Intelligent drilling rig drill pipe deformation perception detection and early warning system

Abstract

The present invention relates to the technical field of drilling rig drill pipes, and in particular to an intelligent drilling rig drill pipe deformation sensing detection and early warning system, including a drill pipe body; a drill pipe axial and circumferential deformation sensing system is arranged in the drill pipe body to monitor the deformation of the drill pipe body; a drill pipe operation early warning system is electrically connected to the drill pipe axial and circumferential deformation sensing system to receive the deformation of the drill pipe, and to issue an early warning when there is a safety hazard in the drill pipe body; a drill pipe safety protection system is connected to the drill pipe body to buffer the drill pipe body when the drill pipe body is broken. The drill pipe axial and circumferential deformation sensing system identifies the circumferential and axial deformation size and deformation position of the drill pipe during operation, and predicts the failure form. The drill pipe operation early warning system triggers a safety early warning signal according to the circumferential and axial deformation of the drill pipe to remind the operation status of the drill pipe; the drill pipe safety protection system absorbs the impact energy of the fracture process, and triggers the warning light to flash, thereby reducing safety risks.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling rig drill rods, and in particular to an intelligent drilling rig drill rod deformation sensing, detection and early warning system. Background Art

[0002] The drill rod is a key component of the drilling rig. It bears the load during the operation of the drilling rig and is widely used in infrastructure, civil engineering and other industries. During the operation, the drill rod will bear impact loads and bending loads. At the same time, due to the uncertainty of underground materials, the stress state is complex. On the other hand, the drill rod works below the ground, and it is impossible to quickly identify the circumferential and axial deformation of the drill rod from a visual perspective. Once the drill rod breaks, it has a large impact force, which will cause serious safety risks to nearby workers. Therefore, it is urgent to develop a new type of intelligent deformation-aware safety multifunctional drilling rig drill rod.

[0003] At present, there are three technical problems in the deformation monitoring and safety of the drill pipe of the drilling rig:

[0004] 1. The drill pipe of the drilling rig is its key bearing structure. During long-term high-intensity working, the drill pipe will produce axial deformation and circumferential deformation due to the action of axial load and bending load. When the deformation reaches a certain value, it will even produce cracks. However, the deformation state of the drill pipe cannot be directly obtained at present, especially the lack of identification of the axial deformation and circumferential deformation of the drill pipe.

[0005] 2. The drill pipe of a drilling rig is often buried in the soil, sand and gravel, and it is difficult to understand its axial and circumferential deformation status in real time. Once the drill pipe undergoes large axial or circumferential plastic deformation or produces defects such as cracks, if the axial and circumferential deformation is not identified and warned in time, and high-intensity load-bearing work continues, it will cause the drill pipe to break, posing a serious safety hazard. At present, the safety status of the drill pipe cannot be identified, and there is a lack of warning devices for the axial and circumferential deformation of the drill pipe of the drilling rig.

[0006] 3. Once the drill pipe cracks or even breaks, it will generate a strong impact force during the fracture process. Since the existing drill pipe lacks safety protection devices, it will pose a serious safety risk to nearby operators. Summary of the invention

[0007] The technical problem to be solved by the present invention is: in order to solve the problem that the current drilling rig drill rod lacks deformation perception, operation warning and safety protection, and to ensure the operation safety of the drilling rig drill rod, the present invention provides an intelligent drilling rig drill rod deformation perception detection and warning system.

[0008] In the first aspect, the technical solution adopted by the present invention to solve its technical problem is: an intelligent drilling rig drill pipe deformation sensing detection and early warning system, including a drill pipe body; a drill pipe axial and circumferential deformation sensing system, the drill pipe axial and circumferential deformation sensing system is arranged in the drill pipe body to monitor the deformation of the drill pipe body; a drill pipe operation early warning system, the drill pipe operation early warning system is connected to the drill pipe axial and circumferential deformation sensing system to receive the circumferential and axial deformation of the drill pipe and evaluate the safety of the drill pipe body, and issue an early warning when there is a safety hazard in the drill pipe body; a drill pipe safety protection system, the drill pipe safety protection system is connected to the drill pipe body to absorb the impact energy during the fracture of the drill pipe body when the drill pipe body is fractured.

[0009] Through the above technical solution, the deformation size and position of the drill pipe during operation can be intelligently identified through the axial and circumferential deformation sensing system of the drill pipe, and the failure form can be predicted. The drill pipe operation early warning system can trigger a safety early warning signal according to the deformation of the drill pipe to remind the operation status of the drill pipe; the drill pipe safety protection system can absorb the impact energy of the fracture process, trigger the warning light to flash, and reduce safety risks.

