CN111101854A - Small-size safe drilling equipment in oil field - Google Patents
Small-size safe drilling equipment in oil field Download PDFInfo
- Publication number
- CN111101854A CN111101854A CN202010005539.1A CN202010005539A CN111101854A CN 111101854 A CN111101854 A CN 111101854A CN 202010005539 A CN202010005539 A CN 202010005539A CN 111101854 A CN111101854 A CN 111101854A
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- Prior art keywords
- water
- drill bit
- rotating motor
- oil field
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000005086 pumping Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000011435 rock Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 25
- 239000003921 oil Substances 0.000 description 17
- 239000003651 drinking water Substances 0.000 description 10
- 235000020188 drinking water Nutrition 0.000 description 10
- 239000003208 petroleum Substances 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000004804 winding 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- 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
- E21B12/00—Accessories for drilling tools
-
- 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
-
- 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
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
Landscapes
- 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 small-sized safe well drilling device for an oil field, which belongs to the field of oil field exploitation and comprises a support rotating motor and a drill bit, wherein a top plate is arranged on the support, the lower surface of the top plate is connected with one end of a lifting rod, the other end of the lifting rod is fixedly provided with the rotating motor, the drill bit is installed on an output shaft of the rotating motor, a water tank is arranged on the upper surface of the top plate, a water pumping pipe is arranged on the water tank, water through holes are formed in the output shaft of the rotating motor and the central shaft of the drill bit, the water pumping pipe is connected with the water through holes, a connecting piece is arranged at the bottom end of the support. The invention can drill the ground rock stratum, is convenient for the exploitation of the subsequent oil field, timely reduces the working temperature of the drill bit, timely brings out the broken rocks and the like in the drilling well along the water flow, intercepts the broken stones and the like generated in the drilling well, avoids splashing to smash workers, ensures the safety of the surrounding environment in the working process and is convenient to use.
Description
Technical Field
The invention relates to the field of oilfield exploitation, in particular to a small-sized safe drilling device for an oilfield.
Background
Petroleum is one of the main objects of geological exploration, is a viscous, dark brown liquid, and has petroleum storage in the upper part of the earth crust. The main component is a mixture of various alkanes, cycloalkanes and aromatics. Petroleum is blood developed in modern industry, is the most important raw material in modern industrial society, is not only a non-renewable commodity, but also an indispensable strategic resource for national survival and development, and has immeasurable effect on guaranteeing national economy and social development and national defense safety. Most vehicles use oil for propulsion, and in addition oil is used to generate electricity, which is also an important raw material for the chemical industry. It is also called "black gold". Gasoline, diesel oil, kerosene and heavy oil extracted from petroleum are applied to the operation of mechanical tools; the refined coal gas is used as household and industrial fuel; the extracted asphalt is used for building a highway; the extracted chemical products can be used for producing plastic cement, clothes and the like; the petroleum can produce agricultural fertilizer.
The oil field exploitation utilizes oil drilling equipment to drill through a plurality of sets of stratums from the ground along a designed track to reach a preset target layer to form a stable channel for extracting or injecting required fluid from oil gas, and completes the operations of coring, logging and testing during the drilling process and after the drilling is finished, thereby obtaining various information required by exploration, development and drilling. The drill bit can rotate and bring out a large amount of broken stones and the like during the existing drilling work, and the broken stones are easy to splash out and injure workers, thereby affecting the safety of the working environment.
Disclosure of Invention
In view of the above-mentioned problems, it is an object of the present invention to provide a small-sized safety drilling device for oil field, which solves the above-mentioned problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a small-size safe drilling equipment in oil field, including support rotating electrical machines and drill bit, the support on be equipped with the roof, roof lower surface and lifter one end are connected, the fixed rotating electrical machines that is equipped with in lifter other end, install the drill bit on the rotating electrical machines output shaft, the roof upper surface is equipped with the water tank, be equipped with the drinking-water pipe on the water tank, the output shaft of rotating electrical machines and the center pin position of drill bit all are equipped with the limbers, drinking-water pipe and limbers are connected, the support bottom is equipped with the connecting piece, be equipped with flexible post on the connecting piece, flexible post bottom is equipped with the stationary dog.
As a further scheme of the invention: the support side wall is obliquely provided with an auxiliary supporting rod, one end of the pull rod is connected with the auxiliary supporting rod, and one end of the pull rod is connected with the support.
