A fracturing oil and gas production tree and a particle capture and separation device for a fracturing process

Abstract

The present invention relates to the technical field of fracturing oil production, and in particular to a particle capture and separation device for a fracturing oil production and gas production tree and a fracturing process, comprising an installation unit, the installation unit comprising a capture box, and an inlet side and an outlet side arranged at both ends of the capture box, the cross-sectional area of ​​the inlet side being larger than the cross-sectional area of ​​the outlet side; and a capture unit, the capture unit comprising a sliding rod arranged at four corners inside the capture box, a mounting assembly slidably arranged on the sliding rod, a capture assembly arranged in the mounting assembly, and a driving assembly arranged in the capture box and connected to the mounting assembly. The particle capture and separation device captures solid particles contained in the oil passing through the interior of the capture box through the capture assembly, and at the same time, when the capture assembly moves with the operation of the driving assembly, the hole of the capture assembly can be enlarged, thereby cleaning the stuck particles and increasing the service life of the capture assembly.

Description

Technical Field

[0001] The invention relates to the technical field of fracturing oil production, and in particular to a fracturing oil and gas production tree and a particle capture and separation device for a fracturing process. Background Art

[0002] In oilfield fracturing operations, fracturing technology increases oil and gas production by creating cracks in underground rock layers, but solid particles are generated at the same time. These particles may come from rock debris, equipment wear or additives in fracturing fluid. If these particles are not removed in time, they will not only reduce operating efficiency, but also pose a threat to equipment and personnel safety. To this end, the present invention provides a fracturing oil and gas production tree and a particle capture and separation device for fracturing processes. Summary of the invention

[0003] In view of the problem of solid particles existing in the above-mentioned conventional fracturing oil production process, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a fracturing oil and gas production tree and a particle capture and separation device for a fracturing process, so as to capture and separate solid particles generated during the oil production process.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fracturing oil and gas production tree and a particle capture and separation device for a fracturing process, comprising:

[0006] An installation unit, the installation unit comprising a capture box, and an inlet side and an outlet side arranged at both ends of the capture box, the cross-sectional area of ​​the inlet side being larger than the cross-sectional area of ​​the outlet side; and,

[0007] A capture unit includes a slide bar arranged at four corners inside the capture box, a mounting assembly slidably arranged on the slide bar, a capture assembly arranged in the mounting assembly, and a drive assembly arranged in the capture box and connected to the mounting assembly.

[0008] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, the installation assembly includes sliders slidably connected to the four slide bars respectively, and an elastic rope arranged between two adjacent sliders.

[0009] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, wherein: the capture assembly includes a plurality of cross blocks, a connecting part 1 and a connecting part 2;

[0010] The connecting portion 1 is connected between two adjacent cross blocks;

[0011] The second connecting part is connected between the cross block and the elastic rope.

[0012] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, wherein: the connecting part 1 includes a connecting pipe 1, a spring 1 arranged in the connecting pipe, and a connecting pipe 2 arranged at the end of the spring 1;

[0013] The first connecting pipe and the second connecting pipe are respectively connected to two adjacent cross blocks.

[0014] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, the second connecting part includes a connecting pipe 3 arranged at the end of the cross block, a spring 2 arranged in the connecting pipe 3, a connecting pipe 4 arranged at the end of the spring 2, and a slip ring arranged at the end of the connecting pipe 4;

[0015] The slip ring is slidably sleeved in the elastic rope.

[0016] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, the driving assembly includes a limit ring respectively arranged on the four sliding rods, an electric telescopic rod arranged on the inlet side and connected to the inner wall of the capture box, a mounting portion arranged at the end of the electric telescopic rod, and a connecting rope respectively arranged on the four sliding blocks;

[0017] The four connecting ropes are respectively slidably passed through the four limiting rings and connected to the mounting portion;

[0018] The mounting portion is located between the limiting ring and the sliding block.

[0019] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, wherein: the inlet side is equipped with a liquid inlet pipe;

[0020] The mounting portion includes a mounting tube slidably inserted in the liquid inlet tube, and an expansion cover arranged at the end of the mounting tube;

[0021] The four connecting ropes are respectively connected to the four corners of the expansion cover.

[0022] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, a sewage outlet is provided at the bottom of the inlet side, and a sealing plate connected to the outer wall of the capture box is provided outside the sewage outlet.

[0023] As a preferred solution of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention, two support columns 1 and two support columns 2 are respectively installed at two ends of the bottom of the capture box.

[0024] The beneficial effects of the present invention are as follows: the solid particles contained in the oil passing through the inside of the capture box are captured by the capture component, and at the same time, when the capture component moves with the operation of the driving component, the holes of the capture component can be enlarged, thereby cleaning the stuck particles and increasing the service life of the capture component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention.

