CN220687274U

CN220687274U - A clearing device for magnetic substance in oil base drilling fluid

Info

Publication number: CN220687274U
Application number: CN202322311602.6U
Authority: CN
Inventors: 周斌; 周其秀; 周强; 周军
Original assignee: Anhui Luhai Petroleum Auxiliary Technology Co ltd; Chengdu Gaopu Petroleum Engineering Technology Co Ltd
Current assignee: Anhui Luhai Petroleum Auxiliary Technology Co ltd; Chengdu Gaopu Petroleum Engineering Technology Co Ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-29
Anticipated expiration: 2033-08-28

Abstract

The utility model discloses a device for removing magnetic substances in oil-based drilling fluid, which comprises a bracket, a magnetic attraction piece, a rotary power source, a penetrating piece, a lifting connecting piece and a bracket, wherein the bracket is arranged on the bracket; the bracket is movably embedded into the bracket, the rotary power source is arranged in the bracket, the rotary power source is fixedly connected with the penetrating piece, the penetrating piece penetrates through the magnetic attraction piece and is inserted into the bracket, the penetrating piece is fixedly matched with the magnetic attraction piece, the penetrating piece is in running fit with the bracket, one end of the lifting connecting piece is connected to the bracket, and the other end of the lifting connecting piece is connected to the bracket. According to the utility model, the lifting connecting piece is used for controlling the lifting of the magnetic piece, the magnetic piece is immersed in the oil-based mud, and the electric power is used for replacing manual driving of the magnetic piece to rotate to adsorb magnetic substances, so that the magnetic efficiency is greatly improved, the time and the labor are saved, and the efficiency of drilling engineering is improved.

Description

A clearing device for magnetic substance in oil base drilling fluid

Technical Field

The utility model relates to the technical field of deep shale exploitation, in particular to a device for removing magnetic substances in oil-based drilling fluid.

Background

Oil gas exploitation in China enters a deep shale exploitation stage, and the general well depth is 6000-6500 m, so that oil-based mud with better performance and a rotary guiding tool are needed to assist drilling engineering when the well depth is more than 3000 m. In order to adjust the performance of the oil-based mud, natural minerals such as barite, asphalt oxide, calcium oxide and the like are added, and the natural minerals are more or less accompanied by magnetic substances. The formation containing magnetic substances is inevitably touched in the drilling stratum, the drill rod is worn in the drilling process, and iron filings with strong magnetic substances are generated, and the magnetic substances are continuously generated in the drilling process. After the magnetic substances pass through the rotary guiding tool, the magnetic substances become magnetic substances, so that magnetic agglomerated particles are easy to be formed to become large and are sucked at the narrow position of the rotary guiding tool to block the tool, so that the tool is invalid and the tool is drilled, a large amount of invalid drilling time is caused, and the drilling engineering is influenced. Because the magnetic agglomerated particles of the magnetic substance become large, erosion is formed on the surface of the rotary tool under high-speed flow, the service life of the tool is reduced, and the loss is remarkable.

At present, a drilling site adopts a magnetic iron block to clean magnetic substances, but the cleaning efficiency of the method is very low, only 300 g of the magnetic substances can be cleaned in one hour, a special person is required to put down the magnetic iron block, the magnetic substances are manually cleaned after one hour, the magnetic substances are continuously put down, and the condition of entering a rotary tool is met after some continuous cleaning for more than ten days on a well.

In view of this, the present patent application is presented.

Disclosure of Invention

The utility model aims to provide a device for removing magnetic substances in oil-based drilling fluid, which utilizes a lifting connecting piece to control the lifting of a magnetic part, and the magnetic part is immersed into oil-based mud and is driven to rotate by electric power instead of manual work to adsorb the magnetic substances, so that the magnetic efficiency is greatly improved, the time and the labor are saved, and the efficiency of drilling engineering is improved.

