CN104453707A - Forming device and method of underground large-diameter horizontal rescue borehole for mine accidents - Google Patents
Forming device and method of underground large-diameter horizontal rescue borehole for mine accidents Download PDFInfo
- Publication number
- CN104453707A CN104453707A CN201410765995.0A CN201410765995A CN104453707A CN 104453707 A CN104453707 A CN 104453707A CN 201410765995 A CN201410765995 A CN 201410765995A CN 104453707 A CN104453707 A CN 104453707A
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- Prior art keywords
- rescue
- bit
- hole
- major diameter
- sleeve pipe
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
- E21B7/203—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means using down-hole drives
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
Abstract
The invention discloses a forming device and a method of underground large-diameter horizontal rescue borehole for mine accidents. The device comprises a ring-shaped bit, a central bit and a casing shoe. The ring-shaped bit is provided with a ring-shaped bit shoulder and a spiral locking structure of the ring-shaped bit, the spiral locking structure of the ring-shaped bit is used for rotatably unlocking, the central bit is provided with a central bit shoulder and a spiral locking structure of the central bit, the locking structure of the central bit spiral is used for rotatably unlocking, a chip groove is formed in the side wall of the central drill along an axial direction, one end of the casing shoe is arranged on the ring-shaped drill in a sleeved mode, the other end of the casing shoe is arranged on the central drill in a sleeved mode, the spiral locking structure of the ring-shaped drill is coordinately connected with the spiral locking structure of the central drill. The invention also discloses a hole-forming method for underground large-scale horizontal rescue during mine accident. The hole-drilling and hole-forming device and the hole-forming method for underground large-scale horizontal rescue during mine accident allows the large-diameter rescue borehole to be formed once, has high drilling efficiency and benefits speeding-up of rescue.
Description
Technical field
The invention belongs to mine accident rescue technique field, be specifically related to Completion of Drilling Hole device and the hole forming method of the major diameter level rescue of a kind of mine accident down-hole.
Background technology
Underground coal mine accident mainly comprises: gas accident, floods, fire, roof fall and dust disaster etc.These disaster accidents often cause huge equipment and property loss, and even personnel are stranded and personal injury.Prevention down-hole disaster accident of should adopting an effective measure in coal production process occurs; Should remedy in time for the disaster accident occurred, especially in the situation having personnel stranded, must carry out with all strength, succour in time, injures and deaths are down to minimum.At present, manual rescue is the conventional means of mine accident rescue, and occupies leading position in mine rescue.But the stranded region of personnel cannot be arrived in time (as: tunnel caves in, serious fire, Gas Outburst etc.) rescue personnel in some cases and implement rescue, trapped personnel may be caused because the reasons such as anoxic, poisoning, deprivation of food cause physically and mentally healthy impaired and even lose one's life.In this case, coal mine down-hole drilling can be adopted to provide provisions to trapped personnel, maintain its life, wait for rescue the arrival of personnel; Or directly adopt underground coal mine major diameter relief wellbore that trapped personnel is rescued downhole safety region.
Boring rescue is the important component part of mine accident rescue technique.Coal mine rescue boring is at coal mine rescue, passway for escaping by the situation of ruining, in coal mine downhole safety region to the boring for life investigation, psychological counseling, provisions conveying and personnel escape of personnel stranded district construction or the general designation of the boring for hazard management of constructing to disaster district emergency area.Relief wellbore can be divided into conventional relief wellbore and major diameter relief wellbore according to purposes difference, conventional relief wellbore be mainly used in life investigation, psychological counseling, provisions carry and the relief wellbore of hazard management, this kind of boring aperture is generally not more than 200mm, difficulty of construction is lower, applies more in rescue; Major diameter relief wellbore is the relief wellbore for personnel escape to personnel's stranded region construction, the through-hole diameter that this kind of boring is formed generally can reach more than 500mm, pore-forming difficulty is large, especially under loose and broken formation condition, at present, major diameter relief wellbore is not also used for the maturation method of accident trapped personnel rescue by underground coal mine.
