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66 results about "Drill wear" patented technology

Electric hand drill wear state prediction and health management system

The invention relates to an electric hand drill wear state prediction and health management system, which belongs to the technical field of intelligent fault diagnosis and predictive maintenance of industrial equipment, and comprises a data acquisition and preprocessing unit used for acquiring and processing a multi-modal physical signal to generate a standardized data frame; the multi-domain feature transformation unit is used for receiving the standardized data frame and transforming the standardized data frame into a health feature vector and a load feature vector; the dynamic health baseline construction unit is used for reconstructing and generating a dynamic health baseline through a depth generation model according to the time sequence of the health feature vector and the load feature vector; and the residual error sequence generation and statistical monitoring unit is used for calculating the distance between the health feature vector and the dynamic health baseline, generating a residual error sequence, and performing statistical processing on the residual error sequence to obtain a statistical magnitude. According to the invention, the interference of working condition change on health state assessment is eliminated, and pure and reliable data input is provided for subsequent accurate monitoring.
Owner:JIANGSU YUPAI ELECTROMECHANICAL TECH CO LTD

Industrial guide rail drilling method and system

The invention provides an industrial guide rail drilling method and system. The method comprises the following steps of material pretreatment and positioning reference generation; guide rail hydraulic self-locking clamping; a reference hole laser positioning and drill bit path planning step; self-adaptive drill bit spacing adjustment is carried out; double-sided synchronous drilling and vibration suppression are achieved; integrating online burr detection and burr removal; a cutting force closed-loop control step; cooling, lubricating and self-adaptive spraying; a step of continuously discharging and automatically sorting; and predicting the service life of the cutter and replacing the cutter. The scheme has the following advantages that through the V-shaped clamping mechanism and the hydraulic compensation system, synchronous clamping of the four guide rails is achieved, and the clamping time is shortened to 2 minutes per batch; drilling units are symmetrically arranged on the guide rail up and down, double-face hole group machining is completed at a time, and 0.08 mm average positioning deviation caused by the overturning procedure is eliminated; the integrated acoustic emission sensor monitors the abrasion state of the drill bit in real time, when the cutting force fluctuation is larger than 15%, the feeding amount is automatically compensated, and the rejection rate is reduced to 1.5% from 12%.
Owner:CHENGDU HAIKE IND CONTROL EQUIP CO LTD

Circuit board production quality prediction and evaluation method based on big data

The invention provides a circuit board production quality prediction and evaluation method based on big data, and the method comprises the steps: building an initial data set through collecting the historical data and real-time operation state of a drill bit in a circuit board processing process, and extracting the wear degree characteristics of the drill bit; the method comprises the following steps: acquiring current production data through a suggestion signal for replacing a drill bit, acquiring and combining time prediction of accumulated use times of the drill bit to reach a life node, and determining an optimal replacement opportunity for immediately replacing the drill bit after the current production batch is completed; acquiring machining data of a new replaced drill bit according to the optimal replacement opportunity of the replaced drill bit, and generating an updated through hole quality influence prediction result; and according to the updated through hole quality influence prediction result, adjusting the vibration frequency change of the drill bit, the collection frequency of residual chip accumulation in the hole and the analysis depth of the hole wall smoothness score, and obtaining the latest circuit board quality evaluation data.
Owner:LONGYU ELECTRONICS MEIZHOU

Millimeter wave deep well drilling platform

The utility model discloses a millimeter wave deep well drilling platform, which belongs to the technical field of drilling equipment and comprises a drilling machine, a drilling rod and a gyrotron, the drilling machine and the gyrotron are arranged above the ground surface, one end of the drilling rod is connected with a drilling winch on the drilling machine, and the other end of the drilling rod extends into the ground from a drilling well. The drill rod comprises a drill rod shell and a waveguide tube in the drill rod shell, one end of the waveguide tube is communicated with the waveguide collector, the other end of the waveguide tube is provided with an opening and extends into the ground along with a drill bit of the drill rod, and the gyrotron is provided with a dynamic waveguide and movably connected with the waveguide collector through the dynamic waveguide. The dynamic waveguide comprises a waveguide leading-in pipe, a tail pipe and a plurality of groups of waveguide transmission pipes which are connected in sequence, and a plurality of millimeter wave reflection devices are arranged in the dynamic waveguide. Millimeter wave drilling is utilized, the problems of drill bit abrasion, replacement and the like in traditional drilling are solved through millimeter wave drill bit drilling, and the drilling cost is reduced.
Owner:XIANGTAN SHUANGCHAO QUENCHED ROCK NEW ENERGY TECHNOLOGY CO LTD

