Integrated reamer for oil exploitation

Abstract

The utility model discloses an integrated reamer for oil exploitation, which belongs to the technical field of oil exploitation and comprises a drill bit, the top of the drill bit is connected with a threaded sleeve, an adjusting groove is formed in the drill bit, an adjusting device is mounted in the adjusting groove, and the adjusting device comprises a knob and a plurality of expansion plates. According to the device, by rotating the knob, the knob drives the threaded rod to rotate through the rotating rod, then the threaded rod moves downwards in the threaded cylinder, and then the rotating rod is driven to move downwards, so that the rotating rod drives the rotating ring to move downwards through the rotating groove, the rotating ring drives the connecting ring to move downwards, and the connecting ring drives the upper hinge block to move downwards; the upper hinge blocks drive the lower hinge blocks to move outwards through the connecting rods, then the lower hinge blocks drive the expansion plates to move outwards, the multiple expansion plates form different broaching diameters, and then the situation that tools need to be replaced frequently during broaching, and the efficiency is affected is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of petroleum extraction technology, and in particular relates to an integrated reamer for petroleum extraction. Background Technology

[0002] Oil extraction refers to the act of digging and extracting oil from places where oil is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom of the well to the wellhead. When extracting oil, a borehole enlarger is needed to enlarge the borehole and make it more stable for oil extraction.

[0003] Chinese utility model application No. 202223082927.3 discloses a reamer for oil extraction, relating to the field of reamer design technology. It includes a fixed tube, a reamer main body fixing unit, a reamer cutter fixing unit, and a spray component fixing tube with external threads on its upper outer surface. The fixed tube is equipped with the reamer main body fixing unit, and the fixed tube has internal threads at its lower end, which are threaded to the threads on the drill bit. The fixed tube is threaded to the drill bit. The reamer main body fixing unit includes a spray component reamer cutter fixing unit comprising a buffer telescopic column fixing seat, a buffer spring, a telescopic column, a reamer cutter fixing seat, and a reamer cutter. However, in actual use, this device requires carrying different cutters for replacement, resulting in low efficiency. Furthermore, frequent cutter replacements can damage the drill bit and affect its use. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that traditional reamers require frequent tool replacements, resulting in low practicality, and to propose an integrated reamer for oil drilling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated reamer for oil drilling, comprising a drill bit, a threaded sleeve connected to the top of the drill bit, an adjustment groove provided inside the drill bit, and an adjustment device installed in the adjustment groove, the adjustment device comprising a knob and multiple extension plates, a lower hinge block connected to one side of the extension plate, a connecting rod hinged to one side of the lower hinge block, an upper hinge block hinged to the top of the connecting rod, and a common connecting ring connecting the multiple upper hinge blocks, a rotating ring connected to the inner wall of the connecting ring, a rotating rod connected to the bottom of the knob, a rotating groove provided on the outer wall of the rotating rod, a threaded rod connected to the bottom of the rotating rod, and a threaded cylinder threadedly connected to the outer wall of the threaded rod.

[0006] As a further description of the above technical solution:

[0007] The bottom of the threaded cylinder is connected to the bottom of the inner wall of the adjusting groove, and the outer wall of the rotating ring is slidably connected to the inner wall of the rotating groove, and the inner wall of the connecting ring is rotatably connected to the outer wall of the rotating rod.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the drill bit is provided with multiple connecting grooves. One side of the connecting groove is connected to one side of the adjustment groove, and one side of the extension plate extends out of the adjustment groove through the connecting groove.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the adjustment groove is connected to a partition plate, and a through hole is provided at the top of the partition plate. The top of the rotating rod extends out of the adjustment groove through the through hole, and the outer wall of the rotating rod is slidably connected to the inner wall of the through hole.

[0012] As a further description of the above technical solution:

[0013] A trapezoidal block is connected to the top of the connecting groove, and a trapezoidal groove is opened on the top of the expansion plate. The inner wall of the trapezoidal groove is slidably connected to the outer wall of the trapezoidal block.

[0014] As a further description of the above technical solution:

[0015] The bottom of the inner wall of the connecting groove is provided with a sealing device. The sealing device includes a movable groove, which is opened at the bottom of the connecting groove. A sealing block is slidably connected in the movable groove. A bottom groove is opened at the bottom of the sealing block. A spring is connected to one side of the bottom groove. The other end of the spring is connected to the bottom of the movable groove. The top of the sealing block is provided with an inclined surface, and one side of the inclined surface of the sealing block is in contact with one side of the expansion plate.

