CN210829089U

CN210829089U - Rock geology drill bit of superhard material

Info

Publication number: CN210829089U
Application number: CN201921628322.5U
Authority: CN
Inventors: 彭卫东; 张成东; 李同洪; 马成新
Original assignee: Ezhou Branch Of Hubei Product Quality Supervision And Inspection Institute; Hubei Dahao Tools Co ltd
Current assignee: Ezhou Branch Of Hubei Product Quality Supervision And Inspection Institute; Hubei Dahao Tools Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-06-23
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a rock geology drill bit of superhard, bore including connecting pipe and alloy, connecting pipe and alloy bore fixed connection, and the top of connecting pipe has seted up the connector, the chip groove has been seted up to the surface of connecting pipe, the alloy is bored including the auger bit, the surface of auger bit is provided with the drill bit matrix, the surface of drill bit matrix is provided with the piece of cutting the teeth, and the lower skin weld of drill bit matrix has superhard drill block, the utility model relates to a geology drill bit technical field. This rock geology drill bit of superhard matter has characteristics such as fast, longe-lived to the superhard diamond bit of drill bit bottom can improve the hardness of drill bit and rock contact site, reduces the loss of drill bit body, is applicable to different terranes, and can effectively reduce the problem of drill bit off tracking, skidding, at the in-process of probing, if meet groundwater, can cool down the drill bit through inner cavity and interior water pipe.

Description

Rock geology drill bit of superhard material

Technical Field

The utility model relates to a geology drill bit technical field specifically is a rock geology drill bit of superhard material.

Background

The bit is the main tool for breaking rock in the drilling process, the well is formed by breaking rock with the bit, the quality of a well is good, the time used is related to the mutual matching degree between the bit and the stratum besides the characteristics of the rock of the stratum to be drilled and the performance of the bit, the reasonable selection of the bit plays an important role in improving the drilling speed and reducing the comprehensive drilling cost, the bit is one of important tools for petroleum drilling work, and particularly has great influence on the drilling quality, the drilling speed and the drilling cost, and the PDC bit is a rock breaking tool widely used in the current petroleum and natural gas exploration and development industries.

The existing rock geological drill bit is used for hard rock, has large abrasion and slow drilling speed, and is easy to generate hole inclination when drilling in an inhomogeneous stratum, so that the drill bit is subjected to the action of concentrated stress, the abrasion of a composite sheet is aggravated or the composite sheet is suddenly damaged, and the drilling quality is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a rock geology drill bit of superhard has solved current rock geology drill bit and is being used for hard rock wearing and tearing big, and drilling rate is slow, creeps into in heterogeneous stratum moreover and appears the hole to one side easily, can make the drill bit receive concentrated stress effect, has aggravated the wearing and tearing of compound piece or has made it take place destruction suddenly, leads to the problem that drilling quality reduces.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a rock geology drill bit of superhard, bores including connecting pipe and alloy, connecting pipe and alloy bore fixed connection, and the top of connecting pipe has seted up the connector, the chip groove has been seted up to the surface of connecting pipe, the alloy is bored including auger bit, auger bit's surface is provided with the drill bit matrix, the surface of drill bit matrix is provided with cuts the tooth piece, and the lower skin weld of drill bit matrix has superhard drill block, the inner cavity has been seted up to auger bit's inside, the bottom welding of inner cavity has the fixed block.

Preferably, a water outlet is formed in one side, close to the chip removal groove, of the outer surface of the connecting pipe, an inner water pipe is formed inside the connecting pipe, a water outlet of the inner water pipe is communicated with the water outlet, and a water inlet of the inner water pipe is communicated with the inner cavity.

Preferably, the chip grooves are spirally distributed on the outer surface of the connecting pipe, and electroplated layers are electroplated on the outer surfaces of the connecting pipe and the chip grooves.

Preferably, the bottom end of the auger bit is positioned in the inner part of the bit carcass, and the auger bit is formed by winding two columns.

