Drilling device, target information determination method, storage medium and electronic device

Abstract

Embodiments of the present invention provide a drilling device, a method for determining target information, a storage medium, and an electronic device. The device includes: a drilling assembly comprising at least a drill bit and a drill string coaxially connected to the drill bit, wherein the drill string is electrically conductive; a first communication assembly comprising a power supply and at least one set of first communication coils, the first communication coils being located on one end of the drill string near the drill bit; the first communication coils being configured to generate a first current under the action of the power supply, the first current being configured to generate an induced magnetic field to induce a second current on the drill string; and a target receiver configured to receive target data transmitted by the second current through the drill string and determine target information based on the target data. The present invention solves the problem of low drilling efficiency caused by delayed drilling information in the related art, thereby achieving the effect of improving drilling efficiency.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of communications, and in particular, to a drilling device, a method for determining target information, a storage medium, and an electronic device. Background Art

[0002] During directional drilling, drilling tools commonly used include (but are not limited to) drill bits, stabilizers, benders, drill pipes, rotary guides, or turbine motors (mud motors) used to rotate the drill bit. In addition to these drilling tools, a measurement-while-drilling (MWD) system is often required to ensure controllable drilling direction. This system includes several sensors and related instruments, providing the necessary guidance information for safe drilling.

[0003] Due to the complex mechanical structure around the drill bit and the limited installation space, the MWD system is usually placed above the motor assembly. At this time, the ground communication link is usually established with the MWD system as the core, including but not limited to communication links such as wired connection, mud pulse telemetry or electromagnetic wireless transmission.

[0004] However, since the drill bit is far away from the sensor that monitors the drilling progress, there is a lag between the drill bit and the sensor. When the drill bit deviates from the expected direction or malfunctions, the staff often cannot discover it in time, which can easily lead to the failure of the drilling project or the need to re-drill, reducing drilling efficiency. Summary of the Invention

[0005] Embodiments of the present invention provide a drilling device, a method for determining target information, a storage medium, and an electronic device to at least solve the problem of low drilling efficiency caused by delayed drilling information in the related art.

[0006] According to one embodiment of the present invention, there is provided a drilling device, comprising:

[0007] A drilling assembly comprising at least a drill bit and a drill string coaxially connected to the drill bit, wherein the drill string has the ability to conduct electricity;

[0008] A first communication component includes a power supply device and at least one first communication coil, wherein the first communication coil is located at an end of the drill string near the drill bit; the first communication coil is configured to generate a first current under the action of the power supply device, and the first current is configured to generate an induced magnetic field to induce a second current on the drill string, wherein the first current is an alternating current;

[0009] A target receiver is configured to receive target data transmitted by the second current through the drill string, and determine target information based on the target data.

[0010] In an exemplary embodiment, the drill string includes a second communication component, which is arranged at a predetermined position away from the drill bit; the second communication component is used to receive the target data transmitted by the second current through the drill string and transmit the target data to the target receiver.

[0011] In an exemplary embodiment, the first communication coil includes at least one of the following coils:

[0012] Round coil, egg-hole coil, square coil, polygonal coil.

[0013] In an exemplary embodiment, the first communication coil is configured as a square coil, and a first pair of sides of the square coil is parallel to the axis of the drill string.

[0014] In an exemplary embodiment, the angle between the second pair of sides of the square coil and the axis of the drill string is less than 50 degrees.

[0015] In an exemplary embodiment, the drilling assembly also includes a mud motor coaxially connected to the drill bit, wherein the first communication coil with the smallest distance from the drill bit is located between the drilling end of the drill bit and the mud motor, and the drilling end of the drill bit is located at the end of the drill bit away from the mud motor.

[0016] In an exemplary embodiment, the second communication component is located on a side of the mud motor away from the drill bit, and the first communication coil is located on a side of the mud motor away from the second communication component.

