A method and system for intelligent layout of directional boreholes for gas control

Abstract

This invention provides a method and system for intelligent layout of directional boreholes for gas control, relating to the field of gas borehole control technology. The method includes: acquiring coal seam occurrence information and gas source information; collecting roadway video and then performing feature frame recognition and stitching to construct a three-dimensional scene; performing initial fitting of gas boreholes based on gas control demand information, coal seam occurrence information, and gas source information; fitting and correcting the borehole positions of the initial borehole fitting results based on roadway features in the scene; obtaining the adjusted borehole fitting results for numerical simulation; generating numerical simulation results for multi-angle gas control evaluation; generating corrected borehole layout information for gas borehole control; solving the technical problem that existing technologies rely more on manual experience for borehole placement, resulting in inaccurate placement; achieving rational and precise placement of gas boreholes, thereby improving the accuracy of gas borehole placement.

Description

Technical Field

[0001] This invention relates to the field of gas borehole control technology, specifically to a method and system for intelligent layout of directional boreholes for gas control. Background Technology

[0002] With the development of gas control technology, especially the development of gas borehole drilling, my country's coal development mainly relies on underground mining. As mining depth continues to increase, the permeability of coal seams decreases, making coal and gas outbursts more likely. Gas is increasingly hindering safe production in coal mines, making timely and accurate gas control a pressing issue that needs to be addressed.

[0003] In existing technologies, gas control generally adopts the method of borehole extraction. The effectiveness of gas extraction is highly correlated with the layout of the extraction boreholes. Therefore, for gas control, it is extremely important to arrange the extraction boreholes reasonably before gas extraction.

[0004] However, existing technologies rely heavily on manual experience for hole placement during drilling, resulting in insufficient intelligence and accuracy, which is detrimental to the effective management of gas. Summary of the Invention

[0005] This application provides a method and system for intelligent layout of directional drilling for gas control, which addresses the technical problem that existing gas drilling methods rely heavily on manual experience for hole placement, resulting in insufficient intelligence and accuracy in the layout.

[0006] In view of the above problems, this application provides a method and system for intelligent layout of directional drilling for gas control.

[0007] In a first aspect, this application provides a method for intelligent layout of directional boreholes for gas control. The method includes: connecting to the information interaction device to acquire coal seam occurrence information and gas source information; acquiring roadway video through the image acquisition device, performing feature frame recognition and stitching on the video acquisition results to construct a three-dimensional scene; acquiring gas control demand information, performing initial fitting of gas boreholes based on the coal seam occurrence information and the gas source information to obtain an initial borehole fitting result; performing scene fitting of the initial borehole fitting result and the acquired three-dimensional scene, and fitting and correcting the borehole position of the initial borehole fitting result based on roadway features in the scene to obtain an adjusted borehole fitting result; performing numerical simulation based on the adjusted borehole fitting result to generate numerical simulation results; performing multi-angle gas control evaluation on the numerical simulation results, generating corrected borehole layout information based on the control evaluation results; and performing gas borehole control through the corrected borehole layout information.

[0008] Secondly, this application provides a directional borehole intelligent layout system for gas control, the system comprising: a connection module for connecting to the information interaction device and acquiring coal seam occurrence information and gas source information through the information interaction device; a stitching module for acquiring roadway video through the image acquisition device, performing feature frame recognition and stitching on the video acquisition results to construct an acquired three-dimensional scene; and a fitting module for acquiring gas control demand information, performing initial fitting of gas boreholes based on the gas control demand information, the coal seam occurrence information, and the gas source information to obtain an initial borehole fitting result. The system comprises: a fitting correction module, which fits the initial borehole fitting result with the acquired 3D scene, and corrects the borehole position of the initial borehole fitting result based on the tunnel features in the scene to obtain an adjusted borehole fitting result; a numerical simulation module, which performs numerical simulation using the adjusted borehole fitting result to generate numerical simulation results; an evaluation module, which evaluates the numerical simulation results from multiple angles to assess gas control, and generates corrected borehole layout information based on the assessment results; and a control module, which performs gas borehole control using the corrected borehole layout information.

[0009] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0010] This application provides an intelligent layout method for directional drilling in the field of gas control technology. It solves the technical problem that the existing gas drilling layout relies more on manual experience for hole placement, resulting in insufficient intelligence and accuracy. This method achieves rational and precise layout of gas drilling holes, thereby improving the accuracy of gas drilling hole placement. Attached Figure Description

[0011] Figure 1 This application provides a schematic flowchart of a directional drilling intelligent layout method for gas control;

[0012] Figure 2 This application provides a schematic diagram of the process for acquiring a three-dimensional scene in a directional drilling intelligent layout method for gas control;

[0013] Figure 3 This application provides a schematic diagram of the initial borehole fitting result process in a directional borehole intelligent layout method for gas control;

[0014] Figure 4 This application provides a schematic diagram of the process for adjusting borehole fitting results in a directional borehole intelligent layout method for gas control;

[0015] Figure 5 This application provides a schematic diagram of the evaluation result flow of a directional drilling intelligent layout method for gas control;

[0016] Figure 6 This application provides a schematic diagram of a directional drilling intelligent layout system for gas control.

