CN207813526U - Soft rock stratum reacting cycle casing drilling tool - Google Patents
Soft rock stratum reacting cycle casing drilling tool Download PDFInfo
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- CN207813526U CN207813526U CN201820144094.3U CN201820144094U CN207813526U CN 207813526 U CN207813526 U CN 207813526U CN 201820144094 U CN201820144094 U CN 201820144094U CN 207813526 U CN207813526 U CN 207813526U
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Abstract
Soft rock stratum reacting cycle casing drilling tool, drilling tool is coaxial triple channel structure, including double-wall drill pipe, auger stem, drill bit, casing and shoe, the centre bore of double-wall drill pipe inner tube and the centre bore of auger stem inner tube constitute slagging channel, annular gap between auger stem inner tube and auger stem outer tube constitutes inlet channel, and the annular gap between auger stem outer tube and casing constitutes outer ring channel；Compressed air shunts after inlet channel enters drill bit, for assisted machining sword broken formation and realizes reacting cycle deslagging.And the drilling cuttings for being suspended in outer ring channel enters through deslagging window along helical blade uplink and returns to earth's surface on slagging channel.Drilling tool provided by the utility model assists deslagging in drilling process using fluid media (medium) reacting cycle deslagging and helical blade; realize pipe-following drilling to protect hole wall; the problems such as burying encountered in Soft rock layer drilling process, deslagging are difficult and pore-forming is difficult can be solved, realizes drilling, anti-collapse, dedusting, retaining wall institutional operation.
Description
Technical field
The utility model is related to a kind of reacting cycle casing drilling tools for Soft rock layer, especially reacting cycle deslagging, spiral shell
Drilling tool of the rotary drill into row's powder and concentric casing drilling synchronization job.
Background technology
In the Soft rocks layer drilling such as loose, cementing properties is poor, broken, easy aquation, difficulty of construction is big, is commonly encountered coring
The problems such as difficult, pore-forming hardly possible, hole wall collapse, drilling effect is undesirable, and main cause is that drilling is easy when boring in the construction process
It collapses, bed drain purge is big, it is also possible to the accidents such as bit freezing, stick of tool and burying occur, cause drilling efficiency relatively low.Therefore, it is necessary to a kind of brills
Into technology, collapse hole after pore-forming can be solved the problems, such as in drilling process, additionally it is possible to improve drilling efficiency, while drilling cuttings can also be improved
Acquisition rate simultaneously reduces aperture dust pollution.
Chinese patent literature CN201310566830.6 discloses a kind of for deslagging in soft projecting coal bed drilling bilayer
The anti-blocking drilling rod of deslagging, central backflow drill bit, rotatory sealing water supply installation etc. in anti-blocking drilling tool and application method, including bilayer, rotation
Turning sealing water supply installation to connect with the anti-blocking drilling rod of deslagging in the bilayer on drilling machine, central backflow drill bit is mounted on the front end of drilling rod,
Its drilling rod is by outer drilling rod body, inner connection tube and is welded on the antipriming pipe of inner connection tube inner wall and forms, but the drilling rod body is complicated,
Difficulty of processing is big, and intensity is low.
Chinese patent literature CN104514487 discloses the soft projecting coal bed reverse circulation drilling equipment of one kind and its drilling work
Skill, including drilling machine, active double-wall drill pipe, Double-way water tap, drill bit and air compressor machine.It, need to be as drill bit constantly pierces stratum
Continuous adjunction double-wall drill pipe between active double-wall drill pipe and drill bit.The drilling tool can effectively prevent the generation caved in hole, can be broken
Broken stratum drilling, but it is poor in shallow bore hole section reacting cycle effect, and still it is easy to happen collapse hole after carrying brill.
Chinese patent literature CN105781419 discloses a kind of for broken ground drilling center deslagging injection type suction brill
It includes air inlet pipe, scum pipe, power head and drilling rod to have and use method, drilling tool, and slagging channel and inlet channel are equipped in drilling rod,
And injection type is installed in drilling rod front end and aspirates drill bit.The jet air that spray-hole sprays generates agitaion to foot of hole,
And bottom hole drilling cuttings is pushed to enter center slagging channel, drilling efficiency and drilling depth can be increased substantially.But drill bit and drilling rod
Annular gap is larger, and reacting cycle forms unstable, and collapse hole is easy after still can not solving the problems, such as to carry brill.