[0010] Further, specifically, the drill pipe axial and circumferential deformation sensing system includes a plurality of axial deformation sensors, a plurality of circumferential deformation sensors, deformation sensor data lines, and deformation and force sensor data acquisition devices; a plurality of the axial deformation sensors and a plurality of the circumferential deformation sensors are distributed on the inner wall of the drill pipe body in a matrix form, a plurality of the axial deformation sensors and a plurality of the circumferential deformation sensors are distributed at different heights of the drill pipe, the axial deformation sensor is used to measure the axial deformation of the drill pipe during operation, and the circumferential deformation sensor is used to measure the circumferential deformation of the drill pipe during operation.

[0011] Furthermore, each drill pipe body is provided with at least four groups of the axial deformation sensors and the circumferential deformation sensors in the height direction, and the length of the drill pipe body is proportional to the number of groups of the axial deformation sensors and the circumferential deformation sensors.

[0012] Furthermore, a plurality of the axial deformation sensors and a plurality of the circumferential deformation sensors transmit the deformation signal of the drill pipe body to the deformation and force sensor data acquisition device through the deformation sensor data line, thereby obtaining the circumferential and axial deformation of the drill pipe body at different positions and angles, and identifying and locating the deformation position of the drill pipe body through deformation distribution calculation, and predicting the failure mode of the drill pipe through the deformation distribution law, that is, when the axial deformation is too large, it is judged to be a failure caused by excessive axial impact load, and when the circumferential deformation is too large, it is judged to be a failure caused by excessive bending impact load.

[0013] Furthermore, the drill pipe operation warning system includes a warning light group, a warning light group data control line, a deformation and force threshold judgement device, a deformation and force threshold judgement device data line, a deformation and force sensor data acquisition device and a warning light group power line port.

[0014] Furthermore, the deformation and force threshold judger is connected to the deformation and force sensor data acquisition device, and the deformation degree of the drill rod body at different positions and angles obtained by the deformation and force sensor data acquisition device is identified. When it is within the safe deformation range, the green light of the warning light group is lit; when it exceeds the safe deformation range, the yellow light of the warning light group is triggered to light up, reminding the operator to pay attention to the safe operation of the drill rod; when it exceeds the allowable deformation, the red light of the warning light group is triggered to light up, reminding the operator to pay attention to the drill rod will break and fail.

[0015] Furthermore, the warning light group is installed on the top of the drill rod body, so that the staff can understand the working status of the drill rod in real time.

[0016] Furthermore, the drill rod safety protection system includes an energy buffer spring fixing device data line, a deformation and force sensor data acquisition device, an upper fixing frame, a fixing rod, a force sensor, an energy buffer spring and a lower fixing frame.

[0017] Furthermore, the energy buffer spring is connected and fixed to the drill rod via the upper fixing frame, the fixing rod and the lower fixing frame, and each drill rod body includes at least four drill rod energy buffer springs in the height direction.

[0018] Furthermore, the force sensor is installed in the middle of the energy buffer spring. When the drill rod breaks, the force on the force sensor will be significantly increased, and the force will be transmitted to the deformation and force sensor data acquisition device through the data line of the buffer spring fixing device, and then transmitted to the deformation and force threshold judgement device through the data line of the deformation and force threshold judgement device. When it exceeds the allowable force value, the red and yellow lights of the warning light group are triggered to flash alternately, reminding the operator that the drill rod body has broken and failed, and reminding and warning the failure.

[0019] The beneficial effects of the present invention are:

[0020] 1. Through the drill pipe axial and circumferential deformation sensing system, the deformation size and position of the drill pipe during operation can be intelligently identified, and the failure form can be predicted. Through the drill pipe operation early warning system, according to the deformation of the drill pipe, the safety early warning signal is triggered to remind the operation status of the drill pipe; through the drill pipe safety protection system, the impact energy of the fracture process is absorbed, and the warning light is triggered to flash, reducing safety risks.

[0021] 2. It breaks through the deficiency of traditional drilling rig drill pipe that cannot obtain the deformation state of each position of the drill pipe. Through the drill pipe axial and circumferential deformation sensing system, the deformation state of the drill pipe at different positions and angles can be obtained in real time during the working process of the drill pipe.

[0022] 3. It solves the problem that the drill rod of the traditional drilling rig cannot warn of the safety risks generated during the working process. Through the drill rod operation early warning system, when the deformation exceeds the safe deformation range, the yellow light warning light is triggered, and when it exceeds the allowable deformation, the red light warning light is triggered.

