High-corrosion-resistant coating drill rod

Abstract

The utility model provides a drill rod with a high anti-corrosion coating, which belongs to the field of drill rods, and comprises a drill rod body, a conical threaded pipe, an internal thread conical groove, a vent hole, a clamping mechanism and a locking mechanism, in the scheme, two clamping rings are arranged for movably sleeving a sleeve, and a limiting ring is arranged for limiting the position of the sleeve; through the arrangement of the limiting ring, the position of the sleeve can be limited through the limiting ring when the two drill rod bodies are spliced, and the clamping block is movably clamped to the two clamping rings, so that after the two drill rod bodies are spliced, the conical threaded pipe cannot move away from the inner thread conical groove, and the two drill rod bodies are prevented from being separated after being spliced; the drill rod body can rotate forwards and backwards, external threads are arranged for being in threaded connection with a threaded sleeve, the threaded sleeve is in threaded connection with the external threads, the threaded sleeve is matched with a limiting ring, the sleeve can be clamped, and the problem that when the drill rods are clamped in the prior art, the two drill rods are separated due to forward and reverse rotation switching of the drill rods can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of drill rods, in particular to a drill rod with a high corrosion resistance coating. Background Art

[0002] Drill pipe is a steel pipe with a threaded end that connects the drilling rig's surface equipment to the drilling and grinding equipment or bottom-hole assembly at the bottom of the well. Drill pipe transports drilling mud to the drill bit and, together with the drill bit, raises, lowers, or rotates the bottom-hole assembly. Drill pipe must withstand significant internal and external pressure, as well as twisting, bending, and vibration. During the oil and gas extraction and refining process, drill pipe can be used multiple times. Drill pipe is categorized into three types: kelly, drill pipe, and heavy-weight drill pipe.

[0003] The authorization publication number "CN211900490U" records "a drill rod, including a rod body, a center hole is provided on the rod body, a concave cavity is provided on the hole wall of the center hole, a rubber body is provided in the concave cavity, and a through hole connected to the center hole and with the same aperture is provided on the rubber body. By attaching a rubber layer to the inner hole wall of the above-mentioned drill rod, it does not affect the original grouting function, but can also effectively reduce the corrosion of mud and running water on the rod body, thereby increasing the service life of the drill rod. At the same time, it can also reduce the amount of mud used to a certain extent, reduce pollution to the environment, and provide a new idea for the design of drill rod structure."

[0004] The above patent reduces pollution to the environment, but it is not easy to achieve self-locking after the two drill rods are spliced. When the drill rods are stuck, since the two drill rods are connected by threads, the forward and reverse switching of the drill rods will cause the two drill rods to separate. Utility Model Content

[0005] The utility model aims to provide a drill rod with a high corrosion resistance coating, aiming to solve the problem in the prior art that when a drill rod is stuck, the forward and reverse switching of the drill rod may cause the two drill rods to separate.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] High corrosion resistant coated drill pipe, including:

[0008] Drill pipe body;

[0009] A tapered threaded tube, located at the bottom of the drill pipe body;

[0010] An internal threaded tapered groove is provided at one end of the drill rod body;

[0011] A vent hole is provided on the drill pipe body and the tapered threaded tube;

[0012] A clamping mechanism is provided on the drill rod body;

[0013] The locking mechanism is arranged on the drill rod body.

[0014] As a preferred solution of the present invention, the clamping mechanism includes:

[0015] A clamping component is provided on the drill rod body;

[0016] The docking component is arranged on the clamping component.

[0017] As a preferred solution of the present invention, the clamping component includes a limiting ring and a clamping ring, two clamping rings are provided, and the two clamping rings are fixedly connected to the circumferential surface of the drill rod body. The limiting ring is fixedly connected to the circumferential surface of the drill rod body, and the limiting ring is fixedly connected to one of the clamping rings.

[0018] As a preferred solution of the present invention, the docking component includes a sleeve, a clamping block and a clamping slot B. The sleeve is movably mounted on one of the clamping rings. There are multiple clamping blocks, and the multiple clamping blocks are fixedly connected to the circumferential inner wall of the sleeve, and the multiple clamping blocks are clamped on the clamping ring. There are multiple clamping slots B, and the multiple clamping slots B are opened on the circumferential surface of the sleeve.

[0019] As a preferred solution of the present invention, the locking mechanism includes a threaded sleeve, an external thread and a slot C, the external thread is opened on the circumferential surface of the drill pipe body, the threaded sleeve is threadedly connected to the external thread, and there are two slots C, both of which are opened on the circumferential surface of the threaded sleeve, and the two slots C are symmetrically arranged.

