Multi-position drilling parameter monitoring device and method

Abstract

The invention belongs to the technical field of oil well exploration, and provides a multi-position drilling parameter monitoring device and method.The multi-position drilling parameter monitoring device comprises a drill collar body, a framework and a sleeve, and the framework is located in the sleeve and connected with the drill collar body; a plurality of groups of first cylindrical grooves and a group of second cylindrical grooves are formed in the drill collar body in the axial direction, and a plurality of first cylindrical grooves and a plurality of second cylindrical grooves are formed in each group and are uniformly distributed in the circumferential direction of the outer side wall of the drill collar body. The bending moment detection module is powered on through the longitudinal power-on channel, the bending moment detection module can detect the bending moment of the drill collar body in the working state, detection personnel can be helped to obtain bending moment data of the device, then parameters of high-depth downhole operation are adjusted, and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of oil well exploration, and in particular relates to a multi-position drilling parameter monitoring device and method. Background Art

[0002] When drilling for oil, the drill bits need to withstand high drilling pressure, high torque, and underground formation and mud pressure, which may lead to risks of damage and breakage, resulting in drilling accidents. At the same time, drilling parameters also directly reflect the construction status of drilling, and can be used to judge underground abnormal conditions such as well leakage and gas invasion, thereby reducing losses.

[0003] There is a strong demand for engineering parameters in the market, especially for measuring downhole drilling parameters at multiple locations, so as to better adjust the parameters applied on the ground and avoid drilling accidents. At present, domestic and foreign downhole oil engineering parameter measurement instruments can only measure downhole drilling parameters at one location, which cannot meet the needs of measuring downhole drilling parameters at multiple locations. At the same time, when the drill bit is operating at a high depth underground, the high pressure on the drill bit will cause damage to the drill bit, posing a major safety hazard. Summary of the invention

[0004] In order to solve the problems in the background technology, the present invention provides a multi-position drilling parameter monitoring device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multi-position drilling parameter monitoring device comprises a drill collar body, a skeleton and a sleeve;

[0007] The skeleton is located inside the sleeve and connected to the drill collar body;

[0008] The drill collar body is provided with a plurality of groups of first cylindrical grooves and a group of second cylindrical grooves along the axial direction; in each group, a plurality of first cylindrical grooves and a plurality of second cylindrical grooves are provided and are circumferentially distributed along the outer side wall of the drill collar body;

[0009] In the same transverse cross section, a transverse current-carrying channel for communication is provided between the bottoms of adjacent first cylindrical grooves, and in the same longitudinal cross section, the bottom side walls of the second cylindrical groove and all the first cylindrical grooves are provided with the same longitudinal current-carrying channel;

[0010] A bending moment detection module is installed in the second cylindrical groove, and the bending moment detection module is used to detect the bending moment of the drill collar body;

[0011] A rotation speed sensor, an impact vibration sensor and a temperature sensor are installed on the frame.

[0012] Furthermore, the first cylindrical groove is a countersunk groove, in which a metal guide column is installed, and a drilling pressure torque patch is attached to the top surface of the metal guide column; a top cover 1 is installed on the top of the drilling pressure torque patch, and the top cover 1 is clamped with the corresponding first cylindrical groove.

[0013] Furthermore, in the same cross section, the metal guide pillars are connected in series through the wires in the transverse power-conducting grooves; in the same longitudinal cross section, adjacent metal guide pillars are connected through the wires in the longitudinal power-conducting grooves.

[0014] Furthermore, the bottom surface of the second cylindrical groove is provided with an inner through hole and a conductive hole;

[0015] An airflow input pipe is installed in the inner through hole, a strain gauge is installed on the top of the airflow input pipe, a second top cover is installed on the top of the strain gauge, and the second top cover is clamped with the second cylindrical groove.

[0016] Furthermore, the drill collar body is a hollow structure, and the bottom of the airflow input pipe is connected to the hollow part of the drill collar body.

[0017] Furthermore, a conductive column connected to the airflow input pipe is installed in the conductive hole, and the conductive column is connected to the wire in the longitudinal current-carrying channel.

[0018] Furthermore, the frame is provided with a plurality of assembly slots, a part of which is used to install the main control chip, and the remaining part of which is used to install the battery pack;

[0019] The assembly slot is connected with an arc-shaped cover for protecting the main control chip and the battery pack;

[0020] The battery pack is used to supply power to the bending moment detection module, the drilling pressure torque patch and the main control chip.

