CN220267641U - Self-made milling and drilling inverted spear deep well broken stone and broken overshot - Google Patents

Abstract

The utility model discloses a self-made milling and drilling inverted spear deep well broken stone and a broken overshot, which belong to the technical field of salvaging tools and comprise an inverted spear sleeve, wherein one end of the inverted spear sleeve is connected with a circulating joint, one end of the inverted spear sleeve, which is far away from the circulating joint, is connected with a milling shoe, the outer end of the milling shoe is provided with milling teeth, the inner wall of the inverted spear sleeve is provided with a plurality of groups of steel wire rope assemblies, the outer end of the inverted spear sleeve is provided with a plurality of drain holes, water and silt in the inverted spear sleeve can flow to the drain holes through the arranged drain holes and the communication holes, at the moment, a disc is driven to rotate by thrust, at the moment, the water and the silt are discharged through the drain holes, so that a good pollution discharge effect is achieved, and the outer end of the disc is reset under the torsion effect of a torsion spring, so that the communication holes are plugged, the entry of the silt in the process of the overshot is reduced, the increase of weight in the process of moving up the overshot is reduced, and the difficulty of salvaging stone is lowered.

Description

Self-made milling and drilling inverted spear deep well broken stone and broken overshot

Technical Field

The utility model relates to the technical field of fishing tools, in particular to self-made milling and drilling deep well broken stones and a broken fishing barrel.

Background

During the deep well excavation process, unstable stratum and large-grain-size stones can be encountered, and the conditions can cause stratum collapse and well wall collapse near a well mouth, so that stones are accumulated at the well bottom, and proper measures are needed for rescue and repair if collapse or collapse occurs.

Chinese patent grant bulletin number: CN216406757U discloses a hollow milling fishing tool, this scheme not only can once only salvage the shaft bottom junk, shorten and overlap milling operation time, improve the efficiency of casing packer after the well junk is salvaged and overlap milling well cementation, and can reduce the metal chip of milling and mix into drilling fluid, guarantee the normal operation of fishing tool, improve the security of fishing tool operation, when salvaging the rubble in the deep well, there is a large amount of water and silt in the deep well, silt and mud get into inside the overshot easily, thereby need to offer the through-hole that is used for the blowdown at the overshot, in order to improve the work efficiency of overshot, but this scheme only carries out the blowdown through the through-hole that the slope set up, when taking out the overshot, the silt of wall of a well gets into in the overshot through the through-hole easily under the effect of friction, increase the weight of overshot, thereby the degree of difficulty of salvaging.

Therefore, a self-made milling and drilling deep well broken stone and a broken overshot are proposed to solve the problems.

Disclosure of Invention

Therefore, the utility model provides the self-made milling and drilling inverted spear deep well broken stone and the broken overshot, the self-made milling and drilling inverted spear deep well stone and the broken overshot can flow to the drain hole through the drain hole and the communication hole, the disc is pushed to rotate at the moment and compresses the torsion spring, the water and the sludge are discharged through the drain hole at the moment, so that a good pollution discharge effect is achieved, the outer end of the disc can be reset under the torsion action of the torsion spring, the communication hole is plugged, the entry of the sludge in the upward moving process of the overshot is reduced, the weight increase in the upward moving process of the overshot is reduced, and the stone salvaging difficulty is reduced.

In order to achieve the above object, the present utility model provides the following technical solutions:

according to the first aspect of the utility model, the self-made milling and drilling inverted spear deep well broken stone and broken overshot comprises an inverted spear sleeve, one end of the inverted spear sleeve is connected with a circulating joint, one end of the inverted spear sleeve, which is far away from the circulating joint, is connected with a milling shoe, the outer end of the milling shoe is provided with milling teeth, the inner wall of the inverted spear sleeve is provided with a plurality of groups of steel wire rope assemblies, the outer end of the inverted spear sleeve is provided with a plurality of drain holes, the inner wall of the inverted spear sleeve is provided with a plurality of communication holes communicated with the drain holes, the inner wall of the inverted spear sleeve is provided with a plurality of shielding assemblies, and the inner wall of the drain hole is provided with a sealing assembly.

The shielding assembly comprises a connecting plate, wherein the outer end of the connecting plate is fixedly connected with a plurality of connecting rods, and the connecting rods are fixedly connected with the inner wall of the spear sleeve.

Further, the drain hole and the communication hole are both obliquely arranged, and the inner diameter of the drain hole is larger than that of the communication hole.

Further, the sealing assembly comprises a disc and a pair of fixed blocks, wherein a sealing gasket is arranged at the outer end of the disc, and the sealing gasket is movably abutted with the inner wall of the drain hole.

Further, a pair of fixed blocks are fixed to the inner wall of the drain hole, the outer end of the disc is fixedly connected with a T-shaped rod, and the T-shaped rod is rotationally connected with the pair of fixed blocks.