[0020] As a preferred solution of the present invention, a plurality of slots A are provided on the circumferential surface of the drill rod body, and the plurality of slots A are symmetrically arranged.

[0021] As a preferred solution of the present invention, the surface of the drill rod body is sprayed with high corrosion resistance PM350P coating.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In this solution, two clamping rings are provided for movably sleeved sleeves, and a limiting ring is provided for limiting the position of the sleeve, so that the position of the sleeve can be limited by the limiting rings when the two drill pipe bodies are spliced ​​together, and the clamping block is movably clamped on the two clamping rings, so that after the two drill pipe bodies are spliced ​​together, the tapered threaded tube will not be removed from the internal thread tapered groove, thereby preventing the two drill pipe bodies from separating after splicing, and allowing the drill pipe bodies to rotate forward and backward.

[0024] 2. In this solution, the external thread is used to thread the threaded sleeve, which is threadedly connected to the external thread. The threaded sleeve cooperates with the limit ring to clamp the sleeve, thereby limiting the movement of the sleeve. The slot C is provided to facilitate the rotation of the threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 It is a cross-sectional view of the utility model;

[0028] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 It is an exploded view of the utility model;

[0030] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle.

[0031] In the figure: 1. Drill pipe body; 2. Threaded sleeve; 3. Sleeve; 4. Tapered threaded pipe; 5. External thread; 6. Slot A; 7. Limit ring; 8. Snap ring; 9. Internal thread tapered groove; 10. Vent; 11. Block; 12. Slot B; 13. Slot C. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1

[0034] See also Figure 1-Figure 5 , the technical solutions provided in this embodiment are as follows:

[0035] The high-corrosion-resistant coated drill pipe consists of a drill pipe body 1, a tapered threaded tube 4, an internally threaded tapered groove 9, a vent 10, a clamping mechanism and a locking mechanism. The tapered threaded tube 4 is arranged at the bottom of the drill pipe body 1, the internally threaded tapered groove 9 is opened at one end of the drill pipe body 1, and the vent 10 is opened on the drill pipe body 1 and the tapered threaded tube 4.

[0036] In a specific embodiment of the present utility model, the setting of the internal threaded tapered groove 9 is used to connect the tapered threaded pipe 4, and the tapered threaded pipe 4 is threadedly connected to the internal threaded tapered groove 9, so that multiple drill pipe bodies 1 can be spliced ​​together, and the setting of the vent hole 10 is used to transport gas and water, thereby backwash drilling.

[0037] Specifically, the clamping component is provided on the drill rod body 1, and the clamping component includes a limiting ring 7 and a clamping ring 8. Two clamping rings 8 are provided, and the two clamping rings 8 are fixedly connected to the circumferential surface of the drill rod body 1. The limiting ring 7 is fixedly connected to the circumferential surface of the drill rod body 1, and the limiting ring 7 is fixedly connected to one of the clamping rings 8.

[0038] In a specific embodiment of the present utility model, two clamping rings 8 are provided for movably sleeved sleeve 3, and a limiting ring 7 is provided for limiting the position of sleeve 3, so that the position of sleeve 3 can be limited by limiting ring 7 when two drill rod bodies 1 are spliced, and the clamping block 11 is movably clamped on the two clamping rings 8, so that after the two drill rod bodies 1 are spliced, the tapered threaded tube 4 will not be removed from the internal thread tapered groove 9, thereby preventing the two drill rod bodies 1 from separating after splicing, so that the drill rod body 1 can be rotated forward and backward.

[0039] Specifically, the docking component is provided on the clamping component, and the docking component includes a sleeve 3, a clamping block 11 and a clamping groove B12. The sleeve 3 is movably sleeved on one of the clamping rings 8. There are multiple clamping blocks 11, and the multiple clamping blocks 11 are fixedly connected to the circumferential inner wall of the sleeve 3, and the multiple clamping blocks 11 are clamped on the clamping ring 8. There are multiple clamping grooves B12, and the multiple clamping grooves B12 are opened on the circumferential surface of the sleeve 3.

[0040] In a specific embodiment of the present invention, the sleeve 3 is configured to connect to the clamping block 11 , and the clamping block 11 is configured to be clamped onto the two clamping rings 8 .