The existing technique mainly conventional rotary drilling technique that can be used for major diameter relief wellbore pore-forming, its technical characterstic is: first adopt conventional drilling tool construction pilot hole, the reaming bit of the supporting different size of major diameter auger stem is adopted to carry out 2 ~ 3 forward reamings from small to large again, final formation major diameter relief wellbore.What this drilling process adopted is open-hole drilling process, hole wall is without an overfill protection, be only applicable to the major diameter relief wellbore construction under good ground condition, creep in loose and broken formation (as: tunnel collapse rock mass, soft and broken seam, cranny development rock stratum etc.), wall stability is poor, pore-forming difficulty is large, the needs that cannot completely rescue; The supporting complexity of drilling tool of this construction technology, construction sequence are loaded down with trivial details, cause that drilling construction workload is large, efficiency of construction is low, thus affect rescue progress; Adopt this drilling process to carry out the construction of major diameter relief wellbore, landwaste often cannot discharge boring completely, and the landwaste be retained in hole can be piled up at hole wall lower edge, brings adverse effect to rescue work; The major diameter relief wellbore of constructing in coal seam, coal body can discharge gas in boring, causes oxygen in boring to lack, threatens safe rescue.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides Completion of Drilling Hole device and the hole forming method of the major diameter level rescue of a kind of mine accident down-hole.
For achieving the above object, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides the Completion of Drilling Hole device of a kind of mine accident down-hole major diameter level rescue, this device comprises: annular bit, center bit, casing shoe, described annular bit is provided with annular bit shoulder and the annular bit twist-lock structure for rotating unblock, described center bit is provided with center bit shoulder and the center bit twist-lock structure for rotating unblock, the sidewall of described center bit is in axial direction provided with chip area, one end of described casing shoe is set on annular bit, the other end is set on center bit, described annular bit twist-lock structure is connected with center bit twist-lock respective outer side edges.
In such scheme, one end of described center bit is connected with one end of down-hole hammer, and the other end of described down-hole hammer is connected with auger stem.
In such scheme, described casing shoe is connected with the sleeve pipe be set in outside down-hole hammer, auger stem.
In such scheme, described annular bit shoulder overlaps with first set shoe shoulder, and the second casing shoe shoulder on described casing shoe coordinates with described center bit shoulder.
The embodiment of the present invention also provides the hole forming method of a kind of mine accident down-hole major diameter level rescue, and the method is realized by following steps:
Step one, major diameter relief wellbore of constructing between downhole safety district and the stranded district of personnel, after described major diameter relief wellbore is through, slowly rotating backward auger stem makes center bit and annular bit unlock, auger stem, down-hole hammer, center bit are proposed sleeve pipe, described sleeve pipe is stayed in major diameter relief wellbore, and described annular bit is stayed in sleeve pipe;
Step 2, in sleeve pipe under enter particle size joint annular bit ejected sleeve pipe, to reach maximum diameter and unimpeded in retaining sleeve.
In such scheme, also comprise after described step 2:
Step 3, in sleeve pipe under enter to rescue storehouse, top, described rescue storehouse is connected with drilling rod, is transferred rescue storehouse to the stranded region of personnel, carry to safety zone, complete the rescue of trapped personnel after trapped personnel warehouse entry by rescue storehouse by the mode of lower brill.
In such scheme, described rescue storehouse is provided with single action mechanism near orifice end, and described single action mechanism is connected with a stabilizer, and described stabilizer is connected with drilling rod.
In such scheme, the warehouse outer wall in described rescue storehouse is provided with roller, and the bottom in described rescue storehouse is provided with counterweight.
Compared with prior art, beneficial effect of the present invention:
The present invention can realize major diameter relief wellbore disposal pore-forming, and drilling construction efficiency is high, is conducive to accelerating rescue progress; Sleeve pipe makes pipe-following drilling technique be applicable to the needs of major diameter relief wellbore construction under good ground condition and caving ground condition to the real-time support of hole wall and protection simultaneously; In pipe-following drilling, internal surface of sleeve pipe defines optimal deslagging conditions, and landwaste can be discharged by auger stem completely, keeps rescue channels open; Construct in coal seam relief wellbore time, rescue passage and coal seam can effectively isolate by sleeve pipe, prevent gas in coal seam to pour in rescue passage, are conducive to rescue safety.
