Integrated drillable squeezing and sealing tool

Abstract

The utility model relates to the technical field of drilling tools, and discloses an integrated drillable squeezing and sealing tool which comprises a rotating rod and a driving pipe, the rotating rod is located in the driving pipe, the bottom end of the driving pipe is in threaded connection with an upper piston, the outer surface of the upper piston is sleeved with a lower piston, and the outer surface of the upper piston is sleeved with a rubber ring. A chuck is fixedly connected to the bottom end of the lower piston, a supporting pipe is in threaded connection to the outer surface of the rotating rod, four supporting rods are rotatably connected to the interior of the supporting pipe, a resistance piece is fixedly connected to the upper surface of each supporting rod, a drill bit is fixedly connected to the bottom face of the supporting pipe, and a limiting pipe is fixedly connected to the bottom face of the drill bit; the outer surface of the rotating rod is in threaded connection with the inner wall of the drill bit and the inner wall of the limiting pipe, and an electric extending rod is fixedly connected to the inner bottom wall of the rotating rod. The integrated drillable squeezing and sealing tool is time-saving and labor-saving in use, low in construction difficulty and large in frictional resistance, and underground accidents such as sausage filling and flagpole insertion are not easy to occur.

Description

TECHNICAL FIELD

[0001] The utility model relates to drilling tool technical field, concretely is a kind of integrated drillable extrusion sealing tool. BACKGROUND

[0002] Integrated drillable extrusion sealing tool is mainly used for temporary, permanent sealing or secondary cementing of oil, gas and water layers, and cement slurry is injected into annulus of well section needing to be cemented or into cracks and pores of formation by retaining device to achieve the purpose of sealing and leakage repair.

[0003] The utility model with publication number CN218624165U discloses an integrated drillable extrusion sealing tool, which comprises an outer cylinder, a shear pin is fixed to the upper joint on the outer cylinder, a sealing ring is arranged between the upper joint and the outer cylinder, a starting piston is installed in the outer cylinder through the sealing ring, an upper piston is arranged on the starting piston through the sealing ring, and the upper piston is connected to the upper joint through a starting lock block.

[0004] The utility model discloses a pre-seat sealing shear pin, which ensures that the tool will not be prematurely seat sealed due to pressure fluctuation in the wellbore during the process of lowering into the well, but the above technical solution has the following problems: it is difficult to operate and inconvenient to withdraw the pipe, the technical requirements for workers are high, and the frictional resistance between the sleeve and the shaft wall is small, which can easily cause downhole accidents such as "sausage filling" and "flag pole insertion". UTILITY MODEL CONTENTS

[0005] (1) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides an integrated drillable extrusion sealing tool, which has the advantages of simple operation, low learning cost for workers, large sleeve friction and the like.

[0007] (2) Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an integrated drillable extrusion sealing tool, comprising a rotating rod and a driving pipe, the rotating rod is located in the inside of the driving pipe, the bottom end of the driving pipe is threadedly connected with an upper piston, the outer surface of the upper piston is sleeved with a lower piston, the outer surface of the upper piston is sleeved with a rubber ring, the bottom end of the lower piston is fixedly connected with a chuck, the outer surface of the rotating rod is threadedly connected with a support pipe, the inside of the support pipe is rotatably connected with four supporting rods, the upper surface of each supporting rod is fixedly connected with a resistance sheet, the bottom surface of the support pipe is fixedly connected with a drill bit, the bottom surface of the drill bit is fixedly connected with a limiting pipe, the outer surface of the rotating rod is threadedly connected with the inner wall of the drill bit and the inner wall of the limiting pipe, respectively, and the inner bottom wall of the rotating rod is fixedly connected with an electric extension rod.

[0009] Preferably, the outer surface of the limiting pipe is provided with a limiting hole, and the telescopic end of the electric telescopic rod penetrates through the limiting hole and extends to the outside of the limiting pipe.

