CN113123724A

CN113123724A - Drill bit with dynamic data acquisition function and using method thereof

Info

Publication number: CN113123724A
Application number: CN202110579049.7A
Authority: CN
Inventors: 李飞; 谭瑜琦; 宋浩兰; 刘思云
Original assignee: Xian Shiyou University
Current assignee: Xian Shiyou University
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-07-16
Anticipated expiration: 2041-05-26
Also published as: CN113123724B

Abstract

The invention belongs to the technical field of oil drilling equipment, and in particular relates to a drill bit with a dynamic data acquisition function and a method for using the same. A hole; the cutting assembly includes: a blade, which is fixedly connected to the drill body; a plurality of cutting teeth are evenly arranged on the blade, and the cutting teeth are fixedly connected to the blade; a collection mechanism is arranged inside the blade for obtaining The rotational speed, vibration and temperature state information of the drill bit; the invention can collect various state data of the drill bit through the collection bin arranged on the blade wing, which is convenient to restore the real situation of the drill bit running in the well, and analyzes the parameters of the drill bit through data analysis. Targeted adjustment enables a detailed understanding of the operating status, faults and formation conditions of the drill bit to reduce the failure rate of the drill bit during operation. The collection system of the invention is safe, reliable, convenient to use, and has strong practicability, and is worthy of popularization.

Description

Drill bit with dynamic data acquisition function and using method thereof

Technical Field

The invention belongs to the technical field of petroleum drilling equipment, and particularly relates to a drill bit with a dynamic data acquisition function and a using method thereof.

Background

The petroleum industry is an important component of economic development and national defense construction in China, so the development of science and technology has a profound influence on the development of the petroleum industry. In the last decade, the shale gas revolution in North America changes the world oil and gas supply pattern, the situation of supply and demand is generated, the oil price enters the stage of medium and low price, and the development of the upstream plate is also changed from a resource expansion type to a cost reduction and efficiency improvement type. Most of oil and gas resources in China are difficult to exploit, and drilling development needs to be carried out on deep strata. The drill bit is an important device for cutting rock in a drilling tool, and the operation parameters of the drill bit in the underground have important influence on the drilling speed and the service life of the drill bit; because the deep stratum structure of China is complex, the well drilling needs to be expanded when oil is extracted in the later period; in order to improve the well expansion efficiency, detailed information of a stratum needs to be recorded in the early drilling process, and parameters of a well expansion drill bit during working are adjusted in time; at present, the formation information is generally recorded by drilling a bit for a certain distance and taking out the bit to record a section of formation information; the method not only seriously reduces the efficiency of early drilling, but also can not record formation information in real time, thereby influencing the accuracy of the drill bit operation parameters during well expansion and increasing the loss of the drill bit; therefore, there is a need for a drill bit with a dynamic data collection function and a method of using the same.

Disclosure of Invention

In view of the above, the present invention provides a drill bit with a dynamic data collection function and a method for using the same, so as to solve the deficiencies in the prior art.

The technical scheme of the invention is as follows:

a drill bit with dynamics data acquisition functions, comprising a drill bit, the drill bit comprising:

the cutting assemblies are uniformly arranged at the head of the drill bit body and are used for realizing cutting and drilling;

the cutting assembly includes:

the blade is fixedly connected with the drill bit body;

the cutting teeth are uniformly arranged on the blade and fixedly connected with the blade;

the acquisition mechanism is arranged inside the blade and used for acquiring the state information of the rotating speed, the vibration and the temperature of the drill bit;

the controller is arranged inside the blade and electrically connected with the acquisition mechanism.

Preferably, gather the mechanism including seting up the collection storehouse on the wing of a knife, the inside in collection storehouse is equipped with the support frame, the support frame is connected with the collection storehouse, has seted up a plurality of standing grooves on the support frame, the inside of standing groove is equipped with sensor, battery, memory respectively, controller 4 also fixes in standing groove 23, the exhaust hole has been seted up along the axis to the support frame, still be equipped with on the outside in collection storehouse and gather the storehouse lid, gather the storehouse lid and can dismantle with the collection storehouse and be connected, the controller is connected with sensor, battery, memory electricity respectively.

