A fracturing device with self-positioning for oil field development

Abstract

The utility model relates to the field of oilfield exploitation, and discloses a self-positioning fracturing device for oilfield exploitation, including flange A and flange B, wherein the right outer wall of flange A is fixedly connected with a connecting pipe, the right outer wall of flange B is fixedly connected with a positioning block, the outer wall of the positioning block is detachably mounted with a sealing ring, the outer wall of the connecting pipe is provided with a quick-install component, the inner wall of flange A is penetrated and threaded with multiple groups of bolts, the outer wall of the bolts is fixedly connected with multiple groups of tooth blocks, and the inner side wall of flange A is provided with upper and lower groups of limit assemblies. In the utility model, when flange A and flange B are connected, the gear ring can be engaged with multiple groups of tooth blocks by rotating the sliding sleeve, so that multiple groups of bolts can be rotated synchronously to connect and lock flange A and flange B, without the need to manually use special tools to rotate and lock each group of bolts separately.

Description

Technical Field

[0001] The utility model relates to the field of oilfield exploitation, in particular to a self-positioning fracturing device for oilfield exploitation. Background Art

[0002] Fracturing equipment is a key equipment used in oil field exploitation and rock exploration. Its main function is to fracture rocks through high-pressure liquid to increase the production capacity and permeability of oil or natural gas wells.

[0003] After searching, the Chinese patent announcement number: CN 216841602 U discloses a self-positioning fracturing device for oil field development, including a first pipeline, a first flange is rotatably mounted on the surface of the first pipeline, a positioning device is detachably mounted inside the first flange, a second flange is movably mounted on one end of the positioning device, a second pipeline is rotatably mounted on the inner wall of the second flange, a sealing assembly is movably mounted on the surface of the second pipeline, and a corrugated tube is formed integrally on the inner wall of the first pipeline. In the above scheme, the positioning device can make the installation of the manifold faster and more convenient, and workers do not need to spend extra time to position the flange, which speeds up the installation speed, thereby achieving the effect of improving the practicality of the overall manifold; the sealing assembly can make the sealing work at the pipeline connection tighter, and it is convenient to disassemble and assemble, and workers do not need to spend a lot of time to perform remedial work on the manifold, further achieving the effect of improving the practicality of the overall device.

[0004] Although the above device uses a positioning device to splice and fix the two sets of flanges, bolt holes are provided on the surfaces of the flanges. When splicing and fixing the two sets of flanges, workers are still required to hold special tools to repeatedly rotate each set of bolts to splice and fix the two sets of flanges. It is impossible to rotate and fix multiple sets of bolts at the same time, which is time-consuming and laborious to operate. Therefore, a fracturing equipment with self-positioning for oil field development is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a self-positioning fracturing device for oil field development, aiming to improve the problem in the prior art that multiple groups of bolts cannot be rotated and fixed at the same time, and the operation is time-consuming and labor-intensive.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-positioning fracturing device for oil field development, comprising flange A and flange B, wherein the right outer wall of flange A is fixedly connected with a connecting pipe, the right outer wall of flange B is fixedly connected with a positioning block, the outer wall of the positioning block is detachably mounted with a sealing ring, the outer wall of the connecting pipe is provided with a quick-install component, and the quick-install component comprises a sliding sleeve;

[0007] The left outer wall of the sliding sleeve is fixedly connected with a gear ring, the inner wall of the flange A penetrates and is threadedly connected with multiple groups of bolts, the outer wall of the bolts is fixedly connected with multiple groups of gear blocks, and the inner side wall of the flange A is provided with upper and lower groups of limit assemblies.

[0008] As a further description of the above technical solution: the limiting assembly includes a wedge block, and the wedge block is elastically connected to the inner wall of flange A through a limiting spring.

[0009] As a further description of the above technical solution: the outer wall of the flange B contacts the outer wall of the flange A, and the outer wall of the sealing ring contacts the inner side wall of the flange A.

[0010] As a further description of the above technical solution: the inner wall of the flange A is provided with a hollow groove, and the positioning block is plugged into the inner wall of the hollow groove of the flange A.

[0011] As a further description of the above technical solution: the sliding sleeve is slidably connected to the outer wall of the connecting pipe, and the bolt passes through and is threadedly connected to the inner wall of flange B.

[0012] As a further description of the above technical solution: the outer side wall of the tooth block is meshed with the gear ring.

[0013] As a further description of the above technical solution: one end of the limit spring is fixedly connected to the inner wall of flange A, and the other end of the limit spring is fixedly connected to the surface of the wedge block.