[0010] Preferably, the outer surface of the drill bit is fixedly connected with a plurality of drill balls, and the upper surface of the drill bit is provided with six water outlets.

[0011] Preferably, the side surface of each group of resistance sheets close to each other is fixedly connected with a triangular block, and the side surface of each group of triangular blocks close to each other is in contact with the outer surface of the chuck.

[0012] Preferably, the outer surface of the upper piston is fixedly connected with a first baffle disc, and the bottom surface of the first baffle disc is in contact with the upper surface of the rubber ring.

[0013] Preferably, the outer surface of the lower piston is fixedly connected with a second baffle disc, and the upper surface of the second baffle disc is in contact with the bottom surface of the rubber ring.

[0014] Preferably, the outer surface of the upper piston is provided with six holes, and the outer surface of the lower piston is provided with six through holes.

[0015] Preferably, the inner wall of the upper piston is fixedly connected with a plug, the inside of the upper piston is provided with a plug ball, and the inner wall of the plug is in contact with the outer surface of the plug ball.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a kind of integrated drillable squeeze tool, with following beneficial effects:

[0018] The integrated drillable squeeze tool, by being provided with rotating rod, drive pipe, upper piston, lower piston, rubber ring, chuck, support pipe, support rod, resistance sheet, drill bit, limiting pipe and electric telescopic rod, the effect of drilling down well can be realized by drill bit, in addition, support pipe, support rod and resistance sheet can be connected with chuck, and the device is tightly clamped on shaft wall by opening resistance sheet, plays the role of support, upper piston, lower piston and rubber ring can seal shaft, realize the purpose of grouting cement, achieve the integrated drillable squeeze tool, save time and labor when operating, construction difficulty is small and frictional resistance is large, and the purpose of not prone to "sausage filling, flag pole inserting" and other downhole accidents. ACCURACY

[0019] Figure 1 It is the three-dimensional structure schematic view of the utility model upper piston;

[0020] Figure 2 It is the three-dimensional structure schematic view of the utility model rubber ring;

[0021] Figure 3The utility model discloses a three-dimensional structure schematic diagram of the cooperation of the plug ball and the drill bit.

[0022] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of the drill bit.

[0023] Figure 5 The utility model discloses a three-dimensional structure schematic diagram of the electric extension pole.

[0024] In the drawing: 1, rotating rod, 2, drive pipe, 3, upper piston, 4, lower piston, 5, rubber ring, 6, chuck, 7, support pipe, 8, support rod, 9, resistance sheet, 10, drill bit, 11, limiting pipe, 12, electric extension pole, 13, limiting hole, 14, drill ball, 15, water outlet, 16, triangular block, 17, first baffle, 18, second baffle, 19, hole, 20, through hole, 21, plug, 22, plug ball. Specific implementation

[0025] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in combination with the drawings.

[0026] Please refer to Figures 1-5 The utility model discloses an integrated drillable squeeze tool, including rotating rod 1 and drive pipe 2, rotating rod 1 is located inside drive pipe 2, the bottom end of drive pipe 2 is screw connected with upper piston 3, the outer surface of upper piston 3 is equipped with lower piston 4, the outer surface of upper piston 3 is equipped with rubber ring 5, the bottom end of lower piston 4 is fixedly connected with chuck 6, the outer surface of rotating rod 1 is screw connected with support pipe 7, four support rods 8 are rotatably connected in the inside of support pipe 7, and every support rod 8 is fixedly connected with resistance sheet 9 on the upper surface, and the bottom of support pipe 7 is fixedly connected with drill bit 10, and the bottom of drill bit 10 is fixedly connected with limiting pipe 11, and the inner wall of drill bit 10 and the inner wall of limiting pipe 11 are screw connected with the outer surface of rotating rod 1 respectively, and the inner bottom wall of rotating rod 1 is fixedly connected with electric extension pole 12.

