Suspension structure of underground exploring tube and drilling equipment

Abstract

The invention relates to the technical field of well drilling, and provides a suspension structure of an underground exploring tube and well drilling device.The suspension structure comprises a drill collar, a supporting body, the exploring tube, a locking piece and a linkage assembly arranged in the supporting body, and the supporting body is arranged in the drill collar; the upper end of the supporting body is provided with a first mounting hole for the probe tube to be inserted therein, the locking piece can penetrate through the drill collar in the radial direction and is partially inserted into the supporting body so as to limit rotation and axial movement of the supporting body relative to the drill collar, and the locking piece is arranged in the first mounting hole. The locking piece can push the linkage assembly to be partially inserted into the exploring tube in the radial direction so as to limit rotation and axial movement of the exploring tube relative to the supporting body. According to the technical scheme, the locking piece is matched with the linkage assembly, so that accidental relative movement of the exploring tube can be avoided, the exploring tube is more stably supported in the drill collar, and the overall performance of drilling equipment under severe conditions is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of drilling equipment, and particularly to a suspension structure for a downhole probe and a drilling equipment. Background Art

[0002] Logging technology plays a crucial role in the exploration and development of underground resources such as oil and natural gas. By making real-time measurements of the downhole formation, logging technology can provide accurate data support for the underground geological structure, reservoir characteristics, distribution of oil and gas reservoirs, and the production process. The acquisition of logging data helps professionals such as geologists and engineers accurately identify the location, properties, and reserves of underground oil and gas layers, and provides a basis for the design and production of oil and gas wells.

[0003] With the increasing depth and complexity of oil and gas exploration, traditional logging methods face challenges in some aspects. For example, in extremely deep wells, ultra-deep wells, and complex geological environments (such as high-temperature and high-pressure wells, unconventional oil and gas reservoirs, etc.), the reliability and accuracy of traditional logging instruments have certain limitations. In addition, existing logging technologies often rely on a combination of multiple measurement methods, increasing the complexity and cost of operation, and also posing great challenges to the efficiency of data processing and analysis.

[0004] To improve logging efficiency and data accuracy, the prior art has gradually developed a variety of logging instruments and technical means, including various conventional logging methods such as resistivity logging, gamma-ray logging, density logging, and acoustic logging. These technologies can provide multi-dimensional information of the formation.

[0005] However, in drilling operations, especially in deep wells or complex downhole environments, the fixation of the probe in the drill collar becomes a problem. Since the inner cavity of the drill collar is usually designed to accommodate other drilling tools and is not specifically optimized for fixing the probe, the probe cannot be stably held in the drill collar. Summary of the Invention

[0006] One technical problem to be solved by the present disclosure is: how to stably hold the probe in the drill collar to improve the overall performance of the drilling equipment.

[0007] To solve the above technical problem, an embodiment of the present disclosure provides a suspension structure for a downhole probe, which includes a drill collar, a support body, a probe, a locking member, and a linkage assembly disposed in the support body. The support body is disposed in the drill collar. A first mounting hole for inserting the probe is provided at the upper end of the support body. The locking member can radially penetrate the drill collar and partially insert into the support body to limit the relative rotation and axial movement of the support body with respect to the drill collar. Moreover, the locking member can push the linkage assembly to partially insert into the probe in the radial direction to limit the relative rotation and axial movement of the probe with respect to the support body.

[0008] In some embodiments, the locking member is a locking bolt, the drill collar is provided with a threaded hole, and the locking bolt can be screwed into the threaded hole and partially inserted into the support body.

[0009] In some embodiments, a recess is provided on the outer peripheral surface of the drill collar around the threaded hole, and the hanging structure includes a plugging member disposed in the recess.

[0010] In some embodiments, the support body is provided with a locking hole for receiving the insertion of the locking bolt.

[0011] In some embodiments, a tapered guiding hole is provided on the outer periphery of the support body, which is radially outside the locking hole, and the minimum inner diameter of the guiding hole is equal to the inner diameter of the locking hole.

