Fracturing pry valve replacement tool for hydraulic jet drilling

Abstract

The utility model belongs to the technical field of oil field oil extraction, and discloses a fracturing pry valve replacing tool for hydraulic jet drilling. When the valve needs to be replaced, the pressing rod is lifted upwards, so that the pressing rod nose, the pressing cap lug and the pressing cap move upwards, the space is opened, the valve seat is placed on the pressing cap base, then the valve and the guide frustum are sequentially arranged on the valve seat in a sleeving mode, at the moment, the pressing rod is pressed downwards, the valve can be pressed into the valve seat, and replacement of the valve is completed. The valve can be replaced only by being lifted and pressed by a single person, the operation is simple and easy to implement, the design is novel, convenience and practicability are achieved, and the site construction technology is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil field production, and particularly relates to a fracturing skid valve replacement tool for hydraulic jet drilling. Background Art

[0002] As a new production-enhancing technology, hydraulic jet drilling is increasingly being applied in low-permeability oilfield development, including geological exploration, oil well stimulation, and improving steam and water injection. This technology can directly and effectively connect distal fractures in the reservoir or near-wellbore areas to unblock them, improving the permeability of the productive interval and mobilizing residual oil between wells, thereby increasing production and efficiency.

[0003] Water jet technology uses water as a medium, adding abrasives to form an abrasive slurry. This slurry then generates enormous energy through high-pressure generating devices such as fracturing skids, relying on the high-speed impact and scouring of the high-pressure abrasive liquid to achieve material removal. Hydraulic jet drilling uses this principle to create windows in the casing and form formation holes. During construction, the valve seals in the fracturing pump are easily damaged by the repeated scouring of the high-pressure abrasive slurry, causing the valve assembly to fail and damage the fracturing pump. Therefore, the valve seals need to be replaced regularly. Purchasing valve seals is expensive, while valve seals are cheaper. However, there is no tooling available to replace valve seals. Therefore, there is an urgent need for a device that can quickly and easily replace valve seals at a low cost, thereby ensuring the normal operation of the fracturing skid. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a hydraulic jet drilling fracturing pry valve replacement tool to achieve the replacement of the valve rubber, which is economical and effective, has high replacement efficiency and low labor intensity, and meets the requirements of testing and on-site construction.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a hydraulic jet drilling fracturing skid valve replacement tool, comprising:

[0006] The pressure rod is provided with a pressure rod nose, which is used to lift up to open the replacement space and press down to press the valve into the valve seat when replacing the valve. The pressure rod nose is connected to the pressure cap ear on the pressure cap to synchronously replace the valve;

[0007] The pressure cap is provided with a pressure cap ear, a guide cone is provided inside the pressure cap, and a pressure cap base is provided at the bottom of the pressure cap. The overall size of the pressure cap matches the valve seat and the valve, which is used to fasten the valve to the valve seat when replacing the valve and to facilitate opening the replacement space. The guide cone is used to increase the fastening efficiency and the efficiency of opening the replacement space. The pressure cap ear is connected to the pressure rod nose to synchronously replace the valve. The pressure cap base is used to place and fix the valve and the valve seat.

[0008] Furthermore, the pressure rod nose and the pressure cap ear are connected by a bolt b.

[0009] Furthermore, a support frame is provided on the pressure rod, and the support frame is used to fix the valve replacement tool.

[0010] In a further preferred embodiment of the present invention, a support frame is provided on one side of the pressure rod, and the pressure rod and the support frame are connected by bolts a.

[0011] Furthermore, a bottom plate is provided at the bottom of the hydraulic jet drilling fracturing skid valve replacement tool, and the bottom plate is under the pressure cap base for placing the pressure cap base for valve replacement.

[0012] Furthermore, a through center hole is provided on the pressure cap base, which is used to press down and fasten the valve to the valve seat so that the bottom of the valve seat can be welded and fixed to the floor.

[0013] In a further preferred embodiment of the present invention, the diameter of the central hole on the pressure cap base is larger than the outer diameter of the valve seat.