Further, a pair of limiting blocks are fixedly arranged at the outer end of the T-shaped rod, a pair of torsion springs are sleeved at the outer end of the T-shaped rod, and two ends of the torsion springs are fixedly connected with the fixing blocks and the limiting blocks respectively.

Further, the steel wire rope assembly is formed by combining a plurality of single-strand steel wire ropes, and the single-strand steel wire ropes are mutually crossed and arranged.

Further, the inner diameters of the spear sleeve and the milling shoe are the same.

The utility model has the following advantages:

(1) This scheme is through the wash port and the intercommunicating pore that set up, and the inside water of spear sleeve and silt can pass through the intercommunicating pore flow direction wash port, and the disc receives thrust and produces the rotation this moment, and compress the torsional spring, water and silt are discharged through wash port department this moment, thereby reach good blowdown effect, and the disc can make the disc outer end reset under the torsion effect of torsional spring, thereby carry out the shutoff to the intercommunicating pore department, reduce the entering of overshot upward movement in-process silt, thereby reduce the increase of overshot upward movement in-process weight, reduce the rubble and salvage the degree of difficulty.

(2) Through the multiunit wire rope subassembly that sets up, produce radial clamping force when the rubble gets into the sleeve inner chamber of falling the spear for the rubble is difficult for dropping.

(3) Through the shielding component that sets up, can play the shielding effect, reduce the communicating hole and by the obstructed probability of rubble, further improved the drainage effect of device.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, proportional changes, or adjustments of size, which do not affect the efficacy of the utility model or the objects achieved, should fall within the scope of the utility model.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the front cross-sectional structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

fig. 5 is a schematic view of a partial cross-sectional structure of the present utility model.

The reference numerals in the figures illustrate:

1. a spear sleeve;

2. a circulation joint;

3. milling shoes;

4. a drain hole;

5. a wire rope assembly;

6. a communication hole;

7. a shielding assembly; 71. a connecting plate; 72. a connecting rod;

8. a seal assembly; 81. a fixed block; 82. a disc; 83. a T-shaped rod; 84. a torsion spring; 85. and a limiting block.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, 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, self-made milling and drilling deep well rubble and broken overshot, including the spear sleeve 1, the one end of spear sleeve 1 is connected with circulation joint 2, the one end that the spear sleeve 1 kept away from circulation joint 2 is connected with milling shoe 3, the outer end of milling shoe 3 is provided with milling teeth, multiunit wire rope subassembly 5 is installed to the inner wall of spear sleeve 1, a plurality of wash ports 4 have been seted up to the outer end of spear sleeve 1, a plurality of intercommunicating pore 6 that are linked together with wash ports 4 have been seted up to the inner wall of spear sleeve 1, the inner wall of spear sleeve 1 is equipped with a plurality of shielding assemblies 7, the inner wall of wash ports 4 is equipped with seal assembly 8, this equipment utilizes single-barrel core principle, carry out the salvage of in-well large rock bits, carry out a lot operation, salvage degree of depth is high, the biggest piece diameter that falls reaches 20 centimetres, through the wash ports 4 and intercommunicating pore 6, the inside water and silt of spear sleeve 1 can flow through intercommunicating pore 6, disc 82 receives the thrust through this moment and produces the rotation, and carry out torsion 84, water and through hole 4, thereby drain hole 4 are discharged through hole 4 department, a plurality of intercommunicating hole 6, a plurality of communication hole 6 is set up, a plurality of communication hole 6 is formed in the inner wall, and seal assembly is well, a good effect is realized, and the effect that can reduce the effect that the fishing effect is reduced in the fishing disc 82, and the fishing effect is carried out in the fishing process by the disc 82, and the fishing process and can reduce the weight, and the fishing effect 82.

Referring to fig. 4, the shielding assembly 7 includes a connecting plate 71, the outer end of the connecting plate 71 is fixedly connected with a plurality of connecting rods 72, and the connecting rods 72 are fixedly connected with the inner wall of the spear sleeve 1, so that a shielding effect can be achieved, and the probability of blocking the communication hole 6 by broken stones is reduced.

The drain hole 4 and the communicating hole 6 are all inclined, the inner diameter of the drain hole 4 is larger than that of the communicating hole 6, and the drainage of water and sludge in the spear sleeve 1 is facilitated.

The sealing assembly 8 comprises a disc 82 and a pair of fixing blocks 81, a sealing gasket is arranged at the outer end of the disc 82, and the sealing gasket is movably abutted with the inner wall of the drain hole 4 to achieve a sealing effect.

