Axial-flow type underground gas-driven turbine vibrator

Abstract

The utility model relates to the technical field of vibrators, and discloses an axial flow type underground gas-driven turbine vibrator, which comprises a protective shell and a three-stage turbine set, the three-stage turbine set comprises a central shaft, a rotor base and rotor turbine blades, three turbine parts with increased sizes are sequentially arranged on the side surface of the central shaft from the front end to the rear end, and the rotor base is arranged on the side surface of the central shaft. The rotor base is arranged at the front end of each stage of turbine part and is rotationally connected with the center shaft through a bearing, the rotor turbine blades are fixedly connected to the side faces of the rotor bases, and the eccentric rotating discs are fixedly connected to the rear ends of the rotor bases; a circle of stator turbine blades are arranged in the protective shell and located on the front side of the rotor turbine blades of each stage of turbine component. The axial-flow type pneumatic turbine is driven to rotate by arranging the three-stage turbine set, the stator, the eccentric rotating disc and other components and taking compressed air as a power source, the compressed air can be recycled, the cost is reduced, electrical equipment is not involved, and potential safety hazards such as explosion are avoided.

Description

Technical Field

[0001] This utility model relates to the field of vibrator technology, specifically to an axial-flow downhole gas-driven turbine vibrator. Background Technology

[0002] During oil extraction, problems such as blockage and adhesion of materials in the well may occur. Vibrators can promote the flow of crude oil, increase the production of oil wells, and improve production efficiency.

[0003] In existing technologies, due to the limited space and harsh environment of the mine, vibrators are difficult to perform ideally, and the accompanying electrical equipment increases safety hazards in the mine. Therefore, it is necessary to improve the existing devices. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an axial-flow downhole gas-driven turbine vibrator, which solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an axial-flow downhole gas-driven turbine vibrator, comprising a protective shell and a three-stage turbine assembly, characterized in that: an air intake channel is provided at the front end of the protective shell, and a connecting thread is provided on the outer surface of the air intake channel; the three-stage turbine assembly comprises a central shaft, a rotor base, and rotor turbine blades; three turbine components of increasing size are sequentially arranged on the side of the central shaft from the front end to the rear end; the front end of each turbine component is the rotor base, which is rotatably connected to the central shaft via bearings; the rotor turbine blades are fixedly connected to the side of the rotor base; an eccentric rotating disk is fixedly connected to the rear end of each rotor base; a ring of stator turbine blades is provided inside the protective shell in front of the rotor turbine blades of each turbine component; the three-stage turbine assembly is fixedly connected to the protective shell via connecting rods; and an air inlet is provided at the rear end of the protective shell.

[0006] Preferably, the rotor base has an eccentric block inside, and the eccentric rotating disk will vibrate during rotation.

[0007] Preferably, the front end of the central shaft is provided with a flow-rectifying inclined surface, and the flow direction of the stator turbine blade is perpendicular to the rotor turbine blade adjacent to its rear side.

[0008] Preferably, the inner radius of the protective shell varies with the size of the internal turbine components, the overall device is an assembled structure, and key parts such as the turbine and bearings are manufactured using high-quality and advanced processes.

[0009] This utility model provides an axial-flow downhole gas-driven turbine vibrator, which has the following advantages:

[0010] (1) This utility model sets up a three-stage turbine group, stator and eccentric rotating disk and other components, and uses compressed air as the power source to drive the axial flow pneumatic turbine to rotate. The energy conversion efficiency is high, and the compressed air can be recycled, which reduces energy consumption and operating costs to a certain extent. It does not involve electrical equipment and fire sources, thus avoiding safety hazards caused by electrical faults or sparks in the well, such as explosions and fires.

[0011] (2) This utility model, by setting up a rectifier ramp, stator and rotor turbine blades, and an axial flow design, allows the airflow to flow axially and interact with the turbine blades, more effectively converting the energy of the airflow into the mechanical energy of the turbine, and then into vibration energy. Under the CCUS framework, it can effectively treat and store CO2 through chemical flooding, and also drive a vibrator to vibrate to achieve the effect of vibration oil recovery. Combining the two methods not only improves the oilfield recovery rate, but also achieves the goal of environmental protection. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the internal structure of the protective shell of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the side of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of the rear structure of this utility model;

