A tilt measuring tool and an anti-tilt drill bit

Abstract

This invention proposes a tilt measuring tool, comprising: a cylindrical shell, within which a conductive tube is disposed, the cylindrical shell and the conductive tube being coaxial; an annular slide rail circumferentially disposed on the inner side of the cylindrical shell; a slip ring slidably mounted on the annular slide rail; a spring, one end of which is fixedly connected to the slip ring, and the other end of which is fixedly connected to a weight block; the weight block being a conductor; the weight block being connected to a first pole of a power supply device via an electric wire, and a second pole of the power supply device being connected to a second conductive rod; when the weight block contacts the conductive tube, it connects the power supply device, the controller, and the circuit formed by the weight block and the conductive tube, thereby causing the controller to activate an alarm device to trigger an alarm. This invention achieves tilt detection by intermittent contact between the weight block and the conductive tube, thereby connecting the power supply device and the controller. The controller then transmits information to the alarm device via a wireless or electrical connection, causing the alarm device to sound an alarm.

Description

Technical Field

[0001] This invention belongs to the field of parameter measurement tools, and specifically relates to an tilt measurement tool and an anti-tilt drill bit. Background Technology

[0002] Discovering an oil-bearing block through exploration refers to the process of using specialized equipment and techniques to drill a cylindrical borehole of a certain diameter downwards or to one side at a pre-selected location on the ground, and then drilling to reach the underground oil and gas layer.

[0003] However, during the drilling process, it is necessary to prevent the borehole from tilting. In the existing technology, the drill bit is usually removed after drilling a certain distance and the tilt is detected by equipment. This method will delay the overall drilling schedule. Therefore, a tool that can directly detect whether the drill bit is tilted is needed. Summary of the Invention

[0004] To address the above problems, this invention proposes a tilt measurement tool, comprising:

[0005] A cylindrical shell, with a conductive tube disposed inside the cylindrical shell, the cylindrical shell and the conductive tube being coaxial;

[0006] A ring slide rail is provided circumferentially on the inner side of the cylindrical shell; a slip ring is slidably mounted on the ring slide rail;

[0007] A spring, one end of which is fixedly connected to a slip ring, and the other end of which is fixedly connected to a weight; the weight is a conductor.

[0008] The weight block is connected to the first pole of the power supply device via an electric wire, and the second pole of the power supply device is connected to the second conductive rod; the second conductive rod is connected to the first pole of the controller; the second pole of the controller is connected to the second pole of the conductive tube; the power supply device is fixed to the bottom of the cylindrical shell, and the controller is fixed inside the cylindrical shell;

[0009] An alarm device, wherein the alarm device is wirelessly or electrically connected to the controller;

[0010] When the weight comes into contact with the conductive tube, the power supply equipment, the controller, and the circuit formed by the weight and the conductive tube are connected, thereby enabling the controller to activate the alarm device and trigger an alarm.

[0011] Preferably, it also includes a lower limit plate and an upper limit plate.

[0012] The upper limit plate is fixedly installed inside the cylindrical shell, and the upper limit plate is located above the weight block;

[0013] The lower limit plate is fixedly installed inside the cylindrical shell, and the lower limit plate is located below the weight block;

[0014] The weight block slides between the upper limit plate and the lower limit plate, and the conductive tube is fixedly installed between the upper limit plate and the lower limit plate.

[0015] Preferably, the upper limit plate and the lower limit plate are insulating plates.

[0016] Preferably, it further includes a second insulating block and a third insulating block.

[0017] The second insulating block is fixedly installed above the weight block, and the second insulating block is slidably installed below the upper limit plate;

[0018] The third insulating block is fixedly installed below the weight block, and the third insulating block is slidably installed above the lower limit plate.

[0019] Preferably, an annular groove is provided on the lower limiting plate, and the annular groove is coaxial with the cylindrical shell; the annular width of the annular groove is greater than or equal to the maximum distance the weight block moves radially along the lower limiting plate.

[0020] Preferably, it further includes a first conductive rod, which passes through the annular groove and the third insulating block; one end of the first conductive rod is connected to the weight block, and the other end is connected to one end of an electric wire.

