Wire-through electric capsule isotope release device

Abstract

The utility model relates to isotopic release technical field discloses the over line type electric capsule isotopic release ware, including round bar, the inside of round bar is provided with the ejection assembly, and the both ends of round bar are provided with the connecting assembly, and the ejection assembly includes the ejection cavity that sets up in the inside of round bar, and the inner wall of ejection cavity is fixedly connected with the baffle, and the inner wall of one end of ejection cavity is fixedly sleeved with high temperature motor, and the output of high temperature motor is fixedly connected with screw rod, and screw rod sets up through the baffle, and the other end of ejection cavity is movably sleeved with a plurality of round blocks, the utility model's beneficial effects are: through a plurality of independent round blocks bear isotopic capsule respectively, and each round block corresponds a capsule groove, and the transmission mode of cooperation high temperature motor drive screw rod can accurately control single round block to move to the ejection mouth position and realize capsule release, satisfy the demand of downhole multi -point detection, and can guarantee the amount of isotopic release of different places even and consistent, improve the accuracy and reliability of detection data.

Description

Technical Field

[0001] This utility model relates to the field of isotope release technology, specifically a wire-driven electric capsule isotope releaser. Background Technology

[0002] The through-line electric capsule isotope releaser is a specialized logging tool for oilfield formation testing. Its core function is to accurately and safely release isotope capsules in specific target layers downhole. It is also compatible with special scenarios where multi-parameter instruments are attached to the lower end of the releaser. This solves the technical pain point of traditional non-through-line releasers, which cannot simultaneously handle isotope release and lower-end instrument expansion. It provides key data support for oil well water injection for increased production and formation adsorption capacity monitoring.

[0003] For example, a capsule releaser with publication number CN220979479U can release large capsules. By controlling the start, stop, and direction of the motor, the outer cylinder slides up and down. During operation, the inlet and outlet of the inner and outer cylinders are aligned. Well fluid enters the inner cylinder, causing the capsules to dissolve upon contact with water and be discharged from the outlet, thus completing the isotope release. However, this causes sewage to enter the releaser from the well, affecting its secondary use. Furthermore, during the isotope release process, sewage enters the cavity where the isotope capsules are stored, causing all isotopes to be released simultaneously. When multiple points need to be detected downhole, it is impossible to release the same amount of isotopes at different locations. Utility Model Content

[0004] The purpose of this invention is to provide a wire-driven electric capsule isotope releaser to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wire-driven electric capsule isotope releaser, comprising a round rod, wherein an ejection assembly is provided inside the round rod, and connecting assemblies are provided at both ends of the round rod; The ejection assembly includes an ejection cavity formed inside a cylindrical rod. A partition is fixedly connected to the inner wall of the ejection cavity. A high-temperature motor is fixedly sleeved on the inner wall of one end of the ejection cavity. A screw is fixedly connected to the output end of the high-temperature motor and passes through the partition. Multiple cylindrical blocks are movably sleeved at the other end of the ejection cavity. A slot is formed on the lower surface of each cylindrical block. A screw hole is formed at the center of each cylindrical block. A capsule groove is formed on the upper surface of each cylindrical block. An arc groove is formed on the inner wall of the capsule groove. A spring is engaged on the inner wall of the arc groove. A cover plate is engaged at the opening of the capsule groove. Rubber rings are fixedly connected to both ends of each cylindrical block. An ejection port is formed on the outer wall of the cylindrical rod.

[0006] Preferably, the capsule slot corresponds to the ejection port, and the opening of the capsule slot is smaller than the opening of the ejection port.

[0007] Preferably, the outer wall of the circular block matches the inner wall of the ejection cavity, and the upper surface of the cover plate matches the inner wall of the ejection cavity.

[0008] Preferably, the connecting assembly includes an upper interface and a lower interface at both ends of the round rod. An upper protective cap is snapped into the interior of the upper interface, and a lower protective cap is snapped into the interior of the lower interface. A line-laying baffle is embedded in the inner wall of the upper and lower interfaces, and the line-laying baffle passes through the ejection cavity.