[0012] In some embodiments, a movable cavity is provided in the support body, the linkage assembly includes a linkage plate disposed in the movable cavity and a first locking rod connected to the radially inner side of the linkage plate, and the locking member can be inserted into the movable cavity and push the linkage plate to move radially inward, so that the first locking rod can be partially inserted into the probe tube along the radial direction.

[0013] In some embodiments, the linkage assembly includes a first elastic member disposed between the support body and the linkage plate, and the first elastic member can drive the linkage plate to move radially outward.

[0014] In some embodiments, the linkage assembly further includes an auxiliary positioning post radially opposite to the locking member, and the radial inward movement of the linkage plate can drive the auxiliary positioning post to move radially outward and insert into the drill collar.

[0015] In some embodiments, the linkage assembly includes a connecting rod connected to the linkage plate and a piston connected to the connecting rod, a piston cavity for receiving the piston is provided in the support body, and the piston can move along with the linkage plate to drive the auxiliary positioning post to move.

[0016] In some embodiments, a groove for receiving the auxiliary positioning post is provided on the outer periphery of the support body, the groove is communicated with the piston cavity, and the piston can push the auxiliary positioning post to move radially outward through gas pressure.

[0017] In some embodiments, a second elastic member is provided between the auxiliary positioning post and the support body, and the second elastic member can drive the auxiliary positioning post to move radially inward.

[0018] In some embodiments, an annular groove accommodating a conductive slip ring is provided at the lower end of the drill collar. A first wire through hole is provided in the support body, with one end communicating with the first mounting hole and the other end communicating with the movable cavity. The linkage plate is provided with a wire through hole aligned with the first wire through hole. The locking member is of a hollow structure and is aligned with the wire through hole. A second wire through hole is provided in the drill collar, with one end extending to the annular groove and the other end extending to the upper part of the locking member.

[0019] In some embodiments, it further includes a flow guiding end head. A second mounting hole for accommodating the insertion of the flow guiding end head is provided at the lower end of the support body. The locking member can push the linkage assembly to partially insert into the flow guiding end head in the radial direction to restrict the rotation and axial movement of the flow guiding end head relative to the support body.

[0020] In some embodiments, the linkage assembly includes a second locking rod connected to the radially inner side of the linkage plate. The locking member can push the linkage plate to move radially inward so that the second locking rod can partially insert into the flow guiding end head in the radial direction.

[0021] In some embodiments, an upward annular step surface is provided in the drill collar, and the support body is pressed against the annular step surface.

[0022] In some embodiments, a plurality of seal grooves accommodating sealing rings are provided on the outer periphery of the support body.

[0023] On the other hand, this solution also provides a drilling device, which includes the hanging structure of the downhole probe described in the above solution.

[0024] Through the above technical solution, through the cooperation of the locking member and the linkage assembly, the accidental relative movement of the probe can be avoided, making the probe more stably supported in the drill collar and ensuring the overall performance of the drilling device under harsh conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a perspective view of the hanging structure of the downhole probe disclosed in the embodiment of the present disclosure;

[0027] Figure 2 is a cross-sectional view of the hanging structure of the downhole probe disclosed in the embodiment of the present disclosure;

[0028] Figure 3 is a perspective view of the support disclosed in the embodiments of the present disclosure;

[0029] Figure 4 is a cross-sectional view of the support disclosed in the embodiments of the present disclosure;

[0030] Figure 5 is a schematic diagram of the internal structure of the support disclosed in the embodiments of the present disclosure;

[0031] Figure 6 is Figure 5 an enlarged view of part A in

[0032] Explanation of reference numerals:

[0033] 1, drill collar; 2, annular stepped surface; 3, support; 4, sonde; 5, first mounting head; 6, first mounting hole; 7, diversion end; 8, second mounting head; 9, second mounting hole; 10, guiding hole; 11, threaded hole; 12, locking member; 13, recessed portion; 14, plugging member; 15, sealing groove; 16, sealing ring; 17, locking groove; 18, movable cavity; 19, linkage plate; 20, first elastic member; 21, first locking rod; 22, connecting rod; 23, piston; 24, piston cavity; 25, auxiliary positioning post; 26, groove; 27, blind hole; 28, first wire through hole; 29, wire through hole; 30, second wire through hole; 31, annular groove; 32, conductive slip ring. Detailed implementation manners

[0034] The following further describes the implementation manners of the present disclosure in detail with reference to the drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but including all technical solutions falling within the scope of the claims.

