Feeding device of bactericide for petroleum fracturing

Abstract

The utility model discloses a feeding device of a bactericide for petroleum fracturing. The feeding device comprises a linear motor, a first pipeline, a second pipeline, a hose, a metering pump, an ultrasonic nebulizer, a booster pump and a stirring device, according to the sterilizing device, only the sterilizing agent storage barrel needs to be placed below the linear motor, then the first pipeline can be driven to be inserted into the uncovered storage barrel through vertical movement of the guide block of the linear motor, and then the sterilizing agent can be quantitatively extracted through the metering pump; after being atomized by the ultrasonic atomizer, the bactericide is conveyed into the stirring device to be stirred and mixed with the fracturing fluid under the action of the booster pump; compared with the prior art, the bactericide can be accurately metered through the metering pump; and the bactericide and the fracturing fluid can be stirred more uniformly through the stirring device, and the stirring efficiency is higher. In addition, the bactericide is mixed with the fracturing fluid after being atomized by the ultrasonic atomizer, so that the bactericide and the fracturing fluid are mixed more uniformly.

Description

TECHNICAL FIELD

[0001] The utility model relates to bactericide feeding technology field especially, a kind of bactericide's feeding device for oil fracturing. BACKGROUND

[0002] In oilfield fracturing operation, bactericide needs to be used, and the bactericide used for fracturing can effectively kill bacteria in plant gum fracturing fluid and inhibit its growth and reproduction, so that the fracturing fluid maintains high viscosity during storage, and the growth of bacteria in water-based fluid injected into oil layer is suppressed, with characteristics of high efficiency, low toxicity, good water solubility and the like. In the existing technology, the storage cylinder containing bactericide is generally poured by machine or manually during the bactericide feeding process. However, this pouring method cannot accurately measure the bactericide feeding. In addition, the bactericide and fracturing fluid are generally stirred manually in the prior art, and the uniformity and efficiency of stirring are low.

[0003] Therefore, it is necessary to develop a bactericide feeding device for oil fracturing to solve the above problems. SUMMARY

[0004] The utility model aims to solve the above problems by designing a bactericide feeding device for oil fracturing.

[0005] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0006] The bactericide feeding device for oil fracturing comprises:

[0007] A linear motor is vertically installed above the bactericide storage barrel.

[0008] A first pipeline is vertically installed.

[0009] A second pipeline is connected to the upper end of the first pipeline and the first end of the second pipeline, and the lower end of the first pipeline is inserted into the bactericide storage barrel. The second pipeline is transversely fixedly installed on the guide block of the linear motor.

[0010] A hose is arranged along the drag chain of the linear motor, and the second end of the second pipeline is connected to the first end of the hose.

[0011] A metering pump is connected to the second end of the hose.

[0012] An ultrasonic atomizer is connected to the outlet of the metering pump.

[0013] A booster pump is connected to the outlet of the ultrasonic atomizer.

[0014] The outlet of the booster pump is connected with the inlet of the stirring device, and the stirring device comprises a stirring barrel, a feeding pipe for feeding the fracturing fluid is arranged above the side wall of the stirring barrel, and a discharging pipe for discharging the sterilizing agent mixed with the uniform fracturing fluid is arranged below the side wall of the stirring barrel.

[0015] The utility model discloses the beneficial effects are:

[0016] In the application, only need to place the sterilizing agent storage barrel below the linear motor, then the first pipeline can be inserted into the storage barrel after uncapping by the up-down movement of the guide block of the linear motor, then the sterilizing agent can be quantitatively extracted by the metering pump, atomized by the ultrasonic atomizer, and then transported into the stirring device by the action of the booster pump and mixed with the fracturing fluid, compared with the prior art sterilizing agent feeding, the sterilizing agent can be accurately measured by the metering pump, and the sterilizing agent and the fracturing fluid can be more uniformly stirred by the stirring device, and the stirring efficiency is higher. In addition, the sterilizing agent is atomized by the ultrasonic atomizer and then mixed with the fracturing fluid, so that the mixing of the sterilizing agent and the fracturing fluid is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the application;

[0018] Figure 2 It is the structural schematic diagram of the screw hole in the application;

[0019] Figure 3 It is the structural schematic diagram of the seventh pipeline in the application;

[0020] Figure 4 It is the layout structural schematic diagram of the jet pipe in the application;

[0021] Figure 5 It is the structural schematic diagram of the jet pipe in the application.

