CN214997445U

CN214997445U - Well drilling drag reduction acceleration tool for large inclined well

Info

Publication number: CN214997445U
Application number: CN202120093395.XU
Authority: CN
Inventors: 周大维; 侯立东; 王德刚; 冯炜
Original assignee: Deep Blue Tianjin Intelligent Manufacturing Co ltd
Current assignee: Deep Blue Tianjin Intelligent Manufacturing Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-12-03
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a drilling drag reduction and acceleration tool for a large inclined well, which comprises a sleeve and a screw rod, wherein a drill bit seat is arranged below the sleeve, a drill bit is arranged below the drill bit seat, a drill string and a bearing seat are arranged inside the sleeve, the drill string is positioned at the middle position of the bearing seat, a bearing is arranged inside the bearing seat, two ends of the bearing seat are fixedly welded with fixed blocks, the fixed blocks and the sleeve are fixedly connected through the screw rod, hidden holes are arranged on the fixed blocks, the bearing is provided with three bearings, the three bearings are distributed at equal intervals, the device can install the bearing inside the sleeve through the bearing seat, the drill string can not be attached to the inner wall of the sleeve due to the limitation of the bearing in the large inclined drilling process, only can be attached to the inner surface wall of the bearing, and the bearing can rotate along with the drilling tool when the drilling tool rotates, the friction can not be generated, the large friction torque is avoided, and the damage to the drilling tool and the casing pipe is easily caused.

Description

Well drilling drag reduction acceleration tool for large inclined well

Technical Field

The utility model belongs to the technical field of the well drilling, concretely relates to well drilling drag reduction acceleration tool of highly inclined shaft.

Background

Drilling is the process of drilling a formation into a cylindrical borehole having a depth using mechanical equipment. Rock is broken by the cutting or grinding action produced by the rotation of the drill bit, which can be divided into a stunning and a rotary drill, depending on the manner of breaking the rock and the type of tool used. Is currently the most common method of drilling. The drilling speed is faster than that of a dead drill, and complex conditions such as well collapse, blowout and the like are easy to treat. According to the power transmission mode, the rotary drill can be divided into a rotary disk drill and an underground power drill: the rotary table drill is provided with a rotary table at the wellhead of the drill floor, the center part of the rotary table is provided with a square hole, a square drill rod at the upper end of a drill column penetrates through the square hole, the drill column and a drill bit are connected with the square drill rod in a downward mode, and the drill column and the drill bit are driven to rotate together to crush rocks when the rotary table is driven by power. The underground power drill drives the drill bit to break rock by using the underground power drilling tool, and the drill stem does not rotate during drilling, so that the underground power drill has small abrasion and long service life and is particularly suitable for drilling a directional well. The underground power drill comprises a turbine drill, a screw drill, an electric drill and the like.

In the prior art, in the large-inclination drilling process, the drilling tool is easy to attach to the inner surface wall of the casing because the drilling tool is heavy in weight, so that the drilling tool and the inner surface wall of the casing generate large friction, and the drilling tool and the casing are easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a big inclined shaft well drilling drag reduction acceleration tool can install the bearing in telescopic inside through the bearing frame, and the drilling string is at big inclination well drilling in-process, can not laminate on telescopic inner wall owing to the restriction that receives the bearing, only can laminate on the interior table wall of bearing, and the drilling tool together rotates can be followed to the bearing when the drilling tool rotates, can not produce the friction, and it is great to have avoided the friction moment of torsion, causes drilling tool and sheathed tube damage easily.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model relates to a big inclined shaft well drilling drag reduction acceleration instrument, including sleeve and screw rod, telescopic below is provided with the drill bit seat, the drill bit is installed to the below of drill bit seat, telescopic inside is provided with drilling string and bearing frame, the drilling string is located the intermediate position department of bearing frame, the internally mounted of bearing frame has the bearing, the equal welded fastening in both ends of bearing frame has the fixed block, fixed block and sleeve pass through screw rod fixed connection, seted up on the fixed block and hidden the hole.

As an optimal technical scheme of the utility model, the drilling string is the cylinder structure, the drilling string is kept away from the one end and the outside rig fixed connection of drill bit seat.

As an optimal technical scheme of the utility model, the bearing is provided with threely altogether, and three bearing is at telescopic inside equidistance distribution.

As an optimal technical scheme of the utility model, drilling string and drill bit seat pass through bolt fixed connection, the drill bit seat is the cylinder structure.

As an optimal technical scheme of the utility model, bearing frame and bearing looks adaptation, the interior table wall of bearing is provided with anti-skidding mechanism.

As an optimal technical scheme of the utility model, telescopic inside is provided with the guide tube, guide tube and drill bit seat fixed connection, and the drill bit seat has seted up the liquid outlet.

As an optimized technical scheme of the utility model, the thickness of fixed block is two centimetres.

