Salvage female tap with peeping function while drilling

Abstract

The utility model discloses a fishing female tap with a peeping function while drilling, which comprises a drill rod body, an internal thread groove is arranged at the bottom of the drill rod body, and an external thread groove is arranged at the top of the drill rod body; the female tap body is arranged at the top of the drill rod body in a threaded and sleeving manner; the peeping device is installed in the drill rod body, and the peeping device is used for achieving the function of fishing while peeping in the horizontal drilling drill falling operation. By means of the arrangement mode that the female tap body is matched with the peeping device, the peeping device is installed in the drill rod body, the peeping function is achieved while drilling, when the female tap body is connected with a falling drill tool, observation can be achieved while fishing is conducted, and the fishing efficiency and the success rate are improved; the ground console displays pictures shot by the anti-explosion camera assembly in real time, adjustment can be carried out according to actual conditions, and safety is improved; and the explosion-proof camera assembly supports a video recording function, so that subsequent analysis and salvage flow optimization are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling tools, and in particular to a retrieval mother cone with a drilling inspection function. Background Technology

[0002] In oil and gas exploration and underground engineering, horizontal drilling operations often result in drill string breakage due to complex geological conditions and high construction difficulty. Drill string breakage is a common drilling accident encountered during directional drilling in coal mines. Some cases are relatively simple and easy to handle, often resulting in a successful operation on the first attempt. However, most drill string breakage accidents are accompanied by stuck drill bit accidents, which, if not handled properly, can lead to further accidents.

[0003] For male cone drills that are unsuitable for retrieving conventional through-cable drill rods, non-magnetic drill rods, and probe outer tubes, female cone drills can be used. The retrieval principle is to use the high-strength conical thread in the through hole of the female cone to create a connection on the top of the fallen drill bit that is trapped by it, connecting the fallen drill bit to the female cone and transmitting tension, pressure, and torque. Then, the accidental drill bit can be retrieved by lifting the drill or by reverse-clamping.

[0004] Traditional retrieval tools (such as ordinary borehole cones) lack real-time monitoring capabilities, making it impossible to intuitively understand the location and status of the drill string during retrieval. This results in low retrieval efficiency, low success rates, and may even lead to secondary accidents. Currently, most borehole cones on the market do not have viewing capabilities, forcing operators to rely primarily on experience-based judgment, which makes precise positioning and efficient retrieval difficult. Therefore, there is an urgent need for a retrieval tool that can observe the interior of the borehole in real time to improve the safety and efficiency of retrieval operations. Utility Model Content

[0005] The purpose of this invention is to provide a retrieval mother cone with a drilling inspection function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a retrieval mother cone with a drilling inspection function, comprising:

[0007] The drill rod body has an internal threaded groove at its bottom and an external threaded groove at its top.

[0008] The female cone body is threadedly sleeved on the top of the drill rod body;

[0009] A viewing device is installed inside the drill rod body and is used to perform simultaneous retrieval and viewing during horizontal drilling operations where the drill bit has fallen out.

[0010] Preferably, the viewing device includes:

[0011] An explosion-proof camera assembly, wherein the explosion-proof camera assembly has an internal LED light;

[0012] The first waterproof aviation connector is installed at the bottom of the explosion-proof camera assembly;

[0013] The first fixing tube, one end of which is connected to the first waterproof aviation connector;

[0014] The second waterproof aircraft connector is connected to the other end of the first fixed tube;

[0015] A signal transponder, which is connected to a second waterproof aviation connector;

[0016] The second fixed tube, one end of which is connected to the signal transducer;

[0017] A connecting mechanism is connected to the other end of the second fixed tube.

[0018] Preferably, the explosion-proof camera assembly, the first waterproof aviation connector, the second waterproof aviation connector, the signal transceiver, and the connecting mechanism are electrically connected via an electrical transmission line, and the first and second fixing tubes are used to protect the electrical transmission line.

[0019] Preferably, the explosion-proof camera assembly is externally fitted with a mounting mechanism, which is installed on the top of the inner side of the drill rod body and is used for positioning and supporting the explosion-proof camera assembly.

[0020] Preferably, the mounting mechanism includes:

[0021] The supporting semi-rings are symmetrically arranged on the outside of the explosion-proof camera assembly, and the two supporting semi-rings form a ring structure.

[0022] A connecting ring, which is an incomplete circular ring, is connected to the top and bottom of the supporting semi-ring, and the connecting rings are arranged in an alternating manner.

