Well logging device with guiding and positioning functions

Abstract

The utility model provides a logging device with a guiding and positioning function, which comprises an outer tube, a plurality of positioning holes, a plurality of positioning holes, a plurality of positioning holes, a plurality of positioning holes and a plurality of positioning holes, and is characterized in that strip-shaped holes are formed in the side wall of the outer tube along the axis direction of the outer tube; the inner side of the outer tube is fixedly provided with mounting tubes corresponding to two ends of the strip-shaped holes; one end of the collector sleeve is connected with one end of the outer pipe, the other end of the collector sleeve is provided with a guide head, and a signal collector is installed in the collector sleeve; the elastic sheet is mounted on the inner side of the strip-shaped hole, and mounting columns are arranged at the two ends of the elastic sheet; and the driving ring is used for driving the elastic sheet to be bent. The device has the advantages that according to the diameter of a well, the position of the driving ring is adjusted, then the bending degree of the elastic piece is adjusted, the device is suitable for well logging work of well drilling with different diameters, the application range of the device is widened, when the device moves in the well drilling process and the well wall is uneven, the elastic piece can elastically deform, and the device is prevented from being knocked; and the device can be always coaxially arranged with a drilling well, so that the accuracy of a test result is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of engineering logging technology, and in particular relates to a logging device with guiding and positioning function. Background Technology

[0002] Well logging, also known as geophysical logging, is a method of measuring geophysical parameters by utilizing the electrochemical, electrical, acoustic, and radioactive properties of rock formations. It is one of the applied geophysical methods. In oil drilling, well logging, also known as well completion logging, must be carried out after drilling to the designed well depth to obtain various petroleum geological and engineering technical data.

[0003] The existing logging equipment has the following problems during use: First, it lacks a guiding support structure, which can cause the equipment to get stuck during its movement inside the well and cause severe wear on the surface of the equipment; Second, it lacks a positioning structure, as some logging projects require the sensor to be set coaxially with the well, and the lack of a positioning structure leads to inaccurate test results. Utility Model Content

[0004] In view of this, the present invention aims to provide a logging device with a guiding and positioning function, in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A logging device with guidance and positioning function includes:

[0007] The outer tube has a strip-shaped hole on its side wall along the axis of the outer tube, and an installation tube corresponding to both ends of the strip-shaped hole is fixed inside the outer tube.

[0008] A data collector sleeve, one end of which is connected to one end of an outer tube, and the other end is provided with a guide head. A signal collector is installed inside the data collector sleeve.

[0009] An elastic sheet is installed inside the strip-shaped hole, and mounting posts are provided at both ends of the elastic sheet. The two mounting posts are respectively installed in two mounting tubes.

[0010] A drive ring, which is used to drive the elastic sheet to bend.

[0011] Furthermore, the elastic sheet is provided with mounting seats at both ends, and the mounting post is fixedly connected to the mounting seats;

[0012] The outer diameter of the drive ring matches the inner diameter of the outer tube. The drive ring is installed on the inner side of the outer tube at the end away from the collector sleeve. The drive ring is correspondingly set with the mounting post at one end of the elastic sheet. The drive ring is provided with a guide tube that matches the mounting post. The mounting post is installed on the inner side of the guide tube, and the guide tube is installed on the inner side of the mounting tube.

[0013] The outer tube is provided with a first connecting tube at the end away from the collector sleeve. The outer diameter of the first connecting tube matches the outer diameter of the outer tube. A rotating tube is provided inside the first connecting tube. The inner side of the first connecting tube has an internal thread. The outer side of the rotating tube has an external thread. The rotating tube is threadedly connected to the first connecting tube. The outer diameter of the rotating tube is larger than the inner diameter of the drive ring.

[0014] Furthermore, the inner sides of both ends of the outer tube are provided with internal threads, and the first connecting tube is fixed with a first threaded tube, which is threadedly connected to the inner side of the outer tube.

[0015] The first connecting pipe has a lifting pipe at the end away from the outer pipe, and a second threaded pipe at the end of the lifting pipe near the first connecting pipe. The second threaded pipe is threaded to the inner side of the first connecting pipe. A lifting rod is fixed on the lifting pipe, and the axis of the lifting rod is perpendicular to the axis of the outer pipe.

[0016] Furthermore, a compression spring is provided between the drive ring and the mounting post, and the compression spring is located inside the guide tube.