Accompanying drawing explanation
Fig. 1 is the structure chart of annular bit of the present invention;
Fig. 2 is the structure chart of center bit of the present invention;
Fig. 3 is the structure chart of casing shoe of the present invention;
Fig. 4 is hole-forming device johning knot composition of the present invention;
Fig. 5 is hole forming method schematic diagram of the present invention;
Fig. 6 is rescue mode schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The embodiment of the present invention provides the Completion of Drilling Hole device of a kind of mine accident down-hole major diameter level rescue, as shown in Fig. 1 ~ 4, this device comprises: annular bit 1, center bit 4, casing shoe 8, described annular bit 1 is provided with annular bit shoulder 2 and the annular bit twist-lock structure 3 for rotating unblock, described center bit 4 is provided with center bit shoulder 6 and the center bit twist-lock structure 5 for rotating unblock, the sidewall of described center bit 4 is in axial direction provided with chip area 7, one end of described casing shoe 8 is set on annular bit 1, the other end is set on center bit 4, described annular bit twist-lock structure 3 is connected with center bit twist-lock structure 5.
One end of described center bit 4 is connected with one end of down-hole hammer 11, and the other end of described down-hole hammer 11 is connected with auger stem 13.
Described casing shoe 8 is connected with the sleeve pipe 12 be set in outside down-hole hammer 11, auger stem 13.
Described annular bit shoulder 2 overlaps with first set shoe shoulder 10, and the second casing shoe shoulder 9 on described casing shoe 8 coordinates with described center bit shoulder 6.
When carrying out the construction of major diameter relief wellbore, casing shoe 8 is enclosed within annular bit 1, annular bit shoulder 2 end face is overlapped with casing shoe shoulder 10 end face; Penetrate bottom center bit 4 from casing shoe 8 other end forward again, (or counterclockwise) center of rotation drill bit 4 or counterclockwise (clockwise) rotary annular drill bit 1 clockwise, center bit 4 and annular bit 1 are cooperatively interacted with annular bit twist-lock mechanism 3 and center bit twist-lock mechanism 5 respectively, and described center bit 4 can drive annular bit 1 synchronous clockwise (or counterclockwise) to rotate and axially reciprocating; Described down-hole hammer 11 one end is connected with center bit spline, and the other end is connected with auger stem 13, and described auger stem 13 can adopt clockwise (or counterclockwise) screws screw thread or socket connection mode is connected, and can transmit the pressure of the drill, pulling force and moment of torsion; Described sleeve pipe 12 and casing shoe 2 by weld, clockwise (or counterclockwise) screw screw thread or radial screw is connected, described sleeve pipe 12 screws screw thread by (or counterclockwise) clockwise or radial screw is connected, can transmit the pressure of the drill, pulling force and moment of torsion.
In pipe-following drilling process, rig drives down-hole hammer 11 to turn round by clockwise (or counterclockwise) auger stem 13, and applying the pressure of the drill, pressure-air is entered by auger stem 13 central through hole and drives down-hole hammer 11 simultaneously, and described down-hole hammer 11 drives center bit 4 to carry out rotary-percussive drilling; Described center bit 4 passes through the effect between the center bit twist-lock mechanism 5 of center bit 4 and the annular bit twist-lock mechanism 3 of annular bit 1, drives annular bit 1 to carry out synchronous rotary-percussive drilling; Interaction between the center bit shoulder 6 of described center bit 3 and the second casing shoe shoulder 9 of casing shoe 8, can make casing shoe 8 drive sleeve pipe 12 to follow center bit 4 and synchronously enter boring; Because annular bit 1, center bit 4 facing sleeve boots 8 can relatively rotate, in pipe-following drilling process, casing shoe 8 and sleeve pipe 12 do not rotate; High velocity air carries rock dust, and by chip area 7 with between down-hole hammer 11 and sleeve pipe 12, annular space is between auger stem 13 and sleeve pipe 12, and auger stem 13 arranges powder function by the performance that relatively rotates between sleeve pipe 12; Annular bit shoulder 2 due to annular bit 1 is subject to the restriction of first set shoe 10, is synchronously proposed by the sleeve pipe 12 in hole by lift auger stem 13.
When pipe-following drilling enters stable rock stratum 14, under rig feeds power and down-hole hammer 11 percussion, drive center bit 4, annular bit 1, casing shoe 8, sleeve pipe 12 to enter boring, described sleeve pipe 12 is shown in there is gap with hole wall; When creep into enter caving ground 15 time, under rig feeds power and down-hole hammer 11 percussion, drive center bit 4, annular bit 1, casing shoe 8, sleeve pipe 12 also can enter boring, caving ground 15 hole section is caved in rock mass sleeve 12 supporting, ensure safety and row's powder channels open of the annular bit 1 of casing shoe 8 and sleeve pipe 12 inside, center bit 4, down-hole hammer 11 and auger stem 13, ensure to creep into normally to carry out.
