CN216922098U

CN216922098U - Accurate measurement discharging device of fracturing sand

Info

Publication number: CN216922098U
Application number: CN202220768136.7U
Authority: CN
Inventors: 杨勇
Original assignee: Jiangchang Qianjiang Oilfield Industry Co ltd
Current assignee: Jiangchang Qianjiang Oilfield Industry Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-08
Anticipated expiration: 2032-04-01

Abstract

The utility model belongs to the technical field of oil well treatment, and particularly relates to a fracturing sand accurate metering and discharging device. A metering cavity is arranged in the fracturing sand metering shell, an upper port of the metering cavity corresponds to the discharge port, a fixed limiting plate is arranged on the right side of the discharge port, and the fixed limiting plate is welded on the surface of the central fixed shaft and the inner wall of the metering cavity respectively; and the middle of the back of the fixed limiting plate is fixed with a jar; the outer side of the central fixed shaft is movably connected with a movable metering plate, the inner side of the top end of the movable metering plate is fixedly provided with a stroke motor, and the stroke motor is meshed with a tooth groove in the metering cavity through a tooth disc. The device adopts a rotary metering cavity with an adjustable inner cavity to accurately meter and discharge fracturing sand discharge; the quality of pressurizing and filling fracture is guaranteed, and fracturing accidents caused by inaccurate fracturing sand discharging are avoided.

Description

Accurate measurement discharging device of fracturing sand

Technical Field

The utility model belongs to the technical field of oil well treatment, and particularly relates to a fracturing sand accurate metering and discharging device.

Background

Along with the development of oil and gas fields, the fracturing well completion process plays an important role in unconventional oil and gas development of compact oil and gas wells, shale oil and gas wells, coal bed gas and the like, is also an effective means for increasing the yield and efficiency of old oil fields, but the quality of the fracturing construction quality is directly related to the development effect of the oil and gas reservoirs. Factors influencing the fracturing construction quality include the fracturing truck group equipment, the operation construction quality, the fracturing fluid quality, the quality of a propping agent (commonly called fracturing sand), and the real-time sand concentration and the sand amount of the fracturing sand actually added in the fracturing process. Therefore, the fracturing sand discharging measurement is very important, and the accurate fracturing sand measuring and discharging device is provided.

SUMMERY OF THE UTILITY MODEL

Aiming at solving the defects and the deficiency problems of the prior art; the utility model aims to provide a fracturing sand accurate metering and discharging device which is simple in structure, reasonable in design and convenient to use, and adopts a rotary metering cavity with an adjustable inner cavity to accurately meter and discharge fracturing sand discharge; the quality of pressurizing and filling fracture is guaranteed, and fracturing accidents caused by inaccurate fracturing sand discharging are avoided.

In order to achieve the purpose, the utility model adopts the technical scheme that: the fracturing sand measuring device comprises a fracturing sand measuring shell, a feeding connecting seat, a sand storage tank, a feeding hole, a discharging hole, a measuring cavity, a central fixed shaft, a fixed limiting plate, a jar, a movable measuring plate and a stroke motor; the upper end of the fracturing sand metering shell is connected with a feeding connecting seat, and the feeding connecting seat is connected with the bottom of the sand storage tank; a feed inlet is formed at the joint of the fracturing sand metering shell and the feed connecting seat, and a discharge outlet is formed right below the fracturing sand metering shell; a metering cavity is arranged in the fracturing sand metering shell, an upper port of the metering cavity corresponds to the discharge port, a fixed limiting plate is arranged on the right side of the discharge port, and the fixed limiting plate is welded on the surface of the central fixed shaft and the inner wall of the metering cavity respectively; and the middle of the back of the fixed limiting plate is fixed with a jar; the outer side of the central fixed shaft is movably connected with a movable metering plate, the inner side of the top end of the movable metering plate is fixedly provided with a stroke motor, and the stroke motor is meshed with a tooth groove in the metering cavity through a tooth disc.

