While-drilling electromagnetic wave easy-transmission logging device

Abstract

The utility model relates to a while-drilling electromagnetic wave easy transmission logging device which comprises a logging mechanism, two connectors and a drill bit, the logging mechanism comprises a shell, a microcontroller, a coil assembly and a transmitting controller, and the microcontroller, the coil assembly and the transmitting controller are installed in the shell. The microcontroller is respectively connected with the coil assembly and the emission controller, the coil assembly is connected with the emission controller, and the shell is provided with a coil hole at the coil assembly; the two connectors are connected with the two sides of the well logging mechanism respectively. The drill bit is connected with one connector and used for well drilling. According to the technical scheme, the coil hole is formed in the shell of the logging mechanism, especially at the coil assembly, electromagnetic waves can transmit the shell through the coil hole, and therefore the transmitting energy and the receiving energy of the electromagnetic waves are improved, the detection depth is increased, and meanwhile the logging accuracy of the while-drilling electromagnetic wave easily-transmitting logging device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of logging while drilling, and particularly relates to a logging device for easily transmitting electromagnetic waves while drilling. Background Art

[0002] Logging while drilling in the petroleum industry generally refers to measuring the physical parameters of formation rocks during the drilling process and sending the measurement results to the ground for processing in real time using a data telemetry system.

[0003] Since the logging device for electromagnetic waves while drilling must have properties such as sealing, wear resistance, torsion resistance, and tensile resistance, the outer shell of the logging device for electromagnetic waves while drilling generally selects metal materials. However, metal materials will shield electromagnetic waves. Also, since electromagnetic waves must pass through the outer shell, although non-magnetic metal materials are currently selected, they only weaken the shielding of electromagnetic waves, and more or less will affect the transmission of electromagnetic waves. Especially when receiving electromagnetic waves, the energy of electromagnetic waves is very weak. Summary of the Utility Model

[0004] In view of the above problems, the present application provides a logging device for easily transmitting electromagnetic waves while drilling, which is used to solve the technical problem that existing electromagnetic waves are affected by the outer shell and have poor signal when receiving or transmitting signals.

[0005] To achieve the above object, the inventor provides a logging device for easily transmitting electromagnetic waves while drilling, including:

[0006] A logging mechanism, which includes an outer shell, a microcontroller, a coil assembly, and a transmitting controller. The microcontroller, the coil assembly, and the transmitting controller are installed inside the outer shell. The microcontroller is respectively connected to the coil assembly and the transmitting controller. The coil assembly is connected to the transmitting controller. The outer shell is provided with a coil hole at the position of the coil assembly;

[0007] Two connectors, which are respectively connected to both sides of the logging mechanism;

[0008] A drill bit, which is connected to one of the connectors and is used for drilling.

[0009] Different from the prior art, the technical solution of the present application is provided with a coil hole at the outer shell of the logging mechanism, especially at the position of the coil assembly, so that electromagnetic waves can pass through the coil hole and transmit through the outer shell, thereby increasing the transmitting energy and receiving energy of electromagnetic waves, increasing the detection depth, and at the same time improving the logging accuracy of the logging device for easily transmitting electromagnetic waves while drilling.

[0010] As an implementation manner of the present utility model, the logging mechanism further includes a non-metal block, and the non-metal block is filled at the coil hole.

[0011] Thus, the non-metal block is less likely to shield electromagnetic waves compared to the metal block and has good transmission performance. By filling the non-metal block in the coil hole, impurities or moisture can be prevented from entering the coil hole during the measurement-while-drilling process, thereby affecting the operation of the electromagnetic wave transmission logging-while-drilling device.

[0012] As an embodiment of the present invention, the non-metal block is a rubber block or a silicone rubber block.

[0013] Thus, the rubber block and the silicone rubber block have good elasticity, which facilitates them to be tightly inserted into the coil hole without leaving any gaps. In addition, the rubber block and the silicone rubber block also have good wear resistance, which can extend the service life.

