CN111997534A

CN111997534A - Petroleum drill pipe

Info

Publication number: CN111997534A
Application number: CN202010888287.1A
Authority: CN
Inventors: 李宛芸; 杨丹
Original assignee: Individual
Current assignee: Shenzhen Atela Energy Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-11-27
Anticipated expiration: 2040-08-28
Also published as: CN111997534B

Abstract

The invention relates to the technical field of oil drill pipes, in particular to an oil drill pipe, which comprises a drill bit, wherein a pressing mechanism is arranged outside the upper surface of the drill bit, an installation mechanism is arranged at the center of the upper surface of the drill bit, a sliding mechanism is arranged at the upper end of the installation mechanism, a fixing mechanism is arranged on the surface of the installation mechanism, a clamping mechanism is arranged inside the fixing mechanism, a pressing cylinder arranged by rotation is driven by a first threaded surface and a second threaded surface to drive a first conical surface on the pressing cylinder to extrude a pressing inclined surface on a pushing plate, so as to drive the pushing plate to approach to a first drill pipe, further to drive a fixing clamping block to pass through a through hole to be clamped inside a fixing clamping groove, further to fix the first drill pipe and the drill bit by the fixing clamping block, then to pass through a fixing hole to be in threaded connection with the threaded hole, further to fix the drill bit, preventing the drill bit and the first drill rod from disengaging.

Description

Petroleum drill pipe

Technical Field

The invention relates to the technical field of oil drill pipes, in particular to an oil drill pipe.

Background

The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device positioned at the bottom end of a drilling well, the drill rod is used for conveying drilling mud to a drill bit and improving, reducing or rotating the bottom hole device together with the drill bit, the drill rod must be capable of bearing huge internal and external pressure, distortion, bending and vibration, and the drill rod can be used for multiple times in the process of exploiting and refining oil gas.

The lower extreme and the drill bit fixed connection of current oil drill pipe, it rotates to drive the drill bit through the drilling rod when drilling work, but the drill bit can take place the friction with the rock and the earth of ground bottom when rotating, and then the drill bit that makes receives reverse strength, and then lead to bull stick and drill bit to receive opposite strength, can lead to drill bit and drilling rod atress not hard up to lead to droing after the drill bit uses for a long time, and after a plurality of drilling rods are being connected, the junction of drilling rod receives the pressure that drives when rotating, and then can lead to the inside screw thread of drilling rod junction to receive the extrusion, and then probably lead to the screw thread impaired, and then probably make the drilling rod separation of connecting.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an oil drill pipe.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an oil drill pipe, includes the drill bit, the upper surface outside of drill bit is provided with pressing means, the upper surface center department of drill bit is provided with installation mechanism, installation mechanism's upper end is provided with slide mechanism, installation mechanism's the fixed establishment that is provided with on the surface, fixed establishment's inside is provided with clamping mechanism.

Specifically, pressing means includes ring channel, spring groove, first spring, push pedal, presses inclined plane, first conical surface, presses a section of thick bamboo, first helicoid, second helicoid, the ring channel is seted up on the upper surface in the drill bit outside, two spring grooves, two have been seted up to the symmetry on the inner wall of ring channel the first spring of the equal fixedly connected with in inside of spring groove, two the equal fixedly connected with push pedal of the other end of first spring, two all seted up on the push pedal is kept away from one side lateral wall in spring groove and pressed the inclined plane, two press inclined plane and first conical surface in close contact with, first conical surface is seted up on the lower extreme inner wall of pressing a section of thick bamboo, first helicoid has been seted up on the outer wall of pressing a section of thick bamboo, first helicoid and second helicoid threaded connection, the second helicoid is seted up on the lateral wall of ring channel.

Specifically, the mounting mechanism comprises a slot, a second conical surface, a first drill rod, a fixed clamping groove, a fixed clamping block, a through hole, a threaded hole, a bolt and a fixed hole, the slot is arranged at the center of the upper surface of the drill bit, the opening of the slot is provided with a second conical surface, a first drill rod is inserted in the slot, two fixed clamping grooves are symmetrically formed in the surface of the first drill rod, fixed clamping blocks are clamped in the two fixed clamping grooves, the fixed clamping block is inserted in the through hole, the through hole is arranged on the inner wall of the slot, the other end of the through hole is communicated with the annular groove, two threaded holes are symmetrically formed in the outer wall of the first drill rod, bolts are connected to the inner portions of the threaded holes in a threaded mode, the bolts are respectively inserted into the two fixing holes, and the fixing holes are formed in the outer wall of the pressing barrel.