Referring to fig. 1 to 4, a pair of fixing blocks 81 are fixed to the inner wall of the drain hole 4, the outer end of the disc 82 is fixedly connected with a T-shaped rod 83, the T-shaped rod 83 is rotationally connected with the pair of fixing blocks 81, a pair of limiting blocks 85 are fixedly sleeved on the outer end of the T-shaped rod 83, two ends of the torsional springs 84 are fixedly connected with the fixing blocks 81 and the limiting blocks 85 respectively, water and sludge in the spear sleeve 1 can flow to the drain hole 4 through the communication hole 6, at the moment, the disc 82 is pushed to rotate and compress the torsional springs 84, at the moment, the water and the sludge are discharged through the drain hole 4, and after the water is discharged, the disc 82 resets the outer end of the disc 82 under the torsion action of the torsional springs 84, so that the communication hole 6 is plugged.

Referring to fig. 2-3, the steel wire rope assembly 5 is formed by combining a plurality of single-strand steel wires, the distance between two adjacent groups of steel wire rope assemblies 5 is 10cm, the plurality of single-strand steel wires are mutually crossed and arranged, the lifting included angle between each single-strand steel wire rope and the spear sleeve 1 is smaller than 90 degrees and larger than 60 degrees, and radial clamping force is generated when broken stone enters the inner cavity of the spear sleeve 1 through the plurality of groups of arranged steel wire rope assemblies 5, so that the broken stone is not easy to fall.

Referring to fig. 3, the spear sleeve 1 and the mill 3 have the same inner diameter, and the spear sleeve 1 and the mill 3 have an inner diameter of 244.5mm.

The application process of the embodiment of the utility model is as follows:

deep well that needs salvage rubble is gone deep into with this overshot through peripheral hardware to control this equipment and rotate, under the effect of mill 3, can be convenient for overshot go deep, and the rubble in the well gets into down spear sleeve 1 inner chamber under rotatory effort, multiunit wire rope subassembly 5 can be compressed, radial clamping force is produced, make rubble be difficult for dropping, and the inside water of spear sleeve 1 and silt can flow to wash port 4 through intercommunicating pore 6, disc 82 receives thrust to produce rotation this moment, and compress torsional spring 84, water and silt are discharged through wash port 4 department this moment, after the water is discharged, disc 82 is under torsional force effect of torsional spring 84, make disc 82 outer end reset, thereby carry out the shutoff to intercommunicating pore 6 department.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (8)

1. Self-control mills and bores deep well rubble of spear and broken overshot, including spear sleeve (1), its characterized in that, the one end of spear sleeve (1) is connected with circulation joint (2), the one end that circulation joint (2) was kept away from to spear sleeve (1) is connected with milling shoe (3), the outer end of milling shoe (3) is provided with milling teeth, multiunit wire rope subassembly (5) are installed to the inner wall of spear sleeve (1), a plurality of wash ports (4) have been seted up to the outer end of spear sleeve (1), a plurality of intercommunicating pores (6) that are linked together with wash port (4) have been seted up to the inner wall of spear sleeve (1), the inner wall of spear sleeve (1) is equipped with a plurality of shielding assemblies (7), the inner wall of wash port (4) is equipped with seal assembly (8).

2. The self-made milling and drilling inverted spear deep well broken stone and broken overshot according to claim 1, characterized in that the shielding assembly (7) comprises a connecting plate (71), the outer end of the connecting plate (71) is fixedly connected with a plurality of connecting rods (72), and the plurality of connecting rods (72) are fixedly connected with the inner wall of the inverted spear sleeve (1).

3. The self-made milling and drilling inverted spear deep well broken stone and broken overshot according to claim 1, characterized in that the drain hole (4) and the communicating hole (6) are all inclined, and the inner diameter of the drain hole (4) is larger than the inner diameter of the communicating hole (6).

4. The self-made milling and drilling inverted spear deep well macadam and crushing overshot according to claim 1, characterized in that the sealing assembly (8) comprises a disc (82) and a pair of fixed blocks (81), the outer end of the disc (82) is provided with a sealing pad, and the sealing pad is movably abutted with the inner wall of the drain hole (4).

5. The self-made milling and drilling inverted spear deep well macadam and crushing overshot according to claim 4, wherein a pair of fixing blocks (81) are fixed on the inner wall of the drain hole (4), the outer end of the disc (82) is fixedly connected with a T-shaped rod (83), and the T-shaped rod (83) is rotatably connected with the pair of fixing blocks (81).

6. The self-made milling and drilling inverted spear deep well broken stone and broken overshot according to claim 5, wherein a pair of limiting blocks (85) are fixedly mounted at the outer ends of the T-shaped rods (83), a pair of torsion springs (84) are sleeved at the outer ends of the T-shaped rods (83), and two ends of the torsion springs (84) are fixedly connected with the fixing blocks (81) and the limiting blocks (85) respectively.

7. A self-made milling and drilling deep well gravel and broken overshot according to claim 3, characterized in that said wire rope assembly (5) is composed of a plurality of single wire ropes, a plurality of said single wire ropes being arranged crosswise to each other.

8. A self-made milling and drilling deep well detritus and crushing overshot according to claim 3, characterized in that the inner diameter of the spear sleeve (1) and the milling shoe (3) are the same.