The embodiment of the present invention also provides the hole forming method of a kind of mine accident down-hole major diameter level rescue, and as shown in Figure 5, the method is realized by following steps:
Step one, major diameter relief wellbore of constructing between downhole safety district and the stranded district of personnel, after described major diameter relief wellbore is through, slowly rotating backward auger stem 13 makes center bit 4 and annular bit 1 unlock, auger stem 13, down-hole hammer 11, center bit 1 are proposed sleeve pipe 12, described sleeve pipe 12 is stayed in major diameter relief wellbore, and described annular bit 1 is stayed in sleeve pipe 12;
Step 2, in sleeve pipe 12 under enter particle size joint annular bit ejected sleeve pipe 12, to reach maximum diameter and unimpeded in retaining sleeve 12.
The embodiment of the present invention also provides the rescue mode of a kind of mine accident down-hole major diameter level rescue, and as shown in Figure 5,6, the method is realized by following steps:
Step one, major diameter relief wellbore of constructing between downhole safety district and the stranded district of personnel, after described major diameter relief wellbore is through, slowly rotating backward auger stem 13 makes center bit 4 and annular bit 1 unlock, auger stem 13, down-hole hammer 11, center bit 1 are proposed sleeve pipe 12, described sleeve pipe 12 is stayed in major diameter relief wellbore, and described annular bit 1 is stayed in sleeve pipe 12;
Step 2, in sleeve pipe 12 under enter particle size joint annular bit ejected sleeve pipe 12, to reach maximum diameter and unimpeded in retaining sleeve 12.
Step 3, in sleeve pipe 12 under enter to rescue storehouse 18, top, described rescue storehouse 18 is connected with drilling rod 19, by the mode of lower brill, rescue storehouse 18 is transferred to the stranded region of personnel, carry to safety zone by rescue storehouse 18 after trapped personnel warehouse entry, complete the rescue of trapped personnel.
Described rescue storehouse 18 is provided with single action mechanism 22 near orifice end, and described single action mechanism 22 is connected with a stabilizer 23, and described stabilizer 23 is connected with drilling rod 19.
The warehouse outer wall in described rescue storehouse 18 is provided with roller 20, and the bottom in described rescue storehouse 18 is provided with counterweight.
When after the rock mass that pipe-following drilling runs through between safety zone 16 and the stranded region 17 of personnel, slowly counterclockwise (or clockwise) rotate and gently carry drilling tool auger stem 13, the twist-lock mechanism 5 of center bit 4 is unlocked with the twist-lock mechanism 3 of annular bit 1; Pull out of hole the auger stem 13, down-hole hammer 11 and the center bit 4 that propose in sleeve pipe 12, and annular bit 1, casing shoe 8 sleeve pipe 12 are stayed in hole; After center bit 4 and annular bit 1 unlock, annular bit 1 can facing sleeve boots 8 axial separation, now can adopt common drilling rod band one external diameter be greater than annular bit 1 internal diameter and can through the particle size joint of sleeve pipe 12 and casing shoe 8 endoporus, under enter in sleeve pipe 12 and casing shoe 8, by annular bit 1 ejector sleeve shoe 8, then propose drilling tool, in hole, only retain the rescue passage of casing shoe 8 and sleeve pipe 12 formation.
When implementing rescue, described single action mechanism 22 other end is connected with stabilizer 23, described stabilizer 23 other end is connected with drilling rod 19, and pass from sleeve pipe 12 and casing shoe 8 through hole, in the stranded region 17 of the personnel that enter, enter behind rescue storehouse 18 until trapped personnel and carry brill, rescue storehouse 18 is carried in safety zone 16, thus completes rescue; Between rescue implementation period, sleeve pipe 12 pairs of hole walls support in real time and protect, and prevent collapse hole in caving ground 15 from causing the situation of rescue channel blockage to occur.
During rescue work, described roller 20 can reduce the frictional resistance between rescue storehouse 18 warehouse and sleeve pipe 12; Single action mechanism 22 can transmit the axial force removing rescue storehouse 18, prevents rescue storehouse 18 from following drilling rod 19 synchronous axial system simultaneously; Described counterweight 21 can prevent rescue storehouse 18 from rotating in sleeve pipe 12 removing in process; Stabilizer 23 can ensure stability when removing rescue storehouse 18.