[0016] As a further description of the above technical solution:

[0017] Limiting grooves are provided on both sides of the inner wall of the movable groove, and limiting blocks are slidably connected in the limiting grooves. One side of the limiting block is connected to one side of the sealing block. A fixing groove is provided on the top of the bottom groove, and a fixing rod is slidably connected in the fixing groove. The bottom of the fixing rod is connected to the bottom of the movable groove, and a spring is sleeved on the outside of the fixing rod.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting an adjustment device, rotating the knob causes the threaded rod to rotate via the rotating rod, which in turn causes the threaded rod to move downward within the threaded cylinder, thereby causing the rotating rod to move downward. This causes the rotating rod to move the rotating ring downward via the rotating groove, which in turn causes the connecting ring to move downward. The connecting ring then causes the upper hinge block to move downward, and the upper hinge block, via the connecting rod, causes the lower hinge block to move outward. This causes the lower hinge block to move the expansion plate outward, resulting in multiple expansion plates forming different sizes of enlarged hole diameters. This avoids the need for frequent tool changes during hole enlargement, which affects efficiency.

[0020] 2. In this utility model, by setting a sealing device, the expansion plate moves outward, causing the expansion block to squeeze the sealing block, and the sealing block moves downward through the inclined surface and squeezes the spring. When the expansion plate moves inward, the sealing block moves upward through the spring's rebound, so that the inclined surface at the top of the sealing block is always in contact with one side of the expansion block. This prevents impurities from entering the adjustment groove from the gap between the expansion plate and the connecting groove during hole expansion, and thus prevents excessive impurities from entering the adjustment groove during long-term use, affecting its use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of an integrated reamer used in oil drilling proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the adjustment device structure of an integrated reamer used in oil drilling, as proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the connecting ring structure of an integrated reamer used in oil drilling, as proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of a sealing device using an integrated reamer in oil extraction, as proposed in this utility model.

[0025] Figure 5 This utility model proposes an integrated reamer for oil extraction. Figure 4 Enlarged structural diagram of section A.

[0026] Legend: 1. Threaded sleeve; 2. Partition plate; 3. Drill bit; 4. Adjusting device; 401. Knob; 402. Rotating rod; 403. Threaded rod; 404. Rotating groove; 405. Connecting ring; 406. Upper hinge block; 407. Connecting rod; 408. Lower hinge block; 409. Threaded cylinder; 410. Extension plate; 411. Trapezoidal groove; 412. Rotating ring; 5. Sealing device; 501. Fixed groove; 502. Sealing block; 503. Bottom groove; 504. Fixed rod; 505. Limiting block; 506. Movable groove; 507. Limiting groove; 508. Spring; 6. Connecting groove; 7. Trapezoidal block; 8. Adjusting groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: an integrated reamer for oil drilling, including a drill bit 3, a threaded sleeve 1 connected to the top of the drill bit 3, an adjustment groove 8 inside the drill bit 3, and an adjustment device 4 installed in the adjustment groove 8. The adjustment device 4 includes a knob 401 and multiple extension plates 410. A lower hinge block 408 is connected to one side of the extension plate 410, and a connecting rod 407 is hinged to one side of the lower hinge block 408. An upper hinge block 406 is hinged to the top of the connecting rod 407, and the multiple upper hinge blocks 406 are connected by the same connecting ring 405. A rotating ring 412 is connected to the inner wall of the connecting ring 405. A rotating rod 402 is connected to the bottom of the knob 401. A rotating groove 404 is opened on the outer wall of the rotating rod 402, and a threaded rod 403 is connected to the bottom of the rotating rod 402. A threaded cylinder 409 is threadedly connected to the outer wall of 403. The bottom of the threaded cylinder 409 is connected to the bottom of the inner wall of the adjusting groove 8. The outer wall of the rotating ring 412 is slidably connected to the inner wall of the rotating groove 404. The inner wall of the connecting ring 405 is rotatably connected to the outer wall of the rotating rod 402. Multiple connecting grooves 6 are opened on the outer wall of the drill bit 3. One side of the connecting groove 6 is connected to one side of the adjusting groove 8. One side of the extension plate 410 extends out of the adjusting groove 8 through the connecting groove 6. A partition plate 2 is connected to the inner wall of the adjusting groove 8. A through hole is opened at the top of the partition plate 2. The top of the rotating rod 402 extends out of the adjusting groove 8 through the through hole. The outer wall of the rotating rod 402 is slidably connected to the inner wall of the through hole. A trapezoidal block 7 is connected to the top of the connecting groove 6. A trapezoidal groove 411 is opened at the top of the extension plate 410. The inner wall of the trapezoidal groove 411 is slidably connected to the outer wall of the trapezoidal block 7.