Specifically, slide mechanism includes second drilling rod, spout, slider, a removal section of thick bamboo, third screw thread, the joint of second drilling rod is in the upper end of first drilling rod, two spouts have been seted up to the symmetry on the outer wall of second drilling rod, the inside sliding connection of spout has two assorted sliders, two slider fixed connection is on the inner wall of same removal section of thick bamboo, the third flank of thread has been seted up on the lower extreme outer wall of a removal section of thick bamboo.

Specifically, fixed establishment is including solid fixed ring, annular, joint ring, rotary drum, fourth flank of thread, the fixed ring is fixed to be cup jointed on the outer wall of first drilling rod, the annular has been seted up on solid fixed ring's the outer wall, the inside joint of annular has the joint ring, fixed cover has been cup jointed the rotary drum on the outer wall of joint ring, the fourth flank of thread has been seted up on the upper end inner wall of rotary drum.

Specifically, the clamping mechanism includes jack, inserted bar, joint groove, fixed block, circular slot, second spring, two the jack symmetry is seted up on solid fixed ring's lower surface, two the inserted bar has all been pegged graft in the inside of jack, two the upper end of inserted bar is pegged graft respectively in two joint inslots, two the lower extreme at the removal section of thick bamboo is seted up to joint groove symmetry, two the two fixed blocks of symmetrical fixedly connected with on the surface of inserted bar, two the fixed block joint is inside two circular slots respectively, the circular slot is seted up on the inner wall of jack, the second spring has been cup jointed in the activity on the surface to the one end that the inserted bar is located circular slot inside, the upper end and the fixed block fixed connection of second spring.

Specifically, one end, far away from the first drill rod, of the fixed clamping block is fixedly connected with the push plate.

Specifically, the lower end of the inserted bar extends to the outside of the lower end of the insertion hole.

The invention has the beneficial effects that:

(1) according to the oil drill rod, the press cylinder is rotated, the first conical surface on the press cylinder is driven by the first threaded surface and the second threaded surface to extrude the pressing inclined surface on the push plate, the push plate is driven to approach the first drill rod, the fixing clamping block is pushed to penetrate through the through hole to be clamped in the fixing clamping groove, the first drill rod and the drill bit are fixed through the fixing clamping block, then the bolt penetrates through the fixing hole to be in threaded connection with the threaded hole, the drill bit and the first drill rod are fixed through the bolt and the fixing clamping block, connection between the drill bit and the first drill rod is effectively prevented from being loosened, and the drill bit and the first drill rod are prevented from being separated.

(2) According to the oil drill rod, the rotating drum is rotated to drive the third threaded surface to be in threaded connection with the fourth threaded surface, the inserted rod is inserted into the clamping groove, when the first drill rod and the second drill rod are subjected to opposite forces, the inserted rod and the rotating drum are subjected to opposite forces, and therefore the connection part of the first drill rod and the second drill rod is prevented from being loosened, and the first drill rod and the second drill rod are prevented from being separated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of an oil drill pipe provided by the present invention;

FIG. 2 is a schematic structural view of a sliding mechanism of an oil drill pipe according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1 of an oil drill pipe provided by the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 2 of an oil drill pipe provided in accordance with the present invention;

FIG. 5 is a top view of an oil drill pipe pressing mechanism provided by the present invention;

FIG. 6 is a schematic structural diagram of a pressing cylinder of an oil drill pipe provided by the invention;

fig. 7 is a schematic structural diagram of a push plate of an oil drill pipe provided by the invention.

In the figure: 1. a drill bit; 2. a pressing mechanism; 21. an annular groove; 22. a spring slot; 23. a first spring; 24. pushing the plate; 25. pressing the inclined plane; 26. a first conical surface; 27. pressing the cylinder; 28. a first thread face; 29. a second thread face; 3. an installation mechanism; 31. a slot; 32. a second tapered surface; 33. a first drill rod; 34. fixing the clamping groove; 35. fixing the fixture block; 36. a through hole; 37. a threaded hole; 38. a bolt; 39. a fixing hole; 4. a sliding mechanism; 41. a second drill pipe; 42. a chute; 43. a slider; 44. moving the drum; 45. a third thread; 5. a fixing mechanism; 51. a fixing ring; 52. a ring groove; 53. a snap ring; 54. a rotating drum; 55. a fourth flank; 6. a clamping mechanism; 61. a jack; 62. inserting a rod; 63. a clamping groove; 64. a fixed block; 65. a circular groove; 66. a second spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the oil drill pipe according to the present invention includes a drill bit 1, a pressing mechanism 2 is disposed outside an upper surface of the drill bit 1, an installation mechanism 3 is disposed at a center of the upper surface of the drill bit 1, a sliding mechanism 4 is disposed at an upper end of the installation mechanism 3, a fixing mechanism 5 is disposed on a surface of the installation mechanism 3, and a clamping mechanism 6 is disposed inside the fixing mechanism 5.