[0022] Legend: 1 - bottom plate, 2 - positioning groove, 3 - first support seat, 4 - top plate, 5 - guide rail, 6 - guide block, 7 - first motor, 8 - screw rod, 9 - mounting seat, 10 - screw hole, 11 - clamping buckle, 12 - drag chain, 13 - storage barrel, 14 - first pipeline, 15 - second pipeline, 16 - third pipeline, 17 - metering pump, 18 - fourth pipeline, 19 - ultrasonic atomizer, 20 - fifth pipeline, 21 - booster pump, 22 - sixth pipeline, 23 - seventh pipeline, 24 - eighth pipeline, 25 - second support seat, 26 - stirring barrel, 27 - second motor, 28 - stirring rod, 29 - stirring paddle, 30 - feeding pipe, 31 - discharging pipe, 32 - jet pipe. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figure 1 As shown, the feeding device for the bactericide used in oil fracturing includes:

[0031] Linear motor; the linear motor is vertically installed above the sterilizing agent storage barrel 13;

[0032] First pipeline 14; the first pipeline 14 is vertically installed;

[0033] Second pipeline 15; the upper end of the first pipeline 14 is connected with the first end of the second pipeline 15, the lower end of the first pipeline 14 is used for inserting into the sterilizing agent storage barrel 13, and the second pipeline 15 is transversely fixedly installed on the guide block 6 of the linear motor;

[0034] Hose; the hose is arranged along the drag chain 12 of the linear motor, and the second end of the second pipeline 15 is connected with the first end of the hose;

[0035] Metering pump 17; the second end of the hose is connected with the first end of the third pipeline 16, and the second end of the third pipeline 16 is connected with the inlet of the metering pump 17;

[0036] Ultrasonic atomizer 19; the outlet of the metering pump 17 is connected with the first end of the fourth pipeline 18, and the second end of the fourth pipeline 18 is connected with the inlet of the ultrasonic atomizer 19;

[0037] Booster pump 21; the outlet of the ultrasonic atomizer 19 is connected with the first end of the fifth pipeline 20, and the second end of the fifth pipeline 20 is connected with the inlet of the booster pump 21;

[0038] Agitating device; the outlet of the booster pump 21 is connected with the inlet of the agitating device, the agitating device comprises an agitating barrel 26, a feeding pipe 30 for fracturing fluid feeding is arranged above the side wall of the agitating barrel 26, and a discharging pipe 31 for discharging the agitating uniform fracturing fluid and sterilizing agent is arranged below the side wall of the agitating barrel 26.

[0039] As shown in Figure 1 , the feeding device further comprises a bottom plate 1, a first support seat 3 and a top plate 4, the top plate 4 is installed above the first support seat 3, the bottom plate 1 is installed at the first side of the bottom of the first support seat 3, the storage barrel 13 is placed on the bottom plate 1, and the length of the first side of the top plate 4 located on the first support seat 3 is shorter than the length of the bottom plate 1.

[0040] As shown in Figure 1 , the bottom plate 1 is provided with a positioning groove 2 above, the circumferential dimension of the positioning groove 2 is slightly larger than the circumferential dimension of the storage barrel 13, the bottom of the storage barrel 13 is placed in the positioning groove 2, and one end of the top plate 4 is located directly above the positioning groove 2.

[0041] As shown in Figure 1 and 2As shown in the figure, the linear motor comprises a guide rail 5, a mounting base 9, a first motor 7, and a screw rod 8. The guide rail 5, the first motor 7, and the screw rod 8 are vertically arranged. A guide block 6 is slidably mounted on the guide rail 5. The lower end of the guide rail 5 is mounted on the top plate 4. The first motor 7 is mounted on the upper end of the first side of the guide rail 5. The mounting base 9 is mounted on the lower end of the first side of the guide rail 5. A threaded hole 10 is vertically arranged on the guide block 6. The screw rod 8 is threadedly connected with the threaded hole 10. The upper end of the screw rod 8 is connected with the rotating shaft of the motor. The lower end of the screw rod 8 is rotatably mounted in the mounting base 9 through a bearing. One end of a drag chain 12 is connected with one side of the guide block 6. The other end of the drag chain 12 is connected with one side of the upper end of the guide rail 5.

