Packaging drums for fracturing agents in oil fields

Abstract

This utility model discloses a packaging barrel for an oilfield fracturing breaker, comprising a barrel body, a sealing cap, a barrel lid, multiple snap-fit ​​structures, and a valve. The sealing cap is positioned on the open end of the barrel body, and a second sealing ring is provided between the sealing cap and the open end of the barrel body. The barrel lid is positioned above the sealing cap. The edge of the barrel lid is connected to the barrel body via multiple snap-fit ​​structures, and a first sealing ring is provided between the barrel lid and the open end of the barrel body. The valve is installed on the side wall of the barrel body near the open end. In this application, the barrel lid and barrel body are connected by snap-fit ​​structures, ensuring the reliability of disassembly of the barrel lid and barrel body under harsh working conditions. The packaging barrel is sealed by both the connection between the barrel lid and barrel body and the connection between the barrel lid and the sealing cap, and a double seal is achieved in conjunction with the first and second sealing rings, reducing the leakage problem of the oilfield fracturing breaker. The valve allows gas inside the barrel to be discharged, balancing the pressure inside and outside the barrel lid and preventing damage to the packaging barrel.

Description

Technical Field

[0001] This utility model relates to the field of storage and transportation technology of breaker agents, and in particular to a packaging barrel for a breaker agent used in oilfield fracturing. Background Technology

[0002] In oilfield fracturing operations, breaker is a key chemical additive used to break down colloidal substances in the wellbore and reservoir. Breakers are typically composed of high-molecular-weight polymers and are prepared through specialized chemical formulations and processes. Their main function is to reduce the viscosity of the fluid, thereby improving the flow properties of the fracturing fluid in the wellbore and reservoir.

[0003] Packaging containers for fracturing breaker agents in oilfields are typically made of high-density polyethylene (HDPE), polypropylene (PP), or metal drums (steel / stainless steel) lined with anti-corrosion coatings (such as epoxy resin) to resist corrosion from the chemicals in the breaker. However, existing packaging containers for fracturing breaker agents in oilfields have the following problems:

[0004] The lid and body of the container are usually connected by a screw thread. Under high temperature and severe aging conditions, the screw thread between the lid and body can tighten in the high temperature storage environment, making it difficult to open the lid and body. In severe aging conditions, the screw thread between the lid and body may fail, making it impossible to open normally.

[0005] Packaging barrels are generally sealed only by the connection between the lid and the barrel body, which may lead to leakage problems.

[0006] Oilfield fracturing breaker inside the packaging drum is prone to excessive internal pressure under high temperature conditions, which can ultimately lead to damage to the packaging drum.

[0007] Therefore, it is necessary to develop a packaging container for fracturing agents used in oil fields to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to design a packaging barrel for an oilfield fracturing agent in order to solve the above problems.

[0009] This utility model achieves the above objectives through the following technical solutions:

[0010] Packaging drums for fracturing agents used in oilfields include:

[0011] Barrel body;

[0012] A sealing cap; the sealing cap is placed on the open end of the barrel body, and a second sealing ring is provided between the sealing cap and the open end of the barrel body.

[0013] Bucket lid; the bucket lid is positioned above the sealing cap;

[0014] Multiple snap-fit ​​structures; the edge of the bucket lid is connected to the bucket body by multiple snap-fit ​​structures, and a first sealing ring is provided between the open end of the bucket lid and the bucket body;

[0015] Valve; the valve is installed on the side wall of the barrel near the opening end.

[0016] The beneficial effects of this utility model are as follows:

[0017] In this application, the lid and the body of the bucket are connected by a snap-fit ​​mechanism, which ensures the reliability of disassembly of the lid and the body under harsh working conditions.

[0018] In this application, the packaging barrel is sealed by connecting the barrel lid and the barrel body, and also by connecting the barrel lid and the sealing cap. In addition, the first sealing ring and the second sealing ring are used to achieve double sealing, which reduces the leakage problem of the breaker agent used for fracturing in oil fields.

[0019] In this application, gas inside the barrel can be discharged through the valve, so that the pressure inside and outside the barrel lid is balanced, thus preventing damage to the packaging barrel. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of this application;

[0021] Figure 2 for Figure 1 Enlarged view of part A of the structure;

[0022] Figure 3 This is a schematic diagram of the snap-fit ​​structure;

[0023] Figure 4 This is a top view of the bucket lid in this application;

[0024] Figure 5 for Figure 4 Enlarged view of part B of the structure.

