CN109162659B - Drilling-dropping method for large drill bit of reverse drilling machine, inverted basket and drilling-dropping structure - Google Patents
Drilling-dropping method for large drill bit of reverse drilling machine, inverted basket and drilling-dropping structure Download PDFInfo
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- CN109162659B CN109162659B CN201811323908.0A CN201811323908A CN109162659B CN 109162659 B CN109162659 B CN 109162659B CN 201811323908 A CN201811323908 A CN 201811323908A CN 109162659 B CN109162659 B CN 109162659B
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- basket
- drill rod
- drilling machine
- inverted
- steel wire
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- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 239000011435 rock Substances 0.000 claims abstract description 6
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 241000542420 Sphyrna tudes Species 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 210000003128 head Anatomy 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a method for dropping a large drill bit of a reverse drilling machine, which comprises the following steps: through installing the basket of falling on the drilling rod, then fixed wire rope on the basket of falling, fix big drill bit with wire rope to keep somewhere the drilling rod through spacing ring is spacing, thereby keep somewhere the drilling rod and can not stab the rock wall when making the big drill bit of promotion. The invention has the advantages that: the use of the inverted basket plays a key role in handling accidents, solves the problem that the steel wire rope is fixed at the position, avoids the problem that personnel enter eyes to handle the butt joint of the drill rod, greatly improves the safety coefficient when handling accidents, and has considerable safety benefit. The method is simple and practical, and only 1 shift is used for finishing the treatment in actual operation. In addition, the retaining ring is adopted to cooperate with the tension of the two steel wire ropes, so that the indwelling drill rod can be pulled to the middle part of the small hole, and the reserved drill rod is prevented from being poked into the rock wall in the lifting process.
Description
Technical Field
The invention relates to the technical field of drill dropping treatment of large drill bits of a reverse drilling machine, in particular to a drill dropping method, a reverse lifting basket and a drill dropping structure of the large drill bits of the reverse drilling machine.
Background
When two or more holes are continuously drilled in the inverted well drill, the large drill bit is put down to the lower opening again after the large drill bit of the first hole is reamed, so that the problem of transferring the large drill bit is solved, the preparation of the second hole is enlarged, the labor intensity of workers is reduced, the construction time is shortened, but in the process of reversely unloading the large drill bit after the inverted well drill bit is put down in place, the drill rod is disjointed from the middle, after the drill rod is disjointed from the middle, the rest of the drill rod can be inclined due to the dead weight, and the butt joint of the drill rod with the disjointed drill rod cannot be restarted. How to lift the reserved drill rod and the drill bit left in the drill hole after the dislocation from the drill hole, reduce or eliminate potential safety hazards existing in the treatment process, and ensure the continuous construction of the residual engineering is a problem which needs to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of how to lift a drill rod and a drill bit which are left in a drill hole after the disconnection from the drill hole.
The invention solves the technical problems by the following technical proposal:
the method for dropping the large drill bit of the reverse drilling machine comprises the following steps:
1) Firstly, a plurality of drill rods connected to a drilling machine are removed, and only one drill rod is left to be provided with an inverted lifting basket;
2) Threading a steel wire rope in the inverted basket ring to ensure that the two sides of the steel wire rope are equal in length;
3) The drilling machine is connected with a plurality of originally detached drilling rods, the inverted basket is convenient to be at the position of the disconnection of the drilling rods, and the steel wire ropes clamped on the inverted basket slowly fall down to the lower opening of the small eye;
4) Two steel wire ropes which go down to the lower opening of the small eye fix the large drill bit;
5) Manufacturing a limiting ring, sleeving a drill rod and two steel wires in the limiting ring, putting two palm ropes on the limiting ring from the upper opening of a small hole, manually lifting the limiting ring to the upper end of an indwelling drill rod which is reserved on a large drill bit from the upper opening of the small hole, and taking the indwelling drill rod to the middle of the small hole by the limiting ring under the action of the tension of the two steel wires so as to prevent the drill rod from being poked into a rock wall in the lifting process;
6) Slowly lifting the drilling machine, and removing one drill rod, wherein the left drill rod is exposed out of the small hole, and the left drill rod does not directly extend into the drill rod hole of the drilling machine due to limited lifting stroke of the drilling machine;
7) The exposed indwelling drill rod is connected with a basket cap, the two hoists are locked with the basket cap through lifting points of the top plate anchor cable, after the two hoists are stressed, the power head of the drilling machine falls down, the lifting basket is inverted, the steel wire rope is loosened, and the steel wire rope is detached;
8) The inverted basket and the basket cap are connected and locked by an anchor chain, and the two hoists are slowly loosened at the same time until the anchor chain between the inverted basket and the basket cap is forced, and then the two hoists are taken off;
9) After the drilling machine is lifted to the drill rod slip groove to be exposed, the slip is clamped, the inverted basket and the basket cap are removed, and the drill rod is reserved on the butt joint of the power head of the drilling machine.