[0021] Preferably, the device further includes a bearing, wherein the inner / outer ring of the bearing is connected to the second pole of the power supply device; the outer / inner ring of the bearing is connected to the second conductive rod; and the inner and outer rings of the bearing are always in a connected state.

[0022] Preferably, it further includes a first insulating block, which is fixedly installed between the slip ring and the spring.

[0023] An anti-tilt drill bit includes a drill bit with a mounting groove located at the head of the drill bit away from its axis; a tilt measuring tool as described above is installed inside the mounting groove.

[0024] A sealing cover is installed on the outside of the mounting groove.

[0025] Preferably, it also includes a sealing gasket, which is installed between the drill bit and the sealing cap.

[0026] Beneficial effects:

[0027] 1. This invention uses intermittent contact between a weight block and a conductive tube to connect the power supply equipment and the controller. The controller then transmits information to the alarm device via wireless or electrical connection, causing the alarm device to sound an alarm and thus detecting tilt.

[0028] 2. During the downward drilling process of the anti-tilting drill bit of the present invention, when the drill bit moves vertically downward, under the action of the centrifugal force generated by the rotation of the drill bit, the weight block inside the drill bit, which was originally in contact with the conductive tube, rotates around the conductive tube and moves away from the conductive tube, so that the weight block is always out of contact with the conductive tube, so that the controller cannot be energized, and thus the controller cannot control the alarm to sound. When the drill bit tilts, under the action of the weight block's gravity, the rotating weight block begins to tilt to one side, so that the weight block can intermittently contact the conductive tube, so that the controller is intermittently energized, and thus the controller intermittently controls the alarm to sound. By checking whether the alarm sounds, it is possible to determine in real time whether the drilling process has tilted without stopping the drilling.

[0029] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an anti-tilting drill bit in an embodiment of the present invention is shown;

[0032] Figure 2 An embodiment of the present invention is shown. Figure 1 A magnified schematic diagram of the structure at point A;

[0033] Figure 3 An embodiment of the present invention is shown. Figure 2 A magnified schematic diagram of the structure at point A1;

[0034] Figure 4 An embodiment of the present invention is shown. Figure 3 A magnified schematic diagram of the structure at point A11.

[0035] In the diagram, 1-screw; 2-sealing cap; 3-sealing gasket; 4-drill bit; 5-insulating cylinder; 6-slip ring; 7-annular slide rail; 8-first insulating block; 9-spring; 10-lower limit plate; 11-annular groove; 12-first conductive rod; 13-wire; 14-power supply equipment; 15-bearing; 17-third insulating block; 18-second conductive rod; 19-conductive tube; 20-controller; 21-second insulating block; 22-weight block; 23-upper limit plate; 24-through hole; 25-wire; 26-mounting groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1 to 4 As shown, Figure 1 A schematic diagram of an anti-tilting drill bit in an embodiment of the present invention is shown; Figure 2 An embodiment of the present invention is shown. Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 An embodiment of the present invention is shown. Figure 2 A magnified schematic diagram of the structure at point A1; Figure 3 An embodiment of the present invention is shown. Figure 3 A partially enlarged structural diagram at point A11. Referring to the above figures, a tilt measuring tool and an anti-tilt drill bit include: a cylindrical shell 5, made of insulating material, with an opening at its upper end; a conductive tube 19 inside the cylindrical shell 5, coaxial with the conductive tube 19; an annular slide rail 7 circumferentially arranged inside the cylindrical shell 5; a slip ring 6 slidably mounted on the annular slide rail 7; a spring 9, one end of which is fixedly connected to the slip ring 6, and the other end of which is fixedly connected to a weight block 22; the weight block 22 is a conductor; the weight block 22 can be spherical, conical, or cubic, etc.

[0038] The weight block 22 is connected to the first pole of the power supply device 14 via the wire 13, and the second pole of the power supply device 14 is connected to the second conductive rod 18; the second conductive rod 18 is connected to the first pole of the controller 20; the second pole of the controller 20 is connected to the second pole of the conductive tube 19; the power supply device 14 is fixed to the bottom of the cylindrical shell 5, and the controller 20 is fixed inside the cylindrical shell 5; the power supply device 14 is a rechargeable battery, a dry cell battery, or other power source.

