CN105421995A - Combine hollow shaft bottom power rope coring drilling device - Google Patents
Combine hollow shaft bottom power rope coring drilling device Download PDFInfo
- Publication number
- CN105421995A CN105421995A CN201510804609.9A CN201510804609A CN105421995A CN 105421995 A CN105421995 A CN 105421995A CN 201510804609 A CN201510804609 A CN 201510804609A CN 105421995 A CN105421995 A CN 105421995A
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- China
- Prior art keywords
- wire line
- motor
- line coring
- outer tube
- drilling
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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
- 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
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
Abstract
The invention relates to a combined hollow shaft bottom power rope coring drilling device, and belongs to the technical field of drilling equipment. The combined hollow shaft bottom power rope coring drilling device is composed of an outer assembly and an inner assembly; the outer assembly comprises a hydraulic rotary motor, a suspension outer tube, a hydro-percussive hammer and a drill bit, a drill rod is assembled at the upper end of the outer assembly through a rope coring drill rod connector, the hydraulic rotary motor, the suspension outer tube and the hydro-percussive hammer are each of a hollow structure and are connected in series from top to bottom, a rope coring channel is formed by the hollow structures of the hydraulic rotary motor, the suspension outer tube and the hydro-percussive hammer, and the drill bit is installed at the lower end of the hydro-percussive hammer; the inner assembly is installed in the rope coring channel of the outer assembly in a sleeved mode. By means of the combined hollow shaft bottom power rope coring drilling device, the dynamic power of rope coring drilling of the shaft bottom is increased, the construction efficiency is greatly improved, and the application range of a rope coring drilling method is enlarged.
Description
Technical field
The present invention relates to a kind of hole drilling device, especially a kind of combination hollow downhole motor wire line coring drilling apparatus, belongs to drilling equipment technical field.
Background technology
It is drop into assembly in drilling tool in special cord drill-rod that wire line coring creeps into, after core drill enters to terminate, rope salvaging device is used interior assembly to be salvaged a kind of geological prospecting borehole construction method of earth's surface acquisition core, do not need hundreds of in hole or thousands of meters of drilling rods to propose earth's surface owing to getting core process, therefore substantially increase operating efficiency.
The outer assembly of the drilling tool that conventional wire line coring drilling method uses forms by outer tube connecing cord drill-rod, and interior assembly comprises interior pipe, jump ring and single action suspension assembly, drives drilling rod and drill bit revolution detritus by earth's surface rotary motive power.The technology of new development in recent years increases Hydro-efflux Hammer in interior assembly, screw rod rotary motor, Hydro-efflux Hammer wire line coring drilling method or screw motor+Hydro-efflux Hammer shaft bottom revolution is adopted to impact wire line coring drilling method, thus further increase the operating efficiency that core drill enters, but, above-mentioned two kinds of wire line coring drilling apparatus are all as assembly in drilling tool using screw motor and Hydro-efflux Hammer, enter last with dropping into outer assembly at core drill, creep into after terminating another with salvaging earth's surface, especially in deep well drilling process, by the restriction of top rod through-hole diameter, the outside dimension of screw motor and Hydro-efflux Hammer all must be less than drilling rod through-hole diameter, therefore, the rotary torque produced by screw rod rotary motor and the ballistic work produced by Hydro-efflux Hammer are restricted, can not meet the demands in major diameter core-drilling construction.
Summary of the invention
The invention provides a kind of combination hollow downhole motor wire line coring drilling apparatus, it adopts hollow rotary motor, hollow hydraulic impacter and gets in-core assembly fit structure, realize the object increasing wire line core drilling downhole motor power, the range of application be intended to significantly to improve efficiency of construction, expanding wire line coring drilling method.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of combination hollow downhole motor wire line coring drilling apparatus, is made up of outer assembly and interior assembly; Described outer assembly comprises hydraulic rotary motor, hangs outer tube, hydraulic impacter and drill bit, outer assembly upper end is assembled by borehole wire-line coring drilling rod joint and drilling rod, described hydraulic rotary motor, suspension outer tube, hydraulic impacter are hollow structure, be sequentially connected in series from top to bottom, form wire line coring passage by the hollow structure of hydraulic rotary motor, suspension outer tube, hydraulic impacter, described drill bit is arranged on the lower end of hydraulic impacter; Described interior assembly is sleeved in the wire line coring passage of outer assembly.
