Well drilling speed increasing device with composite drill bit

Abstract

The utility model belongs to the technical field of well drilling drill bits, and particularly relates to a well drilling speed increasing device with a composite drill bit, which comprises a drill rod, a drill body and an auxiliary device, the drill body is positioned under the drill rod, and the inner walls of the drill rod and the drill body are in threaded connection with a plurality of positioning pins; a plurality of auxiliary devices are arranged on the surface of the drill body and comprise sliding grooves, the sliding grooves are formed in the surface of the drill body, sliding blocks are slidably connected to the inner walls of the sliding grooves of the drill body, fixing columns are fixedly connected to the side walls of the sliding blocks, a plurality of protruding points are fixedly connected to the surfaces of the fixing columns, and protection devices are arranged at the positions, close to the positioning pins, of the surface of the drill body. The protection device comprises two elastic belts, the upper surfaces of the two elastic belts are fixedly connected with the surface of the drill body, and the surfaces of the two elastic belts are fixedly connected with protection blocks; by arranging the whole device, a drill body can be assisted in well drilling, meanwhile, the positions of the fixing columns and the protruding points can be adjusted according to using requirements, and therefore different using requirements can be met.

Description

Technical Field

[0001] This utility model relates to the field of drilling bit technology, specifically a drilling speed-up device with a composite drill bit. Background Technology

[0002] Drill bits are core tools in fields such as oil and gas exploration and geological drilling. Their technological evolution is closely related to market demand. The main types include: roller cone bits, diamond bits, PDC bits, etc. Roller cone bits break rocks by generating impact, crushing and shearing effects through revolution and rotation, and are suitable for various formations, especially hard formations.

[0003] Regarding the above and existing related technologies: In drilling operations, drilling bits are a crucial drilling tool. To facilitate the use of drilling bits, composite drilling bits are often used. However, since most composite drilling bits lack adjustable range capabilities, and the actual needs of drilling vary, the problem of mismatch between the drilling bit and the requirements can easily arise when using drilling bits. Therefore, to address the above problems, a drilling speed-up device with a composite drilling bit is proposed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The drilling speed-enhancing device with a composite drill bit of this utility model includes a drill rod, a drill body, and auxiliary devices. The drill body is located directly below the drill rod, and multiple positioning pins are threadedly connected to the inner walls of the drill rod and the drill body. Multiple auxiliary devices are provided on the surface of the drill body. Each auxiliary device includes a slide groove, which is formed on the surface of the drill body. A slider is slidably connected to the inner wall of the slide groove, and a fixed post is fixedly connected to the side wall of the slider. Multiple protrusions are fixedly connected to the surface of the fixed post. The slider slides on the inner wall of the slide groove, and the drill body is used after the fixed post slides to a suitable position. When the drill body rotates, it will drive the fixed post and protrusions to rotate. By setting the slide groove, slider, fixed post, and protrusions, the use of the drill body can be assisted, thereby increasing the drilling speed.

[0006] Preferably, a movable block is fixedly connected to the upper surface of the slider, and a threaded rod is rotatably connected to the inner surface of the drill body near the movable block. The surface of the threaded rod is threadedly connected to the inner wall of the movable block. The threaded rod drives the movable block to move, and the movable block drives the slider to slide. By setting the threaded rod and the movable block, the position of the slider can be easily moved.

[0007] Preferably, a knob is fixedly connected to the side wall of the threaded rod, and a rotating rod is inserted into the inner surface of the knob. Rotating the rotating rod causes the knob to rotate, and the knob causes the threaded rod to rotate. The threaded rod can be easily operated by setting the knob.

[0008] Preferably, the surface of the drill body is provided with a placement groove, and the threaded rod is inserted into the inner surface of the placement groove of the drill body. When the threaded rod rotates, the threaded rod rotates on the inner wall of the placement groove. The placement groove facilitates the drill body to store the threaded rod.

[0009] Preferably, a sealing plug is inserted into the inner surface of the placement groove of the drill body. The sealing plug is inserted into the inner surface of the knob. After the knob is used, the sealing plug is pushed to insert into the inner wall of the placement groove and the inner wall of the knob. By setting the sealing plug, the situation of debris entering the inner surface of the placement groove can be reduced.

[0010] Preferably, a protective device is provided on the surface of the drill body near the positioning pin. The protective device includes two elastic bands, the upper surfaces of the two elastic bands are fixedly connected to the surface of the drill body, and a protective block is fixedly connected to the surface of the two elastic bands. The protective block is sleeved on the surface of the knob, and the elastic bands drive the protective block to move. The protective block is sleeved on the surface of the positioning pin. The setting of the elastic bands and the protective block can protect the positioning pin and reduce the contact wear between the positioning pin and the debris.

[0011] Preferably, the surface of the protective block is provided with a storage groove, the positioning pin is inserted into the inner surface of the storage groove of the protective block, and a pull strap is fixedly connected to the bottom end of the protective block. When in use, the protective block will be placed on the surface of the knob through the storage groove. The storage groove makes it convenient for the protective block to be placed on the surface of the positioning pin.

