Scraping device for oil field workover treatment

Abstract

The utility model discloses a scraping device for oil field workover treatment, which comprises a scraping device main body, the scraping device main body comprises a sleeve scraping main body, the bottom end of the sleeve scraping main body is provided with a drill bit, and the top end of the sleeve scraping main body is provided with a threaded mounting column. A scraping plate is arranged at the top end of the outer surface of the sleeve scraping main body; by designing a reinforcing mechanism, after a scraping device body is rotationally installed in a threaded mode through a threaded installation column, a two-way lead screw rotates to drive a movable sliding body to move on the outer surface of the two-way lead screw, and when the movable sliding body drives an anti-skid reinforcing plate to move, a limiting block limits the anti-skid reinforcing plate; the anti-skid reinforcing plate is movably clamped and fixed to the surface of the internal thread at the end of the driving equipment, the thread mounting column is conveniently reinforced and fixed after being mounted, the anti-skid reinforcing plate is more stable to use when subjected to resistance after being mounted and is not prone to shaking to generate instability, and the reinforcing fixity of mounting of the scraping device body during oil field workover treatment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of scraping devices, and in particular relates to a scraping device for oilfield well repairing operations. Background Art

[0002] During the oilfield exploitation process, well repair operations are often carried out, and the well repair operations are usually carried out by scraping and repairing with a scraper device. The existing scraper device is a device for well repair operations during the oilfield exploitation process. The scraper device is fixedly installed by rotating a threaded column before use, and then the fixed installation is strengthened. The installation, use and replacement are stable, and the fixedness of the main body of the scraper device during the oilfield repair operation is improved.

[0003] The existing scraping device is directly fixedly installed on the end of the external driving equipment by rotating the threaded installation column during oilfield well repair operations, and it is not convenient to strengthen the fixation after installation. The frequent rotation during well repair operations and the resistance easily cause the scraping device to shake slightly and become unstable, and even affect the scraping effect during well repair operations, thereby affecting the problem of strengthening the fixation of the scraping device during oilfield well repair operations. Therefore, the utility model proposes a scraping device for oilfield well repair operations. Utility Model Content

[0004] The purpose of the utility model is to provide a scraping device for oilfield well repair operations, so as to solve the problem that the scraping device proposed in the above background technology is not convenient to strengthen and fix during oilfield well repair operations, and the scraping device is easily caused to shake slightly and become unstable when it rotates frequently and encounters resistance during well repair operations, and even affects the scraping operation effect during well repair, thereby affecting the problem of strengthening the fixation of the scraping device during oilfield well repair operations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a scraping device for oilfield well repairing operation, comprising a scraping device body, the scraping device body comprising a sleeve scraping body, the bottom end of the sleeve scraping body is provided with a drill bit, the top end of the sleeve scraping body is provided with a threaded mounting column, the top end of the outer surface of the sleeve scraping body is provided with a scraping plate, the bottom end edge of the outer surface of the sleeve scraping body is provided with a scraper, and the scraping device body is also provided with:

[0006] A reinforcement mechanism, wherein the reinforcement mechanism comprises a rotating assembly arranged at a middle position inside the threaded mounting column, a top end of the rotating assembly is located inside the threaded mounting column and a movable adjustment assembly is arranged, and an end of the movable adjustment assembly is located on the surface of the threaded mounting column and a reinforcement assembly is arranged;

[0007] The invention discloses a disassembly and replacement mechanism, wherein the disassembly and replacement mechanism comprises a locking assembly arranged at the edge of the scraper and located inside the sleeve scraping body, and a screw-in adjustment assembly is arranged at the end of the locking assembly.

[0008] Preferably, the rotating assembly includes a rotating rod rotating at the middle position inside the threaded mounting column, the bottom end of the rotating rod is located at the bottom end of the threaded mounting column and a rotating nut is provided, both ends of the rotating nut are rotated with fixing bolts, and the top end of the rotating rod is provided with an active torsion gear.

