Oil and gas well drilling bit with chip removal and flow guide structure

Abstract

The invention relates to the technical field of oil and gas well drilling bits, and discloses an oil and gas well drilling bit with a chip removal and flow guide structure, the oil and gas well drilling bit comprises an equipment assembly, a supporting assembly, a connecting assembly and a flow guide assembly, the equipment assembly comprises a mounting seat, and a bit main body is arranged above the mounting seat; and three groups of main blades are sleeved and fixed outside the drill bit main body at equal intervals. According to the oil and gas well drilling bit with the chip removal and flow guide structure, by arranging the guide plate, the flow guide wire, the external connection base, the fastening bolt, the fixing frame and the water hole, detachable replacement is achieved, the situation that the water hole is blocked due to damage of the flow guide wire after long-term use is avoided, chip removal is convenient through the characteristic that the guide plate inclines downwards, and the flow rate of the water hole is ensured; the problems that a flow guide wire is fixedly installed in a drill bit, the flow guide wire is damaged due to firmness of rock debris after long-term use and cannot be detached and replaced, the service life of the whole drill bit is affected, and meanwhile the water hole passing rate is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling bit technology, specifically to an oil and gas drilling bit with a chip removal and flow guiding structure. Background Technology

[0002] Oil and gas drilling bits are the most crucial rock-breaking tools in drilling operations. Their main function is to break rocks and form wellbores, opening up channels for the exploration and development of oil and gas resources. Through rotational motion, combined with mechanical actions such as impact, crushing, and shearing, the drill bit breaks underground rock formations into rock fragments. At the same time, in conjunction with the drilling fluid circulation system, the rock cuttings are carried to the surface, thereby achieving continuous extension of the wellbore.

[0003] The performance of drill bits directly affects drilling efficiency, cost, and safety. Current oil and gas drilling bits use guide wires for cuttings removal and flow to ensure that the water holes do not become clogged. However, the guide wires are fixedly installed in the drill bit. After long-term use, the hardness of the rock fragments can damage the guide wires, making them impossible to remove and replace, which affects the overall service life of the drill bit and reduces the water hole throughput.

[0004] Therefore, a novel oil and gas drilling bit with a chip removal and flow guiding structure is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an oil and gas drilling bit with a chip removal and flow guiding structure to solve the problem mentioned in the background art, where the guide wire is fixedly installed in the drill bit, and after long-term use, the strong force of rock debris damages the guide wire, making it impossible to disassemble and replace, which affects the overall service life of the drill bit and reduces the water flow rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil and gas drilling bit with a chip removal and flow guiding structure, comprising an equipment component, a support component, a connecting component, and a flow guiding component. The equipment component includes a mounting base, and a drill bit body is disposed above the mounting base. Three sets of main blades are sleeved and fixed at equal intervals on the outside of the drill bit body, and three sets of secondary blades are sleeved and fixed at equal intervals on the outside of the drill bit body. The support component includes a base, and the base is fixedly connected to the top of the mounting base. The connecting component is disposed between the support component and the drill bit body.

[0007] The guiding flow assembly includes a guide plate. Three sets of water holes are opened through the top of the drill bit body, and the outer ends of the water holes extend outward. Multiple sets of guide plates are provided and are evenly distributed and fixedly connected to the inner wall of the water holes. The outer ends of the guide plates are inclined downward. An external connector is fixedly connected to the inner end of the secondary cutter wing. A guide wire is vertically inserted through the inside of the water hole. The top of the guide wire is bent outward and inserted into the inside of the external connector. A circular sleeve is fixedly fitted at the bent part of the top of the guide wire. A fixing frame is fixedly connected to the top of the circular sleeve.

[0008] As a further technical solution of the present invention, the outer end of the fixing frame is bent downward and penetrates the interior of the outer connector. The inner thread of the outer connector is provided with a fastening bolt. The outer end of the fastening bolt is fixedly connected to a knob, and the other end of the fastening bolt penetrates the interior of the fixing frame.

[0009] As a further technical solution of the present invention, the main blade and the secondary blade are arranged alternately at equal intervals, and the inner ends of the top of the three sets of main blades are fixedly connected.

[0010] As a further technical solution of the present invention, several sets of cutting teeth are provided through the exterior of both the main blade and the secondary blade.

[0011] As a further technical solution of the present invention, a fixed seat is vertically fixedly connected to the center of the base, and multiple sets of internal connecting plates are fixedly connected at equal intervals to the inner wall of the base.

[0012] As a further technical solution of the present invention, multiple sets of support plates are fixedly connected at equal intervals to the outer end of the fixed base. Each support plate corresponds to an inner plate, and the support plate is fixedly connected to the bottom end of the inner plate. Each port of the support plate is fixedly connected to a limit frame, and the outer end of the limit frame is sleeved and fixed to the outside of the inner plate.

