Large-diameter manifold filter device for oil field

Abstract

The utility model discloses a large drift diameter manifold filter device for an oil field, which comprises a filter shell, a filter chamber is arranged in the filter shell, an inlet and an outlet communicated with the filter chamber are arranged on the outer side wall of the filter shell, a filter plate component is arranged in the filter chamber, and the filter plate component is arranged in the filter chamber. The filter plate assembly divides the filter chamber into two chambers, the filter plate assembly comprises an L-shaped filter, the L-shaped filter comprises a bottom plate and a vertical plate which are connected, filter holes are uniformly formed in the bottom plate and the vertical plate, an opening is formed in the top of the filter shell, and a packaging union assembly is arranged at the top of the filter shell. Impurities in a medium can be removed through the filter device, normal operation of fracturing is guaranteed, and meanwhile maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield manifold filter equipment, in particular to a large-diameter manifold filter device for oilfields. Background Art

[0002] Large-diameter manifold systems play a crucial role in oilfield production, especially during hydraulic fracturing operations. These systems are responsible for efficiently delivering fracturing media (including water, acid, fracturing fluid, chemical additives, and fracturing sand) to the target formation, thereby increasing oil and gas production. However, in practice, fracturing media often contains various impurities, such as stone particles, tree branches, and plastic film. If these impurities enter the fracturing pump and its accessories without being treated, they can cause severe wear and damage, disrupting the normal fracturing operation and even leading to equipment failure and downtime.

[0003] To address this issue, traditional methods often rely on simple filters or screens, but these methods have disadvantages such as low filtration efficiency, easy clogging, and difficult maintenance. Especially in large-diameter manifold systems, due to the high flow rate and high pressure of the media, higher requirements are placed on the performance of the filter.

[0004] Therefore, it is necessary to design a filter device specifically for large-diameter manifolds used in oil fields to improve filtration efficiency, protect fracturing pumps and their accessories, and reduce maintenance costs. This filter device should have the following characteristics: first, a large filtration area to improve filtration efficiency; second, a stable structure that can withstand high-pressure and high-flow working environments; and third, easy maintenance, allowing for convenient cleaning and replacement of filter elements. Utility Model Content

[0005] The purpose of the utility model is to provide a large-diameter manifold filter device for oil fields to solve the problems raised in the above-mentioned background technology. The device divides the filter chamber into two chambers through a unique L-shaped filter design, thereby increasing the filter area, improving the filter efficiency, and facilitating the removal of impurities. At the same time, the filter holes are evenly distributed on the bottom plate and the vertical plate of the L-shaped filter, so that impurities in the medium can be effectively removed. In addition, the top of the filter housing is open and is provided with a packaging assembly, which is convenient for maintenance and replacement of the filter plate assembly.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a large-diameter manifold filter device for oil fields, comprising a filter housing, a filter chamber provided in the filter housing, an inlet and an outlet connected to the filter chamber provided on the outer side wall of the filter housing, a filter plate assembly provided in the filter chamber, the filter plate assembly dividing the filter chamber into two chambers, the filter plate assembly comprising an L-shaped filter, the L-shaped filter comprising a connected bottom plate and a vertical plate, filter holes being evenly distributed on the bottom plate and the vertical plate, the filter housing having an open top and a sealed union assembly provided thereon.

[0007] In order to further optimize the present invention, the following technical solutions may be preferably used:

[0008] Preferably, the inlet and outlet of the filter housing are both provided with connecting unions.

[0009] Preferably, the packaging union assembly and the connecting union are both made of stainless steel.

[0010] Preferably, the packaged union assembly includes a union cap and a union plug arranged on the top of the filter housing, and a handle is provided on the top of the union plug.

[0011] Preferably, a height adjustment mechanism is provided at the bottom of the filter housing, and the height adjustment mechanism includes height adjustment rods symmetrically arranged on both sides of the filter housing, a support seat is provided at the bottom of the height adjustment rod, and an external thread is provided on the upper part of the height adjustment rod. A support is provided at the outer side wall position of the bottom of the filter housing, and a threaded hole matching the height adjustment support is provided on the support, and positioning nuts are provided above and below the corresponding threaded holes on the height adjustment rod.

[0012] Preferably, the bottom plate is fan-shaped and is arranged in contact with one end of the inlet of the inner wall of the filter chamber. The cross-section of the vertical plate is V-shaped. The bottom plate and the vertical plate are arranged perpendicular to each other. A limiting rod is provided on the side of the vertical plate facing away from the bottom plate in the filter housing.