[0035] These embodiments of the present disclosure are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of the components and steps, the components of the materials, the numerical expressions and values set forth in these embodiments should be construed as merely exemplary, rather than as limitations.

[0036] It should be noted that in the description of the present disclosure, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of describing the present disclosure 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, and thus should not be construed as a limitation to the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0037] In addition, the "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the elements before this word are covered by the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0038] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0039] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0040] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0041] Reference Figures 1-6, this solution provides a suspension structure for downhole sonde. Among them, it includes a drill collar 1, a support body 3, a sonde 4, a locking member 12, and a linkage assembly arranged in the support body 3. The support body 3 is arranged in the drill collar 1. A first mounting hole 6 for inserting the sonde 4 is provided at the upper end of the support body 3. The locking member 12 can radially pass through the drill collar 1 and partially insert into the support body 3 to limit the rotation and axial movement of the support body 3 relative to the drill collar 1. Moreover, the locking member 12 can push the linkage assembly to partially insert into the sonde 4 radially to limit the rotation and axial movement of the sonde 4 relative to the support body 3.

[0042] Reference Figure 2 As shown, the drill collar 1 is generally formed in a tubular shape as a whole. The support body 3 can be inserted into the interior of the drill collar 1 in the axial direction to support the sonde 4. Among them, the outer peripheral surface of the support body 3 and the inner peripheral surface of the drill collar 1 are in contact with each other to prevent the support body 3 from shaking laterally relative to the drill collar 1. And among them, the support body 3 and the drill collar 1 are coaxially arranged.

[0043] A first mounting hole 6 is formed at the upper end of the support body 3. The first mounting head 5 of the sonde 4 can be inserted into the first mounting hole 6 to realize the installation of the sonde 4 on the drill collar 1. The outer peripheral surface of the sonde 4 can be in contact with the inner wall surface of the first mounting hole 6 to prevent the sonde 4 from shaking laterally relative to the support body 3.

[0044] In addition, in order to ensure that the sonde 4 is more firmly fixed relative to the drill collar 1, a locking member 12 and a linkage assembly are also provided.

[0045] Among them, the locking member 12 can radially pass through the drill collar 1 from the outside and partially insert into the support body 3, which can lock the drill collar 1 and the support body 3 to each other. On the one hand, it can limit the rotation of the support body 3 relative to the drill collar 1 around the central axis of the drill collar 1, and on the other hand, it can also limit the axial movement of the support body 3 relative to the drill collar 1.

[0046] In addition, a linkage assembly is also arranged in the support body 3. When the locking member 12 is inserted into the support body 3 radially, it can drive the linkage assembly to move, so that the linkage assembly partially inserts into the sonde 4 in the radial direction (when the sonde 4 is installed in place). For example, it inserts into the locking groove 17 on the outer periphery of the sonde 4, thereby locking the sonde 4 in the support body 3. On the one hand, it can limit the rotation of the sonde 4 relative to the support body 3 around the central axis of the support body 3 (i.e., the drill collar 1), and on the other hand, it can also limit the axial movement of the sonde 4 relative to the support body 3.

[0047] It can be seen that the sonde 4 is locked relative to the support body 3, and the support body 3 is locked relative to the drill collar 1. Therefore, the sonde 4 is locked relative to the drill collar 1 and is in a relatively stable state.