[0012] The advantages of this utility model are:

[0013] 1. When the drill body needs to be used, the rotating rod is inserted into the inner surface of the knob, and then the rotating rod is rotated to drive the knob to rotate. The knob drives the threaded rod to rotate, and the threaded rod and the knob rotate on the inner surface of the placement groove. The threaded rod drives the moving block and the slider to slide. The slider slides on the inner wall of the groove, and the slider drives the fixed column and the protrusion to move. After the fixed column moves to the appropriate position, the sealing plug is inserted into the inner surface of the placement groove. At the same time, the sealing plug is also inserted into the inner surface of the knob, and then drilling operations are carried out. By setting up the whole device, it can assist the drill body in drilling, and at the same time, the position of the fixed column and the protrusion can be adjusted according to the usage requirements, so as to adapt to different usage requirements.

[0014] 2. When the drill body needs to be used, the pull belt is pulled to move the guard block. The guard block causes the elastic band to stretch. After the guard block moves to the appropriate position, the positioning pin is rotated to the inner wall of the drill body and drill rod. When the pull belt is released, the elastic band will rebound. The guard block will be placed on the surface of the positioning pin through the storage groove. By setting the entire device, the positioning pin can be protected, reducing the situation where the positioning pin is worn by contact with debris. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the drill pipe in a drilling speed-up device with a composite drill bit;

[0017] Figure 2 In a drilling speed-up device with a composite drill bit Figure 1 A schematic diagram of the structure at point A;

[0018] Figure 3 In a drilling speed-up device with a composite drill bit Figure 1 A schematic diagram of the structure at point B;

[0019] Figure 4 A schematic diagram of the drill body structure from below in a drilling speed-up device with a composite drill bit;

[0020] Figure 5 In a drilling speed-up device with a composite drill bit Figure 4 A schematic diagram of the structure at point C.

[0021] In the diagram: 1. Drill rod; 2. Drill body; 3. Positioning pin; 4. Auxiliary device; 41. Slide groove; 42. Slider; 43. Fixed column; 44. Protrusion; 45. Moving block; 46. Threaded rod; 47. Knob; 48. Placement groove; 49. Sealing plug; 5. Protective device; 51. Elastic band; 52. Protective block; 53. Storage groove; 54. Pull belt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5As shown, a drilling speed-enhancing device with a composite drill bit includes a drill pipe 1, a drill body 2, and auxiliary devices 4. The drill body 2 is located directly below the drill pipe 1. Multiple positioning pins 3 are threadedly connected to the inner walls of the drill pipe 1 and the drill body 2. Multiple auxiliary devices 4 are provided on the surface of the drill body 2. Each auxiliary device 4 includes a groove 41, which is formed on the surface of the drill body 2. A slider 42 is slidably connected to the inner wall of the groove 41 of the drill body 2. A fixing post 43 is fixedly connected to the side wall of the slider 42. Multiple protrusions 44 are fixedly connected to the surface of the fixing post 43. During operation, pushing the fixing post 43 causes the slider 42 to slide. The slider 42 slides on the inner wall of the groove 41. After the fixing post 43 slides to the appropriate position, the drill body 2 is used. When the drill body 2 rotates, it will drive the fixing post 43 and the protrusions 44 to rotate. By setting the groove 41, slider 42, fixing post 43, and protrusions 44, the use of the drill body 2 can be assisted, thereby increasing the drilling speed.

[0024] A movable block 45 is fixedly connected to the upper surface of the slider 42. A threaded rod 46 is rotatably connected to the inner surface of the drill body 2 near the movable block 45. The surface of the threaded rod 46 is threadedly connected to the inner wall of the movable block 45. During operation, the threaded rod 46 is rotated to rotate on the inner wall of the movable block 45. The threaded rod 46 drives the movable block 45 to move, and the movable block 45 drives the slider 42 to slide. By setting the threaded rod 46 and the movable block 45, the position of the slider 42 can be easily moved.

[0025] A knob 47 is fixedly connected to the side wall of the threaded rod 46, and a rotating rod is inserted into the inner surface of the knob 47. During operation, the rotating rod is inserted into the inner wall of the knob 47, and then the rotating rod is rotated to make the knob 47 rotate. The knob 47 drives the threaded rod 46 to rotate. The knob 47 makes it easy to operate the threaded rod 46.

[0026] The surface of the drill body 2 is provided with a placement groove 48, and the threaded rod 46 is inserted into the inner surface of the placement groove 48 of the drill body 2. During operation, the threaded rod 46 rotates on the inner wall of the placement groove 48, and the placement groove 48 facilitates the drill body 2 to store the threaded rod 46.

[0027] A sealing plug 49 is inserted into the inner surface of the placement groove 48 of the drill body 2. The sealing plug 49 is inserted into the inner surface of the knob 47. During operation, the sealing plug 49 is pushed to insert into the inner wall of the placement groove 48 and the inner wall of the knob 47. By setting the sealing plug 49, the situation of debris entering the inner surface of the placement groove 48 can be reduced.