Combinations thereof hollow downhole motor wire line coring drilling apparatus, by hydraulic rotary motor, hang wire line coring passage that outer tube, hydraulic impacter hollow structure formed can supply interior assembly down through.
Combinations thereof hollow downhole motor wire line coring drilling apparatus, when drilling apparatus be in normally creep into the course of work time, interior assembly locates locking, and by the wire line coring passage plugging of outer assembly by hanging outer tube; When drilling apparatus is in core work process, interior assembly removes lockup state, moves up and down under fishing device controls along wire line coring passage.
Combinations thereof hollow downhole motor wire line coring drilling apparatus, described hydraulic rotary motor is turbine motor or screw motor; The rotor of described hydraulic rotary motor is hollow structure, and described rotor is connected with suspension outer tube by motor lower contact; Described motor lower contact is hollow circuit cylinder body structure, and its sidewall circumferentially evenly arranges one group of drilling well working solution first flowing hole.
Combinations thereof hollow downhole motor wire line coring drilling apparatus, the suspended tubes of described suspension outer tube is hollow circuit cylinder body structure, its upper end is connected with motor lower contact, wall is arranged the bullet card chamber coordinated with interior assembly within it, circumferentially evenly arrange one group of drilling well working solution second flowing hole at its sidewall, described drilling well working solution second flowing hole is communicated with drilling well working solution first flowing hole of motor lower contact.
Combinations thereof hollow downhole motor wire line coring drilling apparatus, described hydraulic impacter upper end is connected with suspension outer tube by tube connector, described tube connector sidewall is circumferentially evenly arranged one group of drilling well working solution the 3rd flowing hole.
The beneficial effect main manifestations of combination hollow downhole motor wire line coring drilling apparatus of the present invention is in the following areas:
The present invention arranges hydraulic rotary motor and hydraulic impacter in shaft bottom, when ground hydraulic pump is for after it provides the drilling well working solution with certain pressure, the rotary torque produced by hydraulic rotary motor and the ballistic work acting in conjunction that produced by hydraulic impacter are on drill bit, not only increase the operating efficiency that core drill enters, and be arranged on below borehole wire-line coring drilling rod due to hydraulic rotary motor and hydraulic impacter, the gabarite of hydraulic rotary motor and hydraulic impacter is not by the restriction of drilling rod through-hole diameter, therefore can the gabarite of hydraulic rotary motor and hydraulic impacter be designed smaller compared with bore diameter, the rotary torque that hydraulic rotary motor is produced and the ballistic work produced by Hydro-efflux Hammer meet the requirement of large diameter hole core-drilling.
Hydraulic rotary motor and hydraulic impacter are all designed to hollow structure by the present invention, and the passage moved up and down for assembly in corer when forming coring by the hollow structure of hydraulic rotary motor, hydraulic impacter, achieve the wire line coring process not putting brill.
In sum, invention increases wire line core drilling downhole motor power, significantly improve efficiency of construction, expand the range of application of wire line coring drilling method.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention;
Fig. 2 is outer assembly cross-sectional view;
Fig. 3 is interior assembly cross-sectional view;
Fig. 4 hangs outer tube and interior assembly fit structure schematic diagram;
Fig. 5 is hydraulic rotary motor structure and working principle schematic diagram;
Fig. 6 is motor lower contact cross-sectional view;
Fig. 7 is A-A cross-sectional view in Fig. 6;
Fig. 8 hangs outer tube cross-sectional view;
Fig. 9 is B-B cross-sectional view in Fig. 8;
Figure 10 is hydraulic impacter cross-sectional view;
Figure 11 is C-C cross-sectional view in Figure 10;
Figure 12, Figure 13 are hydraulic impacter course of work schematic diagrames.