[0027] The outer surface of limiting pipe 11 is equipped with limiting hole 13, and the telescopic end of electric extension pole 12 penetrates limiting hole 13 and extends to the outside of limiting pipe 11, and electric extension pole 12 passes through limiting hole 13 and is used for limiting drill bit 10, so that drill bit 10 is connected together with rotating rod 1.

[0028] The outer surface of drill bit 10 is fixedly connected with a plurality of drill balls 14, and the upper surface of drill bit 10 is equipped with six water outlets 15, drill ball 14 is used to rotate drilling, can easily break rock, and the rock drilled by drill ball 14 comes out from water outlet 15, which is used to relieve the pressure of drill bit 10.

[0029] The side surface of each group of resistance sheets 9 close to each other is fixedly connected with a triangular block 16, the side surface of each group of triangular blocks 16 close to each other is in contact with the outer surface of the chuck 6, the triangular block 16 is used for increasing the thickness of the resistance sheet 9, the triangular block 16 is convenient for clamping the chuck 6, and the resistance sheet 9 is completely contacted with the well, so that the friction is greater.

[0030] The outer surface of the upper piston 3 is fixedly connected with a first baffle disc 17, the bottom surface of the first baffle disc 17 is in contact with the upper surface of the rubber ring 5, the first baffle disc 17 is suitable for extruding the rubber ring 5 from top to bottom, and the purpose of preventing the rubber ring 5 from slipping is achieved.

[0031] The outer surface of the lower piston 4 is fixedly connected with a second baffle disc 18, the upper surface of the second baffle disc 18 is in contact with the bottom surface of the rubber ring 5, the second baffle disc 18 is suitable for lifting the rubber ring 5 from bottom to top, and the purpose of preventing the rubber ring 5 from slipping is achieved.

[0032] The outer surface of the upper piston 3 is provided with six holes 19, and the outer surface of the lower piston 4 is provided with six through holes 20; the holes 19 and the through holes 20 are used for discharging excess oil and water in the piston, relieving the pressure in the piston, and reducing resistance.

[0033] The inner wall of the upper piston 3 is fixedly connected with a plug 21, the inner wall of the upper piston 3 is provided with a plug ball 22, the inner wall of the plug 21 is in contact with the outer surface of the plug ball 22, and the cooperation of the plug 21 and the plug ball 22 can make the extrusion sealing tool form a closed partition for the well, and the sealing and flow-stopping effect is achieved.

[0034] The working principle of the utility model is: firstly, the extrusion sealing tool is sent into the well mouth, the telescopic end of the electric telescopic rod 12 is used for penetrating through the limiting hole 13 to limit and fix the limiting pipe 11 and the rotating rod 1 together, the limiting pipe 11 and the drill bit 10 are fixedly connected, when the rotating rod 1 rotates, the drill bit 10 and the limiting pipe 11 can be driven to rotate together, the drill bit 10 is provided with a plurality of drill balls 14 and a water outlet 15 on the surface, and the design can realize the purpose of drilling a well in the underground.

[0035] Using the threaded connection relationship of the driving pipe 2 and the upper piston 3, the driving pipe 2 is conveyed downwards, and the pushing force of the driving pipe 2 drives the upper piston 3, the rubber ring 5, the lower piston 4 and the chuck 6 to push downwards together to the specified position, then the rotating rod 1 is lifted upwards, the driving pipe 2 is pushed downwards, at this time the rotating rod 1 drives the limiting pipe 11, the drill bit 10 and the supporting pipe 7 to lift upwards together, using the rotating connection relationship of the supporting pipe 7 and the inner wall of the supporting pipe 7, at this time the triangular block 16 contacts the chuck 6, using the conical design of the chuck 6, the resistance sheet 9 is expanded and enlarged, then the resistance sheet 9 is clamped on the chuck 6, and using the reverse tooth outside the resistance sheet 9 and the well wall, the resistance sheet 9 is tightly clamped to prevent sliding downwards, at this time the resistance sheet 9 is fixed on the well, then the telescopic end of the electric telescopic rod 12 is separated from the limiting pipe 11, and the rotating rod 1 can be retracted by reversing the rotating rod 1;

