CN110685629B - Tool for cleaning and fishing small-diameter underground rock slag in deep well section - Google Patents
Tool for cleaning and fishing small-diameter underground rock slag in deep well section Download PDFInfo
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- CN110685629B CN110685629B CN201911015397.0A CN201911015397A CN110685629B CN 110685629 B CN110685629 B CN 110685629B CN 201911015397 A CN201911015397 A CN 201911015397A CN 110685629 B CN110685629 B CN 110685629B
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- supporting
- spring piece
- joint
- fixing spring
- rock
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- 239000002893 slag Substances 0.000 title claims abstract description 100
- 239000011435 rock Substances 0.000 title claims abstract description 85
- 238000004140 cleaning Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000013049 sediment Substances 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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 utility model provides a deep well section minor bore is rock sediment in pit clearly drags for instrument, belongs to drilling equipment technical field, solves deep well section minor bore is rock sediment in pit clearly drags for instrument single drag for the technical problem that the sediment volume is little, drag for the sediment inefficiency, thick rock sediment can't clearly drag for, and the solution is: a thrust bearing is arranged on the water distribution joint, a supporting and fixing spring leaf is arranged on the thrust bearing through a supporting and fixing spring leaf joint, and a rock slag containing pipe is fixedly arranged on the lower end surface of a lower joint of the supporting and fixing spring leaf; the upper end of the driving shaft penetrates through a lower joint of a supporting and fixing spring piece, a thrust bearing and an upper joint of the supporting and fixing spring piece in sequence and extends into a water distribution joint, the lower end of the driving shaft penetrates through the lower joint of the supporting and fixing spring piece and extends into a rock slag containing pipe, the lower end of the driving shaft is fixedly connected with the upper end of the driven shaft, and the other end of the driven shaft is fixedly connected with a screw of a spiral wing drill through a coupler. The invention has the advantages of large single dredging amount, high dredging efficiency, simple operation and relatively reduced drilling times under the condition of drilling.
Description
Technical Field
The invention belongs to the technical field of drilling equipment, and particularly relates to a small-caliber underground rock residue cleaning and fishing tool for a deep well section.
Background
When the deep hole section with small caliber and complete leakage is drilled comprehensively, the cut rock slag can not be taken out of the ground effectively by the circulating flushing fluid and sinks to the bottom of the well after the pump is stopped, so that the buried drilling accident is easily caused, and then huge economic loss is brought. In order to ensure the safety of drilling construction and prevent accidents in a well, the drilling tool must be cleaned and fished in time to ensure the bottom of the hole to be clean.
However, the traditional rock slag cleaning and fishing tool has the following disadvantages:
1. shape of rock slag containing space: the central drill pipe and the outer rock slag pipe form a concentric annular space. The disadvantages are as follows: the hole diameter of the deep hole section is reduced, the outer diameter of the rock slag pipe is reduced, and the outer diameter of the central drill rod is generally unchanged (matched with a drill floor in a 'three-hanging-one-clamping mode'), so that the rock slag accommodating space and the single slag fishing amount are very small, even the rock slag pipe cannot be arranged, the slag fishing operation cannot be carried out, and great hole inner accident risk is brought to the deep hole section drilling;
2. a rock slag flushing and fishing mode: flushing fluid is pumped into the bottom of the slag dragging drilling tool through the central drill rod, and carries rock slag to return to the top end of the rock slag pipe from the outer ring gap and then sink into the rock slag pipe. The disadvantages are as follows: the rock slag pipe is longer (8-9 m, in order to increase the single slag scooping amount to the maximum extent), the return path on the rock slag is long, and the rock slag with thicker particles and heavier weight is not easy to flush to the upper port of the rock slag pipe and fall into the rock slag pipe. Not only the single slag dragging is inefficient, but also the coarse rock slag can not be completely dragged and cleaned.
Disclosure of Invention
The invention provides a non-water-flushing type deep well section small-caliber underground rock residue cleaning and fishing tool, aiming at overcoming the defects in the prior art and solving the technical problems that the deep well section small-caliber underground rock residue cleaning and fishing tool is small in single-time residue fishing amount, low in residue fishing efficiency and incapable of thoroughly fishing and cleaning thick rock residues.
The invention is realized by the following technical scheme.
