Temporary plugging material tank type feeding device for fracturing

Abstract

The utility model provides a temporary plugging material tank-type feeding device for fracturing, and belongs to the technical field of temporary plugging material feeding devices, the temporary plugging material tank-type feeding device comprises a support and a feeding tank, a first cross beam is arranged above one side in the support, a second cross beam is arranged below the other side in the support, two ends of the second cross beam are connected with the support, and the feeding tank is connected with the first cross beam. The feeding tank is obliquely arranged in the support, a filling opening is formed in the top, close to one end of the liquid inlet, of the feeding tank, the liquid inlet is connected with a union of a discharge port of a fracturing blender truck through a hose, and the liquid outlet is connected with a union of a fracturing pipeline; the temporary plugging material tank type feeding device for fracturing is connected between the fracturing blender truck and the pump truck in series, so that a quantitative temporary plugging agent for fracturing can be carried into a target layer by utilizing the sand carrying capacity of fracturing fluid, the low-pressure and quantitative temporary plugging construction of the temporary plugging material can be realized, and the construction efficiency is improved. The method has the advantages of being high in low-pressure safety performance, high in construction efficiency, high in applicability and simple in operation method.

Description

Technical Field

[0001] The utility model relates to the technical field of a temporary plugging material feeding device, and in particular to a tank-type feeding device for temporary plugging material used for fracturing. Background Art

[0002] Temporary plugging of oilfield fracturing is a technology used in the process of oilfield fracturing construction, which aims to temporarily plug the cracks or pores in the formation so as to carry out fracturing operations more effectively or protect specific formations. In oilfield development, fracturing is a commonly used production-increasing measure. By injecting high-pressure fluid (usually water-based fracturing fluid) into the formation, cracks are generated in the formation rock, thereby increasing the flow channels of oil and gas and improving the production of oil wells. However, during the fracturing process, it is sometimes necessary to temporarily plug certain cracks or pores to prevent excessive loss of fracturing fluid, protect non-target formations or achieve specific fracturing effects. In order to achieve temporary plugging of oilfield fracturing, a special temporary plugging agent or temporary plugging material is usually used. These materials have good fluidity and deformability, and can quickly diffuse and plug cracks or pores after being injected into the formation. Once the temporary plugging is completed, the fracturing operation can be continued, or the temporary plugging agent can be naturally degraded after a certain period of time to release the blocked cracks or pores.

[0003] The application scope of oilfield fracturing temporary plugging technology is wide, including but not limited to the following aspects:

[0004] Plugging non-target formations: During the fracturing process, it is sometimes necessary to prevent the fracturing fluid from entering non-target formations, causing unnecessary damage or waste. By using temporary plugging agents, these non-target formations can be temporarily plugged to ensure that the fracturing fluid only enters the target formation.

[0005] Controlling crack expansion: During the fracturing process, the direction and range of crack expansion are often difficult to control accurately. By using temporary plugging agents, temporary plugging can be formed at specific locations of the cracks, thereby controlling the direction and range of crack expansion and achieving a more accurate fracturing effect.

[0006] Protecting reservoirs: In some cases, fracturing operations may cause certain damage to reservoirs, such as reducing permeability or destroying rock structures. By using temporary plugging agents, the reservoir can be temporarily protected during the fracturing process to reduce the occurrence of damage.

[0007] In the existing technology, various temporary plugging materials need to be delivered in sand mixers, high-pressure manifolds and other locations during the construction of temporary plugging in oilfield fracturing. During construction, affected by the particle size of the temporary plugging materials and the feeding location, it is necessary to stop the pump, smash the joints and other operations, which not only affects the construction efficiency, but also poses a high-pressure construction risk to the temporary plugging service personnel. Therefore, the utility model proposes a tank-type feeding device for temporary plugging materials for fracturing to solve the shortcomings of the existing technology. Summary of the invention