[0017] In an exemplary embodiment, the target information includes one of the following:

[0018] The location information of the drill bit, the geological information of the location of the drill bit, and the drilling direction of the drill bit.

[0019] In an exemplary embodiment, the drilling assembly also includes a sensing detection device, wherein the sensing detection device is electrically connected to the corresponding first communication coil; when the sensing detection device detects corresponding data, the sensing detection device triggers the corresponding first communication coil so that the corresponding first communication coil generates a first current under the action of the power supply device.

[0020] According to another embodiment of the present invention, a method for determining target information is provided, which is applied to the aforementioned drilling device, comprising:

[0021] The first communication coil generates a first current under the action of the power supply device, and the first current is used to generate an induced magnetic field to induce a second current on the drill string, wherein the first current is an alternating current;

[0022] The target receiver receives target data transmitted by the second current through the drill string and determines target information based on the target data.

[0023] In an exemplary embodiment, the target receiver receives target data transmitted by the second current through the drill string, and determines target information based on the target data, including:

[0024] The target receiver receives the target data transmitted by the second communication component, wherein the second communication component is used to receive the target data transmitted by the second current through the drill string;

[0025] The target receiver determines the target information based on the target data.

[0026] According to yet another embodiment of the present invention, a storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0027] According to another embodiment of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.

[0028] Through the present invention, since the first communication coil is close to the drill bit, the first communication coil can sense the status of the drill bit in a timely manner, and thus can transmit the status of the drill bit to the target receiver in the form of a second current in a timely manner. Therefore, the problem of low drilling efficiency caused by the lag of drilling information can be solved, thereby achieving the effect of improving drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a structural diagram of a drilling device according to an embodiment of the present invention;

[0030] Figure 2 is a structural diagram of a first communication component according to an embodiment of the present invention;

[0031] Figure 3 is an induced magnetic field diagram of a first communication coil according to an embodiment of the present invention;

[0032] Figure 4 This is an embodiment of a drilling device according to an embodiment of the present invention. Figure 1 ;

[0033] Figure 5 This is an embodiment of a drilling device according to an embodiment of the present invention. Figure 2 ;

[0034] Figure 6 is a flowchart of a method for determining target information according to an embodiment of the present invention. DETAILED DESCRIPTION

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and in combination with embodiments.

[0036] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0037] In this embodiment, a drilling device is provided. Figure 1 is a structural diagram of a drilling device according to an embodiment of the present invention, Figure 2 is a structural diagram of a first communication component according to an embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the device includes:

[0038] The drilling assembly comprises at least a drill bit 1 and a drill string 2 coaxially connected to the drill bit 1, wherein the drill string 2 has the ability to conduct electricity;

[0039] A first communication component includes a power supply and at least one first communication coil 104. The first communication coil 104 is located at one end of the drill string 2 near the drill bit 1. The first communication coil 104 is configured to generate a first current under the action of the power supply. The first current is configured to generate an induced magnetic field to induce a second current on the drill string.

[0040] The target receiver is configured to receive target data transmitted by the second current through the drill string and determine target information based on the target data.

[0041] In this embodiment, if Figure 3As shown, the first communication coil 104 generates a first current under the action of the power supply device. Since the first current is an alternating current, the first current generates a changing induced magnetic field during the transmission along the first communication coil 104, thereby generating a second current on the drill string 2 with conductive ability. Subsequently, when the target receiver receives the target data transmitted by the second current, it can determine the target information based on the target data; wherein, the magnetic field generated by the first coil 104 is shown as the magnetic field line 200; since the first communication coil is close to the drill bit, the second current indirectly generated by the first communication coil can correspond to the current state of the drill bit 1, thereby reducing the information lag between the drill bit 1 and the target receiver, and avoiding the reduction of drilling efficiency due to information lag.

[0042] The target receiver may be (but is not limited to) a signal receiver or other signal receiving device disposed on the ground and used to receive target data.

