An intelligent design system for high-level gas extraction drilling

Abstract

The present invention discloses an intelligent design system for high-level gas extraction drilling, which relates to the technical field of high-level gas extraction. The key points of its technical solution are: combining the actual exploration and measurement conditions of the mine and setting up scenes in advance in the system based on OpenGL technology, preliminarily determining five drilling parameters that mainly affect high-level gas extraction through big data cloud analysis and calculation based on the measurement results and national coal mine standards, and accurately designing the high-level drilling parameter calculation system to obtain the three main determining parameters: the horizontal angle between the borehole and the return air channel, the borehole inclination angle, and the borehole length. Then, based on the calculation results, a simulation and visualization demonstration of the gas extraction drill bit operation trajectory is performed, so that the drilling parameters can be adjusted in real time and the drill bit movement trajectory can be grasped. It provides an automated means and scientific basis for high-level gas extraction work, effectively improves extraction efficiency, reduces the workload of technical personnel, and ensures the life safety of operators.

Description

Technical Field

[0001] The present invention relates to the technical field of high-level gas extraction, and more particularly to an intelligent design system for high-level gas extraction drilling. Background Art

[0002] With the development of computer technology, the extraction of high-gas has gradually developed and improved in the direction of intelligence. Through the intelligent design system of high-gas extraction drilling designed by our team, we overcome the shortcomings of the existing underground gas extraction drilling holes that rely on manual experience to allocate the number and location. It provides a scientific basis for the standardized, professional, intelligent and timely extraction of gas and other harmful gases, improves gas extraction efficiency, and prevents the occurrence of gas disasters. It is committed to protecting the safety of life and property and ensuring safe production in coal mines.

[0003] Due to its widespread presence underground and its destructive power, gas poses a serious threat to personal and property safety, earning it the nickname "the number one killer" of coal mine safety. Effectively preventing and controlling gas disasters is of vital practical significance to my country's existing underground coal mining industry.

[0004] Coalbed gas in central and western my country is characterized by widespread distribution of thick, single coal seams with large total gas reserves; poor coal seam permeability, strong gas adsorption capacity; wide variability in coal seam gas content, and high gas emission intensity. Currently, the primary technical solution to high gas extraction is drilling to extract coalbed gas. Therefore, precise and intelligent pre-design of gas drilling parameters is crucial for improving gas extraction efficiency, reducing resource waste, and lowering the incidence of gas accidents during coal mining.

[0005] Due to the severity of gas disasters in my country, coal mining enterprises have developed a large number of automation and information management software. Similar to this project is the 3D design software for coal mine gas extraction drilling developed based on the 3DMAx software platform.

[0006] In comparison, the high-level gas extraction drilling intelligent design system designed by our team can meet the needs of high-precision parameter design, effectively avoid errors in human operation, improve the design efficiency of drilling parameters, and intuitively observe the distribution of drilling holes and the status of the drill bit, providing intelligent guidance for gas extraction.

[0007] Sun Kelei and others developed a gas extraction borehole design and inversion system using the AutoCAD drawing platform. Through dynamic interaction, they reduced the amount of gas extraction borehole measurement and calculation required, significantly improving the accuracy of gas drilling inversion. However, for complex projects, using graphic design software fails to fully reflect design concepts and cannot accurately integrate with complex actual conditions. Field experience has shown that using graphic software to design gas extraction boreholes is labor-intensive and inefficient, and cannot effectively express borehole length and endpoint location. This project's visual demonstration perfectly addresses these issues, guiding gas extraction from goafs, effectively reducing gas outbursts from goafs, and preventing gas over-limits in working faces and upper corners. This ensures safe mining at the working face and safe coal production.

[0008] In summary, the following problems exist in the current high-level borehole gas extraction:

[0009] 1) Gas extraction drilling design mainly relies on manual calculations, which is time-consuming, labor-intensive and prone to errors.

[0010] 2) Most of the design software used by coal mine design units is based on the AutoCAD platform, which cannot vividly guide and simulate actual three-dimensional scenes.