[0023] 4. It solves the problem of lack of safety protection devices on the drill rods of traditional drilling rigs. Through the energy buffer spring in the drill rod safety protection system, when the drill rod breaks suddenly, it can absorb the impact energy generated by the break and trigger the red light of the warning light group to flash, thereby effectively reducing the safety risks caused by its sudden failure process.

[0024] 5. The intelligent drilling rig drill pipe deformation sensing detection and early warning system includes the following working principles: the first step is that the drilling rig is subjected to various impact loads after operation. Under the action of the impact load, the drill pipe body of the drilling rig will be deformed. Several axial deformation sensors and several circumferential deformation sensors in the axial and circumferential deformation sensing system of the drill pipe body recognize the deformation of the drill pipe body at different heights and different circumferential angles.

[0025] In the second step, the deformation amount will be transmitted to the deformation and force sensor data acquisition device through the deformation sensor data line. The deformation sensors arranged in matrix will receive the deformation conditions of different positions and angles of the drilling rig, and identify and locate the deformation position of the drill pipe body through deformation distribution calculation. The failure form of the drill pipe body can be predicted through the deformation distribution law.

[0026] In the third step, the deformation and force threshold judgement device judges the deformation degree of the drill pipe body through the deformation sensor. When it is within the safe deformation range, the green light of the warning light group is lit; when it exceeds the safe deformation range, the yellow light of the trigger warning light group is lit; when it exceeds the allowable deformation amount, the red light of the trigger warning light group is lit.

[0027] The fourth step is that when the drilling rig is suddenly overloaded during operation, causing the drill pipe body to suddenly break, the drill pipe body energy buffer spring absorbs the impact energy generated by the fracture, and at the same time triggers the red and yellow lights of the warning light group to flash alternately, thereby effectively reducing the safety risks caused by its sudden failure process and providing reminders and warnings of the failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the intelligent drilling rig drill pipe deformation sensing detection and early warning system.

[0030] Figure 2 It is a schematic diagram of the axial and circumferential deformation sensing system of the intelligent drilling rig drill pipe deformation sensing detection and early warning system.

[0031] Figure 3 It is a schematic diagram of the drill rod operation warning system of the intelligent drilling rig drill rod deformation sensing detection and warning system.

[0032] Figure 4 It is a schematic diagram of the drill rod safety protection system of the intelligent drilling rig drill rod deformation sensing detection and early warning system.

[0033] Figure 5 It is the working principle diagram of the intelligent drilling rig drill pipe deformation perception detection and early warning system.

[0034] Figure 6 It is the overall structure diagram of embodiment 2 of the intelligent drilling rig drill pipe deformation perception detection and early warning system.

[0035] Figure 7 It is a schematic diagram of a reinforcing rod in an embodiment of an intelligent drilling rig drill rod deformation sensing detection and early warning system.

[0036] Figure 8 It is a structural diagram of Example 3 of an intelligent drilling rig drill pipe deformation sensing detection and early warning system.

[0037] In the figure: 1, buffer spring fixture data line; 2, deformation sensor data line; 3, drill rod connector; 4, red light; 5, yellow light; 6, green light; 7, drill rod body; 71, countersunk hole; 8, energy buffer spring fixture one; 9, deformation sensor group one; 10, energy buffer spring fixture two; 11, deformation sensor group two; 12, energy buffer spring fixture three; 13, deformation sensor group three; 14, drill bit; 141, anti-drop groove; 142, first fixing hole; 15, energy buffer spring fixture four; 16, energy buffer spring fixture five; 17, energy buffer spring fixture six; 18, red light data control line; 19, yellow light data control line; 20, green light data control line; 21, deformation and force threshold value judgement; 22, deformation and force threshold value judgement data line; 23, deformation and force sensor data line data collection device; 24, axial deformation sensor one; 25, axial deformation sensor two; 26, axial deformation sensor three; 27, axial deformation sensor four; 28, circumferential deformation sensor four; 29, circumferential deformation sensor three; 30, circumferential deformation sensor two; 31, circumferential deformation sensor one; 32, red light power line port; 33, yellow light power line port; 34, green light power line port; 35, upper fixing frame; 36, fixing rod; 37, force sensor; 38, energy buffer spring; 39, lower fixing frame; 41, anti-hanging rod; 411, second fixing hole; 42, limit plate; 43, reinforcement rod; 431, locking head; 432, locking bolt; 434, installation groove; 436, axial deformation sensor five; 44, honeycomb reinforcement plate; 441, avoidance groove; 442, axial deformation sensor six; 45, limit rod. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] Embodiment 1:

[0040] like Figures 1 to 5 As shown, the present invention discloses an intelligent drilling rig drill pipe deformation sensing detection and early warning system, including a drill pipe body 7, a drill pipe axial and circumferential deformation sensing system, a drill pipe operation early warning system and a drill pipe safety protection system. A drill bit 14 is also fixedly connected to the bottom of the drill pipe body 7.