[0029] In a specific implementation, by setting an adjustment device 4, rotating the knob 401 causes the rotating rod 402 to rotate, which in turn causes the threaded rod 403 to rotate. Through the threads within the threaded cylinder 409, the threaded rod 403 moves downwards within the cylinder, which in turn causes the rotating rod 402 to move downwards. The rotating rod 402 then causes the rotating ring 412 within the rotating groove 404 to move downwards, which in turn causes the connecting ring 405 to move downwards, thereby causing the connecting ring 405 to drive the upper hinge... When block 406 moves downward, the upper hinge block 406 drives one end of the connecting rod 407 to move downward. The connecting rod 407 is hinged to the lower hinge block 408, causing the lower hinge block 408 to move outward. This, in turn, causes the lower hinge block 408 to drive the expansion plate 410 to move outward, so that multiple expansion plates 410 form different sizes of enlarged hole diameters. This avoids the need to frequently change tools during hole enlargement, which affects efficiency. By setting the trapezoidal block 7 to slide in the trapezoidal groove 411, the trapezoidal block 7 provides good support for the expansion plate 410, thereby ensuring the stability of the device during operation.

[0030] A sealing device 5 is provided at the bottom of the inner wall of the connecting groove 6. The sealing device 5 includes a movable groove 506, which is opened at the bottom of the connecting groove 6. A sealing block 502 is slidably connected in the movable groove 506. A bottom groove 503 is opened at the bottom of the sealing block 502. A spring 508 is connected to one side of the bottom groove 503. The other end of the spring 508 is connected to the bottom of the movable groove 506. A slope is provided at the top of the sealing block 502, and one side of the slope of the sealing block 502 is in contact with one side of the expansion plate 410. Limiting grooves 507 are opened on both sides of the inner wall of the movable groove 506. A limiting block 505 is slidably connected in the limiting groove 507. One side of the limiting block 505 is connected to one side of the sealing block 502. A fixing groove 501 is opened at the top of the bottom groove 503. A fixing rod 504 is slidably connected in the fixing groove 501. The bottom of the fixing rod 504 is connected to the bottom of the movable groove 506, and the spring 508 is sleeved on the outside of the fixing rod 504.

[0031] In a specific implementation, by setting a sealing device 5, when the expansion plate 410 moves outward, the inclined surface of the expansion block presses against the sealing block 502, causing the sealing block 502 to move downward under force and compress the spring 508. By setting a fixing rod 504 to support the spring 508, the spring 508 is prevented from bending and affecting the rebound effect when compressed. Then, when the expansion plate 410 moves inward, the sealing block 502 moves upward due to the rebound of the spring 508, so that the inclined surface at the top of the sealing block 502 is always in contact with one side of the expansion block, preventing impurities from entering the adjusting groove 8 from the gap between the expansion plate 410 and the connecting groove 6 during hole expansion and affecting use. By setting a bottom groove 503, the spring 508 has sufficient margin space to ensure its placement when compressed. By setting a limiting block 505 to slide in the limiting groove 507, the sealing block 502 is prevented from shifting and jamming during movement, thus affecting use.

