CN219327524U

CN219327524U - Auxiliary releasing device for coalbed methane drilling

Info

Publication number: CN219327524U
Application number: CN202320351289.6U
Authority: CN
Inventors: 汤军; 王利斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-07-11
Anticipated expiration: 2033-03-01

Abstract

The utility model belongs to the technical field of coal bed gas well drilling, in particular to an auxiliary releasing device for coal bed gas well drilling, which comprises a drill rod, a fixing frame and slips, wherein power assemblies are respectively arranged on two sides of the fixing frame, each power assembly comprises two rotary tables, each rotary table is rotatably arranged on the inner side wall of the fixing frame through a shaft, and a first hydraulic cylinder is fixedly connected below each rotary table; according to the utility model, the first hydraulic cylinder pulls the drill rod to move upwards through the connecting rope so as to release the clamping work, when the drill rod is inclined, the second hydraulic cylinder pushes the rotary table to incline so as to keep the same horizontal plane with the drill rod, so that the inclined drill rod is pulled to release the clamping work, and the second driver drives the screw rod to rotate so that the support frame can prop against the ground, and further the support frame is supported when the inclined drill rod is pulled, so that the inclined collapse of the fixing frame is avoided.

Description

Auxiliary releasing device for coalbed methane drilling

Technical Field

The utility model relates to the technical field of coal bed gas well drilling, in particular to an auxiliary releasing device for coal bed gas well drilling.

Background

In the coal bed methane drilling operation, the coal bed methane well is generally about 1000m deep, so that a special drilling machine or a small-tonnage petroleum drilling machine is adopted for drilling operation, and the economy of the coal bed methane drilling operation is improved. Due to the particularity of the geological looseness of the coal bed methane drilling, the drilling sticking accident happens for a plurality of times. At present, the capacity of handling stuck drilling accidents is determined by the lifting capacity of a drilling machine, the lifting capacity of the drilling machine is high, and most stuck drilling is scrapped due to incapability of releasing stuck drilling because of small lifting capacity of a special drilling machine or a small-tonnage petroleum drilling machine, so that the loss is serious. If the large-load drilling machine is used for operation, the unlocking capacity is improved to some extent, but the comprehensive drilling benefit is poor.

The traditional Chinese patent with the publication number of CN217106918U discloses an auxiliary releasing device for coal bed methane drilling, which comprises a fixing frame positioned above a drilling platform, wherein a drill rod main body is arranged in the drilling platform, a plurality of moving mechanisms are arranged on the bottom surface of the fixing frame, drill rod slips for clamping the drill rod main body are arranged in the fixing frame, a plurality of hanging rings are arranged on the drill rod slips, power mechanisms with the same number as the hanging rings are arranged in the fixing frame, and the power mechanisms are used for driving the hanging rings and the drill rod slips to move upwards; the fixing frame is formed by welding a first semi-annular plate, an arc-shaped plate and a second semi-annular plate, and notches matched with the drill rod main body are formed in the first semi-annular plate and the second semi-annular plate. When a drill sticking accident occurs, the device is moved to a drilling platform, and then auxiliary stuck relief is carried out by using the device; when the tripping operation is completed, the drilling slip is detached from the drill rod main body, and then the device is removed from the drilling platform, so that the drilling operation is facilitated.

With respect to the above and related art, the inventors believe that there are often the following drawbacks: the device can carry out unlocking work on the drill rod through the power mechanism, and when the drill rod is obliquely driven into a coal seam, the device is inconvenient to pull the drill rod to carry out unlocking work, so that the universality is required to be further improved; therefore, a coal bed methane drilling auxiliary unclamping device is provided for solving the problems.

Disclosure of Invention

In order to overcome the defects of the prior art and solve the technical problems, the utility model provides an auxiliary stuck freeing device for coal bed methane drilling.

The technical scheme adopted for solving the technical problems is as follows: the utility model discloses an auxiliary unlocking device for coal bed methane drilling, which comprises a drill rod, a fixing frame and slips, wherein power assemblies are respectively arranged on two sides of the fixing frame, each power assembly comprises two rotary tables, each rotary table is rotatably arranged on the inner side wall of the fixing frame through a shaft, a first hydraulic cylinder is fixedly connected below each rotary table, an anti-toppling assembly is arranged on the side wall of each fixing frame, each anti-toppling assembly comprises two supporting frames, each supporting frame is obliquely and fixedly arranged on the side wall of each fixing frame, an alignment assembly is arranged at the top of each rotary table, each alignment assembly comprises a first driver, each first driver is fixedly arranged at the top of each rotary table, each first hydraulic cylinder pulls the drill rod to move upwards through a connecting rope so as to unlock, and when the drill rod is inclined, each second hydraulic cylinder pushes the rotary table to incline, the same horizontal plane with the drill rod is kept, and therefore the inclined drill rod is pulled to unlock.

Preferably, the pulley is rotationally connected to the upper portion of the rotary table, the driving end of the first hydraulic cylinder is fixedly connected with the connecting rope, the connecting rope penetrates through the pulley and is fixedly connected with the slips, and the first hydraulic cylinder pulls the drill rod to move upwards through the connecting rope.