Therefore, there is an urgent need for a kind of new technical solutions to solve the above problems in the prior art.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of Soft rock stratum reacting cycle and bored with pipe
The cutting edge of tool, specific drill bit is crushed Rock And Soil, and utilizes gas jet addi-tional crusher stratum.It is formed by drill bit perforation
Jet stream forms negative pressure in center slagging channel, realizes the transport of drilling cuttings reacting cycle；It is suspended in drilling tool and the brill in casing annular gap
Bits then enter center slagging channel as the rotation of drilling rod is along helical blade uplink, and through deslagging window, it is final on return to earth's surface.
In drilling process, drill bit drives casing to turn round downlink by shoe, realizes the setting of casing retaining wall in reverse circulation drilling, can effectively solve
Certainly the undergauge of Soft rock layer, cave in, the drilling accidents such as hole wall unstability, keep dedusting more effective using reacting cycle deslagging, realize
Drilling, anti-collapse, dedusting, retaining wall institutional operation.
In order to achieve the above objectives, the utility model uses following technical scheme：Soft rock stratum reacting cycle casing drilling tool,
It is characterized in that：Including scum pipe, power head, air inlet pipe, double-wall drill pipe, casing, auger stem, drill bit, shoe, nozzle, cut
Cut sword and perforation, the double-wall drill pipe top is provided with power head, double-wall drill pipe by power head respectively with scum pipe, air inlet
Pipe is connected to；The auger stem upper end is connect by auger stem top connection with double-wall drill pipe, and auger stem lower end passes through spiral
Drilling rod lower contact is connect with drill bit thread, and wherein double-wall drill pipe is made of double-wall drill pipe outer tube and double-wall drill pipe inner tube, and double-walled bores
Annular gap is constituted between bar outer tube and double-wall drill pipe inner tube, deslagging window is offered on auger stem side wall, and auger stem is double
Layer structure, auger stem include coaxially arranged auger stem inner tube and auger stem outer tube, auger stem inner tube and auger
Bar outer tube forms annular gap, and the length of auger stem inner tube is more than the length of auger stem outer tube, auger stem outer tube wall
Outside weldings have helical blade；Described sleeve pipe and shoe forming sleeves assembly, the set pipe assembly are set in double-wall drill pipe, auger
Bar top connection, auger stem, auger stem lower contact and bit exterior；
Reacting cycle casing drilling tool is coaxial triple channel structure, in the centre bore and auger stem inner tube of double-wall drill pipe inner tube
Heart hole constitutes slagging channel, and the annular gap between auger stem inner tube and auger stem outer tube constitutes inlet channel, auger
Annular gap between bar outer tube and casing constitutes outer ring channel；
The drill bit has the double-walled construction being made of inner and outer wall, and the interlayer space between inner and outer wall is formed
Annular groove shape inlet plenum is provided with spline on drill bit, and drill bit is against by spline on the step surface of shoe, is inlayed at bit operation end
There is cutting edge, and is provided with the mouth of a river；
On drill bit, nozzle is radially arranged along drill bit for the nozzle and perforation interlaced arrangement；Perforation is inclined to set,
The center line of perforation and the axis of drill bit are in 30 ° of angles.
Auger stem top connection upper end is connect with double-wall drill pipe external pipe thread, auger stem top connection lower end and spiral
Drilling rod external pipe thread connects；The auger stem upper end of inner tube is connect with double-wall drill pipe inner tube using inserting mode, auger stem
Inner tube lower end is connect with drill bit using inserting mode；Auger stem lower contact upper end is connect with auger stem external pipe thread,
Auger stem lower contact lower end is connect with drill bit thread；Described sleeve pipe is used with shoe and is threadedly coupled, and passes through spline and drill bit
Grafting.
The nozzle quantity is three, and three nozzles are distributed on drill bit；The injection hole number is three, three perforations
It is distributed on drill bit, perforation and nozzle interlaced arrangement.
The length of the auger stem is less than or equal to 3m.