[0043] In an optional embodiment, the target information includes one of the following:

[0044] The location information of the drill bit 1, the geological information of the location of the drill bit 1, and the drilling direction of the drill bit 1.

[0045] In this embodiment, the target information may also include (but is not limited to) temperature and humidity data, working hours, and other information of the drill bit 1 .

[0046] In an optional embodiment, if Figure 1 As shown, the drill bit assembly also includes: a ground platform 4 located on the ground, a rotary table 3 rotatably connected to the ground platform 4 and driving the drill bit 1 to rotate, a drive motor 5 for providing power to the rotary table 3, a traction tool 6 for driving the drill string 2 to rise and fall, and a shell 7 for protecting the drill string 2, wherein the drill string 2 is located in the shell 7, and the interior of the drill string 2 is hollow; during actual operation, prepared drilling fluid (usually called mud) is pumped downward from the interior of the drill string 2 to assist drilling, and drill cuttings generated during the drilling process are flushed back into the annular space 2a between the outside of the drill string 2 and the shell 7 by the drilling fluid, and are pumped out of the well along the annular space 2a.

[0047] In an optional embodiment, if Figure 2 As shown, the drill bit assembly further includes a drill collar 100 located in the housing 7 and used to protect the drill string 2 . A drill collar cutout 106 is opened on the wall of the drill collar 100 , and the first communication coil 104 is located in the drill collar cutout 106 .

[0048] In an optional embodiment, the first communication coil 104 (wherein a plurality of the first communication coils 104 constitute a communication coil assembly 108) includes at least one of the following coils:

[0049] Round coil, egg-hole coil, square coil, polygonal coil.

[0050] In this embodiment, the first communication coil 104 is configured to have different shapes in order to adapt to different usage environments and different usage methods, thereby expanding the usage scope of the drilling device.

[0051] The first communication coil 104 can be (but is not limited to) a ferrite or ferromagnetic core. When the first communication coil 104 is a ferrite or ferromagnetic core, the core is covered with insulating material along the length of the first communication coil 104 to protect the core and prevent mud and water from entering the drill collar cutout 106 and damaging the core. Furthermore, the first communication coil 104 can also be partially composed of an insulating material with a low resistance, such as a resistivity greater than 10 ohms, 100 ohms, 1000 ohms, or 1015 ohms; the first communication coil 104 can also be composed entirely of insulating material.

[0052] It should be noted that the excitation frequency range of the first communication coil 104 varies from 10 Hz to 100 kHz, or from 100 Hz to 10 kHz, or from 400 Hz to 4 kHz. The induced magnetic field generated by the first communication coil 104 is formed by an inductor (typically a wire coil) disposed on or around the drill string 2. In this case, an iron core made of a high-permeability material such as ferrite or ferromagnetic material can increase the magnetic flux generated by the inductor and the effective area of ​​the inductor. In this process, the ferrite or ferromagnetic material acts as a conduit for the induced magnetic field.

[0053] In an optional embodiment, if Figure 2 As shown, the first communication coil 104 is configured as a square coil, and a first pair of sides of the square coil is parallel to the axis of the drill string 2 .

[0054] In this embodiment, the square coil includes a first coil side 110 and a second coil side 112, and the length of the first coil side 110 can be much greater than the length of the second coil side 112. The ratio of the length of the first coil side 110 to the second coil side can be (but is not limited to) 1:1, 1000:1, 10:1, 100:1, 20:1, 200:1; when the side length of the first coil side 110 exceeds the length of the second coil side 112, the first communication coil 104 is an elongated rectangle. In this state, the area of ​​the first communication coil 104 in the drill collar cut 106 is greater than the area of ​​the first communication coil 104 when the length of the first coil side 110 is less than or equal to the second coil side 112.

[0055] In an optional embodiment, the first communication coil 104 can be used to detect a second current on the drill string 2. The second current on the drill string 2 generates an alternating magnetic field in the first communication coil 104, so that a voltage is generated at both ends of the first communication coil 104. At this time, it is only necessary to detect the voltage to determine the state of the second current. At this time, one end of the first communication coil 104 can be connected to the drill string 2 or a sensor package set on the inner wall of the drill string 2, and the sensor package is used to detect the state of the second current.

