CN219974439U

CN219974439U - Drilling device

Info

Publication number: CN219974439U
Application number: CN202321678385.8U
Authority: CN
Inventors: 高亮; 周迎辰; 贾广民; 姚广; 邢立红; 赵鲁; 关伯乐; 董晓玉; 马南
Original assignee: Liaohe Petroleum Exploration Bureau
Current assignee: Liaohe Petroleum Exploration Bureau
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-07
Anticipated expiration: 2033-06-29

Abstract

The utility model relates to the technical field of drilling devices, in particular to a drilling device, which comprises a drill bit, a drill collar arranged on the upper part of the drill bit, a drill rod connected on the upper part of the drill collar through threads and a centralizing sleeve for preventing the drill bit from inclining, wherein the centralizing sleeve is in a hollow cylinder shape, the outer wall diameter of the centralizing sleeve is equal to the drilling diameter processed by the drill bit, the centralizing sleeve is sleeved at the joint of the drill collar and the drill rod, a first positioning clamping plate is arranged on the outer wall of the upper part of the drill collar, a second positioning clamping plate is arranged on the outer wall of the lower part of the drill rod, the first positioning clamping plate and the second positioning clamping plate are matched for clamping the centralizing sleeve, so that the centralizing sleeve is stabilized at the joint of the drill rod and the drill collar, the rigidity of the joint of the drill rod and the drill collar can be ensured, the joint is prevented from bending, and the centralizing sleeve can ensure synchronous rotation of the drill rod and the drill collar, and the screw thread screwing of the drill collar can be prevented.

Description

Drilling device

Technical Field

The utility model relates to the technical field of drilling devices, in particular to a drilling device.

Background

In the petroleum exploitation process, firstly, drilling is carried out, namely, a square rod is driven to rotate through a turntable, the square rod drives a drill rod at the bottom to rotate, the drill rod drives a drill collar at the bottom and a drill bit to rotate, so that drilling is realized, the number of the drill rods required is increased along with the gradual increase of the drilling depth, the pressure born by the drill rods close to the drill bit is increased, the condition that the drill rods are bent can occur, the angle of the drill bit is not in a vertical state after the drill rods are bent, thus the inclination of a well body is caused, and in order to avoid the inclination of the well body drilled by the drill bit, a centralizing sleeve which is equal to the diameter of the well body is required to be added on the drill rods or the drill collars above the drill bit, the influence of the bending of the drill rods on the angle of the drill bit is reduced, and the inclination preventing of the drill bit is also the origin of the full-hole drilling tool; the prior art has the problems that firstly; most of drill collars and drill rods are connected through threads, the threaded connection parts of the drill collars and the drill rods are fragile, and if bending points occur at the threaded connection parts, the drill collars and the drill rods are difficult to detach in the later stage of thread deformation; when the drill rod drives the drill collar to rotate, the threads can move in the screwing direction, and the drill rod and the drill collar are difficult to detach in the later period.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to: through setting up the junction at drilling rod and drill collar with the cover that rights, can guarantee the rigidity of drilling rod and drill collar junction, avoid the junction to buckle, right the cover simultaneously and can guarantee that drilling rod and drill collar rotate in step to avoid the screw thread of both to revolve to twist too tightly.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a drilling device, includes the drill bit, installs the drill collar on drill bit upper portion, through threaded connection at the drill rod of drill collar upper portion and be used for preventing the right cover of drill bit slope, right the cover and be hollow cylinder form, just right the outer wall diameter of cover equals with the drilling diameter of drill bit processing, right the cover and establish the junction at drill collar and drill rod, drill collar upper portion outer wall is provided with first location cardboard, be provided with the second location cardboard on the lower part outer wall of drill rod, first location cardboard and second location cardboard cooperation are right the cover centre gripping, realize right the cover and stabilize the junction at drill rod and drill collar.

The beneficial effects of the utility model are as follows: through establishing the cover that right in the junction of drilling rod and drill collar, can make the rigidity increase of junction, avoid the inflection point to take place in the junction to be convenient for the dismantlement of later stage drill collar and drilling rod.

In order to enable the first positioning clamping plate and the second positioning clamping plate to fix the centralizing sleeves with different heights.