[0017] Figure labeling: Connection module 1, splicing module 2, fitting module 3, fitting correction module 4, numerical simulation module 5, evaluation module 6, governance module 7. Detailed Implementation

[0018] This application provides an intelligent layout method for directional drilling in gas control, which addresses the technical problem that existing gas drilling methods rely heavily on manual experience for borehole placement, resulting in insufficient intelligence and accuracy in the layout.

[0019] Example 1

[0020] like Figure 1 As shown in the figure, this application provides a method for intelligent layout of directional boreholes for gas control. This method is applied to an intelligent layout system for directional boreholes, which is communicatively connected to an image acquisition device and an information interaction device. The method includes:

[0021] Step S100: Connect to the information interaction device and obtain coal seam occurrence information and gas source information through the information interaction device;

[0022] Specifically, the directional drilling intelligent layout method for gas control provided in this application is applied to a directional drilling intelligent layout system. The directional drilling intelligent layout system is communicatively connected to an image acquisition device and an information interaction device. The image acquisition device and the information interaction device are used to collect environmental parameters for gas borehole layout.

[0023] By connecting to an information interaction device and reading data related to coal seams and gas after connection, the information interaction device collects basic information on coal mines and gas, thereby obtaining corresponding coal seam occurrence information and gas source information. This interaction refers to integrating the collected basic information on coal mines and gas into the system, and then connecting the collected basic information on coal mines and gas with the corresponding system through the information interaction device, thereby reading the coal seam occurrence information and gas source information corresponding to the collected basic information on coal mines and gas. The coal seam occurrence information refers to gas... There are three basic states of gas occurrence within coal seams: the first is adsorbed gas, which is gas adsorbed onto the inner surface of the pores and fissures of the coal; the second is free gas, which exists in the pores of the coal; and the third is dissolved gas, which is dissolved gas, which is gas dissolved in the coal seam water. Under certain temperature and pressure conditions, these three states of gas are in a unified dynamic equilibrium system. The information on the gas source refers to the origin of gas existing in the free and adsorbed states in the coal body or surrounding rock, which serves as an important reference for the subsequent gas borehole control.

[0024] Step S200: The tunnel video is acquired using the image acquisition device, and the video acquisition results are stitched together by feature frame recognition to construct the acquired three-dimensional scene;

[0025] Specifically, video is captured from the tunnel using an image acquisition device, and a three-dimensional Cartesian coordinate system is constructed. This system is then built using the acquired tunnel location, tunnel angle, acquisition control parameters of the image acquisition device, and the coordinates of the image acquisition device. Keyframes within the video are analyzed using the obtained information to obtain keyframes, which are then extracted. Based on the shared positioning features in the extracted keyframes, and using the acquired tunnel location information, tunnel angle information, the constructed three-dimensional coordinate system, and the keyframe extraction results, tunnel feature location identification is performed. The acquired three-dimensional scene is then obtained based on the location identification and construction results, and this scene is further constructed to ensure the successful implementation of gas control drilling.

[0026] Step S300: Collect and obtain gas control demand information, and perform initial fitting of gas boreholes based on the coal seam occurrence information and gas source information in the gas control demand information to obtain initial borehole fitting results;

[0027] Specifically, the required information for gas control is collected, including the layout method, spacing, and borehole type of gas boreholes. Based on the obtained gas control demand information, an initial fitting of the obtained coal seam occurrence information and gas source information is performed on the gas boreholes. First, a smart borehole layout model is constructed. The initial fitting refers to matching the obtained coal seam occurrence information and gas source information to the layout method, spacing, and borehole type of gas boreholes. Then, the obtained gas control demand information is analyzed, input into the constructed smart borehole layout model, and output a set of borehole fittings. The obtained set of borehole fittings is used as the initial borehole fitting result, laying a solid foundation for subsequent gas borehole control.