[0008] In view of the above problems, the purpose of the utility model is to provide a tank-type feeding device for temporary plugging materials for fracturing, which is connected in series between a sand mixing truck and a pump truck. It can utilize the sand carrying capacity of the fracturing fluid to carry a certain amount of temporary plugging agent for fracturing into the target layer, thereby realizing low-pressure and quantitative temporary plugging construction of temporary plugging materials.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A tank-type feeding device for temporary plugging material for fracturing comprises a bracket and a feeding tank, wherein a first crossbeam is provided above one side of the bracket, and two ends of the first crossbeam are connected to the bracket, a second crossbeam is provided below the other side of the bracket, and two ends of the second crossbeam are connected to the bracket, the feeding tank is tiltedly arranged inside the bracket, and the bottom of one end of the feeding tank having a liquid inlet is mounted on the first crossbeam, and the bottom of one end of the feeding tank having a liquid outlet is mounted on the second crossbeam, a filling port is provided on the top of the feeding tank near the liquid inlet, the liquid inlet is connected to the union of the discharge outlet of a sand mixing vehicle through a hose line, and a first butterfly valve is provided on the liquid inlet, the liquid outlet is connected to the union of a fracturing pipeline, and a second butterfly valve is provided on the liquid outlet, a discharge pipe is provided on the bottom of the feeding tank near one end of the liquid outlet, and a discharge ball valve is provided on the discharge pipe.

[0011] A further improvement is that a first arc-shaped bracket is provided on the first crossbeam, a second arc-shaped bracket is provided on the second crossbeam, the bottom of one end of the feeding tank is placed in the first arc-shaped bracket, and the bottom of the other end of the feeding tank is placed in the second arc-shaped bracket.

[0012] Further improvements are: the bottom of the feeding tank is provided with a first fixing plate and a second fixing plate adapted to the positions of the first beam and the second beam, the first fixing plate and the second fixing plate are both provided with fixing bolts, the first beam and the second beam are respectively provided with a first fixing hole and a second fixing hole, the first fixing plate is installed with the first fixing hole on the first beam through the first fixing bolt, and the second fixing plate is installed with the second fixing hole on the second beam through the second fixing bolt.

[0013] A further improvement is that the feeding tank is installed at an inclined angle of 30-35° on the first cross beam and the second cross beam inside the bracket.

[0014] A further improvement is that a plug is provided on the filling port, the inner wall of the plug is threadedly connected to the outer wall of the filling port, and an operating ring is provided on the top of the plug.

[0015] A further improvement is that the bracket includes a bottom plate, side frames and universal wheels, the side frames are symmetrically arranged on the front and rear sides of the top of the bottom plate, and universal wheels are arranged at the four corners of the bottom of the bottom plate.

[0016] The beneficial effects of the utility model are as follows: the tank-type feeding device for temporary plugging materials for fracturing of the utility model is connected in series between the sand mixing truck and the pump truck in advance when feeding, so that the sand carrying capacity of the fracturing fluid can be utilized to carry a certain amount of temporary plugging agent for fracturing into the target layer, thereby realizing low-pressure and quantitative temporary plugging construction of temporary plugging materials; the tank-type feeding device for temporary plugging materials for fracturing of the utility model has the advantages of high low-pressure safety performance, high construction efficiency, strong applicability and simple operation method, which can meet the technical process of temporary plugging and fracturing on-site in the oil field, can greatly improve the construction efficiency, reduce the risk of high-pressure construction on site, solve the limitation of the selectivity of the particle size of temporary plugging materials in the oil field, and ensure the effect of increasing the production of the oil field reservoir transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main perspective schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a main perspective schematic diagram of the structure of the feeding tank of the utility model;

[0019] Figure 3 This is a first stereoscopic schematic diagram of the bracket of the utility model;

[0020] Figure 4 This is a second stereoscopic schematic diagram of the bracket of the utility model.

[0021] Wherein: 1. bracket; 101. bottom plate; 102. side frame; 103. universal wheel; 2. feeding tank; 201. liquid inlet; 202. liquid outlet; 3. first crossbeam; 4. second crossbeam; 5. filling port; 6. hose line; 7. first butterfly valve; 8. fracturing pipeline; 9. second butterfly valve; 10. drain pipe; 11. drain ball valve; 12. first arc bracket; 13. first fixing plate; 14. second fixing plate; 15. first fixing hole; 16. second fixing hole; 17. first fixing bolt; 18. second fixing bolt; 19. plug; 20. second arc bracket. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0023] according to Figure 1-4As shown, this embodiment proposes a tank-type feeding device for temporary plugging materials for fracturing, including a bracket 1 and a feeding tank 2, a first crossbeam 3 is provided above one side of the bracket 1, and the two ends of the first crossbeam 3 are connected to the bracket 1, a second crossbeam 4 is provided below the other side of the bracket 1, and the two ends of the second crossbeam 4 are connected to the bracket 1, the feeding tank 2 is tilted inside the bracket 1, and the bottom of one end of the feeding tank 2 having a liquid inlet 201 is installed with the first crossbeam 3, and the feeding tank 2 has a liquid outlet 20 2 is installed with a second crossbeam 4 at the bottom of one end of the feeding tank 2, a filling port 5 is provided on the top of the feeding tank 2 near the end of the liquid inlet 201, the liquid inlet 201 is connected with the union of the discharge outlet of the sand mixing vehicle through a hose line 6, and a first butterfly valve 7 is provided on the liquid inlet 201, the liquid outlet 202 is connected with the union of the fracturing pipeline 8, and a second butterfly valve 9 is provided on the liquid outlet 202, and a discharge pipe 10 is provided at the bottom of the feeding tank 2 near the end of the liquid outlet 202, and a discharge ball valve 11 is provided on the discharge pipe 10.