Preferably, the power assembly further comprises two hydraulic cylinders II, the hydraulic cylinders II are rotatably arranged on the side wall of the fixing frame, the driving ends of the hydraulic cylinders II are rotatably connected with the rotary table, when the drill rod is inclined, the rotary table is pushed to incline through the hydraulic cylinders II, the hydraulic cylinders II and the drill rod are kept at the same horizontal plane, and then the inclined drill rod is pulled to release the clamp.

Preferably, the support frame comprises an upper connecting frame and a lower connecting frame, and the upper connecting frame and the lower connecting frame are connected in a sliding manner.

Preferably, the lower part fixedly connected with driver two of link, driver two's drive end fixedly connected with lead screw, and lead screw and last link threaded connection drive the lead screw through driver two and rotate and make the support frame can support ground, and then support when pulling the drilling rod of slope, avoid the mount slope to collapse.

Preferably, the drive end fixedly connected with screw thread telescopic link of driver one, the one end fixedly connected with V-arrangement alignment frame that the screw thread telescopic link kept away from driver one, the both sides of alignment frame are fixedly connected with guide arm respectively, and the guide arm runs through the revolving stage and extends to outside, drives the alignment frame through driving a rotatory flexible drive of screw thread telescopic link and supports the drilling rod, and then removes the position of mount, makes the drilling rod keep power component's center department, makes the drilling rod both sides draw the even and vertical upward movement of power, improves the effect of unclamping.

Preferably, the lateral wall fixedly connected with a plurality of electric putter of mount, electric putter's drive end fixedly connected with universal wheel drives the universal wheel through electric putter and goes up and down, and then conveniently removes or place the mount.

The utility model has the advantages that:

1. according to the utility model, the first hydraulic cylinder pulls the drill rod to move upwards through the connecting rope so as to release the clamping work, when the drill rod is inclined, the second hydraulic cylinder pushes the rotary table to incline so as to keep the same horizontal plane with the drill rod, so that the inclined drill rod is pulled to release the clamping work, and the second driver drives the screw rod to rotate so that the support frame can prop against the ground, and further the support frame is supported when the inclined drill rod is pulled, so that the inclined collapse of the fixing frame is avoided.

2. According to the utility model, the alignment frame is driven to prop against the drill rod by driving the threaded telescopic rod to rotate and stretch, so that the position of the fixing frame is moved, the drill rod is enabled to keep the center of the power assembly, the tension force on two sides of the drill rod is enabled to be uniform and vertically upwards moved, and the unlocking effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side view of FIG. 1 in accordance with the present utility model;

FIG. 3 is a schematic diagram of a power assembly of the present utility model;

FIG. 4 is a schematic view of the structure A of the present utility model;

FIG. 5 is a schematic view of the anti-toppling component of the present utility model.

In the figure: 1. a drill rod; 2. a fixing frame; 3. a slip; 4. a power assembly; 41. a rotary table; 42. a first hydraulic cylinder; 43. a pulley; 44. a connecting rope; 45. a second hydraulic cylinder; 5. an anti-toppling assembly; 51. a support frame; 52. a second driver; 53. a screw rod; 511. an upper connecting frame; 512. a lower connecting frame; 6. an alignment assembly; 61. a first driver; 62. a threaded telescopic rod; 63. an alignment rack; 64. a guide rod; 7. an electric push rod; 8. and a universal wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an auxiliary tripping device for coalbed methane drilling comprises a drill rod 1, a fixing frame 2 and slips 3, wherein power assemblies 4 are respectively arranged on two sides of the fixing frame 2, each power assembly 4 comprises two rotary tables 41, each rotary table 41 is rotatably arranged on the inner side wall of the fixing frame 2 through a shaft, a first hydraulic cylinder 42 is fixedly connected below each rotary table 41, an anti-toppling component 5 is arranged on the side wall of each fixing frame 2, each anti-toppling component 5 comprises two supporting frames 51, each supporting frame 51 is obliquely and fixedly arranged on the side wall of the corresponding fixing frame 2, an alignment component 6 is arranged at the top of each rotary table 41, each alignment component 6 comprises a first driver 61, each first driver 61 is fixedly arranged at the top of each rotary table 41, each first hydraulic cylinder 42 pulls the drill rod 1 to move upwards through a connecting rope 44 so as to perform tripping operation, and when the drill rod 1 is inclined, each rotary table 41 is pushed by the second hydraulic cylinders 45 to be inclined to keep the same horizontal plane with the drill rod 1 so as to perform pulling tripping operation on the inclined drill rod 1.

The pulley 43 is rotatably connected above the rotary table 41, the connecting rope 44 is fixedly connected with the driving end of the first hydraulic cylinder 42, the connecting rope 44 penetrates through the pulley 43 and is fixedly connected with the slips 3, and the first hydraulic cylinder 42 pulls the drill rod 1 to move upwards through the connecting rope 44.