[0028] Step S400: Perform scene fitting between the initial borehole fitting result and the acquired 3D scene, and perform fitting correction on the borehole position of the initial borehole fitting result based on the tunnel features in the scene to obtain the adjusted borehole fitting result;

[0029] Specifically, the initial borehole fitting result obtained by initially fitting the coal seam occurrence information and the gas source information with the gas control demand information is combined with the three-dimensional scene constructed by capturing roadway video through an image acquisition device and then identifying and stitching feature frames. This scene fitting corrects the borehole positions of the gas boreholes in the initial borehole fitting result based on the roadway features in the acquired three-dimensional scene. Specifically, it identifies the conflicting influence features between the roadway features and the gas boreholes based on the acquired three-dimensional scene, and analyzes the impact of this on the borehole positions in the initial borehole fitting result. Then, based on the initial borehole fitting result and the acquired three-dimensional scene, boreholes outside the roadway are screened. The roadway adjustment influence value is calculated for the selected adjustment boreholes, and multiple gas boreholes that meet a preset threshold are obtained. Finally, the positions of these multiple gas boreholes are fitted and corrected to obtain the adjustment borehole fitting result, which plays an adjusting role in achieving gas borehole control.

[0030] Step S500: Perform numerical simulation based on the adjusted borehole fitting results to generate numerical simulation results;

[0031] Specifically, numerical simulations are performed using the aforementioned adjusted borehole fitting results. These simulations involve optimizing the management of gas boreholes through numerical calculations and image display. Specifically, the adjusted borehole fitting results are obtained by fitting and correcting the borehole locations in the initial borehole fitting results based on the tunnel features in the acquired 3D scene. Furthermore, the initial borehole fitting results are effectively discretized using a digital computer to obtain the continuous system discretization and approximate solutions of the discrete equations for the initial borehole. Additionally, the conflicting influence features between the gas boreholes and the tunnel features in the acquired 3D scene are displayed image-wise. Finally, the two are integrated to generate corresponding numerical simulation results, which have a profound impact on the subsequent management of gas boreholes.

[0032] Step S600: Perform a multi-angle gas control evaluation on the numerical simulation results, and generate corrected borehole layout information based on the evaluation results;

[0033] Specifically, based on the numerical simulation results generated by adjusting the borehole fitting results, a multi-angle gas control evaluation is performed. This involves dividing the obtained numerical simulation results into multiple time stages, with different control analysis results corresponding to each time stage. The control analysis results corresponding to each time stage are then matched with the obtained gas control demand information. This result is then integrated and evaluated with the result obtained by matching the control fitting effect with the obtained gas control demand information based on the obtained numerical simulation results. This yields the corresponding control evaluation result. Furthermore, based on the obtained control evaluation result, corrected borehole layout information is generated. The generated corrected borehole layout information better enables the control of gas boreholes.

[0034] Step S700: Perform gas borehole control using the corrected borehole layout information.

[0035] Specifically, after evaluating the obtained numerical simulation results from multiple angles, the evaluation results are obtained by matching the governance analysis results corresponding to multiple time periods in the governance evaluation results with the obtained gas governance demand information. Based on the obtained numerical simulation results, the evaluation results are obtained by matching the governance fitting effect with the obtained gas governance demand information. Based on the original gas borehole locations, the drilling layout, drilling method, drilling interval, etc. of the gas boreholes are more accurately located and corrected, thereby generating better corrected borehole layout information. Finally, the generated corrected borehole layout information is used to carry out more accurate and rational governance of the gas boreholes.

[0036] Furthermore, this invention provides a method and system for intelligent layout of directional boreholes for gas control, relating to the field of gas borehole control technology. The method includes: acquiring coal seam occurrence information and gas source information through an information interaction device; acquiring roadway video through an image acquisition device and then constructing a three-dimensional scene by recognizing and stitching feature frames; performing initial fitting of gas boreholes based on gas control demand information, coal seam occurrence information, and gas source information; fitting and correcting the borehole positions of the initial borehole fitting results based on roadway features in the scene; obtaining adjusted borehole fitting results for numerical simulation; generating numerical simulation results for multi-angle gas control evaluation; and generating corrected borehole layout information for gas borehole control. This invention solves the technical problem that in the prior art, gas borehole layout relies more on manual experience for borehole placement, resulting in insufficient intelligence and accuracy in layout. It achieves rational and precise layout of gas boreholes, thereby improving the accuracy of gas borehole layout.

[0037] Furthermore, such as Figure 2 As shown, step S200 of this application further includes:

[0038] Step S210: Construct a three-dimensional coordinate system and acquire the acquisition position information and acquisition angle information of the image acquisition device;

[0039] Step S220: Extract keyframes from the video acquisition results to obtain keyframe extraction results, wherein adjacent keyframe images in the keyframe extraction results have the same positioning features;

[0040] Step S230: Construct tunnel feature location identification based on the acquired location information, the acquired angle information, the three-dimensional coordinate system, and the keyframe extraction results;

[0041] Step S240: Obtain the acquired 3D scene based on the location recognition and construction results.

