Petroleum logging halter assembly structure

Abstract

The utility model relates to the field of well logging, in particular to a petroleum well logging halter assembly structure which comprises a shell, a first thread groove is formed in the top end of the shell, a thread protecting assembly is arranged at the position, located in the first thread groove, of the shell, a mounting hole is formed in the center of the shell, and a branching assembly is arranged on the inner wall of the mounting hole. A connecting hole is formed in the outer wall of the bottom end of the shell, and a connecting assembly is slidably connected into the connecting hole. The branching assembly comprises two connected branching rings, first threaded holes formed in the outer walls of the top ends of the branching rings at equal intervals, and second threaded holes formed in the centers of the outer walls of the bottom ends of the branching rings. After the reinforcing screw is screwed in the second thread groove, the shell and the thread protecting head are prevented from rotating mutually, foreign matter entering caused by loose thread connection is prevented, rotation is prevented conveniently, stability is improved, and use is convenient; a plurality of sealing grooves in the outer wall of the sheath rod are matched with a sealing ring to seal the connecting hole, foreign matter is prevented from entering the inner wall, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of well logging technology, and in particular to a structure of a well logging head assembly. Background Technology

[0002] The auger, used to connect instruments and cables, is widely used. For example, the safety device for the auger of downhole instruments consists of a housing assembly, a cable connector assembly, a retrieval assembly, and matching accessories. The upper part of the housing assembly is connected and positioned to the retrieval assembly via a locking block and a disc spring. The lower part of the housing assembly is connected to the downhole logging instrument via a connector. The cable connector is positioned inside the retrieval assembly via a locking block.

[0003] During use, the working environment of the manhole cover is underground, which contains mud, water, sand and gravel, which can easily cause leakage, allowing foreign objects to enter and causing losses and inaccurate detection. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems and deficiencies by proposing a new structure for an oil well logging head assembly: after the reinforcing screw is screwed into the second threaded groove, the housing and the thread protector rotate relative to each other, preventing foreign objects from entering due to loose threaded connections, thus preventing self-rotation, improving stability, facilitating use, and solving the problem of easy entry of foreign objects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A logging head assembly structure includes a housing, a threaded groove at the top of the housing, a wire guard assembly at one point of the threaded groove, a mounting hole at the center of the housing, a branching assembly on the inner wall of the mounting hole, and a connecting hole at the bottom outer wall of the housing, wherein a connecting assembly is slidably connected; the branching assembly includes two connected branching rings, a threaded hole 1 equidistantly opened at the top outer wall of the branching rings, a threaded hole 2 opened at the center of the bottom outer wall of the branching rings, and a tapered branching screw threadedly connected to the outer walls of the threaded hole 1 and the threaded hole 2.

[0007] Preferably, the dividing screw has a wire hole at its center and the bottom outer wall of the dividing screw has equally spaced deformation grooves.

[0008] Preferably, the wire protector assembly includes a wire protector head, a connecting protrusion welded to the outer wall of the bottom end of the wire protector head, and reinforcing holes equally spaced on the outer wall of the wire protector head.

[0009] Preferably, the outer wall of the connecting protrusion is threaded into the first threaded groove, and the outer wall of the housing located at the first threaded groove has two equally spaced threaded grooves. The inner wall of the reinforcing hole is slidably connected to a reinforcing screw, and the bottom end of the reinforcing screw is threaded into the second threaded groove.

[0010] Preferably, the connecting assembly includes a sliding ring, a connector welded to the bottom outer wall of the sliding ring, a screw rod threaded to the center of the connector, a sheath rod welded to the bottom outer wall of the screw rod, and a spring installed on the top outer wall of the sliding ring.

[0011] Preferably, the top end of the spring is mounted on the inner wall of the top end of the connecting hole, and the sliding ring is slidably connected to the inner wall of the connecting hole. The outer wall of the top end of the sheath rod and the outer wall of the connector are both provided with equally spaced sealing grooves.

[0012] Preferably, both the sheath rod and the screw rod have sealing rings fitted on their outer walls at the sealing groove, and the sealing rings are slidably connected to the inner wall of the connecting hole.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Multiple sealing grooves on the outer wall of the sheath rod, together with sealing rings, seal the connection holes, preventing foreign objects from entering the inner wall and improving service life;

[0015] 2. After the reinforcing screw is screwed into the second threaded groove, the housing and the thread protector head rotate relative to each other. This prevents the threaded connection from loosening and causing foreign objects to enter, thus preventing rotation, improving stability, and facilitating use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the unfolded structure of an oil well logging head assembly proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the branch ring structure of a petroleum logging head assembly proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the sliding ring bottom structure of an oil well logging head assembly proposed in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of a petroleum logging head assembly structure proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the overall structure of a petroleum logging head assembly proposed in this utility model.