[0009] Preferably, the movable adjustment component includes a bidirectional screw rod rotating at the top end of the threaded mounting column, an auxiliary torsion gear is welded at the middle position of the bidirectional screw rod, and the auxiliary torsion gear is meshed and connected with the active torsion gear.

[0010] Preferably, the reinforcement component includes two limiting movement grooves opened on both sides of the threaded mounting column, an anti-slip reinforcement plate is arranged inside the limiting movement groove two, limiting blocks are arranged at both side ends of the anti-slip reinforcement plate, a movable slide is arranged at the middle position of the anti-slip reinforcement plate, and the outer surface of the bidirectional screw rod matches the inner surface structure of the movable slide.

[0011] Preferably, the anti-skid reinforcement plate is an arc-shaped structure, and the two anti-skid reinforcement plates are symmetrically arranged.

[0012] Preferably, the locking assembly includes an installation groove opened at the bottom edge of the outer surface of the sleeve scraping body, a limited movement groove is opened at the inner edge of the installation groove, the inner limit of the limited movement groove is provided with a clamping head, and a clamping hole is opened at the edge of the scraper, and the end of the clamping head is consistent with the internal structure of the clamping hole.

[0013] Preferably, the screw-in adjustment assembly includes a threaded pull rod arranged at the top end of an inner limit movable groove, the bottom end of the threaded pull rod is fixed to the top end of the chuck by welding, and the top end of the threaded pull rod is located inside the sleeve scraping body and rotates with a screw-in nut.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By designing a reinforcement mechanism, after the threaded installation column is used to rotate and install the scraper device body, the bidirectional screw rod is rotated to drive the movable slide body to move on the outer surface of the bidirectional screw rod. When the movable slide body drives the anti-skid reinforcement plate to move, the limit block limits the anti-skid reinforcement plate until the anti-skid reinforcement plate is moved and clamped on the inner thread surface of the end of the driving device, which is convenient for strengthening and fixing the threaded installation column after installation. It is more stable to use when encountering resistance after installation, and is not easy to shake and cause instability, thereby improving the strengthening and fixation of the scraper device body during well repair operations in oil fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural diagram of the threaded mounting column and the anti-skid reinforcement plate of the utility model;

[0018] Figure 3 It is a schematic diagram of the anti-skid reinforcement plate, the limit block and the movable sliding body structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the scraper and the sleeve scraping body of the utility model;

[0020] Figure 5 For this utility model Figure 4 The enlarged structural diagram of part A in the middle;

[0021] In the figure: 100, scraping device body; 101, sleeve scraping body; 102, scraper; 1021, mounting groove; 1022, clamping head; 1023, threaded pull rod; 1024, screw-in nut; 1025, limit movable groove one; 1026, clamping hole; 103, drill bit; 104, scraping plate; 105, threaded mounting column; 1051, anti-skid reinforcement plate; 1052, limit movable groove two; 1053, limit block; 1054, movable slide; 1055, bidirectional screw rod; 1056, active torsion gear; 1057, rotating rod; 1058, fixing bolt; 1059, rotating nut; 1050, auxiliary torsion gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a scraping device for oilfield well repairing operation, including a scraping device body 100, the scraping device body 100 includes a sleeve scraping body 101, a drill bit 103 is arranged at the bottom end of the sleeve scraping body 101, a threaded mounting column 105 is arranged at the top end of the sleeve scraping body 101, and the scraping device body 100 is installed and used by rotating and mounting the threaded mounting column 105 with the threaded structure on the inner surface of the end of the external driving device, and a scraping plate 104 is arranged at the top end of the outer surface of the sleeve scraping body 101, and a scraper 102 is arranged at the bottom edge of the outer surface of the sleeve scraping body 101, and the drill bit 103 is rotated and screwed into the inside of the oil well. When screwing in, the scraper 102 scrapes the stones protruding from the inner surface of the oil well, and the inner surface is thoroughly scraped again by the scraping plate 104. The scraping device body 100 is also provided with:

[0024] A reinforcement mechanism is provided, and the reinforcement mechanism includes a rotating component arranged at the middle position inside the threaded mounting column 105, the top end of the rotating component is located inside the threaded mounting column 105 and a movable adjustment component is arranged, and the end of the movable adjustment component is located on the surface of the threaded mounting column 105 and a reinforcement component is arranged. When the scraping device body 100 is fixedly installed and used through the threaded mounting column 105, the threaded mounting column 105 is reinforced and fixed by the reinforcement mechanism. After installation, when encountering resistance, it is more stable to use and is not easy to shake and cause instability, thereby improving the enhanced fixation of the scraping device body 100 during well repair operations in oil fields.

[0025] In order to facilitate the rotation adjustment of the bidirectional screw rod 1055 through the rotating assembly and facilitate the adjustment operation, in the present embodiment, preferably, the rotating assembly includes a rotating rod 1057 rotating at the middle position inside the threaded mounting column 105, and the bottom end of the rotating rod 1057 is located at the bottom end inside the threaded mounting column 105 and is provided with a rotating nut 1059, and the top end of the rotating rod 1057 is provided with an active torsion gear 1056, so that a wrench can be engaged on the outer surface of the rotating nut 1059 to drive the rotating rod 1057 and the active torsion gear 1056 to rotate, thereby facilitating the rotation adjustment operation, and fixing bolts 1058 are rotated at both ends of the rotating nut 1059, and the fixing bolts 1058 are rotated to fix the rotating rod 1057 after the rotation adjustment is locked and fixed, so that it is easy to reinforce the installation and use.

[0026] In order to facilitate the movable adjustment and reinforced installation of the anti-slip reinforcement plate 1051 through the movable adjustment component, in the present embodiment, preferably, the movable adjustment component includes a bidirectional screw rod 1055 rotating at the top end of the threaded mounting column 105, and an auxiliary torsion gear 1050 is welded at the middle position of the bidirectional screw rod 1055, and the auxiliary torsion gear 1050 is meshed with the active torsion gear 1056, and the active torsion gear 1056 is rotated to engage with the outer surface of the auxiliary torsion gear 1050 to drive the bidirectional screw rod 1055 to rotate, so as to facilitate the rotation of the bidirectional screw rod 1055 to move and adjust the anti-slip reinforcement plate 1051.

[0027] In order to facilitate the installation of the threaded mounting column 105 rotating seat after installation through the reinforcement component, in this embodiment, preferably, the reinforcement component includes a second limiting movement groove 1052 opened on both sides of the threaded mounting column 105, and an anti-skid reinforcement plate 1051 is arranged inside the second limiting movement groove 1052, and limiting blocks 1053 are arranged on both side ends of the anti-skid reinforcement plate 1051, which is convenient for limiting the movement of the anti-skid reinforcement plate 1051 inside the second limiting movement groove 1052 through the limiting blocks 1053, so as to facilitate stable movement. A movable slide 1054 is arranged at the middle position of the anti-skid reinforcement plate 1051, and the outer surface of the bidirectional screw rod 1055 matches the inner surface structure of the movable slide 1054. When the bidirectional screw rod 1055 rotates, it drives the anti-skid reinforcement plate 1051 to move through the movable slide 1054 until the anti-skid reinforcement plate 1051 is moved and squeezed on the surface of the internal threaded structure of the mounting end of the driving device for reinforcement installation, so as to facilitate the strengthening of fixed installation and use.

[0028] A disassembly and replacement mechanism is provided, and the disassembly and replacement mechanism includes a locking assembly arranged at the edge of the scraper 102 and inside the sleeve scraping body 101, and a screw-in adjustment assembly is arranged at the end of the locking assembly. When the scraper device body 100 is used after installation and the scraper 102 is damaged by frequent scraping, the scraper 102 can be disassembled and replaced by the disassembly and replacement mechanism, which is convenient for disassembly and replacement, thereby improving the convenience of disassembly and replacement of the scraper 102 when the scraper device body 100 is used in oilfield well repair operations.