[0042] Specifically, a three-dimensional coordinate system is first constructed, with the image acquisition device as the center, the northward direction of the image acquisition device as the y-axis, the eastward direction as the x-axis, and the upward direction as the z-axis. Based on this system, the location and angle information of the tunnel acquired by the image acquisition device are located and extracted. The starting frame of the defined shot in the video capture results is designated as the keyframe, and keyframes are dynamically extracted from the video capture results. The extraction should not be based on the length of the shot, but rather on the intensity of the changes in the shot; the more drastic the changes, the more keyframes should be extracted, even if the shot is short. Conversely, even in a long shot with minimal changes, fewer keyframes should be extracted. For keyframes, if the current shot is completely black, no keyframes are extracted. For example, starting from frame M, the algorithm searches for the largest frame among the next 8 frames. If the interval of the largest frame is less than M, frame M is retained; otherwise, the algorithm proceeds to the next step. If there is a frame larger than M, it is named P. The average interval between M and P is calculated, and it is determined whether P is greater than a multiple of the average. If not, M is retained; otherwise, P becomes the new frame M, and the algorithm continues to judge. Starting from the new keyframe, each subsequent frame is compared with it until the last frame. After comparison, it is determined whether the actual number of keyframes obtained satisfies the relation. If not, the keyframes are recombined, and the above steps are repeated until the number of keyframes reaches the requirement, at which point the algorithm ends. In the keyframe extraction result, adjacent keyframe images all have the same positioning features.

[0043] Furthermore, based on the tunnel location information, acquisition angle information, constructed three-dimensional coordinate system, and extracted keyframes acquired by the image acquisition device, tunnel feature location identification and construction are performed. Based on the obtained location identification and construction results, the acquired three-dimensional scene is obtained, thereby improving the management of gas boreholes.

[0044] Furthermore, such as Figure 3 As shown, step S300 of this application further includes:

[0045] Step S310: Match borehole types based on the coal seam occurrence information and the gas source information to obtain a set of suitable borehole types;

[0046] Step S320: Analyze the gas control demand information to obtain the expected control effect information and control cost information;

[0047] Step S330: Construct a drilling intelligent layout model, input the set of adaptable drilling types into the basic constraint module of the drilling intelligent layout model, and complete the model initialization of the drilling intelligent layout model;

[0048] Step S340: Input the expected governance effect information and the governance cost information into the intelligent borehole layout model, and output the borehole fitting set;

[0049] Step S350: Obtain the initial borehole fitting result based on the borehole fitting set.

[0050] Specifically, based on the coal seam type from the obtained coal seam occurrence information and the gas source from the obtained gas source information, the borehole type is matched with those having different coal seam occurrences and different gas sources to obtain a set of suitable borehole types. This set of gas borehole types can include boreholes within the coal seam, cross-seam boreholes, high-level roof boreholes, and other types of boreholes. Then, the obtained gas control demand information is analyzed to obtain the corresponding expected gas control effect information and gas control cost information. Further, a borehole intelligent layout model is constructed, which can include an input module, a basic constraint module, a borehole fitting module, and an output module. Finally, the obtained set of suitable borehole types is used to... The input module of the borehole intelligent layout model is fed into the basic constraint module of the borehole intelligent layout model to improve the borehole intelligent layout model, thereby completing the model initialization of the borehole intelligent layout model. Then, the obtained expected treatment effect information and the obtained treatment cost information are input into the borehole fitting module of the improved borehole intelligent layout model. Based on the input expected treatment effect information and treatment cost information, borehole fitting is performed on the set of suitable borehole types in the basic constraint module of the borehole intelligent layout model. Finally, the output module of the borehole intelligent layout model outputs the fitted borehole fitting set and obtains the initial borehole fitting result based on the output borehole fitting set, thus achieving the technical effect of gas borehole treatment in the later stage.

[0051] Furthermore, step S350 of this application includes:

[0052] Step S351: Perform treatment time prediction and labeling on the borehole fitting set to obtain treatment time labeling results;

[0053] Step S352: Generate additional governance cost information based on the governance time identifier result;

[0054] Step S353: Construct a balance coefficient between governance effectiveness and governance cost;

[0055] Step S354: The treatment effect and treatment cost of the borehole fitting set are weighted and calculated using the balance coefficient, wherein the treatment cost includes the additional treatment cost information;

[0056] Step S355: Filter the initial borehole fitting results based on the weighted calculation results.

