Pipe for drill rod for oil development

Abstract

The utility model relates to the technical field of oil development, in particular to a pipe for a drill rod for oil development, which comprises a drill handle, a drill rod main body is arranged at one end of the drill handle, a connecting component for mounting the drill rod main body is connected to one side, close to the drill rod main body, of the drill handle, and the connecting component comprises a connecting seat fixedly connected with the outer wall of the drill handle. A limiting seat is fixedly connected to the side, away from the drill handle, of the connecting seat, positioning assemblies for positioning the drill rod body are symmetrically arranged on the two sides of the interior of the limiting seat, and arc-shaped limiting blocks are symmetrically connected to the upper side and the lower side of the end, close to the drill handle, of the drill rod body. Positioning holes are formed in the surfaces of the two sides of the end, close to the arc-shaped limiting blocks, of the drill rod body, external threads are arranged on the sides, away from the drill handle, of the two arc-shaped limiting blocks, a motor is connected to the side, away from the connecting assembly, of the drill handle, and a controller is connected to the outer wall of the drill handle; and the stability of connection between the drill rod main body and the drill handle is improved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum development technology, specifically to a drill pipe for petroleum development. Background Technology

[0002] Petroleum resources are a non-renewable resource. With the increasing efforts to improve efficiency and control the potential of oil extraction, oilfield drilling and workover operations are gradually extending to deeper and more complex geological conditions, resulting in more and more deviated wells, horizontal wells, and intervention wells. With the increase in drilling in deviated wells, horizontal wells, and complex geological environments, the bottom drill string assembly requires a large number of heavy drill pipes to meet the needs of drilling production. Oil drill pipes are an indispensable and important tool in oil drilling operations. Existing drill pipes are usually installed by threads. Since drill pipes drill oil by rotation, the threaded connection is easily worn during long-term use, leading to loosening of the drill pipe and affecting the stability and safety of drilling operations. Utility Model Content

[0003] The purpose of this utility model is to provide a drill pipe for oil development to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A drill pipe for oil development includes a drill shank, with a drill pipe body at one end of the drill shank. A connecting assembly for mounting the drill pipe body is connected to the side of the drill shank near the drill pipe body. The connecting assembly includes a connecting seat fixedly connected to the outer wall of the drill shank. A limiting seat is fixedly connected to the side of the connecting seat away from the drill shank. Positioning components for positioning the drill pipe body are symmetrically arranged on both sides inside the limiting seat. Arc-shaped limiting blocks are symmetrically connected to the upper and lower sides of the drill pipe body near the drill shank end. Positioning holes are formed on both sides of the drill pipe body near the arc-shaped limiting blocks.

[0006] As a preferred embodiment of this utility model, both of the arc-shaped limiting blocks are provided with external threads on the side away from the drill shank, the side of the drill shank away from the connecting assembly is connected to a motor, and the outer wall of the drill shank is connected to a controller.

[0007] As a preferred embodiment of this utility model, the inner wall of the connecting seat has an internal thread groove, which is adapted to the external thread of the outer wall of the arc-shaped limiting block. The drill rod body is threadedly connected to the connecting seat through the external thread and the internal thread groove.

[0008] As a preferred embodiment of this utility model, the upper and lower inner walls of the limiting seat are symmetrically provided with arc-shaped limiting grooves, the two arc-shaped limiting grooves are respectively adapted to two arc-shaped limiting blocks, and the two arc-shaped limiting blocks respectively extend through the two arc-shaped limiting grooves into the interior of the connecting seat.

[0009] As a preferred embodiment of this utility model, the positioning component includes an inner groove formed inside the limiting seat, a lead screw passing through the side of the inner groove away from the connecting seat, a knob fixedly connected to one end of the lead screw extending to the outer wall of the inner groove, and a threaded sleeve threadedly connected to the outer wall of the lead screw.

[0010] As a preferred embodiment of this utility model, the end of the threaded sleeve away from the lead screw is inclined, an extension slide rod is fixedly connected to one side of the outer wall of the threaded sleeve, a sliding groove is opened on one side of the inner wall of the inner groove, the end of the extension slide rod away from the threaded sleeve extends into the interior of the sliding groove and is slidably connected to the inner wall of the sliding groove, and a positioning rod is provided on the side of the inner groove away from the lead screw.

[0011] As a preferred embodiment of this utility model, one end of the positioning rod is also inclined, and the inclined end of the positioning rod is slidably connected to the end of the threaded sleeve away from the lead screw. A moving block is fixedly connected to the middle of one side of the positioning rod, and a guide rod passes through the interior of the moving block. The two ends of the guide rod are fixedly connected to the inner walls of the two sides of the inner groove, respectively. A return spring is sleeved on the outer wall of the guide rod. The end of the positioning rod away from the threaded sleeve extends to the outside of the inner groove and is engaged with the positioning hole. The two sets of positioning components are symmetrically arranged.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the arc-shaped limiting block extends through the arc-shaped limiting groove to the inside of the connecting seat. The external thread and internal thread groove are used to connect with the arc-shaped limiting groove. When the arc-shaped limiting block rotates to a position perpendicular to the arc-shaped limiting groove, the arc-shaped limiting block is restricted by the arc-shaped limiting groove, thereby achieving a stable connection between the drill rod body and the drill shank.

