Horizontal directional drilling mud proportion control method and device, terminal and storage medium

Abstract

The invention provides a horizontal directional drilling mud proportion control method and device, a terminal and a storage medium. The horizontal directional drilling mud proportion control method comprises the steps that geological sample parameters of a target drilling area are obtained; in fact, the geological sample comprises a rock sample and a soil sample; determining the geological type of the target drilling area according to the geological sample parameters of the target drilling area; and according to the geological type of the target drilling area, determining the ratio of the target slurry. The geological type of the drilling area is determined according to the geological sample, so that the mud ratio is adjusted and optimized, and the drilling rate can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of drilling technology, and in particular to a method, device, terminal and storage medium for controlling mud ratio in horizontal directional drilling. Background Art

[0002] In the process of horizontal directional drilling, the drilling rate directly affects the efficiency and quality of the drilling project. At present, the traditional horizontal directional drilling method often cannot guarantee a high drilling rate under complex geological conditions, and is prone to problems such as deviation from the target layer and drilling difficulties.

[0003] In the prior art, drilling parameters are usually monitored and deviations are corrected in real time to improve the drilling rate; or drilling trajectories are reasonably planned to improve the drilling rate. The prior art does not consider the impact of mud ratio on the drilling rate, which limits the improvement of the drilling rate. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, terminal and storage medium for controlling mud ratio in horizontal directional drilling, so as to solve the problem that the influence of mud ratio on drilling rate is not considered in the prior art, thus limiting the improvement of drilling rate.

[0005] In a first aspect, an embodiment of the present invention provides a method for controlling a horizontal directional drilling mud ratio, comprising:

[0006] Obtain geological sample parameters of the target drilling area; in fact, geological samples include: rock samples and soil samples;

[0007] Determine the geological type of the target drilling area based on the geological sample parameters of the target drilling area;

[0008] Determine the target mud ratio based on the geological type of the target drilling area.

[0009] Optionally, materials for forming the target mud include: water, carboxymethyl cellulose, thickener 80A-51, potassium polyacrylate and sodium carbonate.

[0010] Optionally, the target mud ratio is determined according to the geological type of the target drilling area, including:

[0011] Determine the mud viscosity and pH value according to the geological type of the target drilling area;

[0012] Determine the target mud ratio based on mud viscosity and pH value.

[0013] Optionally, the mud viscosity and pH value are determined according to the geological type of the target drilling area, including:

[0014] If the geological type is thin-bed limestone, the mud viscosity is no more than 30s and the pH value is 7.5-8;

[0015] If the geological type is mudstone or coal seam, the mud viscosity is 33s~34s and the pH value is 8~9.5.

[0016] Optionally, if the geological type is thin-bed limestone, the target mud weight ratio is:

[0017] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:2:25:25:2.

[0018] Optionally, if the geological type is mudstone or coal seam, the target mud weight ratio is:

[0019] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:6:75:75:6.

[0020] Optionally, the geological sample parameters include: hardness of the rock sample, mineral composition of the rock sample, porosity of the rock sample, particle characteristics of the soil sample, water content of the soil sample and compressibility of the soil sample.

[0021] In a second aspect, an embodiment of the present invention provides a horizontal directional drilling mud ratio control device, comprising:

[0022] Obtaining geological sample parameters of the target drilling area; wherein the geological samples include: rock samples and soil samples;

[0023] Determine the geological type of the target drilling area based on the geological sample parameters of the target drilling area;

[0024] Determine the target mud ratio based on the geological type of the target drilling area.

[0025] In a third aspect, an embodiment of the present invention provides a terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of a method for controlling the drilling rate in horizontal directional drilling provided in the first aspect or any possible implementation of the first aspect are implemented.

[0026] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of a method for controlling the drilling rate in horizontal directional drilling provided in the first aspect or any possible implementation of the first aspect.