Compared with the prior art, the beneficial effects of the utility model are that: this device can install the bearing in telescopic inside through the bearing frame, and the drilling string is at big inclination well drilling in-process, because the restriction that receives the bearing can not laminate on telescopic inner wall, only can laminate on the interior table wall of bearing, and the drilling tool rotates the time the bearing can follow the drilling tool and rotate together, can not produce the friction, and it is great to have avoided the friction moment of torsion, causes the damage of drilling tool and sheathed tube easily.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic top view of the bearing seat of the present invention;

fig. 3 is a schematic side view of the fixing block of the present invention.

In the figure: 1. a drill string; 2. a sleeve; 3. a drill bit; 4. a bit seat; 5. a bearing seat; 6. a fixed block; 7. a bearing; 8. a screw; 9. the hole is hidden.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, the utility model relates to a big inclined shaft well drilling drag reduction speeding up tool, including sleeve 2 and screw rod 8, the below of sleeve 2 is provided with drill bit seat 4, drill bit 3 is installed to the below of drill bit seat 4, the inside of sleeve 2 is provided with drill string 1 and bearing frame 5, drill string 1 is located the intermediate position department of bearing frame 5, the internally mounted of bearing frame 5 has bearing 7, the equal welded fastening in both ends of bearing frame 5 has fixed block 6, fixed block 6 and sleeve 2 pass through screw rod 8 fixed connection, hidden hole 9 has been seted up on fixed block 6.

Drill string 1 is the cylinder structure, drill string 1 keeps away from drill bit seat 4's one end and outside rig fixed connection, bearing 7 is provided with threely altogether, and three bearing 7 distributes at sleeve 2's inside equidistance, drill string 1 and drill bit seat 4 pass through bolt fixed connection, drill bit seat 4 is the cylinder structure, bearing frame 5 and bearing 7 looks adaptation, the interior table wall of bearing 7 is provided with anti-skidding mechanism, sleeve 2's inside is provided with the drain cylinder, drain cylinder and drill bit seat 4 fixed connection, and the liquid outlet has been seted up on drill bit seat 4, the thickness of fixed block 6 is two centimetres.

Specifically, the utility model discloses during the use, bearing frame 5 can install bearing 7 in the inside of sleeve 2, drilling string 1 is at big inclination well drilling in-process, can not laminate on sleeve 2's inner wall owing to the restriction that receives bearing 7, only can laminate on bearing 7's interior table wall, bearing 7 can follow the drilling tool and together rotate when the drilling tool rotates, can not produce the friction, it is great to have avoided the friction moment of torsion, cause the damage of drilling tool and sleeve pipe 2 easily, fixed block 6 is convenient for fix bearing frame 5 in the inside of sleeve pipe 2 through screw rod 8, hidden hole 9 on fixed block 6 can hide screw rod 8, prevent that screw rod 8 from exposing outside, hit drilling string 1 easily.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a big inclined shaft well drilling drag reduction speeding instrument, includes sleeve (2) and screw rod (8), its characterized in that, the below of sleeve (2) is provided with drill bit seat (4), drill bit (3) are installed to the below of drill bit seat (4), the inside of sleeve (2) is provided with drilling string (1) and bearing frame (5), drilling string (1) is located the intermediate position department of bearing frame (5), the internally mounted of bearing frame (5) has bearing (7), the equal welded fastening in both ends of bearing frame (5) has fixed block (6), fixed block (6) and sleeve (2) pass through screw rod (8) fixed connection, hidden hole (9) have been seted up on fixed block (6).

2. A drag reduction and acceleration tool for drilling of highly inclined wells according to claim 1, characterized in that the drill string (1) is of a cylindrical structure, and the end of the drill string (1) far away from the drill bit seat (4) is fixedly connected with an external drilling machine.

3. A well drilling drag reduction acceleration tool for large inclined wells according to claim 1, characterized in that, the number of bearings (7) is three, and the three bearings (7) are distributed equidistantly inside the sleeve (2).

4. A drag reduction and acceleration tool for drilling of highly inclined wells according to claim 1, characterized in that the drill string (1) and the drill bit seat (4) are fixedly connected by bolts, and the drill bit seat (4) is a cylindrical structure.

5. The well drilling drag reduction and acceleration tool for the large inclined well is characterized in that the bearing seat (5) is matched with the bearing (7), and the inner surface wall of the bearing (7) is provided with an anti-skidding mechanism.

6. The large inclined well drilling drag reduction and acceleration tool according to claim 1, characterized in that a liquid guide cylinder is arranged inside the sleeve (2), the liquid guide cylinder is fixedly connected with the drill bit seat (4), and a liquid outlet is arranged on the drill bit seat (4).

7. The tool for drilling, drag reduction and acceleration of a large inclined well according to claim 1, characterized in that the thickness of the fixed block (6) is two centimeters.