CN217462039U - Multi-column polycrystalline diamond compact's drill bit - Google Patents
Multi-column polycrystalline diamond compact's drill bit Download PDFInfo
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- CN217462039U CN217462039U CN202220630894.2U CN202220630894U CN217462039U CN 217462039 U CN217462039 U CN 217462039U CN 202220630894 U CN202220630894 U CN 202220630894U CN 217462039 U CN217462039 U CN 217462039U
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- drill bit
- sleeve
- polycrystalline diamond
- diamond compact
- connecting rod
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Abstract
The utility model discloses a multiseriate polycrystalline diamond compact's drill bit mainly relates to the well drilling field. The drill bit comprises a drill bit body, a connecting rod is arranged at the bottom of the drill bit body, the connecting rod is connected with a drill bit mounting seat, a plurality of rows of polycrystalline diamond cutting teeth are arranged on the drill bit body, a hollow movable protection device is arranged on the drill bit mounting seat, the protection device is sleeved outside the connecting rod, a telescopic device is arranged in the protection device, and a metal adsorption device is arranged at the bottom of the telescopic device. The utility model discloses beneficial effect: and metal falling objects at the bottom of the well are further cleaned at the initial stage of the drill bit operation, so that the influence on the drill bit is reduced as much as possible, the service life of the drill bit is prolonged, resources are saved, and the mining efficiency is improved.
Description
Technical Field
The utility model relates to a well drilling field specifically is a multiseriate polycrystalline diamond compact's drill bit.
Background
The polycrystalline diamond compact bit has the characteristics of high wear resistance, high impact resistance, inclination prevention, mud pack prevention, high rotating speed and the like. The application of the method in the drilling process can greatly reduce the exploitation cost of the oil field, accelerate the exploitation speed and improve the economic benefit of the oil field. Before the drilling tool is used, the bottom of the well must be cleaned to ensure that no metal falling objects exist, so that the drilling bit is protected, and the service life is prolonged. The well bottom needs to be cleaned by a tool firstly, sometimes, fine metal falling objects can not be cleaned, the drill bit is influenced in subsequent operation, the service life of the drill bit is shortened, resource waste is caused, the drilling efficiency is low, and the mining speed is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multiseriate polycrystalline diamond compact's drill bit can solve the prior art problem to a certain extent, can further clear up shaft bottom metal junk at the drill bit operation initial stage, and the minimize is to the influence of drill bit, extension drill bit life, and resources are saved improves the exploitation efficiency.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme to realize:
the utility model provides a multiseriate polycrystalline diamond compact's drill bit, includes the drill bit body, the drill bit body bottom is equipped with the connecting rod, the drill bit mount pad is connected to the connecting rod, be equipped with multiseriate polycrystalline diamond cutting teeth on the drill bit body, be equipped with hollow mobilizable protection device on the drill bit mount pad, the protection device cover is established in the outside of connecting rod, be equipped with the telescoping device in the protection device, the telescoping device bottom is equipped with metal adsorption device.
Protection device is including installing the first sleeve on the drill bit mount pad, it is equipped with the second sleeve to slide in the first sleeve, be equipped with the spout on the second sleeve lateral wall, first sleeve bottom is equipped with the slider with spout matched with, the slider can be followed the spout and removed, be equipped with downwardly extending's first telescopic link on the first telescopic interior diapire, the telescopic bottom of second is connected to first telescopic link.
The telescopic device is a second telescopic rod, and a magnet piece is arranged at the bottom of the second telescopic rod.
The mounting seat is provided with a horn-shaped drainage cover with a downward opening, and the bottom of the drainage cover is connected with the top of the first sleeve.
The drainage cover is provided with a plurality of liquid injection grooves, and the mounting seat is provided with a liquid collecting groove matched with the liquid injection grooves.
The metal adsorption device is arranged on the connecting rod and close to the vertical position of the liquid collecting tank.
And the middle part of the drill bit body is provided with convex divergently arranged cutting teeth.
Contrast prior art, the beneficial effects of the utility model reside in that:
through the metal adsorption device arranged on the telescopic device on the drill bit mounting seat, at the initial stage of drill bit operation, the drill bit is not completely contacted with the ground, when the rotating speed of the drill bit is lower, the metal adsorption device is sent to the bottom of the well downwards in advance, the metal falling objects at the bottom of the well are cleaned roughly by rotating the drill bit, the metal adsorption device is further supplemented to the cleaning work at the bottom of the well relatively, the influence on the drill bit is reduced as much as possible, the service life of the drill bit is prolonged, resources are saved, and the mining efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a bottom view of the present invention;
fig. 3 is an enlarged schematic view of part a of the present invention.