[0027] The embodiment of the present invention provides a method, device, terminal and storage medium for controlling the ratio of mud in horizontal directional drilling. The above-mentioned method for controlling the ratio of mud in horizontal directional drilling includes: obtaining geological sample parameters of the target drilling area; in fact, the geological sample includes: rock samples and soil samples; determining the geological type of the target drilling area according to the geological sample parameters of the target drilling area; determining the ratio of the target mud according to the geological type of the target drilling area. In the embodiment of the present invention, the address sample of the target drilling area is collected, and the geological type of the drilling area is determined according to the geological sample, so as to adjust and optimize the mud ratio, which can effectively improve the drilling rate and break through the limitation of the drilling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a flow chart of a method for controlling a ratio of mud in horizontal directional drilling provided by an embodiment of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a horizontal directional drilling mud ratio control device provided by an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of a terminal device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0034] The drilling rate is an important indicator in the field of oil exploration and development. It refers to the ratio of the number of wells that encounter a specific geological layer (such as oil layer, gas layer, reservoir, etc.) during the drilling process to the total number of wells drilled in a certain exploration area. It intuitively reflects the probability of the specific geological layer being discovered by drilling in the exploration area. In the process of horizontal directional drilling, the drilling rate directly affects the efficiency and quality of the drilling project.

[0035] During directional drilling, mud is used to cool and lubricate the drill bit, carry cuttings, stabilize the wellbore wall, transmit power and signals, etc. The performance of the mud will affect the wellbore trajectory control, and different formations have different requirements for directional drilling and mud performance. Therefore, whether the mud ratio is appropriate has a direct impact on the drilling rate.

[0036] In the prior art, the drilling rate does not take into account the influence of the mud ratio, which limits the improvement of the drilling rate.

[0037] Based on the above, see Figure 1 , which shows a flow chart of a method for controlling the ratio of horizontal directional drilling mud provided by an embodiment of the present invention, and is described in detail as follows:

[0038] The above-mentioned horizontal directional drilling mud ratio control method comprises:

[0039] S101: Obtain geological sample parameters of the target drilling area; in fact, geological samples include: rock samples and soil samples;

[0040] In the embodiment of the present invention, field sampling is performed in the target drilling area, and rock samples and soil samples are collected for analysis to determine the geological type.

[0041] For rock samples, these parameters may include: hardness of rock samples, mineral composition of rock samples, porosity of rock samples. These parameters reflect the strength, drillability and permeability of rock samples, etc., and are used to select different mud ratios.

[0042] For soil samples, these parameters include: particle characteristics of soil samples, water content of soil samples and compressibility of soil samples. These parameters reflect the stability and bearing capacity of the soil. For example, if there is a soft soil layer in the target drilling area, special attention should be paid to the stability of the hole wall, and special drilling methods and mud ratios may be required.

[0043] At the same time, the above parameters can also be used to guide drilling methods, drill bit types, drilling parameters, etc.

[0044] S102: Determine the geological type of the target drilling area according to the geological sample parameters of the target drilling area;

[0045] Different geological types require different mud ratios.

[0046] For example, for hard rock formations such as granite, the mud should effectively carry the cuttings without increasing circulation resistance due to excessive viscosity.

[0047] For example, in soft rock formations such as shale, the viscosity of the mud is usually high to prevent the wellbore from collapsing. The mud forms a tough mud cake on the wellbore to protect the wellbore.

[0048] Based on this, in the embodiment of the present invention, the geological type of the target drilling area is determined to determine the target mud ratio, so as to meet the requirements of different geological types on the mud ratio and improve the drilling rate.

[0049] S103: Determine the target mud ratio according to the geological type of the target drilling area.

[0050] Different proportions are matched according to different geological types to match the mud with the geological type and improve the drilling rate.

[0051] In the embodiment of the present invention, the mud ratio is adjusted according to the geological type, and the drilling rate is further improved by adjusting and optimizing the mud ratio, which can effectively break through the limitation of the drilling rate.

[0052] In a possible implementation, materials for forming the target slurry may include: water, carboxymethyl cellulose, viscosity enhancer 80A-51, potassium polyacrylate and sodium carbonate.

