CN221920861U - Petroleum drill pipe joint - Google Patents

Abstract

The utility model discloses an oil drill rod joint which comprises a fixed rod, a first flange, a second flange, a drill rod, a connecting and fixing assembly and a reinforcing assembly, wherein the first flange is fixedly arranged at the bottom end of the fixed rod, the second flange is arranged at the bottom of the first flange, the drill rod is fixedly arranged at the bottom of the second flange, and the connecting and fixing assembly is arranged on the first flange and the second flange. The intelligent nut has the advantages that the design is reasonable, the practicability is good, the second flange and the first flange can be conveniently and quickly aligned, the connecting bolts are utilized for connection and fixation, the intelligent nut can give out fault alarms at the first time when the second nut rotates, the occurrence probability of accidents is reduced, the working efficiency and the safety of petroleum drilling work are improved, the connection of the fixed rod and the drill rod can be reinforced and supported, the internal parts are effectively protected, and the service life of the parts is prolonged.

Description

A petroleum drill pipe joint

Technical Field

The utility model relates to the technical field of oil exploitation, in particular to an oil drill pipe joint.

Background Art

In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well, and then rise from the bottom of the well to the wellhead. This is the driving mode of oil extraction. In the process, the oil drill pipe is needed to transport the drilling mud to the drill bit, and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe is a steel pipe with a thread at the tail, and a joint device is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling well. When the existing oil drill pipe joint device is used, it is necessary to connect the drill pipes of different thicknesses of the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling well, so different joint devices need to be replaced. It cannot be used to install drill pipes of different specifications, which wastes a lot of manpower and material resources during installation, and the installation is not firm enough. Since the drill pipe must be able to withstand huge internal and external pressure, distortion, bending and vibration, it is easy to be damaged if it is not firmly installed.

In response to the above problem, a petroleum drill pipe joint device is disclosed in Chinese patent announcement No. CN217439983U, the technical points of which are: comprising an installation drill pipe, a fixed rod and tightening strips arranged at equal distances, the right end of the installation drill pipe is in contact with the left end of the fixed rod, the right end of each tightening strip is fixedly connected to the outer surface of the fixed rod, the left ends of several tightening strips are fixedly connected to a tightening ring, and the outer surface of the tightening ring is fixedly connected to two fixing blocks.

The above scheme is found to still have at least the following defects in actual operation: in actual use, when installing the oil drill pipe, the tightening strip will cause an obstruction on the outside of the connection between the two flanges, and electric installation tools cannot be used at all. Installation is performed using tools such as wrenches. Due to the obstruction of the tightening strip, the bolts and nuts at the flange connection can only be tightened with a small amplitude through the interval between the tightening strips, which is very inconvenient and not conducive to the rapid assembly and disassembly of the oil drill pipe. For this reason, we propose an oil drill pipe joint to solve the above problems.

Utility Model Content

1. Technical issues to be resolved

In view of the deficiencies in the prior art, the utility model provides an oil drill pipe joint, which solves the problem that when installing the oil drill pipe, the tightening strip will cause an obstruction on the outside of the connection between the two flanges, and electric installation tools cannot be used at all. Installation is performed using tools such as wrenches. Due to the obstruction of the tightening strip, the bolts and nuts at the flange connection can only be tightened with a small amplitude through the intervals between the tightening strips, which is very inconvenient and not conducive to the rapid assembly and disassembly of the oil drill pipe.

(II) Technical solution

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a petroleum drill pipe joint, comprising a fixing rod, a first flange, a second flange, a drill pipe, a connection and fixing assembly and a reinforcement assembly, wherein the first flange is fixedly mounted on the bottom end of the fixing rod, the second flange is arranged at the bottom of the first flange, the drill pipe is fixedly mounted at the bottom of the second flange, the connection and fixing assembly is arranged on the first flange and the second flange, the connection and fixing assembly is used to connect and fix the first flange and the second flange, the reinforcement assembly is arranged on the fixing rod and the drill pipe, and the reinforcement assembly is used to connect and reinforce the fixing rod and the drill pipe.