The reference numbers in the drawings: 1. a bit body; 2. a connecting rod; 3. a drill bit mounting seat; 4. cutting teeth; 5. a first sleeve; 6. a second sleeve; 7. a chute; 8. a slider; 9. a first telescopic rod; 10. a second telescopic rod; 11. A magnet sheet; 12. a drainage cover; 13. a liquid injection groove; 14. a liquid collecting tank.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications can be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
A multiseriate polycrystalline diamond compact's drill bit, including drill bit body 1, drill bit body 1 bottom is equipped with connecting rod 2, drill bit mount pad 3 is connected to connecting rod 2, be equipped with multiseriate polycrystalline diamond cutting teeth 4 on the drill bit body 1, be equipped with hollow mobilizable protection device on the drill bit mount pad 3, the protection device cover is established in connecting rod 2's outside, be equipped with telescoping device in the protection device, the telescoping device bottom is equipped with metal adsorption device. The protection device is used for protecting the telescopic device, the metal adsorption device and the adsorbed metal falling objects. The retractable device may be a device in which a spring is provided in the retractable rod. The cleaning operation is further supplemented and cleaned before or in the initial stage of the drill bit operation, and at the moment, the metal falling objects with higher probability are smaller in size and can be adsorbed by the telescopic device.
The utility model discloses in use, before the drill bit operation, carry out the clearance of metal junk earlier to the shaft bottom, at drill bit operation initial stage, the drill bit is sent into in the well, still not complete with ground contact at it, the drill bit does not change or when the rotational speed is lower, along with the rotation of drill bit, send metal adsorption device to or be close to the shaft bottom downwards, can further clear up the shaft bottom metal junk, the telescoping device work is withdrawed metal adsorption device to protection device in, further prevent to lead to it to drop back in the well with the wall of a well collision.
Further, protection device is including installing first sleeve 5 on drill bit mount pad 3, it is equipped with second sleeve 6 to slide in first sleeve 5, be equipped with spout 7 on the 6 lateral walls of second sleeve, 5 bottoms of first sleeve are equipped with and spout 7 matched with slider 8, slider 8 can remove along spout 7, be equipped with downwardly extending's first telescopic link 9 on the inner bottom wall of first sleeve 5, the bottom of second sleeve 6 is connected to first telescopic link 9. Can set up the spring in first telescopic link, it is flexible to drive first telescopic link through the drill bit vibration, can follow first sleeve gliding second sleeve from top to bottom and provide the protection for telescoping device. A certain diameter difference exists between the connecting rod and the drill bit mounting seat, and a placing position can be provided for metal objects adsorbed by the connecting rod. Vibration is generated along with cutting or collision of the drill bit and the well bottom or the well wall, then the first telescopic rod vibrates, the second sleeve slides, the telescopic device sends out the metal adsorption device to be in contact with or close to the well bottom, and metal in the well bottom is cleaned and adsorbed and is not easy to drop. The operation time of the drilling head is prolonged, the dropped substances, soft mud and other mixed drilling fluids are cut to form mud substances, and the mud substances are adhered to the protection device and the metal adsorption device, so that the adsorbed metal is further prevented from dropping back to the bottom of the well.
Further, the telescopic device is a second telescopic rod 10, and a magnet sheet 11 is arranged at the bottom of the second telescopic rod 10. The spring can be arranged in the second telescopic rod, so that the vibration is caused under the conditions that the drill bit possibly collides with a well wall or the initial low rotating speed of the drill bit in the process of downwards conveying the drill bit, and the metal adsorption device is repeatedly and downwards conveyed to or close to the well bottom to clean the well bottom.
Further, a horn-shaped drainage cover 12 with a downward opening is arranged on the mounting base 3, and the bottom of the drainage cover 12 is connected with the top of the first sleeve 5. The flow guide cover protects the first sleeve, reduces the pressure on the first sleeve due to the flushing of the drilling fluid, and provides a passage for the drilling fluid.
Furthermore, a plurality of liquid injection grooves 13 are arranged on the drainage cover 12, and a liquid collecting groove 14 matched with the liquid injection grooves 13 is arranged on the mounting base 3. The outside of the first sleeve is also provided with a groove matched with the liquid injection groove and the liquid collection groove, and the groove, the liquid injection groove and the liquid collection groove provide a passage for the drilling fluid.
Further, the metal adsorption means is provided on the connecting rod 2 at a position close to the vertical direction of the sump 14. The metal adsorption device can be conveniently sent downwards to the lower part of the drill bit body.
Furthermore, the middle position of the drill body 1 is provided with a plurality of cutting teeth 4 which are arranged in a divergent shape. The divergent cutting teeth can help the drill bit to crush and crush rock, and help metal falling objects possibly existing in the middle of the drill bit corresponding to the position of the well bottom to move outwards, so that the adsorption is facilitated.