[0053] Carboxymethyl cellulose (CMC) is a cellulose derivative. It is produced by the etherification reaction of cellulose with chloroacetic acid under alkaline conditions. From the chemical structure point of view, it is a cellulose molecular chain with carboxymethyl (-CH2COO - ) functional groups. The introduction of these functional groups changes the original properties of cellulose, making it more water-soluble and chemically active. Carboxymethyl cellulose can increase the viscosity of the mud, thereby effectively carrying the cuttings. The high-viscosity CMC solution can suspend the cuttings in the mud, prevent the cuttings from accumulating at the bottom of the well, and ensure the smooth progress of the drilling work. At the same time, it can also form a protective film on the well wall, reduce the friction of the well wall, and prevent the well wall from collapsing.

[0054] Thickener 80A-51 is a complex polymer compound, a copolymer of acrylamide and sodium acrylate. Through polymerization, a polymer with a certain molecular weight and specific functional groups is formed, which gives it the property of thickening. It has good solubility in many organic solvents and some aqueous systems.

[0055] Potassium polyacrylate, commonly known as potassium polyacrylate, is a high molecular polymer whose molecular chain is polymerized from potassium acrylate monomers. It has good water solubility and its solution has high viscosity. It can increase the viscosity and shear force of the mud, thereby effectively carrying the cuttings. Its high viscosity characteristics can suspend the cuttings in the mud, prevent the cuttings from accumulating at the bottom of the well, and ensure the smooth progress of drilling. At the same time, it can also form a protective film on the well wall, reduce the friction of the well wall, and play a role in stabilizing the well wall.

[0056] Sodium carbonate (Na2CO3), commonly known as soda ash, is an alkaline substance that can be used to adjust the pH value in mud to a suitable range. It can also precipitate metal ions in groundwater, prevent them from having adverse chemical reactions with other components in the mud, maintain the stability and rheological properties of the mud, and prevent the mud from thickening or flocculation. It can also promote the dispersion of solid particles in the mud, improve the suspension capacity of the mud, enable the cuttings to be better suspended in the mud, and prevent the cuttings from settling and affecting the drilling work.

[0057] In the embodiment of the present invention, the thickener 80A-51 is used to replace the PAM in the mud in the prior art, which has better water solubility and discards the bentonite and barite powder in the mud in the prior art, greatly reducing the cost of the mud. At the same time, the various components of the mud in the embodiment of the present invention are environmentally friendly materials, which greatly reduces the pollution of the mud to the environment. In summary, the mud ratio provided by the embodiment of the present invention not only improves the sand carrying effect and the stability of the hole wall, reduces the occurrence of accidents during the drilling process, but also reduces costs and environmental pollution.

[0058] In a possible implementation, S103 may include:

[0059] S1031: Determine the viscosity and pH value of the mud according to the geological type of the target drilling area;

[0060] S1032: Determine the target mud ratio according to the mud viscosity and pH value.

[0061] Different geological types have different requirements on mud viscosity and pH value. Therefore, in the embodiment of the present invention, the mud viscosity and pH value are determined according to the geological type, and then the ratio of the target mud is determined.

[0062] In a possible implementation, S1031 may include:

[0063] 1. If the geological type is thin-layer limestone, the mud viscosity should not exceed 30s and the pH value should be 7.5-8;

[0064] 2. If the geological type is mudstone or coal seam, the mud viscosity is 33s~34s and the pH value is 8~9.5.

[0065] For mudstone or coal seams, drilling efficiency will be affected after a viscosity greater than 37s. Therefore, the mud viscosity is determined to be 33s to 34s.

[0066] In a possible implementation, if the geological type is thin-bed limestone, the weight ratio of the target mud may be:

[0067] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:2:25:25:2.

[0068] When directional drilling is performed in thin limestone, the mud ratio provided by the embodiment of the present invention can ensure the stability of sand carrying and wall protection, thereby ensuring the safety of drilling.

[0069] Specifically, 5m 3 The water needs to be mixed with 12.5kg of carboxymethyl cellulose, 156.25kg of viscosity enhancer 80A-51, 156.25kg of potassium hydroxide and 12.5kg of soda ash.

[0070] In a possible implementation, if the geological type is mudstone or coal seam, the weight ratio of the target mud may be:

[0071] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:6:75:75:6.

[0072] For rock formations that are prone to collapse, such as mudstone or coal seams, it is necessary to increase the viscosity. The ratio provided in the embodiment of the present invention can both safely protect the wall and improve the drilling efficiency.

