CN219932075U

CN219932075U - Guiding device for well drilling

Info

Publication number: CN219932075U
Application number: CN202321142627.1U
Authority: CN
Inventors: 赵海茜; 孙常胜; 胡东泽
Original assignee: Xinjiang Zhong'an Jiasheng Oilfield Technical Service Co ltd
Current assignee: Xinjiang Zhong'an Jiasheng Oilfield Technical Service Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-31
Anticipated expiration: 2033-05-12

Abstract

The utility model relates to the technical field of drilling tools, in particular to a guiding device for drilling, which comprises a guiding cylinder, wherein a circular channel penetrating up and down is formed in an inner cavity of the guiding cylinder, a thread groove matched with a thread of a drill bit is formed in the upper end of the circular channel, a horizontal through groove communicated with the outside is formed in the side wall of the thread groove, a fixing part capable of being adjusted by horizontal threads is arranged in the horizontal through groove, a transverse rib capable of being embedded in the thread of the drill bit is arranged at one end of the fixing part facing the inner cavity of the guiding cylinder, and an operation knob is arranged at one end of the fixing part facing the outer side of the guiding cylinder. According to the utility model, the fixing end is propped against the screw thread of the drill bit by screwing the operation knob, so that the transverse ribs are embedded between the screw threads of the drill bit, further fixing of the drill bit is completed, the condition of insufficient fixing between the original guiding device and the drill bit is reinforced, and meanwhile, the installation and the disassembly of the guiding device are convenient, and the device has certain practicability.

Description

Guiding device for well drilling

Technical Field

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

Background

The operation of drilling a borehole from the surface using mechanical equipment or man power is known as drilling. Generally refers to the engineering of drilling boreholes and large diameter water supply wells by exploring or developing liquid and gaseous minerals such as oil, gas, etc. The application of well drilling in national economy construction is very wide, and rotary table drilling is widely used in oil (gas) fields in China at present. The main equipment comprises a derrick, an operation platform, a diesel engine, a drilling machine, a drilling tool, a slurry pump, a generator, test equipment, a fuel oil tank, a boiler and the like.

When the drill bit guiding devices in the market at present are used, the drill bit guiding devices are usually required to be installed on the drill bit by means of other tools, and when the guiding devices are replaced, the operation is time-consuming and labor-consuming, and the working efficiency is affected. In a drill bit guide device for drilling, the application number of which is CN211144381U, a through groove is formed in a guide cylinder, and further locking of a drill bit is realized through cooperation of a fixing rod and a spring. However, in practical application, the drill bit and the guiding device are in a threaded fit structure, the fixing rod only has to be questioned about the effect of fixing the drill bit under the action of the spring, and the thread of the drill bit is not provided with a structure suitable for locking the fixing rod, so that a more firm locking mechanism needs to be considered, and the operation of quick replacement is performed without the aid of other tools.

Disclosure of Invention

The utility model provides a guiding device for drilling in order to solve the technical problems.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a guider for well drilling, includes the guide cylinder, round channel that runs through from top to bottom is seted up to the inner chamber of guide cylinder, round channel's upper end is provided with the screw thread groove that mutually supports with the screw thread of drill bit, the horizontal logical groove with outside intercommunication is seted up to the lateral wall of screw thread groove, but be provided with horizontal screw thread adjustment's fixed part in the horizontal logical groove, the one end of fixed part orientation guide cylinder inner chamber is provided with the horizontal arris that can gomphosis in the drill bit screw thread, and the one end of fixed part orientation guide cylinder outside is provided with operating knob.

Further, the fixed part comprises a bolt and a fixed end, the bolt is connected with the fixed end through a built-in connecting piece, the transverse rib is arranged on the fixed end and far away from one side of the bolt, and the operation knob is arranged on the bolt and far away from one side of the fixed end.