As a further scheme of the invention: the support is provided with a camera which is in wireless connection with the remote control display center.
As a further scheme of the invention: a dust collector is arranged on the protection circular plate, a dust collection pipe is arranged on the dust collector, and a dust collection opening is formed in the outlet end of the dust collection pipe.
As a further scheme of the invention: the outer wall of the drill bit is spirally provided with a friction edge.
As a further scheme of the invention: a liquid level sensor is arranged at the bottom end inside the water tank, and a water inlet pipe is arranged on the water tank.
As a further scheme of the invention: the top plate is provided with a supporting rod, the supporting rod is movably provided with a rotating cylinder, and the water pumping pipe is wound on the rotating cylinder.
As a further scheme of the invention: and a water pump is arranged on the water pumping pipe.
Compared with the prior art, the invention has the beneficial effects that: the invention drives the rotary motor to move up and down through the lifting rod, the drill bit drills a well on the ground rock stratum under the driving of the rotation of the rotary motor, the exploitation of the subsequent oil field is convenient, the water in the water tank is pumped out through the water pumping pipe and the water pump, the water in the water tank is sprayed out from the bottom end of the drill bit through the water pumping pipe and the water through hole, the temperature of the work of the drill bit is convenient to be reduced in time, the safety of the work of elements is avoided being influenced by the too high temperature, the service life of the elements is prolonged, meanwhile, the broken rocks during the well drilling and the like are taken out along the water flow in time, the well drilling work is convenient, the telescopic column is adjusted to lead the fixed claw to tightly grasp the ground when reaching the work place, the stability of the device is ensured, the safety of the use of the device is improved, the exploitation of the petroleum is convenient, adjust horizontal telescopic link and make the protection plectane control around the support during operation, the rubble that the drilling produced under the protection plectane interception, avoid it to splash away and injure the workman by a crashing object, guarantee the security of during operation surrounding environment, the operating condition with the drilling that can understand through the camera shows at remote control display center, make things convenient for people to watch, do benefit to going on of drilling work, the dust catcher is opened in the during operation, the dust that produces the drilling through dust absorption pipe and dust absorption mouth is siphoned away, avoid its polluted atmosphere environment, guarantee the safety of workman's respiratory track simultaneously, send signal when liquid level sensor measures the interior water level of water tank and crosses low, make things convenient for people in time to supply water, do benefit to the normal clear of drilling exploitation, and convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a small safety drilling device in an oil field.
Fig. 2 is a schematic structural diagram of a drill bit in a small safety drilling device for an oil field.
Fig. 3 is a schematic structural diagram of a protective circular plate in a small safety drilling device in an oil field.
In the figure: 1. the device comprises a support, 2, a top plate, 3, a lifting rod, 4, a rotating motor, 5, a drill bit, 6, a water tank, 7, a water pumping pipe, 8, a water pump, 9, a rotating cylinder, 10, a supporting rod, 11, a telescopic column, 12, a fixed claw, 13, a connecting piece, 14, an auxiliary supporting rod, 15, a pull rod, 16, a horizontal telescopic rod, 17, a protective circular plate, 18, a friction edge, 19, a water through hole, 20, a camera, 21, a liquid level sensor, 22, a dust collector, 23, a dust collection pipe, 24 and a dust collection opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows: referring to fig. 1-3, a small-size safe drilling device for an oil field comprises a support 1, a rotating motor 4 and a drill bit 5, wherein a top plate 2 is arranged on the support 1, the lower surface of the top plate 2 is connected with one end of a lifting rod 3, the rotating motor 4 is fixedly arranged at the other end of the lifting rod 3, the drill bit 5 is installed on an output shaft of the rotating motor 4, the lifting rod 3 drives the rotating motor 4 to move up and down, and the drill bit 5 is driven by the rotating motor 4 to drill a ground rock stratum, so that the subsequent oil field can be conveniently mined and used.
2 upper surfaces of roof are equipped with water tank 6, be equipped with drinking-water pipe 7 on the water tank 6, the output shaft of rotating electrical machines 4 and the center pin position of drill bit 5 all are equipped with limbers 19, drinking-water pipe 7 and limbers 19 are connected, install water pump 8 on the drinking-water pipe 7, take out the water in the water tank 6 through drinking-water pipe 7 and water pump 8, water in the water tank 6 is spout from 5 bottoms of drill bit through drinking-water pipe 7 and limbers 19, the temperature of drill bit 5 work is conveniently in time reduced, avoid the too high security that influences the component work of temperature, the life of improvement component, in time take out along the rivers with the broken rock of well drilling etc. simultaneously, the going on of well drilling work is made things convenient for.