The utility model provides a deep well section minor-caliber is rock sediment clearly drags for instrument in pit, it includes that the branch water connects, props solid spring leaf, rock sediment and holds pipe and spiral wing drill bit, wherein:
the upper end of the water distribution joint is connected with a drill rod column, a diameter-protecting sleeve is sleeved on the outer circular surface of the lower part of the outer wall of the water distribution joint, an upper thrust disc of a thrust bearing is installed on the lower end surface of the water distribution joint, a lower thrust disc of the thrust bearing is installed on an upper connector of a supporting and fixing spring piece, one end of the supporting and fixing spring piece is fixedly installed on the upper connector of the supporting and fixing spring piece, the other end of the supporting and fixing spring piece is fixedly installed on a lower connector of the supporting and fixing spring piece, at least three supporting and fixing spring pieces are uniformly arranged along the circumferential direction of the upper connector of the supporting and fixing spring piece, and rock slag accommodating pipes are fixedly installed on the end surface of the lower side of the lower connector of the supporting and fixing spring piece; the upper end of the driving shaft sequentially penetrates through a lower connector of a supporting and fixing spring leaf, the upper connector of the supporting and fixing spring leaf and a thrust bearing and extends into the water distribution connector, the lower end of the driving shaft penetrates through the lower connector of the supporting and fixing spring leaf and extends into a rock slag containing pipe, the driving shaft positioned in the rock slag containing pipe is fixedly connected with one end of the driven shaft, and the other end of the driven shaft is fixedly connected with a screw rod of the spiral wing drill bit through a coupler; the propping spring piece drives the rock slag containing pipe to move downwards along the axial direction through the lower joint of the propping spring piece, during slag removal operation, the outer end part of the spiral wing drill bit extends out of the outer part of the rock slag containing pipe, and after the slag removal operation is finished, the outer end part of the spiral wing drill bit retracts into the inner part of the rock slag containing pipe.
Further, the tail end of the rock slag containing pipe is provided with a containing pipe protecting drill bit.
Further, according to the slag dragging effect, the helix angle of the upper fin of the spiral wing drill bit ranges from 15 degrees to 25 degrees.
Compared with the prior art, the invention has the beneficial effects that:
1. the automatic soil-lifting and slag-lifting principle of a drilling tool with large-lifting-angle spiral wings for shallow dry or semi-dry sandy soil layers is ingeniously used for slag-lifting and slag-discharging operation of deep hole sections in a water-saturated state.
2. The spiral wing drill bit is externally provided with the rock slag containing pipe, and is supported and fixed on the hole wall during normal slag fishing, so that sufficient axial friction force is provided for rock slag, the automatic slag lifting condition of the spiral wing drill bit in the rotating process is ensured, and the failure of slag fishing caused by the fact that the rock slag is not washed in the drill lifting process is effectively prevented.
3. A 'transfer thrust bearing' and a 'supporting and fixing spring piece' are arranged between a 'lower spring piece clamping seat' (or called a rock slag containing pipe joint) and a 'water distribution joint', so that the rock slag containing pipe does not rotate relatively during slag fishing operation, and rock slag at the bottom of a hole is smoothly driven by a spiral wing drill bit to rise into the rock slag containing pipe.
4. The slag dragging operation is carried out under the working condition of 'dry drilling', namely: after the slag dragging tool is lowered to the rock slag deposition surface, slurry circulation is stopped, pressurization and rotation are carried out simultaneously, and rock slag is continuously guided into the rock slag containing pipe through the spiral wing drill bit. Because the water content of the rock slag is lower, the rock slag is not easy to run off, and the storage state is good.
Drawings
FIG. 1 is a schematic sectional view of the present invention.
