CN112727352A - Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof - Google Patents
Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof Download PDFInfo
- Publication number
- CN112727352A CN112727352A CN202110116941.1A CN202110116941A CN112727352A CN 112727352 A CN112727352 A CN 112727352A CN 202110116941 A CN202110116941 A CN 202110116941A CN 112727352 A CN112727352 A CN 112727352A
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- Prior art keywords
- hole hammer
- drill rod
- drilling
- hole
- reverse circulation
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- 238000005553 drilling Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002893 slag Substances 0.000 claims abstract description 46
- 239000011435 rock Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
-
- 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
-
- 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
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary drilling rig driving a gas lift reverse circulation down-the-hole hammer drilling machine. The drilling machine comprises a rotary drill, a cluster down-the-hole hammer and an air compressor. The rotary drilling drives the drill bit to rotate, the down-the-hole hammer impacts the drilling, and the slag discharge can be in a mud gas-lift reverse circulation mode. The invention overcomes the defects that the down-the-hole hammer drilling machine in the prior art has small drilling diameter, large vibration force and easy hole collapse, a pile casing is required to follow, and a large-diameter ultra-deep covering layer rock-entering drilling pile cannot be constructed, and the large rotary drilling machine is heavy, high in manufacturing cost, low in construction speed and high in cost; the device is simple and light, the slag discharge can be gas lift reverse circulation, a mud retaining wall is adopted, a retaining cylinder is not required to follow, and the ultra-large diameter rock entering pile hole of an ultra-deep covering layer can be constructed. The invention also discloses a using method of the rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drilling rig.
Description
Technical Field
The invention relates to the technical field of a submersible cluster hole hammer drilling machine, in particular to a rotary drilling machine driving a gas lift reverse circulation submersible hole hammer drilling machine. The invention also discloses a use method of the rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drilling rig.
Background
The existing large rotary drilling rig and the existing down-the-hole hammer drilling rig driven by a double-screw drilling rig to rotate have the defects that the slag discharge is air circulation, the drilling diameter is small (generally not more than 1 meter), mud cannot be used for protecting the wall, a protecting cylinder must be used for following, and a deep covering layer rock-entering drilling pile cannot be constructed; the existing rotary drilling rig entering the rock is heavy in equipment, high in manufacturing cost, low in construction speed and high in cost; the air-lift reverse circulation down-the-hole hammer drill disclosed by the invention has the advantages that the structure of the drill bit is complex, the manufacturing cost is high, particularly, the drill rod is manually installed and dismantled section by section, and the effect is very low.
Therefore, there is a need to develop a down-the-hole hammer drill which has the advantages of low manufacturing cost, large diameter, high construction speed and low cost and can construct a large-diameter ultra-deep overburden rock-entering drilling pile.
Disclosure of Invention
The invention aims to provide a rotary drilling rig driving a gas lift reverse circulation down-the-hole hammer drill, which is a basement rock soil drilling machine, and the equipment can be used for constructing large-diameter ultra-deep overburden rock-entering drill holes; the defects that the full-casing follow-up cost of the equipment is high, the diameter of a drilled hole is small, and an ultra-deep covering rock-entering drilled pile cannot be constructed in the prior art are overcome.
The second purpose of the invention is to provide the using method of the rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drilling machine, which is high in construction speed and low in cost.
In order to achieve the first object of the present invention, the technical solution of the present invention is: the utility model provides a dig soon and bore drive gas lift reverse circulation down-the-hole hammer rig which characterized in that: the device comprises a cluster down-the-hole hammer, a power head, a pile frame, a drill rod, a slurry discharge pipe, an air inlet pipe, a steel wire rope, an inner tap, an inner air inlet pipe, a slag suction pipe and an exhaust pipe;
the drill rods are multilayer telescopic drill rods, the inner layer drill rod can extend downwards under the action of gravity, and the top end of the inner layer drill rod reaches the lower end of the adjacent outer layer drill rod;
the outermost drill rod of the drill rod is hung on the power head on the pile frame, and the power head drives the outermost drill rod of the drill rod to drive the cluster down-the-hole hammer to rotate;
the steel wire rope penetrates through the outer layer drill rod and is fixed on the inner faucet at the top of the central drill rod of the drill rod;
the air inlet pipe penetrates through the outer drill rod, enters the inner faucet, is connected with the inner air inlet pipe and enters the down-the-hole hammer of the cluster down-the-hole hammer;
an exhaust pipe on the cluster down-the-hole hammer is connected with an exhaust channel in the drill rod and is connected into the exhaust pipe through the inner tap;
and a slag suction port in the cluster down-the-hole hammer is connected with the slag suction pipe, enters a slurry discharge channel in a central drill rod of the drill rod, is connected with the slurry discharge pipe through the inner tap and is then connected to a ground slurry treatment system.