Preferably, the sensor comprises a rotation speed sensor, a vibration sensor and a temperature sensor.

Preferably, a plurality of annular grooves are formed in the supporting frame, a rubber ring is sleeved on each annular groove, and the outer side of each rubber ring is connected with the inner wall of the collection bin in a laminating mode.

Preferably, one end of the collection bin cover close to the support frame is sleeved with a sealing ring and is in threaded connection with the collection bin, and the other end of the collection bin cover is flush with the cross section of the blade.

Preferably, a plurality of water holes 71 are uniformly formed in the drill bit body 1, the water holes 71 are located between the adjacent blades 2, a water cavity 81 is formed in the drill bit body 1, one end of the water cavity 81, which is close to the blades 2, is communicated with the water holes 71, and the other end of the water cavity is connected with a water pump on the ground through a pipeline in the drill rod.

A use method of a drill bit with a dynamic data acquisition function comprises the following steps:

s1, the sensor and the memory on the support frame are electrified and opened through the controller, then the support frame is placed in the collection bin, and the collection bin is sealed by using a collection bin cover;

s2, when the vibration value detected by the vibration sensor in the acquisition bin is larger than 5g or the rotating speed value detected by the rotating speed sensor is larger than 20rpm, the acquisition mechanism is in a drilling mode, and the controller acquires data every 10-30S and writes the data into the memory;

s3, when the vibration value detected by the vibration sensor in the acquisition bin is less than 5g or the rotating speed value detected by the rotating speed sensor is less than 20rpm and lasts for 1-5min, the acquisition mechanism is in a ground mode, and the controller acquires data every 4-8 minutes and writes the data into the memory;

and S4, after the drilling cycle of the drill bit is completed, taking out the support frame inside the drill bit, and then exporting the information data in the memory.

Preferably, when the acquisition mechanism is in a drilling mode, the controller acquires data every 15 s; when the acquisition mechanism is in ground mode, the controller acquires data every 6 minutes.

Compared with the prior art, the drill bit with the dynamic data acquisition function and the use method thereof provided by the invention have the advantages that various running state data of the drill bit can be acquired through various sensors arranged in the acquisition bin, the real situation of the drill bit during running is restored, and the parameters of the drill bit can be conveniently and pertinently adjusted during later drilling to improve the drilling efficiency; in addition, the running condition, the fault and the stratum condition of the drill bit are known in detail through the data acquired in real time, so that the fault rate in the later drilling operation is reduced, the service life of the drill bit is prolonged, and the drilling cost is reduced; the installation convenience of the detachable integrated acquisition unit is improved; the collecting bin cover and the collecting bin cover can prevent external substances from entering the collecting bin to damage equipment, and the collecting bin cover is flush with the blade, so that the overall streamline of the collecting bin cover and the blade of the drill bit is ensured, and the damage to the collecting bin cover and the influence on drilling efficiency during drilling are avoided; in addition, the sealing ring can increase the assembling tightness of the supporting frame and the collecting bin, so that the sensor and the drill bit are kept relatively static, and the accuracy of data collection is improved; the matching tightness of the support frame and the collection bin is further improved through the exhaust holes in the support frame, and the influence on the accuracy of the sensor caused by large assembly gaps due to gas blockage is avoided; by collecting the water holes uniformly distributed on the outer side of the bin, the foreign matters stuck on the drill bit can be washed away during drilling, and the drilling efficiency is improved; the drill bit can be cooled, and the self loss of the drill bit and the damage of the sensor caused by high temperature are avoided; the invention is safe and reliable, convenient to use, strong in practicability and worthy of popularization.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view of the present invention taken along the blade;

