, criterion layer and target layer is generated; the target layer is used to determine the target result of the preferred solution, the indicators of the criterion layer are geological condition factors, mining condition factors, physical property indicator factors and constraint indicator factors, and the indicator layer is all relevant indicator data.

[0094] Further, in a possible implementation of the embodiment of the present application, the third acquisition module 603 includes:

[0095] The target layer outputs the target result based on the evaluation model, and determines the target result as the preferred solution for the horizontal directional drilling layer of the mining-induced collapse formation.

[0096] It should be noted that the aforementioned explanation of the embodiment of the method for optimizing the layer position of horizontal directional drilling in a mining-induced subsidence formation is also applicable to the device for optimizing the layer position of horizontal directional drilling in a mining-induced subsidence formation of this embodiment, and will not be repeated here.

[0097] In the embodiments of the present application, geological surveys and field drilling are carried out through geophysical logging, engineering geological drilling, in-hole digital imaging, and seismic exploration to obtain more comprehensive and accurate relevant indicator data, and joint inversion is performed based on seismic data, logging data, and geological data to obtain corresponding relevant indicator data, thereby ensuring reliable identification and fine detection of relevant indicator data, ensuring the accuracy and comprehensiveness of data acquisition, constructing an evaluation model based on comprehensive relevant indicator data and hierarchical analysis method, and outputting target results by the evaluation model to determine the optimal solution for horizontal directional drilling positions in mining-induced subsidence formations, thereby providing an accurate basis for directional drilling design and construction.

[0098] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0099] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0100] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0101] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0102] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0103] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0104] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0105] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0106] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0107] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0108] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0109] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0110] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0111] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for optimizing the position of horizontal directional drilling in mining-induced subsidence strata, characterized in that: The method comprises: Obtaining a list of influencing indicators of horizontal directional drilling efficiency, wherein the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors, and constraint index factors; According to the influencing index list, obtain relevant index data of drilling efficiency; An evaluation model is constructed based on the relevant indicator data, and a preferred solution for horizontal directional drilling of mining-induced subsidence formations is obtained based on the evaluation model.

2. The method according to claim 1, characterized in that The geological condition factor includes at least one of stratum structure, stratum lithology, stratum occurrence, rock compressive strength and rock mass integrity index; The mining condition factors include at least one of the following: the depth of goaf, mining height, three-zone development height and groundwater occurrence; The physical property index factor includes at least one of formation fracture density, permeability coefficient, saturation, porosity, density, slurry loss, lithology recovery rate and rock quality index; The constraint index factor includes the distance between the drilled stratum and the bottom plate of the goaf.

3. The method according to claim 2, characterized in that The obtaining of relevant indicator data of drilling efficiency according to the influencing indicator list includes: All indicator data in the influencing indicator list are acquired, and all the indicator data are used as relevant indicator data of the drilling efficiency.

4. The method according to claim 3, characterized in that The obtaining of relevant indicator data of drilling efficiency according to the influencing indicator list includes: Acquire well logging data, seismic data and geological data through geophysical logging, seismic exploration and geological drilling respectively; Joint inversion is performed based on the well logging data, the geological data and the seismic data to obtain the formation fracture density, permeability, saturation, porosity and density in the physical property index factors.

5. The method according to claim 3, characterized in that: The obtaining of relevant indicator data of drilling efficiency according to the influencing indicator list includes: Conducting geological surveys on the goaf to obtain the geological condition factors, such as stratum structure, stratum lithology, stratum occurrence, rock compressive strength, rock mass integrity index, and the physical property index factors, such as slurry leakage, lithology recovery rate, and rock quality index; The goaf is drilled on site to obtain the goaf burial depth, mining height, three-zone development height, groundwater occurrence in the mining condition factors, and the distance between the drilling stratum and the goaf floor in the constraint index factors.

6. The method according to claim 2, characterized in that The constructing of the evaluation model based on the relevant indicator data includes: Based on hierarchical analysis and the relevant indicator data, an evaluation model of the indicator layer, criterion layer and target layer is generated; wherein the target layer is used to determine the target result of the preferred solution, the indicators of the criterion layer are geological condition factors, mining condition factors, physical property indicator factors and constraint indicator factors, and the indicator layer is all the relevant indicator data.

7. The method according to claim 6, characterized in that The preferred scheme for obtaining the horizontal directional drilling position of the mining-induced subsidence formation based on the evaluation model includes: The target layer outputs a target result based on the evaluation model, and the target result is determined as a preferred solution for the horizontal directional drilling layer of the mining-induced collapse formation.

8. A device for optimizing the layer position of horizontal directional drilling in mining-induced subsidence strata, characterized in that: include: A first acquisition module is used to acquire a list of influencing indicators of horizontal directional drilling efficiency, wherein the list of influencing indicators includes at least one of geological condition factors, mining condition factors, physical property index factors and constraint index factors; A second acquisition module is used to acquire relevant indicator data of drilling efficiency according to the influencing indicator list; The third acquisition module is used to construct an evaluation model based on the relevant indicator data, and to obtain a preferred solution for horizontal directional drilling of mining-induced subsidence formations based on the evaluation model.

9. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 7 when executed by a processor.

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