[0073] Specifically, 5m 3 The water needs to be mixed with 37.5kg of carboxymethyl cellulose, 390.63kg of viscosity enhancer 80A-51, 390.63kg of potassium hydroxide and 37.5kg of soda ash.

[0074] Furthermore, the drilling rate can be improved by planning the drilling trajectory, determining the combination of drilling parameters, etc.

[0075] (1) Planning the drilling trajectory

[0076] Based on the laboratory analysis results combined with the existing geological data, reasonable drilling angles and curvature radii are designed in professional design software according to the inclination of the surveyed strata and the hardness changes of the rocks to ensure a smooth and efficient drilling process.

[0077] (2) Determine the drilling parameter combination plan

[0078] According to different formation conditions and drilling diameters, choose the appropriate drill bit type and size. For hard rock layers, you can choose diamond drill bits or roller drill bits; for soft soil layers, you can choose spiral drill bits or scraper drill bits.

[0079] Combined with the drill bit type and formation characteristics, determine the range of drilling parameters such as drilling pressure, rotation speed, torque, etc. By combining theoretical calculations with practical experience, formulate parameter combination schemes under different formation conditions. When drilling hard rock layers, higher drilling pressure and lower rotation speed are required to improve drilling efficiency; when drilling soft soil layers, the drilling pressure can be appropriately reduced and the rotation speed can be increased to avoid hole wall collapse.

[0080] Consider the performance and limitations of the drilling equipment to ensure that the drilling parameters are within the safety range of the equipment. At the same time, reserve a certain margin so that adjustments can be made according to the actual situation during the drilling process.

[0081] (3) Drilling process control

[0082] The embodiment of the present invention may also be provided with a pressure sensor, a temperature sensor, a gamma ray sensor, etc.

[0083] Pressure sensors can measure parameters such as drilling pressure, mud pressure and annular pressure. By monitoring the changes in these parameters, we can understand the working status of the drill bit and the situation in the hole. For example, if the drilling pressure suddenly increases, it may be due to encountering a hard rock layer or serious wear of the drill bit; if the mud pressure increases, it may be due to blockage or leakage in the hole.

[0084] Temperature sensors can measure the temperature of the drill bit and mud. High temperatures may cause damage to the drill bit and degrade mud performance, so cooling measures need to be taken in time. The circulation rate of the mud can be increased or the drilling speed can be reduced to reduce the temperature of the drill bit and mud.

[0085] Speed ​​and torque sensors can measure the speed and torque of the drill bit. By monitoring the changes in these parameters, you can understand the stability and efficiency of the drilling process. If the torque suddenly increases, it may be that the drill bit is stuck or encounters an obstacle; if the speed drops, it may be that the drill bit is severely worn or the drilling resistance increases.

[0086] The data transmission device can transmit the data measured by the sensor to the ground receiving device in real time. Currently, there are two commonly used transmission methods: wired transmission and wireless transmission. The wired transmission method has high reliability, but it requires laying cables inside the drill pipe, which increases the cost and complexity of drilling; the wireless transmission method is convenient and fast, but the signal is easily interfered and the transmission distance is limited.

[0087] The ground receiving equipment receives and processes the measurement while drilling data and displays it on the monitoring screen so that the operator can monitor the drilling process in real time. The operator can adjust the drilling parameters and take corrective measures in time according to the measurement data.

[0088] When the measurement while drilling system finds that the drilling trajectory deviates from the designed target layer, it is necessary to take corrective measures in time. The correction methods mainly include adjusting the drilling direction, changing the drilling pressure and rotation speed, etc., to improve the drilling rate.

[0089] The drilling trajectory can be gradually returned to the target layer by adjusting the inclination and azimuth of the drill bit. When adjusting the drilling direction, the adjustment angle and drilling distance are accurately calculated based on the measurement data while drilling and the expected spatial position of the formation to avoid excessive or insufficient correction.

[0090] Changing drilling pressure and rotation speed can also play a certain role in correcting deviation. When the drilling trajectory deviates from the target layer, the drilling pressure can be appropriately increased or the rotation speed can be reduced to make the drill bit drill in the direction of the target layer.