[0014] As an embodiment of the present invention, the coil assembly includes a first coil assembly and a second coil assembly, and the coil holes include a first coil hole and a second coil hole;

[0015] The first coil assembly is arranged between the microcontroller and the transmitting controller, and the housing is provided with a first coil hole at the position of the first coil assembly;

[0016] The second coil assembly is arranged between the transmitting controller and the connector connected to the drill bit, and the housing is provided with a second coil hole at the position of the second coil assembly.

[0017] Thus, setting multiple coil assemblies facilitates the reception and transmission of electromagnetic wave energy, improves the transmitted energy and received energy, and thereby increases the detection depth.

[0018] As an embodiment of the present invention, the first coil assembly includes two connected first coils, and the second coil assembly includes two connected second coils;

[0019] The first coil hole extends horizontally from one of the first coils to the other first coil, and the second coil hole extends horizontally from one of the second coils to the other second coil.

[0020] Thus, setting the first coil hole can cover the length of the first coil, and the second coil hole can cover the length of the second coil, enabling the first coil and the second coil to more easily transmit or receive electromagnetic wave energy.

[0021] As an embodiment of the present invention, the housing is a cylinder, and the housing is provided with more than two first coil holes evenly distributed around its circumference at the position of the first coil assembly, and the housing is provided with more than two second coil holes evenly distributed around its circumference at the position of the second coil assembly.

[0022] Thus, by providing multiple first coil holes and second coil holes, it is ensured that the coil assembly can improve the energy when transmitting or receiving electromagnetic waves, thereby increasing the detection depth.

[0023] As an embodiment of the present utility model, the outer shell is circumferentially and evenly provided with three first coil holes at the first coil assembly, and the outer shell is circumferentially and evenly provided with three second coil holes at the second coil assembly.

[0024] In this way, by providing three first coil holes and second coil holes, the electromagnetic wave while drilling and easy transmission logging device is better when transmitting or receiving electromagnetic wave energy.

[0025] As an embodiment of the present utility model, both the first coil hole and the second coil hole are kidney-shaped holes.

[0026] In this way, by providing that both the first coil hole and the second coil hole are kidney-shaped holes, the length of the outer shell in the horizontal direction is saved. In addition, the kidney-shaped holes are also convenient for filling non-metallic blocks.

[0027] As an embodiment of the present utility model, the lengths of both the first coil assembly and the second coil assembly in the horizontal direction are 210 mm, and the distance between the center points of the first coil assembly and the second coil assembly in the horizontal direction is 630 mm.

[0028] In this way, by setting the specific lengths of the first coil assembly and the second coil assembly and the distance between the first coil assembly and the second coil assembly, it is convenient to determine the opening lengths of the subsequent coil holes.

[0029] As an embodiment of the present utility model, the lengths of both the first coil hole and the second coil hole in the horizontal direction are 230 mm, and the lengths of both the first coil hole and the second coil hole in the vertical direction are 30 mm.

[0030] In this way, according to the lengths of the first coil assembly and the second coil assembly in the horizontal direction, it is set that the lengths of the first coil hole and the second coil hole in the horizontal direction are greater than the lengths of the first coil assembly and the second coil assembly in the horizontal direction, that is, the opening lengths of the first coil hole and the second coil hole are determined to be 230 mm, and the lengths in the vertical direction can be set to be 30 mm each, and the radius of the arc of the kidney-shaped hole is 15 mm.

[0031] The above relevant descriptions of the utility model content are only an overview of the technical solution of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solution of this application, and then can be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features and advantages of this application more easily understood, the following is described in conjunction with the specific embodiments and drawings of this application. Description of the Drawings

[0032] The drawings are only used to show the principles, implementation methods, applications, features and effects of the specific embodiments of this application and other related contents, and should not be considered as a limitation to this application.