[0024] When the temporary plugging material tank feeding device for fracturing of the utility model is used, the liquid inlet 201 is connected to the union of the discharge outlet of the sand mixing vehicle by a hose line 6, and the liquid outlet 202 is connected to the union of the fracturing pipeline 8, so that a high-in and low-out state is formed in the process; then the first butterfly valve 7 and the second butterfly valve 9 are kept in a closed state, the filling port 5 is opened, the funnel is inserted, and a quantitative temporary plugging agent is filled, and then the filling port 5 is closed; the second butterfly valve 9 of the liquid inlet 201 is opened in sequence, and then the first butterfly valve 7 of the liquid inlet 201 is opened, and the fracturing fluid flows through the feeding tank 2 through the low-displacement liquid supply of the sand mixing vehicle, and the filled temporary plugging agent is brought out by the suspension ability of the fracturing fluid. After the temporary plugging agent in the feeding tank 2 is completely squeezed into the fracturing pipeline, the first butterfly valve 7 and the second butterfly valve 9 are then closed, and the subsequent construction can be started. The discharge ball valve 11 on the discharge pipe 10 at the bottom of the feeding tank 2 is opened to discharge the residual liquid in the feeding tank 2 and prepare for the next feeding.

[0025] The first cross beam 3 is provided with a first arc-shaped bracket 12, the second cross beam 4 is provided with a second arc-shaped bracket 20, the bottom of one end of the feeding tank 2 is placed in the first arc-shaped bracket 12, and the bottom of the other end of the feeding tank 2 is placed in the second arc-shaped bracket 20. By providing the first arc-shaped bracket 12 and the second arc-shaped bracket 20, the feeding tank 2 can be stably tilted on the first cross beam 3 and the second cross beam 4. In the utility model, the curvature of the first arc-shaped bracket 12 and the second arc-shaped bracket 20 is adapted to the curvature of the bottom of the feeding tank 2.

[0026] The bottom of the feeding tank 2 is provided with a first fixing plate 13 and a second fixing plate 14 adapted to the positions of the first beam 3 and the second beam 4, and fixing bolts are provided on the first fixing plate 13 and the second fixing plate 14, and the first beam 3 and the second beam 4 are provided with a first fixing hole 15 and a second fixing hole 16, respectively. The first fixing plate 13 is installed with the first fixing hole 15 on the first beam 3 through a first fixing bolt 17, and the second fixing plate 14 is installed with the second fixing hole 16 on the second beam 4 through a second fixing bolt 18. When the feeding tank 2 is tiltedly placed on the first beam 3 and the second beam 4, the first fixing plate 13 is connected to the first fixing hole 15 on the first beam 3 by the first fixing bolt 17, and the second fixing plate 14 is connected to the second fixing hole 16 on the second beam 4 by the second fixing bolt 18, so that the feeding tank 2 can be stably fixed on the first beam 3 and the second beam 4.

[0027] The feeding tank 2 is installed at an inclined angle of 30-35° on the first cross beam 3 and the second cross beam 4 inside the bracket 1 , and is preferably installed at an inclined angle of 35° in the present invention.

[0028] The filling port 5 is provided with a plug 19, the inner wall of the plug 19 is threadedly connected to the outer wall of the filling port 5, and an operating ring is provided on the top of the plug 19. The plug 19 can be provided to seal the filling port 5, and the threaded connection can improve the sealing performance and ensure the internal pressure of the feeding tank 2 is stable.

