CN214365965U - Hole bottom slag fishing device for well drilling - Google Patents
Hole bottom slag fishing device for well drilling Download PDFInfo
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- CN214365965U CN214365965U CN202023279848.2U CN202023279848U CN214365965U CN 214365965 U CN214365965 U CN 214365965U CN 202023279848 U CN202023279848 U CN 202023279848U CN 214365965 U CN214365965 U CN 214365965U
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- slag
- barrel
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- hole
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- 239000002893 slag Substances 0.000 title claims abstract description 114
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 239000011435 rock Substances 0.000 claims abstract description 22
- 239000013049 sediment Substances 0.000 claims abstract description 18
- 238000010079 rubber tapping Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 239000000843 powder Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a hole bottom slag salvaging device for well drilling, which comprises a slag salvaging barrel, a drill rod, a drill bit and a lifting rod; the drill rod comprises an inner cavity for containing slurry, the bottom end of the drill rod is connected with the drill bit, and the inner cavity of the drill rod is communicated with the inner cavity of the drill bit so as to convey the slurry to the drill bit; the slag salvaging barrel comprises an inner barrel wall and an outer barrel wall, and the bottom edges of the inner barrel wall and the outer barrel wall are fixedly connected with the barrel bottom of the slag salvaging barrel; a space for containing rock slag is formed between the inner barrel wall and the outer barrel wall; the slag dragging barrel is provided with a through hole corresponding to the barrel bottom part of the inner barrel wall, and the slag dragging barrel is sleeved on the drill rod through the through hole; the outer barrel wall is connected with a lifting rod used for moving the slag salvaging barrel up and down along the direction of the drill rod. The utility model discloses a drag for the separation of sediment bucket and drilling rod among the sediment process, need not to carry and to draw the drilling rod and can salvage the rock powder, the detritus at the bottom of the hole, reduced intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of drilling equipment, concretely relates to sediment device is dragged for to the hole bottom that well drilling was used.
Background
At present, in the construction process of drilling engineering, too much rock powder at the bottom of a hole in the hole, even partial rock powder and rock debris cannot return out of the hole along with mud due to various factors such as too fast footage, poor mud performance and the like, and the safety of drilling construction is seriously threatened.
The current treatment method for the situation generally comprises the step of using a slag removing pipe to be lowered into the bottom of a drilled hole along with a drill rod to salvage rock powder and rock debris. The slag salvaging pipe is generally connected to the drill rod in a fixed mode such as welding, so that after the slag is salvaged at the bottom of the hole, the drill rod and the slag salvaging pipe are firstly lifted out of the hole, and then the discharged and fished rock powder and rock debris are put down into the bottom of the hole again to carry out the next round of slag salvaging. The existing slag salvaging mode is frequently used in well drilling construction, but the construction efficiency is low, and the lost labor cost and the labor intensity are high.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model provides a sediment device is dragged for to well drilling hole bottom can realize that the hole bottom drags for sediment bucket and drilling rod separation, need not to carry and to pull up the drilling rod and can salvage rock powder, the detritus at the bottom of the well drilling hole, has reduced intensity of labour.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the hole bottom slag salvaging device for well drilling provided by the utility model comprises a slag salvaging barrel, a drill rod, a drill bit and a lifting rod;
the drill rod comprises an inner cavity for containing mud, the bottom end of the drill rod is connected with the drill bit, and the inner cavity of the drill rod is communicated with the inner cavity of the drill bit so as to convey the mud to the drill bit;
the slag salvaging barrel comprises an inner barrel wall and an outer barrel wall, and the bottom edges of the inner barrel wall and the outer barrel wall are fixedly connected with the bottom of the slag salvaging barrel; a space for containing rock slag is formed between the inner barrel wall and the outer barrel wall; the slag salvaging barrel is provided with a through hole corresponding to the barrel bottom part of the inner barrel wall, and the slag salvaging barrel is sleeved on the drill rod through the through hole;
the outer barrel wall of the slag salvaging barrel is connected with the lifting rod which is used for moving the slag salvaging barrel up and down along the direction of the drill rod.
In some preferred embodiments, the bottom of the slag ladle is circular.
In some preferred embodiments, the through hole is circular, and the inner barrel wall forms a cylinder around the axial direction of the slag salvaging barrel; the ratio of the diameter of the through hole to the diameter of the cylindrical bottom surface formed by the inner barrel wall is 1 (1-5).
In some preferred embodiments, the outer barrel wall forms a cylinder around the axial direction of the slag scoop, and the ratio of the diameter of the cylinder formed by the inner barrel wall around the axial direction of the slag scoop is (1.5-10): 1.
In some preferred embodiments, the height ratio of the outer barrel wall to the inner barrel wall of the slag salvaging barrel is 1 (1-1.5).