[0014] 2. In this utility model, the positioning rods on both sides are engaged inside the positioning holes, which can prevent the drill rod body from loosening due to wear of the external thread and internal thread groove, and further improve the stability of the connection between the drill rod body and the drill shank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the drill pipe body and the connecting assembly of this utility model;

[0017] Figure 3 This is a top view cross-sectional structural diagram of the positioning component of this utility model;

[0018] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1. Drill shank; 2. Controller; 3. Motor; 4. Connecting assembly; 5. Drill rod body; 6. Positioning assembly; 7. Arc-shaped limit block; 8. Positioning hole; 9. External thread; 401. Connecting seat; 402. Limiting seat; 403. Internal thread groove; 404. Arc-shaped limit groove; 601. Inner groove; 602. Lead screw; 603. Knob; 604. Threaded sleeve; 605. Extension slide rod; 606. Slide groove; 607. Positioning rod; 608. Guide rod; 609. Moving block; 610. Return spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0023] A drill pipe for oil development includes a drill shank 1. A drill pipe body 5 is provided at one end of the drill shank 1. A connecting assembly 4 for installing the drill pipe body 5 is connected to the side of the drill shank 1 near the drill pipe body 5. The connecting assembly 4 includes a connecting seat 401 fixedly connected to the outer wall of the drill shank 1. A limiting seat 402 is fixedly connected to the side of the connecting seat 401 away from the drill shank 1. Positioning components 6 for positioning the drill pipe body 5 are symmetrically arranged on both sides inside the limiting seat 402. Arc-shaped limiting blocks 7 are symmetrically connected to the upper and lower sides of the drill pipe body 5 near the end of the drill shank 1. Positioning holes 8 are opened on both sides of the surface of the drill pipe body 5 near the end of the arc-shaped limiting blocks 7.

[0024] Both arc-shaped limiting blocks 7 have external threads 9 on the side away from the drill shank 1. A motor 3 is connected to the side of the drill shank 1 away from the connecting assembly 4. A controller 2 is connected to the outer wall of the drill shank 1. An internal thread groove 403 is formed on the inner wall of the connecting seat 401, and the internal thread groove 403 is adapted to the external thread 9 on the outer wall of the arc-shaped limiting block 7. The drill rod body 5 is threadedly connected to the connecting seat 401 through the external thread 9 and the internal thread groove 403. Arc-shaped limiting grooves 404 are symmetrically formed on the upper and lower inner walls of the limiting seat 402. The arc-shaped limiting grooves 404 are respectively adapted to two arc-shaped limiting blocks 7. The two arc-shaped limiting blocks 7 extend through the two arc-shaped limiting grooves 404 into the interior of the connecting seat 401. The positioning component 6 includes an inner groove 601 formed inside the limiting seat 402. A lead screw 602 passes through the side of the inner groove 601 away from the connecting seat 401. A knob 603 is fixedly connected to one end of the lead screw 602 extending to the outer wall of the inner groove 601. A threaded sleeve 604 is threadedly connected to the outer wall of the lead screw 602. The end away from the lead screw 602 is inclined. An extension slide rod 605 is fixedly connected to the outer wall of one side of the threaded sleeve 604. A groove 606 is formed on the inner wall of one side of the inner groove 601. The end of the extension slide rod 605 away from the threaded sleeve 604 extends into the interior of the groove 606 and is slidably connected to the inner wall of the groove 606. A positioning rod 607 is provided inside the inner groove 601 on the side away from the lead screw 602. One end of the positioning rod 607 is also inclined. The inclined end of the positioning rod 607 is connected to the threaded sleeve 604. The end of the sleeve 604 away from the lead screw 602 is slidably connected. A moving block 609 is fixedly connected to the middle of one side of the positioning rod 607. A guide rod 608 passes through the inside of the moving block 609. The two ends of the guide rod 608 are fixedly connected to the inner walls of the inner groove 601 on both sides respectively. A return spring 610 is sleeved on the outer wall of the guide rod 608. The end of the positioning rod 607 away from the threaded sleeve 604 extends to the outside of the inner groove 601 and is engaged with the positioning hole 8. The two sets of positioning components 6 are symmetrically arranged.