In the technical scheme, each down-the-hole hammer on the cluster down-the-hole hammer is provided with a closed outer sleeve, exhaust of the down-the-hole hammer is collected and exhausted into an exhaust channel and then exhausted into the atmosphere through an exhaust pipe, and no exhaust hole is formed in the bottom of the down-the-hole hammer.
In order to achieve the second object of the present invention, the technical solution of the present invention is: the use method of the rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drilling machine is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the following steps: assembling;
connecting the steel wire rope with the inner faucet through the outer layer of the drill rod;
the air inlet pipe penetrates through the outer layer of the drill rod and is connected with an air inlet joint on the inner faucet, and the other end of the air inlet pipe is communicated with an air compressor;
communicating the deslagging pipe with the inner faucet and a ground slurry treatment system, and connecting the exhaust pipe with the inner faucet;
step two: hoisting;
the wire rope suspends the drill rod and other drilling tools to a drilling station;
step three: drilling;
starting the power head to drive the cluster down-the-hole hammer to rotate;
starting an air compressor to enable the cluster down-the-hole hammer to impact rock drilling, discharging residual air into an exhaust channel, discharging the residual air into the atmosphere through an exhaust pipe, injecting high-pressure air into the slag suction pipe to form mud gas lift reverse circulation, and discharging drilling slag through the drill rod and the slurry discharge pipe to realize full-section drilling of the foundation by the down-the-hole hammer; pumping reverse circulation slag discharge or pumping positive circulation slag discharge can also be adopted;
the drill rod is put in and put down while drilling until the drilling is finished;
the rotary drilling rig has the function of quickly switching the rotary drilling tool and the down-the-hole hammer drilling tool.
In the technical scheme, when the drilled hole is a wet hole, the cluster down-the-hole hammer exhausts air and discharges into the slag suction pipe or injects high-pressure air into the slag discharge pipe to be converged with mud, so that mud gas-lift reverse circulation slag discharge is formed;
when the drilling hole is a dry hole without water or a shallow hole is drilled, the shooting and sucking device is arranged in the slag sucking pipe, and high-pressure air is injected or a down-the-hole hammer exhausts the air to pass through, so that air reverse circulation or slurry reverse circulation slag removal is formed.
The invention has the following advantages:
(1) according to the invention, the size of a single down-the-hole drill on the cluster down-the-hole hammer is smaller, the vibration force to a well wall is very small, the drill bit does not collapse the hole wall due to vibration, the down-the-hole hammer is exhausted, wrapped, collected and completely discharged into an exhaust pipe, mud is discharged in a circulating manner, a mud retaining wall is adopted, a retaining cylinder is not required to follow, the foundation covering layer is ensured not to collapse, and a large-diameter ultra-deep covering layer can be constructed to enter a rock well;
(2) the drill rod can not be pressurized, the length is not limited, the drilling depth is very deep, and the drill rod can be used for ultra-deep pile hole drilling construction;
(3) according to the invention, because the drilling bit pressure and the torque of the down-the-hole hammer are smaller, the rotary drilling rig used in a matched manner is smaller, and the equipment cost is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1-cluster down-the-hole hammer, 2-power head, 3-pile frame, 4-drill rod, 5-slurry discharge pipe, 6-air inlet pipe, 7-steel wire rope, 8-internal tap, 9-internal air inlet pipe, 10-slag suction pipe and 11-exhaust pipe.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: a rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drill comprises a cluster down-the-hole drill 1, a power head 2, a pile frame 3, a drill rod 4, a slurry discharge pipe 5, an air inlet pipe 6, a steel wire rope 7, an inner tap 8, an inner air inlet pipe 9, a slag suction pipe 10 and an exhaust pipe 11;