[0009] Preferably, the upper surface of the wire feeding stop is engaged inside the slot, and the wire feeding stop is embedded on the surface of the partition.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model uses multiple independent round blocks to carry isotope capsules respectively. Each round block corresponds to a capsule slot. With the transmission method of the high temperature motor driving the screw, the movement of a single round block to the ejection port position can be precisely controlled to release the capsule, which meets the needs of multi-point detection downhole and can ensure that the amount of isotopes released at different locations is uniform and consistent, thereby improving the accuracy and reliability of the detection data.

[0011] (2) The present invention forms a good sealing structure by tightly fitting the rubber rings at both ends of the round block to the inner wall of the ejection cavity, which can effectively prevent sewage from entering the capsule slot and ejection cavity, avoid the isotope capsule from dissolving or being contaminated in advance, and protect the internal components of the releaser, ensuring that the equipment can be used twice or even multiple times, and reducing operating costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the circular block structure of this utility model; Figure 5 This is a schematic diagram of the arc groove structure of this utility model.

[0013] In the diagram: 1. Round rod; 2. Ejection assembly; 21. Ejection chamber; 22. Partition plate; 23. High-temperature motor; 24. Screw; 25. Round block; 26. Slot; 27. Screw hole; 28. Capsule slot; 29. ​​Arc groove; 210. Spring; 211. Cover plate; 212. Rubber ring; 213. Ejection port; 3. Connecting assembly; 31. Upper interface; 32. Upper protective cap; 33. Lower interface; 34. Lower protective cap; 35. Line release bar. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 The present invention provides the following technical solution: Example 1: A wire-driven electric capsule isotope releaser includes a round rod 1, an ejection assembly 2 is provided inside the round rod 1, and connecting assemblies 3 are provided at both ends of the round rod 1; The ejection assembly 2 includes an ejection cavity 21 inside the round rod 1. A partition 22 is fixedly connected to the inner wall of the ejection cavity 21. A high-temperature motor 23 is fixedly sleeved on the inner wall of one end of the ejection cavity 21. A screw 24 is fixedly connected to the output end of the high-temperature motor 23. The screw 24 passes through the partition 22. Multiple round blocks 25 are movably sleeved on the other end of the ejection cavity 21. A slot 26 is opened on the lower surface of the round block 25. A screw hole 27 is opened at the center of the round block 25. A capsule groove 28 is opened on the upper surface of the round block 25. An arc groove 29 is opened on the inner wall of the capsule groove 28. A spring 210 is snapped on the inner wall of the arc groove 29. A cover plate 211 is snapped on the opening of the capsule groove 28. Rubber rings 212 are fixedly connected to both ends of the round block 25. An ejection port 213 is opened on the outer wall of the round rod 1.

[0016] The capsule slot 28 corresponds to the ejection port 213, and the opening of the capsule slot 28 is smaller than the opening of the ejection port 213.

[0017] The outer wall of the circular block 25 matches the inner wall of the ejection cavity 21, and the upper surface of the cover plate 211 matches the inner wall of the ejection cavity 21.

[0018] In use, firstly, an isotope capsule is placed into the capsule slot 28 of the circular block 25. During the capsule placement process, the spring 210 in the arc groove 29 undergoes elastic deformation due to the capsule's compression, thus tightly clamping the capsule and fixing it in place. Then, the cover plate 211 is snapped into the opening of the capsule slot 28 to seal and protect the capsule. Next, the high-temperature motor 23 controls the screw 24 to drive the circular block 25 through the ejection port 213, causing the circular block 25 with the capsule to be secured inside the ejection chamber 21. When it is necessary to release the isotope capsule at a specific target layer, a start command is sent to the high-temperature motor 23 via the ground control system. After the high-temperature motor 23 starts, it drives the screw 24 to rotate. Because the circular block 25 is threadedly connected to the screw 24 through the screw hole 27, and the slot 26 cooperates with the wire release stop 35 to restrict the rotation of the circular block 25, the rotation of the screw 24... The movement of the round block 25 along the axial direction of the ejection cavity 21 will be transformed into a linear movement. When the target round block 25 moves to the position corresponding to the ejection port 213 on the outer wall of the round rod 1 in its capsule slot 28, the cover plate 211 at the opening of the capsule slot 28 will be released from the capsule slot 28 due to the loss of the constraint of the inner wall of the ejection cavity 21 and the action of the downhole fluid pressure or the slight deformation of the capsule itself. At this time, the isotope capsule in the capsule slot 28 will be ejected from the capsule slot 28 and enter the downhole formation through the ejection port 213 under the elastic release force of the spring 210 and the impact of the downhole fluid, thus completing the isotope release at this position. After the target layer is detected, if it is necessary to release isotopes in other target layers, the surface control system will continue to control the operation of the high-temperature motor 23 to drive the next round block 25 to the ejection port 213 position, repeat the above release process, and achieve multi-point precise release.

