High-efficient magnetic separation system suitable for particle impact drilling
Technical Field
The utility model belongs to the technical field of the oil drilling technique and specifically relates to a high-efficient magnetic separation piece-rate system suitable for particle impact drilling is related to.
Background
The particle impact drilling technology belongs to a novel front-edge drilling technology in the petroleum exploration industry, and mainly utilizes steel ball particles with the diameter of 1-3 mm to carry out high-speed and high-frequency impact on rocks, and the rocks are quickly crushed by means of instant acting force, so that efficient drilling in hard and difficult-to-drill stratums is realized. The particle impact drilling technology is applied based on a particle impact drilling system, the particle impact drilling system mainly comprises a particle injection system and a particle separation system, wherein the particle separation system is used for separating particles from mixed slurry such as particles, drilling fluid and rock debris returned from the well bottom and injecting the particles into the well bottom again, so that the particle utilization rate is improved, and cyclic utilization is realized.
At present, the following two main ways of separating and recovering particles are available: the first method is vibration type recovery, and utilizes a single-stage or multi-stage vibrating screen to separate particles, drilling fluid, rock debris and other mixed slurry, the mode is simple to realize, but the particles cannot be separated from the rock debris with the same size, and the long-term application can influence the rock breaking efficiency of particle drilling; and secondly, magnetic separation type recovery is carried out, and the particles, drilling fluid, rock debris and other mixed slurry are separated and recovered through a magnetic component by utilizing the characteristic that steel ball particles can be magnetically separated. Compared with the vibration type recovery, the magnetic separation type recovery ensures the particle recovery efficiency and is more suitable for the particle drilling site at the present stage.
When the existing magnetic separation system is used, the mixture returned from a wellhead completely enters a magnetic separator, and particles are accumulated too much in a short time. Often the handling capacity of magnet separator can not match, exceeds the load of magnet separator, causes the damage to the magnet separator, and the magnetic separation effect becomes poor moreover, and particle separation system is whole to be suitable for relatively poor.
SUMMERY OF THE UTILITY MODEL
Technical purpose
The not enough to above-mentioned prior art, the utility model provides a high-efficient magnetic separation piece-rate system suitable for particle impact drilling aims at realizing the adjustable of magnetic separation piece-rate system's supply line flow, matches the throughput of magnet separator, promotes the magnetic separation effect, optimizes particle separation system's whole suitability.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-efficiency magnetic separation system suitable for particle impact drilling comprises a feeding pipeline and a magnetic separator, wherein the feeding pipeline is communicated with the magnetic separator; the magnetic separator is including frame, magnetic separation cell body, magnetic separation section of thick bamboo, feeding case and ejection of compact case, and on the frame was located to the magnetic separation cell body, the magnetic separation section of thick bamboo was located the magnetic separation cell body for carry out the magnetic separation to mixed thick liquids and handle, feeding case and ejection of compact case are located in the frame and are located the both sides of magnetic separation cell body, and feeding case and magnetic separation cell body intercommunication are in order to carry mixed thick liquids in the magnetic separation cell body, and the ejection of compact case is used for receiving the particle of being taken out by the magnetic separation section of.
The high-efficiency magnetic separation system suitable for particle impact drilling further comprises a dynamic flow dividing mechanism and a controller; the dynamic flow dividing mechanism comprises a filtering device, a liquid level monitoring assembly and a circulating tank, the feeding pipeline is communicated with the filtering device, the filtering device is respectively communicated with the magnetic separator and the circulating tank and is used for respectively sending the intact particles obtained by filtering into the magnetic separator for recycling, and sending the broken particles and part of drilling fluid into the circulating tank for recycling; and a throttle valve is arranged between the filtering device and the circulating tank.
The liquid level monitoring subassembly is located the magnet separator, the controller respectively with the liquid level monitoring subassembly with the choke valve electricity is connected in order to realize signal interaction, and the liquid level monitoring subassembly is used for monitoring liquid level in the magnetic separation cell body, the choke valve is used for controlling the flow that gets into the magnet separator, and the controller is used for adjusting the mixed thick liquids flow of aperture in order to control the entering magnetic separation cell body of choke valve according to liquid level signal.
The last butt of magnetic separation section of thick bamboo has the scraper blade ware, and the scraper blade ware is close to go out the workbin and be located a workbin upside for scrape off the particle and make it get into out the workbin.
The utility model discloses the flow that mixed thick liquids got into the magnet separator can be controlled to the choke valve, specifically, be the aperture through control regulation choke valve promptly, the flux that mixes the branch stream management that thick liquids got into filter equipment place in the change feeding line, thereby indirectly change the flux that gets into the mixed thick liquids of magnet separator, avoided having exceeded the load of magnet separator because of the flow is too big, cause the damage to the magnet separator, also avoided the flow undersize and can not reach the effective operational capability of magnet separator, lead to work efficiency to hang down excessively. Of course, the adjustment of the throttle valve needs to be combined with the magnetic separation working condition in the magnetic separator. Therefore, the utility model discloses can ensure that the liquid level is in safety range all the time in the magnet separator, both protect the magnet separator and optimize the magnetic separation throughput again.
