CN218759765U

CN218759765U - Wear-resisting three-edged drill collar for petroleum drilling

Info

Publication number: CN218759765U
Application number: CN202222585857.7U
Authority: CN
Inventors: 曹连强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-03-28
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a wear-resisting three-edged drill collar for petroleum drilling, which comprises a connecting block, a square fixing box, a drill collar connecting pipe and a quick assembly and disassembly component, wherein the square fixing box is arranged at the top of the connecting block; the quick dismounting assembly comprises a mandril, a baffle, a first trapezoidal block, a spring, a second trapezoidal block and a mandril; the square fixed box of top fixedly connected with of connecting block, the top symmetry sliding connection of square fixed box has four ejector pins, the equal fixedly connected with baffle in top of ejector pin. The beneficial effects of the utility model reside in that, then can reach the work purpose of the drilling tool of quick replacement drill collar bottom through setting up quick dismantlement subassembly to improved the operating speed that the drilling tool was changed to the drill collar greatly, improved work efficiency, very big improvement than traditional device operating mass with the availability factor.

Description

Wear-resisting three-edged drill collar for petroleum drilling

Technical Field

The utility model relates to a drilling equipment technical field especially relates to a petroleum drilling is with wear-resisting three-edged drill collar.

Background

The drill collar is generally installed at the bottommost part of a drill string and is one of main structures in the whole drilling tool structure, and the main work of the drill collar is to apply pressure to a drill bit part at the bottom of the drill collar, so that the drill bit can drill more quickly and stably.

Through retrieval, the chinese patent discloses a wear-resistant three-edged drill collar for oil drilling (No. CN 202417344U), which can reduce the labor intensity of drillers and improve the drilling time efficiency, but in the actual application process, the above-mentioned patent still has an optimization point, that is, the drill collar and the drill bit are connected in a threaded manner, the connection mode has a drawback in the actual use, the threaded connection would cause difficult disassembly if the torque is large in the use process, and the possibility of wire slipping would be caused if the torque is too large, further increasing the difficulty of disassembly, thereby causing the drill bit assembly at the bottom to be very inconvenient in the replacement process, and being not beneficial to the actual application and operation.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, the main object of the present invention is to provide a wear-resistant three-edged drill collar for oil drilling.

The technical scheme of the utility model is like this: a wear-resistant triangular drill collar for petroleum drilling comprises a connecting block, a square fixing box, a drill collar connecting pipe and a quick assembly and disassembly assembly, wherein the square fixing box is arranged at the top of the connecting block, the drill collar connecting pipe is arranged at the top of the connecting block and positioned on the outer side of the square fixing box, and the quick assembly and disassembly assembly is arranged inside the square fixing box;

the quick dismounting assembly comprises a top rod, a baffle, a first trapezoidal block, a spring, a second trapezoidal block and a top block;

the top fixedly connected with square fixed box of connecting block, the top symmetry sliding connection of square fixed box has four ejector pins, the equal fixedly connected with baffle in top of ejector pin, the one end that the baffle was kept away from to the ejector pin all extends to the inside of square fixed box, four the ejector pin is located the first trapezoidal piece of fixedly connected with between the inside one end of square fixed box.

As a preferred embodiment, the spring is sleeved between the top of the ejector rod and the top of the inner wall of the square fixing box, the top of the first trapezoidal block is positioned on the outer side of the ejector rod, the two second trapezoidal blocks are symmetrically and slidably connected to the inner portion of the square fixing box and the outer side of the first trapezoidal block, and the two second trapezoidal blocks are in contact with the first trapezoidal block on the side close to the second trapezoidal block.

As a preferred embodiment, a drill collar connecting pipe is arranged at the top of the connecting block and outside the square fixing box, the bottom of the inner wall of the drill collar connecting pipe is connected with the outside of the square fixing box in a sliding manner, one side, away from the second trapezoidal block, of each of the two second trapezoidal blocks extends to the outside of the square fixing box, and the square fixing box is clamped with the drill collar connecting pipe through the second trapezoidal block.