By above-mentioned design scheme, the utility model can bring following advantageous effect：
1, implement detritus drilling, while profit in Soft rock layer in the way of cutting edge revolution, air jet assisted machining
The problems such as being applied compression with drill bit to casing, realized the retaining wall in drilling, effectively prevent hole wall collapse；
2, compressed air is injected in slagging channel by perforation and forms negative pressuren zone obliquely, is produced to foot of hole drilling cuttings
Raw swabbing action forms reacting cycle deslagging, and then improves drilling cuttings migration efficiency；
3, drilling rod is suspended in the drilling cuttings in casing annular gap then as the rotation of drilling rod is along helical blade uplink, and
Enter center slagging channel by deslagging window, and in a manner of reacting cycle on return to earth's surface；
4, drilling tool uses coaxial-type connection type, and bonding strength is high, and unloading is convenient, fast, good airproof performance；
5, it realizes reacting cycle pipe-following drilling in Soft rock layer, can effectively solve the undergauge of Soft rock layer, cave in, hole wall
The drilling accidents such as unstability keep dedusting more effective using reacting cycle deslagging, realize that drilling, anti-collapse, dedusting, retaining wall are integrally turned into
Industry.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The utility model illustrative embodiments and their description do not constitute the improper limit of the utility model for understanding the utility model
It is fixed, in the accompanying drawings：
Fig. 1 is the structure chart of the utility model Soft rock layer reacting cycle casing drilling tool.
Fig. 2 is the A-A cross-section diagrams in Fig. 1.
Fig. 3 is the utility model drill bit tomograph.
Fig. 4 is the utility model auger stem tomograph.
Fig. 5 is the utility model Soft rock layer reverse circulation drilling process schematic diagram.
It is respectively marked in figure as follows：1- scum pipes, 2- power heads, 3- air inlet pipe, 4- double-wall drill pipes, 5- double-wall drill pipes outer tube,
6- double-wall drill pipes inner tube, 7- casings, the top connection of 8- auger stems, 9- auger stems inner tube, 10- deslagginves window, outside 11- auger stems
Pipe, 12- auger stems, the lower contact of 13- auger stems, 14- drill bits, 15- shoes, 16- nozzles, 17- cutting edges, 18- perforations,
19- inlet plenums, 20- slagging channels, 21- inlet channels, 22- outer ring channels.
Specific implementation mode
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.It should be understood by those skilled in the art that.Specifically described content is illustrative and be not restrictive below, no
The scope of protection of the utility model should be limited with this.
As shown in Figure 1, Soft rock stratum reacting cycle casing drilling tool is coaxial triple channel structure, including double-wall drill pipe 4, spiral shell
Rotary drill bar 12, drill bit 14, casing 7 and shoe 15, double-wall drill pipe 4 is made of double-wall drill pipe outer tube 5 and double-wall drill pipe inner tube 6, double
Annular gap is constituted between wall drilling rod outer tube 5 and double-wall drill pipe inner tube 6, auger stem 12 is double-layer structure, and auger stem 12 wraps
Coaxially arranged auger stem inner tube 9 and auger stem outer tube 11 are included, auger stem inner tube 9 and auger stem outer tube 11 form ring
Shape gap, the length of auger stem inner tube 9 are more than the length of auger stem outer tube 11,11 side wall outside weldings of auger stem outer tube
There is helical blade；The centre bore of double-wall drill pipe inner tube 6 and the centre bore of auger stem inner tube 9 constitute slagging channel 20, auger
Annular gap between bar inner tube 9 and auger stem outer tube 11 constitutes inlet channel 21, between auger stem outer tube 11 and casing 7
Annular gap constitute outer ring channel 22；Described sleeve pipe 7 and 15 forming sleeves assembly of shoe, casing 7 and shoe 15 play support
Hole wall effect, the set pipe assembly is protected to be set under double-wall drill pipe 4, auger stem top connection 8, auger stem 12, auger stem
Outside connector 13 and drill bit 14；
4 top of the double-wall drill pipe is provided with power head 2, double-wall drill pipe 4 by power head 2 respectively with scum pipe 1, air inlet
Pipe 3 is connected to；12 upper end of the auger stem is connect by auger stem top connection 8 with double-wall drill pipe 4, and 12 lower end of auger stem is logical
It crosses auger stem lower contact 13 to be threadedly coupled with drill bit 14, specific 8 upper end of auger stem top connection and 5 screw thread of double-wall drill pipe outer tube
Connection, 8 lower end of auger stem top connection is threadedly coupled with auger stem outer tube 11；9 upper end of auger stem inner tube and double-wall drill pipe
Inner tube 6 is connected using inserting mode, and 9 lower end of auger stem inner tube is connect with drill bit 14 using inserting mode, and bonding strength is high, close
It is good to seal effect, unloading is convenient；13 upper end of auger stem lower contact is threadedly coupled with auger stem outer tube 11, auger stem lower contact
13 lower ends are threadedly coupled with drill bit 14；Casing 7 is used with shoe 15 and is threadedly coupled, and passes through spline and 14 grafting of drill bit；
As shown in Fig. 2, drill bit 14 applies rotary torque and axial direction by spline and step towards shoe 15 in drilling process
Pressure protects hole wall using casing 7, and then realizes concentric casing drilling.