Carry out real-time supervision to the mixed thick liquids liquid level of magnetic separation cell body by the liquid level monitoring subassembly, calculate and judge whether its liquid level has reached predetermined height threshold value, reach then the aperture of control regulation choke valve, carry out the adaptability to the flow that gets into the magnet separator and adjust to the mixed thick liquids that keeps in the magnetic separation cell body is in suitable safety range.
The magnetic separation section of thick bamboo is rotating the in-process, can adsorb the particle magnetic separation in the magnetic separation cell body on the magnetic separation section of thick bamboo surface to along with rotating, near the particle is taken to the scraper blade ware, and when the magnetic separation section of thick bamboo rotated again, the particle then was scraped by the scraper blade ware, owing to drive when being rotated by the magnetic separation section of thick bamboo and have inertia, so the particle is got rid of into the workbin.
Further, the liquid level monitoring subassembly includes level sensor, and level sensor locates the magnetic separation cell body for the liquid level in the real-time supervision magnetic separation cell body, level sensor with the controller electricity is connected in order to realize signal interaction.
Further, the liquid level monitoring subassembly includes the high switch of liquid level and the low switch of liquid level, and the high switch of liquid level and the low switch of liquid level all locate the magnetic separation cell body, the position of the high switch of liquid level is higher than the warning of the high switch of liquid level, the low switch of liquid level are used for realizing predetermineeing high low liquid level threshold value respectively, the high switch of liquid level, the low switch of liquid level all with the signal interaction is connected in order to realize to the controller electricity.
Further, the filtering device is a vibrating screen.
Furthermore, a liquid level meter is also led out of the magnetic separator and used for displaying the liquid level in the magnetic separation tank body.
Furthermore, a vibrator is arranged on the discharging box and used for vibrating the discharging box so that the particles can be smoothly discharged from the discharging box.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
the existing magnetic separation system has no regulation mechanism for the flow of the mixed slurry, and a large amount of particles are accumulated in a magnetic separator, so that the working load of the magnetic separator is easily exceeded, the magnetic separator is damaged, and the magnetic separation effect is influenced; the utility model discloses can the mixed thick liquids liquid level in the real-time supervision magnet separator to according to the aperture of the leading choke valve of liquid level adjustment of mixed thick liquids, thereby make the mixed thick liquids in the magnet separator be in an appropriate safe interval, with the magnetic separation ability of ensureing the magnet separator and match with it, realize the steady job, improve work efficiency and economic benefits, and strengthened the suitability of magnetic separation piece-rate system.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the magnetic separator of the present invention;
FIG. 3 is a side view of the magnetic separator of the present invention;
FIG. 4 is a functional block diagram of the present invention;
description of reference numerals: 1-a feeding pipeline; 2-a filtration device; 3-a throttle valve; 4-a magnetic separator; 41-magnetic separation cylinder; 42-a vibrator; 43-a discharge box; 44-magnetic separation trough body; 45-a frame; 46-a feed box; 47-a speed reducer; 48-a motor; 49-scraper means; 51-a liquid level sensor; 52-liquid level high switch; 53-liquid level low switch; 7-a circulation tank; 8-a liquid level meter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides a preferred embodiment of a high-efficiency magnetic separation system suitable for particle impact drilling.
As shown in fig. 1 to 3, the utility model provides a high-efficiency magnetic separation system suitable for particle impact drilling, which comprises a feeding pipeline 1 and a magnetic separator 4, wherein the feeding pipeline 1 is communicated with the magnetic separator 4; magnet separator 4 is including frame 45, magnetic separation cell body 44, magnetic separation section of thick bamboo 41, feeding case 46 and play workbin 43, and magnetic separation cell body 44 is located on frame 45, and magnetic separation section of thick bamboo 41 is arranged in magnetic separation cell body 44 for carry out the magnetic separation to mixed thick liquids and handle, and feeding case 46 and play workbin 43 are located on frame 45 and are located the both sides of magnetic separation cell body 44, and feeding case 46 communicates with magnetic separation cell body 44 and mixes the thick liquids in order to carry in the magnetic separation cell body 44, and play workbin 43 is used for receiving the particle of being taken out by magnetic separation cell body 41. The frame 45 is further provided with a speed reducer 47 and a motor 48, which are linked with the magnetic separation drum 41 to drive the magnetic separation drum 41 to rotate.
Please refer to fig. 1 and 4, further comprising a dynamic flow distribution mechanism and a controller; the dynamic flow dividing mechanism comprises a filtering device (2), a liquid level monitoring assembly and a circulating tank (7), the feeding pipeline (1) is communicated with the filtering device (2), the filtering device (2) is communicated to the magnetic separator (4) and the circulating tank (7) respectively and is used for sending the well-finished particles obtained by filtering into the magnetic separator (4) for recycling, and sending the broken particles and part of drilling fluid into the circulating tank (7) for recycling; a throttle valve (3) is arranged between the filtering device (2) and the circulating tank (7). In this embodiment, the filter device 2 is preferably a vibrating screen having a diameter of 80% of the particle diameter and a vibration frequency of not less than 50 HZ. Of course, other devices may be used for the filter device 2.