[0027] Figure 2 The present invention is a schematic diagram of the internal structure of a capture box of a fracturing oil and gas production tree and a particle capture and separation device for a fracturing process.

[0028] Figure 3 It is a schematic diagram of the structure of the capture component of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention.

[0029] Figure 4 The present invention is a structural schematic diagram of the connection part of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process.

[0030] Figure 5 It is a schematic diagram of the second structure of the connection part of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention.

[0031] Figure 6 It is a schematic diagram of the structure of the driving components of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention.

[0032] Figure 7 It is a schematic diagram of the structure of the installation part of the fracturing oil and gas production tree and the particle capture and separation device for the fracturing process of the present invention.

[0033] In the figure: 100, mounting unit; 101, capture box; 102, inlet side; 103, outlet side; 200, capture unit; 201, slide bar; 202, mounting assembly; 203, capture assembly; 204, drive assembly; 202a, slider; 202b, elastic rope; 203a, cross block; 203b, connection part 1; 203c, connection part 2; 203b-1, connection pipe 1; 203b-2, spring 1; 203b-3, connection Connecting pipe two; 203c-1, connecting pipe three; 203c-2, spring two; 203c-3, connecting pipe four; 203c-4, slip ring; 204a, limit ring; 204b, electric telescopic rod; 204c, installation part; 204d, connecting rope; 101a, liquid inlet pipe; 204c-1, installation pipe; 204c-2, expansion cover; 101b, sewage outlet; 101c, sealing plate; 101d, support column one; 101e, support column two. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0038] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a fracturing oil and gas production tree and a particle capture and separation device for a fracturing process, the device comprising an installation unit 100 and a capture unit 200.

[0039] The installation unit 100 includes a capture box 101, and an inlet side 102 and an outlet side 103 arranged at two ends of the capture box 101. The inlet side 102 is installed with an oil inlet pipe, and the outlet side 103 is installed with an oil outlet pipe.

[0040] Furthermore, the cross-sectional area of ​​the inlet side 102 is greater than the cross-sectional area of ​​the outlet side 103 , and the cross-sectional area of ​​the inlet side 102 and the cross-sectional area of ​​the outlet side 103 are square.

[0041] Furthermore, two support columns 101d and two support columns 101e are respectively installed at the two ends of the bottom of the capture box 101. The length of the support column 101d is greater than the length of the support column 101e, so that the cross-sectional center lines of the inlet side 102 and the outlet side 103 are collinear and horizontal, ensuring that the bottom surface of the capture box 101 is tilted toward the inlet side 102, and the bottom surface of the capture box 101 on the inlet side 102 is the lowest side.

[0042] Among them, the capture unit 200 includes a sliding rod 201 arranged at the four corners inside the capture box 101, an installation component 202 slidably arranged on the sliding rod 201, a capture component 203 arranged in the installation component 202, and a driving component 204 arranged in the capture box 101 and connected to the installation component 202, wherein the four sliding rods 201 are in an expanded shape, and the cross-sections of the four sliding rods 201 and the cross-section of the capture box 101 are both square, and the cross-sectional area gradually increases from the outlet side 103 to the inlet side 102.

[0043] Furthermore, the mounting assembly 202 includes sliders 202a that are respectively slidably connected to the four slide bars 201, elastic ropes 202b arranged between two adjacent sliders 202a, the four sliders 202a and the four elastic ropes 202b form a frame, the capture assembly 203 is installed in the frame, wherein the capture assembly 203 can be made of a net woven with elastic material, the driving assembly 204 is made of four cylinders, the four cylinders are installed at the four corners of the capture box 101 and are respectively horizontal to the four slide bars 201, the four sliders 202a can be controlled to slide along the slide bar 201 by the four cylinders working simultaneously, the slider 202a is away from the inlet side 102 in the initial state, and the slider 202a can be controlled to move toward the inlet side 102 when the cylinder is working.

[0044] During use, the oil enters through the inlet side 102. When the oil passes through the capture component 203, the capture component 203 intercepts the solid particles in the oil and separates them from the oil. The capture component 203 is likely to jam the solid particles when intercepting, thereby affecting the permeability of the oil. At this time, the driving component 204 controls the sliding of multiple sliders 202a. When the sliders 202a slide along the slide bar 201, the cross-sectional area between the four sliders 202a will increase, thereby pulling the capture component 203, enlarging the mesh opening in the capture component 203, and effectively causing more jammed solid particles to fall off.

[0045] At the same time, when the slider 202a drives the capture component 203 to move, it can push the intercepted solid particles to move and push the solid particles toward the inlet side 102. Since the capture box 101 is overall in a step-like shape, the space on the inlet side 102 is large enough to store solid particles.