As shown in figure 3, the drill bit 14 is reacting cycle structure, there is the double-walled construction being made of inner and outer wall, and
Interlayer space between inner and outer wall forms annular groove shape inlet plenum 19, is machined with spline on drill bit 14, drill bit 14 passes through spiral
Drilling rod lower contact 13 is connect with auger stem outer tube 11, while being connect using inserting mode with auger stem inner tube 9, the drill bit
There are three uniformly distributed for 14 designs obliquely in the perforation 18 at 30 ° of angles, i.e. the center line of perforation 18 and the axis of drill bit 14 is in
30 ° of angles, three uniformly distributed radial nozzles 16, perforation 18 and nozzle 16 answer interlaced arrangement；It is inlaid in 14 working end of drill bit
Cutting edge 17, and retain the mouth of a river.In drilling process, cutting Soft rock layer is turned round using cutting edge 17, is formed through nozzle 16
The Soft rock layer of 15 lower section of air jet assisted machining shoe, and drive the downlink together of casing 7.Compressed air passes through perforation
18 form high-speed jet, and form stable negative pressuren zone in slagging channel 20 and generate swabbing action to the drilling cuttings of foot of hole,
Make the drilling cuttings of foot of hole enter slagging channel 20 and on return, return to earth's surface.
As shown in figure 4, the auger stem 12 is coaxial two-channel structure, spiral shell is designed on auger stem outer tube 11
Vane piece, 12 length of auger stem should be no more than 3m, and be connected between double-wall drill pipe 4 and drill bit 14.It is opened on auger stem 14
If deslagging window 10 at one, the drilling cuttings of outer ring channel 22 is suspended in along the helical blade uplink of auger stem 12, and passes through deslagging
Window 10 enter center slagging channel 20 and on return to earth's surface.In addition, the helical blade on auger stem 12 can form multiple tracks annular groove
Formula seals, and is conducive to the Fluid Sealing of outer ring channel 22, it is ensured that the stability of reacting cycle deslagging.
The drilling tool structure is integrated with reacting cycle deslagging, three kinds of advanced technologies of auger stem deslagging and concentric casing drilling and one
Body can effectively solve the undergauge of Soft rock layer, cave in, the drilling accidents such as hole wall unstability, realize drilling, anti-collapse, dedusting, retaining wall
Institutional operation.
Soft rock layer reverse circulation drilling process is as shown in Figure 1 and Figure 5：
A, reacting cycle casing drilling tool is installed, reacting cycle casing drilling tool is coaxial triple channel structure, in double-wall drill pipe inner tube 6
The centre bore of heart hole and auger stem inner tube 9 constitutes slagging channel 20, between auger stem inner tube 9 and auger stem outer tube 11
Annular gap constitutes inlet channel 21, and the annular gap between auger stem outer tube 11 and casing 7 constitutes outer ring channel 22；
B, compressed air is sent to the annular gap of double-wall drill pipe 4 by air inlet pipe 3 through power head 2, and along auger stem
12 inlet channel 21 is shunted after coming downwards to the annular groove shape inlet plenum 19 of drill bit 14, and portion of air is sprayed outward through nozzle 16
It penetrates, forms air jet and wash away cutting 15 underlying soft rock-soil layer of shoe, assisted machining sword 17 turns round detritus, another part air
It is sprayed obliquely through perforation 18, forms negative pressuren zone in slagging channel 20 and swabbing action is generated to the drilling cuttings of foot of hole, make
The drilling cuttings of foot of hole enter slagging channel 20 and on return, while being suspended in the drilling cuttings of outer ring channel 22 along auger stem 12
Helical blade uplink, and enter slagging channel 20 through deslagging window 10, two parts drilling cuttings one ibid returns, and enters by scum pipe 1
To earth's surface collection device；
C, in Soft rock layer drilling process, after power head 2 is connect with double-wall drill pipe 4, power head 2 drives double-wall drill pipe
4,14 synchronous revolving of auger stem 12 and drill bit, at the same drill bit 14 by spline and step towards shoe 15 apply rotary torque and
Axial compressive force protects hole wall using casing 7, and then realizes concentric casing drilling.