[0014] Furthermore, a penetrating central hole is provided on the bottom plate, and the diameter of the central hole is larger than the diameter of the central hole of the pressure cap base.

[0015] In a further preferred embodiment of the present invention, the support frame is composed of two angle irons, which clamp one side of the pressure rod and fasten the pressure rod with bolts a.

[0016] Furthermore, the inner hole of the guide cone has the same outer diameter as the guide claw of the valve seat.

[0017] The method for replacing the valve with the above-mentioned hydraulic jet drilling fracturing pry valve replacement tool is as follows: when the valve needs to be replaced, lift the pressure rod so that the pressure rod nose, pressure cap ear, and pressure cap move upward to open the space, place the valve seat on the pressure cap base, and then insert the valve and guide cone into the valve seat in turn. At this time, press the pressure rod downward to press the valve into the valve seat to complete the replacement of the valve.

[0018] Compared with the prior art, the utility model has the advantages that the valve can be replaced by one person only by lifting and pressing down, the operation is simple and easy, the design is novel, convenient and practical, and it meets the needs of on-site construction technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 Schematic diagram of the replacement tool structure for the hydraulic jet drilling fracturing skid;

[0021] Figure 2 3D structural diagram of the replacement tool for the hydraulic jet drilling fracturing skid;

[0022] Figure 3 This is a schematic diagram of the structure of the Vaner seat;

[0023] Figure 4 Schematic diagram of the pressure cap structure;

[0024] Figure 5 Schematic diagram of the guide cone structure;

[0025] Figure 6 Schematic diagram of the valve and valve component structure.

[0026] In the figure, 1. base plate; 2. support frame; 3. bolt a; 4. pressure rod; 5. pressure rod nose; 6. bolt b; 7. pressure cap ear; 8. pressure cap; 9. guide cone; 10. valve seat; 11. valve; 12. pressure cap base. DETAILED DESCRIPTION

[0027] The present invention is described in detail below by means of specific examples, but the scope of protection of the present invention is not limited. Unless otherwise specified, the experimental methods used in the present invention are conventional methods, and the experimental equipment, materials, reagents, etc. used can be obtained from commercial channels.

[0028] Example 1

[0029] like Figure 1 and 2 The diagram shows the structure of the hydraulic jet drilling fracturing skid valve replacement tool and the three-dimensional structure diagram. The bottom plate 1 is designed with a center hole. The size of the center hole must be larger than the valve seat 10 (attached Figure 3 ) of the outer diameter d, the bottom plate 1 is welded and fixed to the support frame 2 and the pressure cap base 12; the support frame 2 is two angle irons, the upper end of which is designed with an axial hole, and the support frame 2 is connected to the pressure rod 4 by a bolt a3; the bolt a3 consists of a bolt and a nut; one end of the pressure rod 4 is designed with a pin hole, the bolt a3 is inserted into the pin hole and the axial hole of the support frame 2, and the pressure rod 4 can be lifted and pressed down around the bolt a3; the lower end of the pressure rod nose 5 is designed with a pin hole, and the other end is welded and fixed to the pressure rod 4, and the pressure rod nose 5 is connected to the pressure cap ear 7 by a bolt b6; the bolt b6 consists of a bolt and a nut; there is a pair of pressure cap ears 7, which are respectively welded and fixed to the pressure cap 8; the pressure cap 8 (attached Figure 4 ) The lower end surface has a platform, and the inner hole of the lower end is designed with a large slope angle, the angle of the slope angle is the same as the guide cone 9 (attached Figure 5 ) of the guide angle; guide cone 9 (attached Figure 5 ) is placed in the pressure cap, the outer cone angle matches the cone angle of the inner hole of the pressure cap 8, and the inner hole diameter of the guide cone 9 matches the inner hole diameter of the valve seat 10 (attached Figure 3 ) The outer diameter D of the guide claw is matched, and the lower end surface is designed with a chamfer to match the valve seat 10 (attached Figure 3 )A surface matches; Valve seat 10 and Valve seat 11 (attached Figure 6 ) constitutes the valve assembly (attached Figure 6 ), plays a sealing role in the fracturing skid, the valve 11 is a purchased part, and is also a wearing part, which needs to be replaced; the pressure cap base 12 is designed with a step and a center hole for placing the valve seat 10, and the valve base 12 is welded and fixed to the base plate 1. The above clarifies the connection relationship between the various components. The replacement tool also needs to ensure that the pressure cap base 12, the valve seat 10, the pressure cap 8 and the center hole on the base plate 1 remain concentric, and at the same time, the two angle irons of the support frame 2 and the pressure cap ear 7 must be welded and fixed symmetrically with the center line of the base plate. This ensures that when the pressure rod 4 is lifted or pressed down, the pressure rod nose 5, the pressure cap ear 7, the pressure cap 8, the guide cone 9, the valve seat 10, and the pressure cap base 12 are on the same center line, thereby ensuring the success rate of the valve replacement.