FIG. 5 is a schematic view of the closure lid of the present invention;

FIG. 6 is a schematic view of the structure of the acquisition unit of the present invention;

FIG. 7 is a cross-sectional view of an acquisition unit of the present invention;

FIG. 8 is a LabVIEW-based collected data presentation graph of the present invention;

FIG. 9 is an enlarged view of a LabVIEW-based partial waveform of the present invention;

FIG. 10 is a LabVIEW-based near-bit data visualization presentation of the present invention;

FIG. 11 is a LabVIEW-based near-bit data collection document presentation of the present invention;

FIG. 12 is a Python-based data analysis presentation of the present invention;

FIG. 13 is a Python-based sensor data histogram of the present invention, where a is a temperature histogram, b is an axial vibration peak histogram, and c is a lateral vibration peak histogram;

FIG. 14 is a graph of stick-slip and stagnation analysis for a Python-based drill bit of the present invention;

FIG. 15 is a drill bit switch to drilling mode schedule;

FIG. 16 is a table of bit switching to surface mode.

Description of reference numerals:

1-drill bit body, 2-blade, 3-cutting tooth, 4-controller, 21-collection bin, 22-support frame, 23-placement groove, 24-sensor, 25-battery, 26-storage, 28-exhaust hole, 29-collection bin cover, 41-annular groove, 42-rubber ring, 61-sealing ring, 71-water hole and 81-water cavity.

Detailed Description

The invention provides a drill bit with a dynamic data acquisition function and a using method thereof, and the invention is explained below by combining the structural schematic diagrams of figures 1 to 16.

Example 1

As shown in fig. 1 and 3, a drill bit with a dynamic data acquisition function comprises a drill bit 1, wherein the drill bit 1 comprises: the cutting assemblies are uniformly arranged at the head of the drill bit body 1 and are used for realizing cutting and drilling;

the cutting assembly includes: the cutting blade comprises a blade 2, a plurality of cutting teeth 3, a collecting mechanism and a controller 4; the cutter blade 2 is fixedly connected with the drill bit body 1; the cutting teeth 3 are uniformly arranged on the blade 2, and the cutting teeth 3 are fixedly connected with the blade 2; the acquisition mechanism is arranged inside the blade 2 and used for acquiring the state information of the rotating speed, the vibration and the temperature of the drill bit; the acquisition mechanism is positioned inside the cutting teeth, so that the accuracy of acquired information can be ensured; the controller 4 is also arranged inside the blade 2, the controller 4 is electrically connected with the acquisition mechanism, the frequency of the acquisition mechanism for acquiring information can be optimized according to different state information acquired by the acquisition mechanism, the overall energy consumption is reduced, and long-time effective operation is guaranteed.

Preferably, the sensor 24 includes a rotation speed sensor, a vibration sensor, and a temperature sensor.

The rotation speed sensor adopts IMU-3000, the vibration sensor adopts ADXL372BCCZ and ADXL312ACPZ, and the acceleration sensors with two thresholds are used for ensuring the measurement accuracy and simultaneously identifying the working mode of the data acquisition system more easily; the temperature sensor employs RisymLM 75A.

The sampling frequency of the IMU-3000 of the rotation speed sensor is 20Hz, the vibration sensor adopts two specifications, the measuring ranges are +/-16 g and +/-200 g respectively, and the sampling frequency is 800 Hz. In the ground mode, an acceleration sensor of +/-16 g works, and the microcontroller is awakened once every 6 minutes to record and store measurement data. In the drilling mode, an acceleration sensor of +/-200 g works, and the microcontroller performs feature extraction and recording on continuous 10-second measurement data.

Preferably, when the acquisition mechanism is in the drilling mode, the controller 4 acquires data every 15 s; when the acquisition mechanism is in ground mode, the controller 4 acquires data every 6 minutes.