[0033] In the accompanying drawings of the specification:

[0034] Figure 1 FIG. is a schematic structural diagram of an electromagnetic wave easy transmission logging - while - drilling device according to an embodiment of the present application;

[0035] Figure 2 FIG. is another schematic structural diagram of an electromagnetic wave easy transmission logging - while - drilling device according to an embodiment of the present application;

[0036] Figure 3 FIG. is a schematic principle diagram of a logging mechanism according to an embodiment of the present application;

[0037] Figure 4 FIG. is a schematic structural diagram of a coil assembly according to an embodiment of the present application;

[0038] Figure 5 FIG. is a schematic structural diagram of a coil hole according to an embodiment of the present application.

[0039] The reference numerals involved in the above - mentioned accompanying drawings are explained as follows:

[0040] 100 - electromagnetic wave easy transmission logging - while - drilling device; 1 - logging mechanism; 11 - housing; 111 - coil hole; 1111 - first coil hole; 1112 - second coil hole; 12 - micro - controller; 13 - coil assembly; 131 - first coil assembly; 1311 - first coil; 132 - second coil assembly; 1321 - second coil; 14 - emission controller; 15 - non - metal block; 2 - connector; 3 - drill bit; X - horizontal direction; Y - vertical direction. Detailed Embodiments

[0041] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following is a detailed description in conjunction with the specific embodiments listed and with reference to the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0042] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it particularly limited to the independence or relevance with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0044] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this article generally represents an "or" logical relationship between the associated objects before and after.

[0045] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0046] Without further limitation, in this application, the expressions "including", "comprising", "having" or other similar expressions used in the statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the said elements. Thus, a process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0047] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0048] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawing, and is only for the convenience of describing the specific embodiment of this application or facilitating the understanding of the reader, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of this application.

[0049] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, terms such as "installation", "connection", "linkage", "fixation", "setting", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0050] For the convenience of description, a horizontal direction and a vertical direction are set, and the horizontal direction and the vertical direction are perpendicular to each other. For the convenience of description, as Figure 1 , Figure 2 and Figure 5 indicated by the arrows, the direction where the arrow X is located is the horizontal direction, and the direction where the arrow Y is located is the vertical direction.

[0051] According to some embodiments of the present application, please refer to Figures 1 to 5 , this embodiment relates to a logging-while-drilling electromagnetic wave easy-transmission logging device 100, including a logging mechanism 1, two connectors 2, and a drill bit 3. The logging mechanism 1 includes a housing 11, a microcontroller 12, a coil assembly 13, and a transmission controller 14. The microcontroller 12, the coil assembly 13, and the transmission controller 14 are installed in the housing 11. The microcontroller 12 is respectively connected to the coil assembly 13 and the transmission controller 14. The coil assembly 13 is connected to the transmission controller 14. The housing 11 is provided with a coil hole 111 at the coil assembly 13; the two connectors 2 are respectively connected to both sides of the logging mechanism 1; the drill bit 3 is connected to one of the connectors 2, and the drill bit 3 is used for drilling.

[0052] The logging-while-drilling electromagnetic wave easy-transmission logging device 100 converts the measured parameters into drilling fluid pressure pulses and transmits them to the ground along with the circulation of the drilling fluid.

[0053] The technical solution of the present application is provided with a coil hole 111 at the housing 11 of the logging mechanism 1, especially at the coil assembly 13, so that the electromagnetic wave can transmit through the coil hole 111 to the housing 11, thereby improving the transmitting energy and receiving energy of the electromagnetic wave, increasing the detection depth, and at the same time improving the logging accuracy of the logging-while-drilling electromagnetic wave easy-transmission logging device 100.

[0054] According to some embodiments of the present application, optionally, as Figure 2 shown, the logging mechanism 1 further includes a non-metallic block 15, and the non-metallic block 15 is filled at the coil hole 111.

[0055] Thus, the non-metal block 15 is less likely to shield electromagnetic waves compared to the metal block and has good transmission performance. By filling the non-metal block 15 at the coil hole 111, impurities or moisture can be prevented from entering the coil hole 111 during the drilling process, thereby affecting the operation of the electromagnetic wave transmission logging while drilling device 100. In addition, the non-metal block 15 has good wear resistance, shock resistance, and non-magnetism.