[0017] Furthermore, the inner sides of both ends of the collector sleeve are provided with internal threads, and a third threaded tube is fixed at one end of the guide head near the collector sleeve, and the third threaded tube is threadedly connected to the inner side of the collector sleeve.

[0018] The end of the guide head furthest from the collector sleeve is a spherical surface;

[0019] The outer diameter of the collector sleeve matches the outer diameter of the outer tube.

[0020] Furthermore, an inner tube is provided inside the outer tube, and a limiting ring is provided outside the inner tube. There are two limiting rings, one of which limits the end face of the mounting seat of the elastic sheet near the end of the collector sleeve, and the other limiting ring limits the middle end of the elastic sheet.

[0021] Furthermore, a flange is fixedly provided at one end of the inner tube near the collector sleeve, and the flange has a through hole corresponding to the mounting column.

[0022] The mounting post is located inside the through hole;

[0023] The side wall of the limiting ring has a notch that matches the mounting tube, but the position of the notch does not correspond to the position of the through hole.

[0024] Furthermore, a second connecting pipe is provided on the inner side of one end of the outer tube near the collector sleeve. One end of the second connecting pipe is threadedly connected to the outer tube, and the other end is fixedly provided with a fourth threaded pipe.

[0025] The fourth threaded pipe is threadedly connected to the collector sleeve.

[0026] Furthermore, the fourth threaded pipe is matched with the internal thread of the first connecting pipe.

[0027] Furthermore, there are multiple outer tubes arranged coaxially, each outer tube is connected to a corresponding collector sleeve, and the outer tubes are connected to the collector sleeves of adjacent outer tubes.

[0028] Compared with the prior art, the logging device with guiding and positioning function described in this utility model has the following beneficial effects:

[0029] (1) The logging device with guiding and positioning function described in this utility model can adjust the position of the drive ring and thus adjust the bending degree of the elastic sheet according to the diameter of the well. It is suitable for logging work of wells with different diameters, which broadens the application range of the device. When the device moves during drilling, the elastic sheet can undergo elastic deformation when the well wall is uneven, preventing damage to the device. It can also always be set coaxially with the well, ensuring the accuracy of the test results.

[0030] (2) In the well logging device with guiding and positioning function described in this utility model, the internal threads of the fourth threaded pipe and the first connecting pipe are matched, and the arrangement of the second connecting pipe and the first connecting pipe facilitates the combined use of multiple devices. Attached Figure Description

[0031] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0032] Figure 1 This is a three-dimensional structural diagram of the device in its first usage state according to an embodiment of the present invention;

[0033] Figure 2 This is a three-dimensional structural diagram of the device in the second usage state according to an embodiment of the present utility model;

[0034] Figure 3 This is a three-dimensional structural diagram of the device in the third usage state according to an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the three-dimensional structure of the hoisting pipe described in an embodiment of this utility model;

[0036] Figure 5This is a three-dimensional structural diagram of the guide head described in an embodiment of the present utility model;

[0037] Figure 6 This is a schematic diagram of the three-dimensional structure of the inner tube according to an embodiment of the present utility model;

[0038] Figure 7 This is a three-dimensional structural diagram of the driving tube described in an embodiment of the present utility model;

[0039] Figure 8 This is a three-dimensional structural diagram of the first connecting pipe according to an embodiment of the present utility model;

[0040] Figure 9 This is a schematic diagram of the three-dimensional structure of the outer tube according to an embodiment of the present utility model;

[0041] Figure 10 This is a schematic diagram of the three-dimensional structure of the elastic sheet described in an embodiment of the present invention;

[0042] Figure 11 This is a schematic cross-sectional view of the device described in an embodiment of the present invention;

[0043] Figure 12 As described in the embodiments of this utility model Figure 11 Schematic diagram at point A in the middle;

[0044] Figure 13 As described in the embodiments of this utility model Figure 11 Schematic diagram at point B in the middle;

