High-temperature testing device for downhole operation tool

Abstract

A high-temperature testing device for a downhole operation tool comprises a temperature testing box, a rotating rod, a chain wheel, a fluted disc, a circular limiting plate, a sliding placement box, an upper sliding column, an inner containing plate, a motor and a motor side chain wheel, a plurality of installation side cavities are formed in the side face of the temperature testing box, the two sets of installation side cavities are symmetrically arranged on the two sides of the temperature testing box, and heating rods are installed in the installation side cavities; the symmetrical heating rods use a control switch, the sliding placement box is matched with the temperature testing box, the sliding placement box is inserted into the temperature testing box and slides in the temperature testing box, the upper portion of the sliding placement box is connected with upper sliding columns, the two sets of upper sliding columns are distributed on the upper portion of the sliding placement box, and the upper portion of the temperature testing box is provided with a set of strip-shaped limiting strips. The strip-shaped limiting strip is provided with a strip-shaped sliding groove, the upper sliding column is matched with the strip-shaped sliding groove, the upper sliding column is inserted into the strip-shaped sliding groove, and the upper sliding column slides in the strip-shaped sliding groove.

Description

Technical Field

[0001] This utility model relates to the field of downhole working tools, and in particular to a high-temperature testing device for downhole working tools. Background Technology

[0002] An existing patent (publication number: CN118330369A) discloses a high-temperature aging test device, comprising a test chamber with an internal annular chamber and a rotating ring located within the annular chamber. The annular chamber and the rotating ring are coaxial, and the axis of the rotating ring is vertical. The rotating ring divides the annular chamber into an upper high-temperature chamber and a lower low-temperature chamber. An annular groove is formed on the inner wall of the annular chamber, coaxial with the rotating ring, and is composed of multiple wavy grooves. Multiple sliding openings are formed on the inner wall of the rotating ring, and a carrier is vertically slidable within each opening. The carrier has a sliding column that can slide within the annular groove. When the rotating ring rotates, the carrier pushes the sliding column to slide within the annular groove, and the carrier moves back and forth vertically, alternately entering the high-temperature chamber and the low-temperature chamber. The carrier is used to carry the product to be tested. However, this device only has two temperature chambers (low temperature and high temperature) in use, and can only perform tests at these two temperatures, without testing at intermediate transition temperatures. Summary of the Invention

[0003] This invention addresses the aforementioned shortcomings of existing technologies by providing a high-temperature testing device for downhole tools. This device allows for the detection of different temperatures of tools inside a temperature testing chamber by controlling the position of a sliding placement box within the chamber. It also allows for the insertion of multiple sliding placement boxes into the temperature testing chamber to detect different temperatures of different tools.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A high-temperature testing device for downhole tools includes a temperature testing chamber, a rotating rod, a sprocket, a toothed disc, a circular limiting plate, a sliding placement box, an upper sliding column, an inner holding plate, a motor, and a motor-side sprocket. The temperature testing chamber has multiple mounting cavities on its side, with two sets of mounting cavities symmetrically arranged on both sides of the temperature testing chamber. Heating rods are installed inside the mounting cavities. The sliding placement box is adapted to the temperature testing chamber and is inserted into the temperature testing chamber, sliding within the temperature testing chamber. An upper sliding column is connected to the upper part of the sliding placement box, with two sets of upper sliding columns distributed on the upper part of the sliding placement box. The upper part of the temperature testing chamber has a set of strip-shaped limiting strips with strip-shaped grooves. The upper sliding column is adapted to the strip-shaped grooves and is inserted into the strip-shaped grooves, sliding within the strip-shaped grooves.

[0006] The sliding placement box has side clearance openings on both sides of the sliding placement box. The inner holding plate is inserted into the sliding placement box and connected to the sliding placement box. The inner holding plate is placed in the middle of the sliding placement box. Multiple inner holding plates are distributed inside the sliding placement box. The upper part of the sliding placement box has multiple placement box teeth.

