CN220621805U - Auxiliary releasing device for coalbed methane drilling - Google Patents

Abstract

The utility model discloses an auxiliary unlocking device for coal bed methane drilling, which belongs to the technical field of coal bed exploitation apparatuses and comprises two unlocking assemblies, wherein the two unlocking assemblies are connected through joints, each unlocking assembly comprises a lifting type moving structure, three movable plates are fixedly connected to an intrados of the lifting type moving structure, and notches with continuous bending shapes are formed in the movable plates. This auxiliary tripping device of coalbed methane well drilling through setting up over-and-under type movable structure, notch and hydraulic drive structure, over-and-under type movable structure drives the fly leaf motion, because the notch is the shape of buckling in succession for the notch can reciprocate extrusion hydraulic drive structure and carry out reciprocating motion, makes the connecting rod shake from top to bottom, makes the connecting rod shake the drilling rod slips from top to bottom reciprocally, and then can vibrate the drilling rod, has reduced operating procedure, and the cost is reduced, and through two semi-annular plates of bolted connection, does benefit to the dismantlement.

Description

Auxiliary releasing device for coalbed methane drilling

Technical Field

The utility model belongs to the technical field of coal seam exploitation apparatuses, and particularly relates to an auxiliary unlocking device for coal seam gas drilling.

Background

In the coal bed gas drilling operation, the coal bed gas well is generally about 1000m deep, so that a special drilling machine or a small-tonnage petroleum drilling machine is adopted for drilling operation, the economy of the coal bed gas drilling operation is improved, and drilling sticking accidents occur for a plurality of times due to the particularity of geological looseness of the coal bed gas drilling operation.

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.

The auxiliary stuck releasing device for the coal bed gas drilling is applied to the treatment of stuck drilling accidents of the coal bed gas field, and has the publication number of CN 201593388U. The hydraulic telescopic lifting system is characterized by mainly comprising a drilling platform, a hydraulic telescopic lifting system, a base and a drill pipe slip, wherein a drill pipe slip mounting hole is formed in the center of the drilling platform, and a drill pipe slip is arranged in the drill pipe slip mounting hole; a hydraulic telescopic lifting system is arranged between the drilling platform and the base, namely, the hydraulic telescopic lifting system is fixed on the upper part of the base, and the drilling platform is fixed on the upper part of the hydraulic telescopic lifting system. The effect is as follows: the device can effectively improve the stuck releasing capacity of the drilling machine, and can provide the maximum auxiliary lifting force of 100 tons on the basis of the original lifting capacity of the drilling machine, so that the capacity of the drilling machine for treating stuck accidents is improved.

However, this patent suffers from the following disadvantages:

firstly, the auxiliary unlocking device is required to be pre-installed on the drilling platform, and is inconvenient to detach from the drilling platform, so that certain influence is caused on normal drilling operation;

secondly, when the stuck drill is tighter, vibration equipment is additionally arranged for vibration treatment, so that the operation steps are increased, and the cost is increased;

in summary, it is of great importance to develop a new auxiliary stuck freeing device for drilling coal bed methane to solve the above problems.

Disclosure of Invention

(one) solving the technical problems

In order to overcome the defects of the prior art, the utility model provides the auxiliary unlocking device for the coal bed methane drilling, which solves the problems that the auxiliary unlocking device needs to be pre-installed on a drilling platform when the auxiliary unlocking device is used, the auxiliary unlocking device is inconvenient to detach from the drilling platform, certain influence is caused on normal drilling operation, and vibration equipment is additionally required to be installed for vibration treatment when the drilling is relatively tight, so that the operation steps are increased, and the cost is increased.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a supplementary device of unfreezing of coalbed methane drilling, includes the assembly of unfreezing, the quantity of the assembly of unfreezing is two, connects through the joint between two assemblies of unfreezing, the assembly of unfreezing includes lift type movable structure, fixedly connected with three fly leaf on lift type movable structure's the intrados, and offered the notch of the shape of buckling in succession on the fly leaf, the slip is equipped with hydraulic drive structure in the notch, and three hydraulic drive structure wears to establish to install on same half annular plate, and two semi annular plates pass through bolted connection, and the top fixedly connected with same connecting strip of three hydraulic drive structure.

As a further aspect of the utility model: the lifting type moving structure comprises two electric push rods and a movable strip, and the bottom ends of the two electric push rods are fixedly connected with the same arc-shaped seat.