Example 2

In order to further improve the real-time performance of data acquisition of the drill bit, the state of the drill bit is detected in real time by arranging an acquisition bin and a sensor, and the sensor and the drill bit are ensured to be relatively stable;

as shown in fig. 2, 4, 6, and 7, preferably, the collecting mechanism includes a collecting bin 21 disposed on the blade 2, a supporting frame 22 is disposed inside the collecting bin 21, the supporting frame 22 is connected to the collecting bin 21, a plurality of placing grooves 23 are disposed on the supporting frame 22, a sensor 24, a battery 25, and a storage 26 are disposed inside the placing grooves 23, the controller 4 is also fixed in the placing grooves 23, an air vent 28 is disposed along an axis of the supporting frame 22, a collecting bin cover 29 is further disposed on an outer side of the collecting bin 21, the collecting bin cover 29 is detachably connected to the collecting bin 21, and the controller 4 is electrically connected to the sensor 24, the battery 25, and the storage 26, respectively.

Example 3

In order to further improve the accuracy of data acquisition of the sensor, the rubber ring is arranged to prevent the acquisition system from being damaged by impact; the collection bin cover can ensure the sealing of the collection bin, and in addition, the collection bin cover and the blade form a streamline shape, so that the use convenience of the drill bit is improved;

preferably, a plurality of annular grooves 41 are formed in the support frame 22, a rubber ring 42 is sleeved on each annular groove 41, and the outer side of each rubber ring 42 is attached to and connected with the inner wall of the collection bin 21.

As shown in fig. 5, preferably, one end of the collecting bin cover 29 close to the supporting frame 22 is sleeved with a sealing ring 61 and is in threaded connection with the collecting bin 21, and the other end is flush with the cross section of the blade 2.

Example 4

In order to further improve the stability of the acquisition mechanism, the water cavity and the water hole are arranged to not only wash the sludge in front of the drill bit, but also reduce the load on the drill bit; in addition, the temperature of the acquisition bin can be reduced, so that the influence of the high temperature of the drill bit during drilling on the accuracy of information acquisition is avoided;

Example 5

s1, the sensor 24 and the memory 26 on the support frame 22 are electrified and opened through the controller 4, then the support frame 22 is placed in the collection bin 21, and the collection bin 21 is sealed by the collection bin cover 29;

s2, when the vibration value detected by the vibration sensor in the acquisition bin 21 is larger than 5g or the rotating speed value detected by the rotating speed sensor is larger than 20rpm, the acquisition mechanism is in a drilling mode, and the controller 4 acquires data every 10S and writes the data into the memory 26;

s3, when the vibration value detected by the vibration sensor in the collection bin 21 is less than 5g or the rotating speed value detected by the rotating speed sensor is less than 20rpm and lasts for 1min, the collection mechanism is in a ground mode, and the controller 4 collects data every 4 minutes and writes the data into the memory 26;

and S4, after the drilling cycle of the drill bit is completed, taking out the support frame 22 inside the drill bit, and then exporting the information data in the memory 26.

Example 6

s2, when the vibration value detected by the vibration sensor in the acquisition bin 21 is larger than 5g or the rotating speed value detected by the rotating speed sensor is larger than 20rpm, the acquisition mechanism is in a drilling mode, and the controller 4 acquires data every 20S and writes the data into the memory 26;

s3, when the vibration value detected by the vibration sensor in the collection bin 21 is less than 5g or the rotating speed value detected by the rotating speed sensor is less than 20rpm and lasts for 3min, the collection mechanism is in a ground mode, and the controller 4 collects data every 6 minutes and writes the data into the memory 26;

Example 7

s2, when the vibration value detected by the vibration sensor in the acquisition bin 21 is larger than 5g or the rotating speed value detected by the rotating speed sensor is larger than 20rpm, the acquisition mechanism is in a drilling mode, and the controller 4 acquires data every 30S and writes the data into the memory 26;

s3, when the vibration value detected by the vibration sensor in the collection bin 21 is less than 5g or the rotating speed value detected by the rotating speed sensor is less than 20rpm and lasts for 5min, the collection mechanism is in a ground mode, and the controller 4 collects data every 8 minutes and writes the data into the memory 26;

Example 8

Analyzing the acquired drill bit data;

a first part: and (6) visualizing the data.