[0014] As a further description of the above technical solution: the wedge block penetrates through and is slidably connected to the inner wall of flange A, the outer side wall of the positioning block is provided with a slot, and the bottom end of the outer wall of the wedge block is snap-fitted with the inner wall of the slot.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, by providing a quick-release assembly, when flange A and flange B are connected, the gear ring can be engaged with multiple sets of gear blocks by rotating the sliding sleeve, so that multiple sets of bolts can be rotated synchronously to connect and lock flange A and flange B, without having to manually use special tools to rotate and lock each set of bolts separately;

[0017] 2. In the utility model, by cooperating with the positioning block and the wedge block, when two sets of flanges are connected and fixed, the positioning block can be used to quickly splice and fix the two sets of flanges, thereby facilitating the staff to rotate the bolts to connect and fix the two sets of flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the overall three-dimensional structure of a self-positioning fracturing device for oil field development.

[0019] Figure 2 This is a structural schematic diagram of the separated state of flange A and flange B of a self-positioning fracturing device for oil field development proposed by the utility model.

[0020] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a flange A of a self-positioning fracturing device for oil field development.

[0021] Figure 4 This is a structural schematic diagram of the flange A and bolts of a self-positioning fracturing device for oil field development proposed by the utility model in a separated state.

[0022] Legend: 1. Connecting pipe; 2. Flange A; 3. Flange B; 4. Positioning block; 5. Sealing ring; 6. Quick-release assembly; 61. Sliding sleeve; 62. Gear ring; 63. Bolt; 64. Gear block; 7. Limiting assembly; 71. Limiting spring; 72. Wedge block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-Figure 3 The utility model provides an embodiment: a self-positioning fracturing device for oil field development, including a flange A2 and a flange B3, the outer wall of the flange B3 contacts the outer wall of the flange A2, the surfaces of the flange A2 and the flange B3 are provided with mounting holes, and the two groups of mounting holes are aligned to splice and fix the two groups, the outer wall of the sealing ring 5 contacts the inner side wall of the flange A2, and the sealing ring 5 contacts the positioning block 4 and the inner side wall of the flange A2, so that the flange B3 and the flange A2 are sealed by the sealing ring 5 to avoid leakage in the gap, and the right outer wall of the flange A2 is fixedly connected with a connecting pipe 1.

[0025] Reference Figure 2-Figure 3The right outer wall of flange B3 is fixedly connected with a positioning block 4, and an empty groove is opened on the inner wall of flange A2. The positioning block 4 is plugged into the inner wall of the empty groove of flange A2. The plugging between the two can position and install the positioning block 4 and flange A2, so that the mounting holes of flange A2 and flange B3 can be quickly aligned. The outer wall of the positioning block 4 is detachably installed with a sealing ring 5. The sealing ring 5 is a prior art. The sealing ring 5 is provided to seal the connection between flange A2 and flange B3 to prevent leakage from the gap flange during oil field exploitation. The inner side wall of flange A2 is provided with upper and lower sets of limit assemblies 7.

[0026] Reference Figure 3 The limiting assembly 7 includes a wedge block 72, which is elastically connected to the inner wall of the flange A2 through a limiting spring 71, one end of the limiting spring 71 is fixedly connected to the inner wall of the flange A2, and the other end of the limiting spring 71 is fixedly connected to the surface of the wedge block 72. The function of the limiting spring 71 is to automatically reset the position of the wedge block 72 after being squeezed and moved when the inclined surface at the bottom end of the wedge block 72 is squeezed and moved. The wedge block 72 penetrates and is slidably connected to the inner wall of the flange A2. The outer side wall of the positioning block 4 is provided with a slot, and the bottom end of the outer wall of the wedge block 72 is clamped with the inner wall of the slot. The two are plugged in, so that after the mounting holes of the flange A2 and the flange B3 are aligned, the flange A2 and the flange B3 can be preliminarily connected and fixed, thereby facilitating the rotation and fixation of the bolt 63.

[0027] Reference Figure 1-Figure 3 The outer wall of the connecting pipe 1 is provided with a quick-install component 6, which includes a sliding sleeve 61. The sliding sleeve 61 is slidably connected to the outer wall of the connecting pipe 1. The surface of the sliding sleeve 61 is provided with an anti-slip pad, and a cavity that fits the outer wall of the connecting pipe 1 is opened inside, so that the sliding sleeve 61 can rotate on the outer wall of the connecting pipe 1. The bolt 63 passes through and is threadedly connected to the inner wall of the flange B3. The initial state of the bolt 63 is threadedly connected to the inner wall of the flange A2, and the bottom end of the bolt 63 is flush with the fitting surface of the flange A2 and the flange B3, so as to facilitate the threaded locking of the tooth block 64 and the flange B3. The left outer wall of the sliding sleeve 61 is fixedly connected There is a gear ring 62, and the sliding sleeve 61 will drive the gear ring 62 to rotate synchronously with it when it rotates. The inner wall of the flange A2 is penetrated and threaded with multiple groups of bolts 63. The inner wall of the bolt 63 is provided with a hexagonal opening, and the bolt 63 can be rotated and locked by a special tool. The outer wall of the bolt 63 is fixedly connected with multiple groups of tooth blocks 64, and the outer side wall of the tooth block 64 is meshed with the gear ring 62. The meshing between the two allows the rotation of the gear ring 62 to simultaneously mesh with the tooth blocks 64 at the multiple groups of bolts 63, so that the multiple groups of bolts 63 can be rotated to be threadedly fastened with the flange B3, and the tooth spacing of the gear ring 62 is matched with the tooth block 64.