The utility model is realized by the following technical scheme:

the device for removing the magnetic substances in the oil-based drilling fluid comprises a bracket, a magnetic attraction piece, a rotary power source, a penetrating piece, a lifting connecting piece and a bracket;

the bracket is movably embedded into the bracket, the rotary power source is arranged in the bracket, the rotary power source is fixedly connected with the penetrating piece, the penetrating piece penetrates through the magnetic attraction piece to be inserted into the bracket, the penetrating piece is fixedly matched with the magnetic attraction piece, the penetrating piece is in running fit with the bracket, one end of the lifting connecting piece is connected with the bracket, and the other end of the lifting connecting piece is connected with the bracket.

In an alternative embodiment, the magnetic attraction piece is a magnet disc formed by arranging a plurality of magnet blocks, the magnet disc is positioned inside the roller, and the penetrating piece penetrates through the roller and is fixedly connected with the roller.

In an alternative embodiment, the magnet disc has a notch at the edge to form a magnetic missing area, a limiting inner frame is sleeved in the roller, a missing part matched with the notch is arranged on the limiting inner frame, and a plurality of magnet blocks are distributed and limited in the limiting inner frame.

In an alternative embodiment, the included angle of the notch is 90 °, and the area of the magnetic missing region is one fourth of the area of the magnet disc.

In an alternative embodiment, a space adjusting mechanism is fixedly arranged on the bracket, a waste collecting tank is fixedly arranged on the space adjusting mechanism, and an extended scraping plate is fixedly arranged at the opening of the waste collecting tank.

In an alternative embodiment, the interval adjusting mechanism comprises a movable angle plate, a mounting hole, a nut, a screw rod and a long groove hole, wherein the side part of the waste collection groove is fixedly connected with the movable angle plate, the long groove hole is formed in the bracket, the mounting hole is formed in the end part of the movable angle plate, the screw rod is matched with the mounting hole, and the screw rod penetrates through the long groove hole and the mounting hole to be matched with the nut.

In an alternative embodiment, rollers are rotatably connected to the support and freely abut against the outer peripheral surface of the roller to squeeze the slurry attached to the roller into a slurry transition trough below the support.

In an alternative embodiment, a limit hole is formed in the top of the support, a rotating rod is fixedly connected to the roller, a limit ring is sleeved outside the rotating rod, and the outer diameter of the limit ring is larger than the diameter of the limit hole.

In an alternative embodiment, the lifting connection piece comprises a threaded sleeve rod and a threaded connection rod, the threaded sleeve rod is sleeved outside the threaded connection rod, the threaded sleeve rod is fixedly connected with the bracket, the threaded connection rod is connected with the bracket, an adapter bearing is sleeved outside the threaded connection rod, the adapter bearing is fixedly embedded in the bracket, and one end, away from the threaded sleeve rod, of the threaded connection rod is connected with a fixing nut.

In an alternative embodiment, the rotary power source comprises a driving motor and a speed reducer, the driving motor is connected with the speed reducer in a matched mode, and an output shaft of the speed reducer is fixedly connected with the penetrating piece.

Compared with the prior art, the utility model has the advantages that:

according to the device for removing the magnetic substances in the oil-based drilling fluid, provided by the embodiment of the utility model, the lifting connecting piece is used for controlling the lifting of the magnetic parts, the magnetic parts are immersed into the oil-based mud, and the electric power is used for replacing manual driving of the magnetic parts to rotate so as to adsorb the magnetic substances, so that the magnetic efficiency is greatly improved, the time and the labor are saved, and the efficiency of drilling engineering is improved.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:

FIG. 1 is a front view of a device for removing magnetic substances from oil-based drilling fluids according to one embodiment of the present utility model;

FIG. 2 is a side view of a device for removing magnetic substances from oil-based drilling fluids according to one embodiment of the present utility model;

FIG. 3 is a schematic view of a magnetic chuck and a spacing inner frame according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a spacing adjustment mechanism according to an embodiment of the present utility model;

fig. 5 is an enlarged view of a partial structure at a in fig. 4.