Estimation of rock abrasiveness and rock strength using bit response data

Some implementations include a method which comprises determining a drilling efficiency of a drill bit at a first depth in a wellbore formed in a subsurface formation based, at least in part, on a bit wear level of the drill bit, determining a cutting force mechanical specific energy of the drill bit at the first depth, and determining a rock strength of the subsurface formation at the first depth based on the drilling efficiency and the cutting force mechanical specific energy of the drill bit.
Owner:HALLIBURTON ENERGY SERVICES INC

Bit damage indicator

A method of monitoring the wear of a drill bit of a drilling system is provided. The method includes drilling into a formation using the drill bit of the drilling system, obtaining a weight-on-bit (“WOB”) from sensors of the drilling system, and obtaining a torque-on-bit (“TOB”) from the sensors of the drilling system. A bit damage indicator (“BDI”) is determined that is correlated with the wear of the drill bit based on a relationship between the WOB and the TOB.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC

Drilling rate prediction method based on mechanism-deep learning and hybrid model updating strategy

The invention belongs to the technical field of oil and gas drilling, and particularly relates to a mechanical drilling speed prediction method based on mechanism-deep learning and a hybrid model updating strategy. The method comprises the steps that 1, a mechanical drilling speed prediction mechanism model considering PDC drill bit abrasion and the bottom hole temperature is established; 2, establishing a deep learning model architecture; 3, creating a hybrid mechanical drilling speed prediction model through the WT model and the CAG model; 4, establishing a model hybrid updating strategy combining regular full-amount updating and real-time incremental updating; 5, the drilling speed prediction model is updated according to the mixed model updating strategy for the drilling parameters obtained during drilling; and step 6. And according to the drilling parameters obtained at the current moment, inputting the updated mechanical drilling speed prediction model so as to successfully predict the drilling speed at the next moment. According to the method, transient changes of complex working conditions in the drilling process can be captured easily, the drilling period can be shortened easily, the drilling cost can be reduced, and intelligent regulation and control of the drilling process can be assisted.
Owner:NORTHEAST GASOLINEEUM UNIV

Oil exploration drilling equipment with drill bit convenient to replace

The utility model relates to the technical field of oil exploration drilling equipment, in particular to oil exploration drilling equipment with a drill bit convenient to replace, which comprises a base, a fixing nail, a hydraulic rod, a connecting cylinder, a driving motor, a connecting rod, a fixing cylinder, a fixing seat and an excavating drill bit. Multiple sets of fixing nails are arranged at the bottom of the outer side of the base, a hydraulic rod is arranged on the inner side of the upper portion of the base, a connecting cylinder is arranged at the bottom of the hydraulic rod, a driving motor is arranged in the connecting cylinder, a connecting rod is arranged at the bottom of the connecting cylinder, a fixing cylinder is arranged at the bottom of the connecting rod, and a fixing base is arranged at the bottom of the fixing cylinder. Excavating drill bits are arranged at the bottom of the fixed seat; by adding the structure convenient to disassemble and assemble, the drill bit can be quickly disassembled for replacement when drill bits with different diameters need to be replaced or the drill bit is damaged, meanwhile, the drill bit with the replaceable excavating part is used, only parts at the excavating part are replaced when the drill bit is abraded, equipment needing to be carried is reduced, and the cost is reduced. And the practical value of the device is increased.
Owner:SHAANXI YANCHANG PETROLEUM (GRP) CO LTD YANCHANG GAS FIELD NO 3 GAS PROD PLANT

PDC bit with automatically updated composite blades

ActiveCN115853436BDrill bitsConstructionsTooth wearWell drilling
This invention belongs to the field of oil and gas drilling technology, specifically relating to a PDC drill bit with automatically updating composite cutting discs. It aims to solve the problem of existing drill bits requiring tripping and bit replacement when drilling speed decreases due to tooth wear, thus affecting drilling efficiency. The PDC drill bit with automatically updating composite cutting discs includes a drill bit body, a mounting groove on the drill bit body, and multiple cutting discs arranged side-by-side in the mounting groove. Below the mounting groove is a longitudinally extending output channel communicating with the mounting groove, and adjacent cutting discs are connected in the output channel by a tenon and mortise structure. It also includes a drive device located at the bottom of the drill bit body. During normal drill bit operation, the drive device is pressurized and stores power; when the drill bit is lifted, the drive device applies a downward pulling force to the cutting discs to move them downwards. This PDC drill bit can automatically update the cutting discs during drilling, to a certain extent avoiding tripping due to drill bit wear and improving production efficiency.
Owner:CHINA NAT PETROLEUM CORP +1