[0048] In this solution, through the cooperation of the locking member and the linkage assembly, the probe tube can be prevented from moving relatively accidentally, enabling the probe tube to be more stably supported in the drill collar, thus ensuring the overall performance of the drilling equipment under harsh conditions.

[0049] Among them, in some embodiments, the locking member 12 is a locking bolt, the drill collar 1 is provided with a threaded hole 11, and the locking bolt can be screwed into the threaded hole 11 and partially inserted into the support body 3. The locking member 12 can be in the form of a locking bolt. The locking bolt can be screwed into the threaded hole 11. During installation, the locking bolt can be inserted into the threaded hole 11 radially. By rotating the locking bolt, the locking bolt can continuously move radially inward and be screwed into the threaded hole 11, and finally the locking bolt is partially inserted into the support body 3. On the one hand, it can achieve the locking of the support body 3. On the other hand, after the radially inward end of the locking bolt is inserted into the support body 3, it can contact the linkage assembly to drive the linkage assembly to move, facilitating the locking of the probe tube 4 by the linkage assembly. In other embodiments, the locking member 12 can also be in the form of a pin or the like.

[0050] Among them, in some embodiments, a recess 13 surrounding the threaded hole 11 is provided on the outer peripheral surface of the drill collar 1, and the hanging structure includes a plugging member 14 provided in the recess 13. Refer to Figure 1 , Figure 2 , Figure 4 As shown, the cross-sectional area of the recess 13 is larger than the cross-sectional area of the threaded hole 11. It is located radially outside the threaded hole 11. A plugging member 14 can be provided in the recess 13. Through the plugging member 14, the recess 13 can be sealed, thereby sealing the threaded hole 11 and preventing external fluids or debris from entering the inside of the drill collar 1 through the threaded hole 11. Among them, the plugging member 14 is generally plate-shaped.

[0051] Among them, in some embodiments, the support body 3 is provided with a locking hole 33 for accommodating the insertion of the locking bolt. The locking hole 33 extends along the radial direction of the support body 3 and can accommodate the locking bolt to be inserted therein to achieve the locking of the support body 3 by the locking member 12, that is, to restrict the rotation and axial movement of the support body 3. The inner diameter of the locking hole 33 is basically the same as the outer diameter of the locking bolt, so that the locking hole 33 and the locking bolt are closely matched to avoid relative shaking.

[0052] In addition, in some embodiments, a tapered guiding hole 10 located radially outside the locking hole 33 is provided on the outer periphery of the support body 3, and the minimum inner diameter of the guiding hole 10 is equal to the inner diameter of the locking hole 33. Refer to Figure 5As shown, as described above, the inner diameter of the locking hole 33 is substantially the same as the outer diameter of the locking bolt. The inner diameter of the radially outer end of the guiding hole 10 is larger than the outer diameter of the locking bolt. This allows the locking bolt, when starting to be inserted into the guiding hole 10, to be non-coaxial with the guiding hole 10 and the locking hole 33, that is, it allows a certain deviation of the locking bolt relative to the locking hole 33. The guiding hole 10 can guide the locking bolt through its tapered inner circumferential surface, so that the locking bolt moves laterally relative to the guiding hole 10, and finally makes the locking bolt align coaxially with the locking hole 33, so that it can be inserted into the locking hole 33 more precisely. Of course, during the installation process, if the locking bolt is deviated relative to the locking hole 33, this indicates that the support body 3 is deviated relative to the drill collar 1. When the locking bolt moves radially inward and laterally relative to the guiding hole 10, the support body 3 moves relative to the drill collar 1, and finally makes the locking hole 33 align with the locking bolt.