[0029] The bracket 1 comprises a bottom plate 101, side frames 102 and universal wheels 103. The side frames 102 are symmetrically arranged on the front and rear sides of the top of the bottom plate 101, and universal wheels 103 are arranged at the four corners of the bottom of the bottom plate 101. The bracket 1 of the utility model can be conveniently moved by the universal wheels 103.

[0030] The tank-type feeding device for temporary plugging materials for fracturing of the utility model is connected in series between the sand mixing vehicle and the pump vehicle in advance when feeding, so that the sand carrying capacity of the fracturing fluid can be utilized to carry a certain amount of temporary plugging agent for fracturing into the target layer, thereby realizing low-pressure and quantitative temporary plugging construction of temporary plugging materials. The tank-type feeding device for temporary plugging materials for fracturing of the utility model has the advantages of high low-pressure safety performance, high construction efficiency, strong applicability and simple operation method, which can meet the technical process of temporary plugging and fracturing on-site in the oil field, can greatly improve the construction efficiency, reduce the risk of high-pressure construction on site, solve the limitation of the selectivity of the particle size of temporary plugging materials in the oil field, and ensure the effect of increasing the production of the oil field reservoir transformation.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tank-type feeding device for temporary plugging material for fracturing, characterized in that: The invention comprises a support (1) and a feeding tank (2), wherein a first crossbeam (3) is provided above one side of the support (1), and the first crossbeam (3) is connected to the support (1) at both ends; a second crossbeam (4) is provided below the other side of the support (1), and the second crossbeam (4) is connected to the support (1) at both ends; the feeding tank (2) is arranged obliquely inside the support (1), and the bottom of one end of the feeding tank (2) having a liquid inlet (201) is mounted on the first crossbeam (3), and the bottom of one end of the feeding tank (2) having a liquid outlet (202) is mounted on the second crossbeam ( 4) installation, a filling port (5) is provided on the top of the feeding tank (2) near one end of the liquid inlet (201), the liquid inlet (201) is connected to the union of the discharge port of the sand mixing vehicle through a hose line (6), and a first butterfly valve (7) is provided on the liquid inlet (201), the liquid outlet (202) is connected to the union of the fracturing pipeline (8), and a second butterfly valve (9) is provided on the liquid outlet (202), and a discharge pipe (10) is provided at the bottom of the feeding tank (2) near one end of the liquid outlet (202), and a discharge ball valve (11) is provided on the discharge pipe (10).

2. A tank-type feeding device for temporary plugging material for fracturing according to claim 1, characterized in that: The first crossbeam (3) is provided with a first arc-shaped bracket (12), the second crossbeam (4) is provided with a second arc-shaped bracket (20), the bottom of one end of the feeding tank (2) is placed in the first arc-shaped bracket (12), and the bottom of the other end of the feeding tank (2) is placed in the second arc-shaped bracket (20).

3. A tank-type feeding device for temporary plugging material for fracturing according to claim 1, characterized in that: The bottom of the feeding tank (2) is provided with a first fixing plate (13) and a second fixing plate (14) which are adapted to the positions of the first crossbeam (3) and the second crossbeam (4); the first fixing plate (13) and the second fixing plate (14) are both provided with fixing bolts; the first crossbeam (3) and the second crossbeam (4) are respectively provided with a first fixing hole (15) and a second fixing hole (16); the first fixing plate (13) is mounted to the first fixing hole (15) on the first crossbeam (3) by means of a first fixing bolt (17); and the second fixing plate (14) is mounted to the second fixing hole (16) on the second crossbeam (4) by means of a second fixing bolt (18).

4. A tank-type feeding device for temporary plugging material for fracturing according to claim 1, characterized in that: The feeding tank (2) is installed at an inclined angle of 30-35° on the first cross beam (3) and the second cross beam (4) inside the bracket (1).

5. The tank-type feeding device for temporary plugging material for fracturing according to claim 1, characterized in that: A plug (19) is provided on the filling port (5), the inner wall of the plug (19) is threadedly connected to the outer wall of the filling port (5), and an operating ring is provided on the top of the plug (19).

6. A tank-type feeding device for temporary plugging material for fracturing according to claim 1, characterized in that: The bracket (1) comprises a bottom plate (101), side frames (102) and universal wheels (103); the side frames (102) are symmetrically arranged on the front and rear sides of the top of the bottom plate (101); and the universal wheels (103) are arranged at the four corners of the bottom of the bottom plate (101).

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