A two-layer platform drill pipe filter screen putting device

By designing a two-layer drill pipe filter screen insertion device, the filter screen can be safely and quickly inserted using a support mechanism and a rope system. This solves the problem of the filter screen being difficult to insert directly into the drill pipe column female joint, reduces the risks of high-altitude operations and well control, and improves work efficiency.

CN224532701UActive Publication Date: 2026-07-21SINOPEC OILFIELD SERVICE CORPORATION +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOPEC OILFIELD SERVICE CORPORATION
Filing Date
2025-08-24
Publication Date
2026-07-21

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Abstract

The utility model relates to the technical field of oil drilling, especially a two-layer platform drill pipe filter screen putting device, including support mechanism, support mechanism includes support rod, the upper surface fixed connection of support rod has connecting seat, the surface fixed connection of the clamping band fixed seat has second clamping band, the surface fixed connection of the sheath fixed seat has spring rod, the surface fixed connection of the sheath fixed seat has spring body, the tail end fixed connection of spring body has right side valve, the surface fixed connection of spring rod has left side valve, the surface fixed connection of left side valve has the surface fixed connection of first clamping band first fixed block with the surface fixed connection of right side valve, the surface fixed connection of first fixed block has pull rope body handle fixed ring's inner wall with the surface fixed connection of support rod, the surface swing joint of handle fixed ring has rotating rod, the utility model discloses, can guarantee personnel safe operation, avoid personnel to violate the regulation.
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Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, and in particular to a device for inserting a filter screen into a two-layer bench drill pipe. Background Technology

[0002] During oil drilling, when using screw drills, a filter screen needs to be added inside the drill pipe to ensure that the drilling fluid is clean and free of impurities. When using a top drive with a stand, the filter screen needs to be removed from the upper female joint of the lower drill pipe stand and carried to the second platform via a traveling block. The derrickman then removes the filter screen from the traveling block and inserts it into the upper female joint of the drill pipe stand. However, the drill pipe stand is 28.6 meters high, the second platform where the personnel stand is about 26 meters high, and the filter screen itself is 80 centimeters long. This means that the personnel's standing position is about 2.6 meters away from the drill pipe stand joint, making it impossible to insert directly.

[0003] One method for derrick operators is to place the filter screen while standing on the railing, but this carries high safety risks, especially in rainy weather, which can easily lead to slips and falls. Another method involves lowering the traveling block into a rat hole after hoisting the drill string, then raising it back up to connect the drill string and perform the stand-up assembly. This is not only time-consuming and labor-intensive, but also poses well control risks during drilling in oil and gas formations, complicating the downhole situation. Utility Model Content

[0004] In view of this, the present invention provides a two-layer drill pipe filter screen placement device. The main technical problem to be solved is that: after the derrickman places the filter screen, the drill string is lifted up to perform the column addition operation, which is not only time-consuming and labor-intensive, but may also cause well control risks during drilling in the downhole oil and gas layer.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a two-layer bench drill rod filter screen insertion device, comprising a support mechanism, the support mechanism including a support rod, a connecting seat fixedly connected to the upper surface of the support rod, a fixing mechanism mounted on the surface of the connecting seat, the fixing mechanism including a clamp fixing seat, a second clamp fixedly connected to the surface of the clamp fixing seat, an elastic mechanism mounted on the surface of the second clamp, the elastic mechanism including a protective sleeve fixing seat, the surface of the protective sleeve fixing seat being fixedly connected to the surface of the clamp fixing seat, a spring rod sleeved on the surface of the protective sleeve fixing seat, and a spring body fixedly connected to the surface of the protective sleeve fixing seat. A right-side valve is fixedly connected to the end of the spring body, a left-side valve is fixedly connected to the surface of the spring rod, a first clamp is fixedly connected to the surface of the left-side valve, a tensioning mechanism is installed on the surface of the right-side valve, the tensioning mechanism includes a first fixing block, the surface of the first fixing block is fixedly connected to the surface of the right-side valve, a pull rope body is fixedly connected to the surface of the first fixing block, a control component is installed on the surface of the support rod, the control component includes a handle fixing ring, the inner wall of the handle fixing ring is fixedly connected to the surface of the support rod, a rotating rod is movably connected to the surface of the handle fixing ring, and a pull rope handle is fixedly connected to the surface of the rotating rod.

[0006] By adopting the above technical solution, pressing the pull rope handle on the support rod and pulling the pull rope body will cause the right valve to compress the spring body. The spring rod will move to the left to open the valve, loosen the first clamp, and separate the filter screen body from the first clamp, allowing it to fall into the female joint at the top of the drill rod column.