Preferably, the connecting and fixing assembly includes a plurality of connecting bolts, a plurality of spring washers, a plurality of first nuts and a plurality of second nuts. The first flange and the second flange are each provided with a plurality of connecting holes distributed in a circular array. The plurality of connecting bolts are respectively slidably installed in the corresponding two connecting holes. The bottom ends of the plurality of connecting bolts extend to the bottom of the second flange. The plurality of spring washers are respectively slidably installed at the bottom ends of the corresponding connecting bolts and are located below the second flange. The plurality of first nuts are respectively threadedly installed on the corresponding connecting bolts and are respectively in close contact with the corresponding spring washers. The plurality of second nuts are respectively threadedly installed on the corresponding connecting bolts and are respectively in close contact with the corresponding first nuts.

Preferably, the bottom ends of the plurality of connecting bolts are all threadedly mounted with smart nuts located below the second nuts.

Preferably, a plurality of screw buckle grooves distributed in a circular array are formed at the bottom of the first flange, a plurality of screw buckles distributed in a circular array are fixedly mounted on the top of the second flange, and the plurality of screw buckles are slidably mounted in corresponding screw buckle grooves respectively.

Preferably, the reinforcement assembly includes two fixed blocks, two arc blocks and two tightening rings. The two fixed blocks are respectively fixedly mounted on the fixed rod and the drill rod and are symmetrically distributed. The two arc blocks are respectively slidably mounted on the two fixed blocks. The two arc blocks fit together to form an elliptical spherical hollow structure. The tops and bottoms of the two arc blocks are both provided with external threads. The two tightening rings are respectively threadedly mounted on the tops and bottoms of the two arc blocks.

Preferably, connecting blocks are fixedly installed on the left and right sides of the two fixed blocks, and connecting grooves are opened on the sides of the two arc blocks close to each other, and the two connecting blocks are slidably installed in the corresponding connecting grooves respectively.

Preferably, the two arc-shaped blocks are both made of high-quality stainless steel and have smooth surfaces.

(III) Beneficial effects

The utility model provides a petroleum drill pipe joint, which has the following beneficial effects:

(1) This oil drill pipe joint can conveniently and quickly align the second flange with the first flange by using a connection and fixing assembly composed of a plurality of connection bolts, a plurality of spring washers, a plurality of first nuts and a plurality of second nuts, and connect and fix them by using the connection bolts. In addition, when the second nut rotates, the smart nut can immediately issue a fault alarm, thereby reducing the probability of accidents and improving the work efficiency and safety of oil drilling work.

(2) This oil drill pipe joint can reinforce and support the connection between the fixed rod and the drill pipe, and effectively protect the internal parts, thereby extending the service life of the parts, by utilizing a reinforcement component composed of two fixed blocks, two arc blocks and two tightening rings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

FIG2 is a schematic diagram of a cross-sectional structure of the utility model from the front view;

FIG. 3 is an enlarged schematic diagram of part A in FIG. 2 .

In the figure: 1. fixing rod; 2. first flange; 3. second flange; 4. drill rod; 5. connecting hole; 6. connecting bolt; 7. spring washer; 8. first nut; 9. second nut; 10. smart nut; 11. turnbuckle groove; 12. turnbuckle; 13. fixing block; 14. arc block; 15. tightening ring; 16. connecting block; 17. connecting groove.