[0025] Legend: 1-Barrel body, 2-Barrel lid, 3-Sealing cap, 4-Snap-on structure, 5-Valve nozzle, 6-Base plate, 7-Insertion hole, 8-Shaft, 9-Shaft sleeve, 10-Screw, 11-Nut, 12-First notch, 13-Second notch, 14-Third notch, 15-First annular groove, 16-Second annular groove, 17-First sealing ring, 18-Third annular groove, 19-Second sealing ring, 20-Annular step. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] 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.

[0032] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] like Figure 1 As shown, the packaging drum for oilfield fracturing breaker includes:

[0034] Barrel body 1; Barrel body 1 is formed as a cylindrical structure with one end open;

[0035] Sealing cap 3; Sealing cap 3 is placed on the open end of barrel body 1, and a second sealing ring 19 is provided between sealing cap 3 and the open end of barrel body 1; Sealing cap 3 is formed into a disc-shaped structure.

[0036] Bucket lid 2; Bucket lid 2 is positioned above sealing lid 3; Bucket lid 2 is formed into a disc-shaped structure;

[0037] Four snap-fit ​​structures 4; the edge of the lid 2 is connected to the body 1 by four snap-fit ​​structures 4, and a first sealing ring 17 is provided between the lid 2 and the open end of the body 1.

[0038] Valve 5; Valve 5 is installed on the side wall of barrel 1 near the opening end.

[0039] The valve 5 can be used with a valve needle. When it is necessary to release the high pressure inside the cylinder 1, simply insert the valve needle. Additionally, the valve needle can be connected to a gas collection device via a gas tube. After the valve needle discharges the gas, it is transferred through the gas tube to a storage device, preventing toxic and harmful gases from directly polluting the air. Furthermore, the inside of the valve 5 is equipped with a cross-shaped self-sealing diaphragm, which, together with the valve 5, ensures a double seal against the de-adhesive, preventing the de-adhesive from entering the valve 5.

[0040] like Figure 2-5 As shown, the snap-fit ​​structure 4 includes a rotating shaft 8, a bushing 9, a screw 10, and a nut 11. Four first notches 12 are provided on the outer wall of the open end of the barrel body 1, and four second notches 13 and four third notches 14 are provided on the side wall of the barrel lid 2. The second notches 13 are positioned below the third notches 14, and the second and third notches 13 are connected. The width of the third notch 14 is greater than the width of the second notch 13, and the width of the second notch 13 is less than the diameter of the nut 11. The bushing 9 is rotatably fitted onto the rotating shaft 8. The two ends of the rotating shaft 8 are installed in the two oppositely arranged side walls of the first notches 12. The first end of the screw 10 is connected to the outer wall of the bushing 9, and the nut 11 is threadedly engaged with the screw 10. When the snap-fit ​​structure 4 is locked, the middle part of the screw 10 is placed inside the second notch 13, and the nut 11 is placed inside the third notch 14, with the lower end face of the nut 11 placed at the bottom of the third notch 14.

[0041] like Figure 1 and 4 As shown, the four second notches 13 and the four third notches 14 are evenly distributed around the axis of the lid 2, and the four snap-fit ​​structures 4 and the four first notches 12 are evenly distributed around the axis of the body 1. The evenly distributed snap-fit ​​structures 4 can ensure that the snapping force on the lid 2 is evenly distributed.

[0042] like Figure 2 and3 As shown, when the snap-fit ​​structure 4 is locked, the top of the screw 10 is not higher than the top of the lid 2. This design aims to make the surface of the packaging drum more uniform, facilitating the stacking and transportation of multiple packaging drums.

[0043] like Figure 2 As shown, a first annular groove 15 is provided on the inner side of the first notch 12 at the open end of the barrel body 1, and a second annular groove 16 is provided on the bottom of the barrel lid 2 accordingly. The upper part of the first sealing ring 17 is placed in the second annular groove 16, and the lower part of the second sealing ring 19 is placed in the first annular groove 15.

[0044] like Figure 2 As shown, an annular step 20 is provided on the inner side of the first annular groove 15 at the open end of the barrel body 1. The diameter of the sealing cover 3 is slightly smaller than the diameter of the annular step 20, and the sealing cover 3 is placed on the annular step 20.