[0007] As a further description of the above technical solution:

[0008] A connecting block is fixedly connected to the surface of the second clamp, and a rotating shaft is movably connected to the surface of the connecting block. The surface of the rotating shaft is fixedly connected to the surface of the first clamp.

[0009] By adopting the above technical solution, the rotating shaft enables the second clamp to be movably connected to the first clamp, and the first clamp can rotate around the rotating shaft as the center.

[0010] As a further description of the above technical solution:

[0011] The inner walls of the first clamp and the second clamp are both provided with a first groove. A filter mechanism is installed on the inner wall of the first groove. The filter mechanism includes an upper support tray, which is located inside the first groove. A filter screen body is fixedly connected to the surface of the upper support tray, and filter screen holes are provided on the surface of the filter screen body.

[0012] By adopting the above technical solution, by pinching the protective sleeve fixing seat and the right side valve, the upper support tray fixed on the surface of the filter body is inserted into the first clamp. The inner diameter of the first groove is consistent with the outer diameter of the upper support tray, so that the upper support tray can be easily inserted into the inside of the first clamp. When the first clamp is pulled and rotated, the upper support tray can fall from the inside of the first clamp to the designated position.

[0013] As a further description of the above technical solution:

[0014] The spring rod is located inside the spring body, and the inner wall of the right-side valve is movably connected to the surface of the spring rod.

[0015] By adopting the above technical solution, the right valve moves back and forth on the spring rod, which can push the left valve to move, thereby causing the first clamp to rotate and loosen its fixation on the filter body.

[0016] As a further description of the above technical solution:

[0017] A second fixing block is fixedly connected to the surface of the sheath fixing base. The second fixing block is located to the right of the first fixing block. A sheath tube is fixedly connected to the surface of the second fixing block. The pull rope body is located inside the sheath tube.

[0018] By adopting the above technical solution, the sheath protects and guides the rope body.

[0019] As a further description of the above technical solution:

[0020] A grip is fixedly connected to the lower surface of the support rod, a safety rope fixing roller is installed on the surface of the grip, a pull rope fixing block is fixedly connected to the surface of the support rod, the inner wall of the pull rope fixing block is fixedly connected to the surface of the sheath tube, and the pull rope fixing block is located above the handle fixing ring.

[0021] By adopting the above technical solution, pressing the pull rope handle on the support rod and pulling the pull rope body can drive the right-side valve to move, and the spring rod moves to the left to open the valve.

[0022] By employing the above technical solution, the two-layer bench drill rod filter screen insertion device of this utility model has at least the following beneficial effects:

[0023] 1. Compared with the prior art, this two-layer bench drill pipe filter screen placement device, through the first clamp, pull rope handle, and right-side valve, requires the user to first press the sheath fixing seat and the right-side valve to place the filter screen body into the first clamp, then release the spring body to clamp the filter screen body, lift the handle with both hands, and place the filter screen body into the upper joint of the drill pipe. After confirming that the filter screen body is in the drill pipe joint, press the pull rope handle on the support rod to pull the pull rope body, which will cause the right-side valve to compress the spring body. The spring rod will move to the left to open the valve, release the first clamp, and allow the filter screen body to separate from the first clamp and fall into the upper female joint of the drill pipe column. As can be seen, in use, the derrickman can directly deliver the filter screen to the upper female joint of the drill pipe column via the support rod, without having to stick his body out or stand in a dangerous position, thus reducing the risk of falls and slips. The filter screen is held by the first and second clamps in the fixing mechanism, and the derrickman can directly insert the device into the upper female joint of the drill pipe column. Pressing the pull rope handle will pull the pull rope body, which will drive the right valve to compress the spring body, causing the first clamp to loosen the filter screen, and the filter screen will fall into the upper female joint of the drill pipe column by itself. There is no need for the traveling block to be lowered to the mouse hole, reducing the number of traveling block raising and lowering operations and operation time, avoiding downhole pressure instability caused by excessively long operation procedures, and reducing well control risks during oil and gas formation drilling.

[0024] 2. Compared with the prior art, this two-layer bench drill rod filter screen insertion device, through the filter screen body, upper support tray, and first groove, allows the filter screen body to be clamped onto the first clamp during use. When the filter screen body needs to be clamped onto the first clamp, the protective sleeve fixing seat and the right-side valve are pinched. At this time, the spring body is compressed, clamping the upper support tray fixed to the surface of the filter screen body onto the first clamp. The inner diameter of the first groove is consistent with the outer diameter of the upper support tray, allowing the upper support tray to be easily clamped inside the first clamp. When the first clamp receives tension and rotates, the upper support tray can fall from inside the first clamp to the designated position, making it more convenient to clamp the filter screen body and improving work efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a two-layer bench drill rod filter screen insertion device proposed in this utility model;

[0026] Figure 2 This utility model proposes a device for placing a filter screen into a two-layer bench drill rod. Figure 2 Enlarged view of the structure at point A;

[0027] Figure 3 This is a cross-sectional view of a two-layer bench drill rod filter screen insertion device proposed in this utility model;

[0028] Figure 4 This utility model proposes a device for placing a filter screen into a two-layer bench drill rod. Figure 3 Enlarged view of the structure at point B.