[0041] Specifically, the locking mechanism is provided on the drill pipe body 1, and the locking mechanism includes a threaded sleeve 2, an external thread 5 and a card groove C13. The external thread 5 is opened on the circumferential surface of the drill pipe body 1, and the threaded sleeve 2 is threadedly connected to the external thread 5. There are two card grooves C13, both of which are opened on the circumferential surface of the threaded sleeve 2, and the two card grooves C13 are symmetrically arranged.

[0042] In a specific embodiment of the present utility model, the external thread 5 is provided for threaded connection with the threaded sleeve 2, and the threaded sleeve 2 is threadedly connected to the external thread 5, and the threaded sleeve 2 cooperates with the limiting ring 7 to clamp the sleeve 3, thereby limiting the movement of the sleeve 3, and the setting of the card groove C13 facilitates the rotation of the threaded sleeve 2.

[0043] Specifically, a plurality of slots A6 are provided on the circumferential surface of the drill rod body 1 , and the plurality of slots A6 are symmetrically arranged.

[0044] In a specific embodiment of the present invention, the arrangement of the clamping groove A6 is used to limit the rotation of the drill rod body 1 .

[0045] Specifically, the surface of the drill pipe body 1 is sprayed with high corrosion resistance PM350P coating.

[0046] In a specific embodiment of the present invention, the surface of the drill pipe body 1 is sprayed with a highly corrosion-resistant PM350P coating.

[0047] The working principle or working process of the high-corrosion-resistant coating drill rod provided by the utility model is as follows: the two clamping rings 8 are set to movably sleeve the sleeve 3, and the limiting ring 7 is set to limit the position of the sleeve 3, so that the position of the sleeve 3 can be limited by the limiting ring 7 when the two drill rod bodies 1 are spliced, and the clamping block 11 is movably clamped on the two clamping rings 8, so that after the two drill rod bodies 1 are spliced, the tapered threaded tube 4 will not move out of the internal thread tapered groove 9, thereby preventing the two drill rod bodies 1 from separating after splicing, so that the drill rod body 1 can rotate forward and backward, and the external thread 5 is set to be threadedly connected to the threaded sleeve 2, and the threaded sleeve 2 is threadedly connected to the external thread 5, and the threaded sleeve 2 cooperates with the limiting ring 7 to clamp the sleeve 3, thereby limiting the movement of the sleeve 3, and the setting of the clamping groove C13 facilitates the rotation of the threaded sleeve 2.

[0048] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. High anti-corrosion coating drill pipe, characterized by: include: Drill pipe body (1); A tapered threaded tube (4) is provided at the bottom of the drill rod body (1); An internal threaded tapered groove (9) is provided at one end of the drill rod body (1); A vent hole (10) is provided on the drill rod body (1) and the tapered threaded tube (4); A clamping mechanism is provided on the drill rod body (1); A locking mechanism is provided on the drill rod body (1); The clamping mechanism comprises: A clamping component is provided on the drill rod body (1); A docking component, provided on the clamping component; The clamping component comprises a limiting ring (7) and a clamping ring (8), two clamping rings (8) are provided, and both of the two clamping rings (8) are fixedly connected to the circumferential surface of the drill rod body (1), the limiting ring (7) is fixedly connected to the circumferential surface of the drill rod body (1), and the limiting ring (7) is fixedly connected to one of the clamping rings (8); The docking component comprises a sleeve (3), a clamping block (11) and a clamping groove B (12); the sleeve (3) is movably sleeved on one of the clamping rings (8); a plurality of clamping blocks (11) are provided, and the plurality of clamping blocks (11) are all fixedly connected to the circumferential inner wall of the sleeve (3), and the plurality of clamping blocks (11) are all clamped on the clamping ring (8); a plurality of clamping grooves B (12) are provided, and the plurality of clamping grooves B (12) are all opened on the circumferential surface of the sleeve (3).

2. The high corrosion resistance coated drill pipe according to claim 1, characterized in that: The locking mechanism comprises a threaded sleeve (2), an external thread (5) and a clamping groove C (13); the external thread (5) is provided on the circumferential surface of the drill rod body (1); the threaded sleeve (2) is threadedly connected to the external thread (5); two clamping grooves C (13) are provided, both of which are provided on the circumferential surface of the threaded sleeve (2), and the two clamping grooves C (13) are symmetrically arranged.

3. The high corrosion resistance coated drill pipe according to claim 2, characterized in that: A plurality of clamping grooves A (6) are provided on the circumferential surface of the drill rod body (1), and the plurality of clamping grooves A (6) are symmetrically arranged.

4. The high corrosion resistance coated drill pipe according to claim 3, characterized in that: The surface of the drill rod body (1) is sprayed with high corrosion resistance PM350P paint.

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