In some preferred embodiments, the downhole slag salvaging device further comprises a positioning structure, wherein the positioning structure comprises a positioning disc and an insertion rod;
the positioning disc is fixed at the lower part of the drill rod and is provided with a plurality of clamping grooves;
the bottom of dragging for the sediment bucket with the top of inserted bar is connected, the bottom detachably of inserted bar penetrates to the positioning disk in the draw-in groove, in order to incite somebody to action drag for the sediment bucket to be located the positioning disk top.
In some preferred embodiments, the inserted rod and the bottom of the slag salvaging barrel form an inclined angle of 30-60 degrees.
In some preferred embodiments, the inclined angle formed by the clamping groove and the horizontal direction is the same as the inclined angle formed by the inserting rod and the bottom of the slag salvaging barrel.
In some preferred embodiments, the number of the insert rods is less than or equal to the number of the card slots.
In some preferred embodiments, a supporting wall perpendicular to the positioning disc is fixed on the periphery of the positioning disc, and the top of the supporting wall is in contact with the inserted rod and is used for supporting the slag scooping barrel.
By adopting the technical scheme, the method has the following technical effects:
the utility model provides a sediment device is dragged for to well drilling hole bottom drags for the disconnect-type setting of sediment bucket and drilling rod for need not to carry the salvage that drill rod, drill bit can realize hole bottom rock powder, detritus dragging for the sediment in-process.
The utility model provides a sediment device is dragged for to well drilling hole bottom has alleviateed personnel intensity of labour, improves the efficiency of construction.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the downhole slag salvaging device for drilling;
FIG. 2 is a front view of one embodiment of a slag salvaging barrel in the downhole slag salvaging device for well drilling of the present invention;
FIG. 3 is a top view of the slag ladle shown in FIG. 2;
FIG. 4 is a top view of an embodiment of a positioning plate in the bottom hole slag extractor for drilling according to the present invention;
FIG. 5 is a front view of the slag ladle shown in FIG. 4;
the slag fishing device comprises a slag fishing barrel 1, a slag fishing barrel 2, a drill rod 3, a drill bit 4, an inner barrel wall 5, a lifting rod 6, an inserting rod 7, a positioning disc 8, a clamping groove 9, a supporting wall 10, an outer barrel wall 11 and a through hole.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following detailed description of the invention.
The hole bottom slag salvaging device for well drilling provided by the utility model is shown in figure 1, and comprises a slag salvaging barrel 1, a drill rod 2, a drill bit 3 and a lifting rod 5; the drill rod 2 comprises an inner cavity for receiving mud, the bottom end of the drill rod 2 is connected to the drill bit 3, and the inner cavity of the drill rod 2 communicates with the inner cavity of the drill bit 3 for delivering the mud used for drilling to the drill bit 3, and the drill bit 3 is driven by the rotation of the drill rod 2 to break the rock at the bottom of the hole into rock fragments.
As shown in fig. 1, the slag salvaging barrel 1 comprises an inner barrel wall 4 and an outer barrel wall 10, and the bottom edges of the inner barrel wall 4 and the outer barrel wall 10 are fixedly connected with the bottom of the slag salvaging barrel 1, so that a space for containing rock slag is formed between the inner barrel wall 4 and the outer barrel wall 10. A through hole 11 shown in figures 2 and 3 is formed in the part, corresponding to the inner barrel wall 4, of the slag salvaging barrel 1 at the bottom, and a drill rod 2 penetrates through the through hole 11 and is sleeved in the slag salvaging barrel 1 with an upward opening; in some specific embodiments, the bottom of the slag salvaging barrel 1 is circular, and the through hole 11 is circular.
The outer barrel wall 10 of the slag salvaging barrel 1 is connected with a lifting rod 5 which is used for moving the slag salvaging barrel 1 up and down along the direction of the drill rod 2.
In the hole bottom slag salvaging device of the utility model, the inner barrel wall 4 forms a cylinder shape around the axial direction of the slag salvaging barrel 1; the ratio of the diameter of the through hole 11 at the bottom of the barrel to the diameter of the cylindrical bottom surface formed by the inner barrel wall 4 is 1 (1-5), such as 1:2, 1:3, 1: 4; the outer barrel wall 10 forms a cylinder around the axial direction of the slag salvaging barrel 1, and the ratio of the diameter of the cylindrical bottom surface of the outer barrel wall to the diameter of the cylinder formed by the inner barrel wall 4 around the axial direction of the slag salvaging barrel 1 is (1.5-10):1, such as 2:1, 5:1, 8: 1. In some embodiments, the diameter of the cylindrical bottom surface formed by the outer tub wall 10 is typically 0.8-0.9 times the diameter of the cross-section of the drilled hole, and the diameter of the through-hole 11 in the tub bottom is typically 1.1-1.5 times the diameter of the drill rod 2.