[0021] Furthermore, the rotation speed sensor, impact vibration sensor and temperature sensor are all connected to the main control chip to measure the rotation speed, impact amplitude and temperature of the drilling tool respectively.

[0022] Furthermore, the inner wall at one end of the drill collar body is sealed and fixedly connected to the outer wall at one end of the frame.

[0023] A multi-position drilling parameter monitoring method, applied to the multi-position drilling parameter monitoring device mentioned above, comprises the following steps:

[0024] Place a multi-position drilling parameter monitoring device in the oil well to record the bending moment, drilling pressure, torque, drilling tool speed, temperature and impact amplitude at multiple positions of the oil well and transmit them to the personnel on the ground;

[0025] By comparing the bending moment, drilling pressure, torque, drill speed, temperature and impact amplitude measured at the two locations, it is determined whether there is any abnormality. If there is an abnormality, the ground personnel will adjust the construction decision.

[0026] Beneficial effects of the present invention:

[0027] 1. The present invention uses a longitudinal power-on channel to energize the bending moment detection module. When in working state, the bending moment detection module can detect the bending moment of the drill collar body, which helps detection personnel obtain the bending moment data of the device, and then adjust the parameters of high-depth underground operations, reducing safety hazards.

[0028] 2. The present invention provides a multi-position drilling parameter monitoring method, which can collect engineering parameters such as rotation speed, impact vibration, temperature, bending moment, drilling pressure and torque at each position, and judge whether there is an abnormality by comparing the engineering parameters measured at two positions, and transmit the real-time data to the ground, and pass it to the ground personnel for construction decision-making as soon as possible, so as to solve the situation that the downhole drilling parameters can only be measured at a single position, and avoid the problem of underground safety hazards of the tool itself.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 An exploded schematic diagram of a multi-position drilling parameter monitoring device of the present invention is shown;

[0032] Figure 2 An overall view of a multi-position drilling parameter monitoring device of the present invention is shown;

[0033] Figure 3 An overall cross-sectional view of a multi-position drilling parameter monitoring device is shown;

[0034] Figure 4 An exploded view of the lateral energizing channel, metal guide posts, and the WOB torque patch is shown;

[0035] Figure 5 A cross-sectional view of a drill collar body is shown;

[0036] Figure 6 An exploded view of the weight-on-bit torque patch, strain gauge, and drill collar body is shown;

[0037] Figure 7 Shows Figure 1 A cross-sectional view of

[0038] Figure 8 A diagram showing the internal structure of the skeleton is shown;

[0039] Figure 9a A schematic diagram showing the bonding position of the drilling pressure torque patch of the present invention is shown;

[0040] Figure 9b shows the distribution diagram of the drilling pressure torque patch on the drill collar body;

[0041] Fig.9c A schematic diagram of a drilling pressure strain gauge bridge circuit is shown;

[0042] Figure 9d shows a schematic diagram of a torque strain gauge bridge circuit;

[0043] Fig.10a A schematic diagram showing the bonding position of the bending moment patch of the present invention is shown;

[0044] Fig.10b The distribution diagram of the bending moment patch on the drill collar body is shown;

[0045] Fig.10c A schematic diagram of a bending moment X strain gauge bridge circuit of the present invention is shown;

[0046] Fig.10d A schematic diagram of a bending moment Y strain gauge bridge circuit of the present invention is shown;

[0047] Fig.11 A flow chart of a multi-position drilling parameter monitoring method of the present invention is shown.

[0048] In the figure: 100, drill collar body; 110, first cylindrical groove; 111, longitudinal power-carrying groove; 112, transverse power-carrying groove; 120, metal guide column; 121, drilling pressure torque patch; 122, top cover one; 130, air flow input pipe; 131, strain gauge; 132, top cover two; 140, second cylindrical groove; 141, inner through hole; 142, conductive hole; 200, skeleton; 210, assembly groove; 220, main control chip; 230, battery pack; 240, arc cover; 300, sleeve. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] A multi-position drilling parameter monitoring device, such as Figure 1 As shown, it includes a drill collar body 100, a skeleton 200 and a sleeve 300. Figure 2 It can be seen that the skeleton 200 is located inside the sleeve 300 and connected to the drill collar body 100 , and the inner wall of one end of the drill collar body 100 is sealed and fixed to the outer wall of one end of the skeleton 200 . In addition, a rotation speed sensor, an impact vibration sensor and a temperature sensor are installed on the skeleton 200 .