[0056] According to some embodiments of the present application, optionally, the non-metal block 15 is a rubber block or a silicone block.

[0057] Thus, the rubber block and the silicone block have good elasticity, facilitating tight insertion into the coil hole 111 without leaving gaps. In addition, the rubber block and the silicone block also have good wear resistance, which can extend the service life.

[0058] According to some embodiments of the present application, optionally, as Figure 2 and Figure 3 shown, the coil assembly 13 includes a first coil assembly 131 and a second coil assembly 132, and the coil hole 111 includes a first coil hole 1111 and a second coil hole 1112; the first coil assembly 131 is disposed between the microcontroller 12 and the transmission controller 14, and the housing 11 is provided with a first coil hole 1111 at the first coil assembly 131; the second coil assembly 132 is disposed between the transmission controller 14 and the connector 2 connected to the drill bit 3, and the housing 11 is provided with a second coil hole 1112 at the second coil assembly 132.

[0059] Among them, as Figure 3 shown, the microcontroller 12 is respectively connected to the first coil assembly 131, the transmission controller 14, and the second coil assembly 132, the first coil assembly 131 is connected to the transmission controller 14, and the transmission controller 14 is connected to the second coil assembly 132.

[0060] Thus, setting multiple sets of coil assemblies 13 facilitates the reception and transmission of electromagnetic wave energy, improves the transmitted energy and received energy, and thereby increases the detection depth.

[0061] According to some embodiments of the present application, optionally, as Figure 1 , Figure 2 and Figure 4 shown, the first coil assembly 131 includes two connected first coils 1311, and the second coil assembly 132 includes two connected second coils 1321; the first coil hole 1111 extends along the horizontal direction X from one of the first coils 1311 to the other first coil 1311, and the second coil hole 1112 extends along the horizontal direction X from one of the second coils 1321 to the other second coil 1321.

[0062] Thus, by setting the first coil hole 1111 to cover the length of the first coil 1311 and the second coil hole 1112 to cover the length of the second coil 1321, the first coil 1311 and the second coil 1321 can more easily transmit or receive electromagnetic wave energy.

[0063] According to some embodiments of the present application, optionally, as Figure 1 and Figure 2 shown, the outer shell 11 is a cylinder, and the outer shell 11 is provided with more than two first coil holes 1111 evenly distributed circumferentially at the first coil assembly 131, and the outer shell 11 is provided with more than two second coil holes 1112 evenly distributed circumferentially at the second coil assembly 132.

[0064] Thus, by setting a plurality of first coil holes 1111 and second coil holes 1112, it is ensured that the coil assembly 13 can improve the energy when transmitting or receiving electromagnetic waves, thereby increasing the detection depth.

[0065] According to some embodiments of the present application, optionally, as Figure 1 and Figure 2 shown, the outer shell 11 is provided with three first coil holes 1111 evenly distributed circumferentially at the first coil assembly 131, and the outer shell 11 is provided with three second coil holes 1112 evenly distributed circumferentially at the second coil assembly 132.

[0066] Thus, by setting three first coil holes 1111 and second coil holes 1112, the electromagnetic wave while-drilling logging device 100 is better when transmitting or receiving electromagnetic wave energy.

[0067] According to some embodiments of the present application, optionally, as Figure 1 , Figure 2 and Figure 5 shown, both the first coil hole 1111 and the second coil hole 1112 are kidney-shaped holes.

[0068] Thus, by setting the first coil hole 1111 and the second coil hole 1112 as kidney-shaped holes, the length of the outer shell 11 along the horizontal direction X is saved. In addition, the kidney-shaped holes are also convenient for filling the non-metal block 15. In some embodiments, both the first coil hole 1111 and the second coil hole 1112 can also be rectangular or oval, etc., to adapt to the shape of the outer shell 11.