[0053] In addition, in some embodiments, an active cavity 18 is provided in the support body 3. The linkage assembly includes a linkage plate 19 disposed in the active cavity 18 and a first locking rod 21 connected to the radially inner side of the linkage plate 19. The locking member 12 can be inserted into the active cavity 18 and push the linkage plate 19 to move radially inward, so that the first locking rod 21 can be partially inserted into the probe tube 4 along the radial direction. The linkage plate 19 is generally plate-shaped and can move radially in the active cavity 18 in the support body 3, including radially outward and radially inward movements. The active cavity 18 can communicate with the locking hole 33 described above, that is, the radially inner end of the locking hole 33 extends to the active cavity 18, to allow the locking member 12 to pass through the locking hole 33 and be inserted into the active cavity 18, and push the linkage plate 19 to move radially inward. A first locking rod 21 is connected to the radially inner side of the linkage plate 19, which can cooperate with the probe tube 4. For example, it can be inserted into the locking groove 17 along the radial direction. During installation, the locking member 12, such as a locking bolt, is inserted into the threaded hole 11, then passes through the guiding hole 10 and the locking hole 33 and is inserted into the active cavity 18. The locking member pushes the linkage plate 19 to move radially inward, and the first locking rod 21 is inserted into the locking groove 17 radially inward, thereby realizing the locking of the support body 3 and the probe tube 4.

[0054] Among them, in some embodiments, the linkage assembly includes a first elastic member 20 disposed between the support body 3 and the linkage plate 19, and the first elastic member 20 can drive the linkage plate 19 to move radially outward. The first elastic member 20 can provide an elastic force to the linkage plate 19, so that the linkage plate 19 can move radially outward. Before installing the locking member 12, under the action of the first elastic member 20, the linkage plate 19 is on the radially outward side in the movable cavity 18, so that the first locking rod 21 can retract from the first mounting hole 6 to avoid affecting the insertion of the probe 4 into the first mounting hole 6. Among them, in some embodiments, the first elastic member 20 can be a structure such as a helical spring, a leaf spring, or an elastic rubber.

[0055] In addition, in some embodiments, the linkage assembly further includes an auxiliary positioning post 25 radially opposite to the locking member 12, and the radially inward movement of the linkage plate 19 can drive the auxiliary positioning post 25 to move radially outward and insert into the drill collar 1. Refer to Figure 4 As shown, the auxiliary positioning post 25 and the locking member 12 are located on both sides of the central axis of the support body 3, that is, opposite to each other in the radial direction. When the linkage plate 19 moves radially inward under the action of the locking member 12, it can also drive the auxiliary positioning post 25 to move radially outward to partially insert into the drill collar 1, which can also play a locking role, that is, restricting the rotation and axial movement of the support body 3. Among them, a blind hole 27 for receiving the insertion of the auxiliary positioning post 25 is provided on the inner peripheral surface of the drill collar 1, and the inner peripheral surface of the blind hole 27 and the outer peripheral surface of the auxiliary positioning post 25 can be in contact with each other, so as to restrict the lateral shaking of the auxiliary positioning post 25.

[0056] In addition, in some embodiments, the linkage assembly further includes a connecting rod 22 connected to the linkage plate 19 and a piston 23 connected to the connecting rod 22. A piston cavity 24 for receiving the piston 23 is provided in the support body 3, and the piston 23 can move with the linkage plate 19 to drive the auxiliary positioning post 25 to move. The linkage plate 19 has a certain length in the direction parallel to the central axis of the support body 3, and a plurality of connecting rods 22 are provided in this direction. The connecting rods 22 connect the linkage plate 19 and the piston 23 together, so that the piston 23 can move linearly synchronously with the linkage plate 19. The movement of the piston 23 can drive the auxiliary positioning post 25 to move so that the auxiliary positioning post 25 can be inserted into the blind hole 27.