[0051] like Figure 3 As shown, the drill collar body 100, the skeleton 200 and the sleeve 300 are generally columnar structures, and are hollow inside. Components for measurement are installed on the side walls of the drill collar body 100 and the skeleton 200. In the working state, each component can detect and collect the formation data of the drilling, and then transmit the data to help the ground staff obtain downhole information.

[0052] In some embodiments, the drill collar body 100 is provided with a plurality of groups of first cylindrical grooves 110 and a group of second cylindrical grooves 140 along the axial direction, and in each group, a plurality of first cylindrical grooves 110 and a plurality of second cylindrical grooves 140 are provided, and are evenly distributed along the circumference of the outer wall of the drill collar body 100. Moreover, in the same transverse cross section, a transverse power-conducting groove 112 for communication is provided between the bottoms of adjacent first cylindrical grooves 110, and in the same longitudinal cross section, the bottom side walls of the second cylindrical grooves 140 and all the first cylindrical grooves 110 are provided with the same longitudinal power-conducting groove 111.

[0053] It should be noted that in Figure 1 and Figure 2 In the drill collar body 100, two groups of first cylindrical grooves 110 are provided, and each group of first cylindrical grooves 110 has a 90° angle along the circumferential direction, and the number is four. One group of second cylindrical grooves 140 is provided, and the angle along the circumferential direction is 90°, and the number is four. In addition, the first cylindrical grooves 110 are provided on the outermost side of the drill collar body 100.

[0054] like Figure 4As shown, four first cylindrical slots 110 are connected by a transverse power-conducting slot 112, and the first cylindrical slot 110 is a countersunk slot with a metal guide column 120 installed inside, and a drilling pressure torque patch 121 is attached to the top surface of the metal guide column 120; a top cover 122 is installed on the top of the drilling pressure torque patch 121, and the top cover 122 is snap-fitted with the corresponding second cylindrical slot 140.

[0055] It should be noted that the drilling pressure torque patch 121 is composed of a drilling pressure strain gauge, a torque strain gauge and a bending moment strain gauge. The type of the drilling pressure torque patch 121 can be replaced according to the measurement requirements. The metal guide column 120 can conduct electricity for the drilling pressure torque patch 121. The inner wall of the first cylindrical groove 110 is clamped with the top cover 122 and the bottom surface of the top cover 122 is in contact with the surface of the drilling pressure torque patch 121. The top cover 122 provides protection for the drilling pressure torque patch 121. Two adjacent groups of drilling pressure torque patches 121 located in the same longitudinal section are electrically connected in series with the wire through the longitudinal power-on groove 111. Two groups of drilling pressure torque patches 121 located in the same transverse section are electrically connected in series with the wire through the transverse power-on groove 112. Four groups of drilling pressure torque patches 121 located in the same longitudinal section form a Wheatstone bridge structure. The drilling pressure torque patches 121 are installed in the four first cylindrical grooves 110. 10 increases the strain amount and reduces the interference effect. Specifically, the drilling pressure torque patch 121 can select the strain gauge 131 of AVIC Electro-Mechanical Measurement. Since it adopts high-precision photolithography technology, it can form high-precision grid wires on the strain gauge 131. For example, the ratio coefficient of the length of the lateral sensitive grid and the longitudinal sensitive grid is large, so that the directional dispersion coefficient of the sensitivity is small, and the high temperature resistance, creep and mechanical hysteresis are very small, which improves the measurement accuracy. In particular, four groups of drilling pressure torque patches 121 bridges are used to design a Wheatstone bridge structure, that is, the drilling pressure torque patches 121 in the same bridge arm direction are first connected in series, and then connected in series with the drilling pressure torque patches 121 in other bridge arm directions, and finally the drilling pressure torque patches 121 form a Wheatstone bridge structure inside all the first cylindrical slots 110. This design can offset the influence of temperature changes on the measurement and improve the measurement sensitivity.

[0056] like Figure 5 and Figure 6As shown, a bending moment detection module is installed in the second cylindrical groove 140, and the bending moment detection module is used to detect the bending moment of the drill collar body 100. Specifically, an inner through hole 141 and a conductive hole 142 are provided on the bottom surface of the second cylindrical groove 140. An airflow input pipe 130 is installed in the inner through hole 141, a strain gauge 131 is installed on the top of the airflow input pipe 130, and a top cover 132 is installed on the top of the strain gauge 131, and the top cover 132 is snap-connected with the second cylindrical groove 140. Moreover, the drill collar body 100 is a hollow structure, and the bottom of the airflow input pipe 130 is connected to the hollow part of the drill collar body 100. In addition, a conductive column connected to the airflow input pipe 130 is installed in the conductive hole 142, and the conductive column is connected to the wire in the longitudinal power-on groove 111.