Specifically, the pressing mechanism 2 includes an annular groove 21, a spring groove 22, a first spring 23, a push plate 24, a pressing inclined surface 25, a first conical surface 26, a pressing barrel 27, a first threaded surface 28, and a second threaded surface 29, the annular groove 21 is disposed on the upper surface of the outer side of the drill bit 1, two spring grooves 22 are symmetrically disposed on the inner wall of the annular groove 21, the first springs 23 are fixedly connected inside the two spring grooves 22, the push plate 24 is fixedly connected to the other ends of the two first springs 23, the pressing inclined surface 25 is disposed on the side wall of one side of the two push plates 24 away from the spring groove 22, the two pressing inclined surfaces 25 are in close contact with the first conical surface 26, the first conical surface 26 is disposed on the inner wall of the lower end of the pressing barrel 27, the first threaded surface 28 is disposed on the outer wall of the pressing barrel 27, the first threaded surface 28 is in threaded connection with the second threaded surface 29, the second threaded surface 29 is disposed on, the first drill rod 33 is inserted into the slot 31, the pressing cylinder 27 is clamped inside the annular groove 21, the pressing cylinder 27 is rotated, the second threaded surface 29 is extruded through the first threaded surface 28, the pressing cylinder 27 is driven to move downwards, the pressing inclined surface 25 is pressed through the first conical surface 26 on the pressing cylinder 27, the two push plates 24 are pushed to move towards the first drill rod 33, and the fixed clamping block 35 is pushed to move through the push plates 24.

Specifically, the mounting mechanism 3 includes an insertion slot 31, a second taper surface 32, a first drill rod 33, a fixed slot 34, a fixed fixture block 35, a through hole 36, a threaded hole 37, a bolt 38, and a fixed hole 39, the insertion slot 31 is disposed at the center of the upper surface of the drill bit 1, the opening of the insertion slot 31 is provided with the second taper surface 32, the insertion slot 31 is internally inserted with the first drill rod 33, the first drill rod 33 is symmetrically provided with two fixed slot 34 on the surface, the fixed fixture block 35 is clamped inside the two fixed slot 34, the fixed fixture block 35 is inserted inside the through hole 36, the through hole 36 is disposed on the inner wall of the insertion slot 31, the other end of the through hole 36 is communicated with the annular groove 21, the outer wall of the first drill rod 33 is symmetrically provided with two threaded holes 37, the two threaded holes 37 are internally connected with bolts 38 by threads, the two bolts 38 are respectively inserted inside the two fixed holes 39, the, inside fixed fixture block 35 removed the joint to fixed slot 34, fixed first drilling rod 33 through fixed fixture block 35 and fixed slot 34, pass fixed orifices 39 and screw hole 37 threaded connection with bolt 38 simultaneously, and then fix drill bit 1 and first drilling rod 33 through bolt 38 and fixed fixture block 35, the effectual connection that prevents between drill bit 1 and the first drilling rod 33 takes place to become flexible, prevents that drill bit 1 and first drilling rod 33 from taking place to break away from.

Specifically, the sliding mechanism 4 includes a second drill rod 41, a sliding groove 42, a sliding block 43, a moving cylinder 44 and a third thread 45, the second drill rod 41 is connected to the upper end of the first drill rod 33 in a clamping manner, two sliding grooves 42 are symmetrically formed in the outer wall of the second drill rod 41, two sliding blocks 43 matched with each other are slidably connected to the inside of each sliding groove 42, the two sliding blocks 43 are fixedly connected to the inner wall of the same moving cylinder 44, the third thread surface 45 is formed in the outer wall of the lower end of the moving cylinder 44, the moving cylinder 44 is pushed to move downwards, and the third thread surface 45 is in contact with the fourth thread surface 55 after the moving cylinder 44 moves downwards.

