Integrated oil nozzle for high-pressure gas well blowout test
By designing an integrated nozzle, which includes a valve seat, nozzle channel, sealing ring groove, and trumpet-shaped opening, the problems of unstable fluid flow and tool stuck in high-pressure gas well blowout testing were solved, thereby improving the stability and efficiency of fluid flow.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-03
AI Technical Summary
In existing high-pressure gas well blowout tests, the combined nozzle has weak erosion resistance, which can easily lead to nozzle sleeve puncture, enlarged backflow channel, rapid pressure drop, formation sand rushing into the wellbore, and easy jamming of drill plug tools, resulting in unstable fluid flow.
Design an integrated nozzle, including a valve seat, nozzle channel, sealing ring groove and flared nozzle opening, and use O-ring sealing to form an integrated structure to enhance fluid dynamics performance.
The integrated structure avoids assembly gaps, improves the stability and efficiency of liquid flow, enhances erosion resistance, and is easy to replace, thus solving the problems of unstable fluid flow and tool jamming.
Smart Images
Figure CN224079119U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an oil nozzle, or more precisely, an integrated oil nozzle for high-pressure gas well blowout testing. Background Technology
[0002] Currently, during processes such as the release of fluid after high-pressure new well fracturing and the drilling and grinding of bridge plugs, the amount of sand produced is relatively large. The combined oil nozzle has low erosion resistance, and the gap between the fluid self-pressure cap and the oil nozzle sleeve gradually erodes the oil nozzle sleeve, causing the oil nozzle sleeve to be punctured. The return flow channel becomes larger rapidly, the pressure drops rapidly, and a large amount of fracturing sand from the formation flows into the wellbore, which can easily cause the drilling plug tool to get stuck.
[0003] like Figure 2 As shown, the existing nozzle includes a nozzle seat 30, and a washer 40, a nozzle 10 and a nozzle cap 20 are provided in the nozzle seat 30. This type of combined nozzle has low erosion resistance, and gaps are easy to exist during assembly. The stability and efficiency of liquid flow are relatively poor, which can easily cause the drill plug tool to get stuck. Utility Model Content
[0004] Therefore, it is necessary to provide an integrated nozzle for high-pressure gas well blowout testing to address the aforementioned technical problems.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] An integrated nozzle for high-pressure gas well blowout testing is characterized in that the integrated nozzle for high-pressure gas well blowout testing includes a valve seat, the valve seat has a through nozzle channel at its center, the upper part of the nozzle channel has an upper opening, the outer wall of the upper opening has a plurality of sealing ring grooves, and the lower part of the nozzle channel has a trumpet-shaped nozzle opening.
[0007] In a preferred embodiment of this utility model, an O-ring is provided in the sealing ring groove.
[0008] In a preferred embodiment of this utility model, the valve seat, the oil nozzle channel, the sealing ring groove, the upper opening, and the oil nozzle opening are an integral structure.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] This utility model provides an integrated nozzle for high-pressure gas well blowout testing. Because the nozzle is an integrated structure, it completely avoids assembly gaps compared to existing modular nozzles, enhances fluid dynamics performance, thereby improving the stability and efficiency of liquid flow, has strong erosion resistance, is easy to replace, and is highly practical. Attached Figure Description
[0011] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the integrated nozzle for high-pressure gas well blowout testing according to this utility model.
[0013] Figure 2 This is a schematic diagram of the structure of an existing combined nozzle;
[0014] The markings in the diagram are explained as follows: 1. Valve seat; 2. Oil nozzle passage; 3. Sealing ring groove; 4. Upper opening; 5. Oil nozzle opening. Detailed Implementation
[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0016] like Figure 1 As shown, the integrated nozzle for high-pressure gas well blowout testing includes a valve seat 1, with a through nozzle channel 2 at the center of the valve seat 1. The upper part of the nozzle channel 2 has an upper opening 4, and the outer wall of the upper opening 4 has several sealing ring grooves 3. The lower part of the nozzle channel 2 has a trumpet-shaped nozzle opening 5.
[0017] An O-ring is provided inside the sealing ring groove 3.
[0018] It should be noted that the valve seat 1, the oil nozzle channel 2, the sealing ring groove 3, the upper opening 4, and the oil nozzle opening 5 are an integral structure.
[0019] The working principle of this integrated nozzle used for high-pressure gas well blowout testing is explained below.
[0020] Because this nozzle has a one-piece structure, it completely avoids assembly gaps compared to existing modular nozzles, enhances fluid dynamics performance, thereby improving the stability and efficiency of liquid flow, has strong erosion resistance, is easy to replace, and is highly practical.
[0021] Obviously, the embodiments described above are only some embodiments of this application, and not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application.
Claims
1. An integrated choke for high pressure gas well blowdown testing, characterized by, The integrated choke for blowout testing of high-pressure gas well comprises a valve seat (1), a choke passage (2) penetrating the valve seat (1), an upper opening (4) provided at the upper part of the choke passage (2), a plurality of sealing ring grooves (3) provided on the outer wall of the upper opening (4), and a trumpet-shaped choke opening (5) provided at the lower part of the choke passage (2), wherein the valve seat (1), the choke passage (2), the sealing ring grooves (3), the upper opening (4) and the choke opening (5) are integrated.
2. The integrated choke for high pressure gas well blowdown testing of claim 1, wherein, An O-ring is arranged in the sealing ring groove (3).