[0028] Working principle: First, flange B3 is connected with flange A2 so that the outer wall of flange B3 contacts the outer wall of flange A2. At this time, the positioning block 4 is inserted into the empty groove on the inner wall of flange A2 to achieve positioning installation, which is convenient for quickly aligning the installation holes of the two.

[0029] During the insertion of the positioning block 4, the sealing ring 5 on its outer wall contacts the inner side wall of the flange A2, thereby sealing the connection between the flange A2 and the flange B3 to prevent leakage during oil field exploitation.

[0030] When the positioning block 4 is inserted, the inclined surface at the bottom end of the wedge block 72 will be squeezed, causing the wedge block 72 to move under the action of the limit spring 71. When the slot on the outer side wall of the positioning block 4 moves to the position of the wedge block 72, the limit spring 71 pushes the wedge block 72 to reset, causing the bottom end of its outer wall to engage with the slot, thereby achieving the initial connection and fixation after the mounting holes of flange A2 and flange B3 are aligned.

[0031] Next, by rotating the sliding sleeve 61, the gear ring 62 is driven to rotate. Since the gear ring 62 is meshed with the tooth block 64 on the outer wall of the bolt 63, and the tooth spacing of the gear ring 62 matches the tooth block 64, the rotation of the gear ring 62 will drive multiple groups of bolts 63 to rotate at the same time. The bolts 63 are threadedly connected to the inner wall of the flange B3, thereby further tightening the flange A2 and the flange B3 and completing the entire splicing and fixing process. During the rotation of the bolt 63, its initial state is that it is threadedly connected to the inner wall of the flange A2 and the bottom end is flush with the fitting surface of the flange A2 and the flange B3, which is convenient for thread locking at the flange B3. The anti-slip pad on the surface of the sliding sleeve 61 and the cavity inside it that fits the outer wall of the connecting pipe 1 ensure that the sliding sleeve 61 can stably rotate on the outer wall of the connecting pipe 1.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-positioning fracturing device for oil field development, comprising a flange A (2) and a flange B (3), characterized in that: The right outer wall of the flange A (2) is fixedly connected to a connecting pipe (1), the right outer wall of the flange B (3) is fixedly connected to a positioning block (4), a sealing ring (5) is detachably mounted on the outer wall of the positioning block (4), and a quick-install component (6) is provided on the outer wall of the connecting pipe (1), and the quick-install component (6) comprises a sliding sleeve (61); A toothed ring (62) is fixedly connected to the left outer wall of the sliding sleeve (61); a plurality of groups of bolts (63) penetrate through and are threadedly connected to the inner wall of the flange A (2); a plurality of groups of toothed blocks (64) are fixedly connected to the outer wall of the bolts (63); and an upper and lower group of stopper assemblies (7) are provided on the inner side wall of the flange A (2).

2. The self-positioning fracturing equipment for oil field development according to claim 1, characterized in that: The limiting assembly (7) comprises a wedge block (72), and the wedge block (72) is elastically connected to the inner wall of the flange A (2) via a limiting spring (71).

3. The self-positioning fracturing equipment for oil field development according to claim 1, characterized in that: The outer wall of the flange B (3) contacts the outer wall of the flange A (2), and the outer wall of the sealing ring (5) contacts the inner side wall of the flange A (2).

4. The self-positioning fracturing equipment for oil field development according to claim 1, characterized in that: The inner wall of the flange A (2) is provided with a hollow groove, and the positioning block (4) is plugged into the inner wall of the hollow groove of the flange A (2).

5. The self-positioning fracturing equipment for oil field development according to claim 1, characterized in that: The sliding sleeve (61) is slidably connected to the outer wall of the connecting pipe (1), and the bolt (63) penetrates and is threadedly connected to the inner wall of the flange B (3).

6. The self-positioning fracturing equipment for oil field development according to claim 1, characterized in that: The outer side wall of the tooth block (64) is meshed with the tooth ring (62).

7. The self-positioning fracturing equipment for oil field development according to claim 2, characterized in that: One end of the limit spring (71) is fixedly connected to the inner wall of the flange A (2), and the other end of the limit spring (71) is fixedly connected to the surface of the wedge block (72).

8. The self-positioning fracturing equipment for oil field development according to claim 2, characterized in that: The wedge block (72) penetrates through and is slidably connected to the inner wall of the flange A (2); a slot is provided on the outer side wall of the positioning block (4); and the bottom end of the outer wall of the wedge block (72) is snap-fitted to the inner wall of the slot.

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