[0057] Among them, in some embodiments, a groove 26 for accommodating the auxiliary positioning post 25 is provided on the outer periphery of the support body 3. The groove 26 communicates with the piston chamber 24, and the piston 23 can push the auxiliary positioning post 25 to move radially outward through gas pressure. The cross-section of the piston 23 perpendicular to the moving direction of the piston 23 and the cross-section of the auxiliary positioning post 25 perpendicular to the moving direction of the auxiliary positioning post 25 may have different areas. Correspondingly, when the linkage plate 19 moves radially inward, the moving distance of the piston 23 in the piston chamber 24 and the moving distance of the auxiliary positioning post 25 in the groove 26 are also different. For example, when the cross-sectional area of the piston 23 is larger than the cross-sectional area of the auxiliary positioning post 25, the moving distance of the auxiliary positioning post 25 is greater than the moving distance of the piston 23; or when the cross-sectional area of the piston 23 is smaller than the cross-sectional area of the auxiliary positioning post 25, the moving distance of the auxiliary positioning post 25 is less than the moving distance of the piston 23; or when the cross-sectional area of the piston 23 is equal to the cross-sectional area of the auxiliary positioning post 25, the moving distance of the auxiliary positioning post 25 is equal to the moving distance of the piston 23. Therefore, by designing the ratio of the cross-sectional areas of the piston 23 and the auxiliary positioning post 25, the ratio of the moving distances of the piston 23 and the auxiliary positioning post 25 can be set, that is, the ratio of the moving distances of the auxiliary positioning post 25 and the first locking rod 21 can be set.

[0058] In addition, in some embodiments, a second elastic member 34 is provided between the auxiliary positioning post 25 and the support body 3. The second elastic member 34 can drive the auxiliary positioning post 25 to move radially inward. The second elastic member 34 can apply a radially inward acting force to the auxiliary positioning post 25, causing the auxiliary positioning post 25 to move radially inward. Before installing the locking member 12, the linkage plate 19 is located on the radially outer side of the active chamber 18, and the auxiliary positioning post 25 retracts into the support body 3 under the action of the second elastic member 34 to allow the support body 3 to be inserted into the inside of the drill collar 1. Among them, in some embodiments, the second elastic member 34 can be a structure such as a helical spring, a leaf spring, or an elastic rubber.

[0059] Among them, in some embodiments, an annular groove 31 for accommodating a conductive slip ring 32 is provided at the lower end of the drill collar 1. A first wire through hole 28 is provided in the support body 3, one end of which communicates with the first mounting hole 6 and the other end communicates with the active chamber 18. The linkage plate 19 is provided with a wire through hole 29 aligned with the first wire through hole 28. The locking member 12 is a hollow structure and is aligned with the wire through hole 29. A second wire through hole 30 is provided in the drill collar 1, one end of which extends to the annular groove 31 and the other end extends to the upper part of the locking member 12. Refer to Figure 2As shown, an annular groove 31 is provided on the lower end face of the drill collar 1, in which a conductive slip ring 32 is provided, which can contact other devices to achieve signal and power transmission. The first wire through hole 28 includes two ends, namely an axial part and a radial part that communicate with each other. One end of the axial part communicates with the first mounting hole 6, and the radial part communicates with the wire from the probe 4. The wire can extend through the first wire through hole 28 and extend into the movable cavity 18. A wire through hole 29 is provided on the linkage plate 19 to allow the wire to pass through. The locking member 12 is a hollow structure and can allow the wire to continue to extend radially outward (through the locking hole 33 and the guiding hole 10) after passing through the wire through hole 29. After passing through the locking member 12, the wire can pass through the second wire through hole 30 and extend to the conductive slip ring 32. It should be noted that after the locking member 12 is installed in place, the position of the second wire through hole 30 in the threaded hole 11 is located radially outside the locking member 12 to allow the wire to be inserted into the second wire through hole 30. The locking member 12 can be a hollow locking bolt, which can allow the wire to be led out radially outward from the support body 3.