[0041] The drill pipe axial and circumferential deformation sensing system comprises a plurality of axial deformation sensors, a plurality of circumferential deformation sensors, a deformation sensor data line 2, and a deformation and force sensor data acquisition device 23.

[0042] Specifically, a number of axial deformation sensors and a number of circumferential deformation sensors are distributed on the inner wall of the drill pipe body 7 in a matrix form. A number of axial deformation sensors and a number of circumferential deformation sensors are distributed at different heights of the drill pipe body 7. Each drill pipe body 7 is arranged with at least four groups of axial deformation sensors and circumferential deformation sensors in the height direction. If the length of the drill pipe body 7 increases, a number of groups of axial deformation sensors and circumferential deformation sensors can be appropriately added in the height direction, and four of each group of axial deformation sensors and circumferential deformation sensors are evenly distributed in the circumference of the drill pipe body 7. The axial deformation sensor is used to measure the axial deformation of the drill pipe body 7 during operation, and the circumferential deformation sensor is used to measure the circumferential deformation of the drill pipe body 7 during operation.

[0043] More specifically, a number of axial deformation sensors and a number of circumferential deformation sensors transmit the deformation signal of the drill pipe body 7 to the deformation and force sensor data acquisition device 23 through the deformation sensor data line 2, so as to obtain the deformation conditions of the drill pipe body 7 at different positions and angles of the drilling rig, and identify and locate the deformation position of the drill pipe body 7 through deformation distribution calculation, and predict the failure form of the drill pipe body 7 through the deformation distribution law, that is, when the axial deformation is too large, it is judged to be the failure caused by the excessive axial impact load, and when the circumferential deformation is too large, it is judged to be the failure caused by the excessive bending impact load.

[0044] In this embodiment, a plurality of axial deformation sensors and a plurality of circumferential deformation sensors form three deformation sensor groups, namely, deformation sensor group 1 9 , deformation sensor group 2 11 and deformation sensor group 3 13 . The deformation sensor group 1 9 , deformation sensor group 2 11 and deformation sensor group 3 13 are arranged along the axial direction of the drill pipe body 7 .

[0045] The annular deformation sensor includes an annular deformation sensor 28, annular deformation sensor 29, annular deformation sensor 30, and annular deformation sensor 1 31. The axial deformation sensor includes an axial deformation sensor 1 24, an axial deformation sensor 2 25, axial deformation sensor 3 26, and axial deformation sensor 4 27.

[0046] like Figure 2 The axial deformation sensor 1 24, the axial deformation sensor 2 25, the axial deformation sensor 3 26, the axial deformation sensor 4 27, the annular deformation sensor 4 28, the annular deformation sensor 3 29, the annular deformation sensor 2 30, and the annular deformation sensor 1 31 are arranged in a matrix manner and installed on the inner wall of the drill pipe body 7 through fixing glue. The matrix arrangement is that the axial deformation sensor 1 24, the axial deformation sensor 2 25, the axial deformation sensor 3 26, the axial deformation sensor 4 27, the annular deformation sensor 4 28, the annular deformation sensor 3 29, the annular deformation sensor 2 30, and the annular deformation sensor 1 31 are connected in sequence to form a rectangle. Figure 2The schematic diagram of unfolding the above sensors shows that they are distributed in a rectangular shape after unfolding. Axial deformation sensor 1 24, axial deformation sensor 2 25, axial deformation sensor 3 26, axial deformation sensor 4 27, circumferential deformation sensor 4 28, circumferential deformation sensor 3 29, circumferential deformation sensor 2 30, circumferential deformation sensor 1 31 are distributed at different heights of the drill rod body 7. The drill rod body 7 is arranged with at least 4 groups of axial deformation sensor 1 24, axial deformation sensor 2 25, axial deformation sensor 3 26, axial deformation sensor 4 27, circumferential deformation sensor 4 28, circumferential deformation sensor 3 29, circumferential deformation sensor 2 30, circumferential deformation sensor 1 31 in the height direction. If the length of the drill rod body 7 increases, several groups of deformation sensors can be appropriately added in the height direction, and each group of deformation sensors has four evenly distributed in the circumferential direction of the drill rod body 7.