[0013] As a further technical solution of the present invention, a connecting seat is fixedly connected to the top of the base, a top seat is fixedly connected to the bottom of the drill bit body, an outer frame is fixedly connected to the bottom of the top seat, and a limiting seat is fixedly connected to the top of the connecting seat.

[0014] As a further technical solution of the present invention, a limiting circular block is provided through the bottom of both sides of the outer frame, and the limiting circular block is fitted and connected to the inside of both sides of the limiting seat.

[0015] As a further technical solution of the present invention, a mounting sleeve is fixedly connected to the inner wall of the outer frame, and a threaded seat is fixedly connected to the top of the limiting seat.

[0016] As a further technical solution of the present invention, the threads on the surface of the threaded seat match the threads on the inner wall of the mounting sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the oil and gas drilling bit with chip removal and flow guiding structure not only realizes the function of guiding flow and supporting, but also realizes the function of connection;

[0018] (1) By setting up guide plates, guide wires, external bases, fastening bolts, fixing frames and water eyes, the guide wires are vertically inserted into the water eyes. The fixing frames limit the installation inside the external bases, and the fastening bolts are used to move through the internal parts of the external bases and fixing frames to quickly fix the guide wires, so as to achieve disassembly and replacement. This avoids damage to the guide wires after long-term use, which would cause the water eyes to become blocked. It also strengthens the firmness between the guide wires and the secondary blades. Multiple sets of guide plates are added to the inner wall of the water eyes. The downward tilt of the guide plates facilitates chip removal and ensures the flow rate of the water eyes.

[0019] (2) By setting a base, a support plate, an inner plate, a limiting frame and a fixing seat, a fixing seat is added inside the base. Multiple sets of support plates provide strong support for the bottom of the inner plate and strengthen the fixation between the fixing seat and the inner wall of the base, preventing the base from sinking and reducing the strength, and improving the service life of the base. At the same time, the limiting frame is used to fix the outer side of the inner plate, which greatly strengthens the connection between the base and the fixing seat and prevents it from falling off and affecting the use.

[0020] (3) By setting a top seat, a connecting seat, a mounting sleeve, a limiting block and a limiting seat, the connecting seat is inserted into the outer frame. The mounting sleeve and the threaded seat are matched by the thread direction to achieve the fixation between the connecting seat and the threaded seat, which improves the flexibility between the base and the drill body and facilitates disassembly and assembly. At the same time, the limiting structure is used to fit the limiting block into the inside of the limiting seat to ensure the stability between the connecting seat and the threaded seat during the use of the drill body. Attached Figure Description

[0021] Figure 1 This is a frontal cross-sectional view of the present invention.

[0022] Figure 2 This is a top-view schematic diagram of the water eye structure of the present invention;

[0023] Figure 3 This is a front view of the connector structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the outer frame structure of the present invention from a bottom view;

[0025] Figure 5 This is a front view schematic diagram of the guide wire structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the base structure from below.

[0027] In the diagram: 1. Equipment component; 101. Mounting base; 102. Drill bit body; 103. Main cutter wing; 104. Cutting teeth; 105. Secondary cutter wing; 2. Support component; 201. Base; 202. Inner plate; 203. Support plate; 204. Limiting frame; 205. Fixing base; 3. Connecting component; 301. Limiting seat; 302. Top seat; 303. Threaded seat; 304. Limiting round block; 305. Outer frame; 306. Connecting seat; 307. Mounting sleeve; 4. Guide flow component; 401. Fixing frame; 402. Outer seat; 403. Fastening bolt; 404. Water eye; 405. Guide plate; 406. Knob; 407. Round sleeve; 408. Guide wire. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-6 An oil and gas drilling bit with a chip removal and flow guiding structure includes an equipment component 1, a support component 2, a connecting component 3, and a flow guiding component 4. The equipment component 1 includes a mounting base 101, and a drill bit body 102 is disposed above the mounting base 101. Three sets of main blades 103 are sleeved and fixed at equal intervals on the outside of the drill bit body 102, and three sets of secondary blades 105 are sleeved and fixed at equal intervals on the outside of the drill bit body 102. The support component 2 includes a base 201, and the base 201 is fixedly connected to the top of the mounting base 101. The connecting component 3 is disposed between the support component 2 and the drill bit body 102.