Preferably, the number of the superhard drill blocks on each drill bit matrix is two, and the superhard drill blocks are made of chromium alloy materials.

Preferably, the spiral drill bit and the drill bit matrix are made of the same material, the tooth cutting blocks are made of polycrystalline diamond compact materials, the tooth cutting blocks are arranged on each drill bit matrix in the same number, and the tooth cutting blocks are arranged at the same height.

Advantageous effects

The utility model provides a rock geology drill bit of superhard material. Compared with the prior art, the method has the following beneficial effects:

(1) the superhard rock geological drill bit is provided with a chip removal groove through the outer surface of the connecting pipe, the alloy drill bit comprises a spiral drill bit body, the outer surface of the spiral drill bit body is provided with a drill bit matrix, the outer surface of the drill bit matrix is provided with a tooth cutting block, the lower surface of the drill bit matrix is welded with a superhard drill block, the bottom end of the spiral drill bit is positioned inside the drill bit matrix, the spiral drill bit is formed by winding two columns, the number of the superhard drill blocks on each drill bit matrix is two, the superhard drill block is a component made of chromium alloy, the number of the tooth cutting blocks on each drill bit matrix is the same, and the height of the tooth cutting blocks is the same The problem of slipping.

(2) This rock geology drill bit of superhard, inner cavity has been seted up through auger bit's inside, the bottom welding of inner cavity has the fixed block, the outlet has been seted up to one side that the connecting pipe surface is close to the chip groove, and the inner water pipe has been seted up to the inside of connecting pipe, the delivery port and the outlet intercommunication of inner water pipe, and the water inlet and the inner cavity intercommunication of inner water pipe, the chip groove personally submits the heliciform at the outward appearance of connecting pipe and distributes, the outer surface of connecting pipe and chip groove all is electroplated with the plating layer, this novel drill bit is at the in-process of probing, if meet groundwater, can cool down the drill bit through inner cavity and inner water pipe, and the inner cavity is when not using, can prevent through inside fixed block up great rock with it, simultaneously through the chip groove, can be in the resistance of.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a bottom view of the present invention.

In the figure: 1. a connecting pipe; 2. a connecting port; 3. alloy drilling; 4. a chip groove; 5. a water outlet; 6. a drill bit matrix; 7. a helical drill bit; 8. a gear cutting block; 9. a superhard drill block; 10. electroplating layer; 11. an inner cavity; 12. a fixed block; 13. an inner water pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a rock geology drill bit of superhard, bore 3 including connecting pipe 1 and alloy, connecting pipe 1 and alloy bore 3 fixed connection, and the connector 2 has been seted up on the top of connecting pipe 1, chip groove 4 has been seted up to the surface of connecting pipe 1, chip groove 4 is the heliciform in the surface of connecting pipe 1 and distributes, the surface of connecting pipe 1 and chip groove 4 all is electroplated and has electroplated layer 10, electroplated layer 10 adopts zinc-nickel alloy, alloy bores 3 and includes auger bit 7, auger bit 7's bottom is located the inside of drill bit matrix 6, and auger bit 7 is formed by two cylinder windings, auger bit 7's surface is provided with drill bit matrix 6, drill bit matrix 6 is provided with a plurality ofly, drill bit matrix 6's surface is provided with cuts tooth piece 8, every drill bit matrix 6 surface all is provided with a plurality of cuts tooth piece 8, auger bit 7 and drill bit matrix 6's material is the same, auger bit 7, Chromium and molybdenum alloy are machined, the tooth cutting block 8 is a component made of a polycrystalline diamond composite sheet, the number of the tooth cutting blocks 8 on each drill bit matrix 6 is the same, the height of the protrusions of the tooth cutting blocks 8 is the same, the superhard drill blocks 9 are welded on the lower surface of each drill bit matrix 6, the number of the superhard drill blocks 9 on each drill bit matrix 6 is two, and the superhard drill blocks 9 are components made of chromium alloy, the novel drill bit has the characteristics of high speed, long service life and the like, the superhard drill blocks 9 at the bottom end of the drill bit can improve the hardness of the contact part of the drill bit and rocks, reduce the loss of the drill bit body, is suitable for different rock stratums and can effectively reduce the problems of deviation and slippage of the drill bit, an inner cavity 11 is arranged inside the spiral drill bit 7, a water outlet 5 is arranged on one side, close to a chip discharge groove 4, of the outer surface of the connecting pipe 1, the delivery port and the outlet 5 intercommunication of inner tube 13, and the water inlet and the interior cavity 11 intercommunication of inner tube 13, the bottom welding of interior cavity 11 has fixed block 12, fixed block 12 is provided with a plurality ofly, this novel drill bit is at the in-process of probing, if meet groundwater, can cool down the drill bit through interior cavity 11 and inner tube 13, and interior cavity 11 is when not using, can prevent through inside fixed block 12 that great rock from blockking up it, simultaneously through chip groove 4, can be in the resistance that reduces broken rock to the drill bit.