In figure, each list of reference numerals is:
1, borehole wire-line coring drilling rod joint, 2, hydraulic rotary motor, 2-1, motor case, 2-2, stator, 2-3, rotor, 2-4, bearing group, 2-5, motor lower contact, 2-5-1, drilling well working solution first flowing hole, 3, interior assembly, 3-1, drag for spearhead, 3-2, recovery tube, 3-3, bullet card, 3-4, play card holder, 3-5, pressure bearing, 3-6, bearing support, 3-7, mandrel, 3-8, interior pipe, 4, hang outer tube, 4-1, suspended tubes, 4-1-1, drilling well working solution second flowing hole, 4-1-2, bullet card chamber, 4-2, outer tube, 4-3, internal lining pipe, 4-4, drilling well working solution overcurrent chamber, 4-5, bracing frame, 5, hydraulic impacter, 5-1, tube connector, 5-1-1, drilling well working solution the 3rd flowing hole, 5-2, impactor top connection, 5-3, piston, 5-4, sleeving valve, 5-5, impactor shell, 5-6, jump bit, 5-7, fairlead, 5-8, hammering block, 5-9, impactor lower contact, 5-10, ejector, 5-11, pressure balance chamber, 5-12, hold spout, 5-13, trunnion, 5-14, diffusion hole, 5-15, valve port, 5-16, plunger, 5-17, drilling well working solution flow cavity, 5-18, leakage fluid dram, 6, drill bit, 7, drilling well working solution,
M, seat hermetically-sealed construction.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
It should be noted that, the upper and lower identified in accompanying drawing to for the present invention in running order time upper and lower to, with mention in the embodiment of the present invention " on ", direction represented by the noun of locality such as D score is consistent.
Referring to Fig. 1, Fig. 2, Fig. 4, combination hollow downhole motor wire line coring drilling apparatus of the present invention is made up of outer assembly and interior assembly 3; Described outer assembly comprises hydraulic rotary motor 2, hangs outer tube 4, hydraulic impacter 5 and drill bit 6, outer assembly upper end is assembled by borehole wire-line coring drilling rod joint 1 and drilling rod, described hydraulic rotary motor 2, suspension outer tube 4, hydraulic impacter 5 are hollow structure, be sequentially connected in series from top to bottom, form wire line coring passage by the hollow structure of hydraulic rotary motor 2, suspension outer tube 4, hydraulic impacter 5, described drill bit 6 is arranged on the lower end of hydraulic impacter 5; Described interior assembly 3 is sleeved in the wire line coring passage of outer assembly, when drilling apparatus is in and normally creeps into the course of work, interior assembly 3 locates locking by suspension outer tube 4, by wire line coring passage plugging, when drilling apparatus is in core work process, interior assembly 3 removes lockup state, moves up and down under fishing device controls along wire line coring passage.
Referring to Fig. 5, Fig. 6, Fig. 7, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, described hydraulic rotary motor 2 is turbine motor or screw motor preferably; Motor case 2-1, stator 2-2, rotor 2-3, bearing group 2-4 and motor lower contact 2-5 are set in hydraulic rotary motor 2; Described stator 2-2 is arranged on motor case 2-1 inwall, coordinates assemble with rotor 2-3; Described rotor 2-3 is hollow structure, and rotor 2-3 is connected with suspension outer tube 4 by motor lower contact 2-5; Described motor lower contact 2-5 is hollow circuit cylinder body structure, its sidewall circumferentially evenly arranges one group of drilling well working solution first flowing hole 2-5-1, between motor lower contact 2-5 and motor case 2-1, arranges bearing group 2-4.