DETAILED DESCRIPTION

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

As shown in Figures 1-3, the utility model provides a technical solution: a petroleum drill pipe joint, comprising a fixing rod 1, a first flange 2, a second flange 3, a drill pipe 4, a connecting and fixing assembly and a reinforcing assembly, wherein the first flange 2 is fixedly mounted on the bottom end of the fixing rod 1, the second flange 3 is arranged at the bottom of the first flange 2, the drill pipe 4 is fixedly mounted at the bottom of the second flange 3, the connecting and fixing assembly is arranged on the first flange 2 and the second flange 3, the connecting and fixing assembly is used to connect and fix the first flange 2 and the second flange 3, the reinforcing assembly is arranged on the fixing rod 1 and the drill pipe 4, the reinforcing assembly is used to connect and reinforce the fixing rod 1 and the drill pipe 4, the above-mentioned reinforcing assembly comprises two fixing blocks 13, two arc blocks 14 and two tightening rings 15, the two fixing blocks 13 are respectively fixedly mounted on the fixing rod 1 and the drill pipe 4 and are symmetrically distributed, and the two arc blocks 14 are respectively slidably mounted on the two fixing blocks 13, two arc blocks 14 fit together to form an elliptical hollow structure. Both arc blocks 14 are made of high-quality stainless steel and have a smooth surface. By utilizing the smooth surface, friction can be reduced, which facilitates drilling work. The two arc blocks 14 are used to effectively protect internal parts such as the first flange 2, the second flange 3, and multiple connecting bolts 6, thereby extending the service life of the parts. The tops and bottoms of the two arc blocks 14 are provided with external threads, and two tightening rings 15 are respectively threadedly installed on the tops and bottoms of the two arc blocks 14. Connecting blocks 16 are fixedly installed on the left and right sides of the two fixed blocks 13. Connecting grooves 17 are provided on the sides of the two arc blocks 14 that are close to each other. The two connecting blocks 16 are respectively slidably installed in the corresponding connecting grooves 17. Through the joint action of the connecting blocks 16 and the connecting grooves 17, the two arc blocks 14 can be conveniently slidably installed on the two fixed blocks 13.

In this embodiment, the above-mentioned connection and fixing components include multiple connecting bolts 6, multiple spring washers 7, multiple first nuts 8 and multiple second nuts 9. The first flange 2 and the second flange 3 are each provided with a plurality of connecting holes 5 distributed in a circular array. The multiple connecting bolts 6 are respectively slidably installed in the corresponding two connecting holes 5. The bottom ends of the multiple connecting bolts 6 extend to the bottom of the second flange 3. The multiple spring washers 7 are respectively slidably installed at the bottom ends of the corresponding connecting bolts 6 and are located below the second flange 3. The multiple spring washers 7 can push the multiple first nuts 8 to be in close contact with the corresponding second nuts 9, thereby improving the stability of the multiple first nuts 8 and the corresponding second nuts 9. The multiple first nuts 8 are respectively threadedly installed on the corresponding connecting bolts 6 and are respectively in close contact with the corresponding spring washers. The multiple second nuts 9 are respectively threadedly installed on the corresponding connecting bolts 6 and are respectively in close contact with the corresponding spring washers. The second flange 3 is provided with a plurality of turnbuckle grooves 11 arranged in an annular array, and a plurality of turnbuckles 12 arranged in an annular array are fixedly installed on the top of the second flange 3. The plurality of turnbuckles 12 are respectively slidably installed in the corresponding turnbuckle grooves 11. By utilizing the joint action of the turnbuckle grooves 11 and the turnbuckles 12, the first flange 2 and the second flange 3 can be conveniently and quickly aligned and connected, so that the corresponding two connecting holes 5 are aligned, and the connecting bolts 6 are conveniently installed to improve work efficiency. The bottom ends of the plurality of connecting bolts 6 are all threadedly installed with a smart nut 10 located below the second nut 9. The smart nut 10 is used to promptly issue a fault alarm when the second nut 9 rotates or loosens, thereby reducing the probability of accidents and improving the work efficiency and safety of oil drilling.

Through the above structure, the oil drill pipe joint provided by the utility model can conveniently and quickly align the second flange 3 with the first flange 2, and use the connecting bolts 6 to connect and fix them. When the second nut 9 rotates, the intelligent nut 10 can issue a fault alarm in the first time, thereby reducing the probability of accidents and improving the work efficiency and safety of oil drilling work. It can also reinforce and support the connection between the fixed rod 1 and the drill pipe 4, and effectively protect the internal parts to extend the service life of the parts. When used specifically, the multiple spin buckles 12 are slidably installed in the corresponding spin buckle grooves 11 respectively, so that the second flange 3 can be connected and fixed to the first flange 2, and the multiple connecting holes 5 can be connected to the corresponding The corresponding connecting holes 5 are aligned to facilitate the installation of multiple connecting bolts 6, and then the spring washers 7, the first nuts 8 and the second nuts 9 are installed on the multiple connecting bolts 6 at one time to quickly complete the connection and fixation of the fixing rod 1 and the drill rod 4, and then the two arc blocks 14 are installed on the two fixing blocks 13, and the two tightening rings 15 are tightened to make the two arc blocks 14 fit each other to form an ellipsoidal sphere, which effectively protects the internal parts and greatly extends the service life of the parts. When a second nut 9 rotates or loosens, the corresponding smart nut 10 will promptly issue a fault alarm to notify the maintenance personnel to carry out maintenance in time to avoid accidents and improve the work efficiency and safety of oil drilling.

