Recycling probe rod for salvaging throttler
By designing a recycling probe for salvage throttle, the probe and rod structure are used to insert the central tube of the throttle under the action of a mechanical shock, and the abutment of the throttle is controlled by electric push rods, the problems of difficulty and high cost of salvage of the downhole throttle are solved, and convenient recycling and efficient operation of the throttle are achieved.
Patent Information
- Application Number
- CN202422760356.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-11-13
AI Technical Summary
In the prior art, downhole throttles are difficult to salvage and have low success rate, especially during the gas field mining process, which is difficult to salvage due to sand output, scale formation, corrosion and other reasons. The existing probe rods are costly and complex to operate.
A recycling probe rod for salvage throttle is designed, using a probe, a clamp rod, an electric push rod and a spring structure, and inserts the central tube of the throttle through a mechanical shock. The clamp rod is squeezed with a trapezoidal push block to make it firmly abut the inner wall of the central tube. Combined with the electric push rod and signal transmission module control, the throttle is achieved conveniently bringing out the throttle.
The throttle salvage process is simplified, the operation complexity and cost are reduced, the salvage success rate is improved, the downhole throttle is timely recovered, and the risk of low gas well production or shutdown is avoided.
Smart Images
Figure CN223215230U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of throttle recovery equipment, in particular to a recovery probe rod used for salvaging a throttle. Background Art
[0002] A throttle is a component in a hydraulic system that regulates fluid flow and creates a pressure drop. Various throttles are used in different aspects of industrial construction, each playing their own role in our industry.
[0003] In order to adapt to the development of major oil fields, downhole choke technology has been researched and developed as a new technology based on the well conditions of different geographical blocks of each oil field, resulting in a wide variety of downhole choke types. Downhole chokes can be roughly divided into two types: movable and fixed. The movable downhole choke can be lowered into any well section as needed, and the seat seal position is adjustable, making it particularly suitable for old wells that require throttling. The lowering position of the fixed downhole choke is determined by the position of the downhole mandrel. It can withstand a higher pressure difference and has a good sealing effect, making it suitable for use in newly commissioned wells.
[0004] When gas field production enters the middle and late stages, it is necessary to implement drainage and gas production measures, so the choke needs to be salvaged, generally using wireline operations. However, due to sand production, scaling, corrosion and other reasons in the well during gas field production, some wells have problems such as difficulty in salvaging the downhole choke and low success rate. If the downhole choke cannot be salvaged in time, some low-pressure water-producing gas wells may not be able to implement drainage and gas production measures such as bubble drainage, velocity string, and plunger gas lift, resulting in low gas well production or well shutdown. The salvage probe in the existing technology has the disadvantages of high manufacturing cost and complex operation. Utility Model Content
[0005] The utility model aims to provide a recovery probe for salvaging a throttle, which has the characteristics of making the clamping rod firmly abut against the inner wall of the central tube, making it more convenient to take out the throttle, and has the characteristics of simple structure and easy operation.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a recovery probe for salvaging a throttle, comprising a probe body, one end of the probe body being fixedly connected to a probe, an installation cavity being provided inside the probe, and limiting grooves communicating with the installation cavity being provided on both sides of the outer wall of the probe, a clamping rod being movably connected to the interior of the two limiting grooves, a push block being provided inside the installation cavity, an electric push rod being installed inside the probe body, the output end of the electric push rod extending to the interior of the installation cavity and fixedly connected to the push block, a connecting plate being fixedly connected to the bottom ends of the outer walls of the two clamping rods, and a spring being fixedly connected between the two connecting plates and the inner wall of the installation cavity.
[0007] In order to facilitate the outward squeezing of the clamping rod, as a preferred recovery probe for salvaging a throttle of the present invention, the push block has a trapezoidal cross-section, and the side of the clamping rod close to the push block is an inclined surface matching the push block.
[0008] In order to play a diversion role, as a preferred recovery probe rod for salvaging a throttle of the utility model, vertically arranged diversion grooves are opened on both the front and rear sides of the outer wall of the probe.
[0009] In order to guide the recovery probe, as a preferred recovery probe for salvaging a throttle of the present invention, a plurality of guide blocks are fixedly connected to the outer wall of the probe body.