In the figure, 1 is a water diversion joint, 2 is a gauge protection sleeve, 3 is a thrust bearing, 4 is a supporting and fixing spring piece upper joint, 5 is a supporting and fixing spring piece, 6 is a supporting and fixing spring piece lower joint, 7 is a driving shaft, 8 is a driven shaft, 9 is a rock slag containing pipe, 10 is a coupler, 11 is a spiral wing drill bit, and 12 is a containing pipe protective drill bit.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
The deep well section small-caliber underground rock slag cleaning and fishing tool shown in figure 1 comprises a water diversion connector 1, a supporting and fixing spring piece 5, a rock slag containing pipe 9 and a spiral wing drill bit 11, wherein:
the upper end of the water distribution joint 1 is connected with a drill rod column, a diameter-protecting sleeve 2 is sleeved on the outer circular surface of the lower part of the outer wall of the water distribution joint 1, an upper thrust disc of a thrust bearing 3 is installed at the lower end surface of the water distribution joint 1, a lower thrust disc of the thrust bearing 3 is installed on an upper supporting and fixing spring piece connector 4, one end of a supporting and fixing spring piece 5 is fixedly installed on the upper supporting and fixing spring piece connector 4, the other end of the supporting and fixing spring piece 5 is fixedly installed on a lower supporting and fixing spring piece connector 6, at least three supporting and fixing spring pieces 5 are uniformly arranged along the circumferential direction of the upper supporting and fixing spring piece connector 4, and rock slag accommodating pipes 9 are fixedly installed on the end surface of the lower side of the lower supporting and fixing spring piece connector 6; the upper end of a driving shaft 7 sequentially penetrates through a lower supporting spring piece joint 6, a supporting spring piece 5, an upper supporting spring piece joint 4 and a thrust bearing 3 and extends into a water distribution joint 1, the lower end of the driving shaft 7 penetrates through the lower supporting spring piece joint 6 and extends into a rock slag containing pipe 9, the driving shaft 7 positioned in the rock slag containing pipe 9 is fixedly connected with one end of a driven shaft 8, and the other end of the driven shaft 8 is fixedly connected with a screw of a spiral wing drill bit 11 through a coupler 10; the supporting spring piece 5 drives the rock slag containing pipe 9 to move downwards along the axial direction through the supporting spring piece lower joint 6, during slag cleaning operation, the outer end part of the spiral wing drill bit 11 extends out of the rock slag containing pipe 9, and after the slag cleaning operation is finished, the outer end part of the spiral wing drill bit 11 retracts into the rock slag containing pipe 9.
Further, the end of the rock slag containing pipe 9 is provided with a containing pipe protective drill bit 12.
Further, according to the slag dragging effect, the helix angle of the upper fin of the spiral wing drill bit ranges from 15 degrees to 25 degrees. The invention is suitable for rock slag cleaning and fishing operation with the standard bore phi 194 mm-phi 215mm of petroleum, and the working principle is as follows:
when the invention is put into the rock slag surface in the hole, the slag salvaging drilling tool is pressurized, the four supporting and fixing spring pieces 5 are compressed and externally expanded and supported with the hole wall, the rock slag containing pipe 9 basically does not rotate under the action of a transfer mechanism between the drilling tool joint and the outer pipe joint, the spiral wing drill bits 11 in the pipe slowly rotate at a constant speed, the automatic slag rising condition of the spiral wing drill bits 11 is met, and the sediment at the bottom of the hole is continuously led into the rock slag containing pipe 9 through the spiral wing sources until the whole pipe is filled. The drilling tool is lifted after the slag dragging operation is finished, the supporting spring piece 5 automatically resets and is separated from the hole wall under the action of the containing pipe 9 and the weight of rock slag, the supporting spring piece 5 resets, the rock slag containing pipe 9 descends, the spiral wing drill bit 11 is contracted in the rock slag containing pipe 9 to block a rock slag falling channel, and rock slag entering the pipe is enabled to fall into the hole again due to the fact that liquid flow in the hole erodes during the drilling lifting process. After the slag dragging drilling tool is lifted out of the hole, the spiral wing drill bit 11 at the bottom is removed, and the solid rock slag entering the rock slag containing pipe 9 can be automatically poured out.
The operation key points in the using process of the invention are as follows:
1. the added drilling pressure is enough to compress the supporting spring piece 5, the rock slag containing pipe 9 is guaranteed to be supported on the hole wall and is kept to be not rotated when the rock slag containing pipe is used for dredging operation, and the rock slag is smoothly lifted by matching with the spiral wing drill bit 11.
2. Before each drilling, whether the supporting spring piece 5 and the transfer mechanism are flexible and reliable is carefully checked, and design action is guaranteed to be completed underground.
3. And a non-circulating dry drilling operation is adopted in the slag dragging process, so that the slag lifting efficiency is improved.
