CN209817981U - A fishing tool for collecting and collecting strong magnetic chips - Google Patents

Abstract

The utility model is suitable for collecting iron filings such as casing window opening, milling and milling, etc., and can provide a strong magnetic scrap collection and fishing tool with high adsorption efficiency, simple operation, and quick cleaning of iron filings, including variable outriggers, handles, and magnets Cylinder, non-magnetic cylinder, a group of non-magnetic conductors, a group of strong magnets, connecting sleeves and sealing rings, etc. A group of strong magnets are arranged in series with non-magnetic conductors at intervals to ensure that the magnetic force of the magnet group is evenly distributed, the contact area is large, and the adsorption is more efficient; the variable legs are equilateral triangle-shaped plates, and the distance between the center of the hole and the three sides is different. When choosing different placement surfaces, you can get different placement heights of the magnet cylinder; the outriggers are inserted at both ends of the magnet cylinder, and the handle is connected to it through threads, which are equivalent to set screws, fastening the magnet cylinder and the outriggers, so that the Loosen the handle thread to quickly disassemble the outrigger and magnet barrel to quickly clean up the collected iron filings.

Description

A fishing tool for collecting and collecting strong magnetic chips

technical field

The utility model relates to a tool for collecting and salvaging drilling fluid mixed with iron filings in the field of oil and gas exploration and development drilling engineering, in particular to a strong magnet scrap collecting and fishing tool for efficiently collecting and salvaging and quickly cleaning the obtained iron filings.

Background technique

In the process of establishing a wellbore in oil and gas exploration and development, based on the purpose of reducing costs and increasing efficiency, the process of using old wellbores or sharing existing wellbores to build new wellbores is often adopted. The necessary operations of this process are casing window opening or casing section milling. , Except for a very small part of the iron filings produced during the casing breaking process, which sinks to the bottom of the well, the rest of the iron filings are mixed into the drilling fluid and returned to the wellhead together. Iron filings vary in size and shape. Larger-sized iron filings can be cleaned out of the drilling fluid after being treated by a vibrating screen. Smaller-sized iron filings can still stay in the drilling fluid after being processed by a multi-stage solids control system. Pollution to drilling fluid. The main hazard of small-sized iron filings mixed in the drilling fluid is to interfere with the downhole magnetic measurement and control instrument. When the drilling fluid containing iron filings flows through the magnetic instrument, it will be adsorbed and accumulated in the relevant position of the magnetic instrument, which will interfere with the measurement accuracy and signal transmission of the instrument, and cause the instrument to fail. , Larger-sized iron filings are stuck on the vibrating screen due to irregular shapes, which will damage the vibrating screen or reduce the working efficiency of the vibrating screen. With the advancement of drilling technology, the use of tools and instruments while drilling has become the basic configuration of drilling operations. Removing iron filings generated by various operations is the basic procedure of the operation process and the basic requirement for drilling fluid treatment.

The salvage of iron filings in the current drilling operation is mainly carried out at the transitional position between the wellhead diversion groove and the vibrating screen. By placing a strong magnet in the drilling fluid flow to absorb the iron filings in the liquid flow, the collection and salvage of iron filings is not complete, and the iron filings Low cleaning efficiency, poor operating environment for personnel, non-standard and non-standard salvage operations, etc.

Utility model content

The technical problem to be solved by the utility model is: aiming at the deficiencies of the prior art, to provide a strong magnet chip collecting and fishing tool that has high adsorption efficiency, is easy to use, and can quickly clean the adsorbed iron chips.