[0056] In an optional embodiment, the angle between the second pair of sides of the square coil and the axis of the drill string is less than 50 degrees.

[0057] In an optional embodiment, the drill string 2 includes a second communication component, which is arranged at a predetermined position away from the drill bit 2; the second communication component is used to receive target data transmitted by the second current through the drill string 2 and transmit the target data to the target receiver.

[0058] In this embodiment, a second communication component is provided to receive the second current, and the target data transmitted by the second current is transmitted in the form of a magnetic signal, thereby improving signal transmission efficiency and reducing loss during signal transmission.

[0059] Among them, Figure 4 As shown, the second communication component 570 includes (but is not limited to) a mud pulse receiver connected to the target receiver for communication and at least one of the following: a gap electrode, a band electrode, a loop antenna or a second communication coil, an insulating gap electrode; wherein the insulating gap electrode can be used as the upper electrical contact of a short-hop communication link, and as the lower end of a surface link, wherein the surface communication link can be completed by a mud pulse type, and the upper electrical contact of the short-hop communication link can also be a loop antenna, a band electrode or a second communication coil, at this time, the first communication coil can be used as part of a multi-point communication network, in which each node in the system uses a transceiver.

[0060] It should be noted that when oil-based mud is used, the first communication coil 104 can be used as a transmitter, and the receiver is any one of the loop antenna, the insulating gap electrode or the second communication coil in the second communication component.

[0061] In an optional embodiment, if Figure 4 As shown, the drilling assembly also includes a mud motor 540 coaxially connected to the drill bit 2, wherein the first communication coil 104 with the smallest distance from the drill bit 2 is located between the drilling end of the drill bit 2 and the mud motor 540, and the drilling end of the drill bit 2 is located at the end of the drill bit 2 away from the mud motor 540.

[0062] In an optional embodiment, the second communication component is located on a side of the mud motor 540 away from the drill bit 1 , and the first communication coil 104 is located on a side of the mud motor 540 away from the second communication component.

[0063] In an optional embodiment, the drilling assembly also includes a drill bit box 520, a near-drill bit 530, and a connector 550 connected to the drill bit 1, wherein the connector 550 may include (but is not limited to) a mud pulse generator, an MWD sensor, a ground electric field transmitter and its control connector 560 are located on the side of the second communication component 570 in the No. 2 drill string close to the drill bit 1, wherein 401 can be a connecting component for connecting the second communication component 570 and the No. 2 drill string.

[0064] In an optional embodiment, the drilling assembly also includes a sensing detection device, wherein the sensing detection device is electrically connected to the corresponding first communication coil 104; when the sensing detection device detects corresponding data, the sensing detection device triggers the corresponding first communication coil 104, so that the corresponding first communication coil generates a first current under the action of the power supply device.

[0065] In this embodiment, if Figure 5 As shown, the sensing detection device 800 includes (but is not limited to) an MWD system 801, a formation resistivity sensor 802, a rotary steering device 803, and a near-position sensor 804, wherein the near-position sensor 804 can be (but is not limited to) a natural gamma ray sensor, an inclinometer, or other sensors used for borehole logging and geosteering. Figure 5 Among them, 806 is the drill bit.

[0066] In this embodiment, a method for determining target information applied to the aforementioned drilling device is provided. Figure 6 is a flow chart of a method for determining target information according to an embodiment of the present invention. Figure 6 As shown, the process includes the following steps:

[0067] Step S602: The first communication coil 104 generates a first current under the action of the power supply device, and the first current is used to generate an induced magnetic field to induce a second current on the drill string 2;

[0068] In step S604, the target receiver receives the target data transmitted by the second current through the drill string 2, and determines target information based on the target data.