The bottom end of the support 1 is provided with a connecting piece 13, the connecting piece 13 is provided with a telescopic column 11, the bottom end of the telescopic column 11 is provided with a fixed claw 12, the telescopic column 11 is adjusted to enable the fixed claw 12 to tightly grasp the ground when the device is in a working place, the stability of the device is ensured, the use safety of the device is improved, the petroleum drilling exploitation is facilitated, and the use is facilitated.
The side wall of the support 1 is obliquely provided with the auxiliary supporting rod 14, one end of the pull rod 15 is connected with the support 1, the device is increased through the auxiliary supporting rod 14, the pull rod 15 guarantees the supporting safety of the auxiliary supporting rod 14, the service life of the device is prolonged, and the safe proceeding of oil exploitation is guaranteed, so that the use is facilitated.
The side wall of the support 1 is provided with a horizontal telescopic rod 16, the horizontal telescopic rod 16 is provided with a protection circular plate 17, the horizontal telescopic rod 16 is adjusted during working to control the protection circular plate 17 around the support 1, the protection circular plate 17 intercepts gravels and the like generated by drilling, the phenomena that the gravels and the like are splashed out and injure workers are smashed are avoided, the safety of the surrounding environment during working is ensured, and the use is convenient.
Install camera 20 on support 1, camera 20 and remote control display center wireless connection, the operating condition with the well drilling that can understand through camera 20 shows at remote control display center, makes things convenient for people to watch, does benefit to going on of well drilling work, facilitates the use.
The protective circular plate 17 is provided with a dust collector 22, the dust collector 22 is provided with a dust collection pipe 23, the outlet end of the dust collection pipe 23 is provided with a dust collection port 24, the dust collector 22 is opened during working, dust generated by drilling is sucked away through the dust collection pipe 23 and the dust collection port 24, the atmospheric environment is prevented from being polluted, and meanwhile, the safety of the respiratory tract of a worker is ensured, and the protective circular plate is convenient to use.
Example two: on the basis of the first embodiment, the outer wall of the drill bit 5 is spirally provided with the friction ribs 18, the friction ribs 18 increase friction force, the drilling effect and efficiency are improved, and the use is convenient.
The inside bottom of water tank 6 is equipped with level sensor 21, is equipped with the inlet tube on the water tank 6, measures the water level when low excessively in the water tank 6 as level sensor 21, makes things convenient for people in time to supply water, does benefit to the normal clear of drilling exploitation, facilitates the use.
Be equipped with bracing piece 10 on roof 2, the activity is equipped with rotatory section of thick bamboo 9 on the bracing piece 10, and drinking-water pipe 7 winding sets up on rotatory section of thick bamboo 9, and rotatory section of thick bamboo 9 center pin and motor output shaft are connected, and the during operation drives rotatory section of thick bamboo 9 through rotating through the motor and grabs and do, drives the rolling of drinking-water pipe 7 on the rotatory section of thick bamboo 9 and stretch and put, makes things convenient for the normal clear of well drilling work, does benefit to the use.