The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims (7)

1. A petroleum drill pipe joint, characterized in that it comprises a fixing rod (1), a first flange (2), a second flange (3), a drill pipe (4), a connecting and fixing assembly and a reinforcing assembly, wherein the first flange (2) is fixedly mounted on the bottom end of the fixing rod (1), the second flange (3) is arranged at the bottom of the first flange (2), the drill pipe (4) is fixedly mounted at the bottom of the second flange (3), the connecting and fixing assembly is arranged on the first flange (2) and the second flange (3), and the connecting and fixing assembly is used to connect and fix the first flange (2) and the second flange (3), and the reinforcing assembly is arranged on the fixing rod (1) and the drill pipe (4), and the reinforcing assembly is used to connect and reinforce the fixing rod (1) and the drill pipe (4). 2. A petroleum drill pipe joint according to claim 1, characterized in that: the connecting and fixing assembly comprises a plurality of connecting bolts (6), a plurality of spring washers (7), a plurality of first nuts (8) and a plurality of second nuts (9); the first flange (2) and the second flange (3) are each provided with a plurality of connecting holes (5) distributed in a ring array; the plurality of connecting bolts (6) are respectively slidably mounted in the corresponding two connecting holes (5); the bottom ends of the plurality of connecting bolts (6) extend below the second flange (3); the plurality of spring washers (7) are respectively slidably mounted on the bottom ends of the corresponding connecting bolts (6) and are located below the second flange (3); the plurality of first nuts (8) are respectively threadedly mounted on the corresponding connecting bolts (6) and are respectively in close contact with the corresponding spring washers; the plurality of second nuts (9) are respectively threadedly mounted on the corresponding connecting bolts (6) and are respectively in close contact with the corresponding first nuts (8). 3. A petroleum drill pipe joint according to claim 2, characterized in that: the bottom ends of the plurality of connecting bolts (6) are all threadedly mounted with smart nuts (10) located below the second nuts (9). 4. A petroleum drill pipe joint according to claim 2, characterized in that: a plurality of screw grooves (11) distributed in an annular array are formed at the bottom of the first flange (2), a plurality of screw buckles (12) distributed in an annular array are fixedly mounted on the top of the second flange (3), and the plurality of screw buckles (12) are slidably mounted in the corresponding screw buckle grooves (11) respectively. 5. A petroleum drill pipe joint according to claim 1, characterized in that: the reinforcement component comprises two fixed blocks (13), two arc blocks (14) and two tightening rings (15), the two fixed blocks (13) are respectively fixedly mounted on the fixed rod (1) and the drill rod (4) and are symmetrically distributed, the two arc blocks (14) are respectively slidably mounted on the two fixed blocks (13), the two arc blocks (14) fit together to form an elliptical hollow structure, the tops and bottoms of the two arc blocks (14) are both provided with external threads, and the two tightening rings (15) are respectively threadedly mounted on the tops and bottoms of the two arc blocks (14). 6. A petroleum drill pipe joint according to claim 5, characterized in that: connecting blocks (16) are fixedly installed on the left and right sides of the two fixed blocks (13), and connecting grooves (17) are opened on the sides of the two arc blocks (14) close to each other, and the two connecting blocks (16) are respectively slidably installed in the corresponding connecting grooves (17). 7. A petroleum drill pipe joint according to claim 6, characterized in that the two arc-shaped blocks (14) are both made of high-quality stainless steel and have smooth surfaces.