CN216841454U

CN216841454U - Oil drilling drill bit nozzle

Info

Publication number: CN216841454U
Application number: CN202220438760.0U
Authority: CN
Inventors: 张静; 高波; 张黎明
Original assignee: Shijiazhuang Hengrun Petroleum Additives Co ltd
Current assignee: Shijiazhuang Hengrun Petroleum Additives Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-06-28
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses an oil drilling drill bit nozzle relates to oil drilling technical field, and the following scheme of present proposal is proposed, including setting up the runner in the drill bit body, the welding has solid fixed ring in the runner, and the nozzle is installed on the top of runner, and the one end of nozzle sets up to the step, and the outer wall joint of step is on solid fixed ring, and the inner wall butt of step has fixed pipe, forms the annular chamber between the outer wall of fixed pipe and the inner wall of nozzle, and two inlet openings have been seted up to the one end that fixed pipe is close to the step, and the other end of fixed pipe and nozzle is connected with the closing plate. The utility model discloses in, during water among the drill bit body runner entered into fixed pipe, entered into the annular chamber from the inlet opening again, at last from two hole for water spraying blowout twice rivers of blowout respectively, improved the impact force to the stratum, be favorable to the purification in shaft bottom, supported the clamp ring through the installation and offset with the closing plate, make the nozzle fixed then, reinforcing stability improves structural strength, the effectual life who improves the nozzle.

Description

Oil drilling drill bit nozzle

Technical Field

The utility model relates to an oil drilling technical field especially relates to an oil drilling drill bit nozzle.

Background

In the process of petroleum drilling, in order to discharge a large amount of rock debris generated during drilling of a drill bit, a high-pressure pump is generally arranged on the ground, then specially prepared drilling fluid is pumped into a drill rod from the ground and is led to the drill bit at the bottom of a well all the way, high-speed jet flow is formed through a nozzle arranged in a drill bit chip removal groove, the bottom of the well is flushed, the rock debris is taken away, the rock debris flows into a well hole annular space through the chip removal groove, and finally the rock debris returns to the ground along with drilling fluid flow. On the other hand, the drill bit can generate a large amount of heat in the drilling process, and when the temperature exceeds 775 ℃, the structure of the cutting teeth on the drill bit can be rapidly decayed, so that the abrasion is increased; therefore, the other function of the nozzle jet flow of the drill bit is to scour the working surface of the cutting teeth, take away heat generated by rock breaking in time and protect the drill bit.

A nozzle in the existing drill bit can only spray one water flow, has small impact force on the stratum and is not beneficial to purification at the bottom of a well, so the nozzle of the petroleum drilling drill bit is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a drill nozzle for oil drilling.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil drilling drill bit nozzle, is including setting up the runner in the drill bit body, the welding has solid fixed ring in the runner, and the nozzle is installed on the top of runner, the one end of nozzle sets up to the step, the outer wall joint of step is on solid fixed ring, and the inner wall butt of step has fixed pipe, form the annular chamber between the outer wall of fixed pipe and the inner wall of nozzle, two inlet openings have been seted up to fixed pipe near the one end of step, the other end of fixed pipe and nozzle is connected with the closing plate, two hole for water jets have been seted up to the symmetry on the closing plate, and two hole for water jets communicate with each other with the annular chamber, and the clamping ring is supported to the tip of runner, supports one side edge counterbalance of clamping ring and closing plate.

Preferably, the inner wall of the nozzle is equidistantly welded with four supporting blocks, and the four supporting blocks are abutted to the outer wall of the fixed pipe.

Preferably, one end of the fixed pipe is connected with a sealing ring, one side of the sealing plate is provided with an annular groove, the sealing ring is inserted into the annular groove, a sealing ring is arranged in the annular groove, and the sealing ring is abutted to the sealing ring.

Preferably, the end part of the flow channel is positioned on the drill bit body and provided with a pressing groove, the pressing ring is clamped in the pressing groove, and the pressing ring is in threaded connection with the drill bit body through a bolt.

Preferably, the head of the bolt is embedded inside the pressing ring.

Preferably, the inner diameter of the pressing ring is smaller than the diameter of the sealing plate, and the two water spray holes are located on one side of the inner wall of the pressing ring.

The utility model has the advantages that:

1. water in the flow channel of the drill bit body enters the fixed pipe, then enters the annular cavity from the water inlet hole, and finally is sprayed out from the two water spraying holes to respectively spray two water flows, so that the impact force on the stratum is improved, and the purification at the bottom of the well is facilitated.

2. Through pegging graft the sealing ring in the ring channel to make sealing ring and sealing ring offset, be favorable to improving the leakproofness between sealing ring and the fixed pipe, offset with the closing plate through the support clamp ring of installation, make the nozzle fixed then, reinforcing stability improves structural strength, the effectual life who improves the nozzle.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of a drill nozzle for oil drilling according to the present invention.

Fig. 2 is the utility model provides a fixed pipe of oil drilling drill bit nozzle installs at the inside local structure sketch map of left side of nozzle.

Fig. 3 is an enlarged schematic structural diagram of a point a in fig. 1 of the oil drilling bit nozzle according to the present invention.

Fig. 4 is an enlarged schematic structural diagram of a portion B in fig. 1 of the oil drilling bit nozzle according to the present invention.