Example (b):
the utility model provides a multiseriate polycrystalline diamond compact's drill bit, includes drill bit body 1, 1 bottom of drill bit body is equipped with connecting rod 2, drill bit mount pad 3 is connected to connecting rod 2, be equipped with multiseriate polycrystalline diamond cutting teeth 4 on the drill bit body 1, be equipped with hollow mobilizable protection device on the drill bit mount pad 3, the protection device cover is established in the outside of connecting rod 2, be equipped with the telescoping device in the protection device, the telescoping device bottom is equipped with metal adsorption device. Protection device is including installing first sleeve 5 on drill bit mount pad 3, it is equipped with second sleeve 6 to slide in first sleeve 5, be equipped with spout 7 on the 6 lateral walls of second sleeve, 5 bottoms of first sleeve are equipped with and spout 7 matched with slider 8, 7 removal in spout can be followed to slider 8, be equipped with downwardly extending's first telescopic link 9 on the inner diapire of first sleeve 5, set up the spring in first telescopic link, have certain diameter difference between connecting rod and the drill bit mount pad, telescoping device is second telescopic link 10, 10 bottoms of second telescopic link are equipped with magnet piece 11. The spring is arranged in the second telescopic rod, the horn-shaped drainage cover 12 with the downward opening is arranged on the mounting seat 3, and the bottom of the drainage cover 12 is connected with the top of the first sleeve 5. The drainage cover 12 is provided with a plurality of liquid injection grooves 13, and the mounting base 3 is provided with a liquid collecting groove 14 matched with the liquid injection grooves 13. The metal-adsorbing means is provided on the connecting rod 2 at a position close to the vertical direction of the sump 14. And the middle part of the bit body 1 is provided with convex divergently-arranged cutting teeth 4.
Claims (7)
1. The utility model provides a multi-column polycrystalline diamond compact's drill bit, includes drill bit body (1), drill bit body (1) bottom is equipped with connecting rod (2), drill bit mount pad (3) are connected in connecting rod (2), be equipped with multi-column polycrystalline diamond cutting teeth (4), characterized by on drill bit body (1): the drill bit mounting seat (3) is provided with a hollow movable protection device, the protection device is sleeved outside the connecting rod (2), a telescopic device is arranged in the protection device, and a metal adsorption device is arranged at the bottom of the telescopic device.
2. The multi-row polycrystalline diamond compact bit of claim 1, wherein: protection device is including installing first sleeve (5) on drill bit mount pad (3), it is equipped with second sleeve (6) to slide in first sleeve (5), be equipped with spout (7) on second sleeve (6) lateral wall, first sleeve (5) bottom is equipped with slider (8) with spout (7) matched with, spout (7) removal can be followed in slider (8), be equipped with downwardly extending's first telescopic link (9) on the interior diapire of first sleeve (5), the bottom of second sleeve (6) is connected in first telescopic link (9).
3. The multi-row polycrystalline diamond compact bit of claim 1, wherein: the telescopic device is a second telescopic rod (10), and a magnet piece (11) is arranged at the bottom of the second telescopic rod (10).
4. The multi-row polycrystalline diamond compact bit of claim 1, wherein: the drill bit mounting seat (3) is provided with a horn-shaped drainage cover (12) with a downward opening, and the bottom of the drainage cover (12) is connected with the top of the first sleeve (5).
5. The multi-row polycrystalline diamond compact bit of claim 4, wherein: a plurality of liquid injection grooves (13) are formed in the drainage cover (12), and a liquid collecting groove (14) matched with the liquid injection grooves (13) is formed in the drill bit mounting seat (3).
6. The multi-row polycrystalline diamond compact bit of claim 5, wherein: the metal adsorption device is arranged on the connecting rod (2) at a position close to the vertical direction of the liquid collecting tank (14).
7. The multi-row polycrystalline diamond compact bit of claim 1, wherein: and the middle part of the drill body (1) is provided with convex divergently-arranged cutting teeth (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220630894.2U CN217462039U (en) | 2022-03-22 | 2022-03-22 | Multi-column polycrystalline diamond compact's drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220630894.2U CN217462039U (en) | 2022-03-22 | 2022-03-22 | Multi-column polycrystalline diamond compact's drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217462039U true CN217462039U (en) | 2022-09-20 |
Family
ID=83264745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220630894.2U Active CN217462039U (en) | 2022-03-22 | 2022-03-22 | Multi-column polycrystalline diamond compact's drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217462039U (en) |
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2022
- 2022-03-22 CN CN202220630894.2U patent/CN217462039U/en active Active
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