As a preferred embodiment, the bottom of the first trapezoid block is fixedly connected with a top block, a locking groove is formed in the connecting block, a locking plate is connected to the inside of the locking groove in a sliding manner, and the bottom of the top block penetrates through the bottom of the square fixing box, extends to the inside of the locking groove and contacts with the top of the locking plate.

As a preferred embodiment, a groove is formed in one side of the locking plate, an inclined plane matched with the groove for use is formed at the bottom of the top block, and three fixing holes are formed in the top of the locking plate.

In a preferred embodiment, a fixing nut is screwed on the top of the connecting block and positioned outside the drill collar connecting pipe, and the bottom of the fixing nut extends into the inside of one of the fixing holes and is connected with the fixing hole in a sliding mode.

As a preferred embodiment, the bottom of the connecting block is fixedly connected with three drill bits at equal intervals, hard alloys are arranged on the outer sides of the drill bits, and push grooves are symmetrically formed in the outer sides of the drill collar connecting pipes and located on the outer sides corresponding to the second trapezoidal blocks.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides a device mainly used is in the bottommost of the used drilling string of oil drilling exploitation, is the partly of whole drilling tool, and then can reach the work purpose of the drilling tool of quick replacement drill collar bottom through setting up quick dismantlement subassembly to improved the operating speed that the drilling tool was changed to the drill collar greatly, improved work efficiency, very big improvement operation quality and availability factor than traditional device.

Drawings

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

FIG. 2 is a front cross-sectional view of the connecting block and the square fixing box of the present invention;

fig. 3 is a side sectional view of the connecting block and the square fixing box of the present invention;

fig. 4 is a perspective view of the locking plate of the present invention.

Illustration of the drawings: 1. connecting blocks; 2. a square fixing box; 3. a drill collar connecting pipe; 4. a top rod; 5. a baffle plate; 6. a first trapezoidal block; 7. a spring; 8. a second trapezoidal block; 9. a top block; 10. a locking groove; 11. a locking plate; 12. beveling; 13. a fixing hole; 14. fixing a nut; 15. a drill bit; 16. hard alloy; 17. and (6) pushing the groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The invention will be further described with reference to the accompanying drawings and specific embodiments

Example 1

As shown in fig. 1-4, the utility model provides a technical solution: the drill collar connecting pipe quick-dismounting device comprises a connecting block 1, a square fixing box 2, a drill collar connecting pipe 3 and a quick-dismounting assembly, wherein the square fixing box 2 is arranged at the top of the connecting block 1, the drill collar connecting pipe 3 is arranged at the top of the connecting block 1 and is positioned on the outer side of the square fixing box 2, and the quick-dismounting assembly is arranged inside the square fixing box 2;

the quick dismounting assembly comprises a mandril 4, a baffle 5, a first trapezoidal block 6, a spring 7, a second trapezoidal block 8 and a jacking block 9;

the square fixed box 2 of top fixedly connected with of connecting block 1, the top symmetry sliding connection of square fixed box 2 has four ejector pins 4, the equal fixedly connected with baffle 5 in top of ejector pin 4, the one end that baffle 5 was kept away from to ejector pin 4 all extends to the inside of square fixed box 2, the first trapezoidal piece 6 of fixedly connected with between the one end that four ejector pins 4 are located square fixed box 2 inside.

The device in this embodiment is mainly used in the bottommost of the used drilling string for oil drilling exploitation, be a part of whole drilling tool, and in this embodiment, can reach the work purpose of the drilling tool of quick replacement drill collar bottom through setting up quick dismantlement subassembly, thereby the operating speed of drill collar change drilling tool has been improved greatly, and work efficiency is improved, make drill collar connecting pipe 3 drive connecting block 1 that can be better rotate through setting up square fixed box 2, drive four ejector pins 4 through setting up that first trapezoidal piece 6 can be better and remove, thereby make first trapezoidal piece 6 extrusion spring 7, and then can utilize the elasticity of spring 7 to provide power for the restoration of first trapezoidal piece 6.