[0039] The alarm device is wirelessly or electrically connected to the controller 20; the alarm device can be a display screen, a sound system, a buzzer, or a mobile terminal, etc.

[0040] When the weight block 22 comes into contact with the conductive tube 19, the circuit formed by the power supply equipment 14, the controller 20, the weight block 22, and the conductive tube 19 is connected, thereby enabling the controller 20 to activate the alarm device and trigger an alarm.

[0041] In the above embodiments, another optional implementation is that when the controller 20 is fixedly installed above the upper limit plate 23, the power supply device 14 is located below the lower limit plate 10, a through hole 24 is provided on the upper limit plate 23, the conductive tube 19 is electrically connected to the controller 20 through the wire 25, and at the same time the second conductive rod 18 passes through the upper limit plate 23 and is electrically connected to the controller 20 to form a circuit.

[0042] In this embodiment of the invention, a lower limiting plate 10 and an upper limiting plate 23 are also included.

[0043] The upper limit plate 23 is fixedly installed inside the cylindrical shell 5, and the upper limit plate 23 is located above the weight block 22;

[0044] The lower limit plate 10 is fixedly installed inside the cylindrical shell 5, and the lower limit plate 10 is located below the weight block 22;

[0045] The weight block 22 is slidably installed between the upper limit plate 23 and the lower limit plate 10, and the conductive tube 19 is fixedly installed between the upper limit plate 23 and the lower limit plate 10.

[0046] In this invention, the upper limit plate 23 and the lower limit plate 10 are insulating plates. Specifically, the upper limit plate 23 and the lower limit plate 10 are made of insulating material, or an insulating coating is applied to the upper limit plate 23 and the lower limit plate 10 in the direction close to the weight block 22; or an insulating coating is applied to the entire surface of the upper limit plate 23 and the lower limit plate 10.

[0047] Please refer to Figure 2 and Figure 3 , Figure 2 An embodiment of the present invention is shown. Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 An embodiment of the present invention is shown. Figure 2 The diagram shows a partially enlarged view of the structure at point A1; it also includes a second insulating block 21 and a third insulating block 17. The second insulating block 21 is fixedly installed above the weight block 22 and is slidably installed below the upper limit plate 23; the third insulating block 17 is fixedly installed below the weight block 22 and is slidably installed above the lower limit plate 10.

[0048] In this invention, an annular groove 11 is provided on the lower limiting plate 10, and the annular groove 11 is coaxial with the cylindrical shell 5. The annular groove 11 is used for the movement of the first conductive rod 12; the width of the annular groove is greater than or equal to the maximum distance that the weight block 22 can move radially along the lower limiting plate 10. Due to the centrifugal force generated, the weight block 22 overcomes the elastic force of the spring 9 and moves towards the annular slide rail 7. The position where the weight block 22 can move closest to the annular slide rail 7 is the first point, and the contact point between the weight block 22 and the conductive tube 19 is the second point. The distance between the first point and the second point is the maximum distance that the weight block 22 can move radially along the lower limiting plate 10.

[0049] It also includes a first conductive rod 12, which passes through the annular groove 11 and the third insulating block 17; one end of the first conductive rod 12 is connected to the weight block 22, and the other end is connected to one end of the wire 13.

[0050] It also includes a bearing 15, the inner / outer ring of which is connected to the second pole of the power supply device 14; the outer / inner ring of the bearing 15 is connected to the second conductive rod 18; the inner and outer rings of the bearing 15 are always connected, and the connection through the bearing ensures that the circuit is always connected during rotation, preventing the circuit from twisting and knotting, causing the circuit to break and disconnect.

[0051] It also includes a first insulating block 8, which is fixedly installed between the slip ring 6 and the spring 9. The first insulating block 8 serves as an insulator.