[0047] Axial deformation sensor 1 24, axial deformation sensor 2 25, axial deformation sensor 3 26, and axial deformation sensor 4 27 are used to measure the axial deformation of the drill pipe body 7 during operation, and circumferential deformation sensor 4 28, circumferential deformation sensor 3 29, circumferential deformation sensor 2 30, and circumferential deformation sensor 1 31 are used to measure the circumferential deformation of the drill pipe body 7 during operation. During the operation of the drilling rig, the drill pipe body 7 will be deformed by the load, thereby causing the axial deformation sensor 1 24, the axial deformation sensor 25, the axial deformation sensor 3 26, the axial deformation sensor 4 27, the circumferential deformation sensor 4 28, the circumferential deformation sensor 3 29, the circumferential deformation sensor 2 30, and the circumferential deformation sensor 1 31 to deform and produce a resistance change. The deformation is transmitted to the deformation and force sensor data acquisition device 23 through the deformation sensor data line 2, so as to obtain the circumferential and axial deformation of the drilling rig drill pipe body 7 at different positions and angles, and the deformation distribution is calculated by the deformation and force sensor data acquisition device 23 to identify and locate the deformation position of the drill pipe body 7. According to the distribution law of deformation, the failure form of the drill pipe body 7 is predicted, that is, when the axial deformation is too large, it is judged as a failure caused by excessive axial impact load, and when the circumferential deformation is too large, it is judged as a failure caused by excessive bending impact load.

[0048] The operation warning system of the drill pipe body 7 includes a warning light group, a warning light group data control line, a deformation and force threshold value judgement device 21, a deformation and force threshold value judgement device data line 22, a deformation and force sensor data acquisition device 23, and a warning light group power line port. The warning light group power line port includes a red light power line port 32, a yellow light power line port 33, and a green light power line port 34. The warning light group data control line includes a red light data control line 18, a yellow light data control line 19, and a green light data control line 20. The warning light group has a yellow light 5, a red light 4, and a green light 6.

[0049] Specifically, the deformation and force threshold value judger 21 is connected to the deformation and force sensor data acquisition device 23. By identifying the circumferential and axial deformation degrees of the drill pipe body 7 at different positions and angles obtained by the deformation and force sensor data acquisition device 23, when all the circumferential and axial deformation sensors are within the safe deformation range (the safe deformation range is determined according to the yield deformation of the drill pipe body 7 material), the green light 6 of the warning light group is lit; when all the axial deformation sensors exceed the safe deformation range, the yellow light 5 of the warning light group is triggered to be always on, reminding the operator to pay attention to the safe operation of the drill pipe body 7; when the axial deformation sensor exceeds the allowable deformation (the allowable deformation range is determined according to 80% of the fracture deformation of the drill pipe body 7 material), the red light 4 of the warning light group is triggered to be always on, reminding the operator to pay attention to the fracture failure of the drill pipe body 7 and reminding the operator to reduce the axial impact load; when the circumferential deformation sensor exceeds the allowable deformation (the allowable deformation range is determined according to 80% of the fracture deformation of the drill pipe body 7 material), the red light 4 of the warning light group is triggered to flash, reminding the operator to pay attention to the fracture failure of the drill pipe body 7 and reminding the operator to reduce the bending moment impact load. The green light 6 of the warning light group, the yellow light 5 of the warning light group, and the red light 4 of the warning light group are all installed on the top of the drill rod body 7, so that the staff can understand the working status of the drill rod body 7 in real time.

[0050] The safety protection system of the drill pipe body 7 includes a buffer spring fixing device data line 1, a deformation and force sensor data acquisition device 23, an upper fixing frame 35, a fixing rod 36, a force sensor 37, an energy buffer spring 38, a lower fixing frame 39 and an energy buffer spring fixing device.

[0051] Specifically, the drill rod body 7 and the energy buffer spring 38 are connected to the drill rod through an energy buffer spring fixing device. The energy buffer spring fixing device includes an upper fixing frame 35, a fixing rod 36, and a lower fixing frame 39. The upper fixing frame 35 and the lower fixing frame 39 are both connected and fixed to the drill rod body 7. The energy buffer spring 38 is sleeved on the fixing rod 36, and the fixing rod 36 is fixedly connected between the upper fixing frame 35 and the lower fixing frame 39. Each drill rod body 7 includes at least 4 energy buffer springs 38 in the height direction. If the length of the drill rod body 7 increases, several groups of energy buffer springs 38 can be appropriately added in the height direction, and each group of energy buffer springs 38 is evenly distributed with four in the circumference of the drill rod body 7. When the drill rod body 7 suddenly breaks, the energy buffer spring 38 of the drill rod body 7 can absorb the impact energy generated by the fracture, thereby effectively reducing the safety risk caused by its sudden failure process.