In the drawings, the reference numerals and corresponding part names:

the device comprises a 1-bracket, a 201-magnet block, a 202-magnetic missing area, a 301-driving motor, a 302-speed reducer, a 4-penetrating piece, a 501-threaded sleeve rod, a 502-threaded rod, a 503-transfer bearing, a 504-fixing nut, a 6-towing bracket, a 7-roller, an 8-limit inner frame, a 901-movable angle plate, a 902-mounting hole, a 903-nut, a 904-screw rod, a 905-slotted hole, a 11-waste collection tank, a 12-scraping plate, a 13-roller, a 14-slurry transition groove, a 15-limit hole, a 16-rotating rod and a 17-limit ring.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the utility model. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the utility model.

Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 5, a device for removing magnetic substances from oil-based drilling fluids comprises a bracket 1 made of steel, wherein the bracket 1 adopts a frame structure as a supporting structure of the whole device.

The magnetic attraction piece has magnetic property and can attract magnetic substances in the slurry, for example, a magnetic chuck with magnetic attraction property can be adopted.

The rotary power source may be, for example, an assembly structure of the driving motor 301 in combination with the speed reducer 302.

The penetrating piece 4 is fixedly connected with the rotating power source, such as an output shaft of the speed reducer 302 is fixedly connected with the penetrating piece 4.

The bracket 6 is movably embedded in the bracket 1 and can move in the bracket 1.

Lifting connecting piece, one end is connected with the bracket 1 at the top, and the other end is connected with the bracket 6 at the bottom.

Wherein, the penetrating piece 4 penetrates through the magnetic attraction piece, and meanwhile, the end part of the penetrating piece 4 is inserted into the bracket 6, the penetrating piece 4 is in fixed fit with the magnetic chuck, the penetrating piece 4 is in running fit with the bracket 6, and a bearing can be embedded in the bracket 6; the lifting connection may be provided with four around the magnetic disc to stably pull the carriage 6.

When the magnetic chuck is used, the bracket 1 is arranged above the mud transition groove 14, the height of the tray is adjusted by using the lifting connecting piece, most of the magnetic chuck is immersed in oil-based mud in the mud transition groove 14, and the condition that the mud at the front end of the transition groove does not overflow is ensured to be standard. The driving motor 301 works to drive the penetrating piece 4 to rotate and drive the magnetic chuck to rotate to contact with the slurry, so that magnetic substances in the oil-based slurry are adsorbed on the surface of the magnetic chuck. And after the magnetic attraction is finished, lifting the height of the tray, and removing the magnetic substances.

According to the embodiment of the utility model, the lifting connecting piece is used for controlling the lifting of the magnetic piece, the magnetic piece is immersed in the oil-based mud, and the electric power is used for replacing manual driving of the magnetic piece to rotate to adsorb magnetic substances, so that the magnetic efficiency is greatly improved, the time and the labor are saved, and the efficiency of drilling engineering is improved.

In some embodiments, the magnet is a magnet disc formed by arranging a plurality of magnet blocks 201, the roller 7 is arranged outside the magnet disc, the roller 7 is used for accommodating the plurality of magnet blocks 201, the magnet blocks 201 can be isolated from oil-based mud, the magnet blocks 201 are prevented from directly contacting the oil-based mud, the magnet attraction effect of the magnet blocks 201 in the continuous use process is improved, and the service life is prolonged. The penetrating member 4 penetrates the drum 7 and is fixedly connected with the drum 7 to drive the drum 7 to synchronously rotate together with the internal magnet blocks 201.

Further, the magnetic chuck has a notch at the edge to form a magnetic deletion area 202, the included angle of the notch is 90 °, and the area of the magnetic deletion area 202 is one fourth of the area of the magnetic chuck. The purpose of this arrangement is to more conveniently remove the magnetic substance adsorbed on the drum 7, scrape the surface of the drum 7 during removal, and when the magnetic substance is concentrated to the notch, the magnetic substance is easily separated from the drum 7 at this point because there is no magnetic attraction effect. In order to avoid movement of the inner magnet blocks 201 due to the gaps in the rotation process, a limiting inner frame 8 is sleeved in the roller 7, the limiting inner frame 8 and the roller 7 are concentric, a missing part matched with the gaps of the magnetic suction disc is arranged on the limiting inner frame 8, and the plurality of magnet blocks 201 are connected and sequentially distributed and limited in the limiting inner frame 8.