[0029] In order to facilitate the disassembly, assembly and replacement of the scraper 102 through the locking assembly, and the disassembly, assembly and replacement are convenient, in the present embodiment, preferably, the locking assembly includes a mounting groove 1021 provided at the bottom edge of the outer surface of the sleeve scraping body 101, and the scraper 102 can be placed and fixedly installed through the mounting groove 1021, and a limited movement groove 1025 is provided at the inner edge of the mounting groove 1021, and the internal limit of the limited movement groove 1025 is provided with a clamping head 1022, and a clamping hole 1026 is provided at the edge of the scraper 102, and the end of the clamping head 1022 is matched with the internal structure of the clamping hole 1026 until the clamping head 1022 is clamped in the internal limit movement of the limited movement groove 1025 and is locked and fixedly installed inside the clamping hole 1026, and the disassembly, assembly and replacement operation is convenient.

[0030] In order to facilitate the movement, locking and fixing of the chuck 1022 through the screw-in adjustment component, in the present embodiment, preferably, the screw-in adjustment component includes a threaded pull rod 1023 arranged at the top end inside the limiting movable groove 1025, the bottom end of the threaded pull rod 1023 is fixed to the top end of the chuck 1022 by welding, the top end of the threaded pull rod 1023 is located inside the sleeve scraping body 101 and is rotated with a screw-in nut 1024, the screw-in nut 1024 is rotated at the end of the threaded pull rod 1023 to move the threaded pull rod 1023, and when the threaded pull rod 1023 moves, it drives the chuck 1022 to move, lock and fix it.

[0031] The working principle and use process of the utility model: before using the scraping device for oilfield well repairing operation, firstly, it is installed, and the scraping device body 100 is installed and used by rotating and installing the threaded installation column 105 with the threaded structure on the inner surface of the end of the external driving device, and after installation, the scraping device body 100 is driven by the driving device to rotate, and the drill bit 103 is rotated and screwed into the inside of the oil well. When screwing in, the scraper 102 scrapes the stones protruding from the inner surface of the oil well, and the scraper plate 104 scrapes the inner surface thoroughly again, so as to facilitate the scraping operation of the scraping device body 100 in oilfield well repairing;

[0032] Then, when the scraping device body 100 is installed before use, after the scraping device body 100 is threadedly rotated and installed through the threaded installation column 105, the wrench is engaged with the outer surface of the rotating nut 1059 to drive the rotating rod 1057 and the active torsion gear 1056 to rotate, and the active torsion gear 1056 rotates and bites on the surface of the auxiliary torsion gear 1050 to drive the bidirectional screw rod 1055 to rotate. When the bidirectional screw rod 1055 rotates, it drives the moving slide 1054 to move on the outer surface of the bidirectional screw rod 1055. When the anti-skid reinforcement plate 1051 is driven to move, the limit block 1053 limits the anti-skid reinforcement plate 1051 until the anti-skid reinforcement plate 1051 is moved, clamped and fixed on the inner thread surface of the end of the driving device, and the fixing bolt 1058 is rotated again to fix the rotating nut 1059 and the rotating rod 1057, so as to facilitate the installation and strengthening of the threaded installation column 105. When encountering resistance after installation, it is more stable to use and is not easy to shake and cause instability, thereby improving the strengthening and fixing of the scraping device body 100 during well repair operations in oil fields;

[0033] Finally, before the scraper device body 100 is installed, the scraper 102 is closed inside the installation groove 1021, and the nut 1024 is rotated and screwed into the end of the threaded rod 1023 to drive the threaded rod 1023 to move. When the threaded rod 1023 moves, it drives the clamping head 1022 to move and engage in the clamping hole 1026, so that the scraper 102 is quickly fixed and installed. When the scraper device body 100 is installed and used for a long time, causing the scraper 102 to be damaged, the scraper 102 can be disassembled and replaced by the opposite operation. Compared with the existing direct welding fixation, disassembly and replacement is more convenient, which improves the convenience of the scraper device body 100 for use, disassembly and replacement of the damaged scraper 102 during oilfield well repair operations.