In order to achieve the above object, the technical solution adopted by the utility model to solve the technical problems is:

The utility model relates to a fishing tool for collecting strong magnet chips, which comprises a variable outrigger, a handle, a magnet cylinder, a non-magnetic cylinder, a group of non-magnetic conductors, a group of strong magnets and a connecting sleeve. Among them: a group of short cylinder-shaped strong magnets are arranged in series with cylindrical non-magnetic conductors at intervals in the middle, placed in the magnet cylinder, both ends are limited by retaining rings, the magnetic pole axis of a single strong magnet coincides with the axis of the magnet cylinder, and the non-magnetic conductors Placed in the middle of a single strong magnet to block the connection of the magnetic force lines of adjacent single strong magnets, so that the magnetic force lines of a single strong magnet are closed end to end, thereby maintaining the uniform distribution of the magnetic force of the entire group of strong magnets, large contact area, and more efficient adsorption. The connecting sleeves are respectively inserted at both ends of the magnet cylinder, and the handles are connected with the connecting sleeves through threads, which are equivalent to set screws to fasten the magnet cylinder and the connecting sleeves. The outside of the magnet cylinder is made of non-magnetic metal material or plastic.

The variable supporting leg mentioned in the utility model is an equilateral triangular shape plate with rounded tip and a connecting hole in the middle. The distance between the center of the hole and the three sides is not equal. Round hole logo, the largest diameter of the round hole marks the largest distance between sides, and vice versa, the tool can be placed on different placement surfaces to obtain different placement heights of the magnet cylinder.

The connecting sleeve mentioned in the utility model is a sleeve-shaped rotary body, with grooves on the inside for placing sealing rings, and steps on the outside. The steps are vertical to the shaft and radially arranged with 3 threaded holes, and the connecting sleeve is welded to the variable leg. The direction of the threaded hole is perpendicular to the relative supporting surface of the variable outrigger.

The non-magnetic cylinder mentioned in the utility model is a thin-walled barrel-shaped body, with outrigger shields at both ends, and the whole is made of non-magnetic metal material or plastic. And the shape fits the handle to remove the magnet. The built-in sealing ring of the connection sleeve prevents the inside of the magnet cylinder from being polluted by the outside.

The utility model mentions a strong magnet debris collection and fishing tool. Its use process is: according to the size and shape of the transition position between the diversion groove and the vibrating screen, as well as the mud flow, select the appropriate height of the strong magnet and the number of tools. The tools are placed in the mud flow in groups to efficiently absorb iron filings of various sizes mixed with the mud. The adsorbed iron filings are gathered on the outer wall of the non-magnetic cylinder. The iron filings adsorbed on the outer wall of the barrel lose their magnetic force and fall off completely, and the fishing operation can be continued by reassembling the outrigger, the magnet barrel and the non-magnetic barrel.

The utility model has the following beneficial effects:

1. The strong magnet group is composed of a single independent strong magnet, with a large contact area, the magnetic force remains unchanged, and the adsorption is more efficient;

2. The height of the tool leg is variable. By flipping and placing the tool, the required height of the strong magnet can be quickly obtained, which is convenient for the combined use of tools;

3. The disassembly process of the tool is simple. The fastening thread can be loosened by the handle, and the strong magnet can be quickly disassembled. Through the demagnetization force, the iron filings collected by adsorption can be efficiently cleaned.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a structural diagram of the variable outrigger 1 in Fig. 1 .

FIG. 3 is a structural diagram of the connecting sleeve 7 in FIG. 1 .

FIG. 4 is a structural diagram of the non-magnetic cylinder 4 in FIG. 1 .

Above picture: variable outrigger 1, handle 2, magnet tube 3, non-magnetic tube 4, non-magnetic body 5, strong magnet 6, connecting sleeve 7, sealing ring 8, indicating hole 101, connecting hole 102, placement surface 103 , Thread fastening hole 701, sealing groove 702, outrigger shield 401, limit bayonet 402.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Example 1

A fishing tool for collecting strong magnet chips, characterized in that it includes a variable outrigger 1, a handle 2, a magnet cylinder 3, a non-magnetic cylinder 4, a non-magnetic conductor 5, a strong magnet 6 and a connecting sleeve 7; wherein, a set of short Cylindrical strong magnets 6 are arranged in series at intervals in the middle of cylindrical non-magnetic bodies 5, placed in the magnet barrel 3, both ends are limited by stop rings, the magnetic pole axis of a single strong magnet 6 coincides with the axis of the magnet barrel 3, and the non-magnet 5 is placed in the middle of a single strong magnet 6; the two ends of the connecting sleeve 7 are plugged with the two ends of the magnet cylinder 3 respectively; the handle 2 is connected with the connecting sleeve 7 through threads, and the magnet cylinder 3 and the connecting sleeve 7 are fastened; It is a thin-walled non-magnetic cylinder 4.