[0057] Specifically, based on the expected treatment effect and treatment cost information, the matching type of the target gas borehole is found in the obtained borehole fitting set. This allows for the prediction and labeling of the treatment time required for the gas borehole, thus obtaining the gas treatment time labeling result. If shorter treatment time is considered better in the predicted gas treatment time labeling result, additional treatment costs will be incurred during gas drilling, generating additional treatment cost information. A balance coefficient between treatment effect and treatment cost is constructed, where the balance coefficient is the ratio of the actual treatment effect to treatment cost to the ratio of treatment effect to treatment cost when they are in equilibrium. Furthermore, the obtained balance coefficient is used to analyze the obtained borehole... The treatment effect and treatment cost of the borehole fitting set are weighted and calculated. The treatment cost includes the additional treatment cost information obtained. The weighted calculation needs to be based on a large amount of data aggregation and precise determination of weights before targeted calculation. For example, the weight ratio of treatment effect and treatment cost can be 6:4 for the first influence coefficient and the second influence coefficient. Then, the influence parameters after the weighted calculation process are the first influence parameter * 0.6 and the second influence parameter * 0.4, respectively. The final value of the matching result is obtained based on the weighted calculation result. Then, the final value is used to screen the borehole fitting result with the optimal treatment effect and treatment cost to obtain the initial borehole fitting result, so as to ensure the efficiency of gas borehole treatment.

[0058] Furthermore, such as Figure 4 As shown, step S400 of this application further includes:

[0059] Step S410: Based on the initial borehole fitting results and the acquired 3D scene, perform non-tunnel borehole screening to obtain a set of selected and adjusted boreholes;

[0060] Step S420: Calculate the influence value of roadway adjustment on the selected and adjusted borehole set, and obtain the influence value calculation result;

[0061] Step S430: Obtain the set of boreholes whose influence value calculation results satisfy the preset threshold in the selected and adjusted borehole set;

[0062] Step S440: Perform position fitting correction on the borehole set to obtain the adjusted borehole fitting result.

[0063] Specifically, the initial borehole fitting results obtained above are used to screen and extract gas boreholes that are not drilled within the roadway, based on the constructed 3D scene. This involves screening the borehole locations based on the initial borehole fitting results. Generally, the preferred borehole location is within the mining roadway. For boreholes whose locations can be modified, they are adjusted to be boreholes within the roadway. For boreholes whose evaluation exceeds expectations, a dedicated gas extraction roadway can be used. The screened results are then summarized to obtain a set of selected and adjusted boreholes. The roadway adjustment impact value is then calculated for this set. This roadway adjustment impact value calculation includes both borehole cost impact value and borehole location impact value. The cost impact value refers to the increase or decrease in actual costs during the borehole adjustment process, while the location impact value refers to whether the roadway can accept gas. The influence value of the borehole location in the roadway is calculated to obtain the influence calculation result. Further, the borehole set whose influence value calculation results satisfy a preset threshold is extracted from the obtained filtered and adjusted borehole set. The preset threshold is determined by relevant technical personnel based on the amount of gas borehole data. The location of the borehole set meeting the preset threshold is then fitted and corrected. Specifically, the borehole set meeting the preset threshold is used as points and marked in a rectangular coordinate system of gas borehole location and cost, with mm as the x-axis and yuan as the y-axis. The location fitting and correction of the borehole set meeting the preset threshold involves connecting these points with a smooth curve to obtain the adjusted borehole fitting result, thus providing a technical reference for gas borehole management.

[0064] Furthermore, step S400 of this application also includes:

[0065] Step S450: Based on the collected 3D scene recognition, obtain the characteristics of borehole conflict impact in the tunnel;

[0066] Step S460: Perform an impact analysis on the borehole positions of the initial borehole fitting results based on the borehole conflict impact characteristics, and generate a set of position-adjusted boreholes based on the impact analysis results;

[0067] Step S470: Obtain the adjusted borehole fitting result by adjusting the borehole set through the position.

[0068] Specifically, based on the acquired 3D scene, the characteristics of borehole conflict impact within the roadway are identified. These characteristics refer to the adjustment of the position of the boreholes already set in the mining roadway and the conflict characteristics of the mining roadway. The borehole conflict impact characteristics are obtained by comparing the conflict characteristics related to the boreholes. Based on this, the borehole positions in the initial borehole fitting results are analyzed for their impact. This means comparing the gas borehole positions determined in the initial borehole fitting results with the borehole conflict impact characteristics. If the borehole positions in the initial borehole fitting results match the borehole conflict impact characteristics, the positions of the gas boreholes need to be adjusted accordingly. Finally, the adjusted borehole fitting results are obtained based on the set of adjusted boreholes, achieving the technical effect of gas control.