the drill rod 4 is a multi-layer telescopic drill rod, and the top end of the inner layer drill rod can extend downwards to the lower end of the adjacent outer layer drill rod under the action of gravity;
the outermost drill rod of the drill rod 4 is hung on the power head 2 on the pile frame 3; the power head 2 drives the drill rod at the outermost layer of the drill rod 4 to drive the cluster down-the-hole hammer 1 to rotate;
the steel wire rope 7 penetrates through the outer layer drill rod and is fixed on an inner tap 8 at the top of the central drill rod of the drill rod 4;
the air inlet pipe 6 penetrates through the outer layer of the drill rod 4, enters the inner faucet 8, is connected with the inner air inlet pipe 9, and enters the cluster down-the-hole hammer 1 to perform impact work;
a slag suction port in the cluster down-the-hole hammer 1 is communicated with a slag suction pipe 10, enters a central drill rod slurry discharge channel of a drill rod 4, passes through an inner tap 8, is connected with a slurry discharge pipe 5, and then reaches a ground slurry treatment system, so that the drilling slag is discharged in a gas lift reverse circulation mode, a pump suction reverse circulation mode or a pump pressure positive circulation mode;
the exhaust of the cluster down-the-hole hammer 1 passes through the exhaust pipe in the cluster down-the-hole hammer 1, enters the exhaust pipe in the central drill rod of the drill rod 4, and is connected to the exhaust pipe outside the drill rod through the inner tap 8.
Furthermore, each down-the-hole hammer on the cluster down-the-hole hammer 1 is provided with a closed outer sleeve, exhaust gas of the down-the-hole hammer is collected and exhausted into an exhaust channel and exhausted into the atmosphere through an exhaust pipe 11, no exhaust hole is formed in the bottom of the down-the-hole hammer, residual gas of the down-the-hole hammer cannot be exhausted into pile hole mud outside a drilling tool, and the pile hole is guaranteed against collapse caused by the fact that gas leaks into the mud to reduce specific gravity.
With reference to the accompanying drawings: the use method of the rotary drilling rig for driving the gas lift reverse circulation down-the-hole hammer drilling machine comprises the following steps,
the method comprises the following steps: assembling;
the steel wire rope 7 penetrates through the outer layer of the drill rod 4 to be connected with the inner tap 8;
the air inlet pipe 6 penetrates through the outer layer of the drill rod 4 to be connected with an air inlet joint of an inner tap 8, and the other end of the air inlet pipe 6 is communicated with an air compressor;
communicating the slag discharge pipe 5 with the inner tap 8 and a ground slurry treatment system, and connecting the exhaust pipe 11 with the inner tap 8;
step two: hoisting;
the wire rope 7 suspends the drill rod 4 and other drilling tools to the drilling station;
step three: drilling;
starting the power head 2 to drive the cluster down-the-hole hammer 1 to rotate;
starting an air compressor to enable the cluster down-the-hole hammer 1 to impact rock drilling, discharging residual air into an exhaust channel, entering an exhaust pipe 11, discharging the residual air into the atmosphere, injecting high-pressure air into a slag suction pipe 10 to form mud gas lift reverse circulation, discharging drilling slag from mud through a drill stem 4 slurry discharge channel, an inner tap 8 and a slurry discharge pipe 5, and realizing the full-section drilling of the foundation by the down-the-hole hammer; pump suction slag discharge or pump pressure positive circulation slag discharge can also be adopted;
the drill rod 4 is put in and put down while drilling until the drilling is finished;
the rotary drilling rig has the function of quickly switching the rotary drilling tool and the down-the-hole hammer drilling tool.
Furthermore, in the third step, each down-the-hole hammer on the cluster down-the-hole hammer 1 is provided with a closed outer sleeve, the collected down-the-hole hammer exhaust gas is discharged into a gas collecting chamber of the cluster down-the-hole hammer 1 and is discharged into an exhaust channel of the drill rod 4, the bottom of the down-the-hole hammer is not provided with an exhaust hole, and the gas cannot be discharged into pile hole mud outside the drilling tool.