4. And (5) directly lifting the drill after the rock slag removing operation is finished.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (3)
1. The utility model provides a clear instrument of dragging for of deep well section small-bore underground rock sediment, it includes that water distribution joint (1), support solid spring leaf (5), rock sediment hold pipe (9) and spiral wing drill bit (11), its characterized in that:
the upper end of the water distribution joint (1) is connected with a drill string, a diameter-protecting sleeve (2) is sleeved on the outer circular surface of the lower part of the outer wall of the water distribution joint (1), an upper thrust disc of a thrust bearing (3) is installed at the lower end surface of the water distribution joint (1), a lower thrust disc of the thrust bearing (3) is installed on an upper supporting and fixing spring piece joint (4), one end of a supporting and fixing spring piece (5) is fixedly installed on the upper supporting and fixing spring piece joint (4), the other end of the supporting and fixing spring piece (5) is fixedly installed on a lower supporting and fixing spring piece joint (6), at least three supporting and fixing spring pieces (5) are uniformly arranged along the circumferential direction of the upper supporting and fixing spring piece joint (4), and rock slag accommodating pipes (9) are fixedly installed on the end surface of the lower side of the lower supporting and fixing spring piece joint (6); the upper end of a driving shaft (7) sequentially penetrates through a lower supporting spring piece connector (6), a supporting spring piece (5), an upper supporting spring piece connector (4) and a thrust bearing (3) and extends into a water distribution connector (1), the lower end of the driving shaft (7) penetrates through a lower supporting spring piece connector (6) and extends into a rock slag containing pipe (9), the driving shaft (7) in the rock slag containing pipe (9) is fixedly connected with one end of a driven shaft (8), and the other end of the driven shaft (8) is fixedly connected with a screw of a spiral wing drill bit (11) through a coupler (10); the supporting spring piece (5) drives the rock slag containing pipe (9) to move downwards along the axial direction through the supporting spring piece lower connector (6), during slag removing operation, the outer end part of the spiral wing drill bit (11) extends out of the rock slag containing pipe (9), and after the slag removing operation is finished, the outer end part of the spiral wing drill bit (11) retracts into the rock slag containing pipe (9).
2. The deep well section small-caliber underground rock slag cleaning and fishing tool according to claim 1, characterized in that: and the tail end of the rock slag containing pipe (9) is provided with a containing pipe protective drill bit (12).
3. The deep well section small-caliber underground rock slag cleaning and fishing tool according to claim 1, characterized in that: according to the slag dragging effect, the value range of the spiral lead angle of the upper wing piece of the spiral wing drill bit (11) is as follows: 15-25 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015397.0A CN110685629B (en) | 2019-10-24 | 2019-10-24 | Tool for cleaning and fishing small-diameter underground rock slag in deep well section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015397.0A CN110685629B (en) | 2019-10-24 | 2019-10-24 | Tool for cleaning and fishing small-diameter underground rock slag in deep well section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110685629A CN110685629A (en) | 2020-01-14 |
| CN110685629B true CN110685629B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911015397.0A Active CN110685629B (en) | 2019-10-24 | 2019-10-24 | Tool for cleaning and fishing small-diameter underground rock slag in deep well section |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502581B (en) * | 2020-04-27 | 2023-09-01 | 深圳大学 | A dry drilling slag removal operation device and its use method |
| CN111360241A (en) * | 2020-04-29 | 2020-07-03 | 烟台盛利达工程技术有限公司 | Slag dragging mechanical arm, robot and slag dragging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342484A1 (en) * | 1993-12-13 | 1995-04-06 | Siemens Nixdorf Inf Syst | Hand drill |
| CN204627415U (en) * | 2015-05-05 | 2015-09-09 | 平顶山市铁福来机电设备有限公司 | A kind of way-type drilling unit for weak seam boring |
| CN208918499U (en) * | 2018-09-17 | 2019-05-31 | 海洋石油工程股份有限公司 | The fishing tool of sundries in dilatory drill is logged in for submarine pipeline Directional Drilling |
| CN110173226A (en) * | 2019-05-28 | 2019-08-27 | 赵玉研 | A kind of low fugitive dust boring device of water conservancy construction |
-
2019
- 2019-10-24 CN CN201911015397.0A patent/CN110685629B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4342484A1 (en) * | 1993-12-13 | 1995-04-06 | Siemens Nixdorf Inf Syst | Hand drill |
| CN204627415U (en) * | 2015-05-05 | 2015-09-09 | 平顶山市铁福来机电设备有限公司 | A kind of way-type drilling unit for weak seam boring |
| CN208918499U (en) * | 2018-09-17 | 2019-05-31 | 海洋石油工程股份有限公司 | The fishing tool of sundries in dilatory drill is logged in for submarine pipeline Directional Drilling |
| CN110173226A (en) * | 2019-05-28 | 2019-08-27 | 赵玉研 | A kind of low fugitive dust boring device of water conservancy construction |
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| Publication number | Publication date |
|---|---|
| CN110685629A (en) | 2020-01-14 |
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