Drill bit wear detection and remaining life prediction method and apparatus

PendingCN122287171AReal-time dataPoint cloud
This invention discloses a method and apparatus for drill bit wear detection and remaining life prediction. The method includes: acquiring multimodal data of the drill bit; performing time-series alignment of the multimodal data using a dynamic time warping algorithm; inputting the time-series aligned multimodal data of the drill bit into an intelligent analysis center and outputting the remaining life prediction result of the target drill bit; using a visual prediction model to segment the wear region of the target drill bit; using a dynamic rating algorithm to classify the wear region; and using a digital twin simulation model, which is a multi-scale simulation system driven by digital twin simulation technology based on wear region segmentation results, classification results, real-time point cloud data of the target drill bit, and real-time sensor data, which can improve the detection accuracy, real-time performance, model generalization, and life prediction capability of drill bit wear.
Owner:RICHFIT INFORMATION TECH +1

Energy-saving anti-sloughing hole drilling tool

The invention relates to the technical field of mine drilling, in particular to an energy-saving hole collapse prevention drilling tool. Comprising a driving part, a cylinder and a sealing part, the driving part and the sealing part are in threaded connection with the two ends of the cylinder respectively, a gear ring is rotationally connected into the cylinder, an output shaft of the driving part is rotationally connected with a planet carrier and fixedly connected with a sun gear, and the planet carrier is rotationally connected with a planet gear meshed with the gear ring and the sun gear; the planet carrier is provided with a power shaft which is in limiting sealing sliding and rotating connection with the sealing piece, and the power shaft is fixedly connected with a connecting piece used for installing a drill bit. Working modes are automatically switched according to the torque borne by the power bearing, high-speed rotation is adopted in a soft soil layer, the drilling efficiency is improved, and the drill bit abrasion and hole collapse risks are reduced; and the hard rock stratum is converted into low-speed rotation to be combined with axial impact, the rock breaking capacity is enhanced, the drilling speed is maintained, meanwhile, light weight, miniaturization and low-cost manufacturing of equipment are achieved, and therefore the overall mass of the drilling tool is reduced, the number of power sources is reduced, and drilling energy consumption is reduced.
Owner:ANHUI WANBEI COAL REFCO GRP LTD HANSHAN HENGTAI NONMETALLIC MATERIALS BRANCH +1

Method and system for measuring wear value of ball tooth drill bit of down-the-hole drill in real time

The invention relates to the technical field of down-the-hole drill ball tooth drill bit wear measurement, in particular to a down-the-hole drill ball tooth drill bit wear value real-time measurement method and system, and the method comprises the steps: carrying out the optimization and registration of an initial three-dimensional model, and obtaining an overall wear quantized value of a down-the-hole drill ball tooth drill bit; analyzing a mapping relation between the while-drilling parameters and the overall wear quantized value, and constructing a database between the while-drilling parameters and the drill bit wear value; deriving a dimensionless variable according to a dimensional analysis method and a database, and performing combined screening on the dimensionless variable, a second-order polynomial and a cross term to determine a dimensionless variable combination influenced by drill bit wear; and substituting the dimensionless variable combination into the multiple linear regression model to establish a mathematical relationship model between the drill bit wear and the while-drilling parameters, thereby realizing the real-time measurement of the wear value of the ball tooth drill bit of the down-the-hole drill. According to the method, non-dimensional variables of the while-drilling parameters are obtained based on dimensional analysis, the model is built in combination with multiple linear regression, the wear value of the ball tooth drill bit of the down-the-hole drill is measured in real time, and construction efficiency and safety are improved.
Owner:KUNMING UNIV OF SCI & TECH