[0030] When the valve needs to be replaced, lift the pressure rod 4 so that the pressure rod nose 5, bolt b6, pressure cap ear 7, and pressure cap 8 move upward to open the space, place the valve seat 10 on the pressure cap base 12, and then put the valve 11 and guide cone 9 into the valve seat 10 in turn. At this time, press the pressure rod 4 downward to press the valve 11 into the valve seat 10, thereby completing the replacement of the valve.

[0031] This utility model is a hydraulic jet drilling fracturing skid valve replacement tool that only requires one person to lift and press the valve to complete the replacement. It is simple and easy to operate, has a novel design, is convenient and practical, and meets the needs of on-site construction processes. The utility model is suitable for replacing valves in valve assemblies of various specifications, and is not limited to hydraulic jet drilling fracturing skids. The valve assemblies in conventional fracturing trucks can also be used by simply changing the size specifications of the utility model design.

[0032] The above-described embodiments are only preferred embodiments of the present invention, and are not intended to be all feasible embodiments of the present invention. For those skilled in the art, any obvious modifications made thereto without departing from the principles and spirit of the present invention should be considered to be within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic jet drilling fracturing skid valve replacement tool, characterized in that: include: A pressure rod (4) is provided with a pressure rod nose (5), and the pressure rod nose (5) is connected to a pressure cap ear (7) on a pressure cap (8); A pressure cap (8) is provided with a pressure cap ear (7) on the pressure cap (8), a guide cone (9) is provided in the pressure cap (8), a pressure cap base (12) is provided at the bottom of the pressure cap (8), and the pressure cap ear (7) is connected to the pressure rod nose (5).

2. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 1 is characterized in that: The pressure rod nose (5) and the pressure cap ear (7) are connected via a bolt b (6).

3. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 1 is characterized in that: A support frame (2) is provided on the pressure rod (4).

4. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 3 is characterized in that: A support frame (2) is provided on one side of the pressure rod (4), and the pressure rod (4) and the support frame (2) are connected via a bolt a (3).

5. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 4 is characterized in that: The support frame (2) is composed of two angle irons, which clamp one side of the pressure rod (4) and fasten the pressure rod through bolts a (3).

6. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 1, characterized in that: The bottom of the hydraulic jet drilling fracturing skid valve replacement tool is provided with a bottom plate (1), and the bottom plate (1) is under the pressure cap base (12).

7. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 1, characterized in that: The pressure cap base (12) is provided with a penetrating central hole.

8. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 7, characterized in that: The diameter of the central hole on the pressure cap base (12) is larger than the outer diameter of the valve seat (10).

9. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 6, characterized in that: The bottom plate (1) is provided with a penetrating central hole.

10. The hydraulic jet drilling fracturing skid valve replacement tool according to claim 9, characterized in that: The diameter of the center hole of the bottom plate is larger than the diameter of the center hole of the pressure cap base (12).

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