[0052] Two energy buffer springs 38 are sleeved on each fixing rod 36, and a force sensor 37 is installed between the two energy buffer springs 38. When the drill rod body 7 breaks, the force on the force sensor 37 will be significantly increased, and transmitted to the deformation and force sensor data acquisition device 23 through the buffer spring fixing device data line 1, and then transmitted to the deformation and force threshold value judgement device 21 through the deformation and force threshold value judgement device 21 data line. When it exceeds the allowable force value, the red light 4 and the yellow light 5 of the trigger warning light group flash alternately, reminding the operator that the drill rod body 7 has broken and failed, and reminding and warning the failure. In this embodiment, the energy buffer spring fixing device is provided with multiple groups, namely, energy buffer spring fixing device 1 8, energy buffer spring fixing device 2 10, energy buffer spring fixing device 3 12, energy buffer spring fixing device 4 15, energy buffer spring fixing device 5 16 and energy buffer spring fixing device 6 17, so as to install and fix multiple energy buffer springs 38.

[0053] Working process: The drilling rig will be subjected to various impact loads during operation. Under the action of the impact load, the drill pipe body 7 will be deformed by the load, thereby causing the axial deformation sensor 1 24, the axial deformation sensor 25, the axial deformation sensor 3 26, the axial deformation sensor 4 27, the annular deformation sensor 4 28, the annular deformation sensor 3 29, the annular deformation sensor 2 30, and the annular deformation sensor 1 31 to deform and produce resistance changes. The deformation is transmitted to the deformation and force sensor data acquisition device 23 through the deformation sensor data line 2, so as to obtain the annular and axial deformation of the drilling rig drill pipe body 7 at different positions and angles, and the deformation distribution is calculated through the deformation and force sensor data acquisition device 23 to identify and locate the deformation position of the drill pipe body 7. According to the distribution law of deformation, the failure form of the drill pipe body 7 is predicted, that is, when the axial deformation is too large, it is judged as a failure caused by excessive axial impact load, and when the annular deformation is too large, it is judged as a failure caused by excessive bending impact load.

[0054] The deformation and force threshold judger 21 judges the deformation degree of the drill pipe body 7 identified by the deformation and force sensor data acquisition device 23. When the axial and circumferential deformation sensors are both within the safe deformation range (the safe deformation range is determined according to the yield deformation of the drill pipe body 7 material), the green light 6 of the warning light group is lit; when the axial deformation sensor exceeds the safe deformation range, the yellow light 5 of the warning light group is triggered to be always on, reminding the operator to pay attention to the safe operation of the drill pipe body 7; when the axial deformation sensor exceeds the allowable deformation (the allowable deformation range is determined according to 80% of the fracture deformation of the drill pipe body 7 material), the red light 4 of the warning light group is triggered to be always on, reminding the operator to pay attention to the fracture failure of the drill pipe body 7, and reminding the operator to reduce the axial impact load; when the circumferential deformation sensors 28-31 exceed the allowable deformation (the allowable deformation range is determined according to 80% of the fracture deformation of the drill pipe body 7 material), the red light 4 of the warning light group is triggered to flash, reminding the operator to pay attention to the fracture failure of the drill pipe body 7, and reminding the operator to reduce the bending moment impact load.

[0055] When the drilling rig is subjected to sudden overload during operation, causing the drill rod body 7 to suddenly break, the drill rod energy buffer spring 38 connected to the drill rod absorbs the impact energy generated by the break of the drill rod body 7, thereby effectively reducing the safety risk caused by its sudden failure process. At the same time, the force on the force sensor 37 will be significantly increased, and transmitted to the deformation and force sensor data acquisition device 23 through the energy buffer spring fixing device data line 1, and then transmitted to the deformation and force threshold judgement device 21 through the deformation and force threshold judgement device data line 22, triggering the red light 4 and the yellow light 5 to flash alternately, reminding and warning of the failure.

[0056] The present invention overcomes the deficiency that the traditional drilling rig drill rod cannot obtain the deformation state of each position of the drill rod, solves the difficulty that the traditional drilling rig drill rod cannot give early warning of safety risks, and solves the problem that the traditional drilling rig drill rod lacks safety protection devices. An innovatively designed intelligent drilling rig drill rod deformation perception detection and early warning system can not only obtain the deformation state of the drilling rig drill rod at different positions and angles in real time, but also give early warning of the operating state of the drill rod, and can also absorb the impact energy generated by the sudden break of the drill rod through the drill rod energy buffer spring, thereby providing monitoring, early warning and protection functions for the drill rod.