Further, in the above technical scheme, in the third step, when the drilled hole is a water-wet hole, high-pressure air is injected into the slag suction pipe 10 to form slurry gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe 10, and high-pressure air is injected into the slag suction pipe 10 to form air reverse circulation slag removal;
when the drilling is shallow hole drilling, an air injection and suction device is arranged in the slag suction pipe 10, and high-pressure air is injected into the slag suction pipe 10 to form slurry reverse circulation slag removal.
Furthermore, in the third step, the size of a single down-the-hole hammer on the cluster down-the-hole hammer 1 is smaller, the down-the-hole hammers impact each other randomly, the vibration force can be counteracted mutually, the vibration force to the foundation is smaller, the vibration is ensured not to cause the collapse of the engineering drilling hole, the drilling construction in the stratum with the deep covering layer does not need the casing follow-up, and the simple mud wall protection is adopted.
Furthermore, in the third step, the drilling pressure and the torque required by the cluster down-the-hole hammer 1 are smaller, and a graded reaming cluster down-the-hole hammer drill bit or an annular cluster down-the-hole hammer drill bit can be adopted for core drilling, the ultra-large diameter rock-entering drill hole with the diameter of 5 meters is constructed, and the model of the matched rotary drilling rig is much smaller than that of the drilling rig required by rock-entering construction with a rotary drilling rig.
Further, in step three, the drill rod 4 may not be pressurized, there is no length limitation, and the drilling depth of the drilling machine may be very deep.
In order to more clearly illustrate the advantages of the rotary drilling rig driven gas-lift reverse circulation down-the-hole hammer drilling machine and the using method thereof in the invention compared with the prior art in the construction of a drill hole with a diameter of 5 meters, workers compare the three technical schemes, and the comparison results are as follows:
as can be seen from the above table, when the gas-lift reverse circulation down-the-hole hammer drill driven by the rotary drilling rig and the using method thereof are used for drilling a large-diameter deep covering layer, compared with the prior art, the gas-lift reverse circulation down-the-hole hammer drill driven by the rotary drilling rig is light in equipment, low in manufacturing cost, high in rock drilling speed and low in construction cost.
Other parts not described belong to the prior art.
Claims (4)
1. The utility model provides a dig soon and bore drive gas lift reverse circulation down-the-hole hammer rig which characterized in that: the device comprises a cluster down-the-hole hammer (1), a power head (2), a pile frame (3), a drill rod (4), a slurry discharge pipe (5), an air inlet pipe (6), a steel wire rope (7), an inner tap (8), an inner air inlet pipe (9), a slag suction pipe (10) and an exhaust pipe (11);
the drill rod (4) is a multi-layer telescopic drill rod, the inner layer drill rod can extend downwards under the action of gravity, and the top end of the inner layer drill rod reaches the lower end of the adjacent outer layer drill rod;
the outermost drill rod of the drill rod (4) is suspended on the power head (2) on the pile frame (3); the power head (2) drives the drill rod at the outermost layer of the drill rod (4) to drive the cluster down-the-hole hammer (1) to rotate;
the steel wire rope (7) penetrates through the outer layer drill rod and is fixed on an inner tap (8) at the top of the central drill rod of the drill rod (4);
the air inlet pipe (6) penetrates through the outer layer drill rod, enters the inner tap (8), is connected with the inner air inlet pipe (9) and enters the down-the-hole hammer of the cluster down-the-hole hammer (1);
a slag suction port in the cluster down-the-hole hammer (1) is connected with a slag suction pipe (10), enters a central drill rod of a drill rod (4), is connected with a slurry discharge pipe (5) through an inner tap (8), and then enters a ground slurry treatment system;
the exhaust of the cluster down-the-hole hammer (1) passes through an exhaust pipe in the cluster down-the-hole hammer (1), enters an exhaust pipe in a central drill rod of the drill rod (4), and is connected to an exhaust pipe outside the drill rod through an inner tap (8).
2. The rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drill according to claim 1, characterized in that: each single down-the-hole hammer on the cluster down-the-hole hammer (1) is provided with a closed outer sleeve, all exhaust of the collected down-the-hole hammer is discharged into an exhaust channel and is discharged into the atmosphere through an exhaust pipe (11), and no exhaust hole is formed in the bottom of the down-the-hole hammer; the slag suction port on the cluster down-the-hole hammer (1) is connected with the slag suction pipe (10).