[0091] At the same time, various parameters of mud can be tested regularly, such as viscosity, density, pH value, etc. According to the test results, the mud formula can be adjusted in time to ensure that the mud performance meets the drilling requirements.

[0092] If the viscosity of the mud is too low, a viscosity enhancer can be added to improve the mud's sand carrying capacity and hole wall stability; if the density of the mud is too low, a weighting agent such as barite powder, iron ore powder, etc. can be added to balance the formation pressure, prevent hole wall collapse, and maintain hole wall stability.

[0093] At the same time, attention should be paid to the circulation and purification of mud. Regularly clean the debris and impurities in the mud pool and circulation system to keep the mud clean. If the mud is contaminated or its performance is seriously degraded, the mud needs to be replaced in time.

[0094] (4) Drilling rate assessment

[0095] During the drilling process, the drilling encounter rate is evaluated at certain drilling distances or time intervals. The evaluation method can be to compare the actual drilling trajectory with the designed trajectory, analyze the cuttings composition, measure the formation gamma value, etc.

[0096] Comparing the actual drilling trajectory with the designed trajectory can intuitively understand the deviation of the drilling trajectory. If the deviation is large, it is necessary to take corrective measures or adjust the drilling plan in time. Analysis of the cuttings composition can determine whether the target layer is encountered. If the characteristic mineral content of the target layer in the cuttings is high, it means that the drilling rate is high; otherwise, it is necessary to further adjust the drilling parameters or change the drilling trajectory. Measuring the formation gamma value can understand the changes in the formation, which is also of certain reference value for judging whether the borehole passes through the target layer.

[0097] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0098] The following is an embodiment of the device of the present invention. For details not described in detail therein, reference may be made to the corresponding method embodiment described above.

[0099] Figure 2 The structural schematic diagram of the horizontal directional drilling mud ratio control device provided by the embodiment of the present invention is shown. For the convenience of explanation, only the part related to the embodiment of the present invention is shown, which is described in detail as follows:

[0100] like Figure 2 As shown, the horizontal directional drilling mud ratio control device includes:

[0101] A parameter acquisition module is used to acquire geological sample parameters of the target drilling area; wherein the geological samples include: rock samples and soil samples;

[0102] A geological type determination module, used to determine the geological type of the target drilling area according to the geological sample parameters of the target drilling area;

[0103] The ratio output module is used to determine the ratio of the target mud according to the geological type of the target drilling area.

[0104] In a possible implementation, materials for forming the target slurry may include: water, carboxymethyl cellulose, viscosity enhancer 80A-51, potassium polyacrylate and sodium carbonate.

[0105] In a possible implementation, the ratio output module may include:

[0106] A viscosity determination unit, used to determine the viscosity and pH value of the mud according to the geological type of the target drilling area;

[0107] The ratio matching unit is used to determine the ratio of the target mud according to the mud viscosity and pH value.

[0108] In a possible implementation, the viscosity determination unit may be specifically configured to:

[0109] 1. If the geological type is thin-layer limestone, the mud viscosity should not exceed 30s and the pH value should be 7.5-8;

[0110] 2. If the geological type is mudstone or coal seam, the mud viscosity is 33s~34s and the pH value is 8~9.5.

[0111] In a possible implementation, if the geological type is thin-bed limestone, the weight ratio of the target mud may be:

[0112] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:2:25:25:2.

[0113] In a possible implementation, if the geological type is mudstone or coal seam, the weight ratio of the target mud may be:

[0114] Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:6:75:75:6.

[0115] In a possible implementation, the geological sample parameters may include: hardness of the rock sample, mineral composition of the rock sample, porosity of the rock sample, particle characteristics of the soil sample, water content of the soil sample, and compressibility of the soil sample.

