Loading and unloading tool for low-permeability reservoir gas reservoir drilling tool

Abstract

The utility model discloses a low permeability reservoir gas reservoir well drilling tool connecting and dismounting tool, which comprises a clamp, a support and a track, the clamp is installed on the support, the clamp comprises a fixed clamping seat, a movable clamping seat and a base, the movable clamping seat is connected with the base in a sliding mode, the inner side of the fixed clamping seat and the inner side of the movable clamping seat are both V-shaped blocks, and the fixed clamping seat and the movable clamping seat are connected through the track. The surfaces of the V-shaped blocks are provided with anti-sliding blocks, the anti-sliding blocks are connected with sliding blocks, the sliding blocks are connected with sliding grooves in the inner sides of the V-shaped seats, flow channels are further formed in the inner sides of the V-shaped seats, piston heads fixedly connected with the sliding blocks are arranged in the flow channels, and the flow channels in the fixed clamping seat and the movable clamping seat are sequentially connected in series. An overflow valve is further fixedly connected outside the fixed clamping seat and connected with the flow channels in series. According to the utility model, the critical separation design is designed for the clamping tool for connecting and detaching the drill rod, so that the screwing torque can be automatically controlled when the drill rod is screwed, and the connection screwing force between the drill rods is kept within a proper load range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the low permeable oil and gas deposit development related technical field, and specifically is a low permeable reservoir gas deposit drilling drilling tool. BACKGROUND

[0002] Low permeable oil field refers to the oil layer reservoir permeability low, abundance low, single well production capacity low oil field.

[0003] The characteristics of low permeable reservoir require that the drilling tool has better performance, the drilling tool is generally formed by a plurality of drill pipes through thread rotation, when the drill pipe is fixed through the pipe wrench or hydraulic pipe buckle, the upper drill pipe is driven by the drilling machine to be rotated and connected, in the process of rotation and connection, the lower drill pipe remains fixed, and the torque borne by the pipe wrench, the majority of old drilling machines cannot perceive and control the tightness of the rotation and connection between the two drill pipes, that is, whether the rotation and connection between the two pipes is in place is judged by artificial after being tightened, the problem of loosening or gas leakage in the well may occur when the rotation and connection is not in place, or a great driving force is required when the drill pipe is disconnected due to the excessive tightness of the rotation and connection, and the thread pair is also easily damaged. SUMMARY

[0004] The utility model discloses a low permeable reservoir gas deposit drilling drilling tool to solve the problem that the tightness of the drill pipe is not easy to control in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A low permeable reservoir gas deposit drilling drilling tool, comprising: a clamp, a support and a track, the clamp is installed on the support, the clamp comprises a fixed clamp holder, a movable clamp holder and a base, the movable clamp holder and the base are slidably connected, the inner sides of the fixed clamp holder and the movable clamp holder are V-shaped blocks, anti-skid blocks are arranged on the surfaces of the V-shaped blocks, the anti-skid blocks are connected with sliding blocks, the sliding blocks are connected with sliding grooves in the inner sides of the V-shaped holders, flow channels are further arranged in the inner sides of the V-shaped holders, piston heads fixedly connected with the sliding blocks are arranged in the flow channels, and the flow channels in the fixed clamp holder and the movable clamp holder are sequentially connected with each other.

[0007] As a further scheme of the utility model, a reset oil cylinder is fixedly connected to the outer side of the fixed clamp holder, and the reset oil cylinder is connected with the flow channels.

[0008] As a further scheme of the utility model, a piston cylinder is arranged in the reset oil cylinder, and a bolt adjusting rod is connected to the piston cylinder.

[0009] As a further scheme of the utility model: the support is slidably arranged on the track.

[0010] As a further scheme of the utility model: the handle is arranged on the support.

[0011] As a further scheme of the utility model: the fixed clamping seat is fixedly installed on the base, the base is provided with a sliding rail, the movable clamping seat is movably connected with the sliding rail, and a lead screw is connected with the movable clamping seat to drive the movable clamping seat to move along the sliding rail.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the utility model designs the critical disengagement of the drill rod connecting and disengaging clamping tool, can automatically control the screwing torque of the drill rod when rotating, and keeps the connecting screwing force between the drill rods in the suitable load range. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the embodiments of the application, and constitute a part of the specification, and are used together with the following detailed description to explain the embodiments of the application, but do not constitute a limitation on the embodiments of the application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the clamp in the utility model;

[0016] Figure 3 It is a sectional view of the inside of the clamp in the utility model;

[0017] Figure 4 It is a connection principle diagram between the flow channel, the overflow valve and the reset oil cylinder in the utility model.

[0018] In the drawings, 1, clamp; 11, fixed clamping seat; 111, flow channel; 112, sliding block; 113, piston head; 12, movable clamping seat; 13, sliding rail; 14, lead screw; 15, base; 16, V-shaped seat; 17, anti-skid block; 18, sliding groove; 2, support; 21, handle; 3, track; 4, overflow valve; 5, reset oil cylinder; 51, bolt adjusting rod. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] Please refer to Figures 1 to 3 In the embodiments of the present application, a low-permeability reservoir gas well drilling tool is provided, which comprises a clamp 1, a support 2 and a track 3. The clamp 1 is installed on the support 2, and the support 2 is slidingly arranged on the track 3. The track 3 can be arranged opposite to the wellhead on the side of the wellhead. A handle 21 is arranged on the support 2. The clamp 1 can be pushed towards the wellhead or moved out of the wellhead by moving the support 2, and manual holding is not required during the connecting and dismounting process.

