Horizontal well video detection phase indicating device

Abstract

A horizontal well video detection phase indicating device disclosed by the present invention comprises a detection probe, support rods, a protection cone, a fixed seat, a bushing and a dial assembly, the detection probe is in threaded connection with a plurality of support rods, the other ends of the support rods are installed on the protection cone, one side of the protection cone is provided with the fixed seat, the fixed seat is installed on the support rods, and the bushing is installed on the fixed seat. A lining is fixedly connected to the fixing base, and a dial assembly is installed on the lining. According to the invention, the dial assembly is additionally arranged on the detection probe, and the dial assembly enables the turntable to always keep the 0-degree scale to point to the low gravity side of the shaft through the balancing weight, so that the problem that the target phase information of the shaft cannot be obtained when the video image in the horizontal section is lack of judgment basis is solved; the dial assembly can visually read phase information when horizontal section wellbore imaging detection is carried out, the target position wellbore phase accuracy of video imaging detection interpretation results is improved, and more complete wellbore target information is provided for follow-up operation measures and research analysis.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas well visualization detection, and in particular to a horizontal well video detection phase indication device. Background Art

[0002] The visualization detection technology of oil and gas wells is a reliable downhole detection technology. It uses downhole cameras to obtain downhole video images and transmits them to the ground in real time for display through ordinary armored logging cables. After obtaining the horizontal section video image through visualization detection technology, it is necessary to confirm the 360° relative phase of the target in the wellbore in order to provide accurate guidance for taking corresponding measures later. However, since the visualization detection instrument will rotate in the wellbore during the transportation to the horizontal section target position, the acquired video image is not necessarily positive, so the 360° phase of the target in the wellbore cannot be obtained. In the prior art, the video image acquired in the horizontal section can be used to judge the phase in the horizontal section wellbore image through reference objects such as sand accumulation or gas, oil, etc. on the image. However, if there is no reference object such as sand accumulation or gas, oil, etc. in the wellbore, the phase of the target in the wellbore cannot be known, which makes it impossible to provide more accurate guidance for subsequent operation measures. Therefore, a horizontal well video detection phase indication device is proposed. Summary of the invention

[0003] The object of the present invention is to provide a horizontal well video detection phase indication device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a horizontal well video detection phase indication device, comprising a detection probe, a support rod, a cone guard, a fixed seat, a bushing and a dial assembly, wherein the detection probe is threaded with a plurality of support rods, and the other end of the support rod is mounted on the cone guard, a fixed seat is provided on one side of the cone guard, and the fixed seat is mounted on the support rod, a bushing is fixedly connected to the fixed seat, a dial assembly is mounted on the bushing, the dial assembly comprises a turntable, and the turntable is rotatably connected to the bushing, and a counterweight is fixedly connected to the turntable.

[0005] Preferably, a limited step groove is provided on the bushing, and the turntable is rotatably connected in the limited step groove.

[0006] Preferably, a third mounting hole is provided on the turntable, and the bushing is sleeved in the third mounting hole.

[0007] Preferably, a second screw is installed on the bushing, a second threaded hole is opened at a position corresponding to the bushing on the fixing seat, and the second screw is threadedly connected in the second threaded hole.

[0008] Preferably, a fourth mounting hole is provided on the turntable, a first screw is installed in the fourth mounting hole, a third threaded hole is provided on the counterweight block at a position corresponding to the fourth mounting hole, and the first screw is threadedly connected in the third threaded hole.

[0009] Preferably, a plurality of hollow grooves are evenly distributed on the outer side of the third mounting hole, and the hollow grooves are opened on the turntable.

[0010] Preferably, a scale body is provided on the turntable.

[0011] Preferably, a first mounting hole is opened on the guard cone at a position corresponding to the support rod, a second mounting hole is opened on the fixing seat at a position corresponding to the first mounting hole, and one end of the support rod is connected through the first mounting hole and the second mounting hole.

[0012] Preferably, a first threaded hole is provided at a position on the detection probe corresponding to the second mounting hole, a first external thread is provided at one end of the support rod, and the first external thread is threadedly connected in the first threaded hole.

[0013] Preferably, the other end of the support rod is provided with a second external thread, and the first nut and the second nut are threadedly connected to the second external thread, and the first nut is arranged on one side of the guard cone, and the second nut is arranged on one side of the fixing seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: a dial assembly is added to the detection probe, and the dial assembly uses a counterweight block to ensure that the turntable always keeps the 0° scale pointing to the low gravity side of the wellbore, thereby solving the problem of being unable to obtain the wellbore target phase information when there is a lack of judgment basis in the horizontal section video image. The dial assembly can intuitively read the phase information when performing horizontal section wellbore imaging detection, thereby improving the wellbore phase accuracy of the target position of the video imaging detection interpretation results, and providing more complete wellbore target information for subsequent operational measures and research and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall main structure of the present invention;

[0016] Figure 2 for Figure 1 A magnified view of the structure in the middle A area;

[0017] Figure 3 for Figure 1 A magnified view of the structure in the middle B area;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the dial assembly of the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing seat of the present invention;

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the bushing of the present invention;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the counterweight block of the present invention.