[0023] Preferably, the outer side of the supporting semi-ring has multiple grooves.

[0024] Preferably, the connecting mechanism includes:

[0025] A plastic male connector, which is connected to the end of the second fixing tube;

[0026] A water-passing ring, wherein the water-passing ring is sleeved on the outside of the water-passing ring.

[0027] The technical effects and advantages of this utility model are as follows:

[0028] This invention utilizes a combination of a mother cone body and a viewing device. By installing the viewing device inside the drill pipe, it provides a viewing function while drilling. When the mother cone body is connected to the dropped drill bit, it enables simultaneous retrieval and observation, improving retrieval efficiency and success rate. The ground control console displays the images captured by the explosion-proof camera assembly in real time, allowing operators to make adjustments based on actual conditions and enhancing safety. Furthermore, the explosion-proof camera assembly supports video recording, facilitating subsequent analysis and optimization of the retrieval process. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the exploded structure of the drill rod body and the mother cone body of this utility model.

[0031] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0032] Figure 4 This is a three-dimensional structural diagram of the viewing device of this utility model.

[0033] Figure 5 This is a schematic diagram of the installation mechanism of this utility model.

[0034] Figure 6 This is a schematic diagram of the connection mechanism of this utility model.

[0035] In the diagram: 1. Drill rod body; 2. Female cone body; 3. Viewing device; 31. Explosion-proof camera assembly; 32. First waterproof aviation connector; 33. First fixing pipe; 34. Second waterproof aviation connector; 35. Signal transceiver; 36. Second fixing pipe; 37. Connecting mechanism; 371. Plastic male connector; 372. Water ring; 38. Installation mechanism; 381. Support half ring; 382. Connecting ring. Detailed Implementation

[0036] 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.

[0037] This utility model provides, for example Figure 1-6The illustrated fishing mother cone with a drilling observation function includes: a drill pipe body 1, with an internal threaded groove at the bottom and an external threaded groove at the top; a mother cone body 2, threadedly fitted onto the top of the drill pipe body 1, providing the main support and transmission components during drilling operations. This ensures the stability and controllability of the drill string inside the borehole, providing fundamental support for subsequent fishing operations. The mother cone body 2, as the main fishing device, is used to grab and pull up the drill string that has fallen into the borehole. The mother cone body 2 is made of high-strength alloy material, possessing excellent wear resistance and impact resistance, adapting to complex drilling environments, and improving the fishing success rate; and a viewing device 3, installed inside the drill pipe body 1. The viewing device 3 enables simultaneous fishing and observation during horizontal borehole drops, transmitting clear images of the borehole interior in real time during the fishing process, helping operators accurately locate and adjust fishing actions, significantly improving fishing efficiency and safety.

[0038] The viewing device 3 includes: an explosion-proof camera assembly 31, which has an internal LED light. The explosion-proof camera assembly 31 features a pressure-resistant and waterproof design, suitable for operations under high pressure and complex geological conditions. The LED light on the explosion-proof camera assembly 31 provides illumination during salvage operations, resulting in clearer images. This explosion-proof camera assembly 31 is responsible for capturing and transmitting images of the borehole interior. It has an explosion-proof design and is adaptable to high-pressure and high-temperature environments, ensuring safe use in complex and hazardous environments and maintaining good image quality, providing reliable visual information. A first waterproof aviation connector 32 is installed at the bottom of the explosion-proof camera assembly 31. This first waterproof aviation connector 32 is used to connect the explosion-proof camera assembly 31 to the signal transmission line, ensuring the stability and reliability of signal transmission, and also has a waterproof function. To prevent moisture and contaminants from entering the connection point, ensuring normal operation of the equipment in humid environments and extending its service life; a first fixing pipe 33, one end of which is connected to a first waterproof aerial connector 32, is used to fix and support the viewing device 3, ensuring its stability during operation. This improves the structural strength of the equipment and ensures accurate positioning of the explosion-proof camera assembly 31 during operation; a second waterproof aerial connector 34, connected to the other end of the first fixing pipe 33, provides an alternative connection method, similar to the first waterproof aerial connector 32, ensuring reliable signal transmission. Further enhancing the waterproof performance of the equipment ensures normal operation under high pressure and complex environments; a signal transducer 35, connected to the second waterproof aviation connector 34, is used to switch signal types for broader compatibility and increased flexibility; a second fixing tube 36, one end of which is connected to the signal transducer 35, similar to the first fixing tube 33, provides additional fixing support to ensure the stability and accuracy of the viewing device 3. Enhancing the overall structural stability ensures reliability during drilling operations; a connecting mechanism 37 is connected to the other end of the second fixing tube 36. The explosion-proof camera assembly 31, the first waterproof aviation connector 32, the second waterproof aviation connector 34, the signal transducer 35, and the connecting mechanism 37 are electrically connected via electrical transmission lines, and the first fixing tube 33 and the second fixing tube 36 protect the electrical transmission lines. An installation mechanism 38 is provided on the outside of the explosion-proof camera assembly 31. The installation mechanism 38 is installed on the top of the inner side of the drill rod body 1 and is used to position and support the explosion-proof camera assembly 31.