When the welding tool works, firstly, the connecting pipe 1 is electroplated, the zinc-nickel alloy is electroplated on the outer side of the connecting pipe 1 to form an electroplated layer 10, during electroplating, a connector 2 and a water outlet 5 of the connecting pipe are required to be sealed, then, the alloy drill 3 is subjected to heat treatment, a drill bit matrix 6 is drilled after the heat treatment, the tooth cutting blocks are pressed into the drilled holes to be in interference connection, then, the connecting pipe 1 and the alloy drill 3 are brazed, then, the superhard drill block 9 and the drill bit matrix 6 are brazed, and when the superhard drill block 9 is damaged, the brazed part can be cleaned and then is welded again; if groundwater is encountered during drilling, it may enter the interior of the drill bit along the interior cavity 11 and eventually exit the drain 5 along the interior water tube 13.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rock geology drill bit of superhard, includes that connecting pipe (1) and alloy bore (3), connecting pipe (1) and alloy bore (3) fixed connection, and connector (2), its characterized in that have been seted up on the top of connecting pipe (1): chip groove (4) have been seted up to the surface of connecting pipe (1), alloy bores (3) including auger bit (7), the surface of auger bit (7) is provided with drill bit matrix (6), the surface of drill bit matrix (6) is provided with cuts tooth piece (8), and the lower skin weld of drill bit matrix (6) has superhard drill block (9), inner cavity (11) have been seted up to the inside of auger bit (7), the bottom weld of inner cavity (11) has fixed block (12).

2. An ultrahard rock geological drill according to claim 1, characterized in that: one side that connecting pipe (1) surface is close to chip groove (4) has seted up outlet (5), and the inside of connecting pipe (1) has seted up interior water pipe (13), the delivery port and outlet (5) the intercommunication of interior water pipe (13), and the water inlet and interior cavity (11) the intercommunication of interior water pipe (13).

3. An ultrahard rock geological drill according to claim 2, characterized in that: the outer surface of the connecting pipe (1) is spirally distributed by the chip grooves (4), and electroplated layers (10) are electroplated on the outer surfaces of the connecting pipe (1) and the chip grooves (4).

4. An ultrahard rock geological drill according to claim 1, characterized in that: the bottom end of the spiral drill bit (7) is positioned inside the drill bit matrix (6), and the spiral drill bit (7) is formed by winding two columns.

5. An ultrahard rock geological drill according to claim 4, characterized in that: the number of the superhard drill blocks (9) on each drill bit matrix (6) is two, and the superhard drill blocks (9) are made of chromium alloy materials.

6. An ultrahard rock geological drill according to claim 5, characterized in that: the spiral bit (7) and the bit matrix (6) are made of the same material, the tooth cutting block (8) is a component made of a polycrystalline diamond compact, the number of the tooth cutting block (8) on each bit matrix (6) is the same, and the height of the tooth cutting block (8) is the same.