[0046] Example 2, reference Figure 2-Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the capture component 203 includes a plurality of cross blocks 203a, a connecting portion 1 203b and a connecting portion 203c;

[0047] A connecting portion 1 203b is connected between two adjacent cross blocks 203a;

[0048] A second connection portion 203c is connected between the cross block 203a and the elastic rope 202b.

[0049] Furthermore, the connecting portion 203b includes a connecting tube 203b-1, a spring 203b-2 arranged in the connecting tube, and a connecting tube 203b-3 arranged at the end of the spring 203b-2; wherein the connecting tube 203b-3 and the connecting tube 203b-1 are plugged into each other, and can provide all-round shielding for the spring 203b-2, thereby preventing the intercepted solid particles from impacting and damaging the spring 203b-2.

[0050] The connecting pipe 1 203b-1 and the connecting pipe 2 203b-3 are respectively connected to two adjacent cross blocks 203a. The connecting pipe 1 203b-1 and the connecting pipe 2 203b-3 are fixedly connected to the cross block 203a, which can be achieved by welding, bonding, threaded connection, etc.

[0051] Furthermore, the second connecting part 203c includes a connecting tube 3 203c-1 arranged at the end of the cross block 203a, a spring 203c-2 arranged in the connecting tube 3 203c-1, a connecting tube 4 203c-3 arranged at the end of the spring 203c-2, and a slip ring 203c-4 arranged at the end of the connecting tube 4 203c-3; wherein the connecting tube 3 203c-1 and the connecting tube 4 203c-3 are plugged into each other, which can fully shield the spring 203c-2, thereby preventing the intercepted solid particles from impacting and damaging the spring 203c-2.

[0052] The slip ring 203c-4 is slidably sleeved in the elastic rope 202b. When the driving component 204 is working, it will control the four sliders 202a to slide along the slide rod 201 toward the inlet side 102, stretching the elastic rope 202b. At the same time, multiple connecting parts 1 203b and connecting parts 2 203c are also pulled, so that the area between every four adjacent cross blocks 203a at the head and tail increases, and the area of ​​the square enclosed by the cross block 203a and the elastic rope 202b increases.

[0053] Among them, the area between every four cross blocks 203a adjacent to each other end to end and the square area surrounded by the cross block 203a and the elastic rope 202b are used to intercept solid particles. When intercepting, the solid particles are easy to get stuck and block the passage of oil. At this time, the driving component 204 works to control the four sliders 202a to slide along the slide rod 201 toward the inlet side 102, and the area between every four cross blocks 203a adjacent to each other end to end and the square area surrounded by the cross block 203a and the elastic rope 202b are increased simultaneously toward the surrounding areas, so that the stuck solid particles can be loosened and fall on the bottom surface of the capture box 101.

[0054] The solid particles will be further pushed into the inlet side 102 by the moving capture assembly 203 and accumulated.

[0055] Furthermore, a sewage outlet 101b is provided at the bottom of the inlet side 102, and a sealing plate 101c connected to the outer wall of the capture box 101 is provided outside the sewage outlet 101b. When cleaning solid particles, the accumulated solid particles on the inlet side 102 can be removed from the sewage outlet 101b by simply opening the sealing plate 101c.

[0056] The remaining structures are the same as those of Example 1.

[0057] Example 3, reference Figure 6 and Figure 7, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the driving component 204 includes limit rings 204a respectively arranged on the four sliding bars 201, an electric telescopic rod 204b arranged on the inlet side 102 and connected to the inner wall of the capture box 101, a mounting portion 204c arranged at the end of the electric telescopic rod 204b, and connecting ropes 204d respectively arranged on the four sliding blocks 202a; the four connecting ropes 204d respectively slide through the four limit rings 204a and are connected to the mounting portion 204c; the mounting portion 204c is located between the limit ring 204a and the sliding block 202a.

[0058] When the electric telescopic rod 204b is extended, it can drive the mounting portion 204c to extend and move toward the capture component 203. When the mounting portion 204c moves, it will pull the four connecting ropes 204d, thereby pulling the four sliders 202a to move toward the mounting portion 204c, that is, driving the capture device to move toward the inlet side 102 to remove the stuck solid particles.

[0059] When the electric telescopic rod 204b is retracted, the connecting rope 204d will relax first. At this time, the sliders 202a will move closer to each other under the contraction elastic force of the elastic rope 202b. At the same time, with the impact of the oil, the capture component 203 will move toward the outlet side 103, thereby returning to the initial state and performing the interception and capture operation.

[0060] Furthermore, the inlet side 102 is equipped with a liquid inlet pipe 101a; the mounting portion 204c includes a mounting tube 204c-1 slidably inserted in the liquid inlet pipe 101a, and an expansion cover 204c-2 arranged at the end of the mounting tube 204c-1; four connecting ropes 204d are respectively connected to the four corners of the expansion cover 204c-2.

