Continuous blending device for offshore fracturing fluid

Abstract

An offshore fracturing fluid continuous mixing device comprises a mixing box, a feeding device and a storage box. The mixing box comprises a top cover, a mixing box body, a stirring device and a placing plate; the top cover is arranged at the top of the mixing box body; the stirring device is arranged in the mixing box body; the placing plate is arranged on one side of the mixing box body; a plurality of placing grooves are further formed in the placing plate; the feeding device comprises a storage pipe, a feeding pipe, a discharge port, a quantifying device and an isolation plate; the feeding device is arranged in the placing groove; the feeding pipe is arranged on one side of the storage pipe; the discharging opening is formed in the other side of the feeding pipe and located in the mixing box; one end of the quantifying device is arranged in the material storage pipe in a sliding manner; and the material storage box is arranged at the bottom of the mixing box body. The problem that an existing fracturing fluid mixing device is inconvenient to adjust the composition and proportion of fracturing fluid is solved.

Description

Technical Field

[0001] The utility model relates to the field of fracturing fluid, in particular to an offshore fracturing fluid continuous mixing device. Background Art

[0002] In the process of oil and gas exploration and development, fracturing fluid is the key working fluid for increasing the production and injection of oil and gas wells. It is injected into the formation through a high-pressure pump group to form a fracture network in the formation, improve the permeability and conductivity of the formation, and thus increase the production and injection volume of oil and gas wells. Therefore, the performance of the fracturing fluid directly affects the development effect of the oil and gas well. The composition of the fracturing fluid will also be continuously improved and optimized with different environments, so a device that can adjust the composition of the fracturing fluid and its composition ratio in real time is needed. Utility Model Content

[0003] The utility model aims to provide an offshore fracturing fluid continuous mixing device, which solves the problem that the existing fracturing fluid mixing device is inconvenient to adjust the components and proportions of the fracturing fluid.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] An offshore fracturing fluid continuous mixing device, comprising:

[0006] The mixing box comprises a top cover, a mixing box body, a stirring device and a placement plate; the top cover is arranged on the top of the mixing box body; the stirring device is arranged inside the mixing box body; the placement plate is arranged on one side of the mixing box body; and the placement plate is also provided with a plurality of placement slots;

[0007] The feeding device comprises a material storage pipe, a feeding pipe, a material outlet, a quantitative device and a partition plate; the feeding device is arranged in the placement tank; the feeding pipe is arranged on one side of the material storage pipe; the material outlet is arranged on the other side of the feeding pipe and is located inside the mixing box; one end of the quantitative device is slidably arranged in the material storage pipe;

[0008] A material storage box is arranged at the bottom of the mixing box body.

[0009] The top cover is sealed to the mixing box.

[0010] The stirring device comprises a mounting frame and a stirrer; the mounting frame is connected to the inner wall of the mixing box; and the stirrer is arranged on the mounting frame.

[0011] The top cover is also provided with a pressurizing device.

[0012] A first one-way valve is also provided at the connection between the feeding pipe and the storage pipe.

[0013] A second one-way valve is also provided at the connection between the discharge port and the storage pipe.

[0014] One end of the quantitative device is also provided with a telescopic rod and a partition plate; the fixed end of the telescopic rod is arranged inside the quantitative device, and the movable end thereof is connected to the partition plate; the partition plate is slidably arranged inside the material storage tube.

[0015] A sealing ring is provided at the contact point between the isolation plate and the inner wall of the storage tube.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] 1. The utility model is an offshore fracturing fluid continuous mixing device, and a plurality of placement slots are provided on one side of the mixing box body, which can be used to place a plurality of feeding devices, and each feeding device can provide a component to the mixing box, so as to facilitate the adjustment of the composition of the fracturing fluid.

[0018] 2. The utility model is an offshore fracturing fluid continuous mixing device, which uses a telescopic rod to move the isolation plate in the feeding device, thereby adjusting the internal capacity of the storage pipe, so as to achieve the purpose of timely adjusting the proportion of the components of the fracturing fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the structure of the feeding device;

[0022] Figure 4 It is a partial cross-sectional schematic diagram of the feeding device.

[0023] In the figure, 1-mixing box, 101-placing plate, 102-placing trough, 103-mounting frame, 104-mixer, 105-top cover, 106-pressurizing device, 201-conveying pipe, 202-control valve, 3-feeding device, 301-storage pipe, 302-first one-way valve, 303-feeding pipe, 304-second one-way valve, 305-discharge port, 306-quantitative device, 3061-control console, 3062-telescopic rod, 3063-isolation plate, 4-storage box. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, an offshore fracturing fluid continuous mixing device includes a mixing box, three feeding devices 3 and a storage box 4; the mixing box is hollow inside and is used to mix the fracturing fluid; the storage box 4 is arranged at the bottom of the mixing box and is connected through a delivery pipe 201; the three feeding devices 3 are arranged on one side of the mixing box;

[0027] Specifically, a control valve 202 is also provided on the delivery pipe 201 .

[0028] like Figure 1 and 2 As shown, the mixing box includes a top cover 105, a pressurizing device 106, a mixing box body 1, a mounting frame 103, a mixer 104 and a placement plate 101; the top cover 105 is arranged on the top of the mixing box body 1, and the top cover 105 and the mixing box body 1 are sealed; the placement plate 101 is horizontally arranged on one side of the opening of the mixing box body 1; the placement plate 101 is also provided with 5 placement grooves 102; the mounting frame 103 is connected to the inner wall of the mixing box body 1; the mixer 104 is arranged on the mounting frame 103; the top cover 105 is also provided with a pressurizing device 106 for pressurizing the interior of the mixing box; the mixer 104 is a prior art and is not an improvement of this embodiment, and is not described in detail here.