In some embodiments, a spacing adjustment mechanism is fixedly arranged on the bracket 6, a waste collecting tank 11 is fixedly arranged on the spacing adjustment mechanism, a scraping plate 12 extending out is fixedly arranged at the opening of the waste collecting tank 11, and the scraping plate 12 is tightly attached to the outer surface of the roller 7 during scraping. The scraping plate 12 is not attached to the drum 7 during magnetic attraction. After the magnetic attraction is completed, the roller 7 ascends, the waste collection tank 11 is adjusted to be close to the roller 7, the scraping plate 12 is attached to the roller 7, the roller 7 is rotated again, magnetic substances are automatically scraped, and the magnetic substances are collected in the waste collection tank 11. Meanwhile, when scraping is needed, after the scraping plate 12 is adjusted to be attached to the roller 7, the roller 7 is rotated for 270 degrees, the gap of the magnetic chuck is just rotated to a gap to a discharging area, and the magnetic substance can be scraped off and falls into the waste collecting tank 11 by the scraping plate 12 due to no magnetism.

In some embodiments, the spacing adjustment mechanism includes a movable corner plate 901, a mounting hole 902, a screw, a nut 903 and a long slot 905, where two sides of the waste collection tank 11 are fixedly connected with four movable corner plates 901, the movable corner plate 901 and the waste collection tank 11 can be integrated in a welding manner, a long slot 905 is formed on the bracket 6, a mounting hole 902 is formed at an end of the movable corner plate 901, the screw 904 is matched with the mounting hole 902, and the screw 904 passes through the long slot 905 and the mounting hole 902 to be matched with the nut 903.

When the pitch is to be adjusted, the nuts 903 are loosened, the screws 904 are removed, the waste collection trough 11 is moved, and then the screws 904 are sequentially passed through the long slots 905 and the mounting holes 902 and tightened by the nuts 903. So that the distance between the scraping plate 12 on the waste collection tank 11 and the surface of the drum 7 can be adjusted.

In some embodiments, a roller 13 is rotatably connected to the bracket 1, and the roller 13 freely abuts against the outer circumferential surface of the roller 7 to squeeze the slurry attached to the roller 7 into a slurry transition groove 14 below the bracket 1. Specifically, a limiting hole 15 can be formed in the top of the bracket 1, a rotating rod 16 is fixedly connected to the roller 13, the diameter of the limiting hole 15 is larger than the outer diameter of the rotating rod 16, a limiting ring 17 is sleeved outside the rotating rod 16, and the outer diameter of the limiting ring 17 is larger than the diameter of the limiting hole 15.

In some embodiments, the lifting connection piece comprises a threaded sleeve rod 501 and a threaded rod 502, the threaded sleeve rod 501 is sleeved outside the threaded rod 502, the threaded sleeve rod 501 is fixedly connected with the bracket 6, the threaded rod 502 is connected with the bracket 1, the adapting bearing 503 is sleeved outside the threaded rod 502, the adapting bearing 503 is fixedly embedded into the bracket 1, one end of the threaded rod 502 far away from the threaded sleeve rod 501 is connected with the fixing nut 504, and the threaded rod 502 protrudes to the outside of the fixing nut 504.

When the magnetic attraction piece needs to be lifted, the threaded rod 502 is rotated, and the threaded sleeve rod 501 is in threaded connection with the threaded rod 502, so that the threaded sleeve rod 501 can move up and down relative to the threaded rod 502, and the height of the magnetic attraction piece is adjusted.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the utility model is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the utility model.