[0021] In the diagram: 1. Housing, 2. Mounting hole, 3. Connecting hole, 4. Connecting assembly, 5. Threaded groove one, 6. Threaded wire protector assembly, 7. Branching assembly, 8. Branching ring, 9. Threaded hole one, 10. Threaded hole two, 11. Branching screw, 12. Deformation groove, 13. Sliding ring, 14. Connector head, 15. Spring, 16. Screw rod, 17. Protective rod, 18. Sealing groove, 19. Sealing ring, 20. Threaded wire protector head, 21. Connecting protrusion, 22. Reinforcing hole, 23. Threaded groove two, 24. Reinforcing screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1:

[0024] Reference Figure 1-5 As shown, an oil well logging head assembly structure includes a housing 1, a threaded groove 5 at the top of the housing 1, a wire protection assembly 6 at the threaded groove 5, a mounting hole 2 at the center of the housing 1, a branching assembly 7 on the inner wall of the mounting hole 2, and a connecting hole 3 on the outer wall of the bottom end of the housing 1, and a connecting assembly 4 slidably connected in the connecting hole 3.

[0025] The splitter assembly 7 includes two connected splitter rings 8, threaded holes 9 equally spaced on the outer wall of the top of the splitter rings 8, threaded holes 10 at the center of the outer wall of the bottom of the splitter rings 8, and tapered splitter screws 11 threadedly connected to the outer walls of threaded holes 19 and 10. As the splitter screws 11 are screwed into the outer walls of the compression deformation grooves 12 after the threaded holes 19 and 10 are screwed into the threaded holes 19 and 10, the outer wall of the bottom of the splitter screws 11 is brought close to the outer wall of the wire harness, clamping the wire harness in the splitter rings 8, which facilitates fixing the wire harness and prevents the wire harness from shaking.

[0026] The center of the wire divider screw 11 has a wire hole, and the bottom outer wall of the wire divider screw 11 has equally spaced deformation grooves 12.

[0027] Example 2:

[0028] Reference Figure 1 and Figure 3-5 As shown, the wire protection assembly 6 includes a wire protection head 20, a connecting protrusion 21 welded to the outer wall of the bottom end of the wire protection head 20, and reinforcing holes 22 evenly spaced on the outer wall of the wire protection head 20. Multiple sealing grooves 18 on the outer wall of the sheath rod 17 cooperate with the sealing ring 19 to seal the connecting hole 3, preventing foreign objects from entering the inner wall and improving service life.

[0029] The outer wall of the connecting protrusion 21 is threaded into the threaded groove 5, and the outer wall of the housing 1 located at the threaded groove 5 is provided with equally spaced threaded grooves 23. The inner wall of the reinforcing hole 22 is slidably connected to the reinforcing screw 24, and the bottom end of the reinforcing screw 24 is threaded into the threaded groove 23. After the reinforcing screw 24 is screwed into the threaded groove 23, the housing 1 and the thread protector head 20 are allowed to rotate relative to each other, preventing the threaded connection from loosening and causing foreign objects to enter, which helps to prevent self-rotation, improves stability, and facilitates use.

[0030] The connecting assembly 4 includes a sliding ring 13, a connector 14 welded to the bottom outer wall of the sliding ring 13, a screw rod 16 threaded to the center of the connector 14, a protective sleeve rod 17 welded to the bottom outer wall of the screw rod 16, and a spring 15 installed on the top outer wall of the sliding ring 13. After descending to the bottom, the protective sleeve rod 17 first contacts the ground. The protective sleeve rod 17 buffers the impact force of the descent by compressing the spring 15 through the sliding ring 13. Then, the spring 15 supports the sliding ring 13 and the protective sleeve rod 17 to return to their original position.

[0031] The top end of the spring 15 is installed on the inner wall of the top end of the connecting hole 3, and the sliding ring 13 is slidably connected to the inner wall of the connecting hole 3. The outer wall of the top end of the sheath rod 17 and the outer wall of the connector 14 are both provided with equally spaced sealing grooves 18.

[0032] Both the outer walls of the sheath rod 17 and the screw rod 16 are fitted with sealing rings 19 at the sealing groove 18, and the sealing rings 19 are slidably connected to the inner wall of the connecting hole 3.