[0016] In the diagram: 1. Protective casing; 2. Three-stage turbine assembly; 3. Intake passage; 4. Connecting thread; 5. Connecting rod; 6. Central shaft; 7. Rotor base; 8. Rotor turbine blades; 9. Eccentric rotating disk; 10. Stator; 11. Air inlet; 12. Rectifying ramp. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4As shown, this utility model provides a technical solution: an axial flow downhole gas-driven turbine vibrator, including a protective shell 1 and a three-stage turbine assembly 2. The front end of the protective shell 1 is provided with an air inlet channel 3, and the outer surface of the air inlet channel 3 is provided with a connecting thread 4, which can be stably connected to the gas injection pipe to ensure the sealing and connection strength of the entire system, laying the foundation for subsequent operations. The three-stage turbine assembly 2 includes a central shaft 6, a rotor base 7, and rotor turbine blades 8. Three turbine components of increasing size are arranged sequentially from the front end to the rear end on the side of the central shaft 6. The front end of each turbine component is a rotor base 7, which is rotatably connected to the central shaft 6 through bearings. The rotor turbine blades 8 are fixedly connected to the side of the rotor base 7. The rear end of each rotor base 7 is fixedly connected with an eccentric rotating disk 9, which can enhance the vibration effect. Inside the protective shell 1, a ring of stator turbine blades 10 is provided on the front side of the rotor turbine blades 8 of each turbine component for guiding the airflow. The three-stage turbine assembly 2 is fixedly connected to the protective shell 1 through a connecting rod 5. The rear end of the protective shell 1 is provided with an air inlet 11 for gas ejection.

[0019] Furthermore, the rotor base 7 has an eccentric block inside, and the eccentric rotating disk 9 will generate vibration during rotation. This vibration is transmitted to the oil layer through the connection between the vibrator and the pipeline, so as to achieve the purpose of vibration oil extraction and realize the function of gas-driven vibration.

[0020] Furthermore, a flow-rectifying inclined surface 12 is provided at the front end of the central shaft 6, which can effectively rectify and guide the high-speed airflow. The flow direction of the stator turbine blade 10 is perpendicular to the rotor turbine blade 8 adjacent to its rear side. The turbine blades interact with each other, which more effectively converts the energy of the airflow into the mechanical energy of the turbine.

[0021] Furthermore, the inner radius of the protective shell 1 varies with the size of the internal turbine components. The overall device is an assembled structure with a compact overall structure, which facilitates installation and operation in confined downhole spaces. Key components such as the turbine and bearings are manufactured using high-quality and advanced processes, ensuring high reliability.

[0022] In summary, the working process of this utility model is as follows: First, the vibrator is securely connected to the gas injection pipe via the connecting threaded connection 4. Using the laid pipe, CO2 gas stored in the ground-based gas storage tank is safely and stably transported to the vibrator through the air intake channel 3. The protective shell 1 provides the airflow channel. The high-pressure airflow first reaches the rectifying inclined plane 12, where, under its effective rectification and guidance, it enters the three-stage turbine assembly 2 uniformly and stably. Here, the gas undergoes a three-stage process of decompression, expansion, and acceleration by the three-stage turbine assembly within the shell. Each stage of the turbine structure, based on fluid dynamics principles, gradually reduces the gas pressure while significantly increasing its speed, thereby efficiently converting the gas's internal energy into kinetic energy, providing the power source for subsequent vibration. The high-speed CO2 airflow forms a specific flow field under the guidance of the stator turbine blades 10, which in turn drives the rotor turbine blades 8 to rotate the rotor base 7 and the eccentric rotating disk 9 at high speed. During rotation, strong and stable vibrations are generated. After vibration is complete, the CO2 airflow is ejected from the gas inlet 11 and then enters the formation along the gas injection pipe.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An axial-flow downhole gas-driven turbine vibrator, comprising a protective housing (1) and a three-stage turbine assembly (2), characterized in that: The protective housing (1) has an air intake channel (3) at its front end and a connecting thread (4) on its outer surface. The three-stage turbine assembly (2) includes a central shaft (6), a rotor base (7), and rotor turbine blades (8). The central shaft (6) has three turbine components with increasing size arranged sequentially from the front end to the rear end. The front end of each turbine component is the rotor base (7), which is rotatably connected to the central shaft (6) through a bearing. The rotor base (7) is fixedly connected to the rotor turbine blades (8) on its side. The rear end of the rotor base (7) is fixedly connected to an eccentric rotating disk (9). The protective housing (1) has a ring of stator turbine blades (10) arranged inside the protective housing (1) in front of the rotor turbine blades (8) of each turbine component. The three-stage turbine assembly (2) is fixedly connected to the protective housing (1) through a connecting rod (5). The rear end of the protective housing (1) has an air inlet (11).

2. The axial-flow downhole gas-driven turbine vibrator according to claim 1, characterized in that: The rotor base (7) has an eccentric block inside, and the eccentric rotating disk (9) will vibrate during rotation.

3. The axial-flow downhole gas-driven turbine vibrator according to claim 1, characterized in that: The front end of the central shaft (6) is provided with a flow-rectifying inclined surface (12), and the flow direction of the stator turbine blade (10) is perpendicular to the rotor turbine blade (8) adjacent to its rear side.

4. An axial-flow downhole gas-driven turbine vibrator according to claim 1, characterized in that... The inner radius of the protective shell (1) varies with the size of the internal turbine components. The overall device is an assembled structure, and key parts such as the turbine and bearings are manufactured using high-quality and advanced processes.

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