[0057] Embodiment 2:

[0058] Reference Figure 6 and Figure 7, which is different from the embodiment 1, a limit rod 45 is provided in the drill rod body 7, a stop rod is fixedly connected to the bottom of the limit rod 45, a stop groove 141 for inserting the stop rod is provided in the drill bit 14, a first fixing hole 142 is provided on the side wall of the drill bit 14 along its radial direction, and a second fixing hole 411 is provided on the stop rod, so that the limit rod 45 is fixedly connected to the drill rod body 7 by bolts, thereby facilitating the strengthening of the overall strength of the drill bit 14 and the drill rod body 7. The limit rod 45 has a lower strength than the drill rod body 7 and the drill bit 14, but has a higher toughness than the drill rod body 7 and the drill bit 14, and the limit rod 45 is integrally formed with the stop rod, so that when the drill bit 14 is broken, the limit rod 45 can still maintain connection with the drill bit 14 through the stop rod, thereby facilitating the removal of the broken drill bit 14 when the drill rod is removed, thereby reducing the possibility that the broken drill bit 14 is trapped in the hole and affects the subsequent drilling. The top of the limiting rod 45 is fixedly connected to the limiting plate 42, and the limiting plate 42 is fixedly connected to the top of the drill rod body 7 by bolts.

[0059] The drill rod body 7 is provided with a reinforcing rod 43 along its radial direction. Two side walls along its radial direction are provided with countersunk holes 71 for installing the reinforcing rod 43. One end of the reinforcing rod 43 passes through the two countersunk holes 71 and the limiting rod 45, and is threadedly connected with a locking bolt 432. The end of the locking bolt 432 abuts against the step surface of one countersunk hole 71. The end of the reinforcing rod 43 away from the locking bolt 432 is fixedly connected with a locking head 431. The locking head 431 abuts against the step surface of the other countersunk hole 71, and then cooperates with the locking bolt 432 to fix the reinforcing rod 43 to the drill rod body 7. Two groups of reinforcing rods 43 are provided, and the two groups of reinforcing rods 43 are perpendicular to each other and staggered along the height direction of the drill rod, so as to further strengthen the drill rod body 7 and improve the ability of the drill rod body 7 to resist axial and annular deformation.

[0060] It should be noted that the ends of the locking head 431 and the locking bolt 432 are both sunk into the countersunk hole 71 .

[0061] Each group of reinforcing rods 43 has a plurality of axial arrays along the drill pipe body 7. The reinforcing rods 43 are provided with mounting grooves 434. Axial deformation sensors 436 are installed in the mounting grooves 434. The positions of the axial deformation sensors 436 of the reinforcing rods 43 of the same group are the same, so that the axial deformation of the drill pipe body 7 can be monitored by monitoring the positions of the reinforcing rods 43. This method is more accurate and has higher precision.

[0062] The reinforcing rod 43 is connected by the locking bolt 432, which is not only reliable but also easy to disassemble, thereby facilitating the inspection or maintenance of the axial deformation sensor 5 436. At the same time, the reinforcing rod 43 cooperates with the limiting rod 45 to strengthen the overall strength of the drill pipe body 7.

[0063] Embodiment 3:

[0064] Reference Figure 8 , which is different from Example 1 in that a honeycomb reinforcement plate 44 is fixedly connected to the drill rod body 7 by bolts, and a sidewall of the honeycomb reinforcement plate 44 is provided with an avoidance groove 441 for avoiding the fixing device of the energy buffer spring 38. There are a plurality of honeycomb reinforcement plates 44 arranged in an axial array along the drill rod body 7, and an axial deformation sensor 6 442 is installed on each honeycomb reinforcement plate 44, so as to monitor the axial deformation of the drill rod body 7 by monitoring the position of the honeycomb reinforcement plate 44.

[0065] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An intelligent drilling rig drill pipe deformation sensing detection and early warning system, characterized in that: include Drill pipe body (7); A drill pipe axial and annular deformation sensing system, wherein the drill pipe axial and annular deformation sensing system is arranged in the drill pipe body (7) to monitor the deformation of the drill pipe body (7); A drill pipe operation early warning system, the drill pipe operation early warning system being electrically connected to the drill pipe axial and circumferential deformation sensing system to receive the circumferential and axial deformation conditions of the drill pipe body (7) and to evaluate the safety conditions of the drill pipe body (7), and to issue an early warning when there are safety hazards in the drill pipe body (7); A drill rod safety protection system, the drill rod safety protection system being connected to the drill rod body (7) so as to cushion the drill rod body (7) when the drill rod body (7) breaks; A limiting rod (45) is provided inside the drill rod body (7), and a reinforcing rod (43) is also provided along the radial direction of the drill rod body (7). Countersunk holes (71) for installing the reinforcing rod (43) are provided on two side walls along the radial direction of the drill rod body (7). One end of the reinforcing rod (43) passes through the two countersunk holes (71) and the limiting rod (45), and is threadedly connected with a locking bolt (432). The end of the locking bolt (432) abuts against the step surface of one countersunk hole (71). The end of the reinforcing rod (43) away from the locking bolt (432) is fixedly connected with a locking head (431). The locking head (431) abuts against the step surface of the other countersunk hole (71), and then cooperates with the locking bolt (432) to fix the reinforcing rod (43) to the drill rod body (7). The reinforcing rod (43) is provided with two groups, and the two groups of reinforcing rods (43) are perpendicular to each other and staggered along the height direction of the drill rod. Each group of reinforcing rods (43) has a plurality of reinforcing rods (43) arranged in an axial array along the drill pipe body (7). The reinforcing rods (43) are provided with mounting grooves (434), and axial deformation sensors (436) are installed in the mounting grooves (434). The positions of the axial deformation sensors (436) of the reinforcing rods (43) in the same group are the same, so that the axial deformation of the drill pipe body (7) can be monitored by monitoring the positions of the reinforcing rods (43).

2. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 1, characterized in that: The drill pipe axial and circumferential deformation sensing system comprises a plurality of axial deformation sensors, a plurality of circumferential deformation sensors, a deformation sensor data line (2), and a deformation and force sensor data acquisition device (23); A plurality of the axial deformation sensors and a plurality of the annular deformation sensors are distributed in a matrix form on the inner wall of the drill rod body (7); a plurality of the axial deformation sensors and a plurality of the annular deformation sensors are distributed at different heights of the drill rod body (7); the axial deformation sensors are used to measure the axial deformation of the drill rod body (7) during operation; and the annular deformation sensors are used to measure the annular deformation of the drill rod body (7) during operation.

3. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 2, characterized in that: Each drill rod body (7) is provided with at least four groups of the axial deformation sensors and the circumferential deformation sensors in the height direction, and the length of the drill rod body (7) is proportional to the number of groups of the axial deformation sensors and the circumferential deformation sensors.

4. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 3, characterized in that: A plurality of the axial deformation sensors and a plurality of the circumferential deformation sensors transmit the deformation signal of the drill rod body (7) to the deformation and force sensor data acquisition device (23) through the deformation sensor data line (2), thereby obtaining the deformation conditions of the drill rod body (7) at different positions and angles, and identifying and locating the deformation position of the drill rod body (7) through deformation distribution calculation, and predicting the failure mode of the drill rod body (7) through the deformation distribution law.

5. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 1, characterized in that: The drill rod operation warning system comprises a warning light group, a warning light group data control line, a deformation and force threshold value judgement device (21), a deformation and force threshold value judgement device data line (22), a deformation and force sensor data acquisition device (23) and a warning light group power line port.

6. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 5, characterized in that: The deformation and force threshold value judger (21) is connected to the deformation and force sensor data acquisition device (23), and the green light (6) of the warning light group is turned on when the deformation degree of the drill pipe body (7) at different positions and angles obtained by the deformation and force sensor data acquisition device (23) is within the safe deformation range; When it exceeds the safe deformation range, the yellow light (5) of the triggering warning light group is lit, reminding the operator to pay attention to the safe operation of the drill pipe; When the deformation exceeds the allowable amount, the red light (4) of the triggering warning light group is turned on, reminding the operator to pay attention to the drill pipe being broken and failing.

7. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 6, characterized in that: The warning light group is installed on the top of the drill rod body (7), so that the staff can understand the working status of the drill rod in real time.

8. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 5, characterized in that: The drill rod safety protection system comprises a buffer spring fixing device data line (1), a deformation and force sensor data acquisition device (23), an upper fixing frame (35), a fixing rod (36), a force sensor (37), an energy buffer spring (38) and a lower fixing frame (39).

9. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 8, characterized in that: The energy buffer spring (38) is connected and fixed to the drill rod body (7) via the upper fixing frame (35), the fixing rod (36) and the lower fixing frame (39), and each drill rod body (7) comprises at least four energy buffer springs (38) in the height direction.

10. The intelligent drilling rig drill pipe deformation sensing detection and early warning system according to claim 9, characterized in that: The force sensor (37) is installed in the middle of the energy buffer spring (38). When the drill rod breaks, the force on the force sensor (37) will be significantly increased and transmitted to the deformation and force sensor data acquisition device (23) through the buffer spring fixing device data line (1), and then transmitted to the deformation and force threshold value judgement device (21) through the deformation and force threshold value judgement device data line (22). When the force exceeds the allowable force value, the red light (4) and the yellow light (5) of the warning light group are triggered to flash alternately, reminding the operator that the drill rod body (7) has broken and failed.

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