[0045] Figure 14 As described in the embodiments of this utility model Figure 11 Schematic diagram at point C.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Outer tube; 2. Collector sleeve; 3. Lifting tube; 4. Elastic sheet; 5. First connecting tube; 6. Drive ring; 7. Inner tube; 8. Second connecting tube; 9. Rotating tube; 10. Compression spring; 11. Universal coupling; 101. Strip hole; 102. Mounting tube; 201. Guide head; 20101. Third threaded tube; 302. Second threaded tube; 301. Lifting rod; 401. Mounting column; 402. Mounting seat; 501. First threaded tube; 601. Guide tube; 701. Limiting ring; 70101. Notch; 702. Flange; 70201. Through hole; 801. Fourth threaded tube. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0049] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] like Figures 1-14 As shown, a logging device with guiding and positioning function includes: an outer tube 1, with three strip-shaped holes 101 arranged along the axis of the outer tube 1 on its side wall, and mounting pipes 102 corresponding to the two ends of the strip-shaped holes 101 fixed inside the outer tube 1; a collector casing 2, one end of which is connected to one end of the outer tube 1, and the other end is provided with a guide head 201, and a signal collector is installed inside the collector casing 2; three elastic plates 4, one elastic plate 4 in each strip-shaped hole 101, the elastic plates 4 are installed inside the strip-shaped hole 101, and mounting posts 401 are provided at both ends of the elastic plates 4, with the two mounting posts 401 respectively installed in the two mounting pipes 102; and a drive ring 6, which is used to drive the elastic plates 4 to bend.

[0053] Signal acquisition devices are used to measure physical properties such as natural gamma rays, neutrons, and sound waves.

[0054] The signal acquisition device measures parameters such as temperature, pressure, and resistivity.

[0055] The signal acquisition device can also be an imaging device, such as a camera, used to acquire high-definition images of the well wall.

[0056] The elastic sheet 4 has mounting seats 402 at both ends, and mounting posts 401 are fixedly connected to the mounting seats 402. The outer diameter of the drive ring 6 matches the inner diameter of the outer tube 1. The drive ring 6 is installed on the inner side of the outer tube 1 away from the collector sleeve 2. The drive ring 6 is correspondingly set with the mounting post 401 at one end of the elastic sheet 4. The drive ring 6 is provided with a guide tube 601 that matches the mounting post 401. The mounting post 401 is installed on the inner side of the guide tube 601. The guide tube 601 is installed on the inner side of the mounting tube 102. The outer tube 1 is provided with a first connecting tube 5 at the end away from the collector sleeve 2. The outer diameter of the first connecting tube 5 matches the outer diameter of the outer tube 1. The inner side of the first connecting tube 5 is provided with a rotating tube 9. The inner side of the first connecting tube 5 is threaded, and the outer side of the rotating tube 9 is threaded. The rotating tube 9 is threadedly connected to the first connecting tube 5. The outer diameter of the rotating tube 9 is larger than the inner diameter of the drive ring 6. The position of the drive ring 6 is adjusted by rotating the rotating tube 9. The drive ring 6 drives the mounting post 401 at one end of the elastic plate 4 to move, and the middle end of the elastic plate 4 bends outward. The rotating tube 9 is adjusted according to the diameter of the well, which improves the application range of the device.

[0057] The inner sides of both ends of the outer tube 1 are threaded. The first connecting tube 5 is fixed with a first threaded tube 501, which is threaded to the inner side of the outer tube 1. The end of the first connecting tube 5 away from the outer tube 1 is provided with a lifting tube 3. The end of the lifting tube 3 near the first connecting tube 5 is provided with a second threaded tube 302, which is threaded to the inner side of the first connecting tube 5. A lifting rod 301 is fixed on the lifting tube 3. The axis of the lifting rod 301 is set perpendicular to the axis of the outer tube 1. The lifting rod 301 is convenient for fixing with the cable.

[0058] In some embodiments, a compression spring 10 is provided between the drive ring 6 and the mounting post 401, with the compression spring 10 located inside the guide tube 601. The compression spring 10 acts as a buffer; when the maximum deformation of the elastic plate 4 is insufficient for passage within the well, the compression spring 10 further compresses to provide the required deformation, preventing the device from getting stuck in the well and preventing damage to the elastic plate 4. A damper can be optionally installed between the compression spring 10 and the drive ring 6.

[0059] The collector sleeve 2 has internal threads on both ends. The guide head 201 is fixed with a third threaded tube 20101 at one end near the collector sleeve 2. The third threaded tube 20101 is threaded to the inside of the collector sleeve 2. The end of the guide head 201 away from the collector sleeve 2 is a spherical surface. The outer diameter of the collector sleeve 2 matches the outer diameter of the outer tube 1.