[0069] According to some embodiments of the present application, optionally, as Figure 4 shown, the lengths of both the first coil assembly 131 and the second coil assembly 132 along the horizontal direction X are 210 mm, and the distance between the center points of the first coil assembly 131 and the second coil assembly 132 along the horizontal direction X is 630 mm.

[0070] Thus, the specific lengths of the first coil assembly 131 and the second coil assembly 132 and the distance between the first coil assembly 131 and the second coil assembly 132 are set to facilitate determining the opening length of the subsequent coil hole 111.

[0071] According to some embodiments of the present application, optionally, as Figure 5 shown, the lengths of the first coil hole 1111 and the second coil hole 1112 along the horizontal direction X are both 230 mm, and the lengths of the first coil hole 1111 and the second coil hole 1112 along the vertical direction Y are both 30 mm.

[0072] Thus, according to the lengths of the first coil assembly 131 and the second coil assembly 132 along the horizontal direction X, it is set that the lengths of the first coil hole 1111 and the second coil hole 1112 along the horizontal direction X are greater than the lengths of the first coil assembly 131 and the second coil assembly 132 along the horizontal direction X, that is, the opening lengths of the first coil hole 1111 and the second coil hole 1112 are determined to be 230 mm, and the lengths along the vertical direction Y can be set to be both 30 mm, and the radius of the arc of the kidney-shaped hole is 15 mm.

[0073] Those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0074] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered in the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electromagnetic wave easy-transmission logging-while-drilling device, characterized in that, Comprising: A logging mechanism, the logging mechanism includes a housing, a microcontroller, a coil assembly, and a transmitting controller. The housing is internally installed with the microcontroller, the coil assembly, and the transmitting controller. The microcontroller is respectively connected to the coil assembly and the transmitting controller. The coil assembly is connected to the transmitting controller. The housing is provided with a coil hole at the coil assembly; Two connectors, the two connectors are respectively connected to both sides of the logging mechanism; A drill bit, the drill bit is connected to one of the connectors, and the drill bit is used for drilling.

2. The electromagnetic wave easy transmission logging while drilling device according to claim 1, wherein The logging mechanism further includes a non-metallic block, and the non-metallic block is filled at the coil hole.

3. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 2, characterized in that, The non-metallic block is a rubber block or a silica gel block.

4. The electromagnetic wave easy transmission logging while drilling device according to claim 1, characterized in that The coil assembly includes a first coil assembly and a second coil assembly, and the coil hole includes a first coil hole and a second coil hole; The first coil assembly is arranged between the microcontroller and the transmitting controller, and the housing is provided with the first coil hole at the first coil assembly; The second coil assembly is arranged between the transmitting controller and the connector connected to the drill bit, and the housing is provided with the second coil hole at the second coil assembly.

5. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 4, wherein The first coil assembly includes two connected first coils, and the second coil assembly includes two connected second coils; The first coil hole extends horizontally from one of the first coils to the other first coil, and the second coil hole extends horizontally from one of the second coils to the other second coil.

6. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 4, wherein, The housing is a cylinder, and the housing is circumferentially and uniformly provided with more than two first coil holes at the first coil assembly, and the housing is circumferentially and uniformly provided with more than two second coil holes at the second coil assembly.

7. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 6, wherein The housing is circumferentially and uniformly provided with three first coil holes at the first coil assembly, and the housing is circumferentially and uniformly provided with three second coil holes at the second coil assembly.

8. The electromagnetic wave easy transmission logging-while-drilling device according to any one of claims 4 to 7, characterized in that Both the first coil hole and the second coil hole are kidney-shaped holes.

9. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 8, wherein The lengths of the first coil assembly and the second coil assembly in the horizontal direction are both 210 mm, and the distance between the center points of the first coil assembly and the second coil assembly in the horizontal direction is 630 mm.

10. The electromagnetic wave easy-transmission logging-while-drilling device according to claim 9, characterized in that, The lengths of the first coil hole and the second coil hole in the horizontal direction are both 230 mm, and the lengths of the first coil hole and the second coil hole in the vertical direction are both 30 mm.

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