Electric spark drilling system

The invention discloses an electric spark drilling system which comprises a main shaft piece arranged on a feeding system of a machine tool, the main shaft piece comprises a main shaft seat and a power piece, the main shaft seat is arranged on the feeding system, and the power piece provides drilling power on the main shaft seat; the spark drilling part is arranged on the main shaft part and comprises a drill bit part, a spark impact part and a uniform drilling part, the drill bit part is arranged on the main shaft seat in a circumferential rotating and axial sliding mode and is in transmission connection with the power part, and the spark impact part is arranged on the main shaft seat and is connected with the drill bit part. And the uniform drilling part is used for providing power for axial vibration impact of the drill bit part, and is in transmission connection with the main shaft part, the drill bit part and the spark impact part at the same time so as to drive the spark impact part to rotate slowly and stably. The drill bit is reasonable in structural design, high in drilling efficiency, low in drill bit wear rate and high in drilling quality.
Owner:WUHAN TEXTILE UNIV

Rock mechanical parameter in-situ rapid testing device and method

The invention relates to an in-situ rapid testing device and method for rock mechanical parameters. The in-situ rapid testing device comprises a shell assembly, a testing assembly and a cloud system, the test assembly is arranged in the shell assembly; the testing assembly comprises a controller, a first motor, a second motor, an image shooting component, a drill rod with a drill bit, a pressure sensor and a torque sensor; the first motor enables the second motor to move up and down under the control of the controller so as to drive the drill rod connected to the second motor to move up and down; the second motor is used for driving the drill rod to rotate under the control of the controller; the image shooting component is used for shooting an initial image and a final image of the drill bit under the control of the controller; and the cloud system corrects the drilling thrust, the drilling torque, the drilling speed and the rotating speed based on the drill bit abrasion parameters, and finally rock mechanical parameters are obtained. The problem that the accuracy of a test result is reduced due to drilling parameter fluctuation caused by drill bit abrasion is solved, and the rock parameter detection accuracy is greatly improved.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

A rotary cutting cutter bit

ActiveCN224282627UIncrease impactIncreased depth of cutCutting machinesHydraulic cylinderImpact
This utility model relates to the field of automation and control technology, and discloses a rotary drilling bit, including a fixed frame. A hydraulic cylinder is fixedly connected to the inner wall of the fixed frame, and a movable frame is fixedly connected to the output end of the hydraulic cylinder. A connecting rod is fixedly connected inside the movable frame, and a first connecting piece is rotatably connected to the outer wall of the connecting rod. A movable rod is fixedly connected inside the first connecting piece, and a second connecting piece is rotatably connected to the outer wall of the movable rod. A fixed rod is rotatably connected inside the second connecting piece, and a limit component is provided on the outer wall of the movable frame. In this utility model, the hydraulic cylinder drives the movable frame, which in turn drives the connecting rod. The connecting rod drives the first connecting piece, which in turn drives the movable rod. The movable rod drives the second connecting piece to rotate on the outer wall of the fixed rod, thereby increasing the impact force on the rock and the cutting depth, and avoiding increased drill bit wear or drilling stagnation caused by hard rock resistance.
Owner:YANGGU XIAGONG PRECISION FORGING CO LTD

A method, device, medium, and program product for monitoring wear of a downhole drill bit

This application provides a method, device, medium, and program product for monitoring wear of down-the-hole (DH) drill bits, relating to the field of drill bit wear monitoring technology. The method includes: collecting the same acoustic emission signal received by at least three acoustic emission sensors spaced axially along the drill rod of a DH drill rig during drilling, and recording the reception times of at least three signals for receiving the same acoustic emission signal; determining the actual propagation speed and axial position of the same acoustic emission signal along the drill rod based on the determined target axial spacing between the at least three acoustic emission sensors and the at least three signal reception times; identifying the same acoustic emission signal as a drill bit wear signal when the actual propagation speed is greater than or equal to a preset speed threshold and the axial position of the sound source is within the drill bit's working area; and determining the degree of drill bit wear based on the drill bit wear signal. This solves the technical problem of low accuracy in DH drill bit wear monitoring in related technologies.
Owner:FUJIAN HUACHENG ROAD & BRIDGE ENG CO LTD

Rock mechanics parameter in-situ rapid testing device and method

The present application relates to a kind of rock mechanics parameter in-situ rapid testing device and method, including shell assembly, test component and cloud system;Test component is set in the inside of shell assembly;Test component includes controller, first motor, second motor, image shooting component, drill rod with drill bit, pressure sensor and torque sensor;First motor under the control of controller makes second motor move up and down, to drive the drill rod connected on second motor move up and down;Second motor under the control of controller, for driving drill rod rotation;Image shooting component under the control of controller, for shooting initial image and final image of drill bit;Cloud system is based on drill bit wear parameter correction drilling thrust, drilling torque, drilling speed and rotation speed, and finally obtains rock mechanics parameter.The present application avoids the problem of reduced accuracy of test results caused by drilling parameter fluctuation due to drill bit wear, greatly improves rock parameter detection accuracy.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Deep hole inner-cooling step drill with chip breaker groove