[0013] Preferably, the filter holes are square holes.

[0014] Preferably, a strong magnet for filtering metal impurities is provided at the bottom of the base plate.

[0015] The beneficial effects of the "large diameter manifold filter device for oil fields" are mainly reflected in the following aspects:

[0016] 1. Significantly Improved Filtration Efficiency: The L-shaped filter design cleverly divides the filter chamber into two chambers, increasing the filtration area. Furthermore, the uniform distribution of filter holes on the base and upper plates allows impurities in the media to more fully contact the filter material, significantly improving filtration efficiency and effectively removing impurities such as stone particles, branches, and plastic film.

[0017] 2. Protect fracturing pumps and their accessories: Since the filter device can effectively remove impurities from the medium, it can significantly reduce the wear and damage of impurities on the fracturing pump and its accessories, extend the service life of the equipment, and reduce downtime and maintenance costs caused by equipment failure.

[0018] 3. Enhanced system stability: Under high-pressure, high-flow operating conditions, the filter's structural design is stable and reliable, capable of withstanding significant pressure and flow shocks, ensuring stable fracturing operations. Furthermore, its filtration performance remains stable, unaffected by fluctuations in media flow.

[0019] 4. Easy Maintenance and Replacement: The filter housing features an open top and encapsulated assembly, making cleaning, replacement, and maintenance of the filter plate assembly quick and easy. Users can easily replace and maintain the filter element without disassembling the entire filter unit, reducing maintenance costs and time.

[0020] 5. Improved Operational Efficiency: This filter ensures the cleanliness of the fracturing medium, reducing equipment failures and downtime caused by impurities, significantly improving fracturing efficiency. Furthermore, its stable filtration performance helps increase the success rate of fracturing operations and the recovery rate of oil and gas resources.

[0021] In summary, the "large-diameter manifold filter device for oil fields" has significant beneficial effects in oil field fracturing operations. It can effectively improve filtration efficiency, protect equipment, enhance system stability, facilitate maintenance and replacement, and ultimately improve operating efficiency and oil and gas resource recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the bore manifold filter device;

[0023] Figure 2 Schematic diagram of the internal structure of the bore manifold filter device;

[0024] Figure 3 Schematic diagram of the internal structure of the filter housing;

[0025] Figure 4 Schematic diagram of the three-dimensional structure of the filter;

[0026] In the figure: 1. filter housing; 2. filter chamber; 3. inlet; 4. outlet; 5. filter plate assembly; 6. limit rod; 7. union cap; 8. union plug; 9. connecting union; 10. height adjustment rod; 11. support base; 12. support; 13. positioning nut; 51. bottom plate; 52. vertical plate; 53. filter hole; 54. reinforcing connecting plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] This utility model provides the following technical solutions:

[0029] like Figure 1 - Figure 4 As shown, a large-diameter manifold filter device for oil fields includes a filter housing 1, a filter chamber 2 mounted therein, and an inlet 3 and an outlet 4 connected to the filter chamber on the outer wall of the filter housing. A filter plate assembly is mounted within the filter chamber, dividing the filter chamber into two chambers, one corresponding to inlet 3 and the other to outlet 4. The filter plate assembly 5 includes an L-shaped filter, which includes a connected base plate 51 and a vertical plate 52. The base plate and the vertical plate are evenly distributed with filter holes 53. A reinforcing connecting plate 54 is also designed on the top of the vertical plate. The base plate is fan-shaped and is mounted in contact with one end of the inlet of the inner wall of the filter chamber. The vertical plate has a V-shaped cross-section and is mounted perpendicular to each other. A limit rod 6 is mounted on the side of the vertical plate in the filter housing facing away from the base plate. The filter holes are square holes, which both increase flow capacity and prevent impurities from passing through. A strong magnet is mounted at the bottom of the base plate to filter metal impurities. The fan-shaped base plate design allows the medium to be more evenly distributed on the base plate when entering the filter chamber, thereby improving filtration efficiency. At the same time, the bottom plate is placed against the inlet end of the inner wall of the filter chamber, which helps reduce eddy currents and impacts on the media at the inlet, further protecting the filter plate assembly from damage. The V-shaped vertical plate design increases the filtration area and helps guide impurities to the bottom for collection and processing. That is, the V-shaped structure of the filter plate increases the flow area, and the L-shaped structure of the filter facilitates the removal of impurities when dismantling, while ensuring the overall structural strength. In addition, the design of the filter holes on the bottom plate and vertical plates also needs to consider the balance between filtration efficiency and filtration accuracy to ensure that impurities in the media are effectively removed without affecting the normal flow of the media.

