PDC drill bit with high-temperature-resistant vibration detection function

Abstract

The utility model discloses a PDC drill bit with a high-temperature-resistant vibration detection function, which comprises a PDC drill bit body and a high-temperature-resistant vibration detection functional component, the high-temperature-resistant vibration detection functional component is mounted in the top end of the PDC drill bit body, and the top of the PDC drill bit body is matched with the high-temperature-resistant vibration detection functional component through threaded connection. The high-temperature-resistant vibration detection function assembly comprises a connecting shell, a connecting layer and a vibration sensor. Installation of the high-temperature-resistant vibration detection functional assembly is achieved through the fixing bolts and the threaded holes, the drill bit has the advantage of being capable of monitoring vibration of the drill bit in real time, in the drilling process, a worker can monitor the stratum hardness in real time and modify drilling parameters in time through the device, and the service life of the drill bit is effectively prolonged; through cooperation of the high-temperature-resistant layer, the reinforcing layer and the waterproof layer, the high-temperature-resistant vibration detection function has the advantages of high-temperature resistance and waterproof functions, so that the influence of the high-temperature and high-pressure environment of the stratum on the detection function assembly is remarkably relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a PDC drill bit with a high temperature resistant vibration detection function. Background Art

[0002] In recent years, with the advancement of oil and gas resource exploration and development technology and the increasing demand for energy in various countries around the world, the exploration field is facing more deep and ultra-deep oil and gas wells. The drill bit is an essential tool in drilling engineering, used for geological exploration, oil and gas extraction, water well drilling, etc. At present, in the selection of downhole drilling tools, PDC drill bits are widely used due to their high wear resistance and few moving parts. When drilling downhole, the drill bit is always subjected to irregular dynamic impacts of different amplitudes and frequencies, resulting in premature failure of PDC cutting teeth and drill bits in difficult-to-drill formations. It can be seen that the vibration of the drill bit during drilling is an important factor that limits the effective function of the drill bit. Therefore, real-time monitoring of the vibration of the drill bit during drilling is conducive to improving the drilling efficiency of the drill bit. At the same time, during the drilling process, high-speed cutting will generate a large amount of cutting heat, and the bottom of the well is mostly a high temperature and high pressure environment, which is not conducive to the monitoring of traditional temperature and pressure sensors. Therefore, it is necessary to provide a PDC drill bit with high temperature vibration detection function to solve the above technical problems. Utility Model Content

[0003] In view of this, the main purpose of the utility model is to provide a PDC drill bit with a high temperature resistant vibration detection function.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A PDC drill bit with a high temperature resistant vibration detection function comprises a PDC drill bit body, a high temperature resistant vibration detection function component is installed inside the top of the PDC drill bit body, the top of the PDC drill bit body is threadedly connected to cooperate with a connecting shell of the high temperature resistant vibration detection function component, the high temperature resistant vibration detection function component comprises a connecting shell, a connecting layer, and a vibration sensor, a blade is welded on the surface of the PDC drill bit body, a PDC tooth is fixedly inlaid on the surface of the blade, and a water outlet channel is provided at the bottom of the PDC drill bit body. In the above scheme, a high temperature resistant vibration detection function component installation groove is provided on one side of the top of the PDC drill bit body, the high temperature resistant vibration detection function component comprises a connecting shell, a connecting layer, and a vibration sensor, a connecting layer and a vibration sensor are installed in the connecting shell, a bolt is provided through the surface of the connecting shell, and a threaded hole is provided inside the high temperature resistant vibration detection function component installation groove at the top of the drill bit body.

[0006] In the above scheme, the connecting shell is installed on the top of the PDC drill bit body, and the connecting shell is installed from top to bottom in the high-temperature resistant vibration detection functional component installation groove on one side of the top of the PDC drill bit body. A vacuum chamber is provided inside the top of the connecting shell, and an outer cavity is provided on the outer periphery of the connecting shell surface for placing the connecting layer, and an inner cavity is provided in the center of the connecting shell surface for placing the vibration sensor.

[0007] In the above scheme, the connecting layer includes a high temperature resistant layer, a strengthening layer and a waterproof layer. The high temperature resistant layer is made of ceramic fiber aerogel material, the strengthening layer is zs-411 thermal insulation coating, and the waterproof layer is made of galvanized steel material.