In the hole bottom slag salvaging device of the utility model, the height ratio of the outer barrel wall 10 and the inner barrel wall 4 of the slag salvaging barrel 1 is 1 (1-1.5), and in order to further ensure that the rock slag can smoothly enter the space formed by the outer barrel wall 10 and the inner barrel wall 4 and used for containing the rock slag, the height ratio of the outer barrel wall 10 and the inner barrel wall 4 is 1 (1.2-1.4), for example, 1: 1.3.
The utility model provides a well bottom slag salvaging device for well drilling, which also comprises a positioning structure, wherein the positioning structure comprises a positioning disc 7 and an inserted link 6, as shown in figures 1 and 4; the positioning disc 7 is fixed at the lower part of the drill rod 2, and a plurality of clamping grooves 8 are formed in the positioning disc 7; drag for the ladle bottom of sediment bucket 1 and be connected with the top of inserted bar 6, the bottom detachably of inserted bar 6 penetrates to the draw-in groove 8 of positioning disk 7 in to drag for sediment bucket 1 and be located positioning disk 7 top. Specifically, the positions of the clamping grooves 8 on the positioning disc 7 and the positions of the bottom of the inserted rods 6 in contact with the positioning disc 7 are arranged in a one-to-one correspondence manner, so that each inserted rod 6 on the slag fishing barrel 1 is fixed to the positioning disc 7. In some specific embodiments, the number of the insert rods 6 is less than or equal to the number of the slots 8 on the positioning plate 7, for example, the number of the insert rods 6 may be 4, 6.
In order to ensure that the slag removing device can smoothly enter the positioning disc 7 and ensure the tightness between the drill rod 2 and the slag removing barrel 1, in some specific embodiments, the inserting rod 6 forms an inclined angle of 30-60 degrees, for example, 45 degrees with the bottom of the slag removing barrel 1. In some preferred embodiments, as shown in fig. 5, the longitudinal section of the slot 8 in the positioning plate 7 is also obliquely arranged with the horizontal direction, and the inclination angle of the slot 8 on the positioning plate 7 with the horizontal direction is the same as the inclination angle formed by the insert rod 6 and the bottom of the slag dragging barrel 1, so that when the slag dragging barrel 1 is put into the hole bottom and falls on the positioning plate 7, the insert rod 6 can be smoothly clamped on the positioning plate 7, and it is ensured that the slag dragging barrel 1 can synchronously move downwards to drill under the driving of the drill bit 3 and the drill rod 2.
In some preferred embodiments, the puck 7 is circular as shown in fig. 4, and is arranged concentrically with the drill rod 2 on the same plane.
In some specific embodiments, a supporting wall 9 perpendicular to the positioning plate 7 is fixed on the periphery of the positioning plate 7, and the top of the supporting wall 9 is in contact with the inserted rod 6 for stably supporting the slag scooping barrel 1.
In the practical application process, the slag dragging barrel 1, the drill rod 2 and the drill bit 3 are connected according to the connection relationship and are placed in a drill hole to be drilled. After drilling begins, slurry in the inner cavity of the drill rod 2 is conveyed to the inner cavity of the drill bit 3 at a certain speed and then reaches the bottom of the hole, rock slag at the bottom of the hole is impacted by the slurry and then mixed into slurry, the slurry slowly floats upwards in the drilled hole, and after the slurry floats to the level of the slurry which is the same as the level of the outer barrel wall 10 of the slag salvaging barrel 1, the slurry mixed with the rock slag flows into the outer barrel wall 10 of the slag salvaging barrel 1 and the inner barrel wall 4 to form a space for containing the slurry. After a period of time, after the space in the slag dragging barrel 1 is filled with slurry, an operator can lift the slag dragging barrel 1 out of the drilled hole by lifting the lifting rod 5 connected to the outer barrel wall 10. Because the utility model discloses a drag for sediment bucket 1 and drilling rod 2 and do not belong to fixed connection such as welding, pulling the in-process carrying, drag for sediment bucket 1 outside drilling along the direction rebound of drilling rod 2, and drill bit 3, drilling rod 2 are whole to carry the position of carrying the in-process in drilling to keep motionless, through the disconnect-type design of dragging for sediment bucket 1 with drilling rod 2, realized drilling into the quick salvage of in-process mesopore basement rock sediment, improved the efficiency of construction, lightened personnel intensity of labour and cost of labor.
In some specific use processes, one end of the lifting rod 5 can be connected to hoisting equipment outside the hole through a rope such as a steel wire rope or a chain, for example, a winch, and the slag salvaging barrel 1 is lifted or pulled to the outside of the hole through the hoisting equipment, so that the working efficiency is further improved.