The utility model belongs to the technical field of drill bits, particularly relates to a deep hole inner-cooling step drill with a chip breaker groove, and provides the following scheme aiming at the problems that an existing step drill adopts an integrated design, an abraded part cannot be independently replaced, and only the whole drill bit can be discarded or integrally repaired. Comprising a drill rod, a first step drill body and a second step drill body, the second step drill body is connected with the first step drill body through a positioning insertion rod, a threaded rod and a fastening nut, independent disassembly and replacement of the second step drill body can be achieved, when the second step drill body is abraded, only the part needs to be replaced, the whole drill bit does not need to be replaced, and cost is reduced; compared with the prior art, the resource utilization rate is improved, a maintainer can directly detach the worn second step drill and replace or maintain the worn second step drill, complex repair operation on the whole drill bit is not needed, the maintenance time and the labor cost are saved, the maintenance efficiency is improved, equipment can be put into production again more quickly, and the downtime caused by equipment maintenance is shortened.
Owner:CHANGZHOU NAGU PRECISION TOOLS CO LTD

Sampling device for building quality detection

The utility model discloses a sampling device for building quality detection, which comprises a case, the left side of the case is fixedly connected with a main body rod, the front side and the rear side of the left end of the main body rod are fixedly connected with handles, the right side of the surface of the case is slidably connected with a dust cover, and the upper side and the lower side of the left side of the dust cover are fixedly connected with stabilizing mechanisms. And the left end of the stabilizing mechanism is fixedly connected with the surface of the machine box, and a driving motor is slidably connected to the left side of the interior of the machine box. Dust is adsorbed to the surface of the water absorption cotton sleeve when making contact with the water absorption cotton sleeve, meanwhile, the water absorption cotton sleeve can drip water to the surface of the sampling drill bit when the sampling drill bit rotates after absorbing water, abrasion of the drill bit is reduced, dust is effectively prevented from being generated during sampling, dustproof treatment is carried out, and the sampling efficiency is improved. And the drill bit is cooled during drilling sampling, so that the abrasion of the drill bit is reduced, and the service life of the device is prolonged.
Owner:SHANDONG GEYU CONSTRUCTION ENGINEERING CO LTD

A kind of automobile steering knuckle main pin hole drilling equipment

The application discloses a kind of automobile steering knuckle main pin hole drilling equipment, it is related to drilling equipment technical field, including operation table and the clamping assembly of setting in operation table top;Still include: drill table, it is set with two and symmetrically distributed in the two sides of operation table;Feed assembly, in the top of two drill tables each set a group, for control fixedly connected in its movable end movable platform linear motion.The application is worn by the accurate perception and intelligent matching of two sides drill bit wear state by the structure of symmetrically arranged double drill table and rotary table, in combination with torque sensor real-time monitoring and data comparison component, the coaxiality precision and processing stability of main pin hole are effectively guaranteed when system detects that the difference of two sides torque exceeds threshold value by transverse comparison, can automatically select the pair of wear state closest from two sides alternative drill bit to switch, simultaneously, by longitudinal comparison to independently evaluate and early warning to each drill bit life, make full use of tool life.
Owner:HUBEI HONG BO VEHICLE CO LTD

Drilling rate of penetration

Rate of penetration (ROP) measurement system (10) has sensor apparatus on a drill rig detecting drilling advancement. Sender (38, 200) transmits to a receiver (40, 204), optionally via a reflector (39, 208). An electronic sub (201) can include the sender (200), receiver (204) or reflector (208). Reflector (39, 208) reflects signals to the receiver (40, 204). Distance measurement or space mapping can use LIDAR / laser and MEMS mirror. Releasable attachment to the drill rig can be by magnet (112). Atmospheric or barometric pressure can be detected and pressure change can be used to determine distance moved. WOB, RPM, torque and time rate of progress can be measured and combined with distance moved measurements to assess wear on a drill bit. Near real time ROP measurement can be calculated and displayed (17) and / or reported (21). Drilling efficiency and premature drill wear or change in rock can be determined.
Owner:IMDEX TECH PTY LTD