[0008] In the above solution, the vibration sensor includes a lateral vibration sensor, a longitudinal vibration sensor and an axial vibration sensor, and the vibration sensor is arc-shaped and snap-fitted to the surface of the cavity in the connecting shell.

[0009] Compared with the prior art, the utility model monitors the formation hardness in real time and modifies the drilling parameters in time, effectively improving the service life of the drill bit; through the coordination of the high temperature resistant layer, the strengthening layer and the waterproof layer, the high temperature resistant vibration detection function has the advantages of high temperature resistant and waterproof functions, thereby significantly alleviating the influence of the high temperature and high pressure environment of the formation on the detection function components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to disclose a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0011] Figure 1 A three-dimensional structural schematic diagram of a PDC drill bit with a high temperature resistant vibration detection function is provided for an embodiment of the utility model;

[0012] Figure 2 An exploded diagram of a PDC drill bit with a high temperature resistant vibration detection function is provided for an embodiment of the utility model;

[0013] Figure 3 A schematic diagram of the partial structure of a PDC drill bit of a PDC drill bit with a high temperature resistant vibration detection function is provided for an embodiment of the utility model;

[0014] Figure 4 A schematic diagram of the structure of a connection layer in a PDC drill bit with a high temperature resistant vibration detection function is provided for an embodiment of the utility model;

[0015] Figure 5 A cross-sectional view of a connecting shell in a PDC drill bit with a high temperature resistant vibration detection function is provided for an embodiment of the utility model.

[0016] In the figure: 1. PDC drill bit body; 11. High temperature resistant vibration detection functional component installation slot; 2. Threaded head; 3. High temperature resistant vibration detection functional component; 31. Vibration sensor; 32. Connecting layer; 33. Connecting shell; 321. High temperature resistant layer; 322. Strengthening layer; 323. Waterproof layer; 331. Vacuum chamber; 333. Outer cavity; 332. Inner cavity; 34. Fixing bolt; 4. Blade; 5. PDC tooth; 6. Water outlet channel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of more restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, article or device including the element.

[0020] The present invention provides a PDC drill bit with a high temperature resistant vibration detection function. Figure 1-5 As shown, it includes a PDC drill bit body 1, a high temperature resistant vibration detection functional component 3 is installed inside the top of the PDC drill bit body 1, the top of the PDC drill bit body 1 is matched with a connecting shell 33 of the high temperature resistant vibration detection functional component 3 through a threaded connection, the high temperature resistant vibration detection functional component 33 includes a connecting shell 33, a connecting layer 32, and a vibration sensor 31, a blade wing 4 is welded on the surface of the PDC drill bit body 1, and a PDC tooth 5 is fixedly embedded on the surface of the blade wing 4, and a water outlet channel 6 is opened at the bottom of the PDC drill bit body 1

[0021] like Figure 2 and 3 As shown, a high-temperature vibration detection functional component mounting groove 11 is provided on one side of the top of the PDC drill bit body 1, a connecting layer 32 and a vibration sensor 31 are installed in the connecting shell, a bolt 34 is penetrated through the surface of the connecting shell 33, and a threaded hole is provided inside the high-temperature vibration detection functional component mounting groove 11 at the top of the drill bit body 1. The connecting shell 33 is installed from top to bottom in the high-temperature vibration detection functional component mounting groove 11 on one side of the top of the PDC drill bit body 1, and the vibration sensor 31 includes a lateral vibration sensor, a longitudinal vibration sensor and an axial vibration sensor, and the vibration sensor is arc-shaped and snap-fitted to the surface of the cavity 332 in the connecting shell.

[0022] like Figure 4 As shown, the connecting layer 32 includes a high temperature resistant layer 321, a strengthening layer 322 and a waterproof layer 323. The high temperature resistant layer 321 is made of ceramic fiber aerogel material, the strengthening layer 322 is zs-411 thermal insulation coating, and the waterproof layer 323 is made of galvanized steel material.