Example 2

As shown in fig. 1-4, a spring 7 is sleeved outside the ejector rod 4 and between the top of the first trapezoidal block 6 and the top of the inner wall of the square fixing box 2, two second trapezoidal blocks 8 are symmetrically and slidably connected inside the square fixing box 2 and outside the first trapezoidal block 6, one sides of the two second trapezoidal blocks 8 close to each other are in contact with the first trapezoidal block 6, the second trapezoidal blocks 8 can be better matched with the first trapezoidal block 6 for use by arranging the second trapezoidal blocks 8, and when the first trapezoidal block 6 moves, the two second trapezoidal blocks 8 can be driven to move, so that the two second trapezoidal blocks 8 are clamped with the drill collar connecting pipe 3;

the drill collar connecting pipe 3 is arranged at the top of the connecting block 1 and located on the outer side of the square fixing box 2, the bottom of the inner wall of the drill collar connecting pipe 3 is connected with the outer side of the square fixing box 2 in a sliding mode, one sides, far away from the two second trapezoidal blocks 8, of the two second trapezoidal blocks extend to the outer side of the square fixing box 2, the square fixing box 2 is connected with the drill collar connecting pipe 3 in a clamping mode through the second trapezoidal blocks 8, through the technical means, the drill collar connecting pipe 3 and the square fixing box 2 are connected in a clamping mode, and therefore the work purpose that the square fixing box 2 and the drill collar connecting pipe 3 are rapidly disassembled is achieved;

the bottom of the first trapezoidal block 6 is fixedly connected with an ejector block 9, a locking groove 10 is formed in the connecting block 1, a locking plate 11 is slidably connected into the locking groove 10, the bottom of the ejector block 9 penetrates through the bottom of the square fixing box 2, extends into the locking groove 10 and contacts with the top of the locking plate 11, the ejector block 9 can be better driven to move by arranging the locking plate 11, the first trapezoidal block 6 is driven to move by moving the ejector block 9, and the locking plate 11 can be better placed by arranging the locking groove 10, so that the whole normal use of the device is not influenced;

the locking device comprises a locking plate 11, a bevel 12, an inclined plane, three fixing holes 13 and a fixing device, wherein the bevel 12 is formed in one side of the locking plate 11, the inclined plane matched with the bevel 12 is formed in the bottom of an ejector block 9, the three fixing holes 13 are formed in the top of the locking plate 11, the locking plate can be better matched with the ejector block 9 for use by arranging the bevel 12, and the locking plate 11 can be better fixed by arranging the fixing holes 13;

the top of the connecting block 1 and the outer side of the drill collar connecting pipe 3 are in threaded connection with a fixing nut 14, the bottom of the fixing nut 14 extends into one of the fixing holes 13 and is in sliding connection with the fixing hole, the locking plate 11 can be better fixed through the fixing nut 14, and the copper drum coupling is more convenient to disassemble due to the fixing nut 14;

wherein, the three drill bits 15 of bottom equidistance fixedly connected with of connecting block 1, the outside of drill bit 15 all is provided with carbide 16, and the outside of drill collar connecting pipe 3 just is located the outside symmetry that corresponds second trapezoidal piece 8 and has seted up push away groove 17, can guarantee the ability of this device drilling work through setting up three drill bit 15, has further improved the wearability of drill bit 15 through setting up carbide 16 with drill bit 15 outside.