[0030] The flow guiding assembly 4 includes a guide plate 405. Three sets of water holes 404 are opened through the top of the drill bit body 102, and the outer ends of the water holes 404 extend outward. Multiple sets of guide plates 405 are provided and are evenly distributed and fixedly connected to the inner wall of the water holes 404. The outer ends of the guide plates 405 are inclined downward. The inner end of the secondary blade 105 is fixedly connected to an outer seat 402. A guide wire 408 is vertically inserted through the inside of the water hole 404. The top of the guide wire 408 is bent outward and inserted into the inside of the outer seat 402. A round sleeve 407 is sleeved and fixed at the bent part of the top of the guide wire 408. A fixing bracket 401 is fixedly connected to the top of the round sleeve 407.

[0031] The outer end of the fixing bracket 401 bends downward and passes through the interior of the outer connector 402. The inner thread of the outer connector 402 is provided with a fastening bolt 403. The outer end of the fastening bolt 403 is fixedly connected to a knob 406, and the other end of the fastening bolt 403 passes through the interior of the fixing bracket 401.

[0032] The main blade 103 and the secondary blade 105 are arranged alternately at equal intervals. The inner ends of the top of the three sets of main blades 103 are fixedly connected. Several sets of cutting teeth 104 are provided through the outside of both the main blade 103 and the secondary blade 105.

[0033] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, during use, the outer side of the top of the guide wire 408 is inserted into the corresponding external connector 402, while the fixing bracket 401 extends vertically through the interior of the external connector 402. By using the knob 406, the fastening bolt 403 is moved through the interior of the external connector 402 and the fixing bracket 401 to limit and fix the guide wire 408, enabling it to be disassembled and replaced. Multiple sets of guide plates 405 are added to the inner wall of the water eye 404. The downward tilt of the guide plate 405 facilitates chip removal and ensures the flow rate of the water eye 404.

[0034] A fixed seat 205 is vertically fixedly connected to the center of the base 201, and multiple sets of internal connecting plates 202 are fixedly connected at equal intervals to the inner wall of the base 201.

[0035] Multiple sets of support plates 203 are fixedly connected at equal intervals to the outer end of the fixed base 205. Each support plate 203 corresponds to an inner plate 202, and the support plate 203 is fixedly connected to the bottom end of the inner plate 202. Each end of the support plate 203 is fixedly connected to a limit frame 204, and the outer end of the limit frame 204 is sleeved and fixed to the outside of the inner plate 202.

[0036] Specifically, such as Figure 1 and Figure 6 As shown, when in use, a fixing seat 205 is added inside the base 201. Multiple sets of support plates 203 provide strong support for the bottom of the inner plate 202 and strengthen the fixation between the fixing seat 205 and the inner wall of the base 201, preventing the base 201 from sinking and reducing its strength, and improving the service life of the base 201. At the same time, the limiting bracket 204 is used to fix it to the outside of the inner plate 202, which greatly strengthens the connection between the base 201 and the fixing seat 205 and prevents it from falling off and affecting its use.

[0037] A connecting seat 306 is fixedly connected to the top of the base 201, a top seat 302 is fixedly connected to the bottom of the drill bit body 102, an outer frame 305 is fixedly connected to the bottom of the top seat 302, and a limit seat 301 is fixedly connected to the top of the connecting seat 306.

[0038] Limiting blocks 304 are provided through the bottom of both sides of the outer frame 305, and the limiting blocks 304 are fitted into the inside of both sides of the limiting seat 301;

[0039] An installation sleeve 307 is fixedly connected to the inner wall of the outer frame 305, and a threaded seat 303 is fixedly connected to the top of the limiting seat 301. The threads on the surface of the threaded seat 303 match the threads on the inner wall of the installation sleeve 307.

[0040] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, during use, the connecting seat 306 is inserted into the outer frame 305. The threaded direction of the mounting sleeve 307 and the threaded seat 303 are matched to achieve fixation between the connecting seat 306 and the threaded seat 303, improving the flexibility between the base 201 and the drill body 102 and facilitating disassembly and assembly. At the same time, the limiting structure is used to fit the limiting block 304 into the limiting seat 301 to ensure the stability between the connecting seat 306 and the threaded seat 303 during the use of the drill body 102.