[0011] 3) The extraction drilling design relies on manual experience and is not reasonable and accurate enough. Summary of the Invention

[0012] The purpose of the present invention is to provide an intelligent design system for high-level gas extraction drilling, which combines the actual exploration and measurement conditions of the mine and performs advance scene settings in the system based on OpenGL technology. Based on the measurement results and national coal mine standards, the five drilling parameters that mainly affect high-level gas extraction are preliminarily determined through big data cloud analysis and calculation. The three main determining parameters, namely the horizontal angle between the borehole and the return air channel, the borehole inclination angle and the borehole length, are accurately designed according to the high-level drilling parameter calculation system. Then, based on the calculation results, a simulation and visualization demonstration of the gas extraction drill bit operation trajectory is performed, so that the drilling parameters can be adjusted in real time and the drill bit movement trajectory can be grasped. It provides an automated means and scientific basis for high-level gas extraction work, effectively improves extraction efficiency, reduces the workload of technical personnel, and ensures the life safety of operators.

[0013] The above technical objectives of the present invention are achieved through the following technical solutions: an intelligent design system for high-level gas extraction drilling, the system comprising:

[0014] Mine actual condition setting system: used to simulate the real underground environment;

[0015] Drilling parameter calculation system: perform data analysis to determine initial parameters and accurately design different drilling parameters;

[0016] Visual demonstration system: used to simulate the drilling distribution and the running trajectory of the drill bit.

[0017] The present invention is further configured as follows: the actual mine condition setting system uses existing measuring devices to basically determine the geological conditions of the part that needs to be extracted gas and input relevant parameters into the system. Then the system generates a 3D model that is highly similar to the actual mine based on three-dimensional geological modeling and OpenGL technology, which is convenient for operators to observe and correct.

[0018] The present invention is further configured as follows: the drilling parameter calculation system obtains the horizontal distance Y between the drilling end point and the opening point, the horizontal projection length X of the drilling hole in the wind direction, and the height H between the drilling end point and the coal seam roof according to the actual situation of the mine. After these initial values ​​​​and the coal seam inclination α, the horizontal distance D between the drilling opening point and the return air channel, and the horizontal distance S between the drilling opening point and the return air channel are designed and input in advance in the program, the high-level drilling parameter calculation program calculates the horizontal angle between the drilling hole and the return air channel through data calculation and analysis according to the theoretical reference formula. , drilling inclination and drilling length L, these three decisive values;

[0019] The calculation formula of the horizontal angle γ between the borehole and the return air channel is as follows:

[0020] ;

[0021] Drilling inclination The calculation formula is as follows:

[0022] ;

[0023] The calculation formula for drilling length L is as follows:

[0024] .

[0025] The present invention is further configured as follows: the visualization demonstration system uses scientific computing and visualization technology combined with software to establish a simulation operation model based on the results obtained by the actual mine conditions setting system and the drilling parameter calculation system, and after performing data analysis, clearly demonstrates the operation trajectories of different drill bits and the overall drilling position distribution.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1) Traditional high-level gas extraction borehole design relies primarily on manual field measurements and calculations. The intelligent high-level gas extraction borehole design system provided by this invention reduces manual calculations, accurately derives multiple required parameters through pre-simulation of the actual environment, and offers high flexibility, facilitating data modification and optimization. It also provides fast and efficient design results, saving manpower and resources.

[0028] 2) After the traditional high-level gas extraction drilling hole design, it is impossible to intuitively and finely see the borehole size and borehole distribution position, etc. The high-level gas extraction drilling hole intelligent design system provided by the present invention has added a visual demonstration part, which intuitively reflects the distribution position of the borehole and the simulated operation of the drill bit. It can express the design results concisely and clearly, facilitates subsequent design operations, corrections, etc., and has high operability for subtle problems.

[0029] 3) The system visualization module can realize accurate data analysis and simulation, provide a clear interface that is relatively accurate and easy to operate and change, and combine it with the actual situation to generate the optimal drilling distribution configuration plan and drill bit operation trajectory simulation.