Further, the opposite surfaces of the bolt and the fixed end are provided with T-shaped cavities for accommodating built-in connecting pieces, two ends of each built-in connecting piece are provided with limiting parts, and the limiting parts are embedded in the T-shaped cavities.

Further, the side wall of the fixed end is provided with a limit edge parallel to the axis of the horizontal through groove, and the horizontal through groove is provided with a strip notch capable of accommodating the limit edge along the axial direction.

Further, the transverse ribs comprise 4 transverse ribs which are longitudinally and equidistantly arranged, and the distance between the adjacent transverse ribs is the same as the distance between the threads of the drill bit.

Further, two groups of horizontal through grooves are formed, and the two groups of horizontal through grooves are oppositely arranged.

Further, the bottom surface of guide cylinder has seted up the mud groove of several, and the mud groove of several is the arc setting and communicates with circular passageway respectively.

Furthermore, the guide cylinder is internally provided with slots at the lower end of the thread groove, and the slots are provided with four groups of slots which are respectively communicated with the thread groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the fixing end is propped against the screw thread of the drill bit by screwing the operation knob, so that the transverse ribs are embedded between the screw threads of the drill bit, further fixing of the drill bit is completed, the condition of insufficient fixing between the original guiding device and the drill bit is reinforced, and meanwhile, the guiding device is convenient to install and detach, and has certain practicability;

2. according to the utility model, by arranging the mud discharging grooves, mud scraps generated in the rock stratum drilling process can be discharged through the mud discharging grooves of the guide cylinder by the guide device, so that the drilling capacity of the device is improved;

3. the utility model has simple, convenient and quick operation, can complete the operation of replacing and installing the guide device without additional tools, and improves the working efficiency.

Drawings

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is a schematic view of a three-dimensional structure of the present utility model 1;

FIG. 3 is a schematic view of a three-dimensional structure of the present utility model 2;

FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 5 is a schematic structural view of a stationary member;

FIG. 6 is a schematic plan perspective view of a stationary component;

FIG. 7 is a partial schematic view of a horizontal channel;

the attached drawings are identified: the device comprises a 1-guide cylinder, a 2-circular channel, a 3-thread groove, a 4-horizontal through groove, a 401-strip notch, a 5-fixing part, a 6-bolt, a 7-fixing end, an 8-transverse strip edge, a 9-operation knob, a 10-connecting piece, a 11-limiting part, a 12-limiting edge, a 13-mud discharge groove and a 14-slot.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

Example 1

As shown in fig. 1-7, the guiding device for drilling disclosed by the utility model comprises a guiding cylinder 1, wherein a circular channel 2 penetrating up and down is formed in the inner cavity of the guiding cylinder 1, a thread groove 3 matched with threads of a drill bit is formed in the upper end of the circular channel 2, a horizontal through groove 4 communicated with the outside is formed in the side wall of the thread groove 3, a fixing part 5 capable of being adjusted by horizontal threads is arranged in the horizontal through groove 4, a transverse rib 8 capable of being embedded in the threads of the drill bit is arranged at one end of the fixing part 5 facing the inner cavity of the guiding cylinder 1, and an operation knob 9 is arranged at one end of the fixing part 5 facing the outer side of the guiding cylinder 1.

The fixing part 5 comprises a bolt 6 and a fixing end 7, the bolt 6 and the fixing end 7 are connected through a built-in connecting piece 10, the transverse rib 8 is arranged on the fixing end 7 and is arranged on one side far away from the bolt 6, and the operation knob 9 is arranged on the bolt 6 and is arranged on one side far away from the fixing end 7. Specifically, the bolt 6 is matched with the bolt on the inner wall of the horizontal through groove 4, so that the left-right translation of the bolt 6 can be realized in the process of rotating the bolt 6, and the bolt can still keep still under the condition of horizontal thrust after stopping rotating. The transverse ribs 8 on the fixed end 7 are used for embedding and limiting gaps between the threads of the drill bit, and because the threads are of an oblique structure, when the transverse ribs 8 are embedded into the gaps between the threads, one ends of the transverse ribs 8 are abutted against the upper edges of the thread gaps, and the other ends of the transverse ribs 8 are abutted against the lower edges of the thread gaps. Therefore, when the thread structure is rotated by external force, the transverse ribs 8 can be locked and limited, and the stable function is further improved.