[0057] It should be noted that the airflow input pipe 130 can input the average flow rate of the drilling tool during operation to the strain gauge 131, and the four sets of strain gauges 131 are electrically connected in series with the corresponding internal wires of the longitudinal energized slot 111 through the conductive holes 142. In addition, when measuring the inner and outer annular pressures of the drilling tool, calculations can be used, as follows:

[0058]

[0059] Where, P is the pressure loss; f is the friction coefficient, which depends on the rheology of the drilling fluid, the annulus size and the annulus flow pattern; L is the length of the well section; V is the average flow velocity measured by the strain gauge 131; D o is the inner diameter of the wellbore; D p is the outer diameter of the drill string; ρ is the density of the drilling fluid; k u is the rotation factor, which takes into account the rotation of the drill string; R is the eccentricity factor, which takes into account the eccentricity of the drill string in the wellbore.

[0060] In some embodiments, a plurality of assembly slots 210 are provided on the circumferential surface of the skeleton 200, a portion of the assembly slots 210 are used to install the main control chip 220, and the remaining portion of the assembly slots 210 are used to install the battery pack 230. In addition, the assembly slots 210 are clamped with arc covers 240 for protecting the main control chip 220 and the battery pack 230; the battery pack 230 is used to supply power to the bending moment detection module, the drilling pressure torque patch 121 and the main control chip 220.

[0061] Specifically, Figure 7 and Figure 8As shown, the front inner wall of the drill collar body 100 is sealed and fixedly connected to the outer wall at the end of the skeleton 200, the skeleton 200 provides support for the drill collar body 100, the skeleton 200 is sleeved with the sleeve 300, and the inner wall at the end of the sleeve 300 is sealed and fixedly connected to the front outer wall of the drill collar body 100, the sleeve 300 can provide protection for the battery pack 230 and the main control chip 220 on the skeleton 200, and the sleeve 300 type structural protection can improve the pressure resistance performance of the engineering parameters, and the outer wall of the skeleton 200 is evenly distributed with four assembly grooves 210 at an interval of 90° along the circumferential direction, and the four groups of longitudinal power-on grooves 111 respectively penetrate one side of the four groups of assembly grooves 210, and the two opposite groups of assembly grooves 210 The main control chip 220 is fixedly installed on the inner wall, and the battery pack 230 is fixedly installed on the inner walls of the other two opposite groups of assembly grooves 210. The battery pack 230 and the main control chip 220 are installed on the skeleton 200 and are 90° apart, which can improve the strength of the drill collar. The drilling pressure torque patch 121 and the strain gauge 131 are electrically connected to the battery pack 230 and the main control chip 220. The arc cover 240 is fixedly installed on the outer side wall of the top of the four groups of assembly grooves 210. The main control chip 220 and the battery pack 230 are both located in the arc cover 240. Specifically, the drilling pressure torque patch 121 adopts an independent structure, and the patch area adopts a variable diameter treatment, which increases the strain of the patch area. The strain is increased by 10 -6 mm increased to 10 -4 mm, and the strain caused by the change of unit drilling pressure torque increases, which reduces the interference effect in the signal processing process. At the same time, the four-group patch bridge design can better eliminate the error caused by the asymmetry of the body structure and improve the measurement accuracy.

[0062] In some embodiments, a speed sensor, an impact vibration sensor and a temperature sensor are provided inside the main control chip 220. The speed sensor, the impact vibration sensor and the temperature sensor can respectively measure the speed, impact amplitude and temperature of the drill bit. The speed sensor, the impact vibration sensor, the temperature sensor, the strain gauge 131 and the drilling pressure torque patch 121 are all connected to the output of the main control chip 220. The main control chip 220 is connected to the output of the battery pack 230. The speed sensor, the impact vibration sensor and the temperature sensor, the speed sensor, the impact vibration sensor, the temperature sensor, the strain gauge 131 and the drilling pressure torque patch 121 are all connected to the output of the battery pack 230. The battery pack 230 provides power for each sensor, patch and the main control chip 220.