[0030] 4) Gas has always been a major hidden danger to coal mine production safety, making comprehensive coal mine gas management particularly important. Currently, borehole gas extraction technology is the most widely used and effective technology. Gas, as a new energy source, should be extracted and utilized rationally. Before conducting high-level drilling to extract gas, operators must clearly define the specific location of the construction borehole, including the horizontal angle between the borehole and the return air lane, the borehole inclination, and the borehole length. Manual calculations based on relevant formulas are difficult to guarantee accuracy and are time-consuming. To ensure accurate and efficient gas extraction through high-level drilling, a system program can be used to accurately and quickly derive relevant parameters, thereby determining the optimal high-level drilling area and distribution. The system's visual demonstration process also allows for gas extraction animation simulations, providing an intuitive understanding of the distribution of pre-extraction borehole locations.

[0031] 5) The intelligent design system for high-level gas extraction drilling can perform parameter calculation and visual demonstration. The parameter calculation can calculate the relevant parameters in real time based on the input values, and then simulate gas extraction through visual demonstration to intuitively feedback the drilling gas extraction situation under different values. Parameter changes can be made in a timely manner to select the optimal extraction method, providing scientific assistance for the development of gas extraction work and promoting the extraction technology to move towards intelligence and efficiency.

[0032] 6) The intelligent design system can be used to quickly and easily calculate numerical values ​​for simulation, and can adjust parameters in a timely manner, avoiding the difficulties caused by inappropriate drilling location selection in actual extraction. At the same time, the use of system software calculations reduces labor costs and the time to determine drilling parameters, improves the design efficiency of high-level gas extraction drilling holes, and enhances the intelligence and automation level of high-level gas extraction work, effectively improving gas extraction efficiency and greatly promoting the development and utilization of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the main technical roadmap of the present invention;

[0034] Figure 2 It is a diagram of the principle of the calculation program of the present invention;

[0035] Figure 3 It is a partial diagram of the data design in an embodiment of the present invention;

[0036] Figure 4 This is a calculation result diagram in an embodiment of the present invention;

[0037] Figure 5 This is the initial interface of the visual demonstration system in the embodiment of the present invention;

[0038] Figure 6 This is a diagram of the overall composition of the system of the present invention;

[0039] Figure 7 It is the overall principle diagram of the system of the present invention;

[0040] Figure 8 This is a process diagram of a visual demonstration system in an embodiment of the present invention;

[0041] Figure 9 This is an overall visual demonstration diagram of an embodiment of the present invention;

[0042] Figure 10 These are the specific parameters and operation trajectory of drilling No. 5 in the embodiment of the present invention. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-10 The present invention is described in further detail.

[0044] Example: An intelligent design system for high-level gas extraction drilling, such as Figure 1-10 As shown, it includes a mine actual condition setting system, a high-position drilling parameter calculation program and a visual demonstration system.

[0045] The mine condition setting system uses existing measurement equipment to basically determine the geological conditions of the part that needs to be extracted gas and enters the relevant parameters into the system. The system then generates a 3D model that is highly similar to the actual mine based on three-dimensional geological modeling and OpenGL technology, making it easier for operators to observe and correct.

[0046] 1) Based on the actual situation of the mine, the horizontal distance Y between the end point of the drill hole and the opening point, the horizontal projection length X of the drill hole in the direction of the wind column, and the height H between the end point of the drill hole and the coal seam roof are obtained. After these initial values ​​​​and the coal seam inclination α, the horizontal distance D between the drill hole opening point and the return air lane, and the horizontal distance S between the drill hole opening point and the return air lane are pre-designed and input into the program, the high-level drilling parameter calculation program calculates the horizontal angle between the drill hole and the return air lane through data analysis according to the theoretical reference formula. , drilling inclination And drilling length L are the three decisive values.

[0047] 2) The reference formula of system theory is as follows:

[0048] Horizontal angle between drilling hole and return air channel :

[0049] ;

[0050] Drilling inclination :

[0051] ;

[0052] Drilling length L:

[0053] .

[0054] 3) The main page of the calculation program is as follows Figure 2 shown

[0055] in accordance with Figure 2 The principle in the above can be used to further design the drilling parameters. The data design process is as follows: Figure 3 shown.

[0056] On the right side of this section, a pop-up window will be displayed to fully explain the actual meaning and design standards of each parameter, which can provide real-time reminders to help operators perform accurate operations. After the parameter design is completed, click Calculate, and the system will generate calculation results for multiple sets of data, including the horizontal angle between the drill hole and the return air channel. , drilling inclination and drilling length L are the three decisive result values, which provide the basis for the subsequent simulation demonstration system. The parameter calculation results are as follows Figure 4 shown.

