Drill string cleaning device for petroleum machinery

Abstract

The utility model provides a drill string cleaning device for petroleum machinery, which belongs to the technical field of petroleum machinery and comprises a pipe body, an annular sliding groove is arranged on the inner wall of the pipe body, a sliding block is slidably assembled in the annular sliding groove, one side of the sliding block extends out of an opening of the annular sliding groove and is provided with a supporting rod, and the supporting rod is connected with the pipe body. A brush is installed on the side, close to the center shaft of the pipe body, of the supporting rod, and a plurality of evenly-distributed electromagnets are arranged at the positions, corresponding to the annular sliding grooves, of the outer wall of the pipe body. The sliding block is made of magnetic metal; the tube body comprises a left half tube and a right half tube, and the left half tube and the right half tube are detachably connected. By arranging the pipe body, the brush and other structures, when the drill string is disassembled, soil at the drill string and the connecting position of the drill string can be quickly cleaned up, the soil is prevented from falling into the connecting internal thread groove of the drill string during disassembly, and time and labor are effectively saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of petroleum machinery, in particular to a drill string cleaning device for petroleum machinery. Background Art

[0002] Oil drilling rigs drill wells through drill strings. During the drilling process, as the depth increases, the drill strings need to be connected one by one through threads for deep drilling. After the drilling is completed, the drill string needs to be brought out and then disassembled in sections. After the drill string is brought out, the drill string will inevitably be adhered to the soil. During disassembly, some of the soil may fall into the inner thread groove of the drill string connection, affecting the next use. Although when there is a lot of adhered soil, workers will use a shovel to manually clean up the excess soil, this method is slow, ineffective and very laborious. When there is less adhered soil, workers generally do not clean it. If the residual soil falls into the inner thread groove of the drill string connection without cleaning or cleaning it thoroughly, it will cause the drill string to be loosely connected or stuck during disassembly and other adverse effects. For this reason, we propose a drill string cleaning device for oil machinery to clean the soil adhered to the drill string during disassembly. Utility Model Content

[0003] In view of this, the utility model aims to provide a drill string cleaning device for petroleum machinery, which can not only be used to solve the problems existing in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a drill string cleaning device for petroleum machinery includes a tube body, an annular groove is opened on the inner wall of the tube body, a slider is slidably mounted in the annular groove, one side of the slider extends out of the opening of the annular groove and is installed with a support rod, a brush is installed on the side of the support rod close to the central axis of the tube body, and a plurality of evenly distributed electromagnets are arranged on the outer wall of the tube body at positions corresponding to the annular groove; the slider is made of magnetic metal; the tube body includes a left half tube and a right half tube, and the left half tube and the right half tube can be detachably connected.

[0005] Furthermore, the outer sides of the left half pipe and the right half pipe are both connected with hydraulic rods, and one end of the hydraulic rod away from the pipe body is fixedly connected with an assembly rod.

[0006] Furthermore, a plurality of balls are rollingly embedded in the lower end of the sliding block.

[0007] Furthermore, the annular chute opening is arranged to be inclined downward.

[0008] Furthermore, the right end abutment surface of the left half tube is provided with a plurality of conical positioning grooves, and the left end abutment surface of the right half tube is fixedly equipped with a plurality of conical protrusions matching the conical positioning grooves. When the left half tube and the right half tube are fitted together to form a tube body, the conical protrusions can be inserted into the corresponding conical positioning grooves.

[0009] Furthermore, a semi-arc water pipe is respectively arranged at the upper end of the left half pipe and the right half pipe, and the two semi-arc water pipes are symmetrically arranged. A plurality of downward-inclined water spray heads are respectively arranged on one side of the two semi-arc water pipes facing the central axis of the pipe body, and the upper sides of the two semi-arc water pipes are respectively connected with connecting pipes.