Center deslagging technological principle：Under the driving of rotary motive power head 2, double wall drill tool system drives drill bit 14 in soft rock
Soil layer realizes drilling operation, and in drilling process, compressed air enters power head 2 by air inlet pipe 3, and sequentially enters double-walled brill
The outer czermak space of bar 4 and auger stem 12 enters inlet channel 21, and shunting is formed after most reaching the inlet plenum 19 of drill bit 14.One
Partial air forms radial high-speed jet, the Rock And Soil of 15 lower section of assisted machining shoe by the nozzle 16 on drill bit 14；Separately
Portion of air is sprayed obliquely by the perforation 18 on drill bit 14, and forms negative pressuren zone inside slagging channel 20, suction
The drilling cuttings drilling cuttings of foot of hole is entered on slagging channel 20 and is returned.The drilling cuttings of outer ring channel 22 is suspended in then with auger stem
12 revolution enters slagging channel 20 along helical blade uplink, and by deslagging window 10.And helical blade is also in outer ring channel
22 form the sealing of multiple tracks annular groove, it is ensured that the stability that fluid reacting cycle is formed.Drilling cuttings on slagging channel 20 eventually by returning, cocurrent
Through auger stem inner tube 9, double-wall drill pipe inner tube 6, power head 2 is entered, and eventually by returning to earth's surface on scum pipe 1, and by
Earth's surface collection device receives.In drilling process, drill bit 14 applies rotary torque and axial direction by spline and step towards shoe 15
Pressure, and hole wall is protected using casing 7, and then realize concentric casing drilling.
The drilling process is integrated with reacting cycle deslagging, three kinds of advanced technologies of auger stem deslagging and concentric casing drilling and one
Body can effectively solve the undergauge of Soft rock layer, cave in, the drilling accidents such as hole wall unstability, realize drilling, anti-collapse, dedusting, retaining wall
Institutional operation.
Claims (4)
1. Soft rock stratum reacting cycle casing drilling tool, it is characterised in that：Including scum pipe (1), power head (2), air inlet pipe
(3), double-wall drill pipe (4), casing (7), auger stem (12), drill bit (14), shoe (15), nozzle (16), cutting edge (17) and
Perforation (18), double-wall drill pipe (4) top are provided with power head (2), double-wall drill pipe (4) by power head (2) respectively with
Scum pipe (1), air inlet pipe (3) connection；Auger stem (12) upper end passes through auger stem top connection (8) and double-wall drill pipe
(4) it connects, auger stem (12) lower end is threadedly coupled by auger stem lower contact (13) with drill bit (14), wherein double-wall drill pipe
(4) be made of double-wall drill pipe outer tube (5) and double-wall drill pipe inner tube (6), double-wall drill pipe outer tube (5) and double-wall drill pipe inner tube (6) it
Between constitute annular gap, offer deslagging window (10) on auger stem (12) side wall, auger stem (12) is double-layer structure, spiral
Drilling rod (12) includes coaxially arranged auger stem inner tube (9) and auger stem outer tube (11), auger stem inner tube (9) and spiral
Drilling rod outer tube (11) forms annular gap, and the length of auger stem inner tube (9) is more than the length of auger stem outer tube (11), spiral
Drilling rod outer tube (11) side wall outside weldings have helical blade；Described sleeve pipe (7) and shoe (15) forming sleeves assembly, the casing are total
At being set in double-wall drill pipe (4), auger stem top connection (8), auger stem (12), auger stem lower contact (13) and drill bit
(14) external；
Reacting cycle casing drilling tool is coaxial triple channel structure, the centre bore of double-wall drill pipe inner tube (6) and auger stem inner tube (9)
Centre bore constitute slagging channel (20), the annular gap between auger stem inner tube (9) and auger stem outer tube (11) constitute into
Gas channel (21), the annular gap between auger stem outer tube (11) and casing (7) constitute outer ring channel (22)；
The drill bit (14) has the double-walled construction being made of inner and outer wall, and the interlayer space between inner and outer wall is formed
Annular groove shape inlet plenum (19) is provided with spline on drill bit (14), and drill bit (14) is against by spline on the step surface of shoe (15),
It is inlaid with cutting edge (17) in drill bit (14) working end, and is provided with the mouth of a river；
On drill bit (14), nozzle (16) is radially arranged along drill bit (14) for the nozzle (16) and perforation (18) interlaced arrangement；
Perforation (18) is inclined to set, and the center line of perforation (18) is in 30 ° of angles with the axis of drill bit (14).