[0057] There is still a pop-up window on the right side of the calculation part to further explain and limit the parameters, which can remind the operator in real time whether there is unreasonable data, avoid the accumulation of design errors and affect subsequent simulation demonstrations.

[0058] 1) Based on the actual conditions of the mine, the system is set up and the results of the calculation system are obtained. Scientific computing and visualization technology are combined with software to establish a simulation operation model. After data analysis, the operation trajectory of different drill bits and the overall location distribution of the drill holes are clearly demonstrated.

[0059] 2) Visual simulation demonstration system such as Figure 5 shown.

[0060] Click Start to perform a visual simulation. The system displays the simulated trajectory of the drill bit and the distribution of drilling holes in a given scenario, which can help the operator clearly locate and perform subsequent operations.

[0061] The system utilizes existing equipment to perform a preliminary assessment of the mine's geological conditions. After entering specific values ​​or levels of relevant parameters, such as coal seam depth, thickness, and structure, into a setup module, the system utilizes digital analysis, 3D geological modeling, and OpenGL-based simulation to generate a 3D underground model that closely resembles the actual environment where gas extraction is required. Once setup is complete, data can be deleted and re-modeled. The system is agile and easy to use, effectively reducing workload and ensuring the accuracy of visualizations.

[0062] 1) Before performing the calculation, the following should be clearly determined:

[0063] (1) The actual conditions of the coal mine, such as the distribution characteristics of the "three zones" of the overburden in the main mining face, the pressure step distance, and the distribution range of the overburden fracture zone.

[0064] (2) National regulations on gas extraction, such as the Basic Indicators for Coal Mine Gas Extraction.

[0065] (3) Relevant operating parameters of the selected drilling rig, etc. Determine the relevant initial parameters of the high-position drilling site and the borehole and the layout of the drilling site.

[0066] 2) Based on the above standards and in combination with the actual conditions of different mines, the parameters are preliminarily determined and filled in the table. The program can calculate multiple sets of values ​​simultaneously in one operation, that is, the basic parameters of multiple boreholes can be set and calculated at the same time. Multiple sets of values ​​can also be deleted and modified at any time. The operator can compare and correct the calculation results in real time, which greatly avoids the errors of manual calculation and design, and improves work efficiency and the degree of design automation and intelligence.

[0067] The main calculation and principle of this system are as follows Figure 7As shown in the figure, the system uses a data language algorithm and only needs to input known data in the specified interface for preliminary data collection. It can then perform accurate calculations and quickly obtain the final data results of the drilling parameters and determine the three decisive values ​​of the horizontal angle γ between the lower borehole and the return air channel, the drilling inclination angle β, and the drilling length L. Compared with other design system interfaces, the system is simpler and easier to operate.

[0068] The visualization demonstration system sets the initial settings of the system according to the actual conditions of the mine and the calculation results of the high-gas mine calculation program. It spontaneously collects multi-dimensional material data for background system analysis to obtain the coordinate values ​​of multiple drilling measurement points in the established three-dimensional space to preliminarily determine the drilling points on the well wall, and then simulates and generates the drill bit operation trajectory curve to accurately determine the drilling point and vividly display the drill bit operation status. At the same time, the visualization simulation results will change with the change of design parameters, intuitively and concisely simulate the drilling and extraction process to coal mine technicians, further display the results of the drilling parameter design system, and make preliminary analysis for the actual drilling and extraction work. The simulation results have high reliability, flexibility and accuracy.

[0069] 1) The system displays the drill bit simulation operation and drilling distribution in a given scenario, which can help the operator to clearly locate and perform subsequent operations. Figure 8 shown.

[0070] 2) Presentation results section:

[0071] On the left side of the results section is a list of multiple sets of drilling data in the parameter design program system, which helps operators to conduct selective demonstration or overall demonstration for pre-set drilling numbers. The main part can clearly see the distribution of the overall drilling under the given coal seam conditions and the corresponding running trajectories of drill bits with different numbers. When demonstrating a single drilling simulation, the image quality is clear, the parameter records are detailed, the scene simulation is realistic and accurate, and the visual demonstration is clear and concise. It provides coal mine operators with accurate data information with extremely geometric characteristics, reduces the workload of technicians, and provides scientific guidance for actual drilling gas extraction work. The overall demonstration results are as follows: Figure 9 shown.