As a further improvement of the technical scheme, the first positioning clamping plate is fixedly connected with the drill collar, the second positioning clamping plate is connected with the drill rod in a sliding sleeve mode, a fixing ring is fixedly connected to the outer wall of the drill rod and located above the second positioning clamping plate, a bolt is connected to the fixing ring through threads, and the bottom of the bolt is abutted to the upper surface of the second positioning clamping plate.

The beneficial effects of this improvement are: the first locating clamping plate is fixedly connected with the drill rod to support the centralizing sleeve, the second locating clamping plate is slidably sleeved on the drill collar, and the second locating clamping plate can be abutted against the drill collar through the bolts to achieve stable position, so that the centralizing sleeve is prevented from moving up and down, and the centralizing sleeves with different heights can be stabilized.

In order to enable the first positioning clamping plate, the second positioning clamping plate and the centralizing sleeve to drive the drill rod and the drill collar to synchronously rotate, the threads are prevented from moving towards the screwing direction.

As the further improvement of above-mentioned technical scheme, the structure of first location cardboard and second location cardboard is the same and all includes the annular plate and set up the rotation stopping post on the annular plate, be provided with the through-hole that runs through the righting cover from top to bottom on the righting cover, the through-hole is mutually inserted with the rotation stopping post, the outside of drilling rod is provided with the rotation stopping groove, be provided with on the inner wall of second location cardboard with the rotation stopping groove complex and stop the protrusion part, can stabilize the second location cardboard on the upper portion of righting the cover through adjusting bolt's position.

The beneficial effect of this improvement: the first locating clamping plate can enable the drill collar to move synchronously with the centralizing sleeve when the through hole of the centralizing sleeve is inserted into the through hole of the swivel stopping column of the first locating clamping plate through the annular plate and the swivel stopping column, the second locating clamping plate can enable the second locating clamping plate to rotate synchronously with the centralizing sleeve when the swivel stopping column of the second locating clamping plate is inserted into the through hole of the centralizing sleeve, and meanwhile the second locating clamping plate can rotate synchronously with the drill rod through the cooperation of the swivel stopping groove and the swivel stopping protruding portion, so that synchronous rotation of the drill collar, the drill rod and the centralizing sleeve is achieved, and screw threads are prevented from moving towards the screwing direction, so that later-stage inconvenient disassembly is caused.

In order to ensure that the rotation stopping column and the through hole can fully ensure the synchronous movement of the righting sleeve, the first positioning clamping plate and the second positioning clamping plate.

As a further improvement of the scheme, the number of the anti-rotation posts and the through holes is multiple, and the anti-rotation posts and the through holes are arranged in one-to-one correspondence.

The beneficial effect of this improvement, the synchronous rotation effect of three can fully be guaranteed to the setting of end rotating post and through-hole one-to-one.

In order to enable the second locating clamping plate to be stable at different positions of the rotation stopping groove.

As a further improvement of the above technical solution, the length of the bolt is not less than the length of the rotation stopping groove.

The beneficial effects of this improvement are: the length of the bolt is not lower than that of the rotation stopping groove, and the second positioning clamping plate can be stabilized above the centralizing sleeve.

In order that the centralizing sleeve does not obstruct the discharge of mud and sand during the drilling process.

As a further improvement of the scheme, a plurality of concave parts are arranged outside the centralizing sleeve, and the concave parts are uniformly distributed along the axis of the centralizing sleeve at intervals.

The beneficial effect of this improvement, the sediment discharge of the well body can be convenient for to the depressed part.

In order to facilitate flushing of the drill well inside the drill collar and drill pipe.

As a further improvement of the scheme, the insides of the drill collar and the drill rod are hollow.

The beneficial effect of this improvement, cavity setting is convenient for carry out the water injection to the inside of well drilling for silt discharge.

Drawings

FIG. 1 is a schematic illustration of an unassembled structure of the present utility model;

FIG. 2 is a block diagram of a second positioning card of the present utility model mounted on a drill pipe;

FIG. 3 is a schematic view of the assembled structure of the present utility model;

fig. 4 is a cross-sectional view of the present utility model.