[0028] A protective device 5 is provided on the surface of the drill body 2 near the positioning pin 3. The protective device 5 includes two elastic bands 51, the upper surfaces of which are fixedly connected to the surface of the drill body 2. A protective block 52 is fixedly connected to the surface of the two elastic bands 51, and the protective block 52 is fitted onto the surface of the knob 47. During operation, the protective block 52 is pulled to stretch the elastic bands 51. Then, the positioning pin 3 is used. After the positioning pin 3 is installed, the elastic bands 51 will contract when the protective block 52 is released. The elastic bands 51 will move the protective block 52, and the protective block 52 will fit onto the surface of the positioning pin 3. The setting of the elastic bands 51 and the protective block 52 can protect the positioning pin 3 and reduce the contact wear between the positioning pin 3 and the debris.

[0029] The surface of the protective block 52 is provided with a storage groove 53, and the positioning pin 3 is inserted into the inner surface of the storage groove 53 of the protective block 52. The bottom end of the protective block 52 is fixedly connected with a pull strap 54. When working, the pull strap 54 is pulled to move the protective block 52. When in use, the protective block 52 will be placed on the surface of the knob 47 through the storage groove 53. The storage groove 53 makes it easy for the protective block 52 to be placed on the surface of the positioning pin 3.

[0030] Working principle: When drill body 2 is needed, the rotating rod is inserted into the inner surface of knob 47, and then the rotating rod is rotated to drive knob 47 to rotate. Knob 47 drives threaded rod 46 to rotate. Threaded rod 46 and knob 47 rotate on the inner surface of placement groove 48. Threaded rod 46 drives moving block 45 and slider 42 to slide. Slider 42 slides on the inner wall of groove 41. Slider 42 drives fixed post 43 and protrusion 44 to move. After fixed post 43 moves to the appropriate position, sealing plug 49 is inserted into the inner surface of placement groove 48. At the same time, sealing plug 49 is also inserted into the inner surface of knob 47. Then drilling operations are performed. This device can assist the drill body 2 in drilling, and can also adjust the position of the fixed column 43 and the protrusion 44 according to the usage requirements, so as to adapt to different usage needs. When the drill body 2 needs to be used, pull the pull belt 54 to move the guard block 52. The guard block 52 drives the elastic band 51 to stretch. After the guard block 52 moves to the appropriate position, rotate the positioning pin 3 to the inner wall of the drill body 2 and the drill rod 1. Then release the pull belt 54 and the elastic band 51 will rebound. The guard block 52 will be sleeved on the surface of the positioning pin 3 through the storage groove 53. By setting the entire device, the positioning pin 3 can be protected and the situation of the positioning pin 3 being worn by contact with debris can be reduced.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A drilling speed increasing device with a composite drill bit, comprising a drill rod (1), a drill body (2) and an auxiliary device (4), the drill body (2) is located directly below the drill rod (1), the inner wall of the drill rod (1) and the drill body (2) is threadedly connected with a plurality of positioning pins (3); characterized in that: The surface of the drill body (2) is provided with a plurality of auxiliary devices (4), the auxiliary devices (4) include a chute (41), the chute (41) is opened in the surface of the drill body (2), the inner wall of the chute (41) of the drill body (2) is slidably connected with a sliding block (42), the side wall of the sliding block (42) is fixedly connected with a fixed column (43), the surface of the fixed column (43) is fixedly connected with a plurality of convex points (44).

2. A well drilling rate of penetration enhancing device with a compound drill bit as claimed in claim 1, characterized in that: The upper surface of the sliding block (42) is fixedly connected with a moving block (45), the inner surface of the drill body (2) is rotatably connected with a threaded rod (46) near the moving block (45), and the surface of the threaded rod (46) is threadedly connected with the inner wall of the moving block (45).

3. A well drilling rate of penetration enhancing device with a compound drill bit as defined in claim 2, characterized in that: The side wall of the threaded rod (46) is fixedly connected with a knob (47), and the inner surface of the knob (47) is inserted with a rotating rod.

4. A well drilling rate of penetration enhancing device with a compound drill bit as defined in claim 3, characterized in that: The surface of the drill body (2) is provided with a placing groove (48), and the threaded rod (46) is inserted into the inner surface of the placing groove (48) of the drill body (2).

5. A well drilling rate of penetration enhancing device with a compound drill bit as defined in claim 4, characterized in that: The inner surface of the placing groove (48) of the drill body (2) is inserted with a sealing plug (49), and the sealing plug (49) is inserted into the inner surface of the knob (47).

6. A well drilling rate of penetration enhancing device with a compound drill bit as defined in claim 1, wherein: The surface of the drill body (2) is provided with a protection device (5) near the positioning pin (3), the protection device (5) includes two elastic belts (51), the upper surfaces of the two elastic belts (51) and the surface of the drill body (2) are fixedly connected, the surfaces of the two elastic belts (51) are fixedly connected with a guard block (52), and the guard block (52) is sleeved on the surface of the knob (47).

7. A well drilling rate of penetration enhancing device with a compound drill bit as defined in claim 6, characterized in that: The surface of the guard block (52) is provided with a receiving groove (53), the positioning pin (3) is inserted into the inner surface of the receiving groove (53) of the guard block (52), and the bottom end of the guard block (52) is fixedly connected with a pull belt (54).

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