As a further aspect of the utility model: the inner cambered surface of the movable strip is fixedly connected with the three movable plates, the two movable strips are spliced through the connector, two movable wheels are fixedly connected below the movable strip, and the lower surface of the movable strip is fixedly connected with two electric push rods.

As a further aspect of the utility model: the upper part of the arc-shaped seat is fixedly connected with two guide rods, the two movable plates respectively slide on the two guide rods, the top ends of the two guide rods are fixedly connected with the same arc-shaped strip, and the two arc-shaped strips are spliced through a joint.

As a further aspect of the utility model: the hydraulic driving structure comprises a cylinder body, the cylinder body is arranged on the semi-annular plate in a penetrating mode, a second piston rod is arranged in the cylinder body, and the second piston rod is fixedly connected with the connecting strip.

As a further aspect of the utility model: the inside of barrel is equipped with first piston rod, the one end fixedly connected with pulley of first piston rod, the pulley slides in the notch.

(III) beneficial effects

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

1. this auxiliary tripping device of coalbed methane well drilling through setting up over-and-under type movable structure, notch and hydraulic drive structure, over-and-under type movable structure drives the fly leaf motion, because the notch is the shape of buckling in succession for the notch can reciprocate extrusion hydraulic drive structure and carry out reciprocating motion, makes the connecting rod shake from top to bottom, makes the connecting rod shake the drilling rod slips from top to bottom reciprocally, and then can vibrate the drilling rod, has reduced operating procedure, and the cost is reduced, and through two semi-annular plates of bolted connection, does benefit to the dismantlement.

2. This auxiliary unclamping device of coalbed methane drilling, through setting up lift formula moving structure, electric putter contracts and drives movable strip downward movement for remove the wheel downward movement, owing to be equipped with two openings on the arc seat, make to remove the wheel and can pass smoothly and realize propping up the effect of unclamping the subassembly, make the removal of unclamping the subassembly comparatively convenient.

Drawings

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

FIG. 2 is a schematic view of a lifting structure according to the present utility model;

FIG. 3 is a schematic view showing a three-dimensional structure of a movable plate according to the present utility model;

FIG. 4 is a schematic view of a three-dimensional cross-sectional structure of a barrel according to the present utility model;

in the figure: 1. a card releasing assembly; 11. an arc-shaped seat; 12. a lifting type moving structure; 121. an electric push rod; 122. a movable bar; 123. a moving wheel; 13. an arc-shaped strip; 14. a guide rod; 15. a semi-annular plate; 16. a movable plate; 17. a hydraulic drive structure; 171. a second piston rod; 172. a cylinder; 173. a first piston rod; 174. a pulley; 18. a notch; 19. and (5) connecting strips.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

As shown in fig. 1-4, the present utility model provides a technical solution: the utility model provides a coalbed methane well drilling auxiliary unclamping device, including unclamping subassembly 1, the quantity of unclamping subassembly 1 is two, connect through the joint between two unclamping subassemblies 1, unclamping subassembly 1 includes lift type movable structure 12, lift type movable structure 12 includes two electric putter 121 and movable strip 122, the bottom fixedly connected with same arc seat 11 of two electric putter 121, the top fixedly connected with two guide bars 14 of arc seat 11, two movable plates 16 slide respectively on two guide bars 14, guide bar 14 can lead movable plate 16, make movable plate 16 can steadily slide, the top fixedly connected with same arc strip 13 of two guide bars 14, and connect through the joint between two arc strips 13, can play the effect that two arc strips 13 and two movable strips 122 realize the grafting connection through the joint, the intrados of movable strip 122 and three movable plate 16 fixed connection, and two movable strips 122 are pegged graft through the joint, the below fixedly connected with two movable wheels 123 of movable strip 122, the below of movable strip 122 and two electric putter 121 are connected with each other respectively, make movable wheel 123 move down smoothly, make the movable assembly 1 move downwards because of two electric putter 121 are equipped with the fixed connection of movable wheels 123, make the movement of opening downwards, make the unclamping subassembly move down easily;