Preferably, in the step 2), the steel wire rope is fixed by a shoe-shaped gold ingot clamp at the position below the inverted basket ring.
Preferably, in the step 3), the two steel wire rope heads clamp the big drill bit with the shoe-shaped gold ingot clamps, and each side of the shoe-shaped gold ingot clamps are not less than 3.
The invention also provides a reverse lifting basket which is applied to the method for dropping the large drill bit of the reverse drilling machine; the inverted basket comprises a basket body, an inverted basket ring is fixed at the bottom of the basket body, and an external thread connected with a drill rod is arranged at the upper end of the inverted basket.
The invention also provides a large drill bit drill falling structure of the reverse drilling machine, which comprises a reverse lifting basket, a steel wire rope and a limiting ring; the inverted basket is fixed on the drill rod and gradually falls to the lower opening of the small eye through the drilling machine; the inverted basket comprises an inverted basket ring, a steel wire rope is penetrated in the ring, and two rope ends of the steel wire rope are respectively fixed with the large drill bit; an indwelling drill rod is fixed on the large drill bit; the limiting rings are sleeved on the two steel wire ropes and the indwelling drill rod, and are lifted to the upper end of the indwelling drill rod through the traction rope, so that the upper end of the indwelling drill rod is positioned in the middle of the lower opening of the small eye.
The invention has the advantages that:
the use of the inverted basket plays a key role in handling accidents, solves the problem that the steel wire rope is fixed at the position, avoids the problem that personnel enter eyes to handle the butt joint of the drill rod, greatly improves the safety coefficient when handling accidents, and has considerable safety benefit. The method is simple and practical, and only 1 shift is used for finishing the treatment in actual operation.
In addition, the retaining ring is adopted to cooperate with the tension of the two steel wire ropes, so that the indwelling drill rod can be pulled to the middle position of the small hole, and the reserved drill rod is prevented from being poked into the rock wall in the lifting process.
Drawings
FIG. 1 is a schematic view of the structure of an inverted basket according to embodiment 1 of the present invention;
fig. 2 is a schematic view of the construction structure of embodiment 2 of the present invention.
Detailed Description
For a further understanding and appreciation of the structural features and advantages achieved by the present invention, the following description is provided in connection with the accompanying drawings, which are presently preferred embodiments and are incorporated in the accompanying drawings, in which:
example 1
As shown in fig. 1, an inverted basket 1 comprises a basket body 11, wherein the basket body 11 is a section of steel column, an inverted basket ring 12 is fixedly welded at the bottom of the basket body 11, and an external thread 13 connected with a drill rod is arranged at the upper end of the inverted basket 1. The inverted basket ring 12 is formed by bending steel bars and welding the basket body 11.