[0069] Furthermore, such as Figure 5 As shown, step S600 of this application further includes:

[0070] Step S610: Perform a multi-time-stage governance analysis on the numerical simulation results, and generate a first evaluation result based on the matching degree between the governance analysis results and the gas governance demand information;

[0071] Step S620: Based on the numerical simulation results, generate a second evaluation result by assessing the fitting effect of the gas control system and the matching degree between the gas control demand information;

[0072] Step S630: Obtain the governance evaluation result based on the first evaluation result and the second evaluation result.

[0073] Specifically, numerical simulations of the adjusted borehole fitting results are used to perform different gas control analyses at multiple time periods. The matching degree between these analyses and the gas control demand information is then evaluated. Gas control demands can include gas explosion range, gas source, borehole layout, and gas extraction methods. These demands are matched with the gas control analysis results for different time periods, and a first evaluation result is generated based on the matching degree of the gas control demand with the analysis results. This first evaluation result can be either a match or a mismatch. Then, the adjusted borehole... The numerical simulation results obtained from the borehole fitting results are matched with the matching degree of the gas control demand information to generate a second evaluation result. The second evaluation result can be a match or a mismatch. Finally, based on the obtained first evaluation result and second evaluation result, the selected borehole scheme is fitted. The simulated engineering conditions include: coal seam thickness, original gas content of coal seam, diameter of drainage borehole, spacing of drainage borehole, drainage negative pressure, and drainage method, so as to obtain the control evaluation result. The obtained control evaluation result is used to generate corrected borehole layout information, thereby realizing the control of gas boreholes.

[0074] Example 2

[0075] Based on the same inventive concept as the directional drilling intelligent layout method for gas control described in the foregoing embodiments, such as Figure 6 As shown, this application provides a smart layout system for directional drilling in gas control, the system comprising:

[0076] Connection module 1, the connection module 1 is used to connect to the information interaction device, and to obtain coal seam occurrence information and gas source information through the information interaction device;

[0077] The stitching module 2 is used to acquire tunnel video through the image acquisition device, perform feature frame recognition and stitching on the video acquisition results, and construct the acquired three-dimensional scene.

[0078] Fitting module 3 is used to collect gas control demand information, perform initial fitting of gas boreholes based on the coal seam occurrence information and the gas source information, and obtain initial borehole fitting results.

[0079] Fitting correction module 4 is used to fit the initial borehole fitting result and the acquired three-dimensional scene, and to fit and correct the borehole position of the initial borehole fitting result based on the tunnel features in the scene, so as to obtain the adjusted borehole fitting result.

[0080] Numerical simulation module 5, which is used to perform numerical simulation based on the adjusted borehole fitting results and generate numerical simulation results;

[0081] Evaluation module 6 is used to evaluate the numerical simulation results from multiple angles and generate corrected borehole layout information based on the evaluation results.

[0082] The treatment module 7 is used to treat gas boreholes by means of the corrected borehole layout information.

[0083] Furthermore, the system also includes:

[0084] The acquisition module is used to construct a three-dimensional coordinate system and acquire the acquisition position information and acquisition angle information of the image acquisition device.

[0085] The extraction module is used to extract keyframes from the video acquisition results to obtain keyframe extraction results, wherein adjacent keyframe images in the keyframe extraction results have the same positioning features.

[0086] The identification and construction module is used to identify and construct the location of tunnel features based on the acquired location information, the acquired angle information, the three-dimensional coordinate system, and the keyframe extraction results.

[0087] A 3D scene construction module is used to obtain the acquired 3D scene based on the location recognition and construction results.

[0088] Furthermore, the system also includes:

[0089] The matching module is used to perform borehole type matching based on the coal seam occurrence information and the gas source information to obtain a set of suitable borehole types;

[0090] The demand analysis module is used to analyze the gas control demand information to obtain the expected control effect information and control cost information.

[0091] The model initialization module is used to construct the intelligent drilling layout model. It inputs the set of adaptable drilling types into the basic constraint module of the intelligent drilling layout model to complete the model initialization of the intelligent drilling layout model.

[0092] The output module is used to input the expected governance effect information and the governance cost information into the borehole intelligent layout model and output the borehole fitting set.

[0093] The first initial borehole fitting result module is used to obtain the initial borehole fitting result based on the borehole fitting set.

[0094] Furthermore, the system also includes:

[0095] The identification module is used to perform treatment time prediction identification on the borehole fitting set and obtain treatment time identification results;

[0096] The additional module is used to generate additional governance cost information based on the governance time identifier result;

[0097] The balance coefficient module is used to construct a balance coefficient between governance effectiveness and governance costs.

[0098] The weighted calculation module is used to perform weighted calculations on the treatment effect and treatment cost of the borehole fitting set using the balance coefficient, wherein the treatment cost includes the additional treatment cost information;

[0099] The second initial borehole fitting result module is used to obtain the initial borehole fitting result by filtering the weighted calculation result.