[0052] In the above embodiment, another optional implementation is that the weight block 22 is a sphere. The sphere, which was originally in contact with the conductive tube 19 under the action of the spring force 9, begins to rotate around the conductive tube 19. The centrifugal force overcomes the spring force 9 and moves the sphere away from the conductive tube 19, so that the sphere and the conductive tube 19 are always out of contact. At this time, the circuit composed of the power supply device 14, wire 13, conductive rod 12, sphere, conductive tube 19, wire 25, controller 20, second conductive rod 18 and bearing 15 is disconnected, thereby preventing the controller 20 from controlling the alarm device to issue an alarm.

[0053] When the bound object tilts, under the action of the ball's gravity, it overcomes the centrifugal force, causing the weight block 22 to intermittently contact the conductive tube 19. This intermittently connects the circuit composed of the power supply device 14, wire 13, conductive rod 12, ball, conductive tube 19, wire 25, controller 20, second conductive rod 18, and bearing 15. Consequently, the controller 20 controls the alarm device to issue an intermittent alarm, thus achieving the function of measuring tilt.

[0054] Working principle of tilt measuring tools:

[0055] When using this tool, it needs to be fixed to an object that rotates along its own axis, while aligning the axis of the cylindrical shell 5 with the axis of the object; the object drives the measuring tool to rotate.

[0056] The weight 22, which was originally in contact with the conductive tube 19 under the elastic force of the spring 9, begins to rotate around the conductive tube 19. The centrifugal force overcomes the elastic force of the spring 9, causing the weight 22 to move away from the conductive tube 19, thus keeping the weight 22 out of contact with the conductive tube 19. At this time, the circuit consisting of the power supply equipment 14, wire 13, conductive rod 12, weight 22, conductive tube 19, wire 25, controller 20, second conductive rod 18, and bearing 15 is broken, thereby preventing the controller 20 from controlling the alarm device to sound an alarm.

[0057] When the bound object tilts, under the action of the weight block 22, it overcomes the centrifugal force, causing the weight block 22 to intermittently contact the conductive tube 19. This causes the circuit composed of the power supply device 14, wire 13, conductive rod 12, weight block 22, conductive tube 19, wire 25, controller 20, second conductive rod 18, and bearing 15 to be intermittently connected. Consequently, the controller 20 controls the alarm device to issue an intermittent alarm, thus achieving the function of measuring tilt.

[0058] In the above embodiments, another optional implementation is an anti-tilt drill bit, comprising a drill bit 4, a mounting groove 26 on the drill bit 4, the mounting groove 26 being located away from the head of the drill bit 4 and at the axial position of the drill bit 4; a tilt measuring tool as claimed in any one of claims 1-8 is installed inside the mounting groove 26; and a sealing cover 2 is installed outside the mounting groove 26. It also includes a sealing gasket 3, which is installed between the drill bit 4 and the sealing cover 2.

[0059] The drill bit 4, sealing cap 2, and sealing gasket 3 are fixed by screw 1. Screw 1 is threaded into the threaded hole of drill bit 4, thereby fixing sealing cap 2 and sealing gasket 3.

[0060] Working principle of anti-tilt drill bit:

[0061] When the rotary head is installed on the drive unit, and the drive unit drives the drill bit 4 to drill downwards, when the drill bit 4 moves vertically downwards, under the action of the centrifugal force generated by the rotation of the drill bit 4, the weight block 22 inside the drill bit 4, which was originally in contact with the conductive tube 19 under the action of the elastic force of the spring 9, begins to rotate around the conductive tube 19. The centrifugal force overcomes the elastic force of the spring 9 and causes the weight block 22 to move away from the conductive tube 19, so that the weight block 22 is always out of contact with the conductive tube 19. At this time, the circuit composed of the power supply equipment 14, wire 13, conductive rod 12, weight block 22, conductive tube 19, wire 25, controller 20, second conductive rod 18 and bearing 15 is disconnected, thereby preventing the controller 20 from controlling the alarm device to issue an alarm.