In the figure: 1. a drill bit body; 2. a flow channel; 3. a fixing ring; 4. a water inlet hole; 5. a nozzle; 6. a support block; 7. pressing the ring; 8. a water spray hole; 9. a sealing plate; 10. an annular cavity; 11. a fixed tube; 12. a step; 13. a bolt; 14. an annular groove; 15. a seal ring; 16. and (4) a sealing ring.

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.

Embodiment 1, referring to fig. 1 to 4, an oil drilling bit nozzle includes a flow channel 2 disposed in a bit body 1, a fixing ring 3 is welded in the flow channel 2, a nozzle 5 is installed at the top end of the flow channel 2, one end of the nozzle 5 is set to be a step 12, the outer wall of the step 12 is clamped on the fixing ring 3 to limit the nozzle 5, a fixing pipe 11 is abutted against the inner wall of the step 12, a ring cavity 10 is formed between the outer wall of the fixing pipe 11 and the inner wall of the nozzle 5, two water inlet holes 4 are disposed at one end of the fixing pipe 11 close to the step 12, a sealing plate 9 is connected to the other end of the fixing pipe 11 and the nozzle 5, two water spray holes 8 are symmetrically disposed on the sealing plate 9, the two water spray holes 8 are communicated with the ring cavity 10 to form two water flows, a pressure ring 7 is installed at the end of the flow channel 2, the pressure ring 7 is abutted against one side edge of the sealing plate 9, the inner diameter of the pressing ring 7 is smaller than that of the sealing plate 9, and the two water spray holes 8 are located on one side of the inner wall of the pressing ring 7.

The water in the flow channel 2 enters the fixed pipe 11, then enters the annular cavity 10 from the water inlet 4, and finally is sprayed out from the two water spray holes 8 to respectively spray two water flows, so that the impact force on the stratum is improved, and the purification at the bottom of the well is facilitated.

Embodiment 2, this embodiment is optimized on the basis of embodiment 1, and specifically includes:

the inner wall of the nozzle 5 is equidistantly welded with four supporting blocks 6, and the four supporting blocks 6 are abutted against the outer wall of the fixed pipe 11 to stably support the fixed pipe 11.

Embodiment 3, this embodiment is optimized on the basis of embodiment 1, and specifically includes:

one end of the fixed pipe 11 is connected with a sealing ring 16, one side of the sealing plate 9 is provided with an annular groove 14, the sealing ring 16 is inserted into the annular groove 14, a sealing ring 15 is arranged in the annular groove 14, and the sealing ring 16 is abutted against the sealing ring 16.

By inserting the sealing ring 16 into the annular groove 14 and pressing the sealing ring 16 against the sealing ring 16, the sealing performance between the sealing ring 16 and the fixed pipe 11 is improved.

Embodiment 4, this embodiment is optimized on the basis of embodiment 1, and specifically includes:

the end of the runner 2 is positioned on the drill bit body 1 and provided with a pressure resisting groove, the pressure resisting ring 7 is clamped in the pressure resisting groove, the pressure resisting ring 7 is in threaded connection with the drill bit body 1 through a bolt 13, the head of the bolt 13 is embedded into the pressure resisting ring 7, and the head of the bolt 13 is prevented from being damaged.

The pressing ring 7 is abutted against the sealing plate 9, so that the nozzle 5 is fixed, the stability is enhanced, the structural strength is improved, and the service life of the nozzle 5 is effectively prolonged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The oil drilling drill nozzle comprises a flow channel (2) arranged in a drill body (1), and is characterized in that a fixing ring (3) is welded in the flow channel (2), a nozzle (5) is installed at the top end of the flow channel (2), one end of the nozzle (5) is arranged to be a step (12), the outer wall of the step (12) is clamped on the fixing ring (3), the inner wall of the step (12) is abutted to a fixing pipe (11), an annular cavity (10) is formed between the outer wall of the fixing pipe (11) and the inner wall of the nozzle (5), one end, close to the step (12), of the fixing pipe (11) is provided with two water inlet holes (4), the other ends of the fixing pipe (11) and the nozzle (5) are connected with a sealing plate (9), two water spray holes (8) are symmetrically formed in the sealing plate (9), and the two water spray holes (8) are communicated with the annular cavity (10), the end part of the flow channel (2) is provided with a pressing ring (7), and the pressing ring (7) is pressed against one side edge of the sealing plate (9).

2. The oil drilling bit nozzle according to claim 1, characterized in that four support blocks (6) are welded to the inner wall of the nozzle (5) at equal intervals, the four support blocks (6) abutting against the outer wall of the fixed tube (11).

3. The oil drilling bit nozzle as claimed in claim 1, characterized in that one end of the fixed tube (11) is connected with a sealing ring (16), one side of the sealing plate (9) is provided with an annular groove (14), the sealing ring (16) is inserted into the annular groove (14), a sealing ring (15) is arranged in the annular groove (14), and the sealing ring (16) abuts against the sealing ring (16).

4. The oil drilling drill bit nozzle as claimed in claim 1, wherein the end of the flow channel (2) is located on the drill bit body (1) and provided with a pressing groove, the pressing ring (7) is clamped in the pressing groove, and the pressing ring (7) is in threaded connection with the drill bit body (1) through a bolt (13).

5. Oil drilling bit nozzle according to claim 4, characterized in that the head of the bolt (13) is embedded inside the pressure ring (7).

6. The oil drilling bit nozzle according to claim 1, characterized in that the inner diameter of the pressing ring (7) is smaller than the diameter of the sealing plate (9), and the two water jet holes (8) are located on the inner wall side of the pressing ring (7).