[0007] The temperature test chamber has a strip-shaped clearance hole at the top. The upper teeth of the placement box are inserted into the strip-shaped clearance hole and slide within it. The upper part of the strip-shaped limiting strip has multiple rectangular support blocks. The rotating rod is adapted to the rectangular support block and is inserted into it. The rotating rod rotates within the rectangular support block. The rotating rod is connected to a circular limiting plate. The side of the circular limiting plate fits against the rectangular support block. The circular limiting plates are symmetrically arranged on both sides of the rectangular support block. Beneficial effects

[0008] 1. This utility model involves installing heating rods inside the mounting side cavities. Two symmetrical mounting side cavities on both sides of the temperature test chamber form a group. The heating rods in one group of mounting side cavities are controlled by a controller to switch on and off and adjust their temperature. This allows several groups of heating rods to be set to different temperatures to perform high-temperature testing on the tools. A sliding placement box is inserted into the temperature test chamber, and multiple inner holding plates are installed and fixed inside the sliding placement box. There is a certain gap between adjacent inner holding plates, so it will not affect the heat transfer. In use, the tool to be tested is placed on the inner holding plate, and the sliding placement box is inserted into the temperature test chamber and moved to a position where the side clearance opening is opposite to the mounting side cavity. At this time, one group of heating rods works to heat the inside of the temperature test chamber and perform high-temperature testing on the tools inside the sliding placement box.

[0009] 2. In this utility model, the rotating rod passes through a rectangular support block. A set of rectangular support blocks supports and positions the rotating rod without affecting its rotation. A set of circular limiting plates limits the rotating rod, preventing it from sliding within the rectangular support block during high-temperature testing of downhole tools. This ensures the horizontal position of the gear disc, placing it in the middle of the upper part of the temperature testing chamber and meshing with the teeth on the placement box. The motor is mounted and fixed on the upper part of the temperature testing chamber. A chain is looped around the motor-side sprocket and sprocket. When the motor operates, the motor-side sprocket drives multiple gear discs to rotate simultaneously via the chain, causing the sliding placement box to move within the temperature testing chamber. By controlling the position of the sliding placement box within the temperature testing chamber, different temperatures can be detected for the tools inside. Alternatively, multiple sliding placement boxes can be inserted into the temperature testing chamber to detect different temperatures for different tools. Attached Figure Description

[0010] Figure 1 This is a first schematic diagram of a high-temperature testing device for downhole working tools according to the present invention.

[0011] Figure 2This is a second schematic diagram of a high-temperature testing device for downhole working tools according to the present invention.

[0012] Figure 3 This is a cross-sectional view of a high-temperature testing device for downhole working tools according to the present invention.

[0013] Figure 4 This is a schematic diagram of the temperature testing chamber structure described in this utility model.

[0014] Figure 5 This is a schematic diagram of the rotating rod structure described in this utility model.

[0015] Figure 6 This is a schematic diagram of the sliding placement box structure described in this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0017] Example 1:

[0018] A high-temperature testing device for downhole tools includes a temperature testing chamber 01, a rotating rod 07, a sprocket 08, a geared disc 09, a circular limiting plate 10, a sliding placement box 11, an upper sliding column 13, an inner holding plate 15, a motor 16, and a motor-side sprocket 17. The temperature testing chamber 01 has multiple mounting cavities 02 on its side, with two sets of mounting cavities 02 symmetrically arranged on both sides of the temperature testing chamber 01. Heating rods are installed inside the mounting cavities 02. Two symmetrical mounting cavities 02 on both sides of the temperature testing chamber 01 are grouped together, allowing the heating rods to be set to different temperatures for high-temperature testing of the tool. The sliding placement box 11 is adapted to the temperature testing chamber 01. 1. Insert the temperature test chamber 01. The sliding placement box 11 slides inside the temperature test chamber 01. Insert the sliding placement box 11 into the temperature test chamber 01 and move it to a position where the side clearance port 14 is opposite to the installation side cavity 02. At this time, a set of heating rods work to heat the inside of the temperature test chamber 01 and perform high-temperature testing on the tools inside the sliding placement box 11. The upper part of the sliding placement box 11 is connected to the upper sliding column 13. Two sets of upper sliding columns 13 are distributed on the upper part of the sliding placement box 11. The upper part of the temperature test chamber 01 has a set of strip-shaped limiting strips 03. The strip-shaped limiting strips 03 have strip-shaped sliding grooves 04. The upper sliding column 13 is adapted to the strip-shaped sliding groove 04. The upper sliding column 13 is inserted into the strip-shaped sliding groove 04 and slides inside the strip-shaped sliding groove 04.