Example 2
As shown in fig. 2, the method for dropping the large drill bit of the back drilling machine is characterized in that: the method comprises the following steps:
step 1, firstly, 19 out of 20 drill rods 2 connected to a drilling machine 4 are removed, and only one drill rod 2 is left to be provided with an inverted lifting basket 1;
step 2, threading a steel wire rope 3 with the length of 90m and the diameter of 18.5mm in the inverted basket ring 12 to ensure that the two sides of the steel wire rope 3 are equal in length; the steel wire rope 3 is fixed by a shoe-shaped gold ingot clamp at the lower part of the inverted basket ring 12;
step 3, the drilling machine 4 is connected with 19 drill rods 2 which are originally unloaded, the inverted basket 1 is moved to the position where the drill rods 2 are disjointed, and the steel wire ropes 3 clamped on the inverted basket 1 slowly fall down to the lower opening of the small eye;
step 4, clamping the big drill bit 5 by using ingot clamps at the two steel wire ropes 3 rope heads at the lower opening of the small eye, wherein the number of ingot clamps at each side is not less than 3;
step 5, manufacturing a phi 500mm limiting ring 6 by using the steel wire ropes 3, sleeving the drill rod 2 and the two steel wire ropes 3 in the limiting ring 6, putting two palm ropes 7 on the limiting ring 6 from the upper opening of a small hole, manually lifting the limiting ring 6 to the upper end of an indwelling drill rod 8 which is reserved on the large drill bit 5 from the upper opening of the small hole, and taking the indwelling drill rod 8 to the middle of the small hole by the limiting ring 6 under the tension of the two steel wire ropes 3 to prevent the drill rod 2 from being poked into a rock wall in the lifting process;
step 6, slowly lifting the drilling machine 4, and detaching 19 drill rods 2, wherein the left drill rod 8 is exposed out of the small hole, and the left drill rod 8 does not directly extend into the hole of the drill rod 2 of the drilling machine 4 due to limited lifting stroke of the drilling machine 4;
step 7, connecting the exposed indwelling drill rod 8 with a basket cap, locking two 5T hoists with the basket cap through lifting points of the top plate anchor rope, falling the power head of the drilling machine 4 after the two hoists are stressed, loosening the steel wire rope 3 on the basket 1, unloading the shoe-shaped gold ingot card on the steel wire rope 3, and cutting off the steel wire rope 3 by using a wire cutter;
step 8, connecting and locking the inverted basket 1 and the basket cap by using an anchor chain, and removing the two hoists after the anchor chain between the inverted basket 1 and the basket cap is strong;
and 9, after the drilling machine 4 is lifted to the condition that the slip groove of the drill rod 2 is exposed, clamping the slip, removing the inverted basket 1 and the basket cap, and butting the power head of the drilling machine 4 with the reserved drill rod 8.
Example 3
The large drill bit 5 drill falling structure of the reverse drilling machine comprises a reverse lifting basket 1, a steel wire rope 3 and a limiting ring 6; the inverted basket 1 is fixed on the drill rod 2 and gradually falls to the lower opening of the small eye through the drilling machine 4; the inverted basket 1 comprises an inverted basket ring 12, a steel wire rope 3 is penetrated in the ring, and two rope ends of the steel wire rope 3 are respectively fixed with a large drill bit 5; an indwelling drill rod 8 is fixed on the large drill bit 5; the limiting ring 6 is sleeved on the two steel wire ropes 3 and the indwelling drill rod 8, and is lifted to the upper end of the indwelling drill rod 8 through the traction rope, so that the upper end of the indwelling drill rod 8 is positioned in the middle of the lower opening of the small eye.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The method for dropping the large drill bit of the reverse drilling machine is characterized by comprising the following steps of: the method comprises the following steps:
1) Firstly, a plurality of drill rods connected to a drilling machine are removed, and only one drill rod is left to be provided with an inverted lifting basket;
2) Threading a steel wire rope in the inverted basket ring to ensure that the two sides of the steel wire rope are equal in length;
3) The drilling machine is connected with a plurality of originally detached drilling rods, the inverted basket is convenient to be at the position of the disconnection of the drilling rods, and the steel wire ropes clamped on the inverted basket slowly fall down to the lower opening of the small eye;
4) Two steel wire ropes which go down to the lower opening of the small eye fix the large drill bit;
5) Manufacturing a limiting ring, sleeving a drill rod and two steel wires in the limiting ring, putting two palm ropes on the limiting ring from the upper opening of a small hole, manually lifting the limiting ring to the upper end of an indwelling drill rod which is reserved on a large drill bit from the upper opening of the small hole, and taking the indwelling drill rod to the middle of the small hole by the limiting ring under the action of the tension of the two steel wires so as to prevent the drill rod from being poked into a rock wall in the lifting process;
6) Slowly lifting the drilling machine, and removing one drill rod, wherein the left drill rod is exposed out of the small hole, and the left drill rod does not directly extend into the drill rod hole of the drilling machine due to limited lifting stroke of the drilling machine;
7) The exposed indwelling drill rod is connected with a basket cap, the two hoists are locked with the basket cap through lifting points of the top plate anchor cable, after the two hoists are stressed, the power head of the drilling machine falls down, the lifting basket is inverted, the steel wire rope is loosened, and the steel wire rope is detached;
8) The inverted basket and the basket cap are connected and locked by an anchor chain, and the two hoists are slowly loosened at the same time until the anchor chain between the inverted basket and the basket cap is forced, and then the two hoists are taken off;
9) After the drilling machine is lifted to the drill rod slip groove to be exposed, the slip is clamped, the inverted basket and the basket cap are removed, and the drill rod is reserved on the butt joint of the power head of the drilling machine.