Preferably, the movable metering plate is driven by a stroke motor to rotate, and the space between the movable metering plate and the fixed limiting plate is adjusted to change the metering space.

Preferably, the stroke distance of the stroke motor corresponds to the metering space of the inner cavity of the metering cavity.

Preferably, the metering cavity is coaxially connected with a rotating motor fixed on the outer side of the fracturing sand metering shell, so that the rotary discharging of the metering cavity is realized.

Preferably, the inner side of the movable metering plate is movable on the central fixed shaft through two groups of rotating shafts.

Preferably, the outer edge of the movable metering plate is wrapped with a sealing buffer rubber sheet.

After adopting the structure, the utility model has the beneficial effects that: the device adopts a rotary metering cavity with an adjustable inner cavity to accurately meter and discharge fracturing sand discharge; the quality of pressurizing and filling fracture is guaranteed, and fracturing accidents caused by inaccurate fracturing sand discharging are avoided.

Drawings

To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail by the following specific embodiments and the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side schematic view of the present invention;

FIG. 3 is a schematic view of the deployment of the inner cavity of the metering chamber 6 of the present invention;

description of reference numerals: fracturing sand measurement casing 1, feeding connecting seat 2, storage sand jar 3, feed inlet 4, discharge gate 5, measurement chamber 6, central fixed axle 7, fixed limiting plate 8, jar 9, activity metering plate 10, stroke motor 11, rotating electrical machines 12, rotation axis 13.

Detailed Description

In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.

Referring to fig. 1 to fig. 3, the following technical solutions are adopted in the present embodiment: the fracturing sand measuring device comprises a fracturing sand measuring shell 1, a feeding connecting seat 2, a sand storage tank 3, a feeding hole 4, a discharging hole 5, a measuring cavity 6, a central fixed shaft 7, a fixed limiting plate 8, a jar 9, a movable measuring plate 10 and a stroke motor 11; the upper end of the fracturing sand metering shell 1 is connected with a feeding connecting seat 2, and the feeding connecting seat 2 is connected with the bottom of a sand storage tank 3; a feed inlet 4 is arranged at the joint of the fracturing sand metering shell 1 and the feed connecting seat 2, and a discharge outlet 5 is arranged right below the fracturing sand metering shell 1; a metering cavity 6 is arranged inside the fracturing sand metering shell 1, the upper port of the metering cavity 6 is corresponding to the discharge port 5, a fixed limiting plate 8 is arranged on the right side of the discharge port 5, and the fixed limiting plate 8 is welded on the surface of the central fixed shaft 7 and the inner wall of the metering cavity 6 respectively; and the middle of the back of the fixed limiting plate 8 is fixed with a jar 9; the outer side of the central fixed shaft 7 is movably connected with a movable metering plate 10, the inner side of the top end of the movable metering plate 10 is fixedly provided with a stroke motor 11, and the stroke motor 11 is meshed with a tooth groove in the metering cavity 6 through a fluted disc.

The movable metering plate 10 is driven by a stroke motor 11 to rotate, and the space between the movable metering plate 10 and the fixed limiting plate 8 is adjusted to change the metering space; the stroke distance of the stroke motor 11 is corresponding to the metering space in the metering cavity 6. The variable angle space between the movable metering plate 10 and the fixed restrictor plate 8 is used for metering usage.

In addition, the metering cavity 6 is coaxially connected with a rotating motor 12 fixed on the outer side of the fracturing sand metering shell 1, so that the rotary discharging of the metering cavity 6 is realized; the inner side of the movable metering plate 10 is movably arranged on the central fixed shaft 7 through two groups of rotating shafts 13; the outer edge of the movable metering plate 10 is wrapped with a sealing buffer rubber sheet. The metering cavity 6 rotates under the action of the rotating motor 12, and an inlet at the upper end of the metering cavity 6 rotates downwards to the discharge port 5 to realize discharge.