[0063] It should be noted that the use process of the present invention is as follows: a person skilled in the art installs the skeleton 200 on the drill collar body 100, and simultaneously sleeves the sleeve 300 outside the skeleton 200 to connect it with the drill collar body 100, thereby completing the assembly of the drill tool. When the drill tool is working underground, the above-mentioned drilling pressure torque patch 121 is used for detection:

[0064] 1) Measure the drilling pressure and torque of the drilling tool:

[0065] A fixed excitation voltage is applied to the two groups of Wheatstone bridge structures, and two different resistors of the Wheatstone bridge are connected in series at four different angles, such as: the resistor R1 in the first Wheatstone bridge is connected to the resistors R1, R2, R3, and R4 in the second Wheatstone bridge, respectively. After that, the output voltage is amplified and collected through the circuit. The polarity and magnitude change of the output voltage can reflect the direction and magnitude of the torque and drilling pressure on the drill collar body 100. Figure 9a-9c .

[0066] exist Figure 9a In the figure, looking down from the drill collar female buckle to the male buckle, holes F1 to F4 correspond to the positions of the four first cylindrical grooves 110, and each drilling pressure torque patch 121 includes a drilling pressure strain gauge and a torque strain gauge, wherein each drilling pressure torque patch 121 has two drilling pressure strain gauges, numbered RP41 and RP12, RP21 and RP22, RP31 and RP32, and RP41 and RP42; similarly, each drilling pressure torque patch 121 also has two torque strain gauges, numbered RJ11 and RJ12, RJ21 and RJ22, RJ31 and RJ32, and RJ41 and RJ42. In addition, Figure 9b As shown, Figure 9a In the projection from the female buckle to the male buckle, F1, F2, F3 and F4 are arranged clockwise. Fig.9c As shown, two drilling pressure strain gauges (350 ohms each) are a resistive load, as are the four resistors of the first Wheatstone bridge. Similarly, Figure 9d As shown, two drilling pressure strain gauges (1000 ohms each) are a resistive load, as are the four resistors of the second first Wheatstone bridge. Fig.9c and Figure 9d In the figure, Vcc represents the power supply voltage input terminal, V+ and V- represent the positive and negative signal voltage output terminals respectively, and GND represents the ground terminal.

[0067] 2) Measure the bending moment of the drill:

[0068] Similarly, a fixed excitation voltage is applied to the two groups of Wheatstone bridge structures, and two different resistors of the Wheatstone bridge are connected in series at four different angles, such as: the resistor R1 in the first Wheatstone bridge is connected to the resistors R1, R2, R3, and R4 in the second Wheatstone bridge, respectively. After that, the output voltage is amplified and collected through the circuit. The polarity and magnitude change of the output voltage can reflect the direction and magnitude of the bending moment suffered by the drill collar body 100. Figures 10a-10d .

[0069] exist Fig.10aIn the figure, looking down from the drill collar female buckle to the male buckle, the W1 hole to the W4 hole correspond to the positions of the four second cylindrical grooves 140, and each strain gauge 131 includes a bending moment X strain gauge and a bending moment Y strain gauge, wherein each strain gauge 131 has two bending moment X strain gauges and bending moment Y strain gauges, and the bending moment X strain gauges are numbered R11, R12, R13, R14, R31, R32, R33 and R34; the bending moment Y strain gauges are numbered R21, R22, R23, R24, R41, R42, R43 and R44. In addition, Fig.10b As shown, Fig.10a In the projection from the female buckle to the male buckle, W1, W2, W3 and W4 are arranged clockwise. Fig.10c As shown, two bending moment X strain gauges (350 ohms each) are loaded with a resistor, as are the four resistors in the first Wheatstone bridge. Similarly, in Fig.10d In the example, two bending moment Y strain gauges (350 ohms each) are used as a resistive load, as are the four resistors in the second first Wheatstone bridge. Fig.10c and Fig.10d In the figure, Vcc represents the power supply voltage input terminal, V+ and V- represent the positive and negative signal voltage output terminals respectively, and GND represents the ground terminal.

[0070] like Fig.11 As shown, a monitoring method is used for Figure 1-Figure 1 0 monitoring device, comprising the following steps:

[0071] S1: Place a multi-position drilling parameter monitoring device in the oil well to record the bending moment, drilling pressure, torque, drill speed, temperature and impact amplitude at multiple positions of the oil well and transmit them to the personnel on the ground.