[0036] Using the threaded connection relationship of the driving pipe 2 and the upper piston 3, the driving pipe 2 is conveyed downwards, and the pushing force of the driving pipe 2 drives the upper piston 3, the rubber ring 5, the lower piston 4 and the chuck 6 to push downwards together to the specified position, then the rotating rod 1 is lifted upwards, the driving pipe 2 is pushed downwards, at this time the rotating rod 1 drives the limiting pipe 11, the drill bit 10 and the supporting pipe 7 to lift upwards together, using the rotating connection relationship of the supporting pipe 7 and the inner wall of the supporting pipe 7, at this time the triangular block 16 contacts the chuck 6, using the conical design of the chuck 6, the resistance sheet 9 is expanded and enlarged, then the resistance sheet 9 is clamped on the chuck 6, and using the reverse tooth outside the resistance sheet 9 and the well wall, the resistance sheet 9 is tightly clamped to prevent sliding downwards, at this time the resistance sheet 9 is fixed on the well, then the telescopic end of the electric telescopic rod 12 is separated from the limiting pipe 11, and the rotating rod 1 can be retracted by reversing the rotating rod 1;

[0037] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. An integrated drill-in packer tool comprising a rotating shaft (1) and a drive pipe (2), characterized in that: The rotating rod (1) is located in the inside of the driving pipe (2), the bottom end of the driving pipe (2) is screwed with the upper piston (3), the outer surface of the upper piston (3) is sleeved with the lower piston (4), the outer surface of the upper piston (3) is sleeved with the rubber ring (5), the bottom end of the lower piston (4) is fixedly connected with the chuck (6), the outer surface of the rotating rod (1) is screwed with the support pipe (7), the inside of the support pipe (7) is rotatably connected with the four supporting rods (8), the upper surface of each supporting rod (8) is fixedly connected with the resistance sheet (9), the bottom surface of the support pipe (7) is fixedly connected with the drill bit (10), the bottom surface of the drill bit (10) is fixedly connected with the limiting pipe (11), the outer surface of the rotating rod (1) is screwed with the inner wall of the drill bit (10) and the inner wall of the limiting pipe (11) respectively, and the inner bottom wall of the rotating rod (1) is fixedly connected with the electric telescopic rod (12).

2. The integrated drill-in packer of claim 1, wherein: The outer surface of the limiting pipe (11) is provided with the limiting hole (13), and the telescopic end of the electric telescopic rod (12) penetrates through the limiting hole (13) and extends to the outside of the limiting pipe (11).

3. The integrated drill-in packer of claim 1, wherein: The outer surface of the drill bit (10) is fixedly connected with the plurality of drill balls (14), and the upper surface of the drill bit (10) is provided with the six water outlets (15).

4. The integrated drill-in packer of claim 1, wherein: The side, close to each other, of each group of resistance sheets (9) is fixedly connected with the triangular block (16), and the side, close to each other, of each group of triangular blocks (16) is in contact with the outer surface of the chuck (6).

5. The integrated drill-in packer of claim 1, wherein: The outer surface of the upper piston (3) is fixedly connected with the first baffle disc (17), and the bottom surface of the first baffle disc (17) is in contact with the upper surface of the rubber ring (5).

6. The integrated drill-in packer of claim 1, wherein: The outer surface of the lower piston (4) is fixedly connected with the second baffle disc (18), and the upper surface of the second baffle disc (18) is in contact with the bottom surface of the rubber ring (5).

7. The integrated drill-in packer of claim 1, wherein: The outer surface of the upper piston (3) is provided with the six holes (19), and the outer surface of the lower piston (4) is provided with the six through holes (20).

8. The integrated drill-in packer of claim 1, wherein: The inner wall of the upper piston (3) is fixedly connected with the plug (21), the inside of the upper piston (3) is provided with the plug ball (22), and the inner wall of the plug (21) is in contact with the outer surface of the plug ball (22).

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