[0060] An inner tube 7 is provided inside the outer tube 1, and a limiting ring 701 is provided on the outer side of the inner tube 7. There are two limiting rings 701. One limiting ring 701 has its end face limiting the mounting seat 402 of the elastic plate 4 near the end of the collector sleeve 2, and the outer wall of the other limiting ring 701 limits the middle end of the elastic plate 4. A flange 702 is fixedly provided at the end of the inner tube 7 near the collector sleeve 2. The flange 702 has a through hole 70201 corresponding to the mounting post 401. The mounting post 401 is located inside the through hole 70201. The side wall of the limiting ring 701 has a notch 70101 that matches the mounting tube 102. The position of the notch 70101 does not correspond to the position of the through hole 70201. When installing the inner tube 7, align the notch 70101 with the mounting tube 102 and insert it. When the flange 702 contacts the mounting post 401, rotate the inner tube 7 so that the through hole 70201 of the flange 702 is aligned with the mounting post 401, so that the mounting post 401 is inserted into the through hole 70201. Tighten the second connecting tube 8 to fix the inner tube 7. The end of the inner tube 7 away from the flange 702 is located inside the drive ring 6. The inner tube 7 serves to protect the cable. One end of the limiting ring 701 limits the mounting seat 402 of the elastic sheet 4 near the collector sleeve 2 to prevent the mounting post 401 from detaching from the mounting tube 102. The outer wall of the other limiting ring 701 limits the middle end of the elastic sheet 4 to prevent the elastic sheet 4 from bending towards the inside of the outer tube 1.

[0061] A second connecting pipe 8 is provided on the inner side of the end of the outer pipe 1 near the collector sleeve 2. One end of the second connecting pipe 8 is threaded to the outer pipe 1, and the other end is fixed with a fourth threaded pipe 801; the fourth threaded pipe 801 is threaded to the collector sleeve 2. The second connecting pipe 8 serves to limit the movement of the flange 702. The fourth threaded pipe 801 facilitates connection with the collector sleeve 2.

[0062] The fourth threaded pipe 801 matches the internal thread of the first connecting pipe 5. The arrangement of the second connecting pipe 8 and the first connecting pipe 5 facilitates the combined use of multiple devices.

[0063] like Figure 1 The image shows the usage status of a single device.

[0064] like Figure 2 As shown, there are two outer tubes 1, which are arranged coaxially. Each outer tube 1 is connected to a collector sleeve 2. The inner side of the first connecting pipe 5 at one end of the outer tube 1 is threaded to the fourth threaded pipe 801 of the collector sleeve 2 of the adjacent outer tube 1.

[0065] like Figure 3 As shown, there are two outer tubes 1, which are coaxially arranged. Each outer tube 1 is connected to a collector sleeve 2. The first connecting pipe 5 at one end of the outer tube 1 is connected to the fourth threaded pipe 801 of the collector sleeve 2 of the adjacent outer tube 1 through a universal coupling 11.

[0066] Work process:

[0067] When implementing this solution, the position of the drive ring 6 is adjusted according to the diameter of the well, thereby adjusting the bending degree of the elastic plate 4. It is suitable for logging work of wells with different diameters, thus broadening the application range of the device. When the device moves during drilling, if the well wall is uneven, the elastic plate 4 can undergo elastic deformation to prevent damage to the device, and it can always be set coaxially with the well.

[0068] The elastic plate 4 serves a dual function of guiding and supporting, and the installation and disassembly of the elastic plate 4 are convenient through the mounting posts 401 at both ends. The inner tube 7 is moved, and then the mounting post 401 away from the drive ring 6 is moved in the direction of the drive ring 6 to make it detach from the tube, which can complete the disassembly and improve maintenance efficiency.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A logging device with guiding and positioning function, characterized in that, include: The outer tube (1) has a strip hole (101) on its side wall arranged along the axis of the outer tube (1), and an installation tube (102) corresponding to both ends of the strip hole (101) is fixed inside the outer tube (1); The collector sleeve (2) is connected at one end to one end of the outer tube (1) and the other end is provided with a guide head (201). A signal collector is installed inside the collector sleeve (2). An elastic sheet (4) is installed inside the strip hole (101). The elastic sheet (4) has mounting posts (401) at both ends, and the two mounting posts (401) are respectively installed in two mounting tubes (102). A drive ring (6) is used to drive the elastic sheet (4) to bend.