[0060] In addition, in some embodiments, the hanging structure of the downhole probe further includes a diversion end 7. A second mounting hole 9 for inserting the diversion end 7 is provided at the lower end of the support body 3. The locking member 12 can push the linkage assembly to partially insert into the diversion end 7 radially to limit the rotation and axial movement of the diversion end 7 relative to the support body 3. A second mounting hole 9 is provided at the lower end of the support body 3. The second mounting head 8 of the diversion end 7 can be inserted into the second mounting hole 9. Under the action of the locking member 12, the linkage assembly can be inserted into the diversion end 7 radially, thereby locking the diversion end 7, that is, restricting the rotation and axial movement of the diversion end 7 relative to the support body 3. The outer peripheral surface of the second mounting head 8 and the inner peripheral surface of the second mounting hole 9 are in contact with each other to limit the lateral shaking of the second mounting head 8. One end of the diversion end 7 away from the support body 3 is formed into a cone, which can divert the fluid flowing through the drill collar 1. A through fluid channel (not shown in the figure) is provided in the support body 3, and this fluid channel communicates the spaces on the upper and lower sides of the support body 3, allowing the fluid to flow through the support body 3.

[0061] Among them, in some embodiments, the linkage assembly includes a second locking rod 35 connected to the radially inner side of the linkage plate 19. The locking member 12 can push the linkage plate 19 to move radially inwards, so that the second locking rod 35 can be partially inserted into the diversion end 7 along the radial direction. The second locking rod 35 and the first locking rod 21 have a similar structure, and it can be radially inserted into the diversion end 7 to limit the rotation and axial movement of the diversion end 7 relative to the support body 3, realizing stable support for the diversion end 7 and avoiding relative movement with respect to the drill collar 1. In the direction parallel to the axial direction of the support body 3, the second locking rod 35 and the first locking rod 21 are arranged at both ends of the linkage plate 19 to respectively lock the probe 4 and the diversion end 7 arranged at both axial ends of the support body 3.

[0062] In addition, in some embodiments, an upward annular step surface 2 is provided in the drill collar 1, and the support body 3 abuts against the annular step surface 2. The central hole of the drill collar 1 can include two sections, the inner diameter of the upper end is larger than that of the lower section, so that an annular step surface 2 can be formed therebetween. The annular step surface 2 can support the support body 3, so that the support body 3 is kept on the annular step surface 2. With the limiting effects of the locking member 12 and the auxiliary positioning post 25, the support body 3 can be stably held in the drill collar 1.

[0063] In addition, in some embodiments, a plurality of sealing grooves 16 accommodating sealing rings 15 are provided on the outer periphery of the support body 3. The sealing rings 15 can be attached to the inner peripheral surface of the drill collar 1 to improve the sealing performance between the support body 3 and the drill collar 1 and avoid leakage.

[0064] On the other hand, the present solution also provides a drilling device, wherein the drilling device includes the hanging structure of the downhole probe described above. The lower end of the drill collar 1 can be connected to the drill bit, and the upper end can be connected to the drill pipe.

[0065] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0066] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way.

Claims

1. A hanging structure for a downhole probe, characterized in that It includes a drill collar (1), a support body (3), a probe tube (4), a locking member (12), and a linkage assembly disposed in the support body (3). The support body (3) is disposed in the drill collar (1). A first mounting hole (6) for inserting the probe tube (4) is provided at the upper end of the support body (3). The locking member (12) can radially penetrate the drill collar (1) and partially insert into the support body (3) to limit the rotation and axial movement of the support body (3) relative to the drill collar (1). Moreover, the locking member (12) can push the linkage assembly to partially insert into the probe tube (4) radially to limit the rotation and axial movement of the probe tube (4) relative to the support body (3).

2. The hanging structure of the downhole exploration pipe according to claim 1, characterized in that, The locking member (12) is a locking bolt. The drill collar (1) is provided with a threaded hole (11), and the locking bolt can be screwed into the threaded hole (11) and partially inserted into the support body (3).

3. The hanging structure of the downhole probe according to claim 2, characterized in that, A recessed portion (13) surrounding the threaded hole (11) is provided on the outer peripheral surface of the drill collar (1). The hanging structure includes a plugging member (14) disposed in the recessed portion (13).

4. The hanging structure of the downhole probe according to claim 2, characterized in that, The support body (3) is provided with a locking hole (33) for inserting the locking bolt.