[0019] Example 2:

[0020] The sliding placement box 11 of this utility model has a side clearance opening 14 on its side, which is distributed on both sides of the sliding placement box 11. An inner holding plate 15 is inserted into the sliding placement box 11 and connected to the sliding placement box 11. The inner holding plate 15 is placed in the middle of the sliding placement box 11. Multiple inner holding plates 15 are distributed inside the sliding placement box 11 and are installed and fixed inside the sliding placement box 11. There is a certain gap between adjacent inner holding plates 15, so it will not affect the heat transfer. When in use, the tool to be tested is placed on the inner holding plate 15. The upper part of the sliding placement box 11 has multiple upper placement box teeth 12.

[0021] Example 3:

[0022] The temperature testing chamber 01 of this utility model has a strip-shaped clearance hole 06 on its upper part. The upper tooth 12 of the placement box is inserted into the strip-shaped clearance hole 06 and slides within the strip-shaped clearance hole 06. The upper part of the strip-shaped limiting strip 03 has multiple rectangular support blocks 05. The rotating rod 07 is adapted to the rectangular support blocks 05. The rotating rod 07 is inserted into the rectangular support blocks 05 and rotates within the rectangular support blocks 05. A set of rectangular support blocks 05 supports and positions the rotating rod 07 without affecting its rotation. The rotating rod 07 is connected to a circular limiting plate 10. The side of the circular limiting plate 10 is in contact with the rectangular support blocks 05. The circular limiting plates 10 are symmetrically arranged on both sides of the rectangular support blocks 05. A set of circular limiting plates 10 limits the rotating rod 07, preventing the rotating rod 07 from sliding within the rectangular support blocks 05 during high-temperature testing of downhole tools, ensuring the horizontal position of the toothed disc 09, and placing the toothed disc 09 in the middle position of the upper part of the temperature testing chamber 01 and meshing with the upper tooth 12 of the placement box.

[0023] Example 4:

[0024] The rotating rod 07 of this utility model is connected to the toothed disc 09. The lower part of the toothed disc 09 meshes with the upper tooth 12 of the placement box. The rotating rod 07 is connected to the sprocket 08. The lower part of the motor 16 is connected to the temperature test chamber 01 by bolts. The motor 16 is installed and fixed on the upper part of the temperature test chamber 01. The rotating shaft of the motor 16 is connected to the motor side sprocket 17. The motor side sprocket 17 and the sprocket 08 are the same size. The chain 18 is sleeved on the motor side sprocket 17 and the sprocket 08. Multiple toothed discs 09 are evenly distributed on the upper part of the temperature test chamber 01. The chain 18 is sleeved on the motor side sprocket 17 and the sprocket 08. When the motor 16 works, the motor side sprocket 17 drives the multiple toothed discs 09 to rotate simultaneously through the chain 18, so that the sliding placement box 11 moves inside the temperature test chamber 01. By controlling the position of the sliding placement box 11 in the temperature test chamber 01, different temperatures can be detected for the tools inside. Alternatively, multiple sliding placement boxes 11 can be inserted into the temperature test chamber 01 to detect different temperatures for different tools.