2. A logging device with guiding and positioning function according to claim 1, characterized in that: The elastic sheet (4) is provided with mounting bases (402) at both ends, and the mounting post (401) is fixedly connected to the mounting bases (402); The outer diameter of the drive ring (6) matches the inner diameter of the outer tube (1). The drive ring (6) is installed on the inner side of the outer tube (1) away from the collector sleeve (2). The drive ring (6) is correspondingly set with the mounting post (401) at one end of the elastic sheet (4). The drive ring (6) is provided with a guide tube (601) that matches the mounting post (401). The mounting post (401) is installed on the inner side of the guide tube (601). The guide tube (601) is installed on the inner side of the mounting tube (102). The outer tube (1) is provided with a first connecting tube (5) at the end away from the collector sleeve (2). The outer diameter of the first connecting tube (5) matches the outer diameter of the outer tube (1). A rotating tube (9) is provided inside the first connecting tube (5). The inner side of the first connecting tube (5) has an internal thread. The outer side of the rotating tube (9) has an external thread. The rotating tube (9) is threaded to the first connecting tube (5). The outer diameter of the rotating tube (9) is larger than the inner diameter of the drive ring (6).

3. A logging device with guiding and positioning function according to claim 2, characterized in that: The outer tube (1) has internal threads on the inner sides of both ends, and the first connecting tube (5) is fixed with a first threaded tube (501), which is threaded to the inner side of the outer tube (1). The first connecting pipe (5) is provided with a lifting pipe (3) at one end away from the outer pipe (1). The lifting pipe (3) is provided with a second threaded pipe (302) at one end near the first connecting pipe (5). The second threaded pipe (302) is threaded to the inner side of the first connecting pipe (5). A lifting rod (301) is fixed on the lifting pipe (3). The axis of the lifting rod (301) is set perpendicular to the axis of the outer pipe (1).

4. A logging device with guiding and positioning function according to claim 2, characterized in that: A compression spring (10) is provided between the drive ring (6) and the mounting post (401), and the compression spring (10) is located inside the guide tube (601).

5. A logging device with guiding and positioning function according to claim 1, characterized in that: The collector sleeve (2) has internal threads on both sides. The guide head (201) is fixed with a third threaded tube (20101) at one end near the collector sleeve (2). The third threaded tube (20101) is threaded to the inside of the collector sleeve (2). The end of the guide head (201) away from the collector sleeve (2) is spherical; The outer diameter of the collector sleeve (2) matches the outer diameter of the outer tube (1).

6. A logging device with guiding and positioning function according to claim 1, characterized in that: The outer tube (1) is provided with an inner tube (7) on its inner side, and a limiting ring (701) is provided on the outer side of the inner tube (7). There are two limiting rings (701). One of the limiting rings (701) is positioned so that its end faces the mounting seat (402) of the elastic sheet (4) near the end of the collector sleeve (2). The outer side wall of the other limiting ring (701) is positioned so that its middle end faces the elastic sheet (4).

7. A logging device with guiding and positioning function according to claim 6, characterized in that: A flange (702) is fixedly provided at one end of the inner tube (7) near the collector sleeve (2), and a through hole (70201) corresponding to the mounting column (401) is opened on the flange (702); The mounting post (401) is located inside the through hole (70201); The side wall of the limiting ring (701) has a notch (70101) that matches the mounting tube (102), and the position of the notch (70101) does not correspond to the position of the through hole (70201).

8. A logging device with guiding and positioning function according to claim 7, characterized in that: The outer tube (1) is provided with a second connecting tube (8) on the inner side of one end near the collector sleeve (2). One end of the second connecting tube (8) is threadedly connected to the outer tube (1), and the other end is fixedly provided with a fourth threaded tube (801). The fourth threaded pipe (801) is threadedly connected to the collector sleeve (2).

9. A logging device with guiding and positioning function according to claim 8, characterized in that: The fourth threaded pipe (801) is matched with the internal thread of the first connecting pipe (5).

10. A logging device with guiding and positioning function according to claim 9, characterized in that: The number of outer tubes (1) is multiple, and the multiple outer tubes (1) are arranged coaxially. Each outer tube (1) is connected to a collector sleeve (2), and the outer tube (1) is connected to the collector sleeve (2) of the adjacent outer tube (1).

Images