According to the invention, LabVIEW software is used, and after the acquisition unit finishes one period of data acquisition, the acquisition unit is connected with a computer, so that the LabVIEW can be used for visually reading data. Besides the visualization software used in the present invention, other visualization software may be used for data visualization, which is not specifically limited herein, and the specific implementation examples are as follows. As shown in fig. 8 and 9, the group records data collected by the tool from day 5/23 to day 6/2.

It can be seen from the figure that the tool collected the peak, average and statistics of times greater than 5g for the axial accelerometer, the peak, statistics of times greater than 5g for the lateral accelerometer, the maximum and minimum values for the rotational speed, the temperature and the stick-slip. From the graph of the average value of the axial accelerometer, the average value is mostly around 0, which indicates that the drilling tool is in a parallel vibration state, the peak of the average value is about 1, and the tool is in a vertical vibration state. Similarly, the peak of the lateral accelerometer will change significantly when the tool is in a parallel vibration state, while the tool is in a vertical vibration state when the peak of the lateral acceleration is 0. The count pattern is related to the vibration frequency of the tool, and when the vibration frequency is low, count of times greater than 100g is started.

As shown in fig. 10, from this set of data, an operational summary report can be generated in which the values of the lateral shock count and the axial shock count, the highest value and the lowest value of the temperature, the maximum value and the minimum value of the rotational speed, the total recording time, the total vibration time, and the start time and the end time of the recording can be clearly seen through the bar charts.

In addition to generating the running report, a data document may be generated as shown in fig. 11. The data file contains various items of data in the waveform chart. The data acquired during operation of the data acquisition system is shown in a more clear manner to those skilled in the art.

A second part: data deep mining

The Python language is used for realizing the application of artificial intelligence in data analysis, and besides the language used by the invention, other languages and software can be used for realizing the deep analysis of data, and the specific implementation examples are described as follows.

As shown in fig. 12, the recorder data shows the overall operation of the near bit for 31 days from 9 months 29 days to 10 months 31 days. Based on temperature and vibration information, downhole drilling can be easily separated from its surface transportation time period. The drill bit starts to work in the well after 28 days from the maintenance shop and 27 days after 10 months. In the downhole drilling, the axial vibration peak value is about 40g, and the lateral vibration peak value is about 180 g; during ground transportation, a peak axial vibration of 27g and a peak lateral vibration of 90g was observed at 17 days 10 months, these lateral and axial vibration peaks coincide in time, and there are fluctuations in the time rotational speed image, which may be related to transportation activities or tool handling in the well site. As can be seen from the statistical information of the temperature and the rotating speed in the graph, when the near-bit is on the ground, the temperature curve shows the change rule of day and night, and the rotating speed is basically 0 rpm. When the near bit is started underground, the temperature is gradually increased to 49 ℃, then the environment temperature is higher towards the deep part of the stratum in the drilling process, and finally the environment temperature is increased to about 56 ℃; when the rotary drilling is started, the data acquisition system records the information of the rotating speed; because a single drill needs to be stopped in the drilling process or the drill is stuck and needs to be backed up, severe change occurs on the image of the rotating speed.

The analysis software further performs statistical analysis on the data. Table 1-1 lists the running statistics generated by the analysis tool. As shown in fig. 13 a, b, c, bar graphs of the statistical data are shown, including temperature, axial acceleration peak and lateral acceleration peak. From FIGS. 1-7, it can be seen that the maximum temperature of the near-bit is 50-60 ℃ in the analysis of the ambient temperature. The axial vibration is mainly concentrated in the range of +/-10 g; the maximum vibration was 40g, but the number of vibrations was small. It can be seen from fig. 1-8 that the lateral vibration is mainly concentrated at 0-80g, and the maximum vibration is 180g, but the number of vibrations is small.