The working principle of the invention is as follows: the invention drives the rotating motor 4 to move up and down through the lifting rod 3, the drill bit 5 drills a well on the ground rock stratum under the driving of the rotating motor 4, the exploitation of the subsequent oil field is convenient, the water in the water tank 6 is pumped out through the water pumping pipe 7 and the water pump 8, the water in the water tank 6 is sprayed out from the bottom end of the drill bit 5 through the water pumping pipe 7 and the water through hole 19, the working temperature of the drill bit 5 is conveniently and timely reduced, the safety of the element working is prevented from being influenced by too high temperature, the service life of the element is prolonged, meanwhile, the broken rocks of the well drilling and the like are taken out along with the water flow, the well drilling work is convenient, the telescopic column 11 is adjusted to ensure the fixed claw 12 to tightly grasp the ground when reaching the working place, the stability of the device is ensured, the safety of the device is improved, the exploitation of the petroleum well drilling is convenient, the utility model provides high unit life, guarantee that oil development's safety goes on, the during operation is adjusted horizontal telescopic link 16 and is made protection plectane 17 control around support 1, the rubble that well drilling produced under the protection plectane 17 interception, avoid it to splash away and injure the workman by a crashing object, guarantee the security of during operation surrounding environment, can be clear through camera 20 show the operating condition with the well drilling at remote control display center, make things convenient for people to watch, do benefit to going on of well drilling work, dust catcher 22 is opened in the during operation, the dust that produces the well drilling is siphoned away through dust absorption pipe 23 and dust absorption mouth 24, avoid its polluted atmosphere environment, guarantee the safety of workman's respiratory track simultaneously, and is convenient to use. When the liquid level sensor 21 measures that the water level in the water tank 6 is too low, a signal is sent out, so that people can conveniently supplement water in time, normal drilling and exploitation can be facilitated, and the use is convenient. The during operation drives rotatory section of thick bamboo 9 through the motor rotation and catches, drives the rolling of drinking-water pipe 7 on the rotatory section of thick bamboo 9 and stretches and put, makes things convenient for the normal clear of well drilling work, does benefit to the use.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The small-sized safe drilling device for the oil field comprises a support (1), a rotating motor (4) and a drill bit (5), and is characterized in that a top plate (2) is arranged on the support (1), the lower surface of the top plate (2) is connected with one end of a lifting rod (3), the rotating motor (4) is fixedly arranged at the other end of the lifting rod (3), the drill bit (5) is installed on an output shaft of the rotating motor (4), a water tank (6) is arranged on the upper surface of the top plate (2), a water pumping pipe (7) is arranged on the water tank (6), water through holes (19) are formed in the output shaft of the rotating motor (4) and the central shaft of the drill bit (5), the water pumping pipe (7) is connected with the water through holes (19), a connecting piece (13) is arranged at the bottom end of the support (1), a telescopic column (11) is arranged on the connecting piece (13), a fixing, a protective circular plate (17) is arranged on the horizontal telescopic rod (16).
2. The small safety drilling device for oil fields according to claim 1, characterized in that the side wall of the bracket (1) is obliquely provided with an auxiliary support rod (14), one end of the pull rod (15) is connected with the auxiliary support rod (14), and one end of the pull rod (15) is connected with the bracket (1).
3. The small safety drilling device for oil fields according to claim 1, characterized in that a camera (20) is installed on the bracket (1), and the camera (20) is wirelessly connected with a remote control display center.
4. The small safety drilling device for oil fields as claimed in claim 3, characterized in that the outer wall of the drill bit (5) is spirally provided with friction ridges (18).
5. The small safety drilling device for oil field according to any of claims 1-4, characterized in that the bottom of the inside of the water tank (6) is provided with a liquid level sensor (21), and the water tank (6) is provided with a water inlet pipe.
6. The small-sized safe drilling device for the oil field according to claim 5, wherein the top plate (2) is provided with a support rod (10), the support rod (10) is movably provided with a rotary cylinder (9), and the water pumping pipe (7) is wound on the rotary cylinder (9).
7. The small safety drilling device in oil fields according to claim 6, characterized in that a water pump (8) is installed on the water pumping pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005539.1A CN111101854A (en) | 2020-01-03 | 2020-01-03 | Small-size safe drilling equipment in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005539.1A CN111101854A (en) | 2020-01-03 | 2020-01-03 | Small-size safe drilling equipment in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111101854A true CN111101854A (en) | 2020-05-05 |
Family
ID=70426699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010005539.1A Withdrawn CN111101854A (en) | 2020-01-03 | 2020-01-03 | Small-size safe drilling equipment in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111101854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539068A (en) * | 2020-12-01 | 2021-03-23 | 同济大学 | Rock-breaking shield machine system with temperature difference as auxiliary measure and operation method |
-
2020
- 2020-01-03 CN CN202010005539.1A patent/CN111101854A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539068A (en) * | 2020-12-01 | 2021-03-23 | 同济大学 | Rock-breaking shield machine system with temperature difference as auxiliary measure and operation method |
| CN112539068B (en) * | 2020-12-01 | 2022-06-07 | 同济大学 | Rock-breaking shield machine system with temperature difference as auxiliary measure and operation method |
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| PB01 | Publication | ||
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Application publication date: 20200505 |