Example 2

On the basis of the above-mentioned embodiment 1, the variable support leg 1 is an equilateral triangular plate with rounded tip and a connecting hole 102 in the middle. The distance between the center of the hole and the three sides is not equal, and the distance is determined by Placement surface 103 is marked with the mark hole 101 of the position relative to the vertex, and the diameter of mark hole 101 has 3 kinds of sizes, and the magnet cylinder 3 places the height size when marking the opposite side as the place face 103.

Further, the connecting sleeve 7 is a sleeve-shaped rotary body, with a sealing groove 702 inside for placing the sealing ring 8, and a step on the outside, and three threaded fastening holes 701 are evenly distributed in the step in the radial direction of the sleeve shaft, and the connecting sleeve 7 It is welded to the variable support leg 1, and the direction of the threaded fastening hole 701 is the same as that of the sharp corner of the variable support leg 1.

Further: the non-magnetic cylinder 4 is a thin-walled barrel-shaped body, made of non-magnetic metal material or plastic, with leg shields 401 with larger diameters at both ends, and a limit position on each leg shield 401 The size and shape of the bayonet socket 402 are matched with the handle 2 .

The connecting sleeve 7 has a built-in sealing ring 8 .

typical embodiment 3

As shown in Figure 1, a fishing tool for collecting strong magnet chips includes a variable outrigger 1, a handle 2, a magnet cylinder 3, a non-magnetic cylinder 4, a non-magnetic conductor 5, a strong magnet 6, a connecting sleeve 7 and a sealing ring 8 . A group of short cylindrical strong magnets 6 are arranged in series with cylindrical non-magnetic conductors 5 at intervals in the middle, placed in the magnet barrel 3, both ends are limited by retaining rings, and the magnetic pole axis of a single strong magnet 6 coincides with the axis of the magnet barrel 3, The non-magnetic body 5 is placed in the middle of a single strong magnet 6 to block the communication of the magnetic force lines of adjacent single strong magnets, so that the magnetic force lines of a single strong magnet are closed end to end, thereby maintaining the uniform distribution of the magnetic force of the whole group of strong magnets, large contact area, and more efficient adsorption. The connecting sleeve 7 is welded and fixedly connected with the variable leg 1, respectively inserted at both ends of the magnet cylinder 3, the handle 2 is connected with the connecting sleeve 7 through threads, and is equivalent to a set screw, and the magnet cylinder 3 and the connecting sleeve 7 are fastened to connect. Cover 7 has a built-in sealing ring 8 to prevent the inside of the magnet cylinder 3 from being polluted by the outside, and the outside of the magnet cylinder 3 is a thin-walled non-magnetic cylinder 4 .

As shown in FIG. 2 , the variable support leg 1 is an equilateral triangular plate with rounded tips and a connecting hole 102 in the middle. The distance between the center of the hole and the three sides is not equal. Relative to the mark hole 101 mark of the top corner position, the largest diameter of the hole marks the largest distance to the side, and vice versa the smallest, and the different placement surfaces 103 of the tool can be used to obtain different placement heights of the magnet cylinder.

As shown in Figure 3, the connecting sleeve 7 is a sleeve-shaped rotary body, with a sealing groove 702 inside for placing the sealing ring 8, and a step on the outside. The sleeve is welded to the variable support leg, and the direction of the threaded fastening hole 701 is the same as the direction of the sharp corner of the variable support leg 1.