[0029] Legend:

[0030] 1. Support mechanism; 101. Support rod; 102. Handle; 103. Connecting seat; 2. Fixing mechanism; 201. Clamp fixing seat; 202. First clamp; 203. Second clamp; 204. First groove; 205. Connecting block; 206. Rotating shaft; 3. Filtering mechanism; 301. Filter screen body; 302. Upper support tray; 303. Filter screen hole; 4. Elastic mechanism; 401. Left valve; 402. Right valve; 403. Spring rod; 404. Spring body; 405. Sheath fixing seat; 5. Tensioning mechanism; 501. First fixing block; 502. Second fixing block; 503. Pull rope body; 504. Sheath tube; 6. Control component; 601. Pull rope fixing block; 602. Handle fixing ring; 603. Rotating rod; 604. Pull rope handle; 605. Safety rope fixing roller. Detailed Implementation

[0031] Reference Figure 1-4 This utility model provides a two-layer bench drill rod filter screen insertion device, comprising a support mechanism 1, which includes a support rod 101. A connecting seat 103 is fixedly connected to the upper surface of the support rod 101. A fixing mechanism 2 is installed on the surface of the connecting seat 103. The fixing mechanism 2 includes a clamp fixing seat 201. A second clamp 203 is fixedly connected to the surface of the clamp fixing seat 201. An elastic mechanism 4 is installed on the surface of the second clamp 203. The elastic mechanism 4 includes a protective sleeve fixing seat 405. The surface of the protective sleeve fixing seat 405 is fixedly connected to the surface of the clamp fixing seat 201. A spring rod 403 is sleeved on the surface of the protective sleeve fixing seat 405. A spring body 404 is fixedly connected to the surface of the protective sleeve fixing seat 405. The end of the spring body 404 is fixedly connected to... A right-side valve 402 is connected to a left-side valve 401, which is fixedly connected to the surface of a spring rod 403. A first clamp 202 is fixedly connected to the surface of the left-side valve 401. A tensioning mechanism 5 is installed on the surface of the right-side valve 402. The tensioning mechanism 5 includes a first fixing block 501, whose surface is fixedly connected to the surface of the right-side valve 402. A pull rope body 503 is fixedly connected to the surface of the first fixing block 501. A control component 6 is installed on the surface of a support rod 101. The control component 6 includes a handle fixing ring 602, whose inner wall is fixedly connected to the surface of the support rod 101. A rotating rod 603 is movably connected to the surface of the handle fixing ring 602, and a pull rope handle 604 is fixedly connected to the surface of the rotating rod 603.

[0032] A connecting block 205 is fixedly connected to the surface of the second clamp 203. A rotating shaft 206 is movably connected to the surface of the connecting block 205. A first clamp 202 is fixedly connected to the surface of the rotating shaft 206. Both the first clamp 202 and the second clamp 203 have a first groove 204 on their inner walls. A filter mechanism 3 is installed on the inner wall of the first groove 204. The filter mechanism 3 includes an upper support tray 302 located inside the first groove 204. A filter screen body 301 is fixedly connected to the surface of the upper support tray 302. Filter screen holes 303 are formed on the surface of the filter screen body 301. A spring rod 403 is located inside the spring body 404. A right-side valve 40... The inner wall of 2 is movably connected to the surface of the spring rod 403. The surface of the sheath fixing seat 405 is fixedly connected to the second fixing block 502, which is located to the right of the first fixing block 501. The surface of the second fixing block 502 is fixedly connected to the sheath tube 504. The pull rope body 503 is located inside the sheath tube 504. The lower surface of the support rod 101 is fixedly connected to the grip rod 102. The surface of the grip rod 102 is equipped with a safety rope fixing roller 605. The surface of the support rod 101 is fixedly connected to the pull rope fixing block 601. The inner wall of the pull rope fixing block 601 is fixedly connected to the surface of the sheath tube 504. The pull rope fixing block 601 is located above the handle fixing ring 602.