[0029] like Figure 3 and 4As shown, the feeding device 3 includes a storage pipe 301, a feeding pipe 303, a material outlet 305, a quantitative device 306 and a separation plate 3063; the feeding device 3 is sequentially arranged in the placement tank 102; the storage pipe 301 is horizontally placed, one end of which passes through the top cover 105 and extends into the interior of the mixing box 1; one end of the feeding pipe 303 is arranged at the upper part of the end of the storage pipe 301 extending into the mixing box 1, and a first one-way valve 302 is also provided at the connection point, and the other end of the feeding pipe 303 passes through the top cover 105. The cover 105 is connected to the material supply device; the first one-way valve 302 is connected from the feeding pipe 303 to the storage pipe 301; the discharge port 305 is arranged at the lower part of one end of the storage pipe 301, below the feeding pipe 303, and a second one-way valve 304 is also arranged at the connection; the second one-way valve 304 is connected from the storage pipe 301 to the discharge port 305; the quantitative device 306 is arranged on the end of the storage pipe 301 away from the feeding pipe 303, and is used to control the size of the space inside the storage pipe 301;

[0030] Specifically, the quantitative device 306 is sealedly connected to the material storage tube 301; a telescopic rod 3062 and a separation plate 3063 are provided at one end of the quantitative device 306; the fixed end of the telescopic rod 3062 is arranged inside the quantitative device 306, and the movable end thereof is located inside the material storage tube 301 and connected to the separation plate 3063; the separation plate 3063 is slidably arranged inside the material storage tube 301, so that the separation plate 3063 isolates the side of the material storage tube 301 close to the feeding tube 303 into a relatively closed quantitative space;

[0031] More specifically, a control console 3061 is further provided on the top of the quantitative device 306 for controlling the degree of extension and shortening of the telescopic rod 3062;

[0032] More specifically, a sealing ring is provided at the contact point between the isolation plate 3063 and the inner wall of the storage tube 301 ; and a sealing ring is provided at the connection point between the feeding tube 303 and the top cover 105 .

[0033] The working principle of this embodiment is:

[0034] The utility model discloses an offshore fracturing fluid continuous mixing device. First, a corresponding number of feeding devices 3 are set according to the types of components of the fracturing fluid, and the feeding devices 3 are set in the placement grooves 102 on the placement plate 101. Then, one end of the feeding pipe 303 on the feeding device 303 is connected to the supply device of the corresponding component. Then, at the control console 3061 on the top of the quantitative device 306, the initial position of the telescopic rod 3062 is adjusted to adjust the input amount of each component. Then, the device is started, and the telescopic rod 3062 drives the isolation plate 3063 to move inside the storage pipe 301. The telescopic rod 3062 is extended to move the isolation plate 3063 to the storage pipe 301. 1, the interior of the quantitative space is emptied, and then the telescopic rod 3062 is shortened to the initial position, and the material at the feeding pipe 303 is passed into the quantitative space through the first one-way valve 302; then the telescopic rod 3062 is extended, and the isolation plate 3063 is moved to one end of the storage pipe 301, and the material in the quantitative space is discharged into the mixing box 1 through the second one-way valve 304 and the discharge port 305, and then it is mixed under the action of the pressurizing device 106 and the mixer 104, and then the control valve 202 is opened to make it flow into the storage box 4 for subsequent use, and then the above steps are repeated to continuously mix the fracturing fluid.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A continuous mixing device for offshore fracturing fluid, characterized in that: include: The mixing box comprises a top cover, a mixing box body, a stirring device and a placement plate; the top cover is arranged on the top of the mixing box body; the stirring device is arranged inside the mixing box body; the placement plate is arranged on one side of the mixing box body; and the placement plate is also provided with a plurality of placement slots; The feeding device comprises a material storage pipe, a feeding pipe, a material outlet, a quantitative device and a partition plate; the feeding device is arranged in the placement tank; the feeding pipe is arranged on one side of the material storage pipe; the material outlet is arranged on the other side of the feeding pipe and is located inside the mixing box; one end of the quantitative device is slidably arranged in the material storage pipe; A material storage box is arranged at the bottom of the mixing box body.

2. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: The top cover is sealed to the mixing box.

3. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: The stirring device comprises a mounting frame and a stirrer; the mounting frame is connected to the inner wall of the mixing box; and the stirrer is arranged on the mounting frame.

4. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: The top cover is also provided with a pressurizing device.

5. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: A first one-way valve is also provided at the connection between the feeding pipe and the storage pipe.

6. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: A second one-way valve is also provided at the connection between the discharge port and the storage pipe.

7. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: One end of the quantitative device is also provided with a telescopic rod and a partition plate; the fixed end of the telescopic rod is arranged inside the quantitative device, and the movable end thereof is connected to the partition plate; the partition plate is slidably arranged inside the material storage tube.

8. The offshore fracturing fluid continuous mixing device according to claim 1, characterized in that: A sealing ring is provided at the contact point between the isolation plate and the inner wall of the storage tube.

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