As shown in Figure 4, the non-magnetic cylinder 4 is a thin-walled barrel, with leg shields 401 at both ends, the whole is made of non-magnetic metal material or plastic, and each of the two ends of the leg shields 401 has a limiter. The bit bayonet 402 has a size and shape suitable for removing the magnet from the handle.

The utility model mentions a strong magnet chip collection and fishing tool. Its use process is: according to the size and shape of the transition position between the diversion groove and the vibrating screen, and the mud flow, select the appropriate tool placement height and the number of tools, multiple tools Placed in groups in the mud flow, efficient adsorption of mud mixed with iron filings of various sizes, the adsorbed iron filings gather on the outer wall of the non-magnetic cylinder 4, when cleaning the iron filings, unscrew the thread of the handle 2, and disassemble the variable outrigger 1 and the magnet Tube 3, iron filings adsorbed on the outer wall of non-magnetic tube 4 loses magnetic force and falls off completely, reassembles variable support leg 1, magnet tube 3 and non-magnetic tube 4, and tightens handle 2 threads to continue salvage operations.

Claims (5)

1. The utility model provides a fishing tool is collected to strong magnetism iron fillings, characterized by: comprises a variable supporting leg (1), a handle (2), a magnet cylinder (3), a non-magnetic cylinder (4), a non-magnetic body (5), a strong magnet (6) and a connecting sleeve (7); cylindrical non-magnetizers (5) are serially arranged in the middle of a group of short cylindrical strong magnets (6) at intervals and are placed in a magnet cylinder (3), two ends of the group of short cylindrical strong magnets are limited by retaining rings, the axis of the magnetic pole of a single strong magnet (6) is superposed with the axis of the magnet cylinder (3), and the non-magnetizer (5) is placed in the middle of the single strong magnet (6); two ends of the connecting sleeve (7) are respectively in inserting fit with two ends of the magnet barrel (3); the handle (2) is connected with the connecting sleeve (7) through threads and fastens the magnet cylinder (3) and the connecting sleeve (7); a non-magnetic cylinder (4) is arranged outside the magnetic cylinder (3); the magnetism-free cylinder (4) is made of nonmagnetic metal materials or plastics.

2. The strong magnetic iron scrap collecting and fishing tool as claimed in claim 1, which is characterized in that: variable landing leg (1) is equilateral triangle shape board, and most advanced radius, middle connecting hole (102) of not running through, hole central point puts and trilateral distance inequality, and apart from the size by arranging sign round hole (101) sign in the relative apex angle position of face of placing (103), sign round hole (101) diameter has 3 kinds of sizes, and magnet section of thick bamboo (3) are placed high size when the sign opposite side is as face of placing (103).

3. The strong magnetic iron scrap collecting and fishing tool according to claim 1 or 2, characterized in that: the connecting sleeve (7) is a sleeve-shaped revolving body, a sealing groove (702) is arranged on the inner side and used for placing a sealing ring (8), a step is arranged on the outer side, 3 threaded fastening holes (701) are uniformly distributed in the step and are vertical to the radial direction of a sleeve shaft, the connecting sleeve (7) is in welded connection with the variable supporting leg (1), and the direction of the threaded fastening holes (701) is the same as the direction of the sharp corner of the variable supporting leg (1).

4. The strong magnetic iron scrap collecting and fishing tool as claimed in claim 3, which is characterized in that: the magnetism-free cylinder (4) is a thin-wall barrel-shaped body, two ends of the magnetism-free cylinder are provided with supporting leg shields (401) with larger diameters, each supporting leg shield (401) is provided with a limiting bayonet (402), and the size and the shape of the limiting bayonet are matched with those of the handle (2).

5. The strong magnetic iron scrap collecting and fishing tool as claimed in claim 4, which is characterized in that: the connecting sleeve (7) is internally provided with a sealing ring (8).