[0030] The filter housing 1 has an open top and is fitted with a sealed union assembly. This assembly comprises a union cap 7 and a union plug 8, mounted on top of the filter housing. A handle is mounted on the top of the union plug, making replacement and maintenance of the filter plate assembly more convenient. The handle allows the user to easily lift the union plug, opening the top of the filter housing to clean or replace the filter plate assembly. The handle also takes operator safety into consideration, preventing the risk of hand injury during operation.

[0031] Connecting unions 9 are installed at both the inlet and outlet of the filter housing. This design facilitates connection of the filter assembly to other components in the manifold system. These connecting unions not only provide a secure connection but also facilitate quick installation and removal, improving work efficiency. Furthermore, the unions provide a tight seal, preventing leakage and ensuring safe system operation.

[0032] The encapsulating union and connecting union are constructed of stainless steel, while the filter housing is welded from corrosion-resistant steel pipe. Stainless steel, along with the encapsulating union, connecting union, and filter housing, offers advantages such as corrosion resistance, high temperature resistance, and high strength. In the harsh working environment of the oilfield, stainless steel effectively resists corrosive substances in the medium, extending the service life of the equipment. Furthermore, stainless steel exhibits excellent mechanical properties, capable of withstanding high pressure and high flow environments, ensuring stable operation of the equipment.

[0033] A height adjustment mechanism is installed at the bottom of the filter housing. The height adjustment mechanism includes height adjustment rods 10 symmetrically installed on both sides of the filter housing, a support base 11 installed at the bottom of the height adjustment rod, an external thread installed on the upper part of the height adjustment rod, and a support 12 installed on the outer wall of the bottom of the filter housing. The support is equipped with threaded holes that match the height adjustment support. Positioning nuts 13 are installed above and below the corresponding threaded holes on the height adjustment rod. Through the adjustment of the height adjustment mechanism, it can be applied to different installation height requirements to adapt to different working environments and installation requirements. By rotating the positioning nuts on the height adjustment rod, the height of the filter housing can be easily adjusted to ensure that it maintains an appropriate distance and angle with other components in the manifold system. This design not only improves the flexibility of the equipment, but also facilitates installation and maintenance.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-diameter manifold filter device for oil fields, comprising a filter housing, a filter chamber disposed within the filter housing, and an inlet and an outlet communicating with the filter chamber formed on an outer wall of the filter housing, characterized in that: A filter plate assembly is provided in the filter chamber, and the filter plate assembly divides the filter chamber into two chambers. The filter plate assembly includes an L-shaped filter, and the L-shaped filter includes a connected bottom plate and a vertical plate. Filter holes are evenly distributed on the bottom plate and the vertical plate. The top of the filter housing is open and is provided with a sealed union assembly.

2. The large-diameter manifold filter device for oil fields according to claim 1, characterized in that: The inlet and outlet of the filter housing are both provided with connecting unions.

3. The large-diameter manifold filter device for oil fields according to claim 1, characterized in that: The packaging union assembly and the connecting union are both made of stainless steel.

4. The large-diameter manifold filter device for oil fields according to claim 1, characterized in that: The packaged union assembly comprises a union cap and a union plug arranged on the top of the filter housing, and a handle is arranged on the top of the union plug.

5. The large-diameter manifold filter device for oil fields according to claim 1, characterized in that: A height adjustment mechanism is provided at the bottom of the filter housing, and the height adjustment mechanism includes height adjustment rods symmetrically arranged on both sides of the filter housing, a support seat is provided at the bottom of the height adjustment rod, an external thread is provided on the upper part of the height adjustment rod, and a support is provided at the outer side wall of the bottom of the filter housing, and a threaded hole is provided on the support to cooperate with the height adjustment support, and positioning nuts are provided above and below the corresponding threaded holes on the height adjustment rod.

6. The large-diameter manifold filter device for oil fields according to claim 1, characterized in that: The bottom plate is fan-shaped and is arranged in contact with one end of the inlet of the inner wall of the filter chamber. The cross-section of the vertical plate is V-shaped. The bottom plate and the vertical plate are arranged perpendicular to each other. A limiting rod is provided on the side of the vertical plate facing away from the bottom plate in the filter housing.

7. The large-diameter manifold filter device for oil fields according to claim 6, characterized in that: The filter holes are square holes.

8. The large-diameter manifold filter device for oil fields according to claim 6, characterized in that: A strong magnet for filtering metal impurities is provided at the bottom of the bottom plate.

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