[0034] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraping device for oilfield well repairing operation, comprising a scraping device body (100), the scraping device body (100) comprising a sleeve scraping body (101), a drill bit (103) being arranged at the bottom end of the sleeve scraping body (101), a threaded mounting column (105) being arranged at the top end of the sleeve scraping body (101), a scraping plate (104) being arranged at the top end of the outer surface of the sleeve scraping body (101), and a scraper (102) being arranged at the bottom edge of the outer surface of the sleeve scraping body (101), characterized in that: The scraping device body (100) is also provided with: A reinforcement mechanism, wherein the reinforcement mechanism comprises a rotating assembly arranged at a middle position inside the threaded mounting column (105), a top end of the rotating assembly being located inside the threaded mounting column (105) and a movable adjustment assembly being arranged therein, and an end of the movable adjustment assembly being located on a surface of the threaded mounting column (105) and a reinforcement assembly being arranged therein; A disassembly, assembly and replacement mechanism comprises a locking assembly arranged at the edge of a scraper (102) and located inside a sleeve scraping body (101), wherein a screw-in adjustment assembly is arranged at the end of the locking assembly.

2. A scraping device for oilfield well repairing operations according to claim 1, characterized in that: The rotating assembly comprises a rotating rod (1057) rotating at a middle position inside the threaded mounting column (105); a rotating nut (1059) is arranged at the bottom end of the rotating rod (1057) located inside the threaded mounting column (105); fixing bolts (1058) are rotatably arranged at both ends of the rotating nut (1059); and an active torsion gear (1056) is arranged at the top end of the rotating rod (1057).

3. A scraping device for oilfield well repairing operation according to claim 2, characterized in that: The movable adjustment component comprises a bidirectional screw rod (1055) rotating at the top end inside the threaded mounting column (105), an auxiliary torsion gear (1050) is welded at the middle position of the bidirectional screw rod (1055), and the auxiliary torsion gear (1050) is meshedly connected with the active torsion gear (1056).

4. A scraping device for oilfield well repairing operation according to claim 3, characterized in that: The reinforcement component comprises a second limiting movable groove (1052) provided on both sides of the threaded mounting column (105); an anti-skid reinforcement plate (1051) is arranged inside the second limiting movable groove (1052); limiting blocks (1053) are arranged at both end portions of the anti-skid reinforcement plate (1051); a movable slide (1054) is arranged at the middle position of the anti-skid reinforcement plate (1051); and the outer surface of the bidirectional screw rod (1055) matches the inner surface structure of the movable slide (1054).

5. A scraping device for oilfield well repairing operations according to claim 4, characterized in that: The anti-skid reinforcement plate (1051) is an arc-shaped structure, and the two anti-skid reinforcement plates (1051) are symmetrically arranged.

6. The scraping device for oilfield well repairing operation according to claim 1, characterized in that: The locking assembly comprises a mounting groove (1021) provided at the bottom edge of the outer surface of the sleeve scraping body (101); a limiting movable groove (1025) is provided at the inner edge of the mounting groove (1021); a clamping head (1022) is provided inside the limiting movable groove (1025); a clamping hole (1026) is provided at the edge of the scraper (102); and the end of the clamping head (1022) matches the internal structure of the clamping hole (1026).

7. A scraping device for oilfield well repairing operations according to claim 6, characterized in that: The screw-in adjustment assembly comprises a threaded rod (1023) arranged at the top end inside the limiting movable groove (1025); the bottom end of the threaded rod (1023) is fixed to the top end of the clamping head (1022) by welding; the top end of the threaded rod (1023) is located inside the sleeve scraping body (101) and is rotated with a screw-in nut (1024).

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