[0062] When the drill bit 4 tilts, under the action of the weight block 22, it overcomes the centrifugal force and causes the weight block 22 to intermittently contact the conductive tube 19. This causes the circuit composed of the power supply equipment 14, wire 13, conductive rod 12, weight block 22, conductive tube 19, wire 25, controller 20, second conductive rod 18 and bearing 15 to be intermittently connected. The controller 20 then controls the alarm device to issue an intermittent alarm. By checking whether the alarm device alarms, it is possible to determine in real time whether tilting has occurred during the drilling process without stopping the drilling.

[0063] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tilt measuring tool, characterized in that, include: A cylindrical shell (5) is provided inside the cylindrical shell (5), and the cylindrical shell (5) and the conductive tube (19) are coaxial; An annular slide rail (7) is provided circumferentially on the inner side of the cylindrical shell (5); a slip ring (6) is slidably installed on the annular slide rail (7); A spring (9) is fixedly connected at one end to a slip ring (6) and at the other end to a weight block (22); the weight block (22) is a conductor. The weight block (22) is connected to the first pole of the power supply device (14) via the wire (13), and the second pole of the power supply device (14) is connected to the second conductive rod (18); the second conductive rod (18) is connected to the first pole of the controller (20); the second pole of the controller (20) is connected to the second pole of the conductive tube (19); the power supply device (14) is fixed to the bottom of the cylindrical shell (5), and the controller (20) is fixed inside the cylindrical shell (5); An alarm device, which is wirelessly or electrically connected to the controller (20); When the weight block (22) comes into contact with the conductive tube (19), the power supply equipment (14), the controller (20), and the circuit formed by the weight block (22) and the conductive tube (19) are connected, thereby enabling the controller (20) to connect the alarm device to realize the alarm.

2. The tilt measuring tool according to claim 1, characterized in that, It also includes a lower limit plate (10) and an upper limit plate (23). The upper limit plate (23) is fixedly installed inside the cylindrical shell (5), and the upper limit plate (23) is located above the weight block (22); The lower limit plate (10) is fixedly installed inside the cylindrical shell (5), and the lower limit plate (10) is located below the weight block (22); The weight block (22) slides between the upper limit plate (23) and the lower limit plate (10), and the conductive tube (19) is fixedly installed between the upper limit plate (23) and the lower limit plate (10).

3. The tilt measuring tool according to claim 2, characterized in that, The upper limit plate (23) and the lower limit plate (10) are insulating plates.

4. The tilt measuring tool according to claim 3, characterized in that, It also includes a second insulating block (21) and a third insulating block (17). The second insulating block (21) is fixedly installed above the weight block (22), and the second insulating block (21) is slidably installed below the upper limit plate (23); The third insulating block (17) is fixedly installed below the weight block (22), and the third insulating block (17) is slidably installed above the lower limit plate (10).

5. A tilt measuring tool according to claim 2 or 4, characterized in that, An annular groove (11) is provided on the lower limiting plate (10), and the annular groove (11) is coaxial with the cylindrical shell (5); the annular width of the annular groove is greater than or equal to the maximum distance that the weight block (22) moves radially along the lower limiting plate (10).

6. The tilt measuring tool according to claim 5, characterized in that, It also includes a first conductive rod (12), which passes through the annular groove (11) and the third insulating block (17); one end of the first conductive rod (12) is connected to the weight block (22), and the other end is connected to one end of the wire (13).

7. The tilt measuring tool according to claim 1, characterized in that, It also includes a bearing (15), the inner / outer ring of which is connected to the second pole of the power supply device (14); the outer / inner ring of which is connected to the second conductive rod (18); the inner and outer rings of which are always connected.

8. A tilt measuring tool according to claim 1, characterized in that, It also includes a first insulating block (8), which is fixedly installed between the slip ring (6) and the spring (9).

9. An anti-tilting drill bit, characterized in that, Includes a drill bit (4), on which a mounting groove (26) is provided, and the mounting groove (26) is located away from the head of the drill bit (4) and at the axial position of the drill bit (4); an inclination measuring tool as described in any one of claims 1-8 is installed inside the mounting groove (26); A sealing cap (2) is installed on the outside of the mounting groove (26).

10. An anti-tilting drill bit according to claim 9, characterized in that, It also includes a sealing gasket (3), which is installed between the drill bit (4) and the sealing cap (2).

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