[0023] In the figure: 1. detection probe; 11. first threaded hole; 2. support rod; 21. first external thread; 22. second external thread; 23. first nut; 24. second nut; 3. guard cone; 31. first mounting hole; 4. fixing seat; 41. second threaded hole; 42. second mounting hole; 5. bushing; 51. limit step groove; 6. dial assembly; 61. turntable; 62. third mounting hole; 63. fourth mounting hole; 64. scale body; 65. hollow groove; 66. first screw; 67. counterweight; 68. third threaded hole; 69. second screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Please see attached Figure 1 -Attached Figure 8, an embodiment of the present invention: a horizontal well video detection phase indication device, comprising a detection probe 1, a support rod 2, a cone guard 3, a fixing seat 4, a bushing 5 and a dial assembly 6, wherein the detection probe 1 is threadedly connected with a plurality of support rods 2, and the other end of the support rod 2 is mounted on the cone guard 3, a fixing seat 4 is provided on one side of the cone guard 3, and the fixing seat 4 is mounted on the support rod 2, a bushing 5 is fixedly connected to the fixing seat 4, a dial assembly 6 is mounted on the bushing 5, the dial assembly 6 comprises a turntable 61, and the turntable 61 is rotatably connected to the bushing 5, a counterweight 67 is fixedly connected to the turntable 61, the detection probe 1 is used to collect and obtain wellbore video information, the support rod 2 is used to connect the detection probe 1 and the cone guard 3, so that the turntable 61 is located at the downhole detection The imaging area of ​​the probe 1 is within the scope of the imaging area, and the obstruction of the imaging area is minimized, the guard cone 3 is used for protecting the device, the fixing seat 4 is used for installing the bushing 5, the bushing 5 is used for installing the dial assembly 6, the turntable 61 is used to assist in judging the target phase information, and the counterweight 67 is used to keep the turntable 61 always pointing to the low gravity side of the wellbore at 0°; a limited step groove 51 is provided on the bushing 5, and the turntable 61 is rotatably connected in the limited step groove 51, and the bushing 5 installs the turntable 61 through the limited step groove 51; a third mounting hole 62 is provided on the turntable 61, and the bushing 5 is sleeved in the third mounting hole 62, and the third mounting hole 62 is used to accommodate the bushing 5; a second screw 69 is installed on the bushing 5, and a second threaded hole 41 is provided at a position corresponding to the bushing 5 on the fixing seat 4 ... on the fixing seat 4 at a position corresponding to the bushing 5, and the third threaded hole 41 is provided at a position corresponding to the bushing 5. The second screw 69 is threadedly connected to the second threaded hole 41, and the second threaded hole 41 is used to install the second screw 69, and the second screw 69 fixes the bushing 5 to the fixing seat 4; a fourth mounting hole 63 is provided on the turntable 61, and a first screw 66 is installed in the fourth mounting hole 63, and a third threaded hole 68 is provided on the counterweight 67 at a position corresponding to the fourth mounting hole 63, and the first screw 66 is threadedly connected to the third threaded hole 68, and the fourth mounting hole 63 and the third threaded hole 68 are used to install the first screw 66, and the first screw 66 is used to fix the counterweight 67 on the turntable 61; a plurality of hollow grooves 65 are evenly distributed on the outer side of the third mounting hole 62, and the hollow grooves 65 are provided on the turntable 61, and the hollow grooves 65 are used to reduce the weight of the turntable 61; the turntable 6 1 is provided with a scale body 64, and the scale body 64 is used to read the phase information conveniently and intuitively; a first mounting hole 31 is opened at a position corresponding to the support rod 2 on the guard cone 3, and a second mounting hole 42 is opened at a position corresponding to the first mounting hole 31 on the fixing seat 4, and one end of the support rod 2 is connected through the first mounting hole 31 and the second mounting hole 42, and the first mounting hole 31 and the second mounting hole 42 are used to accommodate the support rod 2; a first threaded hole 11 is opened at a position corresponding to the second mounting hole 42 on the detection probe 1, and a first external thread 21 is provided at one end of the support rod 2, and the first external thread 21 is threadedly connected to the first threaded hole 11, and the connection between the support rod 2 and the detection probe 1 is realized by matching the first external thread 21 with the first threaded hole 11;The other end of the support rod 2 is provided with a second external thread 22, and the first nut 23 and the second nut 24 are threadedly connected to the second external thread 22, and the first nut 23 is provided on one side of the guard cone 3, and the second nut 24 is provided on one side of the fixing seat 4. The guard cone 3 and the fixing seat 4 are installed on the support rod 2 by matching the second external thread 22 with the first nut 23 and the second nut 24. ;