[0061] Among them, the liquid inlet pipe 101a penetrates into the interior of the capture box 101, and is sealed between the liquid inlet pipe 101a and the mounting pipe 204c-1. The outlet end area of ​​the expansion cover 204c-2 is larger than the cross-sectional area of ​​the liquid inlet pipe 101a. When the oil is discharged from the outlet section of the expansion cover 204c-2, the internal pressure of the oil will decrease, and the force impacting the capture component 203 will decrease, reducing the probability of solid particles being stuck, and at the same time increasing the contact area between the oil and the capture component 203, thereby increasing the utilization rate of the capture component 203.

[0062] At the same time, the entrainment capacity of the oil on the intercepted solid particles is reduced. No oil passes between the outlet end of the liquid inlet pipe 101a and the inlet side 102. The solid particles accumulated here will not impact the capture component 203 again, reducing the probability of solid particles being stuck and increasing the life of the capture component 203.

[0063] The remaining structure is the same as that of Example 2.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fracturing oil and gas production tree and a particle capture and separation device for a fracturing process, characterized in that: include, An installation unit (100), the installation unit (100) comprising a capture box (101), and an inlet side (102) and an outlet side (103) arranged at two ends of the capture box (101), the cross-sectional area of ​​the inlet side (102) being greater than the cross-sectional area of ​​the outlet side (103); and, A capture unit (200), the capture unit (200) comprising sliding bars (201) arranged at four corners inside the capture box (101), a mounting assembly (202) slidably arranged on the sliding bars (201), a capture assembly (203) arranged in the mounting assembly (202), and a driving assembly (204) arranged in the capture box (101) and connected to the mounting assembly (202); The installation assembly (202) comprises sliding blocks (202a) respectively connected in a sliding manner to the four sliding rods (201), and an elastic rope (202b) arranged between two adjacent sliding blocks (202a); The driving assembly (204) comprises a limiting ring (204a) respectively arranged on the four sliding rods (201), an electric telescopic rod (204b) arranged on the inlet side (102) and connected to the inner wall of the capture box (101), a mounting portion (204c) arranged at the end of the electric telescopic rod (204b), and a connecting rope (204d) respectively arranged on the four sliding blocks (202a); The four connecting ropes (204d) respectively slide through the four limiting rings (204a) to be connected to the mounting portion (204c); The mounting portion (204c) is located between the limiting ring (204a) and the sliding block (202a); The inlet side (102) is provided with a liquid inlet pipe (101a); The mounting portion (204c) comprises a mounting tube (204c-1) slidably inserted into the liquid inlet tube (101a), and an expansion cover (204c-2) arranged at the end of the mounting tube (204c-1); The four connecting ropes (204d) are respectively connected to the four corners of the expansion cover (204c-2).

2. The particle capture and separation device for fracturing oil and gas production tree and fracturing process according to claim 1, characterized in that: The capture component (203) comprises a plurality of cross blocks (203a), a first connecting portion (203b) and a second connecting portion (203c); The connecting portion 1 (203b) is connected between two adjacent cross blocks (203a); The second connecting portion (203c) is connected between the cross block (203a) and the elastic rope (202b).

3. The particle capture and separation device for fracturing oil and gas production tree and fracturing process according to claim 2, characterized in that: The connecting portion 1 (203b) comprises a connecting pipe 1 (203b-1), a spring 1 (203b-2) arranged in the connecting pipe, and a connecting pipe 2 (203b-3) arranged at the end of the spring 1 (203b-2); The connecting pipe 1 (203b-1) and the connecting pipe 2 (203b-3) are respectively connected to two adjacent cross blocks (203a).

4. The particle capture and separation device for the fracturing oil and gas production tree and the fracturing process according to claim 2, characterized in that: The second connecting part (203c) comprises a third connecting pipe (203c-1) arranged at the end of the cross block (203a), a second spring (203c-2) arranged in the third connecting pipe (203c-1), a fourth connecting pipe (203c-3) arranged at the end of the second spring (203c-2), and a slip ring (203c-4) arranged at the end of the fourth connecting pipe (203c-3); The sliding ring (203c-4) is slidably sleeved in the elastic rope (202b).

5. The particle capture and separation device for fracturing oil and gas production tree and fracturing process according to claim 1, characterized in that: A sewage outlet (101b) is provided at the bottom of the inlet side (102), and a sealing plate (101c) connected to the outer wall of the capture box (101) is provided outside the sewage outlet (101b).

6. The particle capture and separation device for fracturing oil and gas production tree and fracturing process according to claim 1, characterized in that: Two supporting columns 1 (101d) and two supporting columns 2 (101e) are respectively installed at two ends of the bottom of the capture box (101).

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