Claims (8)
1. the Completion of Drilling Hole device of a mine accident down-hole major diameter level rescue, it is characterized in that, this device comprises: annular bit (1), center bit (4), casing shoe (8), described annular bit (1) is provided with annular bit shoulder (2) and the annular bit twist-lock structure (3) for rotating unblock, described center bit (4) is provided with center bit shoulder (6) and the center bit twist-lock structure (5) for rotating unblock, the sidewall of described center bit (4) is in axial direction provided with chip area (7), one end of described casing shoe (8) is set on annular bit (1), the other end is set on center bit (4), described annular bit twist-lock structure (3) and center bit twist-lock structure (5) are connected.
2. the Completion of Drilling Hole device of mine accident down-hole according to claim 1 major diameter level rescue, it is characterized in that: one end of described center bit (4) is connected with one end of down-hole hammer (11), the other end of described down-hole hammer (11) is connected with auger stem (13).
3. mine accident down-hole according to claim 2 major diameter level rescue Completion of Drilling Hole device, it is characterized in that: described casing shoe (8) be set in down-hole hammer (11), auger stem (13) sleeve pipe outward (12) is connected.
4. the Completion of Drilling Hole device of mine accident down-hole according to claim 1 major diameter level rescue, it is characterized in that: described annular bit shoulder (2) overlaps with first set shoe shoulder (10), the second casing shoe shoulder (9) on described casing shoe (8) coordinates with described center bit shoulder (6).
5. a hole forming method for mine accident down-hole major diameter level rescue, it is characterized in that, the method is realized by following steps:
Step one, major diameter relief wellbore of constructing between downhole safety district and the stranded district of personnel, after described major diameter relief wellbore is through, slowly rotating backward auger stem (13) makes center bit (4) and annular bit (1) unlock, auger stem (13), down-hole hammer (11), center bit (1) are proposed sleeve pipe (12), described sleeve pipe (12) is stayed in major diameter relief wellbore, and described annular bit (1) is stayed in sleeve pipe (12);
Step 2, in sleeve pipe (12) under enter particle size joint and annular bit ejected sleeve pipe (12), to reach maximum diameter and unimpeded in retaining sleeve (12).
6. the hole forming method of mine accident down-hole according to claim 5 major diameter level rescue, is characterized in that: also comprise after described step 2:
Step 3, in sleeve pipe (12) under enter to rescue storehouse (18), described rescue storehouse (18) top is connected with drilling rod (19), to rescue storehouse (18) by the mode of lower brill transfers to the stranded region of personnel, to rescue after trapped personnel warehouse entry and storehouse (18) will be carried to safety zone, complete the rescue of trapped personnel.
7. the hole forming method of mine accident down-hole according to claim 6 major diameter level rescue, it is characterized in that: described rescue storehouse (18) is provided with single action mechanism (22) near orifice end, described single action mechanism (22) is connected with a stabilizer (23), and described stabilizer (23) is connected with drilling rod (19).