[0023] like Figure 5 As shown, a vacuum cavity 331 is provided inside the top of the connection shell 33 , an outer cavity 333 is provided on the outer periphery of the surface of the connection shell 33 for placing the connection layer 32 , and an inner cavity 332 is provided in the center of the surface of the connection shell for placing the vibration sensor 31 .

[0024] The working process of this utility model:

[0025] When in use, the connecting layer 32 is placed in the outer cavity 333 of the connecting shell 33, the vibration sensor 31 is placed in the inner cavity 332 of the connecting shell 33, and the high temperature resistant vibration detection functional component 3 is fixed to the PDC drill bit body 1 with bolts 34. When the PDC drill bit body 1 is drilling, the vibration of the PDC drill bit body 1 is monitored by the vibration sensor 31. When the vibration of the PDC drill bit body 1 is detected to be abnormal, the vibration sensor 31 sends a vibration signal to the controller, so that the staff can know and stop in time. During drilling, the device can monitor the formation hardness in real time and modify the drilling parameters in time, so that the PDC drill bit body 1 can be adjusted to effectively improve the service life of the drill bit. The high temperature resistant layer 321, the strengthening layer 322 and the vacuum chamber 331 above the connecting layer 32 can ensure that the vibration sensor 31 will not be affected by high temperature. The waterproof layer 323 can improve the waterproofness of the PDC vibration sensor 31, so that the high temperature resistant vibration detection function has the advantages of high temperature resistant and waterproof functions, thereby significantly alleviating the influence of the high temperature and high pressure environment of the formation on the high temperature resistant vibration detection function component 3.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A PDC drill bit with high temperature resistance vibration detection function, comprising a PDC drill bit body (1), characterized in that: A high temperature resistant vibration detection functional component (3) is installed inside the top of the PDC drill bit body (1); the top of the PDC drill bit body (1) is matched with a connecting shell (33) of the high temperature resistant vibration detection functional component (3) through a threaded connection; the high temperature resistant vibration detection functional component (3) comprises a connecting shell (33), a connecting layer (32), and a vibration sensor (31); a blade (4) is welded on the surface of the PDC drill bit body (1); a PDC tooth (5) is fixedly embedded on the surface of the blade (4); and a water outlet channel (6) is opened at the bottom of the PDC drill bit body (1).

2. A PDC drill bit with high temperature resistance and vibration detection function according to claim 1, characterized in that: A high temperature resistant vibration detection functional component installation groove (11) is provided on one side of the top of the PDC drill bit body (1).

3. The PDC drill bit with high temperature resistance and vibration detection function according to claim 1, characterized in that: A connection layer (32) and a vibration sensor (31) are installed in the connection shell (33), a bolt (34) is provided through the surface of the connection shell (33), and a threaded hole is provided inside the high temperature resistant vibration detection functional component installation groove (11) at the top end of the drill body.

4. A PDC drill bit with high temperature resistance vibration detection function according to claim 3, characterized in that: The connecting shell (33) is installed on one side of the top end of the PDC drill bit body (1), and the connecting shell (33) is installed from top to bottom in the high temperature resistant vibration detection functional component installation groove (11) on one side of the top end of the PDC drill bit body (1).

5. The PDC drill bit with high temperature resistance vibration detection function according to claim 4, characterized in that: A vacuum cavity (331) is provided inside the top of the connection shell (33), an outer cavity (333) is provided on the outer periphery of the surface of the connection shell (33) for accommodating the connection layer (32), and an inner cavity (332) is provided at the center of the surface of the connection shell (33) for accommodating the vibration sensor (31).

6. The PDC drill bit with high temperature resistance vibration detection function according to claim 1, characterized in that: The connecting layer (32) comprises a high temperature resistant layer (321), a strengthening layer (322) and a waterproof layer (323); the high temperature resistant layer (321) is made of a ceramic fiber aerogel material, the strengthening layer (322) is a ZS-411 thermal insulation coating, and the waterproof layer (323) is made of a galvanized steel material.

7. The PDC drill bit with high temperature resistance vibration detection function according to claim 1, characterized in that: The vibration sensor (31) comprises a transverse vibration sensor, a longitudinal vibration sensor and an axial vibration sensor, and the vibration sensor (31) is arc-shaped and snap-fitted to the surface of the cavity (332) in the connection shell.

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