Cable-passing type large-drift-diameter grooving directional drill rod

Abstract

The utility model belongs to the field of well drilling application equipment, and particularly relates to a through cable type large-drift-diameter grooving directional drill rod. Comprising a drill rod body and a connecting pipe arranged in the drill rod body in a sleeved mode, the connecting pipe comprises a pipe body and connecting columns arranged on the outer wall of the pipe body, the connecting columns are arranged in a cuboid shape, the connecting columns are evenly distributed on the outer wall of the pipe body, inserting holes are formed in the connecting columns, and the inserting holes are communicated with the pipe body. According to the utility model, the structure of the connecting pipe is improved, the connecting column on the side wall of the connecting pipe is utilized to realize the connection with the drill rod body, and the gap connection between the pipe body and the drill rod body is utilized to realize the detachable fixed connection between the connecting pipe and the drill rod body, so that the purpose of conveniently maintaining a cable is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of drilling application equipment, in particular to a cable-type large-diameter grooved directional drill rod. Background Art

[0002] Drill pipe is a crucial component of drilling equipment. The measurement-while-drilling (MWD) system (MWD) is essential for continuously monitoring the borehole trajectory and ensuring timely correction. The drill pipe body must be compatible with both directional drilling techniques using a bottomhole drill assembly and a bottomhole motor. Signal transmission methods for MWD systems include wired (cable) and wireless. The advantage of the wired (cable) method is that it can directly power bottomhole sensors, enabling two-way communication between bottomhole and orifice equipment, with excellent real-time performance and high data transmission rates.

[0003] At present, there are two ways to set up the cable in the drill pipe. One is to set fixings at both ends of the cable and use the fixings to fix the cable in the drill pipe. The other is to add an inner tube to fix the cable. The inner tube and the drill pipe are fixed by interference fit. This fixing method is more stable than fixing at both ends. However, once the cable fails, it cannot be replaced and the entire drill pipe needs to be replaced, which increases the cost of use. Utility Model Content

[0004] The utility model aims at solving the technical problems existing in the existing cable-type drill rod and proposes a cable-type large-diameter grooved directional drill rod which has reasonable design, simple structure, convenient processing and convenient maintenance.

[0005] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: the present invention provides a cable-type large-diameter grooved directional drill pipe, comprising a drill pipe body and a connecting pipe sleeved within the drill pipe body, the connecting pipe comprising a pipe body and connecting posts arranged on the outer wall of the pipe body, the connecting posts being arranged in a rectangular parallelepiped shape and evenly distributed on the outer wall of the pipe body, the connecting posts being provided with insertion holes, the insertion holes being arranged along the long side direction of the connecting posts and penetrating the connecting posts, the insertion holes being arranged in a convex shape in cross section, the insertion holes being provided on both sides of the insertion holes, the connection holes being provided near the bottom of the insertion holes, the end of the connecting post away from the pipe body being divided into two lobes by the action of the insertion holes and the connection holes, the insertion posts being provided in the insertion holes, the insertion posts being provided in the insertion holes, the insertion posts being arranged in a rectangular cross section, the end of the connecting post away from the pipe body being arranged to both sides by the action of the insertion posts, the inner wall of the drill pipe body being provided with slots matching the insertion posts, the slots being arranged in a trapezoidal cross section, the connecting posts being made of resin, and the pipe body and the inner wall of the drill pipe body being clearance-fitted.

[0006] Preferably, the tube bodies are arranged at intervals on the connecting columns.

[0007] Preferably, a fixed tube is sleeved in the center of the tube body, the tube body and the fixed tube are coaxially arranged, a connecting plate is provided between the tube body and the fixed tube, and the connecting plates are evenly distributed between the tube body and the fixed tube.

[0008] Preferably, the connecting plate is arranged between two adjacent connecting columns.

[0009] Compared with the prior art, the advantages and positive effects of the present invention are:

[0010] 1. The utility model provides a cable-through type large-diameter grooved directional drill pipe. By improving the structure of the connecting pipe, the connection between the connecting pipe and the drill pipe body is achieved by using the connecting column on the side wall. The gap between the pipe body and the drill pipe body is used for connection, so that the connecting pipe and the drill pipe body can be detachably fixedly connected, thereby achieving the purpose of facilitating cable maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0012] Figure 1 A schematic structural diagram of a cable-type large-diameter grooved directional drill rod provided in Example 1;

[0013] Figure 2 A schematic structural diagram of the connecting pipe provided in Example 1;

[0014] Figure 3 A front view of the connecting pipe provided in Example 1;

[0015] Figure 4 A schematic structural diagram of the end portion of the plug post provided in Example 1;