The working principle is as follows:

as shown in fig. 1-4, in actual use, when a drilling tool at the bottom of a drill collar needs to be replaced, only the fixing nut 14 needs to be removed, then the locking plate 11 is knocked out from the locking groove 10 by using a workpiece such as a chisel, and when the locking plate 11 is knocked out, the spring 7 in a compressed state starts to rebound by using the elasticity of the spring, so that the first trapezoidal block 6 and the ejector block 9 are ejected out, then the two second trapezoidal blocks 8 are pushed back to the preset positions through the push groove 17, so that the whole unlocking work is completed, during the installation process, only the square fixing box 2 needs to be placed at the bottom of the drill collar connecting pipe 3 in advance, then the locking plate 11 house is pushed up the ejector block 9 through extrusion or knocking in the locking groove 10, so that the first trapezoidal block 6 ejects the two second trapezoidal blocks 8, and the fixing nut 14 fixes the locking plate 11 through any fixing hole 13, so that the replacement work of the drilling tool is completed, and the operation quality and the use efficiency are greatly improved compared with those of the conventional drilling tool.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a wear-resisting three-edged drill collar for oil drilling, includes connecting block (1), square fixed box (2), drill collar connecting pipe (3) and quick assembly disassembly subassembly, its characterized in that: the square fixing box (2) is arranged at the top of the connecting block (1), the drill collar connecting pipe (3) is arranged at the top of the connecting block (1) and located on the outer side of the square fixing box (2), and the quick assembly disassembly assembly is arranged inside the square fixing box (2);

the quick dismounting assembly comprises a mandril (4), a baffle (5), a first trapezoidal block (6), a spring (7), a second trapezoidal block (8) and a mandril (9);

the square fixed box (2) of top fixedly connected with of connecting block (1), the top symmetry sliding connection of square fixed box (2) has four ejector pins (4), the equal fixedly connected with baffle (5) in top of ejector pin (4), the one end that baffle (5) were kept away from in ejector pin (4) all extends to the inside of square fixed box (2), four first trapezoidal piece (6) of fixedly connected with between the one end that ejector pin (4) are located square fixed box (2) inside.

2. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 1, wherein: all overlap between the outside of ejector pin (4) and the top that is located the top of first trapezoidal piece (6) and the top of square fixed box (2) inner wall has spring (7), the outside symmetry sliding connection that the inside of square fixed box (2) just is located first trapezoidal piece (6) has two second trapezoidal pieces (8), two one side that second trapezoidal piece (8) are close to mutually all contacts with first trapezoidal piece (6).

3. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 1, wherein: the drill collar connecting pipe (3) is arranged at the top of the connecting block (1) and on the outer side of the square fixing box (2), the bottom of the inner wall of the drill collar connecting pipe (3) is connected with the outer side of the square fixing box (2) in a sliding mode, the two second trapezoidal blocks (8) are far away from one side and extend to the outer side of the square fixing box (2), and the square fixing box (2) is connected with the drill collar connecting pipe (3) in a clamping mode through the second trapezoidal blocks (8).

4. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 1, wherein: the bottom fixedly connected with kicking block (9) of first trapezoidal piece (6), locking groove (10) have been seted up to the inside of connecting block (1), the inside sliding connection in locking groove (10) has locking plate (11), the bottom of kicking block (9) runs through the bottom of square fixed box (2) and extends to the inside in locking groove (10) and contact with the top of locking plate (11).

5. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 4, wherein: a groove (12) is formed in one side of the locking plate (11), an inclined plane matched with the groove (12) for use is formed in the bottom of the ejector block (9), and three fixing holes (13) are formed in the top of the locking plate (11).

6. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 1, wherein: the top of the connecting block (1) and the outer side of the drill collar connecting pipe (3) are connected with a fixing nut (14) in a threaded mode, and the bottom of the fixing nut (14) extends into one of the fixing holes (13) and is connected with the fixing hole in a sliding mode.

7. The wear-resistant three-edged drill collar for petroleum drilling as recited in claim 1, wherein: the drill collar is characterized in that three drill bits (15) are fixedly connected to the bottom of the connecting block (1) at equal intervals, hard alloy (16) is arranged on the outer sides of the drill bits (15), and push grooves (17) are symmetrically formed in the outer sides of the drill collar connecting pipes (3) and located on the outer sides of the second trapezoidal blocks (8).