Claims

1. The device for removing the magnetic substances in the oil-based drilling fluid comprises a bracket (1) and is characterized by further comprising a magnetic attraction piece, a rotary power source, a penetrating piece (4), a lifting connecting piece and a bracket (6);

the bracket is characterized in that the bracket (6) is movably embedded into the bracket (1), the rotary power source is arranged in the bracket (6), the rotary power source is fixedly connected with the penetrating piece (4), the penetrating piece (4) penetrates through the magnetic attraction piece to be inserted into the bracket (6), the penetrating piece (4) is fixedly matched with the magnetic attraction piece, the penetrating piece (4) is in running fit with the bracket (6), and one end of the lifting connecting piece is connected with the bracket (1) while the other end is connected with the bracket (6).

2. The device for removing magnetic substances from oil-based drilling fluid according to claim 1, wherein the magnetic attraction member is a magnet disc formed by arranging a plurality of magnet blocks (201), the magnet disc is positioned inside a roller (7), and the penetrating member (4) penetrates through the roller (7) and is fixedly connected with the roller (7).

3. The device for removing magnetic substances from oil-based drilling fluid according to claim 2, wherein the magnet disc is provided with a notch at the edge to form a magnetic missing area (202), a limiting inner frame (8) is sleeved in the roller (7), the limiting inner frame (8) is provided with a missing part matched with the notch, and a plurality of magnet blocks (201) are arranged and limited in the limiting inner frame (8).

4. A cleaning device for magnetic substances in oil-based drilling fluids according to claim 3, characterized in that the angle of the gap is 90 °, and the area of the magnetic field missing zone (202) is one quarter of the area of the magnet disc.

5. The device for removing magnetic substances from oil-based drilling fluid according to any one of claims 2 to 4, wherein a spacing adjustment mechanism is fixedly arranged on the bracket (6), a waste collection tank (11) is fixedly arranged on the spacing adjustment mechanism, and a scraping plate (12) extending out is fixedly arranged at an opening of the waste collection tank (11).

6. The device for removing magnetic substances from oil-based drilling fluid according to claim 5, wherein the distance adjusting mechanism comprises a movable angle plate (901), a mounting hole (902), a nut (903), a screw rod (904) and a long groove hole (905), the side part of the waste collecting groove (11) is fixedly connected with the movable angle plate (901), the long groove hole (905) is formed in a bracket (6), the mounting hole (902) is formed in the end part of the movable angle plate (901), the screw rod (904) is matched with the mounting hole (902), and the screw rod (904) passes through the long groove hole (905) and the mounting hole (902) to be matched with the nut (903).

7. The device for removing magnetic substances from oil-based drilling fluid according to claim 6, wherein a roller (13) is rotatably connected to the bracket (1), and the roller (13) is freely abutted against the outer peripheral surface of the roller (7) so as to squeeze the mud attached to the roller (7) into a mud transition groove (14) below the bracket (1).

8. The device for removing magnetic substances in oil-based drilling fluid according to claim 7, wherein a limit hole (15) is formed in the top of the bracket (1), a rotating rod (16) is fixedly connected to the roller (13), a limit ring (17) is sleeved outside the rotating rod (16), and the outer diameter of the limit ring (17) is larger than the diameter of the limit hole (15).

9. The device for removing magnetic substances from oil-based drilling fluid according to claim 8, wherein the lifting connector comprises a threaded sleeve rod (501) and a threaded rod (502), the threaded sleeve rod (501) is sleeved outside the threaded rod (502), the threaded sleeve rod (501) is fixedly connected with the bracket (6), the threaded rod (502) is connected with the bracket (1), a transfer bearing (503) is sleeved outside the threaded rod (502), the transfer bearing (503) is fixedly embedded into the bracket (1), and a fixing nut (504) is connected to one end, away from the threaded sleeve rod (501), of the threaded rod (502).

10. The device for removing magnetic substances in oil-based drilling fluid according to any one of claims 6-9, wherein the rotary power source comprises a driving motor (301) and a speed reducer (302), the driving motor (301) is connected with the speed reducer (302) in a matched manner, and an output shaft of the speed reducer (302) is fixedly connected with the penetrating piece (4).