[0025] The working process of this utility model is as follows: During use, the arc-shaped limiting blocks 7 on both sides of the drill rod body 5 are inserted into the inner side of the arc-shaped limiting groove 404. The drill rod body 5 is then moved further into the connecting seat 401. The external thread 9 and the internal thread groove 403 are used to thread the drill rod body 5 to the connecting seat 401. The arc-shaped limiting blocks 7 are rotated to a position perpendicular to the arc-shaped limiting groove 404, further limiting the arc-shaped limiting blocks 7 and improving the stability of the connection. Subsequently, the screw 602 is rotated using the knob 603, and the threaded sleeve 604 moves towards the positioning rod 607. When the positioning rod 607 is pushed and engaged inside the positioning hole 8, a stable connection between the drill rod body 5 and the drill shank 1 is achieved. When disassembly is required, simply rotate the knob 603 in the opposite direction to move the threaded sleeve 604 away from the positioning rod 607. The positioning rod 607 is reset under the action of the return spring 610 and disengages from the positioning hole 8. At this time, the drill rod body 5 can be easily unscrewed from the connecting seat 401 to complete the disassembly process. This not only simplifies the installation and disassembly steps of the drill rod body 5, but also greatly improves the stability and reliability of the connection between the drill rod and the drill shank.

[0026] The motor 3 and controller 2 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the motor 3 and controller 2 will not be described in detail here.

[0027] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0028] 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 drill pipe for oil development, comprising a drill shank (1), characterized in that: One end of the drill shank (1) is provided with a drill rod body (5). A connecting component (4) for installing the drill rod body (5) is connected to the side of the drill shank (1) near the drill rod body (5). The connecting component (4) includes a connecting seat (401) fixedly connected to the outer wall of the drill shank (1). A limiting seat (402) is fixedly connected to the side of the connecting seat (401) away from the drill shank (1). A positioning component (6) for positioning the drill rod body (5) is symmetrically arranged on both sides inside the limiting seat (402). Arc-shaped limiting blocks (7) are symmetrically connected to the upper and lower sides of the drill rod body (5) near the end of the drill shank (1). Positioning holes (8) are opened on both sides of the drill rod body (5) near the end of the arc-shaped limiting block (7).

2. The drill pipe for oil development according to claim 1, characterized in that: Both of the arc-shaped limiting blocks (7) are provided with external threads (9) on the side away from the drill shank (1). The drill shank (1) is connected to a motor (3) on the side away from the connecting assembly (4). The outer wall of the drill shank (1) is connected to a controller (2).

3. The drill pipe for oil development according to claim 1, characterized in that: The inner wall of the connecting seat (401) has an internal thread groove (403), which is adapted to the external thread (9) on the outer wall of the arc-shaped limiting block (7). The drill rod body (5) is threadedly connected to the connecting seat (401) through the external thread (9) and the internal thread groove (403).

4. The drill pipe for oil development according to claim 1, characterized in that: The upper and lower inner walls of the limiting seat (402) are symmetrically provided with arc-shaped limiting grooves (404). The two arc-shaped limiting grooves (404) are respectively adapted to the two arc-shaped limiting blocks (7). The two arc-shaped limiting blocks (7) extend through the two arc-shaped limiting grooves (404) to the interior of the connecting seat (401).

5. The drill pipe for oil development according to claim 1, characterized in that: The positioning component (6) includes an inner groove (601) formed inside the limiting seat (402), a lead screw (602) passing through the side of the inner groove (601) away from the connecting seat (401), a knob (603) being fixedly connected to one end of the lead screw (602) extending to the outer wall of the inner groove (601), and a threaded sleeve (604) being threadedly connected to the outer wall of the lead screw (602).

6. The drill pipe for oil development according to claim 5, characterized in that: The threaded sleeve (604) is inclined at one end away from the lead screw (602). An extension slide rod (605) is fixedly connected to one outer wall of the threaded sleeve (604). A groove (606) is provided on one inner wall of the inner groove (601). The end of the extension slide rod (605) away from the threaded sleeve (604) extends into the interior of the groove (606) and is slidably connected to the inner wall of the groove (606). A positioning rod (607) is provided on the side of the inner groove (601) away from the lead screw (602).

7. A drill pipe for oil development according to claim 6, characterized in that: One end of the positioning rod (607) is also inclined. The inclined end of the positioning rod (607) is slidably connected to the end of the threaded sleeve (604) away from the lead screw (602). A moving block (609) is fixedly connected to the middle of one side of the positioning rod (607). A guide rod (608) runs through the inside of the moving block (609). The two ends of the guide rod (608) are fixedly connected to the inner walls of the inner groove (601) on both sides respectively. A return spring (610) is sleeved on the outer wall of the guide rod (608). The end of the positioning rod (607) away from the threaded sleeve (604) extends to the outside of the inner groove (601) and is engaged with the positioning hole (8). The two sets of positioning components (6) are symmetrically arranged.

Images