[0039] The installation mechanism 38 includes: a supporting semi-ring 381, which is symmetrically arranged on the outside of the explosion-proof camera assembly 31, and the two supporting semi-rings 381 form a ring structure; and a connecting ring 382, ​​which is an incomplete ring and connects the top and bottom of the supporting semi-rings 381, with the connecting rings 382 arranged in an alternating manner. Multiple grooves are provided on the outer side of the supporting semi-rings 381 to facilitate water flow, and the connecting rings 382 provide support for the explosion-proof camera assembly 31, making the position of the explosion-proof camera assembly 31 more stable inside the drill rod body 1. This improves the stability and durability of the equipment. Because the two connecting rings 382 face opposite directions, their alternating arrangement makes the splicing of the two supporting semi-rings 381 more stable.

[0040] The connecting mechanism 37 includes: a plastic male connector 371, which is connected to the end of the second fixed pipe 36; and a water-passing ring 372, which is sleeved on the outside of the water-passing ring 372. The plastic male connector 371, as part of the connector, provides a convenient plug-and-play design, simplifying the assembly and disassembly process of the equipment. This improves the ease of operation of the equipment, reduces the time spent on maintenance and component replacement, and ensures unobstructed water flow during the salvage process, preventing blockages and ensuring a clear field of vision. This improves operational efficiency, ensures that the explosion-proof camera assembly 31 can capture images in clear water flow, and enhances the safety of the salvage operation.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 retrieval cone with a drilling inspection function, characterized in that, include: The drill rod body (1) has an internal thread groove at the bottom and an external thread groove at the top. The female cone body (2) is threaded onto the top of the drill rod body (1); A viewing device (3) is installed inside the drill rod body (1). The viewing device (3) is used to perform simultaneous retrieval and viewing during horizontal drilling operations. The viewing device (3) includes: An explosion-proof camera assembly (31) has an internal LED light; The first waterproof aviation connector (32) is installed at the bottom of the explosion-proof camera assembly (31); The first fixing tube (33) is connected at one end to the first waterproof aviation connector (32); The second waterproof aircraft connector (34) is connected to the other end of the first fixed tube (33); Signal transponder (35), which is connected to a second waterproof aviation connector (34); The second fixed tube (36) is connected at one end to the signal transducer (35); A connecting mechanism (37) is connected to the other end of the second fixed tube (36).

2. The retrieval cone with drilling inspection function according to claim 1, characterized in that, The explosion-proof camera assembly (31), the first waterproof aviation connector (32), the second waterproof aviation connector (34), the signal transceiver (35), and the connection mechanism (37) are electrically connected by an electrical transmission line, and the first fixing tube (33) and the second fixing tube (36) are used to protect the electrical transmission line.

3. The retrieval cone with drilling inspection function according to claim 1, characterized in that, The explosion-proof camera assembly (31) is fitted with an installation mechanism (38), which is installed on the top of the inner side of the drill rod body (1) and is used to position and support the explosion-proof camera assembly (31).

4. A retrieval cone with a drilling inspection function according to claim 3, characterized in that, The installation mechanism (38) includes: Supporting semi-rings (381) are symmetrically arranged on the outside of the explosion-proof camera assembly (31), and the two supporting semi-rings (381) form a ring structure; A connecting ring (382) is an incomplete circular ring. The connecting ring (382) is connected to the top and bottom of the supporting half-ring (381). The connecting rings (382) are arranged in an alternating manner.

5. A retrieval cone with a drilling inspection function according to claim 4, characterized in that, The outer side of the supporting semi-ring (381) has multiple grooves.

6. A retrieval cone with a sighting function while drilling, as described in claim 1, is characterized in that, The connecting mechanism (37) includes: A plastic male connector (371) is connected to the end of the second fixing tube (36); Water circulation ring (372), the water circulation ring (372) is sleeved on the outside of the water circulation ring (372).

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