Ultrasonic-assisted electric spark drilling device

The invention discloses an ultrasonic-assisted electric spark drilling device which comprises a main shaft piece arranged on a feeding system of a machine tool, the main shaft piece comprises a driving piece, a rotating supporting piece and a high-frequency power transmission piece, and the driving piece is arranged on the feeding system and provides driving power for the connected rotating supporting piece; the high-frequency power transmission piece provides a high-frequency power supply for the connected rotary supporting piece on the driving piece; the high-frequency ultrasonic transducer is arranged on the rotary supporting piece and is driven in the circumferential direction, and the high-frequency ultrasonic transducer provides axial vibration force for a drilling piece connected with the high-frequency ultrasonic transducer; the drilling part is arranged on the high-frequency ultrasonic transducer and is driven in the circumferential direction, and electric spark erosion and drilling operation are applied to the workpiece to be machined at the same time; and the electric spark discharge part is electrically connected with the main shaft part and the workpiece to be machined at the same time. The drill bit is reasonable in structural design, high in drilling efficiency, low in drill bit abrasion speed and high in drilling quality.
Owner:WUHAN TEXTILE UNIV

System for generating operating parameters of an earth-boring tool and related methods

An earth-boring tool system may include a drill string including at least one drilling tool. The earth-boring tool system may also include at least one processor and at least one non-transitory computer-readable storage medium storing instructions to cause the earth-boring tool system to receive first drilling environment data, train an operational drilling model based, at least in part, on the first drilling environment data and a reward function defining one or more rewards or punishments based, at least in part, on one or more drilling parameters including bit wear, rate of penetration (ROP), Stick Slip, cutter durability, or a reference baseline drilling policy, receive second drilling environment data, and determine, via the operational drilling model, one or more first actions based on the second drilling information data, the one or more first actions configured to change one or more operating parameters of the earth-boring tool system.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC

A fill pipe system and method of operation to prevent drill wear

The present application relates to a kind of filling pipeline system and operating method of anti-drilling impact wear, belong to mine filling slurry pipeline transportation technical field;Anti-drilling impact wear filling pipeline system, including filling borehole, borehole bottom elbow pipe, horizontal filling pipe, filling borehole upper end is provided with funnel type opening, the opening of filling borehole is provided with the mixer for storing filling slurry and the high buffer reservoir for storing buffer water above, first gate valve, second gate valve are respectively installed on the discharge pipeline of mixer and high buffer reservoir, the end of horizontal filling pipe close to borehole bottom elbow pipe is installed with third gate valve;The present application can be by buffer water to filling slurry and play buffering effect to reduce the impact wear of filling slurry to borehole bottom elbow pipe, by improving the liquid level height of filling slurry in filling borehole effectively reduce the impact damage of filling slurry falling to interface filling borehole, overall structure is simple, easy to operate, maintenance difficulty is low, and the effect of anti-impact wear is good.
Owner:YUNNAN CHIHONG ZN & GE CO LTD +2

Hydraulic ring drilling parameter dynamic monitoring system

The invention discloses a hydraulic ring drilling parameter dynamic monitoring system, which relates to the technical field of hydraulic ring drilling and comprises a data acquisition module, a data analysis module, a wear displacement schematic interval acquisition module, a defect type judgment module and an operation instruction generation module. A long axial ratio and a short axial ratio are obtained, a deformation coefficient is calculated according to a preset border crossing judgment condition, the abrasion defect and the connection defect of the drill bit can be accurately distinguished by comparing the deformation coefficient with an abrasion displacement schematic interval, and then corresponding operation instructions can be taken in time by accurately judging the abrasion defect and the connection defect of the drill bit. Therefore, accidents or equipment damage caused by defects are avoided, the operation safety and efficiency are improved, and meanwhile, the maintenance cost is reduced.
Owner:HENAN PROVINCIAL GEOLOGICAL BUREAU ECOLOGICAL ENVIRONMENT GEOLOGICAL SERVICE CENT +1

Collective voting to predict bit wear

PCT designated stageWO2026151904A1AlgorithmTheoretical computer science
A computer implemented method that enables collective voting from an ensemble model to predict bit wear is described. The method includes obtaining input data from a target well in real-time by an ensemble model. At least one physics-based model and at least one trained artificial intelligence model are applied to the input data to generate bit wear predictions. A collective voting scheme is applied to the bit wear predictions to obtain a final bit wear prediction. Drilling operations are updated responsive to the final bit wear prediction.
Owner:SAUDI ARABIAN OIL CO +1