2. Soft rock stratum reacting cycle casing drilling tool according to claim 1, it is characterised in that：On the auger stem
Connector (8) upper end is threadedly coupled with double-wall drill pipe outer tube (5), auger stem top connection (8) lower end and auger stem outer tube (11)
It is threadedly coupled；Auger stem inner tube (9) upper end is connect with double-wall drill pipe inner tube (6) using inserting mode, in auger stem
Pipe (9) lower end is connect with drill bit (14) using inserting mode；Auger stem lower contact (13) upper end and auger stem outer tube
(11) it is threadedly coupled, auger stem lower contact (13) lower end is threadedly coupled with drill bit (14)；Described sleeve pipe (7) is adopted with shoe (15)
It is threadedly coupled, and passes through spline and drill bit (14) grafting.
3. Soft rock stratum reacting cycle casing drilling tool according to claim 1, it is characterised in that：Nozzle (16) number
Amount is three, and three nozzles (16) are distributed on drill bit (14)；Perforation (18) quantity is three, and three perforations (18) are equal
Cloth is on drill bit (14), perforation (18) and nozzle (16) interlaced arrangement.
4. Soft rock stratum reacting cycle casing drilling tool according to claim 1, it is characterised in that：The auger stem
(12) length is less than or equal to 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144094.3U CN207813526U (en) | 2018-01-29 | 2018-01-29 | Soft rock stratum reacting cycle casing drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820144094.3U CN207813526U (en) | 2018-01-29 | 2018-01-29 | Soft rock stratum reacting cycle casing drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813526U true CN207813526U (en) | 2018-09-04 |
Family
ID=63321829
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820144094.3U Active CN207813526U (en) | 2018-01-29 | 2018-01-29 | Soft rock stratum reacting cycle casing drilling tool |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086930A (en) * | 2018-01-29 | 2018-05-29 | 吉林大学 | Soft rock stratum reacting cycle casing drilling tool and drilling process |
| CN109488235A (en) * | 2018-12-06 | 2019-03-19 | 中建地下空间有限公司 | A kind of well-flushing dreg removing system matched with sinking method shaft excavation machine |
| CN109882092A (en) * | 2019-03-25 | 2019-06-14 | 无锡市安曼工程机械有限公司 | Two fluid grouting drilling tool |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN111577163A (en) * | 2020-05-27 | 2020-08-25 | 重庆大学 | Double-reverse-circulation continuous deslagging drilling tool |
| CN116335531A (en) * | 2023-05-30 | 2023-06-27 | 山西晋恒源岩土工程有限责任公司 | Geotechnical engineering drilling machine |
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2018
- 2018-01-29 CN CN201820144094.3U patent/CN207813526U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086930A (en) * | 2018-01-29 | 2018-05-29 | 吉林大学 | Soft rock stratum reacting cycle casing drilling tool and drilling process |
| CN108086930B (en) * | 2018-01-29 | 2024-03-26 | 吉林大学 | Reverse circulation pipe following drilling tool for soft rock stratum and drilling process |
| CN109488235A (en) * | 2018-12-06 | 2019-03-19 | 中建地下空间有限公司 | A kind of well-flushing dreg removing system matched with sinking method shaft excavation machine |
| CN109882092A (en) * | 2019-03-25 | 2019-06-14 | 无锡市安曼工程机械有限公司 | Two fluid grouting drilling tool |
| CN111058762A (en) * | 2019-12-26 | 2020-04-24 | 华北有色工程勘察院有限公司 | Device for conveniently drilling in broken rock mass and drilling method thereof |
| CN111577163A (en) * | 2020-05-27 | 2020-08-25 | 重庆大学 | Double-reverse-circulation continuous deslagging drilling tool |
| CN111577163B (en) * | 2020-05-27 | 2021-09-28 | 重庆大学 | Double-reverse-circulation continuous deslagging drilling tool |
| CN116335531A (en) * | 2023-05-30 | 2023-06-27 | 山西晋恒源岩土工程有限责任公司 | Geotechnical engineering drilling machine |
| CN116335531B (en) * | 2023-05-30 | 2023-08-08 | 山西晋恒源岩土工程有限责任公司 | Geotechnical engineering drilling machine |
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