[0100] Furthermore, the system also includes:

[0101] The filtering module is used to filter non-tunnel boreholes based on the initial borehole fitting results and the acquired 3D scene to obtain a set of filtered and adjusted boreholes.

[0102] The calculation module is used to calculate the influence value of roadway adjustment on the selected and adjusted borehole set, and obtain the influence value calculation result;

[0103] The borehole set module is used to obtain the borehole set whose influence value calculation results satisfy a preset threshold in the selected and adjusted borehole set.

[0104] The first adjustment borehole fitting result module is used to perform position fitting correction on the borehole set to obtain the adjustment borehole fitting result.

[0105] Furthermore, the system also includes:

[0106] The feature module is used to identify the impact features of borehole conflicts in the tunnel based on the acquired three-dimensional scene.

[0107] The set module is used to perform an impact analysis on the borehole position of the initial borehole fitting result based on the borehole conflict impact characteristics, and generate a set of position-adjusted boreholes based on the impact analysis results.

[0108] The second adjustment borehole fitting result module is used to obtain the adjustment borehole fitting result through the set of adjusted boreholes.

[0109] Furthermore, the system also includes:

[0110] The first evaluation result module is used to perform governance analysis on the numerical simulation results under multiple time stages, and generate the first evaluation result based on the governance analysis results and the demand matching degree of the gas governance demand information.

[0111] The second evaluation result module is used to generate a second evaluation result based on the numerical simulation results, the fitting effect of the governance, and the demand matching degree of the gas governance demand information.

[0112] The governance evaluation result module is used to obtain the governance evaluation result based on the first evaluation result and the second evaluation result.

[0113] Through the foregoing detailed description of a directional drilling intelligent layout method for gas control, those skilled in the art can clearly understand the directional drilling intelligent layout method and system for gas control in this embodiment. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and relevant parts can be referred to the method section description.

[0114] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for intelligent layout of directional boreholes for gas control, characterized in that, The method is applied to a directional drilling intelligent layout system, which is communicatively connected to an image acquisition device and an information interaction device. The method includes: Connect to the information interaction device to obtain coal seam occurrence information and gas source information through the information interaction device; The image acquisition device is used to acquire tunnel video, and the video acquisition results are spliced ​​together by feature frame recognition to construct a three-dimensional scene. Information on gas control needs is collected, and based on the coal seam occurrence information and gas source information in the gas control needs information, an initial fitting of the gas borehole is performed to obtain the initial borehole fitting result. The initial borehole fitting result and the acquired 3D scene are fitted together. Based on the tunnel features in the scene, the borehole position of the initial borehole fitting result is fitted and corrected to obtain the adjusted borehole fitting result. Numerical simulation results are generated by performing numerical simulations based on the adjusted borehole fitting results. The numerical simulation results are evaluated from multiple angles to assess gas control, and corrected borehole layout information is generated based on the evaluation results. Gas borehole control is performed using the modified borehole layout information. The method further includes: Based on the coal seam occurrence information and the gas source information, borehole type matching is performed to obtain a set of suitable borehole types; The gas control demand information is analyzed to obtain the expected control effect information and control cost information; Construct a drilling intelligent layout model, input the set of adaptable drilling types into the basic constraint module of the drilling intelligent layout model, and complete the model initialization of the drilling intelligent layout model, wherein the drilling intelligent layout model includes an input module, a basic constraint module, a drilling fitting module and an output module; The expected governance effect information and the governance cost information are input into the intelligent borehole layout model, and the borehole fitting set is output. The initial borehole fitting result is obtained based on the borehole fitting set; Based on the initial borehole fitting results and the acquired 3D scene, non-tunnel boreholes are screened to obtain a set of selected and adjusted boreholes. The roadway adjustment impact value is calculated for the selected and adjusted borehole set to obtain the impact value calculation result, wherein the roadway adjustment impact value calculation includes the borehole cost impact value and the borehole location impact value; Obtain the set of boreholes whose influence value calculation results satisfy a preset threshold in the selected and adjusted borehole set; The position fitting correction is performed on the borehole set to obtain the adjusted borehole fitting result; Based on the collected 3D scene recognition, the borehole conflict impact features in the roadway are obtained. The borehole conflict impact features refer to the adjustment of the position of the conflict features between the boreholes already set in the mining roadway and the mining roadway. The borehole conflict impact features are obtained by comparing the conflict features related to the boreholes. Based on the borehole conflict impact characteristics, an impact analysis is performed on the borehole positions of the initial borehole fitting results, and a set of position-adjusted boreholes is generated based on the impact analysis results. The adjusted borehole fitting result is obtained by adjusting the borehole set at the aforementioned position; The method includes: The numerical simulation results are subjected to multi-time-stage governance analysis, and a first evaluation result is generated based on the matching degree between the governance analysis results and the gas governance demand information. A second evaluation result is generated based on the numerical simulation results to assess the fitting effect of the gas control and the matching degree of the gas control demand information. The governance evaluation result is obtained based on the first evaluation result and the second evaluation result.