The power assembly 4 further comprises two hydraulic cylinders II 45, the hydraulic cylinders II 45 are rotatably arranged on the side wall of the fixing frame 2, the driving end of each hydraulic cylinder II 45 is rotatably connected with the rotary table 41, when the drill rod 1 is inclined, the rotary table 41 is pushed to incline through the hydraulic cylinders II 45, the same horizontal plane is kept with the drill rod 1, and then the inclined drill rod 1 is pulled to release the clamp.

The support frame 51 includes an upper link 511 and a lower link 512, and the upper link 511 and the lower link 512 are slidably connected.

The lower part of the lower connecting frame 512 is fixedly connected with a second driver 52, the driving end of the second driver 52 is fixedly connected with a screw rod 53, the screw rod 53 is in threaded connection with the upper connecting frame 511, and the second driver 52 drives the screw rod 53 to rotate so that the support frame 51 can prop against the ground, and further the inclined drill rod 1 is supported when being pulled, so that the inclined collapse of the fixed frame 2 is avoided.

The drive end fixedly connected with screw telescopic link 62 of driver one 61, the screw telescopic link 62 keeps away from the one end fixedly connected with V-arrangement alignment frame 63 of driver one 61, the both sides of alignment frame 63 fixedly connected with guide arm 64 respectively, and guide arm 64 runs through revolving stage 41 and extends to outside, drive alignment frame 63 to support drilling rod 1 through the rotatory flexible drive of drive screw telescopic link 62, and then remove the position of mount 2, make drilling rod 1 keep power component 4's center department, make drilling rod 1 both sides tensile even and the vertical upward movement of force, improve the effect of unclamping.

The lateral wall fixedly connected with a plurality of electric putter 7 of mount 2, electric putter 7's drive end fixedly connected with universal wheel 8 drives universal wheel 8 through electric putter 7 and goes up and down, and then conveniently removes or place mount 2.

According to the working principle, the first hydraulic cylinder 42 pulls the drill rod 1 to move upwards through the connecting rope 44 so as to release the clamping, and when the drill rod 1 tilts, the second hydraulic cylinder 45 pushes the rotary table 41 to tilt so as to keep the same horizontal plane with the drill rod 1, so that the tilted drill rod 1 is pulled to release the clamping;

the screw rod 53 is driven to rotate by the driver II 52 so that the supporting frame 51 can prop against the ground, and further the inclined drill rod 1 is supported when being pulled, so that the inclined collapse of the fixed frame 2 is avoided;

the alignment frame 63 is driven to prop against the drill rod 1 by driving the threaded telescopic rod 62 to rotate and stretch, so that the position of the fixing frame 2 is moved, the drill rod 1 is kept at the center of the power assembly 4, the tension forces on two sides of the drill rod 1 are uniform and vertically upwards moved, and the unclamping effect is improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a supplementary unclamping device of coalbed methane drilling, includes drilling rod (1), mount (2) and slips (3), its characterized in that: the utility model discloses a rotary table, including fixing frame (2), including fixed frame (2), power component (4) are installed respectively to both sides of fixed frame (2), power component (4) include two revolving stages (41), revolving stage (41) are installed at the inside wall of fixed frame (2) through the axle rotation, the below fixedly connected with pneumatic cylinder (42) of revolving stage (41), prevent empting subassembly (5) are installed to the lateral wall of fixed frame (2), prevent empting subassembly (5) including two support frames (51), support frame (51) slope fixed mounting is at the lateral wall of fixed frame (2), alignment subassembly (6) are installed at the top of revolving stage (41), alignment subassembly (6) include driver one (61), driver one (61) fixed mounting is at the top of revolving stage (41).

2. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the pulley (43) is rotationally connected to the upper portion of the rotary table (41), the connecting rope (44) is fixedly connected to the driving end of the first hydraulic cylinder (42), and the connecting rope (44) penetrates through the pulley (43) and is fixedly connected with the slips (3).

3. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the power assembly (4) further comprises two second hydraulic cylinders (45), the second hydraulic cylinders (45) are rotatably mounted on the side walls of the fixing frame (2), and the driving ends of the second hydraulic cylinders (45) are rotatably connected with the rotary table (41).

4. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the supporting frame (51) comprises an upper connecting frame (511) and a lower connecting frame (512), and the upper connecting frame (511) and the lower connecting frame (512) are connected in a sliding mode.

5. The auxiliary releasing device for coal bed methane drilling as recited in claim 4, wherein: the lower part of the lower connecting frame (512) is fixedly connected with a second driver (52), the driving end of the second driver (52) is fixedly connected with a screw rod (53), and the screw rod (53) is in threaded connection with the upper connecting frame (511).

6. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the driving end of the first driver (61) is fixedly connected with a threaded telescopic rod (62), one end, away from the first driver (61), of the threaded telescopic rod (62) is fixedly connected with a V-shaped alignment frame (63), two sides of the alignment frame (63) are respectively fixedly connected with a guide rod (64), and the guide rods (64) penetrate through the rotary table (41) and extend to the outside.

7. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the side wall of mount (2) fixedly connected with a plurality of electric putter (7), the drive end fixedly connected with universal wheel (8) of electric putter (7).