[0072] S2: The ground personnel compare the bending moment, drilling pressure, torque, drill speed, temperature and impact amplitude measured at the two locations to determine whether there is an abnormality. If there is an abnormality, the ground personnel adjust the construction decision to solve the problem that the downhole drilling parameters can only be measured at a single location to avoid the problem of underground safety hazards of the tool itself.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-position drilling parameter monitoring device, characterized in that: It comprises a drill collar body (100), a frame (200) and a sleeve (300); The skeleton (200) is located inside the sleeve (300) and connected to the drill collar body (100); The drill collar body (100) is provided with a plurality of groups of first cylindrical grooves (110) and a group of second cylindrical grooves (140) along the axial direction; in each group, a plurality of first cylindrical grooves (110) and second cylindrical grooves (140) are provided and are circumferentially distributed along the outer wall of the drill collar body (100); In the same transverse cross section, a transverse current-carrying channel (112) for communication is provided between the bottoms of adjacent first cylindrical grooves (110), and in the same longitudinal cross section, the bottom side walls of the second cylindrical groove (140) and all the first cylindrical grooves (110) are provided with the same longitudinal current-carrying channel (111); A bending moment detection module is installed in the second cylindrical groove (140), and the bending moment detection module is used to detect the bending moment of the drill collar body (100); A rotation speed sensor, an impact vibration sensor and a temperature sensor are installed on the frame (200).

2. A multi-position drilling parameter monitoring device according to claim 1, characterized in that: The first cylindrical groove (110) is a countersunk groove, and a metal guide column (120) is installed inside. A drilling pressure torque patch (121) is attached to the top surface of the metal guide column (120); a top cover (122) is installed on the top of the drilling pressure torque patch (121), and the top cover (122) is clamped with the corresponding first cylindrical groove (110).

3. A multi-position drilling parameter monitoring device according to claim 2, characterized in that: In the same cross section, the metal guide pillars (120) are connected in series via the wires in the transverse power-conducting grooves (112); in the same longitudinal cross section, adjacent metal guide pillars (120) are connected via the wires in the longitudinal power-conducting grooves (111).

4. The multi-position drilling parameter monitoring device according to claim 1, characterized in that: The bottom surface of the second cylindrical groove (140) is provided with an inner through hole (141) and a conductive hole (142); An airflow input pipe (130) is installed in the inner through hole (141), a strain gauge (131) is installed on the top of the airflow input pipe (130), a second top cover (132) is installed on the top of the strain gauge (131), and the second top cover (132) is clamped with the second cylindrical groove (140).

5. A multi-position drilling parameter monitoring device according to claim 4, characterized in that: The drill collar body (100) is a hollow structure, and the bottom of the airflow input pipe (130) is connected to the hollow part of the drill collar body (100).

6. A multi-position drilling parameter monitoring device according to claim 4, characterized in that: A conductive column connected to the airflow input pipe (130) is installed in the conductive hole (142), and the conductive column is connected to the wire in the longitudinal current channel (111).

7. The multi-position drilling parameter monitoring device according to claim 3, characterized in that: The skeleton (200) is provided with a plurality of assembly grooves (210) on its circumferential surface, a portion of the assembly grooves (210) being used to install a main control chip (220), and the remaining portion of the assembly grooves (210) being used to install a battery pack (230); The assembly groove (210) is clamped with an arc-shaped cover (240) for protecting the main control chip (220) and the battery pack (230); The battery pack (230) is used to supply power to the bending moment detection module, the drilling pressure torque patch (121) and the main control chip (220).

8. The multi-position drilling parameter monitoring device according to claim 7, characterized in that: The rotation speed sensor, impact vibration sensor and temperature sensor are all connected to the main control chip (220) and are used to respectively measure the rotation speed, impact amplitude and temperature of the drilling tool.

9. A multi-position drilling parameter monitoring device according to any one of claims 1 to 8, characterized in that: The inner wall at one end of the drill collar body (100) is sealed and fixedly connected to the outer wall at one end of the framework (200).

10. A multi-position drilling parameter monitoring method, applied to a multi-position drilling parameter monitoring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Place a multi-position drilling parameter monitoring device in the oil well to record the bending moment, drilling pressure, torque, drilling tool speed, temperature and impact amplitude at multiple positions of the oil well and transmit them to the personnel on the ground; By comparing the bending moment, drilling pressure, torque, drill speed, temperature and impact amplitude measured at the two locations, it is determined whether there is any abnormality. If there is an abnormality, the ground personnel will adjust the construction decision.

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