[0010] Compared with the prior art, the drill string cleaning device for petroleum machinery described in the utility model has the following advantages:

[0011] (1) The utility model provides a tube body and a brush structure so that when disassembling the drill string, the dirt at the connection can be cleared first, preventing the dirt from falling into the internal thread groove of the drill string during disassembly, thereby avoiding the phenomenon of loose connection of the drill string or jamming during disassembly;

[0012] (2) The utility model can quickly clean the soil on the drill string, effectively saving time and manpower;

[0013] (3) The utility model is also provided with a water spray head. When the brush moves to remove the dirt on the drill string, the water spray head can spray water on the drill string and the brush, thereby washing away the dirt attached to the drill string and the dirt on the brush, making the removal more efficient while ensuring the cleanliness of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0015] Figure 1 The structure of the drilling column cleaning device for petroleum machinery described in the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the drilling column cleaning device for petroleum machinery described in the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 This is a schematic cross-sectional structure diagram of the drill string cleaning device for petroleum machinery according to the utility model;

[0018] Description of reference numerals:

[0019] 100, pipe body; 101, left half pipe; 102, right half pipe; 103, annular slide groove; 104, slider; 105, support rod; 106, brush; 107, electromagnet; 108, ball; 200, semi-arc water pipe; 201, sprinkler head; 202, connecting pipe; 300, conical positioning groove; 301, conical protrusion; 400, hydraulic rod; 401, assembly rod. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0022] Embodiment 1

[0023] like Figure 1-Figure 3 As shown, the utility model is a drill string cleaning device for petroleum machinery, including a tube body 100, and the tube body 100 can be separated into a left half tube 101 and a right half tube 102, that is, the left half tube 101 and the right half tube 102 can be detachably connected. Specifically, the right end abutting surface of the left half tube 101 is provided with a plurality of conical positioning grooves 300, and the left end abutting surface of the right half tube 102 is fixedly equipped with a plurality of conical protrusions 301 matching the conical positioning grooves 300. When the left half tube 101 and the right half tube 102 are fitted to form the tube body 100, the conical protrusions 301 can be inserted into the corresponding conical positioning grooves 300, which can assist the left half tube 101 and the right half tube 102 to fit together, thereby preventing errors in the device during long-term use, resulting in deviations when the left half tube 101 and the right half tube 102 are abutted and fitted. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] An annular groove 103 is provided on the inner wall of the tube body 100, and a slider 104 is slidably installed in the annular groove 103. One side of the slider 104 extends out of the opening of the annular groove 103 and is fixedly installed with a support rod 105. A brush 106 is fixedly installed on the side of the support rod 105 close to the central axis of the tube body 100. A plurality of evenly distributed electromagnets 107 are arranged on the outer wall of the tube body 100 at positions corresponding to the annular groove 103; the slider 104 is made of magnetic metal.

[0025] The tube body 100 is used to wrap the drill string connection that needs to be disassembled. The tube body 100 is set to a left half tube 101 and a right half tube 102 that can be separated from each other, which can facilitate clamping and exiting each time of cleaning. The annular slide groove 103 is used to carry the slider 104, the slider 104 is used to carry the support rod 105, the support rod 105 is used to carry the brush 106, and the brush 106 is used to brush away the dirt at the drill string connection. The electromagnet 107 can generate a magnetic field after being energized, which is used to drive the slider 104 to move in the annular slide groove 103, thereby driving the support rod 105 and the brush 106 to move.

[0026] A plurality of balls 108 are rollingly embedded at the lower end of the slider 104 . The presence of the balls 108 can reduce the friction force of the slider 104 when it moves.

[0027] The opening of the annular chute 103 is tilted downward, so as to prevent the brushed soil from entering the annular chute 103 .

[0028] The outer side of the left half pipe 101 and the outer side of the right half pipe 102 are both connected with hydraulic rods 400, and one end of the hydraulic rod 400 away from the pipe body 100 is fixedly connected with an assembly rod 401. The hydraulic rod 400 is used to drive the left half pipe 101 and the right half pipe 102 to move, and the assembly rod 401 can be assembled and connected to the existing drill string disassembly equipment, or it can be erected alone at the wellhead, and it is set according to the specific environment, which will not be described in detail here.