[0041] Working principle: In use, the connecting seat 306 is inserted into the outer frame 305. The threaded direction of the mounting sleeve 307 and the threaded seat 303 are matched to achieve fixation between the connecting seat 306 and the threaded seat 303. A fixing seat 205 is added inside the base 201. Multiple sets of support plates 203 provide strong support for the bottom of the inner plate 202 and strengthen the fixation between the fixing seat 205 and the inner wall of the base 201. The outer side of the top of the guide wire 408 is inserted into the corresponding outer seat 402. At the same time, the fixing bracket 401 vertically penetrates the interior of the outer seat 402. The fastening bolt 403 is moved through the interior of the outer seat 402 and the fixing bracket 401 by the knob 406 to limit and fix the guide wire 408, so as to achieve detachable replacement. Multiple sets of guide plates 405 are added to the inner wall of the water eye 404. The downward tilt of the guide plate 405 facilitates chip removal and ensures the flow rate of the water eye 404.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oil and gas drilling bit with a chip evacuation flow guiding structure, comprising a device assembly (1), a support assembly (2), a connection assembly (3) and a flow guiding assembly (4), characterized in that: The device assembly (1) comprises a mounting seat (101), a drill bit body (102) is arranged above the mounting seat (101), three groups of main blades (103) are fixedly connected to the outer part of the drill bit body (102) at equal intervals, three groups of auxiliary blades (105) are fixedly connected to the outer part of the drill bit body (102) at equal intervals, the supporting assembly (2) comprises a base (201), and the base (201) is fixedly connected to the top end of the mounting seat (101), and the connecting assembly (3) is arranged between the supporting assembly (2) and the drill bit body (102). The guiding flow assembly (4) comprises a guide plate (405), three groups of water eyes (404) are arranged through the top of the drill bit body (102), and the outer ends of the water eyes (404) extend outward, the guide plate (405) is provided in multiple groups and is fixedly connected to the inner walls of the water eyes (404) in a uniform distribution manner, the outer end of the guide plate (405) is inclined downward, the inner end of the auxiliary blade (105) is fixedly connected with an external connecting seat (402), the inside of the water eye (404) is vertically provided with a flow guide wire (408), the top of the flow guide wire (408) is bent outward and inserted into the inside of the external connecting seat (402), the bent part of the top of the flow guide wire (408) is fixedly connected with a round sleeve (407), and the top end of the round sleeve (407) is fixedly connected with a fixing frame (401).

2. The oil and gas drilling bit with the chip evacuation guide structure according to claim 1, characterized in that: The outer end of the fixing frame (401) is bent downward and penetrates the inside of the external connecting seat (402), the inside of the external connecting seat (402) is provided with a fastening bolt (403) in a threaded penetrating manner, the outer end of the fastening bolt (403) is fixedly connected with a knob (406), and the other end of the fastening bolt (403) penetrates the inside of the fixing frame (401).

3. The oil and gas drilling bit with the chip evacuation guide structure of claim 1, wherein: The main blades (103) and the auxiliary blades (105) are arranged at equal intervals and staggered, and the inner ends of the tops of the three groups of main blades (103) are fixedly connected.

4. The oil and gas drilling bit with a chip evacuation flow guiding structure of claim 1, wherein: The outer parts of the main blades (103) and the auxiliary blades (105) are provided with a plurality of cutting teeth (104) in a penetrating manner.

5. The oil and gas drilling bit with chip evacuation and flow guiding structure of claim 1, wherein: The inside of the base (201) is vertically fixedly connected with a fixing seat (205) at the center, and the inner wall of the base (201) is fixedly connected with a plurality of inner connecting plates (202) at equal intervals.

6. The oil and gas drilling bit having a chip evacuation flow guiding structure according to claim 5, characterized in that: The outer end of the fixing seat (205) is fixedly connected with a plurality of supporting plates (203) at equal intervals, the supporting plates (203) correspond to the inner connecting plates (202) one by one, the supporting plates (203) are fixedly connected to the bottom end of the inner connecting plates (202), and the ports of the supporting plates (203) are fixedly connected with limiting frames (204), and the outer end of the limiting frame (204) is fixedly connected to the outside of the inner connecting plate (202).

7. The oil and gas drilling bit with chip evacuation and flow guiding structure of claim 1, wherein: The top end of the base (201) is fixedly connected with a connecting seat (306), the bottom end of the drill bit body (102) is fixedly connected with a top seat (302), the bottom end of the top seat (302) is fixedly connected with an outer frame (305), and the top end of the connecting seat (306) is fixedly connected with a limiting seat (301).

8. The oil and gas drilling bit having a chip evacuation flow guiding structure according to claim 7, characterized in that: The bottom of both sides of the outer frame (305) is provided with a limiting round block (304) which is embeddedly connected to the inside of both sides of the limiting seat (301).

9. The oil and gas drilling bit having a chip evacuation flow guiding structure according to claim 7, characterized in that: The inner wall of the outer frame (305) is fixedly connected with a mounting sleeve (307), and the top end of the limiting seat (301) is fixedly connected with a threaded seat (303).

10. The oil and gas drilling bit having a chip evacuation flow guiding structure of claim 9, wherein: The thread on the surface of the threaded seat (303) is consistent with the thread on the inner wall of the mounting sleeve (307).

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