[0021] The clamp 1 comprises a fixed clamp holder 11, a movable clamp holder 12 and a base 15. The fixed clamp holder 11 is fixedly installed on the base 15, and the base 15 is provided with a sliding rail 13. The movable clamp holder 12 is movably connected with the sliding rail 13, and a lead screw 14 is connected with the movable clamp holder 12 to drive the movable clamp holder 12 to move along the sliding rail 13. The inner sides of the fixed clamp holder 11 and the movable clamp holder 12 are both V-shaped seats 16. Anti-skid blocks 17 are arranged on the surfaces of the V-shaped seats 16. The anti-skid blocks 17 are connected with sliding blocks 112. The sliding blocks 112 are connected with sliding grooves 18 on the inner sides of the V-shaped seats 16. Flow channels 111 are further arranged on the inner sides of the V-shaped seats 16. Piston heads 113 fixedly connected with the sliding blocks 112 are arranged in the flow channels 111. The flow channels 111 in the fixed clamp holder 11 and the movable clamp holder 12 are connected in series.

[0022] As Figure 4 The fixed clamp holder 11 is further fixedly connected with an overflow valve 4 and a reset oil cylinder 5. The overflow valve 4 is connected in series with the flow channels 111, that is, the oil outlet of the overflow valve 4 is connected with one end of the flow channel 111 in the fixed clamp holder 11. One end of the flow channel 111 in the movable clamp holder 12 is connected to the oil inlet of the overflow valve 4 through a pressure hose. The flow channels 111 between the movable clamp holder 12 and the fixed clamp holder 11 are connected through pressure hoses. The reset oil cylinder 5 is also connected in series with the flow channels 111, that is, one oil port of the reset oil cylinder 5 is connected with one end of the flow channel 111 in the fixed clamp holder 11, and the other oil port is connected with one end of the flow channel 111 of the movable clamp holder 12 through a pressure hose. A piston cylinder is arranged in the reset oil cylinder 5, and a bolt adjusting rod 51 is connected with the piston cylinder.

[0023] When the above-mentioned tool is used for lowering the drill pipe into the well, the clamp 1 is moved to the well mouth, and the drill pipe is clamped by moving the movable clamping seat 12, at this time, the anti-skid block 17 in the V-shaped seat 16 acts on the surface of the drill pipe and is in linear contact with the drill pipe, when the drill pipe is screwed by the drilling machine, before the appropriate screwing torque is reached (the critical torque is adjusted by adjusting the overflow valve overflow pressure according to the drill pipe screwing specification), the overflow valve 4 is not opened, and the pressure oil in the flow channel 111 and the pipeline cannot flow, and the anti-skid block 17 plays a clamping role on the drill pipe, when the screwing torque reaches the overflow valve 4, a passage is formed between the flow channel 111 and the overflow valve 4, the pressure oil flows, so that the piston head 113, the sliding block 112 and the anti-skid block 17 in the flow channel 111 can move, so that the anti-skid block 17 moves and is out of contact with the surface of the drill pipe, and the clamping effect is lost, so that the clamp 1 releases the clamping and fixing effect on the drill pipe, so that the drill pipe is completed by screwing, and the screwing force is not too large or not up to standard, and the dynamic and continuous opening and closing characteristics of the overflow valve 4 make the anti-skid block 17 also move dynamically and continuously when the screwing torque reaches the critical value, and a large impact force is not caused by instantaneous translation;

[0024] After the drill pipe is combined, the piston cylinder in the oil cylinder is moved by adjusting the rod 51 by bolts, and the pressure oil in the cylinder is injected into the flow channel 111 in the reverse direction, so that the anti-skid block 17 can be driven to return to the original position.

[0025] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although the present application is described in the specification, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A low permeability reservoir gas well drilling tool makeup and breakout tool comprising: Clamp (1), support (2) and track (3), the clamp (1) is installed on support (2), clamp (1) includes fixed holder (11), movable holder (12) and base (15), the inside of fixed holder (11) and movable holder (12) are V-shaped seat (16), characterized by: the surface of V-shaped seat (16) is provided with anti-skid block (17), the anti-skid block (17) is connected with sliding block (112), the sliding block (112) is connected with the sliding groove (18) in the inside of V-shaped seat (16), the inside of V-shaped seat (16) is further provided with flow channel (111), the flow channel (111) is provided with piston head (113) fixedly connected with sliding block (112), the flow channel (111) in fixed holder (11) and movable holder (12) are in series with each other;The fixed holder (11) is fixedly connected with overflow valve (4), the overflow valve (4) is connected with each flow channel (111).

2. A low permeability reservoir gas well drilling tool connecting and disconnecting tool according to claim 1, characterized in that: The fixed holder (11) is fixedly connected with reset oil cylinder (5), the reset oil cylinder (5) is connected with each flow channel (111).

3. A low permeability reservoir gas well drilling tool connection and release tool according to claim 2, characterized in that: The reset oil cylinder (5) is provided with a piston cylinder, the piston cylinder is connected with bolt adjusting rod (51).

4. The low permeability reservoir gas well drilling tool makeup and breakout tool of Claim 1, wherein: The support (2) is slidably arranged on the track (3).

5. A running and releasing tool for drilling a well in a low permeability gas reservoir according to claim 1 or 4, characterized in that: The handle (21) is arranged on the support (2).

6. A low permeability reservoir gas well drilling tool connecting and disconnecting tool according to claim 1, characterized in that: The fixed holder (11) is fixedly installed on the base (15), the base (15) is provided with slide rail (13), the movable holder (12) is movably connected with the slide rail (13), and the screw rod (14) is connected with the movable holder (12) to drive the movable holder (12) to move along the slide rail (13).

Images