These measurements and statistics provide valuable and abundant downhole data for near-bit vibration studies. The data in the data acquisition system shown in the statistical report in table 1-1 is clear and intuitive, and can help maintenance personnel and operators to quickly know the working condition of the motor so as to provide a performance improvement scheme and maintenance measures.

TABLE 1-1 statistical report

Combining the data of the data acquisition mechanism with the data of the surface equipment as shown in the figure, wherein the figure 14(a) shows that the motor is in a rotary drilling mode within the time period from 5:30 to 10:30, and then is switched to a sliding drilling mode at about 10: 30; at the same time, the surface measured mud displacement is also shown in the figure. Fig. 14(b) shows the bit depth, axial vibration peak and lateral vibration peak colored according to the rotation or sliding drilling state. During rotary drilling, a higher vibration intensity was observed, about 100g for lateral vibration and about 30g for axial vibration. However, after switching the drill bit to the sliding drilling mode, the lateral vibration was reduced to 50g and the axial vibration was reduced to 15 g. Fig. 14(c) shows maximum, minimum and average rotational speeds. A higher stick-slip condition was observed during the rotary drilling phase, and a condition of bit stall was also observed. After switching the drill bit to the sliding drilling mode, the stick-slip level decreases.

The data acquisition system is suitable for the requirements of digital oil field construction in China at present, adopts an artificial intelligence algorithm, establishes a model for judging the running state of equipment, further excavates data rules and endows new value to the data. Meanwhile, an expert system is established through manual analysis experience, the health state evaluation of the equipment is promoted, the drilling efficiency is practically improved, and the operation cost is reduced. On the premise of having a large amount of data bases and successful cases, a model of the service life of the equipment is further established by combining the wear assessment of a maintenance workshop, and the intelligent operation of the underground equipment is realized.

It will be appreciated that all the conditions that occur during drilling of a drill bit are concentrated in the values of vibration, rotation. Adopt the collection equipment independent of the drill bit to realize easy dismounting, reduce the fault rate, reduce cost's purpose to realize the intellectuality of drill bit, thereby reach following effect:

by reading various data with time marks, the running condition, the fault and the stratum condition of the drill bit are known in detail, the fault rate of the drill bit during operation is reduced, and the cost is reduced.

Through the deep excavation of different data, the intelligent algorithm is assisted, the data rule is deeply excavated, a drill bit life model is established, and the drilling efficiency is practically improved.

According to the drill bit with the dynamic data acquisition function and the using method thereof, provided by the invention, the multiple state data of the drill bit can be acquired through the multiple acquisition bins arranged on the blades, so that the real running situation of the drill bit is conveniently restored, the parameters of the drill bit are adjusted in a targeted manner, the running condition, the fault and the stratum condition of the drill bit are known in detail, the fault rate of the drill bit during operation is reduced, and the cost is reduced; through the plurality of water holes arranged on the drill bit, the drill bit can be cooled and radiated during drilling, the drill bit is prevented from being damaged by high temperature, the sensor can be radiated, and the service life of the sensor is prolonged; through the detachable integrated acquisition unit, the acquisition bin is not only convenient to fix, but also convenient to replace, and the use convenience is improved; external substances can be prevented from entering the collecting bin through the sealing ring and the collecting bin cover to damage equipment, the collecting bin cover is flush with the blade, the collecting bin cover is prevented from damaging the appearance structure of the blade, the integrity of the drill bit is improved, and the use efficiency of the drill bit is further improved; the acquisition mechanism is safe, reliable, convenient to use, high in practicability and worthy of popularization.