In the figure: 1. a drill bit; 2. a drill collar; 3. centralizing sleeve; 301. a first positioning clamping plate; 3011. an annular plate; 3012. a rotation stopping column; 3021. a through hole; 3022. a recessed portion; 303. a second positioning clamping plate; 3031. a rotation stopping protrusion; 304. a fixing ring; 305. a bolt; 306. a rotation stopping groove; 4. and (3) drilling rod.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

As shown in figures 1-4, the drilling device comprises a drill bit 1, a drill collar 2 arranged on the upper part of the drill bit 1, a drill rod 4 connected on the upper part of the drill collar 2 through threads and a centralizing sleeve 3 for preventing the drill bit 1 from inclining, wherein the centralizing sleeve 3 is in a hollow cylinder shape, the outer wall diameter of the centralizing sleeve 3 is equal to the drilling diameter processed by the drill bit 1, the centralizing sleeve 3 is sleeved at the joint of the drill collar 2 and the drill rod 4, a first positioning clamping plate 301 is arranged on the outer wall of the upper part of the drill collar 2, a second positioning clamping plate 303 is arranged on the outer wall of the lower part of the drill rod 4, the first positioning clamping plate 301 and the second positioning clamping plate 303 are matched and clamped with the centralizing sleeve 3, the centralizing sleeve 3 is stabilized at the joint of the drill rod 4 and the drill collar 2, the rigidity of the joint can be increased by sleeving the centralizing sleeve 3 at the joint of the drill rod 4 and the drill collar 2, avoid bending points to happen at the joint, thereby facilitating the disassembly of the later drill collar 2 and the drill rod 4, the first positioning clamping plate 301 is fixedly connected with the drill collar 2, the second positioning clamping plate 303 is slidably sleeved with the drill rod 4 and connected with a fixed ring 304 which is fixedly connected with the outer wall of the drill rod 4 and is positioned above the second positioning clamping plate 303, the fixed ring 304 is connected with a bolt 305 through threads, the bottom of the bolt 305 is abutted with the upper surface of the second positioning clamping plate 303, the first positioning clamping plate 301 is fixedly connected with the drill rod 4 and can support the centralizing sleeve 3, the second positioning clamping plate 303 is slidably sleeved on the drill collar 2 and can be abutted against the second positioning clamping plate 303 through the bolt 305 to stabilize the position of the second positioning clamping plate 303, thereby avoiding the up-down movement of the centralizing sleeve 3, and simultaneously stabilizing the centralizing sleeve 3 with different heights, the first positioning clamping plate 301 and the second positioning clamping plate 303 have the same structure and comprise an annular plate 3011 and a rotation stopping column 3012 arranged on the annular plate 3011, a through hole 3021 penetrating through the centralizing sleeve 3 from top to bottom is arranged on the centralizing sleeve 3, the through hole 3021 is mutually inserted with the rotation stopping column 3012, a rotation stopping groove 306 is arranged outside the drill rod 4, a rotation stopping convex part 3031 matched with the rotation stopping groove 306 is arranged on the inner wall of the second positioning clamping plate 303, the second positioning clamping plate 303 can be stabilized on the upper part of the centralizing sleeve 3 through the position of an adjusting bolt 305, the first positioning clamping plate 301 can synchronously move with the centralizing sleeve 3 through the annular plate 3011 and the rotation stopping column 3012 of the first positioning clamping plate 301 when the through hole 3021 penetrating through the centralizing sleeve 3 is inserted, the rotation stopping column 3012 of the second positioning clamping plate 303 can synchronously rotate with the centralizing sleeve 3 when the through hole 3021 of the centralizing sleeve 3 is inserted with the second positioning clamping plate 303, meanwhile, the second positioning clamping plate 303 can synchronously rotate with the drill rod 4 through the matching of the rotation stopping groove 306 and the rotation stopping convex part 3031, thereby realizing the synchronous rotation of the drill collar 2, the drill rod 4 and the centralizing sleeve 3, avoiding the movement of threads in the screwing direction and causing inconvenient disassembly in the later period, the rotation stopping columns 3012 and the through holes 3021 are multiple, the rotation stopping columns 3012 and the through holes 3021 are arranged in one-to-one correspondence, the synchronous rotation effect of the three can be fully ensured through the one-to-one correspondence of the rotation stopping columns 3012 and the through holes 3021, the length of the bolt 305 is not less than the length of the rotation stopping groove 306, the second positioning clamping plate 303 can be stabilized above the centralizing sleeve 3, the plurality of concave parts 3022 are arranged outside the centralizing sleeve 3, the plurality of concave parts 3022 are uniformly distributed along the axis of the centralizing sleeve 3, the depressed part 3022 can be convenient for the sediment discharge of the well body, the inside of drill collar 2 and drilling rod 4 is the cavity, and the cavity sets up the inside of being convenient for to the well drilling and carries out the water injection for sediment discharge.