The liquid level monitoring subassembly is located magnet separator (4), the controller respectively with the liquid level monitoring subassembly with choke valve (3) electricity is connected in order to realize the signal interaction, and the liquid level monitoring subassembly is used for monitoring liquid level in magnetic separation cell body (44), choke valve (3) are used for controlling the flow that gets into magnet separator (4), and the controller is used for adjusting the mixed thick liquids flow of aperture in order to control entering magnetic separation cell body (44) of choke valve (3) according to liquid level signal.
The throttle valve 3 can control the flow of the mixed slurry entering the magnetic separator 4, specifically, the flux of the stream distribution management of the mixed slurry entering the filtering device 2 in the feeding pipeline 1 is changed by controlling and adjusting the opening of the throttle valve 3, so that the flux of the mixed slurry entering the magnetic separator 4 is indirectly changed, the load of the magnetic separator 4 due to overlarge flow is avoided, the damage to the magnetic separator 4 is avoided, the effective working capacity of the magnetic separator 4 due to too small flow is also avoided, and the working efficiency is too low. Of course, the adjustment of the throttle valve 3 needs to be combined with the magnetic separation operation in the magnetic separator 4. Therefore, the utility model discloses can ensure that the liquid level is in safety range all the time in the magnet separator 4, both protected magnet separator 4 and optimized the magnetic separation throughput again.
Carry out real-time supervision by the mixed thick liquids liquid level of liquid level monitoring subassembly in to magnetic separation cell body 44, calculate and judge whether its liquid level has reached predetermined height threshold value, reach then the aperture of control regulation choke valve 3, carry out the adaptability to the flow that gets into magnet separator 4 and adjust, specifically, reach high liquid level threshold value when the liquid level, then reduce the flow that gets into magnet separator 4, when the liquid level reaches low liquid level, then increase the flow that gets into magnet separator 4, in order to maintain the mixed thick liquids in the magnetic separation cell body 44 in suitable safety range.
Referring to fig. 2 and 3, preferably, a scraper 49 abuts on the magnetic separation cylinder 41, and the scraper 49 is close to the discharge box 43 and located at the upper side of the discharge box 43 and is used for scraping off non-demagnetized particles to enter the discharge box 43. It should be noted that the magnetic separation cylinder 41 can be in a permanent magnetic mode or an electromagnetic mode. The magnetic separation cylinder 41 can magnetically adsorb the particles in the magnetic separation groove 44 on the surface of the magnetic separation cylinder 41 in the rotating process, the particles are brought to the vicinity of the scraper 49 along with the rotation, when the magnetic separation cylinder 41 rotates again, the particles are scraped by the scraper 49, and the particles are thrown into the material feeding box 43 due to inertia of the driving of the magnetic separation cylinder 41.
Referring to fig. 1 and 2, the liquid level monitoring assembly includes a liquid level sensor 51, the liquid level sensor 51 is disposed in the magnetic separation tank 44 and is used for monitoring the liquid level in the magnetic separation tank 44 in real time, and the liquid level sensor 51 is electrically connected with the controller to realize signal interaction. The liquid level monitoring assembly monitors the liquid level in the magnetic separation tank 44 by means of a liquid level sensor 51, which is preferably a continuous type liquid level sensor. When the controller receives a feedback signal that the liquid level sensor 51 reaches a preset high-low liquid level threshold value, the controller modifies and adjusts the opening degree of the throttle valve 3 (if the liquid level is too high, the opening degree is increased, the flow entering the magnetic separator 4 is indirectly reduced, if the liquid level is too low, the opening degree is reduced, and the flow entering the magnetic separator 4 is indirectly increased), and adaptively adjusts the flow entering the magnetic separator 4 so as to maintain the mixed slurry in the magnetic separation groove body 44 within a proper safety range, namely, the particle proportion is within a proper interval, so that the magnetic separation loads of the magnetic separator 4 can be matched, and stable work is realized; of course, the controller can also send a command to the alarm to realize alarm at the preset high and low liquid level threshold values.
Referring to fig. 1 and 2, the liquid level monitoring assembly includes a liquid level high switch 52 and a liquid level low switch 53, the liquid level high switch 52 and the liquid level low switch 53 are both disposed on the magnetic separation tank 44, the position of the liquid level high switch 52 is higher than the liquid level low switch 53, the liquid level high switch 52 and the liquid level low switch 53 are respectively used for realizing the alarm of the preset high and low liquid level threshold values, and the liquid level high switch 52 and the liquid level low switch 53 are both electrically connected with the controller to realize signal interaction. The level high switch 52 and the level low switch 53 can also signal a response alarm and can function as a backup level detection when the level sensor 51 is in a fault condition.
As shown in figure 1, a liquid level meter 8 is further led out from the magnetic separator 4 and used for displaying the liquid level in the magnetic separation groove 44, so that an operator can observe the liquid level change more intuitively.
As shown in fig. 2, the discharging box 43 is provided with a vibrator 42 for vibrating the discharging box 43 to smoothly discharge the particles from the discharging box 43.