[0045] like Figure 2 As shown, the height of the sealing cap 3 is higher than the height of the annular step 20 to the opening end of the barrel 1. This design aims to provide a convenient gripping point for the sealing cap 3, facilitating its removal. In practical use, a negative pressure suction cup can be used to suction the top of the sealing cap 3 before pulling it up. Additionally, when opening the sealing cap 3, the valve needle can be inserted into the valve nozzle 5 to release pressure, ensuring the opening of the sealing cap 3 is unaffected by negative pressure.

[0046] like Figure 2 As shown, a third annular groove 18 is provided on the annular step 20, and the second sealing ring 19 is placed in the third annular groove 18.

[0047] like Figure 1 As shown, a base plate 6 is installed at the bottom of the barrel 1, and two parallel insertion holes 7 are installed on the base plate 6. The purpose of this arrangement is that the forklift forks can be inserted into the two insertion holes 7 for the transport of the packaging barrel.

[0048] Working principle:

[0049] The barrel 1 is used to hold the fracturing agent for oilfields. After the fracturing agent is filled, it is necessary to ensure that the height of the fracturing agent is lower than the height of the valve 5. Then, the second sealing ring 19 is placed in the third annular groove 18, and the sealing cap 3 is placed on the annular step 20. Then, the first sealing ring 17 is placed in the second annular groove 16, and the lower part of the first sealing ring 17 is aligned with the third annular groove 18 and inserted. The barrel lid 2 is placed on the sealing cap 3. Then, the screw 10 is turned to vertical, and the nut 11 is tightened with a socket-type nut tightener until the barrel lid 2 presses against the barrel 1 and the sealing cap 3. When it is necessary to open the packaging barrel, simply reverse the operation steps.

[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A package barrel of a gel breaker for oil field fracturing, characterized by, include: Barrel body; A sealing cap; the sealing cap is placed on the open end of the barrel body, and a second sealing ring is provided between the sealing cap and the open end of the barrel body. Bucket lid; the bucket lid is positioned above the sealing cap; Multiple snap-fit ​​structures; the edge of the bucket lid is connected to the bucket body by multiple snap-fit ​​structures, and a first sealing ring is provided between the open end of the bucket lid and the bucket body; Valve; the valve is installed on the side wall of the barrel near the opening end.

2. The breaker package for oilfield fracturing according to claim 1, wherein The snap-fit ​​structure includes a rotating shaft, a bushing, a screw, and a nut. Multiple first notches are provided on the outer wall of the open end of the barrel body, and multiple second and third notches are provided on the side wall of the barrel lid. The second notches are located below the third notches and are connected. The width of the third notch is greater than the width of the second notch, and the width of the second notch is less than the diameter of the nut. The bushing is rotatably fitted onto the rotating shaft. The two ends of the rotating shaft are installed in the two oppositely arranged side walls of the first notches. The first end of the screw is connected to the outer wall of the bushing, and the nut is threadedly engaged with the screw. When the snap-fit ​​structure is locked, the middle part of the screw is placed in the second notch, the nut is placed in the third notch, and the lower end face of the nut is placed at the bottom of the third notch.

3. The breaker package for oilfield fracturing according to claim 2, wherein Multiple second and third notches are evenly distributed around the center line of the lid, and multiple snap-fit ​​structures and multiple first notches are evenly distributed around the center line of the barrel body.

4. The oilfield fracturing breaker packaging barrel according to claim 2, characterized in that, When the snap-lock mechanism is engaged, the top of the screw should not be higher than the top of the bucket lid.

5. The oilfield fracturing breaker packaging barrel according to claim 1, characterized in that, A first annular groove is provided on the inner side of the first notch at the open end of the barrel body, and a second annular groove is provided on the bottom of the barrel lid accordingly. The upper part of the first sealing ring is placed in the second annular groove, and the lower part of the second sealing ring is placed in the first annular groove.

6. The oilfield fracturing breaker packaging barrel according to claim 5, characterized in that, An annular step is provided on the inner side of the first annular groove at the open end of the barrel. The diameter of the sealing cap is slightly smaller than the diameter of the annular step, and the sealing cap is placed on the annular step.

7. The oilfield fracturing breaker packaging barrel according to claim 5, characterized in that, The height of the sealing cap is higher than the height from the annular step to the opening end of the barrel.

8. The oilfield fracturing breaker packaging barrel according to claim 5, characterized in that, A third annular groove is provided on the annular step, and the second sealing ring is placed in the third annular groove.

9. The packaging drum for the oilfield fracturing breaker according to claim 1, characterized in that, The bottom of the barrel is fitted with a base plate, on which are two parallel insertion holes.

Images