[0033] Working principle: During use, after the wire protector head 20 is connected to the equipment, the entire unit is lowered down into the well for operation. After reaching the bottom, the sheath rod 17 first contacts the ground. The sheath rod 17 buffers the impact force of descent through the compression spring 15 via the sliding ring 13. Subsequently, the spring 15 supports the sliding ring 13 and the sheath rod 17 to return to their original position. At this time, the instrument begins to work. Multiple sealing grooves 18 on the outer wall of the sheath rod 17, together with the sealing ring 19, seal the connection hole 3, preventing foreign objects from entering the inner wall and improving service life. The wiring assembly 7 in the mounting hole 2 inside the housing 1 has multiple wires passing through the threaded hole 9 and then through the threaded hole 10. The wires are located at the center of the wiring screw 11. As the splitter screw 11 is screwed into threaded holes 9 and 10, the outer wall of the compression deformation groove 12 is compressed, bringing the bottom outer wall of the splitter screw 11 close to the outer wall of the wire harness. This clamps the wire harness in the splitter ring 8, facilitating the fixation of the wire harness and preventing it from shaking. The wire protector head 20 is threaded into threaded groove 5 via connecting protrusion 21. Then, the reinforcing screw 24 is inserted into the reinforcing hole 22. The wire protector head 20 is then rotated so that one end of the reinforcing screw 24 enters threaded groove 23. After the reinforcing screw 24 is screwed into threaded groove 23, the housing 1 and the wire protector head 20 rotate relative to each other. This prevents the threaded connection from loosening and causing foreign objects to enter, thus preventing self-rotation, improving stability, and facilitating use.

[0034] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A petroleum logging marlin head assembly structure comprising a shell (1), characterized in that, The top end of the shell (1) is provided with a threaded groove one (5), and the shell (1) is provided with a wire protection assembly (6) at the threaded groove one (5), the center of the shell (1) is provided with a mounting hole (2), and the inner wall of the mounting hole (2) is provided with a wire distribution assembly (7), the bottom end of the shell (1) is provided with a connecting hole (3), and the connecting assembly (4) is slidably connected in the connecting hole (3). The wire distribution assembly (7) includes two connected wire distribution rings (8), equidistantly arranged threaded holes one (9) on the outer wall of the top end of the wire distribution ring (8), threaded holes two (10) arranged on the outer wall of the center of the bottom end of the wire distribution ring (8), and tapered wire distribution screws (11) threadedly connected on the outer walls of the threaded holes one (9) and the threaded holes two (10).

2. The oil logging marlin head assembly structure of claim 1, wherein, The center of the wire distribution screw (11) is provided with a wire hole, and the bottom outer wall of the wire distribution screw (11) is provided with equidistantly distributed deformation grooves (12).

3. The oil logging marlin head assembly structure of claim 1, wherein, The wire protection assembly (6) includes a wire protection head (20), a connecting protrusion (21) welded on the outer wall of the bottom end of the wire protection head (20), and a reinforcing hole (22) equidistantly arranged on the outer wall of the wire protection head (20).

4. The oil logging marlin head assembly structure of claim 3, wherein, The outer wall of the connecting protrusion (21) is threadedly connected in the threaded groove one (5), and the outer wall of the shell (1) at the threaded groove one (5) is provided with equidistantly distributed threaded grooves two (23), the inner wall of the reinforcing hole (22) is slidably connected with a reinforcing screw (24), and the bottom end of the reinforcing screw (24) is threadedly connected in the threaded groove two (23).

5. The oil well logging marlin head assembly structure of claim 1, wherein, The connecting assembly (4) includes a sliding ring (13), a connecting head (14) welded on the outer wall of the bottom of the sliding ring (13), a screw rod (16) threadedly connected at the center of the connecting head (14), a sheath rod (17) welded on the outer wall of the bottom end of the screw rod (16), and a spring (15) installed on the outer wall of the top end of the sliding ring (13).

6. The oil well logging marlin head assembly structure of claim 5, wherein, The top end of the spring (15) is installed on the inner wall of the top end of the connecting hole (3), and the sliding ring (13) is slidably connected on the inner wall of the connecting hole (3), the outer wall of the sheath rod (17) and the outer wall of the connecting head (14) are both provided with equidistantly distributed sealing grooves (18).

7. The oil well logging marlin head assembly structure of claim 5, wherein, The outer walls of the sheath rod (17) and the screw rod (16) are both provided with sealing rings (19) at the sealing grooves (18), and the sealing rings (19) are slidably connected on the inner wall of the connecting hole (3).

Images