2. The method as described in claim 1, characterized in that, The method includes: A three-dimensional coordinate system is constructed, and the acquisition position information and acquisition angle information of the image acquisition device are acquired. Keyframes are extracted from the video acquisition results to obtain keyframe extraction results, wherein adjacent keyframe images in the keyframe extraction results have the same positioning features. Based on the acquired location information, the acquired angle information, the three-dimensional coordinate system, and the keyframe extraction results, the tunnel feature location identification is constructed; The acquired 3D scene is obtained based on the location recognition results.

3. The method as described in claim 1, characterized in that, The method includes: The borehole fitting set is labeled with the treatment time prediction to obtain the treatment time labeling result; Additional governance cost information is generated based on the governance time identifier result. Specifically, if the shorter the governance time is considered better in the predicted gas governance time identifier result, additional governance costs will be generated for gas drilling, thereby generating the additional governance cost information. Establish a balance between governance effectiveness and governance costs; The treatment effect and treatment cost of the borehole fitting set are weighted and calculated using the balance coefficient, wherein the treatment cost includes the additional treatment cost information; The initial borehole fitting results are obtained by filtering based on the weighted calculation results.

4. A directional drilling intelligent layout system for gas control, characterized in that, The directional drilling intelligent layout system is communicatively connected to an image acquisition device and an information interaction device. The system includes: A connection module is used to connect to the information interaction device and obtain coal seam occurrence information and gas source information through the information interaction device. The stitching module is used to acquire tunnel video through the image acquisition device, perform feature frame recognition and stitching on the video acquisition results, and construct the acquired three-dimensional scene. The fitting module is used to collect gas control demand information, and perform initial fitting of gas boreholes based on the coal seam occurrence information and the gas source information to obtain initial borehole fitting results. The fitting correction module is used to perform scene fitting between the initial borehole fitting result and the acquired three-dimensional scene, and to perform fitting correction on the borehole position of the initial borehole fitting result based on the tunnel features in the scene, so as to obtain the adjusted borehole fitting result. A numerical simulation module, which is used to perform numerical simulation based on the adjusted borehole fitting results and generate numerical simulation results; The evaluation module is used to evaluate the numerical simulation results from multiple angles and generate corrected borehole layout information based on the evaluation results. The treatment module is used to treat gas boreholes by means of the corrected borehole layout information; Furthermore, the system also includes: The matching module is used to perform borehole type matching based on the coal seam occurrence information and the gas source information to obtain a set of suitable borehole types; The demand analysis module is used to analyze the gas control demand information to obtain the expected control effect information and control cost information. The model initialization module is used to construct the intelligent drilling layout model. It inputs the set of adaptable drilling types into the basic constraint module of the intelligent drilling layout model to complete the model initialization of the intelligent drilling layout model. The output module is used to input the expected governance effect information and the governance cost information into the borehole intelligent layout model and output the borehole fitting set. The first initial borehole fitting result module is used to obtain the initial borehole fitting result based on the borehole fitting set. The filtering module is used to filter non-tunnel boreholes based on the initial borehole fitting results and the acquired 3D scene to obtain a set of filtered and adjusted boreholes. The calculation module is used to calculate the influence value of roadway adjustment on the selected and adjusted borehole set, and obtain the influence value calculation result; The borehole set module is used to obtain the borehole set whose influence value calculation results satisfy a preset threshold in the selected and adjusted borehole set. The first adjustment borehole fitting result module is used to perform position fitting correction on the borehole set to obtain the adjustment borehole fitting result. The feature module is used to identify the impact features of borehole conflicts in the tunnel based on the acquired three-dimensional scene. The set module is used to perform an impact analysis on the borehole position of the initial borehole fitting result based on the borehole conflict impact characteristics, and generate a set of position-adjusted boreholes based on the impact analysis results. The second adjustment borehole fitting result module is used to obtain the adjustment borehole fitting result through the set of position-adjusted boreholes. Furthermore, the system also includes: The first evaluation result module is used to perform governance analysis on the numerical simulation results under multiple time stages, and generate the first evaluation result based on the governance analysis results and the demand matching degree of the gas governance demand information. The second evaluation result module is used to generate a second evaluation result based on the numerical simulation results, the fitting effect of the governance, and the demand matching degree of the gas governance demand information. The governance evaluation result module is used to obtain the governance evaluation result based on the first evaluation result and the second evaluation result.

Images