[0042] As shown in the figure, Figure 1 The second pipeline 15 is fixed on the guide block 6 through the clamp 11. The clamp 11 comprises a U-shaped clamping plate and a plurality of bolts. The second pipeline 15 is arranged in the groove of the U-shaped clamping plate. Then the U-shaped clamping plate and the guide block 6 are connected through the plurality of bolts.

[0043] As shown in the figure, Figure 1 The metering pump 17, the ultrasonic atomizer 19, and the booster pump 21 are all mounted on the top plate 4. The lower end of the stirring device is provided with a second support base 25. The second support base 25 is mounted on the top plate 4.

[0044] As shown in the figure, Figure 1 and 3 The feeding device further comprises a sixth pipeline 22, a seventh pipeline 23, and eight eighth pipelines 24. The seventh pipeline 23 is formed in a circular ring shape. The seventh pipeline 23 is sleeved on the second support base 25. The outlet of the booster pump 21 is connected with the first end of the sixth pipeline 22. The second end of the sixth pipeline 22 is connected with the side wall of the seventh pipeline 23. Eight outlets are uniformly arranged on the seventh pipeline 23. The seventh pipeline 23 is connected with the lower ends of the eight eighth pipelines 24 through the eight outlets respectively. The upper ends of the eight eighth pipelines 24 are connected with the lower end of the stirring device.

[0045] As shown in the figure, Figure 1 The stirring device comprises a stirring barrel 26, a second motor 27, a stirring rod 28, and six stirring paddles 29. The second motor 27 is mounted on the top of the stirring barrel 26. The rotating shaft of the second motor 27 is connected with the upper end of the stirring rod 28. The stirring rod 28 penetrates through the top of the stirring barrel 26 and extends into the stirring barrel 26. Six stirring paddles 29 are arranged on the side wall of the stirring rod 28.

[0046] As shown in the figure, Figure 4 and 5 The stirring device comprises eight jet pipes 32. The eight jet pipes 32 are mounted on the bottom of the stirring barrel 26. The eight jet pipes 32 are uniformly distributed around the axis line of the stirring barrel 26.

[0047] As shown in the figure, Figure 4 and 5As shown, the eight jet pipes 32 are all arranged at an angle of 15-45°, and the eight jet pipes 32 are all inclined in the counterclockwise direction.

[0048] When working, first, the guide block 6 is placed on the top of the guide rail 5, at this time, the bottom of the storage barrel 13 is placed in the positioning groove 2, the top cover of the storage barrel 13 is opened, then the first motor 7 works, the rotation of the rotating shaft of the first motor 7 drives the rotation of the screw rod 8, the rotation of the screw rod 8 drives the downward movement of the guide block 6 along the guide rail 5, the guide block 6 drives the first pipeline 14 to be inserted into the storage barrel 13, and the first pipeline 14 is inserted into the bottom of the storage barrel 13, the metering pump 17 works to quantitatively extract the sterilizing agent, the sterilizing agent is sequentially transmitted to the metering pump 17 through the storage barrel 13, the first pipeline 14, the second pipeline 15, the hose, the third pipeline 16, then is sequentially transmitted to the bottom of the stirring barrel 26 through the fourth pipeline 18, the ultrasonic atomizer 19, the fifth pipeline 20, the booster pump 21, the sixth pipeline 22, the seventh pipeline 23, the eighth pipeline 24 and the jet pipe 32, the ultrasonic atomizer 19 is used for atomizing the sterilizing agent into micron-level particles (10-50 μm) through the ultrasonic vibrator, and the sterilizing agent is sprayed to the bottom of the stirring barrel 26 through the action of the booster pump 21, so that the setting can improve the dispersing efficiency of the sterilizing agent and reduce the dosage by 10%-15%, and is suitable for mixing with high-viscosity fracturing fluid (such as a guanidine gum system). The fracturing fluid is sent into the stirring barrel 26 through the feeding pipe 30 in advance, the second motor 27 drives the stirring rod 28 to rotate clockwise, and the stirring paddle 29 stirs the fracturing fluid in the stirring barrel 26 clockwise, at this time, the sterilizing agent is sprayed into the fracturing fluid through the jet pipe 32 counterclockwise, so that the mixing is more violent and sufficient, and the liquid after stirring is directly discharged through the discharge pipe 31 for use.