[0025] Example 5:

[0026] The installation steps of this utility model are as follows: First, insert the rotating rod 07 into the rectangular support block 05, insert the toothed disc 09 and connect it to the rotating rod 07, connect the rotating rod 07 to the sprocket 08, connect the circular limiting plate 10 to the rotating rod 07, so that the two sides of the rectangular support block 05 are in contact with the circular limiting plate 10, put the chain 18 on the sprocket 08 and the motor side sprocket 17, connect the motor 16 to the temperature test chamber 01, insert the inner holding plate 15 and connect it to the sliding placement box 11, install the heating rod in the installation side cavity 02, connect the upper sliding column 13 to the sliding placement box 11, place the downhole working tools on the inner holding plate 15, insert the sliding placement box 11 into the temperature test chamber 01, so that the upper sliding column 13 is inserted into the strip groove 04, and mesh the toothed disc 09 with the upper tooth 12 of the placement box.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-temperature testing device for downhole tools, characterized in that: The system includes a temperature testing chamber (01), a rotating rod (07), a sprocket (08), a gear plate (09), a circular limiting plate (10), a sliding placement box (11), an upper sliding column (13), an inner holding plate (15), a motor (16), and a motor side sprocket (17). The temperature testing chamber (01) has multiple mounting cavities (02) on its side. Two sets of mounting cavities (02) are symmetrically arranged on both sides of the temperature testing chamber (01). Heating rods are installed inside the mounting cavities (02). The sliding placement box (11) is adapted to the temperature testing chamber (01). 11) Insert the temperature test chamber (01), slide the sliding placement box (11) inside the temperature test chamber (01), the upper part of the sliding placement box (11) is connected to the upper sliding column (13), two sets of upper sliding columns (13) are distributed on the upper part of the sliding placement box (11), the upper part of the temperature test chamber (01) has a set of strip-shaped limiting strips (03), the strip-shaped limiting strips (03) have strip-shaped grooves (04), the upper sliding column (13) is adapted to the strip-shaped grooves (04), the upper sliding column (13) is inserted into the strip-shaped grooves (04), and the upper sliding column (13) slides in the strip-shaped grooves (04).

2. The high-temperature testing device for downhole tools according to claim 1, characterized in that: The sliding placement box (11) has a side clearance opening (14) on its side. The side clearance opening (14) is distributed on both sides of the sliding placement box (11). The inner holding plate (15) is inserted into the sliding placement box (11). The inner holding plate (15) is connected to the sliding placement box (11). The inner holding plate (15) is placed in the middle position of the sliding placement box (11). Multiple inner holding plates (15) are distributed inside the sliding placement box (11). The upper part of the sliding placement box (11) has multiple placement box upper teeth (12).

3. The high-temperature testing device for downhole tools according to claim 2, characterized in that: The temperature test chamber (01) has a strip-shaped clearance hole (06) on the upper part. The upper tooth (12) of the placement box is inserted into the strip-shaped clearance hole (06) and slides in the strip-shaped clearance hole (06). The upper part of the strip-shaped limiting strip (03) has multiple rectangular support blocks (05). The rotating rod (07) is adapted to the rectangular support block (05). The rotating rod (07) is inserted into the rectangular support block (05) and rotates in the rectangular support block (05). The rotating rod (07) is connected to the circular limiting plate (10). The side of the circular limiting plate (10) is in contact with the rectangular support block (05). The circular limiting plate (10) is symmetrically arranged on both sides of the rectangular support block (05).

4. The high-temperature testing device for downhole tools according to claim 3, characterized in that: The rotating rod (07) is connected to the gear plate (09), the lower part of the gear plate (09) meshes with the upper tooth (12) of the placement box, the rotating rod (07) is connected to the sprocket (08), the lower part of the motor (16) is connected to the temperature test box (01) by bolts, and the motor (16) shaft is connected to the motor side sprocket (17).

5. A high-temperature testing device for downhole tools according to claim 4, characterized in that: The motor side sprocket (17) and sprocket (08) are the same size. The chain (18) is fitted on the motor side sprocket (17) and sprocket (08). Multiple toothed discs (09) are evenly distributed on the upper part of the temperature test chamber (01).

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