2. The method for dropping the large drill bit of the back drilling machine according to claim 1, wherein the method comprises the following steps: in the step 2), a shoe-shaped gold ingot clamp is used for fixing the steel wire rope below the inverted basket ring.
3. The method for dropping the large drill bit of the back drilling machine according to claim 1, wherein the method comprises the following steps: in the step 3), the big drill bit is clamped by the two steel wire rope heads through the shoe-shaped gold ingot clamps, and the number of the shoe-shaped gold ingot clamps on each side is not less than 3.
4. An inverted basket, characterized in that: a method for dropping a large drill bit of a back drilling machine as claimed in any one of claims 1 to 3; the inverted basket comprises a basket body, an inverted basket ring is fixed at the bottom of the basket body, and an external thread connected with a drill rod is arranged at the upper end of the inverted basket.
5. The utility model provides a big drill bit of anti-drilling machine falls and bores structure which characterized in that: comprising the inverted basket, a wire rope and a limiting ring according to claim 4; the inverted basket is fixed on the drill rod and gradually falls to the lower opening of the small eye through the drilling machine; a steel wire rope is penetrated in the ring of the inverted basket ring, and two rope ends of the steel wire rope are respectively fixed with the large drill bit; an indwelling drill rod is fixed on the large drill bit; the limiting rings are sleeved on the two steel wire ropes and the indwelling drill rod, and are lifted to the upper end of the indwelling drill rod through the traction rope, so that the upper end of the indwelling drill rod is positioned in the middle of the lower opening of the small eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323908.0A CN109162659B (en) | 2018-11-08 | 2018-11-08 | Drilling-dropping method for large drill bit of reverse drilling machine, inverted basket and drilling-dropping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323908.0A CN109162659B (en) | 2018-11-08 | 2018-11-08 | Drilling-dropping method for large drill bit of reverse drilling machine, inverted basket and drilling-dropping structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162659A CN109162659A (en) | 2019-01-08 |
| CN109162659B true CN109162659B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811323908.0A Active CN109162659B (en) | 2018-11-08 | 2018-11-08 | Drilling-dropping method for large drill bit of reverse drilling machine, inverted basket and drilling-dropping structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492535B (en) * | 2022-09-02 | 2023-10-03 | 中国矿业大学(北京) | Combined drill drop prevention matched equipment and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104926U (en) * | 1991-09-26 | 1992-05-20 | 张万义 | Well grappling means |
| CN201301678Y (en) * | 2008-12-01 | 2009-09-02 | 中铁大桥局集团第四工程有限公司 | Bored pile drill bit picker |
| CN102182399A (en) * | 2011-04-28 | 2011-09-14 | 徐守田 | Construction method and equipment for reverse circulation drill to drill hole, hammer to form hole, expand hole and remove slag |
| CN105888595A (en) * | 2016-06-29 | 2016-08-24 | 中国冶集团有限公司 | Special device and method for fishing drill bit of rotary drilling rig in case of drilling blocking |
| CN207161028U (en) * | 2017-07-05 | 2018-03-30 | 天津市公路工程总公司 | Drill bit fishing device with drilling rod |
| CN207920570U (en) * | 2017-11-10 | 2018-09-28 | 杨田田 | A kind of directional well fishing device |
-
2018
- 2018-11-08 CN CN201811323908.0A patent/CN109162659B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104926U (en) * | 1991-09-26 | 1992-05-20 | 张万义 | Well grappling means |
| CN201301678Y (en) * | 2008-12-01 | 2009-09-02 | 中铁大桥局集团第四工程有限公司 | Bored pile drill bit picker |
| CN102182399A (en) * | 2011-04-28 | 2011-09-14 | 徐守田 | Construction method and equipment for reverse circulation drill to drill hole, hammer to form hole, expand hole and remove slag |
| CN105888595A (en) * | 2016-06-29 | 2016-08-24 | 中国冶集团有限公司 | Special device and method for fishing drill bit of rotary drilling rig in case of drilling blocking |
| CN207161028U (en) * | 2017-07-05 | 2018-03-30 | 天津市公路工程总公司 | Drill bit fishing device with drilling rod |
| CN207920570U (en) * | 2017-11-10 | 2018-09-28 | 杨田田 | A kind of directional well fishing device |
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| Publication number | Publication date |
|---|---|
| CN109162659A (en) | 2019-01-08 |
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