The opposite surfaces of the bolt 6 and the fixed end 7 are provided with T-shaped cavities for accommodating the built-in connecting pieces 10, two ends of each built-in connecting piece 10 are provided with limiting parts 11, and the limiting parts 11 are embedded in the T-shaped cavities. Specifically, when moving the fixing member 5, the bolt 6 needs to be rotationally adjusted, and the bolt 6 needs to drive the fixing end 7 to horizontally move, so as to realize the effect of clamping or loosening the threads of the drill bit. The screw thread of the drill bit is limited to ensure that the transverse rib 8 is always in a transverse state, so that the built-in connecting piece 10 is arranged, the rotation of the fixed end 7 is not driven in the rotation process of the bolt 6, and the function of connecting and synchronously moving can be achieved.

The side wall of the fixed end 7 is provided with a limit edge 12 parallel to the axis of the horizontal through groove 4, and the horizontal through groove 4 is provided with a strip notch 401 capable of accommodating the limit edge 12 along the axial direction. Specifically, two strip gaps 401 corresponding to the top surface and the bottom surface are arranged in the horizontal through groove 4, and after the strip gaps 401 are formed, the functions of the threaded fit connection between the bolts 6 and the horizontal through groove 4 are not affected. The side wall of the fixed end 7 is provided with two limiting edges 12 corresponding to the two strip gaps 401, in the horizontal movement process of the fixed end 7, the limiting edges 12 move horizontally along the strip gaps 401, and the limiting edges 12 can limit the fixed end 7 not to rotate, so that the transverse edges 8 on the fixed end 7 are always in a horizontal state, and are mutually matched and clamped with the vertical screwed drill threads.

The transverse ribs 8 comprise 4 transverse ribs 8 which are longitudinally and equidistantly arranged, and the distance between the adjacent transverse ribs 8 is the same as the distance between the threads of the drill bit. Specifically, the equidistant transverse ribs 8 are the same as the thread pitch of the drill bit, so that the corresponding drill bit thread gap can be embedded simultaneously. The plurality of transverse ribs 8 can improve the limiting stability and prevent the single transverse rib 8 from sliding out of the thread under the action of huge external force.

The horizontal through grooves 4 are provided with two groups, and the two groups of horizontal through grooves 4 are oppositely arranged. Specifically, two groups of horizontal through grooves 4 are correspondingly arranged on the thread groove 3, and the fixation of the opposite sides is beneficial to the limiting effect.

The bottom surface of guide cylinder 1 has seted up several mud groove 13, and several mud groove 13 is the arc setting and communicates with circular passageway 2 respectively. Specifically, the guiding device can discharge the rock soil mud scraps generated in the rock soil drilling process through the mud discharging groove 13, so that the friction force of the contact surface of the guiding device and the soil layer is increased, and the mud discharging capacity of the device is also increased. The design of the arc-shaped mud discharging groove 13 is beneficial to the guide device to further improve the drilling capability in the rotating process.

The guide cylinder 1 is internally provided with slots 14 at the lower end of the thread groove 3, the slots 14 are provided with four groups, and the four groups of slots 14 are respectively communicated with the thread groove 3.

On the basis of the first embodiment, the present embodiment proposes a specific working principle of the guiding device for drilling.