[0032] Working principle: In use, rotating the knob 401 causes the rotating rod 402 to rotate, which in turn rotates the threaded rod 403. The threaded rod 403 moves downward through the thread in the threaded cylinder 409, which in turn causes the rotating rod 402 to move downward. The rotating rod 402 then causes the rotating ring 412 in the rotating groove 404 to move downward, which in turn causes the connecting ring 405 to move downward. The connecting ring 405 then causes the upper hinge block 406 to move downward, which in turn causes the upper hinge block 406 to move the connecting rod 407 downward. Thus, the bottom end of the connecting rod 407 is limited by the lower hinge block 408. This causes the bottom of the connecting rod 407 to move outward, which in turn drives the lower hinge block 408 to move outward. The lower hinge block 408 then drives the expansion plate 410 to move outward, allowing multiple expansion plates 410 to form different sized reaming ranges, avoiding the inconvenience of frequently changing reaming tools required by traditional reamers. At the same time, as the expansion plate 410 moves, it presses against the sealing block 502, ensuring that the top of the sealing block 502 is always in contact with one side of the expansion plate 410, thereby sealing the gap between the expansion plate 410 and the connecting groove 6, preventing impurities from affecting the use of the adjusting groove 8. Finally, the drill bit 3 is installed on the reaming machine for use through the threaded sleeve 1.

[0033] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated reamer for oil drilling, comprising a drill bit (3), characterized in that, The drill bit (3) is connected to a threaded sleeve (1) at the top. An adjustment groove (8) is provided inside the drill bit (3), and an adjustment device (4) is installed inside the adjustment groove (8). The adjustment device (4) includes a knob (401) and multiple extension plates (410). A lower hinge block (408) is connected to one side of the extension plate (410). A connecting rod (407) is hinged to one side of the lower hinge block (408). An upper hinge block (406) is hinged to the top of the connecting rod (407), and a connecting ring (405) is connected between multiple upper hinge blocks (406). A rotating ring (412) is connected to the inner wall of the connecting ring (405). A rotating rod (402) is connected to the bottom of the knob (401). A rotating groove (404) is provided on the outer wall of the rotating rod (402). A threaded rod (403) is connected to the bottom of the rotating rod (402), and a threaded cylinder (409) is threadedly connected to the outer wall of the threaded rod (403).

2. The integrated reamer for oil extraction according to claim 1, characterized in that, The bottom of the threaded cylinder (409) is connected to the bottom of the inner wall of the adjusting groove (8), and the outer wall of the rotating ring (412) is slidably connected to the inner wall of the rotating groove (404), and the inner wall of the connecting ring (405) is rotatably connected to the outer wall of the rotating rod (402).

3. The integrated reamer for oil extraction according to claim 1, characterized in that, The outer wall of the drill bit (3) is provided with multiple connecting grooves (6), one side of the connecting groove (6) is connected to one side of the adjustment groove (8), and one side of the extension plate (410) extends out of the adjustment groove (8) through the connecting groove (6).

4. An integrated reamer for oil extraction according to claim 1, characterized in that, The inner wall of the adjustment groove (8) is connected to a partition (2), and a through hole is provided at the top of the partition (2). The top of the rotating rod (402) extends out of the adjustment groove (8) through the through hole, and the outer wall of the rotating rod (402) is slidably connected to the inner wall of the through hole.

5. An integrated reamer for oil extraction according to claim 3, characterized in that, The top of the connecting groove (6) is connected to a trapezoidal block (7), and the top of the expansion plate (410) is provided with a trapezoidal groove (411). The inner wall of the trapezoidal groove (411) is slidably connected to the outer wall of the trapezoidal block (7).

6. An integrated reamer for oil extraction according to claim 3, characterized in that, The bottom of the inner wall of the connecting groove (6) is provided with a sealing device (5). The sealing device (5) includes a movable groove (506). The movable groove (506) is opened at the bottom of the connecting groove (6). A sealing block (502) is slidably connected in the movable groove (506). A bottom groove (503) is opened at the bottom of the sealing block (502). A spring (508) is connected to one side of the bottom groove (503). The other end of the spring (508) is connected to the bottom of the movable groove (506). The top of the sealing block (502) is provided with an inclined surface, and one side of the inclined surface of the sealing block (502) is in contact with one side of the expansion plate (410).

7. An integrated reamer for oil extraction according to claim 6, characterized in that, The inner walls of the movable groove (506) are provided with limiting grooves (507) on both sides, and limiting blocks (505) are slidably connected in the limiting grooves (507). One side of the limiting block (505) is connected to one side of the sealing block (502). The top of the bottom groove (503) is provided with a fixing groove (501). A fixing rod (504) is slidably connected in the fixing groove (501). The bottom of the fixing rod (504) is connected to the bottom of the movable groove (506), and a spring (508) is sleeved on the outside of the fixing rod (504).

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