[0026] Working principle: When using the present invention, the detection probe 1 is transported to the horizontal section through a continuous oil pipe or a crawler for visual detection. During the transportation process, the instrument rotates with the transportation tool, and the low side of the wellbore gravity is defined as 0°. Since a counterweight block 67 is installed on the turntable 61 in the dial assembly 6, under the action of gravity, the turntable 61 always keeps the 0° scale pointing to the low side of the wellbore gravity. The detection probe 1 collects the target wellbore video image. The collected video image contains the image information of the wellbore inner wall and the image of the turntable 61. When the target is detected on the wellbore inner wall observed by the video image, the 360° phase information of the detection target in the wellbore can be directly read through the scale body 64 on the turntable 61, providing accurate phase information for the visual detection result; wherein, the support rod 2 is used to connect the detection probe 1 and the guard cone 3, so that the turntable 61 is located within the imaging area of ​​the downhole detection probe 1, and And minimize the obstruction of the imaging area, the first threaded hole 11 is matched with the first external thread 21 to realize the connection between the support rod 2 and the detection probe 1, and the second external thread 22 is matched with the first nut 23 and the second nut 24 to install the cone guard 3 and the fixing seat 4 on the support rod 2. The cone guard 3 can prevent the device from being damaged by collision during the downhole detection process. The first mounting hole 31 and the second mounting hole 42 are used to accommodate the support rod 2, the second threaded hole 41 is used to install the second screw 69, the bushing 5 is installed on the turntable 61 through the limit step groove 51, and the second screw 69 fixes the bushing 5 on the fixing seat 4 and limits the turntable 61. The third mounting hole 62 is used to accommodate the bushing 5, the fourth mounting hole 63 and the third threaded hole 68 are used to install the first screw 66, the first screw 66 is used to fix the counterweight block 67 on the turntable 61, and the hollow groove 65 is used to reduce the weight of the turntable 61.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A horizontal well video detection phase indication device, comprising a detection probe (1), a support rod (2), a cone guard (3), a fixing seat (4), a bushing (5) and a dial assembly (6), characterized in that: The detection probe (1) is threadedly connected to a plurality of support rods (2), and the other end of the support rod (2) is mounted on a guard cone (3). A fixing seat (4) is provided on one side of the guard cone (3), and the fixing seat (4) is mounted on the support rod (2). A bushing (5) is fixedly connected to the fixing seat (4), and a dial assembly (6) is mounted on the bushing (5). The dial assembly (6) comprises a rotating disk (61), and the rotating disk (61) is rotatably connected to the bushing (5), and a counterweight (67) is fixedly connected to the rotating disk (61).

2. A horizontal well video detection phase indication device according to claim 1, characterized in that: The bushing (5) is provided with a limited step groove (51), and the rotating disk (61) is rotatably connected in the limited step groove (51).

3. A horizontal well video detection phase indication device according to claim 2, characterized in that: The rotating disk (61) is provided with a third mounting hole (62), and the bushing (5) is sleeved in the third mounting hole (62).

4. A horizontal well video detection phase indication device according to claim 1, characterized in that: A second screw (69) is installed on the bushing (5), a second threaded hole (41) is opened at a position corresponding to the bushing (5) on the fixing seat (4), and the second screw (69) is threadedly connected in the second threaded hole (41).

5. The horizontal well video detection phase indication device according to claim 1, characterized in that: The turntable (61) is provided with a fourth mounting hole (63), a first screw (66) is installed in the fourth mounting hole (63), a third threaded hole (68) is provided on the counterweight (67) at a position corresponding to the fourth mounting hole (63), and the first screw (66) is threadedly connected in the third threaded hole (68).

6. A horizontal well video detection phase indication device according to claim 3, characterized in that: A plurality of hollow grooves (65) are evenly distributed on the outside of the third mounting hole (62), and the hollow grooves (65) are arranged on the rotating disk (61).

7. A horizontal well video detection phase indication device according to claim 6, characterized in that: The rotating disk (61) is provided with a scale body (64).

8. The horizontal well video detection phase indication device according to claim 1, characterized in that: A first mounting hole (31) is provided on the guard cone (3) at a position corresponding to the support rod (2), a second mounting hole (42) is provided on the fixing seat (4) at a position corresponding to the first mounting hole (31), and one end of the support rod (2) is connected through the first mounting hole (31) and the second mounting hole (42).

9. A horizontal well video detection phase indication device according to claim 1, characterized in that: A first threaded hole (11) is provided on the detection probe (1) at a position corresponding to the second mounting hole (42); one end of the support rod (2) is provided with a first external thread (21), and the first external thread (21) is threadedly connected in the first threaded hole (11).

10. A horizontal well video detection phase indication device according to claim 9, characterized in that: The other end of the support rod (2) is provided with a second external thread (22), and the second external thread (22) is threadedly connected with a first nut (23) and a second nut (24), and the first nut (23) is arranged on one side of the guard cone (3), and the second nut (24) is arranged on one side of the fixing seat (4).

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