[0049] The preferred embodiments of the present application are described above, it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, some improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A feeding device for a bactericide used in oil fracturing, characterized in that, include: Linear motor; The linear motor is installed vertically above the disinfectant storage tank; First pipeline; First pipeline installed vertically; The second pipe; the upper end of the first pipe is connected to the first end of the second pipe, the lower end of the first pipe is used to insert into the disinfectant storage tank, and the second pipe is horizontally fixed on the guide block of the linear motor; Hose; the hose is installed along the cable chain of the linear motor, and the second end of the second pipe is connected to the first end of the hose; Metering pump; the second end of the hose is connected to the inlet of the metering pump; Ultrasonic atomizer; the outlet of the metering pump is connected to the inlet of the ultrasonic atomizer; Booster pump; the outlet of the ultrasonic atomizer is connected to the inlet of the booster pump; A mixing device; the outlet of the booster pump is connected to the inlet of the mixing device. The mixing device includes a mixing tank. A feed pipe for fracturing fluid is provided on the upper side wall of the mixing tank, and a discharge pipe for discharging the fracturing fluid and bactericide that are mixed evenly is provided on the lower side wall of the mixing tank.

2. The feeding device for the bactericide used in oil fracturing according to claim 1, characterized in that, The feeding device also includes a base plate, a first support base, and a top plate. The top plate is installed above the first support base, the base plate is installed on the first side of the bottom of the first support base, the storage bucket is placed on the base plate, and the length of the top plate on the first side of the first support base is shorter than the length of the base plate.

3. The feeding device for the bactericide used in oil fracturing according to claim 2, characterized in that, A positioning groove is provided above the bottom plate. The circumferential dimension of the positioning groove is slightly larger than that of the storage bucket. The bottom of the storage bucket is placed in the positioning groove, and one end of the top plate is placed directly above the positioning groove.

4. The feeding device for the bactericide used in oil fracturing according to claim 1, characterized in that, The linear motor includes a guide rail, a mounting base, a first motor, and a screw. The guide rail, the first motor, and the screw are all vertically arranged. A guide block is slidably mounted on the guide rail. The lower end of the guide rail is mounted on a top plate. The first motor is mounted on the upper first side of the guide rail. The mounting base is mounted on the lower first side of the guide rail. A screw hole is vertically provided on the guide block. The screw is threaded into the screw hole. The upper end of the screw is connected to the motor shaft. The lower end of the screw is rotatably mounted in the mounting base. One end of the drag chain is connected to one side of the guide block, and the other end of the drag chain is connected to one side of the upper guide rail.

5. The feeding device for the bactericide used in oil fracturing according to claim 1, characterized in that, The second pipe is fixed to the guide block by a clip.

6. The feeding device for the bactericide used in oil fracturing according to claim 1, characterized in that, The metering pump, ultrasonic atomizer, and booster pump are all mounted on the top plate, and a second support base is provided at the lower end of the stirring device, which is mounted on the top plate.

7. The feeding device for the bactericide used in oil fracturing according to claim 6, characterized in that, The feeding device also includes a sixth pipe, a seventh pipe, and multiple eighth pipes. The seventh pipe is formed into a ring and is fitted onto the second support base. The outlet of the booster pump is connected to the first end of the sixth pipe, and the second end of the sixth pipe is connected to the side wall of the seventh pipe. The seventh pipe has multiple outlets, which are connected to the lower ends of the multiple eighth pipes respectively. The upper ends of the multiple eighth pipes are connected to the lower end of the mixing device.

8. The feeding device for the bactericide used in oil fracturing according to claim 7, characterized in that, The mixing device includes a mixing tank, a second motor, a mixing rod, and multiple mixing paddles. The second motor is installed on the top of the mixing tank, and the shaft of the second motor is connected to the upper end of the mixing rod. The mixing rod extends downward through the top of the mixing tank and into the mixing tank. Multiple mixing paddles are provided on the side wall of the mixing rod.

9. The feeding device for the bactericide used in oil fracturing according to claim 8, characterized in that, The stirring device includes multiple jet tubes, which are installed at the bottom of the stirring tank and are evenly distributed around the center line of the stirring tank.

10. The feeding device for the bactericide used in oil fracturing according to claim 9, characterized in that, Multiple jet tubes are set at an angle of 15-45°, and all multiple jet tubes are tilted in a counterclockwise direction.

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