[0010] In order to facilitate the quick connection with the mechanical jar or universal joint of the salvage device, as a preferred recovery probe for salvaging the throttle of the utility model, the top end of the probe body is fixedly connected with a connector.
[0011] In order to remotely control the electric push rod, as a preferred recovery probe rod for salvaging a throttle of the utility model, a battery and a signal transmission module electrically connected to the electric push rod are provided inside the probe rod body.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] The probe is a radially outward protruding structure surrounding the circumference of the probe rod body. It is used to be inserted into the center tube of the throttle under the action of a mechanical jar. Under the shock of the mechanical jar, the probe can discharge the liquid and mud in the center tube, clean the corroded parts on the center tube, enter the interior of the center tube and get stuck in the center tube, so that the throttle can be brought out when the probe rod body is lifted. When the probe enters the interior of the center tube, the external control system controls the electric push rod to start through the signal transmission module, pushing the push block downward. The cross-section of the push block is trapezoidal, thereby squeezing the two clamping rods at the same time, so that the two clamping rods extend outward inside the limit groove, so that the clamping rods are firmly in contact with the inner wall of the center tube, playing a clamping role, thereby making it easier to bring out the throttle. Springs are fixedly connected between the two connecting plates and the inner wall of the mounting cavity. When the push block rises, the clamping rods are retracted and reset under the tension of the springs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the overall external structure diagram of the utility model;
[0015] Figure 2 This is a cross-sectional structural diagram of the fishing head of the utility model;
[0016] Figure 3 This is a schematic diagram of the utility model in which the clamping rod is extended.
[0017] In the figure: 1. Probe body; 2. Probe; 3. Mounting cavity; 4. Limiting groove; 5. Clamping rod; 6. Push block; 7. Electric push rod; 8. Connecting plate; 9. Spring; 10. Guide groove; 11. Guide block; 12. Connector. DETAILED DESCRIPTION
[0018] See also Figures 1 to 3 A recovery probe for salvaging a throttle comprises a probe body 1, one end of the probe body 1 is fixedly connected to a probe 2, an installation cavity 3 is opened inside the probe 2, and limiting grooves 4 communicating with the installation cavity 3 are opened on both sides of the outer wall of the probe 2, and the interiors of the two limiting grooves 4 are movably connected with a clamping rod 5, a push block 6 is provided inside the installation cavity 3, an electric push rod 7 is installed inside the probe body 1, and the output end of the electric push rod 7 extends to the interior of the installation cavity 3 and is fixedly connected to the push block 6, the outer wall bottom ends of the two clamping rods 5 are fixedly connected to a connecting plate 8, and a spring 9 is fixedly connected between the two connecting plates 8 and the inner wall of the installation cavity 3.
[0019] In this embodiment: the probe 2 is a radially outward protruding structure surrounding the circumference of the probe body 1. It is used to be inserted into the central tube of the throttle under the action of a mechanical jar. Under the shock of the mechanical jar, the probe 2 can discharge the liquid and sediment in the central tube, clean the corroded parts on the central tube, enter the interior of the central tube and be stuck in the central tube, so that the throttle can be taken out when the probe body 1 is lifted. After the probe 2 enters the interior of the central tube, the external control system controls the electric push rod 7 to start through the signal transmission module, pushing the push block 6 downward. The cross-section of the push block 6 is a trapezoidal structure, thereby squeezing the two clamping rods 5 at the same time, so that the two clamping rods 5 extend outward inside the limit groove 4, so that the clamping rods 5 firmly abut against the inner wall of the central tube, playing a clamping role, thereby making it easier to take out the throttle. Springs 9 are fixedly connected between the two connecting plates 8 and the inner wall of the installation cavity 3. When the push block 6 rises, the clamping rod 5 is retracted and reset under the tension of the spring 9.
[0020] As a technical optimization solution of the present invention, the cross section of the push block 6 is a trapezoidal structure, and the side of the clamping rod 5 close to the push block 6 is an inclined surface matching the push block 6.