The working principle of the utility model is as follows: through establishing the junction with right cover 3 cover at drilling rod 4 and drill collar 2, can make the rigidity increase of junction, avoid the inflection point to take place in the junction, thereby the dismantlement of later stage drill collar 2 and drilling rod 4 of being convenient for, first location cardboard 301 can be when the through-hole 3021 on the through-hole 3012 and right cover 3 of first location cardboard 301 is right to the post 3012, make drill collar 2 and right cover 3 synchronous motion, the through-hole 3021 of the through-hole 3022 of the through-hole 3012 and right cover 3 of second location cardboard 303 can make second location cardboard 303 and right cover 3 synchronous rotation, simultaneously second location cardboard 303 can with drilling rod 4 synchronous rotation through the joining in marriage of the through-hole that keeps out of rotating groove 306 and the boss 3031, realize the synchronous rotation of drill collar 2, drilling rod 4 and right cover 3 from here, avoid the screw thread to the direction motion of screwing, lead to the inconvenient dismantlement of later stage.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that, due to the limited text expressions, there is virtually no limit to the specific structure, and that, for a person skilled in the art, modifications, alterations and combinations of these features may be made in a suitable manner without departing from the principles of the present utility model; such modifications, variations and combinations, or applications of the concepts and aspects of the utility model in other applications without modification, are contemplated as falling within the scope of the utility model.

Claims

1. The utility model provides a drilling device, includes drill bit (1), installs drill collar (2) on drill bit (1) upper portion, through drilling rod (4) of threaded connection on drill collar (2) upper portion and be used for preventing right cover (3) of drill bit (1) slope, right cover (3) are hollow cylinder form, just right the outer wall diameter of cover (3) and the drilling diameter of drill bit (1) processing equal, its characterized in that: the centering sleeve (3) is sleeved at the joint of the drill collar (2) and the drill rod (4), a first positioning clamping plate (301) is arranged on the outer wall of the upper portion of the drill collar (2), a second positioning clamping plate (303) is arranged on the outer wall of the lower portion of the drill rod (4), and the first positioning clamping plate (301) and the second positioning clamping plate (303) are matched to clamp the centering sleeve (3), so that the centering sleeve (3) is stabilized at the joint of the drill rod (4) and the drill collar (2).

2. A drilling apparatus according to claim 1, wherein: the first positioning clamping plate (301) is fixedly connected with the drill collar (2), the second positioning clamping plate (303) is connected with the drill rod (4) in a sliding sleeve mode, a fixing ring (304) is fixedly connected to the outer wall of the drill rod (4) and located above the second positioning clamping plate (303), a bolt (305) is connected to the fixing ring (304) through threads, and the bottom of the bolt (305) is abutted to the upper surface of the second positioning clamping plate (303).

3. A drilling apparatus according to claim 2, wherein: the structure of first location cardboard (301) and second location cardboard (303) is the same and all includes annular plate (3011) and sets up the rotation stopping post (3012) on annular plate (3011), be provided with on righting cover (3) from last through-hole (3021) that runs through righting cover (3) down, through-hole (3021) and rotation stopping post (3012) insert each other and close, the outside of drilling rod (4) is provided with and ends change groove (306), be provided with on the inner wall of second location cardboard (303) with end change groove (306) complex and end change convex part (3031), can stabilize second location cardboard (303) on the upper portion of righting cover (3) through the position of adjusting bolt (305).

4. A drilling apparatus according to claim 3, wherein: the number of the anti-rotation columns (3012) and the number of the through holes (3021) are multiple, and the anti-rotation columns (3012) and the through holes (3021) are arranged in one-to-one correspondence.

5. A drilling apparatus according to claim 3, wherein: the length of the bolt (305) is not lower than the length of the rotation stopping groove (306).

6. A drilling apparatus according to claim 1, wherein: the outside of righting cover (3) is provided with a plurality of depressed parts (3022), and a plurality of depressed parts (3022) are along the axle center interval evenly distributed of righting cover (3).

7. A drilling apparatus according to claim 1, wherein: the drill collar (2) and the drill rod (4) are hollow.