After rock slag in the slag salvaging barrel 1 is poured out, the slag salvaging barrel 1 is sleeved on the drill rod 2 in the drill hole, and the slag salvaging barrel 1 falls downwards into the drill hole along the direction of the drill rod 2. When the slag salvaging barrel 1 moves downwards to the bottom of the hole, the position of the slag salvaging barrel 1 is adjusted to enable the inserted link 6 at the bottom of the slag salvaging barrel to penetrate into the clamping groove 8 of the positioning disc 7 to complete positioning, and then the drilling is continued towards the bottom of the hole under the driving of the rotation of the drill rod 2.
Although the present invention has been described with reference to the above embodiments, the description of the embodiments is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a sediment device is dragged for to well bore bottom for well drilling which characterized in that: the hole bottom slag fishing device comprises a slag fishing barrel (1), a drill rod (2), a drill bit (3) and a lifting rod (5);
the drill rod (2) comprises an inner cavity for containing mud, the bottom end of the drill rod (2) is connected with the drill bit (3), and the inner cavity of the drill rod (2) is communicated with the inner cavity of the drill bit (3) so as to convey the mud to the drill bit (3);
the slag salvaging barrel (1) comprises an inner barrel wall (4) and an outer barrel wall (10), and the bottom edges of the inner barrel wall (4) and the outer barrel wall (10) are fixedly connected with the barrel bottom of the slag salvaging barrel (1); a space for containing rock slag is formed between the inner barrel wall (4) and the outer barrel wall (10); a through hole (11) is formed in the part, corresponding to the bottom of the inner barrel wall (4), of the slag fishing barrel (1), and the slag fishing barrel (1) is sleeved on the drill rod (2) through the through hole;
the outer barrel wall (10) of the slag salvaging barrel (1) is connected with the lifting rod (5) which is used for moving the slag salvaging barrel (1) up and down along the direction of the drill rod (2).
2. The downhole slag extractor of claim 1, wherein: the bottom of the slag salvaging barrel (1) is round.
3. The downhole slag extractor of claim 2, wherein: the through hole (11) is circular, and the inner barrel wall (4) surrounds the axial direction of the slag salvaging barrel (1) to form a cylinder shape; the ratio of the diameter of the through hole (11) to the diameter of the cylindrical bottom surface formed by the inner barrel wall (4) is 1 (1-5).
4. The downhole slag extractor of claim 3, wherein: the outer barrel wall (10) surrounds the axial direction of the slag salvaging barrel (1) to form a cylinder shape, and the diameter ratio of the outer barrel wall (10) to the diameter of the cylinder shape formed by the inner barrel wall (4) surrounding the axial direction of the slag salvaging barrel (1) is (1.5-10): 1.
5. The downhole slag extractor of claim 4, wherein: the height ratio of the outer barrel wall (10) of the slag salvaging barrel (1) to the inner barrel wall (4) is 1 (1-1.5).
6. A downhole slag tapping device according to any one of claims 1-5, wherein: the hole bottom slag fishing device also comprises a positioning structure, and the positioning structure comprises a positioning disc (7) and an inserted rod (6);
the positioning disc (7) is fixed at the lower part of the drill rod (2), and a plurality of clamping grooves (8) are formed in the positioning disc (7);
the bottom of the slag salvaging barrel (1) is connected with the top of the inserted link (6), and the bottom of the inserted link (6) detachably penetrates into the clamping groove (8) of the positioning plate (7) so as to position the slag salvaging barrel (1) above the positioning plate (7).
7. The downhole slag salvaging apparatus as recited in claim 6, wherein: the inserted bar (6) and the bottom of the slag salvaging barrel (1) form an inclined angle of 30-60 degrees.
8. The downhole slag extractor of claim 7, wherein: the inclined angle formed by the clamping groove (8) and the horizontal direction is the same as the inclined angle formed by the inserted link (6) and the bottom of the slag salvaging barrel (1).
9. The downhole slag salvaging apparatus as recited in claim 8, wherein: the number of the inserted rods (6) is less than or equal to that of the clamping grooves (8).
10. The downhole slag extractor of claim 9, wherein: the periphery of the positioning disc (7) is fixedly provided with a supporting wall (9) which is perpendicular to the positioning disc (7), and the top of the supporting wall (9) is in contact with the inserted bar (6) and is used for supporting the slag scooping barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023279848.2U CN214365965U (en) | 2020-12-29 | 2020-12-29 | Hole bottom slag fishing device for well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023279848.2U CN214365965U (en) | 2020-12-29 | 2020-12-29 | Hole bottom slag fishing device for well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214365965U true CN214365965U (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023279848.2U Active CN214365965U (en) | 2020-12-29 | 2020-12-29 | Hole bottom slag fishing device for well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214365965U (en) |
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2020
- 2020-12-29 CN CN202023279848.2U patent/CN214365965U/en active Active
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