[0069] In an optional embodiment, the target receiver receives target data transmitted by the second current through the drill string 2, and determines target information based on the target data, including:

[0070] Step S606: The target receiver receives the target data transmitted by the second communication component, wherein the second communication component is used to receive the target data transmitted by the second current through the drill string;

[0071] Step S608: The target receiver determines target information based on the target data.

[0072] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0073] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of any of the above method embodiments.

[0074] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0075] An embodiment of the present invention further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0076] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0077] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0078] Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device, can be centralized on a single computing device, or can be distributed across a network of multiple computing devices. They can be implemented using program code executable by the computing device, and thus, can be stored in a storage device and executed by the computing device. In some cases, the steps shown or described herein can be performed in a different order than that shown, or can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0079] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A drilling device, characterized in that: include: A drilling assembly comprising at least a drill bit and a drill string coaxially connected to the drill bit, wherein the drill string has the ability to conduct electricity; A first communication component includes a power supply device and at least one first communication coil, wherein the first communication coil is located at an end of the drill string near the drill bit; the first communication coil is configured to generate a first current under the action of the power supply device, and the first current is configured to generate an induced magnetic field to induce a second current on the drill string, wherein the first current is an alternating current; a target receiver for receiving target data transmitted by the second current through the drill string and determining target information based on the target data; The drilling assembly further includes a sensing detection device, wherein the sensing detection device is electrically connected to the corresponding first communication coil; when the sensing detection device detects corresponding data, the sensing detection device triggers the corresponding first communication coil, so that the corresponding first communication coil generates a first current under the action of the power supply device; The drilling assembly also includes a drill bit box, a near-drill bit, a mud motor and a joint, wherein the drill bit, the drill bit box, the near-drill bit, the mud motor and the joint are connected in sequence, the mud motor is coaxially connected to the drill bit, the joint includes a mud pulse generator and an MWD sensor, the second communication component included in the drill string is provided with a ground electric field transmitter and a control joint on the side close to the drill bit, and the second communication component is connected to the drill string through a connecting component.

2. The device according to claim 1, characterized in that The first communication coil includes at least one of the following coils: Round coil, egg-hole coil, square coil, polygonal coil.

3. The device according to claim 2, characterized in that The first communication coil is configured as a square coil, and a first pair of sides of the square coil is parallel to the axis of the drill string.

4. The device according to claim 3, characterized in that The included angle between the second pair of sides of the square coil and the axis of the drill string is less than 50 degrees.

5. The device according to claim 1, characterized in that The drill string includes a second communication component, which is arranged at a predetermined position away from the drill bit; the second communication component is used to receive the target data transmitted by the second current through the drill string and transmit the target data to the target receiver.

6. The device according to claim 5, characterized in that The first communication coil having the smallest distance from the drill bit is located between the drilling end of the drill bit and the mud motor. The drilling end of the drill bit is located at an end of the drill bit away from the mud motor.

7. The device according to claim 6, characterized in that The second communication component is located on a side of the mud motor away from the drill bit, and the first communication coil is located on a side of the mud motor away from the second communication component.

8. The device according to claim 1, characterized in that The target information includes one of the following: The location information of the drill bit, the geological information of the location of the drill bit, and the drilling direction of the drill bit.

9. A method for determining target information, characterized in that: The drilling device according to any one of claims 1 to 8 comprises: The first communication coil generates a first current under the action of the power supply device, and the first current is used to generate an induced magnetic field to induce a second current on the drill string; The target receiver receives target data transmitted by the second current through the drill string and determines target information based on the target data.

10. The method according to claim 9, characterized in that The target receiver receives target data transmitted by the second current through the drill string, and determines target information based on the target data, including: The target receiver receives the target data transmitted by the second communication component, wherein the second communication component is used to receive the target data transmitted by the second current through the drill string; The target receiver determines the target information based on the target data.

11. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program implements the method described in any one of claims 9 to 10 when executed by a processor.

12. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 9 to 10.

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