[0029] In this embodiment, before disassembling the drill string, the left half pipe 101 and the right half pipe 102 are wrapped around the outside of the drill string by the hydraulic rod 400 to form the tube body 100. At this time, the brush 106 is in contact with the drill string, and then the electromagnet 107 is started, so that the electromagnet 107 drives the slider 104 to make a circular motion in the slide groove, thereby driving the support rod 105 and the brush 106 to move, so that the brush 106 can brush off the soil at the connection of the drill string. After brushing off the soil, the tube body 100 is opened by the hydraulic rod 400, the cleaning device is taken out from the wellhead, and then the drill string is disassembled.

[0030] In this embodiment, by providing structures such as the tube body 100 and the brush 106, when disassembling the drill string, the dirt at the connection can be cleared first, preventing the dirt from falling into the internal thread groove of the connection of the drill string during disassembly.

[0031] Embodiment 2

[0032] like Figure 1-Figure 3As shown, based on the first embodiment, the drill string cleaning device for petroleum machinery is further described, the upper ends of the left half pipe 101 and the right half pipe 102 are respectively provided with semi-arc water pipes 200, and the two semi-arc water pipes 200 are symmetrically arranged, and the two semi-arc water pipes 200 are respectively provided with a plurality of downwardly inclined water spray heads 201 on one side of the central axis of the pipe body 100, and the upper sides of the two semi-arc water pipes 200 are respectively connected with connecting pipes 202, and the connecting pipes 202 are externally connected to the existing water pump and water tank, so that water can be sprayed during cleaning.

[0033] In this embodiment, when the brush 106 moves to remove the mud on the drill string, the water pump is started to pump water, so that the sprinkler head 201 can spray water on the drill string and the brush 106, thereby washing away the mud attached to the drill string and the mud on the brush 106, making the removal more efficient while ensuring the cleanliness of the brush 106.

[0034] The above embodiments are only illustrative of the principle and efficacy of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made by anyone familiar with the technology without violating the spirit and scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drill string cleaning device for petroleum machinery, comprising a pipe body (100), characterized in that: An annular groove (103) is provided on the inner wall of the tube body (100), a slider (104) is slidably mounted in the annular groove (103), one side of the slider (104) extends out of the opening of the annular groove (103) and is mounted with a support rod (105), a brush (106) is mounted on the side of the support rod (105) close to the central axis of the tube body (100), and a plurality of evenly distributed electromagnets (107) are arranged on the outer wall of the tube body (100) at positions corresponding to the annular groove (103); the slider (104) is made of magnetic metal; the tube body (100) comprises a left half tube (101) and a right half tube (102), and the left half tube (101) and the right half tube (102) are detachably connected.

2. The drill string cleaning device for petroleum machinery according to claim 1, characterized in that: The outer sides of the left half pipe (101) and the right half pipe (102) are both connected to hydraulic rods (400), and one end of the hydraulic rod (400) away from the pipe body (100) is fixedly connected to an assembly rod (401).

3. The drill string cleaning device for petroleum machinery according to claim 1, characterized in that: A plurality of balls (108) are rotatably embedded at the lower end of the slider (104).

4. The drill string cleaning device for petroleum machinery according to claim 3, characterized in that: The opening of the annular sliding groove (103) is arranged to be inclined downward.

5. The drill string cleaning device for petroleum machinery according to claim 1, characterized in that: The right end abutment surface of the left half tube (101) is provided with a plurality of conical positioning grooves (300), and the left end abutment surface of the right half tube (102) is fixedly equipped with a plurality of conical protrusions (301) matching the conical positioning grooves (300); when the left half tube (101) and the right half tube (102) are fitted together to form the tube body (100), the conical protrusions (301) can be inserted into the corresponding conical positioning grooves (300).

6. The drill string cleaning device for petroleum machinery according to any one of claims 1 to 5, characterized in that: The upper ends of the left half pipe (101) and the right half pipe (102) are respectively provided with a semi-arc water pipe (200), and the two semi-arc water pipes (200) are symmetrically arranged. A plurality of downwardly inclined water spray heads (201) are respectively arranged on one side of the two semi-arc water pipes (200) facing the central axis of the pipe body (100), and the upper sides of the two semi-arc water pipes (200) are respectively connected with a connecting pipe (202).

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