The specific implementation principle flow is as follows:

when using, with guider and drill bit threaded connection, after screwing, in order to prevent rotatory in the course of the work and lead to droing, can carry out further fixed to guider and drill bit, easy operation is swift when promoting firm effect, need not with the help of other tools. Two screws 6 are screwed, the fixed end head 7 is pushed into the thread groove 3 of the guide cylinder 1, and as the drill bit is vertically connected with the guide device, the threads on the drill bit are of an inclined structure, and the length of the transverse strip edges 8 can be adaptively inserted between the gaps of the threads. When the transverse ribs 8 are embedded into the gaps between the threads, one end of the transverse ribs 8 abuts against the upper edge of the thread gaps, and the other end of the transverse ribs 8 abuts against the lower edge of the thread gaps. Therefore, when the thread structure is rotated by external force, the transverse ribs 8 can be locked and limited, and the stable function is further improved.

In the working process of the drill bit, the guide device can discharge rock soil and mud scraps generated in the rock soil drilling process through the mud discharging groove 13, so that the friction force of the contact surface of the guide device and the soil layer is increased, and the mud discharging capacity of the device is also increased. The design of the arc-shaped mud discharging groove 13 is beneficial to the guide device to further improve the drilling capability in the rotating process.

There are, of course, many other embodiments of the utility model that can be made by those skilled in the art in light of the above teachings without departing from the spirit or essential scope thereof, but that such modifications and variations are to be considered within the scope of the appended claims.

Claims

1. A guiding device for drilling, comprising a guiding cylinder (1), characterized in that: the utility model discloses a drill bit, including guide cylinder (1), circular passageway (2) that run through from top to bottom has been seted up to the inner chamber of guide cylinder (1), the upper end of circular passageway (2) is provided with thread groove (3) mutually supporting with the screw thread of drill bit, horizontal logical groove (4) with outside intercommunication have been seted up to the lateral wall of thread groove (3), be provided with fixed part (5) that can horizontal screw thread is adjusted in horizontal logical groove (4), the one end of fixed part (5) orientation guide cylinder (1) inner chamber is provided with can gomphosis in the horizontal arris (8) of drill bit screw thread, and the one end of fixed part (5) orientation guide cylinder (1) outside is provided with operating knob (9).

2. A drill guide according to claim 1, wherein: the fixing part (5) comprises a bolt (6) and a fixing end (7), the bolt (6) and the fixing end (7) are connected through a built-in connecting piece (10), the transverse rib (8) is arranged on the fixing end (7) and is far away from one side of the bolt (6), and the operation knob (9) is arranged on the bolt (6) and is far away from one side of the fixing end (7).

3. A drill guide according to claim 2, wherein: the T-shaped cavity for accommodating the built-in connecting piece (10) is arranged on the opposite surface of the bolt (6) and the fixed end (7), limiting parts (11) are arranged at two ends of the built-in connecting piece (10), and the limiting parts (11) are embedded in the T-shaped cavity.

4. A drill guide according to claim 2, wherein: the side wall of the fixed end head (7) is provided with a limiting edge (12) parallel to the axis of the horizontal through groove (4), and the horizontal through groove (4) is provided with a strip notch (401) capable of accommodating the limiting edge (12) along the axial direction.

5. A drill guide according to claim 1, wherein: the transverse ribs (8) comprise 4 transverse ribs (8) which are longitudinally and equidistantly arranged, and the distance between every two adjacent transverse ribs (8) is the same as the distance between the threads of the drill bit.

6. A drill guide according to claim 1, wherein: the horizontal through grooves (4) are provided with two groups, and the two groups of horizontal through grooves (4) are oppositely arranged.

7. A drill guide according to claim 1, wherein: the bottom surface of the guide cylinder (1) is provided with a plurality of sludge discharge grooves (13), and the sludge discharge grooves (13) are arranged in an arc shape and are respectively communicated with the circular channel (2).

8. A drill guide according to claim 1, wherein: the guide cylinder (1) is internally provided with slots (14) at the lower end of the thread groove (3), the slots (14) are provided with four groups of slots, and the four groups of slots are respectively communicated with the thread groove (3).