[0033] Working principle: First, press the sheath fixing seat 405 and the right valve 402 by hand, put the filter body 301 into the first clamp 202, release the spring body 404 to clamp the filter body 301, lift the handle 102 with both hands, put the filter body 301 into the upper joint of the drill pipe, after confirming that the filter body 301 is in the drill pipe joint, press the pull rope handle 604 on the support rod 101, pull the pull rope body 503, drive the right valve 402 to compress the spring body 404, the spring rod 403 moves to the left to open the valve, release the first clamp 202, so that the filter body 301 separates from the first clamp 202 and falls into the upper female joint of the drill pipe column. When the filter body 301 needs to be clamped onto the first clamp 202, pinch the protective sleeve fixing seat 405 and the right side valve 402. At this time, the spring body 404 is in a compressed state, which clamps the upper support tray 302 fixed on the surface of the filter body 301 into the first clamp 202. The inner diameter of the first groove 204 is consistent with the outer diameter of the upper support tray 302, so that the upper support tray 302 can be easily clamped inside the first clamp 202. When the first clamp 202 is pulled and rotated, the upper support tray 302 can fall from the inside of the first clamp 202 to the designated position, which can more conveniently clamp the filter body 301 and improve work efficiency.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for inserting a filter screen into a two-layer bench drill rod, comprising a support mechanism (1), characterized in that: The support mechanism (1) includes a support rod (101), a connecting seat (103) is fixedly connected to the upper surface of the support rod (101), a fixing mechanism (2) is installed on the surface of the connecting seat (103), the fixing mechanism (2) includes a clamp fixing seat (201), a second clamp (203) is fixedly connected to the surface of the clamp fixing seat (201), an elastic mechanism (4) is installed on the surface of the second clamp (203), the elastic mechanism (4) includes a sheath fixing seat (405), the surface of the sheath fixing seat (405) is fixedly connected to the surface of the clamp fixing seat (201), a spring rod (403) is sleeved on the surface of the sheath fixing seat (405), a spring body (404) is fixedly connected to the surface of the sheath fixing seat (405), a right-side valve (402) is fixedly connected to the end of the spring body (404), and the spring rod... The surface of (403) is fixedly connected to a left valve (401), the surface of the left valve (401) is fixedly connected to a first clamp (202), the surface of the right valve (402) is installed with a tensioning mechanism (5), the tensioning mechanism (5) includes a first fixing block (501), the surface of the first fixing block (501) is fixedly connected to the surface of the right valve (402), the surface of the first fixing block (501) is fixedly connected to a pull rope body (503), the surface of the support rod (101) is installed with a control component (6), the control component (6) includes a handle fixing ring (602), the inner wall of the handle fixing ring (602) is fixedly connected to the surface of the support rod (101), the surface of the handle fixing ring (602) is movably connected to a rotating rod (603), the surface of the rotating rod (603) is fixedly connected to a pull rope handle (604).

2. The device for inserting a filter screen into a two-layer bench drill rod according to claim 1, characterized in that: The surface of the second clamp (203) is fixedly connected to a connecting block (205), and the surface of the connecting block (205) is movably connected to a rotating shaft (206). The surface of the rotating shaft (206) is fixedly connected to the surface of the first clamp (202).

3. The device for inserting a filter screen into a two-layer bench drill rod according to claim 2, characterized in that: The inner walls of the first clamp (202) and the second clamp (203) are provided with a first groove (204). A filter mechanism (3) is installed on the inner wall of the first groove (204). The filter mechanism (3) includes an upper support tray (302). The upper support tray (302) is located inside the first groove (204). A filter screen body (301) is fixedly connected to the surface of the upper support tray (302). A filter screen hole (303) is provided on the surface of the filter screen body (301).

4. The device for placing a filter screen on a two-layer bench drill rod according to claim 1, characterized in that: The spring rod (403) is located inside the spring body (404), and the inner wall of the right-side valve (402) is movably connected to the surface of the spring rod (403).

5. The device for placing a filter screen on a two-layer bench drill rod according to claim 1, characterized in that: The surface of the sheath fixing base (405) is fixedly connected to a second fixing block (502), the second fixing block (502) is located to the right of the first fixing block (501), the surface of the second fixing block (502) is fixedly connected to a sheath tube (504), and the pull rope body (503) is located inside the sheath tube (504).

6. The device for placing a filter screen on a two-layer bench drill rod according to claim 1, characterized in that: A grip (102) is fixedly connected to the lower surface of the support rod (101). A safety rope fixing roller (605) is installed on the surface of the grip (102). A pull rope fixing block (601) is fixedly connected to the surface of the support rod (101). The inner wall of the pull rope fixing block (601) is fixedly connected to the surface of the sheath tube (504). The pull rope fixing block (601) is located above the handle fixing ring (602).