The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. Drill bit with function of dynamic data acquisition, comprising a drill bit (1), characterized in that the drill bit (1) comprises:

the cutting assemblies are radially arranged at the head of the drill bit body (1) and are used for realizing cutting and drilling;

the cutting assembly includes:

the cutter wing (2), the cutter wing (2) is fixedly connected with the drill bit body (1);

the cutting teeth (3) are uniformly arranged on the blade (2), and the cutting teeth (3) are fixedly connected with the blade (2);

the acquisition mechanism is arranged inside the blade (2) and is used for acquiring the state information of the rotating speed, the vibration and the temperature of the drill bit;

the controller (4) is arranged inside the blade (2), and the controller (4) is electrically connected with the acquisition mechanism.

2. The drill bit with the dynamic data acquisition function according to claim 1, the collecting mechanism comprises a collecting bin (21) arranged on the blade (2), a supporting frame (22) is arranged inside the collecting bin (21), the supporting frame (22) is connected with the collecting bin (21), a plurality of placing grooves (23) are formed in the supporting frame (22), a sensor (24), a battery (25) and a memory (26) are respectively arranged inside the placing grooves (23), the controller (4) is also fixed in the placing grooves (23), exhaust holes (28) are formed in the supporting frame (22) along the axis, a collection bin cover (29) is further arranged on the outer side of the collection bin (21), the collection bin cover (29) is detachably connected with the collection bin (21), and the controller (4) is electrically connected with the sensor (24), the battery (25) and the storage (26) respectively.

3. Drill bit with dynamic data acquisition function according to claim 2, characterized in that said sensors (24) comprise a rotation speed sensor, a vibration sensor, a temperature sensor.

4. The drill bit with the function of dynamically acquiring data according to claim 2, wherein a plurality of annular grooves (41) are formed in the support frame (22), rubber rings (42) are sleeved on the annular grooves (41), and the outer sides of the rubber rings (42) are attached to and connected with the inner wall of the acquisition bin (21).

5. The drill bit with the function of dynamically acquiring data is characterized in that one end, close to the support frame (22), of the acquisition bin cover (29) is sleeved with a sealing ring (61) and is in threaded connection with the acquisition bin (21), and the other end of the acquisition bin cover is flush with the section of the blade (2).

6. The drill bit with the function of acquiring the dynamic data according to claim 1 is characterized in that a plurality of water holes (71) are uniformly formed in the drill bit body (1), the water holes (71) are located between adjacent blades (2), a water cavity (81) is formed in the drill bit body (1), one end, close to the blades (2), of the water cavity (81) is communicated with the water holes (71) respectively, and the other end of the water cavity is connected with a water pump on the ground through a pipeline inside a drill rod.

7. Use of a drill bit with a function of collecting dynamic data according to any of claims 1 to 6, characterized in that it comprises the following steps:

s1, the sensor (24) and the memory (26) on the support frame (22) are electrified and opened through the controller (4), then the support frame (22) is placed in the collection bin (21), and the collection bin (21) is sealed through a collection bin cover (29);

s2, when the vibration value detected by the vibration sensor in the acquisition bin (21) is larger than 5g or the rotating speed value detected by the rotating speed sensor is larger than 20rpm, the acquisition mechanism is in a drilling mode, and the controller (4) acquires data every 10S-30S and writes the data into the memory (26);

s3, when the vibration value detected by the vibration sensor in the collection bin (21) is less than 5g or the rotating speed value detected by the rotating speed sensor is less than 20rpm and lasts for 1-5min, the collection mechanism is in a ground mode, and the controller (4) collects data every 4-8 minutes and writes the data into the memory (26);

and S4, after the drilling cycle of the drill bit is completed, taking out the support frame inside the drill bit, and then exporting the information data in the memory (26).

8. Use of a drill bit with dynamical data collection function according to claim 7, characterized in that when the collection mechanism is in drilling mode, the controller (4) collects data every 15 s; when the acquisition mechanism is in the ground mode, the controller (4) acquires data every 6 minutes.