[0116] Figure 3 Schematic diagram of a terminal device 3 provided in an embodiment of the present invention. Figure 3 As shown, the terminal device 3 of this embodiment includes: a processor 30 and a memory 31. The memory 31 is used to store a computer program 32, and the processor 30 is used to call and run the computer program 32 stored in the memory 31 to execute the steps in the above-mentioned embodiments of the horizontal directional drilling mud ratio control method, for example Figure 1 Alternatively, the processor 30 is used to call and run the computer program 32 stored in the memory 31 to implement the functions of each module / unit in the above-mentioned device embodiments, such as Figure 2 The functions of modules 21 to 23 are shown.

[0117] Exemplarily, the computer program 32 may be divided into one or more modules / units, one or more modules / units are stored in the memory 31, and are executed by the processor 30 to implement the present invention. One or more modules / units may be a series of computer program instruction segments that can implement specific functions, and the instruction segments are used to describe the execution process of the computer program 32 in the terminal device 3. For example, the computer program 32 may be divided into Figure 2 Modules / units 21 to 23 are shown.

[0118] The terminal device 3 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device 3 may include, but is not limited to, a processor 30 and a memory 31. Those skilled in the art will appreciate that Figure 3 It is only an example of terminal device 3 and does not constitute a limitation on terminal device 3. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal may also include input and output devices, network access devices, buses, etc.

[0119] The processor 30 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0120] The memory 31 may be an internal storage unit of the terminal device 3, such as a hard disk or memory of the terminal device 3. The memory 31 may also be an external storage device of the terminal device 3, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the terminal device 3. The memory 31 is used to store computer programs and other programs and data required by the terminal. The memory 31 may also be used to temporarily store data that has been output or is to be output.

[0121] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0122] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0123] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0124] In the embodiments provided by the present invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0125] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0126] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0127] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. Computer-readable media may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0128] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A method for controlling mud ratio in horizontal directional drilling, characterized in that: include: Obtain geological sample parameters of the target drilling area; In fact, the geological samples include: rock samples and soil samples; Determining the geological type of the target drilling area according to the geological sample parameters of the target drilling area; The target mud ratio is determined according to the geological type of the target drilling area.

2. The horizontal directional drilling mud ratio control method according to claim 1, characterized in that: The target mud is formed of materials including: water, carboxymethyl cellulose, thickener 80A-51, potassium polyacrylate and sodium carbonate.

3. The method for controlling the ratio of horizontal directional drilling mud according to claim 2, characterized in that: Determining the target mud ratio according to the geological type of the target drilling area includes: Determine the mud viscosity and pH value according to the geological type of the target drilling area; The target mud ratio is determined according to the mud viscosity and the pH value.

4. The horizontal directional drilling mud ratio control method according to claim 3, characterized in that: Determining the mud viscosity and pH value according to the geological type of the target drilling area includes: If the geological type is thin-bed limestone, the mud viscosity is no more than 30s and the pH value is 7.5-8; If the geological type is mudstone or coal seam, the mud viscosity is 33s-34s and the pH value is 8-9.

5.

5. The method for controlling the ratio of mud for horizontal directional drilling according to claim 4, characterized in that: If the geological type is thin-layer limestone, the weight ratio of the target mud is: Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:2:25:25:

2.

6. The method for controlling the ratio of mud for horizontal directional drilling according to claim 4, characterized in that: If the geological type is mudstone or coal seam, the weight ratio of the target mud is: Water: carboxymethyl cellulose: thickener 80A-51: potassium polyacrylate: sodium carbonate = 700:6:75:75:

6.

7. The method for controlling the ratio of mud for horizontal directional drilling according to any one of claims 1 to 6, characterized in that: The geological sample parameters include: hardness of the rock sample, mineral composition of the rock sample, porosity of the rock sample, particle characteristics of the soil sample, water content of the soil sample and compressibility of the soil sample.

8. A horizontal directional drilling mud ratio control device, characterized in that: include: A parameter acquisition module is used to acquire geological sample parameters of the target drilling area; wherein the geological samples include: rock samples and soil samples; A geological type determination module, used to determine the geological type of the target drilling area according to the geological sample parameters of the target drilling area; The ratio output module is used to determine the ratio of the target mud according to the geological type of the target drilling area.

9. A terminal device, characterized in that: It comprises a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the horizontal directional drilling mud ratio control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the horizontal directional drilling mud ratio control method as described in any one of claims 1 to 7 are implemented.

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