Specifically, fixing mechanism 5 is including fixed ring 51, annular 52, joint ring 53, the rotary drum 54, fourth flank 55, fixed ring 51 fixes the cover on the outer wall of first drilling rod 33, annular 52 has been seted up on fixed ring 51's the outer wall, the inside joint of annular 52 has joint ring 53, fixed cover on joint ring 53's the outer wall has connect rotary drum 54, fourth flank 55 has been seted up on rotary drum 54's the upper end inner wall, rotate rotary drum 54, drive third flank 45 and fourth flank 55 threaded connection through rotating rotary drum 54, and then make rotary drum 54 and removal section of thick bamboo 44 fixed, and then prevent that the junction of first drilling rod 33 and second drilling rod 41 from taking place to become flexible, and then prevent that first drilling rod 33 and second drilling rod 41 from taking place to drop.

Specifically, the clamping mechanism 6 includes insertion holes 61, insertion rods 62, clamping grooves 63, fixing blocks 64, circular grooves 65, and second springs 66, the two insertion holes 61 are symmetrically formed on the lower surface of the fixing ring 51, the insertion rods 62 are respectively inserted into the two insertion holes 61, the upper ends of the two insertion rods 62 are respectively inserted into the two clamping grooves 63, the two clamping grooves 63 are symmetrically formed at the lower end of the movable cylinder 44, the two fixing blocks 64 are symmetrically and fixedly connected to the surfaces of the two insertion rods 62, the two fixing blocks 64 are respectively clamped into the two circular grooves 65, the circular grooves 65 are formed in the inner wall of the insertion holes 61, the second springs 66 are movably sleeved on the surfaces of the ends of the insertion rods 62 located inside the circular grooves 65, the upper ends of the second springs 66 are fixedly connected with the fixing blocks 64, the insertion rods 62 are inserted into the insertion holes 61 when the movable cylinder 44 moves down, the movable cylinder 44 and the fixing ring 51 are fixed by the insertion rods 62, when the first drill pipe 33 and the second rotary rod 41 are subjected to opposite forces, the two opposite forces are borne by the insert rod 62.

Specifically, one end of the fixing clamping block 35, which is far away from the first drill rod 33, is fixedly connected with the push plate 24, so that the movement of the push plate 24 is limited, and meanwhile, the fixing clamping block 35 is pushed to move by the push plate 24.

Specifically, the lower end of the plunger 62 extends outside the lower end of the insertion hole 61, so that the plunger 62 can be pulled from the lower end.

When the drill bit is used, the first drill rod 33 is firstly inserted into the slot 31, the pressing cylinder 27 is clamped into the annular groove 21, the pressing cylinder 27 is rotated, the second thread surface 29 is extruded through the first thread surface 28, the pressing cylinder 27 is driven to move downwards, the pressing inclined surface 25 is pressed through the first conical surface 26 on the pressing cylinder 27, the two push plates 24 are pushed to move towards the first drill rod 33, the fixed clamping block 35 is pushed to move through the push plates 24, the fixed clamping block 35 is moved to be clamped into the fixed clamping groove 34, the first drill rod 33 is fixed through the fixed clamping block 35 and the fixed clamping groove 34, the bolt 38 penetrates through the fixed hole 39 to be in threaded connection with the threaded hole 37, the drill bit 1 and the first drill rod 33 are further fixed through the bolt 38 and the fixed clamping block 35, connection looseness between the drill bit 1 and the first drill rod 33 is effectively prevented, and the drill bit 1 and the first drill rod 33 are prevented from being separated, after the first drill rod 33 and the second drill rod 41 are fixed, the moving cylinder 44 is pushed to move downwards, the third thread surface 45 is in contact with the fourth thread surface 55 after the moving cylinder 44 moves downwards, then the rotary drum 54 is rotated, the rotary drum 54 is rotated to drive the third thread surface 45 to be in threaded connection with the fourth thread surface 55, the rotary drum 54 and the moving cylinder 44 are fixed, meanwhile, when the moving cylinder 44 moves downwards, the insertion rod 62 is inserted into the insertion hole 61, the moving cylinder 44 and the fixing ring 51 are fixed through the insertion rod 62, when the first drill rod 33 and the second drill rod 41 are subjected to opposite forces, the insertion rod 62 is subjected to opposite forces, the connection part of the first drill rod 33 and the second drill rod 41 is prevented from loosening, and the first drill rod 33 and the second drill rod 41 are prevented from falling off.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An oil drill rod comprising a drill bit (1), characterized in that: the outer side of the upper surface of drill bit (1) is provided with pressing mechanism (2), the upper surface center department of drill bit (1) is provided with installation mechanism (3), the upper end of installation mechanism (3) is provided with slide mechanism (4), the installation mechanism (3) be provided with fixed establishment (5) on the surface, the inside of fixed establishment (5) is provided with clamping mechanism (6).