[0072] The visual demonstration of this system can clearly display the data results while analyzing and simulating the data, and provide an operation plan that is closely integrated with the actual situation. At the same time, it can also separately demonstrate the operation trajectory of a certain numbered drill bit and the distribution of drill holes under given mine conditions, such as Figure 10 shown.

[0073] In the current actual construction process of gas extraction drilling, due to the influence of natural, technical and human factors, the actual drilling trajectory often deviates from the designed trajectory, which easily causes the drilling deviation and fails to achieve the expected effective extraction purpose.

[0074] Based on the borehole deviation patterns derived from this system, we analyze the causes of borehole deviation, which are multifaceted and can be broadly categorized into geological, technical, and process factors. The deviation patterns for ascending boreholes along the bedding plane show that the probability of an ascending borehole deviating upward is greater than the probability of a descending borehole deviating downward, the probability of a left deviation is less than the probability of a right deviation, and the probability of trajectory overlap is low (deep boreholes are prone to deviation). The deviation patterns for descending boreholes along the bedding plane show that the probability of an ascending borehole deviating upward is less than the probability of a descending borehole deviating downward, the probability of a left deviation is less than the probability of a right deviation, and the probability of trajectory overlap is low (deep boreholes are prone to deviation). The deviation patterns for ascending boreholes across the bedding plane show that the probability of an ascending borehole deviating upward is greater than the probability of a descending borehole deviating downward, the probability of a left deviation is less than the probability of a right deviation, and the probability of trajectory overlap accounts for a certain proportion (shallow boreholes are less prone to deviation). The deviation patterns for descending boreholes across the bedding plane show that the probability of an ascending borehole deviating upward is less than the probability of a descending borehole deviating downward, the probability of a left deviation is roughly the same as the probability of a right deviation, and the probability of trajectory overlap is low. The angle hedging method was used to correct the deviation, and after the correction, the offset distance of the final hole position was greatly reduced.

[0075] According to the above rules, the relevant parameters can be changed and the system can be used again for design simulation to ensure the accuracy and rationality of the data and provide guidance for gas extraction work.

[0076] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An intelligent design system for high-level gas extraction drilling, characterized by: The system comprises: Mine actual condition setting system: used to simulate the real underground environment; Drilling parameter calculation system: perform data analysis to determine initial parameters and accurately design different drilling parameters; Visual demonstration system: used to simulate the drilling distribution and the running trajectory of the drill bit; The actual mine condition setting system uses existing measurement equipment to basically determine the geological conditions of the area where gas extraction is required and inputs relevant parameters into the system. The system then generates a 3D model that is highly similar to the actual mine based on three-dimensional geological modeling and OpenGL technology, making it easier for operators to observe and correct. The drilling parameter calculation system obtains the horizontal distance Y between the drilling end point and the opening point, the horizontal projection length X of the drilling hole in the wind direction, and the height H between the drilling end point and the coal seam roof through the actual situation of the mine. After these initial values ​​​​and the coal seam inclination α, the horizontal distance D between the drilling opening point and the return air lane, and the horizontal distance S between the drilling opening point and the return air lane are designed in advance in the high-level drilling parameter calculation program, the high-level drilling parameter calculation program calculates the horizontal angle between the drilling hole and the return air lane through data analysis according to the theoretical reference formula. , drilling inclination and drilling length L, these three decisive values; The horizontal angle between the drill hole and the return air channel The calculation formula is as follows: ； Drilling inclination The calculation formula is as follows: ； The calculation formula for drilling length L is as follows: 。 2. The intelligent design system for high-level gas extraction drilling according to claim 1 is characterized by: The visualization demonstration system uses scientific computing and visualization technology combined with software to establish a simulation operation model based on the results obtained from the actual mine conditions setting system and the drilling parameter calculation system. After data analysis, it clearly demonstrates the operation trajectories of different drill bits and the overall drilling position distribution.

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