Further, the jar 9 keeps the fracturing sand compact through the mode of vibration, avoids the hollowing.

The working principle of the specific implementation mode is as follows: fracturing sand enters the feeding connecting seat 2 from the bottom of the sand storage tank 3 and is guided into a metering cavity in the metering cavity 6 through the feeding hole 4, wherein the capacity of the metering cavity in the metering cavity 6 can be adjusted through the movable metering plate 10, and the movable metering plate 10 rotates along the central fixed shaft 7 under the action of the stroke motor 11, so that the metering space between the movable metering plate 10 and the fixed limiting plate 8 is changed; in the feeding process, the jar 9 synchronously vibrates to keep the fracturing sand compact; after the metering cavity 6 is filled with the metering cavity, the rotating motor 12 drives the metering cavity 6 to integrally rotate, the metering cavity 6 rotates to close the feeding hole 4 and rotate further, and the inlet of the metering cavity 6 and the discharging hole 5 are kept corresponding to each other to realize discharging operation; and finishing single metering discharge.

After adopting above-mentioned structure, this embodiment beneficial effect does: the device adopts a rotary metering cavity with an adjustable inner cavity to accurately meter and discharge fracturing sand discharge; the quality of pressurizing and filling fracture is guaranteed, and fracturing accidents caused by inaccurate fracturing sand discharging are avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides an accurate measurement discharging device of fracturing sand which characterized in that: the fracturing sand measuring device comprises a fracturing sand measuring shell (1), a feeding connecting seat (2), a sand storage tank (3), a feeding hole (4), a discharging hole (5), a measuring cavity (6), a central fixed shaft (7), a fixed limiting plate (8), a jar (9), a movable measuring plate (10) and a stroke motor (11); the upper end of the fracturing sand metering shell (1) is connected with a feeding connecting seat (2), and the feeding connecting seat (2) is connected with the bottom of the sand storage tank (3); a feed inlet (4) is formed at the joint of the fracturing sand metering shell (1) and the feed connecting seat (2), and a discharge outlet (5) is formed right below the fracturing sand metering shell (1); a metering cavity (6) is arranged inside the fracturing sand metering shell (1), the upper port of the metering cavity (6) is corresponding to the discharge port (5), a fixed limiting plate (8) is arranged on the right side of the discharge port (5), and the fixed limiting plate (8) is welded on the surface of the central fixed shaft (7) and the inner wall of the metering cavity (6) respectively; and a jar (9) is fixed in the middle of the back of the fixed limiting plate (8); the outer side of the central fixed shaft (7) is movably connected with a movable measuring plate (10), the inner side of the top end of the movable measuring plate (10) is fixedly provided with a stroke motor (11), and the stroke motor (11) is kept meshed with a tooth groove in the measuring cavity (6) through a fluted disc.

2. The accurate fracturing sand metering and discharging device of claim 1, wherein: the movable metering plate (10) rotates under the driving of the stroke motor (11), and the space between the movable metering plate (10) and the fixed limiting plate (8) is adjusted to change the metering space.

3. The accurate fracturing sand metering and discharging device of claim 1, wherein: the stroke distance of the stroke motor (11) is corresponding to the metering space in the inner cavity of the metering cavity (6).

4. The accurate fracturing sand metering and discharging device of claim 1, wherein: the metering cavity (6) is coaxially connected with a rotating motor (12) fixed on the outer side of the fracturing sand metering shell (1), and rotary discharging of the metering cavity (6) is achieved.

5. The accurate fracturing sand metering and discharging device of claim 1, wherein: the inner side of the movable metering plate (10) is movably arranged on the central fixed shaft (7) through two groups of rotating shafts (13).

6. The accurate fracturing sand metering and discharging device of claim 1, wherein: the outer edge of the movable metering plate (10) is wrapped with a sealing buffer rubber sheet.