2. An oil drill pipe according to claim 1, characterized in that: the pressing mechanism (2) comprises an annular groove (21), spring grooves (22), first springs (23), a push plate (24), pressing inclined planes (25), first conical surfaces (26), a pressing barrel (27), first threaded surfaces (28) and second threaded surfaces (29), wherein the annular groove (21) is formed in the upper surface of the outer side of the drill bit (1), the inner wall of the annular groove (21) is symmetrically provided with the two spring grooves (22), the two spring grooves (22) are fixedly connected with the first springs (23), the other ends of the two first springs (23) are fixedly connected with the push plate (24), the two push plates (24) are respectively provided with the pressing inclined planes (25) on the side wall far away from the spring grooves (22), the two pressing inclined planes (25) are in tight contact with the first conical surfaces (26), the first conical surfaces (26) are formed in the inner wall of the lower end of the pressing barrel (27), the outer wall of the pressing cylinder (27) is provided with a first thread surface (28), the first thread surface (28) is in threaded connection with a second thread surface (29), and the second thread surface (29) is arranged on the side wall of the annular groove (21).

3. An oil drill pipe according to claim 1, characterized in that: the mounting mechanism (3) comprises a slot (31), a second conical surface (32), a first drill rod (33), a fixed clamping groove (34), a fixed clamping block (35), a through hole (36), a threaded hole (37), a bolt (38) and a fixed hole (39), wherein the slot (31) is formed in the center of the upper surface of the drill bit (1), the second conical surface (32) is formed in an opening of the slot (31), the first drill rod (33) is inserted into the slot (31), the two fixed clamping grooves (34) are symmetrically formed in the surface of the first drill rod (33), the fixed clamping blocks (35) are clamped in the two fixed clamping grooves (34), the fixed clamping blocks (35) are inserted into the through hole (36), the through hole (36) is formed in the inner wall of the slot (31), and the other end of the through hole (36) is communicated with the annular groove (21), two threaded holes (37) are symmetrically formed in the outer wall of the first drill rod (33), bolts (38) are connected to the inner portions of the two threaded holes (37) in a threaded mode, the two bolts (38) are respectively inserted into two fixing holes (39), and the two fixing holes (39) are formed in the outer wall of the pressing barrel (27).

4. An oil drill pipe according to claim 1, characterized in that: slide mechanism (4) include second drilling rod (41), spout (42), slider (43), remove a section of thick bamboo (44), third screw thread (45), second drilling rod (41) joint is in the upper end of first drilling rod (33), two spout (42) have been seted up to the symmetry on the outer wall of second drilling rod (41), the inside sliding connection of spout (42) has two assorted slider (43), two slider (43) fixed connection is on the inner wall of same removal section of thick bamboo (44), third screw thread face (45) have been seted up on the lower extreme outer wall of removal section of thick bamboo (44).

5. An oil drill pipe according to claim 1, characterized in that: fixed establishment (5) are including solid fixed ring (51), annular (52), joint ring (53), rotary drum (54), fourth flank (55), gu fixed ring (51) is fixed to be cup jointed on the outer wall of first drilling rod (33), annular (52) have been seted up on the outer wall of solid fixed ring (51), the inside joint of annular (52) has joint ring (53), gu fixed cover on the outer wall of joint ring (53) has connect rotary drum (54), fourth flank (55) have been seted up on the upper end inner wall of rotary drum (54).

6. An oil drill pipe according to claim 1, characterized in that: the clamping mechanism (6) comprises jacks (61), inserting rods (62), clamping grooves (63), fixing blocks (64), circular grooves (65) and second springs (66), the two jacks (61) are symmetrically arranged on the lower surface of the fixing ring (51), the inserting rods (62) are inserted into the two jacks (61), the upper ends of the two inserting rods (62) are respectively inserted into the two clamping grooves (63), the two clamping grooves (63) are symmetrically arranged at the lower end of the movable barrel (44), the two fixing blocks (64) are symmetrically and fixedly connected onto the surface of the two inserting rods (62), the two fixing blocks (64) are respectively clamped into the two circular grooves (65), the circular grooves (65) are arranged on the inner walls of the jacks (61), and the second springs (66) are movably sleeved on the surface of one end, located inside the circular grooves (65), of the inserting rods (62), the upper end of the second spring (66) is fixedly connected with the fixed block (64).

7. An oil drill pipe according to claim 3, characterized in that: one end, far away from the first drill rod (33), of the fixed clamping block (35) is fixedly connected with the push plate (24).

8. An oil drill pipe according to claim 6, characterized in that: the lower end of the insert rod (62) extends to the outside of the lower end of the insert hole (61).