5. The suspension structure of the downhole probe according to claim 4, characterized in that, A tapered guiding hole (10) located radially outside the locking hole (33) is provided on the outer periphery of the support body (3). The minimum inner diameter of the guiding hole (10) is equal to the inner diameter of the locking hole (33).

6. The hanging structure of the downhole probe according to claim 1, wherein, An activity cavity (18) is provided in the support body (3). The linkage assembly includes a linkage plate (19) disposed in the activity cavity (18) and a first locking rod (21) connected to the radially inner side of the linkage plate (19). The locking member (12) can insert into the activity cavity (18) and push the linkage plate (19) to move radially inward so that the first locking rod (21) can partially insert into the probe tube (4) radially.

7. The hanging structure of the downhole probe tube according to claim 6, wherein, The linkage assembly includes a first elastic member (20) disposed between the support body (3) and the linkage plate (19), and the first elastic member (20) can drive the linkage plate (19) to move radially outward.

8. The hanging structure of the downhole probe according to claim 6, characterized in that, The linkage assembly further includes an auxiliary positioning post (25) radially opposite to the locking member (12). The radial inward movement of the linkage plate (19) can drive the auxiliary positioning post (25) to move radially outward and insert into the drill collar (1).

9. The suspension structure of the downhole probe according to claim 8, characterized in that, The linkage assembly includes a connecting rod (22) connected to the linkage plate (19) and a piston (23) connected to the connecting rod (22). A piston cavity (24) for accommodating the piston (23) is provided in the support body (3). The piston (23) can move following the linkage plate (19) to drive the auxiliary positioning post (25) to move.

10. The suspension structure of the downhole probe according to claim 9, characterized in that, A groove (26) for accommodating the auxiliary positioning post (25) is provided on the outer periphery of the support body (3). The groove (26) communicates with the piston cavity (24), and the piston (23) can push the auxiliary positioning post (25) to move radially outward through gas pressure.

11. The hanging structure of the downhole probe according to claim 9, characterized in that, A second elastic member (34) is disposed between the auxiliary positioning post (25) and the support body (3), and the second elastic member (34) can drive the auxiliary positioning post (25) to move radially inward.

12. The hanging structure of the downhole probe according to claim 6, characterized in that, An annular groove (31) for accommodating a conductive slip ring (32) is provided at the lower end of the drill collar (1). A first wire through hole (28) with one end communicating with the first mounting hole (6) and the other end communicating with the movable cavity (18) is provided in the support body (3). The linkage plate (19) is provided with a wire through hole (29) aligned with the first wire through hole (28). The locking member (12) is of a hollow structure and is aligned with the wire through hole (29). A second wire through hole (30) with one end extending to the annular groove and the other end extending to the upper part of the locking member (12) is provided in the drill collar (1).

13. The suspension structure of the downhole probe according to claim 6, characterized in that, It further includes a diversion end head (7). A second mounting hole (9) for accommodating the insertion of the diversion end head (7) is provided at the lower end of the support body (3). The locking member (12) can push the linkage assembly to partially insert into the diversion end head (7) in the radial direction to limit the rotation and axial movement of the diversion end head (7) relative to the support body (3).

14. The hanging structure of the downhole probe according to claim 13, characterized in that, The linkage assembly includes a second locking rod (35) connected to the radially inner side of the linkage plate (19). The locking member (12) can push the linkage plate (19) to move radially inward so that the second locking rod (35) can partially insert into the diversion end head (7) in the radial direction.

15. The suspension structure of the downhole probe according to claim 1, characterized in that, An upward annular step surface (2) is provided in the drill collar (1), and the support body (3) is pressed against the annular step surface (2).

16. The hanging structure of the downhole probe according to claim 1, characterized in that, A plurality of seal grooves (16) for accommodating seal rings (15) are provided on the outer periphery of the support body (3).

17. A drilling device, characterized in that, It includes the hanging structure of the downhole exploration pipe according to any one of claims 1 - 16.

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