Drill bit wear degree prediction model training method, prediction method, device and equipment

The application provides a drill bit wear degree prediction model training method, a prediction method, an apparatus and equipment. The method obtains a pre-constructed drill bit wear degree prediction model, assigns values to at least one optimization coefficient in the model, constructs a training sample according to the drill bit wear degree prediction value of the model after the assignment, trains a drilling speed prediction model based on the training sample to obtain a trained drilling speed prediction model, reassigns values to the optimization coefficient until the trained drilling speed prediction model corresponding to the re-assigned optimization coefficient meets a prediction deviation requirement, determines the drill bit wear degree prediction model corresponding to the drilling speed prediction model meeting the prediction deviation requirement as a target drill bit wear degree prediction model, and predicts the wear degree of a target drill bit based on the model. The application obtains a drill bit wear degree prediction model for accurately predicting the wear degree of a drill bit, thereby realizing accurate prediction of the wear degree of a drill bit.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Operation state evaluation system based on measurement while drilling process

The invention discloses an operation state evaluation system based on a measurement while drilling process, and relates to the technical field of drilling measurement, and the operation state evaluation system comprises an engineering safety evaluation module, a drilling efficiency evaluation module and an environmental protection compliance evaluation module. Performing well wall risk prediction and grading treatment, and realizing low, medium and high risk grading early warning and targeted treatment by using a well wall risk prediction model; the drilling efficiency evaluation module optimizes the drilling state according to the drill bit abrasion state data and the mud pump valve abrasion evaluation index, and the drilling efficiency is improved; the environment-friendly compliance evaluation module analyzes drilling fluid component data, sets an additive regulation scheme based on well wall stability evaluation indexes, regulates excessive additives, can intelligently evaluate and regulate the drilling operation state, and guarantees engineering safety, efficiency and environment-friendly compliance.
Owner:XUZHOU COLLEGE OF INDAL TECH

A cast-in-place bored pile construction system and method

The present application relates to the technical field of drilling, and discloses a drilling cast-in-place pile construction system and method, the method comprising: detecting stratum data below a pile position, determining whether an anchor rod exists below the pile position according to the stratum data; when the anchor rod exists below the pile position, determining position information of the anchor rod; drilling and crushing the anchor rod according to the position information of the anchor rod; after the anchor rod is crushed into anchor rod slag, the pile machine is pulled out, a slag suction device is put into the hole, and a suction end of the slag suction device is located at the bottom of the hole; after the slag suction device completes the slag suction operation on the anchor rod slag at the bottom of the hole, the pile machine is drilled again to continue drilling. The present application can obtain accurate position information of each anchor rod by detecting each pile position, the anchor rod is crushed by drilling, and the anchor rod slag at the bottom of the hole is sucked out by the slag suction device, so that the crushed anchor rod slag can be cleaned out of the hole in time, and the anchor rod slag cannot cause the drill bit to wear faster and the hole wall to be damaged in the later drilling process.
Owner:CITIC CONSTR

Drilling equipment for road and bridge drilling

The invention belongs to the technical field of bridge drilling, and particularly relates to road and bridge drilling and punching equipment which comprises a vehicle body, a hydraulic supply device, a hydraulic lifting device and a power supply device, the hydraulic supply device, the hydraulic lifting device and the power supply device are arranged on the vehicle body, a lifting seat is arranged on the side wall of the hydraulic lifting device, and the road and bridge drilling and punching equipment further comprises a motor fixedly arranged at the top of the lifting seat. The positioning pipe is dynamically jacked by the stabilizing mechanism, so that the problem of sloshing caused by large length of the drill rod is effectively solved, and the drilling precision is improved; the drilling pressure detection mechanism can accurately recognize hard rocks and reduce the drilling speed and the feeding speed in a linkage mode, drill bit abrasion is reduced, drill jamming is avoided, and safety and efficiency are balanced; the drilling degree detection mechanism can monitor abrasion of the drill bit and trigger an alarm, meanwhile, the linkage stabilizing mechanism enhances the jacking force to make up for stability loss, the three mechanisms cooperate with each other, the automation level, the operation reliability and the adaptability to complex stratums of equipment are remarkably improved, and the drilling quality and the construction efficiency are guaranteed.
Owner:CHINA RAILWAY FIRST GROUP CO LTD +2