[0016] In the above figures, 1. drill pipe body; 11. slot; 2. connecting pipe; 21. pipe body; 22. connecting column; 221. socket; 222. connecting hole; 23. fixing pipe; 24. connecting plate; 3. plug column. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1, as Figures 1 to 4 As shown, the present embodiment aims to provide a cable-through type large-diameter grooved directional drill rod which is convenient for cable maintenance. Considering that the main problem of the existing large-diameter grooved directional drill rods that is difficult to repair the cables is that the connecting pipe cannot be removed from the drill rod, for this reason, in order to facilitate maintenance, the cable-through type large-diameter grooved directional drill rod provided in the present embodiment includes a drill rod body 1 and a connecting pipe 2 sleeved in the drill rod body 1. In order to facilitate the removal of the connecting pipe 2 and ensure the stability of the fixation between the connecting pipe 2 and the drill rod body 1, in the present embodiment, the connecting pipe 2 includes a pipe body 21 and a connecting column 22 arranged on the outer wall of the pipe body 21. The connecting column 22 is arranged in a rectangular parallelepiped as a whole. The connecting columns 22 are evenly distributed on the outer wall of the pipe body 21. In the present embodiment, In the embodiment, a total of 8 connecting posts 22 are provided, and a socket 221 is provided on the connecting post 22. The socket 221 is provided along the long side direction of the connecting post 22 and passes through the connecting post 22. The cross section of the socket 221 is convex-shaped. The top of the socket 221 passes through the end face of the connecting post 22 away from the tube body 21. Connecting holes 222 are provided on both sides of the socket 221. The connecting holes 222 are rectangular and are close to the bottom of the socket 221. In this way, the end of the connecting post 22 away from the tube body 21 is divided into two lobes under the action of the socket 221 and the connecting hole 222. In order to make the two lobes of the connecting post 22 move to both sides, in this embodiment, a plug post 3 is provided in the socket 221. The cross section of the plug post 3 is rectangular, as shown in FIG. Figure 4 As shown, in order to facilitate the insertion of the plug 3, the end of the plug 3 is also set in a convex shape, which gradually changes from a convex shape to a rectangular shape. In this way, under the action of the plug 3, the two petals of the connecting column 22 will move to the sides. At the same time, a slot 11 that matches the plug 3 is provided on the inner wall of the drill pipe body 1. The cross section of the slot 11 is set in a trapezoidal shape. The material of the connecting column 22 is resin, and there is a clearance fit between the tube body 21 and the inner wall of the drill pipe body 1. In this way, under the action of the plug 3, the connecting column 22 will fill the slot 11, realizing the fixation between the connecting pipe 2 and the drill pipe body 1. The clearance fit between the tube body 21 and the inner wall of the drill pipe body 1 allows the plug 3 to fall off the connecting column 22 and the connecting column 22 to be pulled out of the slot 11, thereby facilitating the removal of the entire connecting pipe 2.

[0020] In order to facilitate the extraction and reduce the production cost, in the present embodiment, the tube body 21 is arranged at intervals on the connecting column 22. In this way, the connecting tube 2 can be extracted by continuously hooking the tube body 21 with a hook.

[0021] In order to facilitate the fixing of the cable and further facilitate the removal of the connecting tube 2, a fixing tube 23 is sleeved in the center of the tube body 21. The tube body 21 and the fixing tube 23 are coaxially arranged. A connecting plate 24 is arranged between the tube body 21 and the fixing tube 23. The connecting plates 24 are evenly distributed between the tube body 21 and the fixing tube 23. In this way, the connecting plates 24 can be hooked with a hook.

[0022] In order to provide strength to the entire connecting pipe 2, in this embodiment, a connecting plate 24 is provided between two adjacent connecting columns 22. In this way, the pipe body 21 is reinforced inwardly and outwardly, thereby ensuring the strength of the connecting pipe 2.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A cable-type large-diameter grooved directional drill pipe, comprising a drill pipe body and a connecting pipe sleeved inside the drill pipe body, characterized in that: The connecting tube includes a tube body and a connecting column arranged on the outer wall of the tube body. The connecting column is arranged in a rectangular shape, and the connecting column is evenly distributed on the outer wall of the tube body. A socket is provided on the connecting column, and the socket is arranged along the long side direction of the connecting column and passes through the connecting column. The cross-section of the socket is convex, and connecting holes are provided on both sides of the socket. The connecting hole is arranged near the bottom of the socket, and the end of the connecting column away from the tube body is divided into two petals under the action of the socket and the connecting hole. A plug is arranged in the socket, and the cross-section of the plug is rectangular. The end of the connecting column away from the tube body is arranged to both sides under the action of the plug, and a slot matching the plug is provided on the inner wall of the drill rod body. The cross-section of the slot is trapezoidal, and the material of the connecting column is resin. There is a gap fit between the tube body and the inner wall of the drill rod body.

2. The cable-type large-diameter grooved directional drill pipe according to claim 1, characterized in that: The tube bodies are arranged on the connecting columns at intervals.

3. The cable-type large-diameter grooved directional drill pipe according to claim 2, characterized in that: A fixed tube is sleeved at the center of the tube body, the tube body and the fixed tube are coaxially arranged, a connecting plate is arranged between the tube body and the fixed tube, and the connecting plates are evenly distributed between the tube body and the fixed tube.

4. The cable-type large-diameter grooved directional drill pipe according to claim 3, characterized in that: The connecting plate is arranged between two adjacent connecting columns.

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