8. the hole forming method of mine accident down-hole according to claim 7 major diameter level rescue, it is characterized in that: the warehouse outer wall of described rescue storehouse (18) is provided with roller (20), the bottom of described rescue storehouse (18) is provided with counterweight (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765995.0A CN104453707A (en) | 2014-12-15 | 2014-12-15 | Forming device and method of underground large-diameter horizontal rescue borehole for mine accidents |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765995.0A CN104453707A (en) | 2014-12-15 | 2014-12-15 | Forming device and method of underground large-diameter horizontal rescue borehole for mine accidents |
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| CN104453707A true CN104453707A (en) | 2015-03-25 |
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| CN201410765995.0A Pending CN104453707A (en) | 2014-12-15 | 2014-12-15 | Forming device and method of underground large-diameter horizontal rescue borehole for mine accidents |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863512A (en) * | 2016-04-13 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam ladder pipe-tracing compound directional drilling pore-forming device and method |
| CN107485803A (en) * | 2017-09-22 | 2017-12-19 | 吴蔷薇 | Search and rescue device after shake |
| CN108999568A (en) * | 2018-07-06 | 2018-12-14 | 中国铁建重工集团有限公司 | A kind of tunnel rescue drilling machine |
| CN109555483A (en) * | 2018-12-27 | 2019-04-02 | 河南龙腾新型钻具制造有限公司 | A kind of interior quickly without hindrance setting of casing method of coal mine roadway drilling |
| CN109611024A (en) * | 2018-11-21 | 2019-04-12 | 北京大地高科地质勘查有限公司 | A kind of construction method of large aperture emergency management and rescue drilling |
| CN110656931A (en) * | 2019-07-02 | 2020-01-07 | 中煤科工集团西安研究院有限公司 | Mining hydraulic drilling-following aperture measuring device and method |
| CN111911083A (en) * | 2020-07-06 | 2020-11-10 | 山东科技大学 | Variable pyramid type drilling powder discharging pressure relief method |
| CN112415576A (en) * | 2020-10-27 | 2021-02-26 | 中煤科工集团西安研究院有限公司 | Walkround while-drilling real-time geosteering technology and device |
| CN113153137A (en) * | 2021-04-20 | 2021-07-23 | 江苏和信石油机械有限公司 | Movable large-diameter drilling emergency rescue equipment |
| CN113482651A (en) * | 2021-07-19 | 2021-10-08 | 中煤地质集团有限公司 | A drilling device of removing obstacles for mine rescue |
| CN113818800A (en) * | 2021-10-20 | 2021-12-21 | 中国地质大学（北京） | Emergency rescue drilling is along with boring water shutoff device |
| CN114470550A (en) * | 2022-01-10 | 2022-05-13 | 河南理工大学 | Earthquake disaster search and rescue equipment |
| CN112415576B (en) * | 2020-10-27 | 2024-04-26 | 中煤科工集团西安研究院有限公司 | Walkround while-drilling real-time geosteering technique and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105863512A (en) * | 2016-04-13 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam ladder pipe-tracing compound directional drilling pore-forming device and method |
| CN107485803A (en) * | 2017-09-22 | 2017-12-19 | 吴蔷薇 | Search and rescue device after shake |
| CN108999568A (en) * | 2018-07-06 | 2018-12-14 | 中国铁建重工集团有限公司 | A kind of tunnel rescue drilling machine |
| CN109611024A (en) * | 2018-11-21 | 2019-04-12 | 北京大地高科地质勘查有限公司 | A kind of construction method of large aperture emergency management and rescue drilling |
| CN109611024B (en) * | 2018-11-21 | 2020-09-18 | 北京大地高科地质勘查有限公司 | Construction method for large-aperture emergency rescue drilling |
| CN109555483A (en) * | 2018-12-27 | 2019-04-02 | 河南龙腾新型钻具制造有限公司 | A kind of interior quickly without hindrance setting of casing method of coal mine roadway drilling |
| CN110656931A (en) * | 2019-07-02 | 2020-01-07 | 中煤科工集团西安研究院有限公司 | Mining hydraulic drilling-following aperture measuring device and method |
| CN111911083A (en) * | 2020-07-06 | 2020-11-10 | 山东科技大学 | Variable pyramid type drilling powder discharging pressure relief method |
| CN112415576A (en) * | 2020-10-27 | 2021-02-26 | 中煤科工集团西安研究院有限公司 | Walkround while-drilling real-time geosteering technology and device |
| CN112415576B (en) * | 2020-10-27 | 2024-04-26 | 中煤科工集团西安研究院有限公司 | Walkround while-drilling real-time geosteering technique and device |
| CN113153137A (en) * | 2021-04-20 | 2021-07-23 | 江苏和信石油机械有限公司 | Movable large-diameter drilling emergency rescue equipment |
| CN113482651A (en) * | 2021-07-19 | 2021-10-08 | 中煤地质集团有限公司 | A drilling device of removing obstacles for mine rescue |
| CN113482651B (en) * | 2021-07-19 | 2023-08-22 | 中煤地质集团有限公司 | Drilling obstacle-removing device for mine rescue |
| CN113818800A (en) * | 2021-10-20 | 2021-12-21 | 中国地质大学（北京） | Emergency rescue drilling is along with boring water shutoff device |
| CN113818800B (en) * | 2021-10-20 | 2022-06-07 | 中国地质大学（北京） | Emergency rescue drilling is along with boring water shutoff device |
| CN114470550A (en) * | 2022-01-10 | 2022-05-13 | 河南理工大学 | Earthquake disaster search and rescue equipment |
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Application publication date: 20150325 |