[0019] Example 2: The technical solution of this example, which differs from that of Example 1, includes: the connecting component 3 includes an upper interface 31 and a lower interface 33 at both ends of the round rod 1. An upper protective cap 32 is snapped into the inside of the upper interface 31, and a lower protective cap 34 is snapped into the inside of the lower interface 33. A line-laying baffle 35 is embedded on the inner wall of the upper interface 31 and the lower interface 33. The line-laying baffle 35 passes through the ejection cavity 21.

[0020] The upper surface of the wire feeding stop 35 is engaged inside the slot 26, and the wire feeding stop 35 is embedded on the surface of the partition 22.

[0021] In use, the release device is connected and fixed to the logging cable and the multi-parameter instrument at the lower end through the upper interface 31 and the lower interface 33. After checking the sealing and firmness of each connection, the entire device is lowered to the predetermined working area downhole. After all isotope release operations are completed, the entire device is retrieved to the surface through the logging cable. The upper cap 32 and the lower cap 34 are removed, and the round block 25 in the ejection chamber 21 is taken out. The round block 25, capsule groove 28, spring plate 210 and other components are cleaned and maintained. The new cover plate 211 and rubber ring 212 are replaced. After that, the capsule can be refilled for the next operation.

[0022] 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. A wire-driven electric capsule isotope releaser, comprising a round rod (1), wherein an ejection assembly (2) is disposed inside the round rod (1), and connecting assemblies (3) are disposed at both ends of the round rod (1), characterized in that, The ejection assembly (2) includes an ejection cavity (21) formed inside the round rod (1). A partition (22) is fixedly connected to the inner wall of the ejection cavity (21). A high-temperature motor (23) is fixedly sleeved on the inner wall of one end of the ejection cavity (21). A screw (24) is fixedly connected to the output end of the high-temperature motor (23). The screw (24) passes through the partition (22). A plurality of round blocks (25) are movably sleeved on the other end of the ejection cavity (21). The lower surface of the round blocks (25) is formed with... There is a slot (26), a screw hole (27) is provided at the center of the round block (25), a capsule groove (28) is provided on the upper surface of the round block (25), an arc groove (29) is provided on the inner wall of the capsule groove (28), a spring (210) is attached to the inner wall of the arc groove (29), a cover plate (211) is attached to the opening of the capsule groove (28), rubber rings (212) are fixedly connected to both ends of the round block (25), and an ejection port (213) is provided on the outer wall of the round rod (1).

2. The wire-driven electric capsule isotope releaser according to claim 1, characterized in that: The capsule slot (28) corresponds to the ejection port (213), and the opening of the capsule slot (28) is smaller than the opening of the ejection port (213).

3. The wire-driven electric capsule isotope releaser according to claim 1, characterized in that: The outer wall of the circular block (25) matches the inner wall of the ejection cavity (21), and the upper surface of the cover plate (211) matches the inner wall of the ejection cavity (21).

4. The wire-driven electric capsule isotope releaser according to claim 1, characterized in that: The connecting component (3) includes an upper interface (31) and a lower interface (33) at both ends of the round rod (1). An upper protective cap (32) is snapped into the inside of the upper interface (31), and a lower protective cap (34) is snapped into the inside of the lower interface (33). A line-laying baffle (35) is embedded on the inner wall of the upper interface (31) and the lower interface (33), and the line-laying baffle (35) is set through the ejection cavity (21).

5. The wire-driven electric capsule isotope releaser according to claim 4, characterized in that: The upper surface of the wire feeding stop (35) is engaged inside the slot (26), and the wire feeding stop (35) is embedded on the surface of the partition (22).

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