three fly leaves 16 are fixedly connected with on the intrados of lift formula moving structure 12, and set up the notch 18 of continuous kink shape on fly leaf 16, the slip is equipped with hydraulic drive structure 17 in notch 18, hydraulic drive structure 17 includes barrel 172, the barrel 172 wears to establish and installs on half fly leaf 15, the inside of barrel 172 is equipped with second piston rod 171, second piston rod 171 and connecting rod 19 fixed connection, the inside of barrel 172 is equipped with first piston rod 173, the one end fixedly connected with pulley 174 of first piston rod 173, pulley 174 can reduce frictional force, and then can improve smoothness, pulley 174 slides in notch 18, three hydraulic drive structure 17 wears to establish and install on same half fly leaf 15, two half fly leaf 15 pass through bolted connection, and the top fixedly connected with same connecting rod 19 of three hydraulic drive structure 17, when fly leaf 16 upward movement, because notch 18 is continuous kink shape for notch 18 can reciprocal extrusion first piston rod 173 motion, then carry out reciprocating motion through hydraulic drive second piston rod 171, make shake connecting rod 19 reciprocal upper and lower connecting rod 19, make connecting rod 19 reciprocate, and vibration step can be reduced to the drilling rod 19, and then can be contacted down through shaking the drilling rod 19, step vibration well rod cost is reduced, and the step is followed by vibration rod is passed through to the slip, and the step is reduced.

The working principle of the utility model is as follows:

when unlocking, firstly, the two unlocking assemblies 1 are in butt joint, the two semi-ring plates 15 are in butt joint, then the two semi-ring plates 15 are connected through bolts, so that a drill rod is located in a space enclosed between the two semi-ring plates 15, a drill rod slip of the drill rod is erected on the connecting strip 19, at the moment, the electric push rod 121 is controlled to push the movable strip 122 to move upwards, the movable strip 122 drives the movable plate 16 to move, the movable plate 16 can realize reciprocating motion of the extrusion pulley 174 through the continuously bent notch 18, the pulley 174 pushes the first piston rod 173 to move, the second piston rod 171 is driven to move up and down through hydraulic pressure, the connecting strip 19 is driven to shake the drill rod slip reciprocally, the drill rod slip drives the drill rod to vibrate, and when the pulley 174 is contacted with the notch 18 downwards, the connecting strip 19 can lift the drill rod, so that unlocking operation is facilitated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.

Claims (6)

1. The utility model provides a supplementary unclamping device of coalbed methane drilling, includes unclamping subassembly (1), its characterized in that: the number of the unlocking assemblies (1) is two, the two unlocking assemblies (1) are connected through joints, each unlocking assembly (1) comprises a lifting moving structure (12), three movable plates (16) are fixedly connected to the intrados of each lifting moving structure (12), notches (18) with continuous bending shapes are formed in the movable plates (16), hydraulic driving structures (17) are arranged in the notches (18) in a sliding mode, the three hydraulic driving structures (17) penetrate through and are installed on the same half ring plate (15), the two half ring plates (15) are connected through bolts, and the same connecting strip (19) is fixedly connected to the top ends of the three hydraulic driving structures (17).

2. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the lifting type moving structure (12) comprises two electric push rods (121) and a movable strip (122), and the bottom ends of the two electric push rods (121) are fixedly connected with the same arc-shaped base (11).

3. The auxiliary releasing device for coal bed methane drilling as claimed in claim 2, wherein: the inner cambered surface of the movable strip (122) is fixedly connected with the three movable plates (16), the two movable strips (122) are spliced through connectors, two movable wheels (123) are fixedly connected below the movable strips (122), and the lower parts of the movable strips (122) are fixedly connected with the two electric push rods (121).

4. The auxiliary releasing device for coal bed methane drilling as claimed in claim 2, wherein: two guide rods (14) are fixedly connected to the upper portion of the arc-shaped base (11), two movable plates (16) slide on the two guide rods (14) respectively, the same arc-shaped strip (13) is fixedly connected to the top ends of the two guide rods (14), and the two arc-shaped strips (13) are connected through a connector in an inserting mode.

5. The auxiliary releasing device for coal bed methane drilling as claimed in claim 1, wherein: the hydraulic driving structure (17) comprises a cylinder body (172), the cylinder body (172) is arranged on the semi-annular plate (15) in a penetrating mode, a second piston rod (171) is arranged in the cylinder body (172), and the second piston rod (171) is fixedly connected with the connecting strip (19).

6. The auxiliary releasing device for coal bed methane drilling as recited in claim 5, wherein: the inside of barrel (172) is equipped with first piston rod (173), the one end fixedly connected with pulley (174) of first piston rod (173), pulley (174) slip is in notch (18).