3. The use method of the rotary drilling rig driving gas lift reverse circulation down-the-hole hammer drill according to any one of claims 1-2, characterized by comprising the following steps: comprises the following steps of (a) carrying out,
the method comprises the following steps: assembling;
connecting the steel wire rope (7) with an inner tap (8);
the air inlet pipe (6) penetrates through the outer layer drill rod to be connected with an air inlet joint on the inner faucet (8), and the other end of the air inlet pipe (6) is communicated with an air compressor;
the slurry discharge pipe (5) is communicated with the inner tap (8) and the ground slurry treatment system, and the exhaust pipe (11) is connected with the inner tap (8);
a cluster down-the-hole hammer (1) is arranged on the drill rod (4);
step two: hoisting;
a steel wire rope (7) suspends the drill rod and other drilling tools to a drilling station;
step three: drilling;
starting the power head (2) to drive the cluster down-the-hole hammer (1) to rotate;
starting an air compressor to supply air, enabling the cluster down-the-hole hammer (1) to impact rock drilling, injecting high-pressure air into a slag suction pipe (10) to form mud gas lift reverse circulation, and discharging drilling slag through a drill rod (4) and a slurry discharge pipe (5); pumping reverse circulation or pumping positive circulation is adopted for deslagging, so that the down-the-hole hammer drills the whole section of the foundation;
the drill rod (4) is put in and put down while drilling until the drilling is finished;
the rotary drilling rig has the function of quickly switching the rotary drilling tool and the down-the-hole hammer drilling tool.
4. The use method of the rotary drilling rig driven gas lift reverse circulation down-the-hole hammer drilling machine according to claim 3, characterized by comprising the following steps: in the third step, when the hole is drilled to be a water-wet hole, high-pressure air is injected into the slag suction pipe (10) to form mud gas lift reverse circulation slag discharge;
when the drilled hole is a dry hole without water, an air injection and suction device is arranged in the slag suction pipe (10), and high-pressure air is injected to form air reverse circulation slag removal.
When the drilling is shallow hole drilling, an air injection and suction device is arranged in the slag suction pipe (10), and high-pressure air is injected to form slurry reverse circulation slag removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116941.1A CN112727352A (en) | 2021-01-28 | 2021-01-28 | Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116941.1A CN112727352A (en) | 2021-01-28 | 2021-01-28 | Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112727352A true CN112727352A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110116941.1A Withdrawn CN112727352A (en) | 2021-01-28 | 2021-01-28 | Gas-lift reverse circulation down-the-hole hammer drill driven by rotary drilling rig and use method thereof |
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| Country | Link |
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| CN (1) | CN112727352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340655A (en) * | 2021-07-09 | 2021-09-03 | 中电建路桥集团有限公司 | Exploration hole sampling device and control method |
| CN113738294A (en) * | 2021-09-30 | 2021-12-03 | 浙江易通特种基础工程股份有限公司 | Pore-forming device of full hydraulic drilling machine and construction method thereof |
| CN117248817A (en) * | 2023-11-17 | 2023-12-19 | 亚核智造(江苏)科技有限公司 | Positive-circulation rotary drilling rig and construction method thereof |
-
2021
- 2021-01-28 CN CN202110116941.1A patent/CN112727352A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340655A (en) * | 2021-07-09 | 2021-09-03 | 中电建路桥集团有限公司 | Exploration hole sampling device and control method |
| CN113738294A (en) * | 2021-09-30 | 2021-12-03 | 浙江易通特种基础工程股份有限公司 | Pore-forming device of full hydraulic drilling machine and construction method thereof |
| CN113738294B (en) * | 2021-09-30 | 2024-05-28 | 浙江易通特种基础工程股份有限公司 | Pore-forming device of full-hydraulic drilling machine and construction method thereof |
| CN117248817A (en) * | 2023-11-17 | 2023-12-19 | 亚核智造(江苏)科技有限公司 | Positive-circulation rotary drilling rig and construction method thereof |
| CN117248817B (en) * | 2023-11-17 | 2024-03-26 | 亚核智造(江苏)科技有限公司 | Positive-circulation rotary drilling rig and construction method thereof |
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