[0021] In this embodiment, the cross section of the push block 6 is a trapezoidal structure, and the side of the clamping rod 5 close to the push block 6 is an inclined surface matching the push block 6, so that the clamping rod 5 is driven to extend and retract through the movement of the push block 6.
[0022] As a technical optimization solution of the present invention, vertically arranged guide grooves 10 are provided on both the front and rear sides of the outer wall of the probe 2 .
[0023] In this embodiment, the guide groove 10 can drain the liquid and sediment therein when the salvage probe 2 enters the central tube of the throttle, so that the liquid and sediment can be discharged from the central tube, preventing the probe 2 from entering the central tube due to excessive liquid pressure.
[0024] As a technical optimization solution of the present invention, a plurality of guide blocks 11 are fixedly connected to the outer wall of the probe body 1 .
[0025] In this embodiment, the guide block 11 can guide the probe body 1 when the probe body 1 is placed into the well.
[0026] As a technical optimization solution of the present invention, a connector 12 is fixedly connected to the top of the probe body 1 .
[0027] In this embodiment, a connector 12 is fixedly connected to the top of the probe body 1, which can realize a quick connection between the probe body 1 and a mechanical jar or a universal joint of the salvage device.
[0028] As a technical optimization solution of the present invention, a battery and a signal transmission module electrically connected to the electric push rod 7 are provided inside the probe body 1 .
[0029] In this embodiment, it is convenient for the external control system to control the start of the electric push rod 7 through the signal transmission module.
[0030] Working principle: The probe 2 is a radially outward protruding structure surrounding the circumference of the probe body 1. It is used to be inserted into the central tube of the throttle under the action of a mechanical jar. Under the shock of the mechanical jar, the probe 2 can discharge the liquid and sediment in the central tube, clean the corroded parts on the central tube, enter the interior of the central tube and get stuck in the central tube, so that the throttle can be taken out when the probe body 1 is lifted. When the probe 2 enters the interior of the central tube, the external control system controls the electric push rod 7 to start through the signal transmission module, pushing the push block 6 downward. The cross-section of the push block 6 is a trapezoidal structure, thereby squeezing the two clamping rods 5 at the same time, so that the two clamping rods 5 extend outward inside the limit groove 4, so that the clamping rods 5 firmly abut against the inner wall of the central tube, playing a clamping role, thereby making it easier to take out the throttle. Springs 9 are fixedly connected between the two connecting plates 8 and the inner wall of the installation cavity 3. When the push block 6 rises, the clamping rod 5 is retracted and reset under the tension of the spring 9.
[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A recovery probe for salvaging a throttle, comprising a probe body (1), characterized in that: One end of the probe rod body (1) is fixedly connected to a probe (2), an installation cavity (3) is provided inside the probe (2), and limiting grooves (4) communicating with the installation cavity (3) are provided on both sides of the outer wall of the probe (2), and the insides of the two limiting grooves (4) are movably connected to a clamping rod (5), and a push block (6) is provided inside the installation cavity (3). An electric push rod (7) is installed inside the probe rod body (1), and the output end of the electric push rod (7) extends to the inside of the installation cavity (3) and is fixedly connected to the push block (6). The bottom ends of the outer walls of the two clamping rods (5) are fixedly connected to a connecting plate (8), and a spring (9) is fixedly connected between the two connecting plates (8) and the inner wall of the installation cavity (3).
2. The recovery probe for salvaging a choke according to claim 1, characterized in that: The cross section of the push block (6) is a trapezoidal structure, and the side of the clamping rod (5) close to the push block (6) is an inclined surface matching the push block (6).
3. The recovery probe for salvaging a choke according to claim 1, characterized in that: Vertically arranged flow guide grooves (10) are provided on both the front and rear sides of the outer wall of the probe (2).
4. The recovery probe for salvaging a choke according to claim 1, characterized in that: A plurality of guide blocks (11) are fixedly connected to the outer wall of the probe body (1).
5. The recovery probe for salvaging a choke according to claim 1, characterized in that: The top end of the probe body (1) is fixedly connected to a connector (12).
6. The recovery probe for salvaging a choke according to claim 1, characterized in that: A battery and a signal transmission module electrically connected to the electric push rod (7) are provided inside the probe body (1).