Referring to Fig. 1, Fig. 5, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, the operating principle of hydraulic rotary motor 2 is: ground hydraulic pump provides the drilling well working solution 7 with certain pressure for it, operated by drilling well working solution 7 CD-ROM drive motor rotor 2-3 and produce rotary torque, this rotary torque acts on drill bit 6, for drill bit 6 provides rotary power by motor lower contact 2-5, suspension outer tube 4 and hydraulic impacter.
Referring to Fig. 3, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, described interior assembly 3 comprise drag for spearhead 3-1, recovery tube 3-2, play card holder 3-4, bearing support 3-6, mandrel 3-7 and interior pipe 3-8; Described drag for spearhead 3-1, play card holder 3-4 and bearing support 3-6 from top to bottom assemble successively, described recovery tube 3-2 is sleeved on and plays outside card holder 3-4, described bullet card holder 3-4 upper end arranges bullet card 3-3, the described upper and lower two ends of mandrel 3-7 are equipped with pressure bearing 3-5, described pressure bearing 3-5 is arranged in bearing support 3-6, pipe 3-8 in the assembling of mandrel 3-7 lower end.
Referring to Fig. 8, Fig. 9, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, described suspension outer tube 4 is provided with suspended tubes 4-1, outer tube 4-2, internal lining pipe 4-3 and bracing frame 4-5; Described suspended tubes 4-1 is hollow circuit cylinder body structure, its upper end is connected with motor lower contact 2-5, wall is arranged the bullet card chamber 4-1-2 coordinated with interior assembly within it, circumferentially evenly arrange one group of drilling well working solution second flowing hole 4-1-1 at its sidewall, described drilling well working solution second flowing hole 4-1-1 is communicated with the drilling well working solution first flowing hole 2-5-1 of motor lower contact 2-5; Described internal lining pipe 4-3, outer tube 4-2 assemble with the inside and outside wall of suspended tubes 4-1 lower end respectively, form drilling well working solution overcurrent chamber 4-4 between internal lining pipe 4-3 and outer tube 4-2, in drilling well working solution overcurrent chamber 4-4, be disposed radially bracing frame 4-5.
Referring to Fig. 1, Fig. 3, Fig. 4, Fig. 8, combination hollow downhole motor wire line coring drilling apparatus of the present invention, in interior assembly 3 launch process, got core vias inner walls size restrictions, bullet card 3-3 is contracted in the inside playing card holder 3-4, throws in after putting in place, bullet card 3-3 enters in the bullet card chamber 4-1-2 hanging outer tube 4, the open-shaped state of bullet card 3-3, coordinates the seat hermetically-sealed construction M playing card holder 3-4 and bullet card chamber 4-1-2, achieves the axial location of interior assembly 3; When carrying brill after drilling process terminates, what rope salvaging device caught on interior assembly 3 drags for spearhead 3-1, upper rope rope fisher, and the recovery tube 3-2 band card 3-3 that moves that first moves up inwardly shrinks, and limit function is removed, and interior assembly 3 can be carried to ground with rope salvaging device.
Referring to Figure 10, Figure 11, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, the preferred embodiment of hydraulic impacter 5 is jet absorption type hydraulic impacter, and this jet absorption type hydraulic impacter comprises tube connector 5-1, impactor top connection 5-2, piston 5-3, jump bit 5-6, fairlead 5-7, impactor shell 5-5, hammering block 5-8 and impactor lower contact 5-9; Described impactor top connection 5-2 upper end is connected with suspension outer tube 4 by tube connector 5-1, and impactor top connection 5-2 lower end and impactor shell 5-5 fix and assemble; Described impactor shell 5-5 lower end assembling impactor lower contact 5-9; It is inner that described hammering block 5-8 is fixed on impactor lower contact 5-9; Described fairlead 5-7 upper end penetrates in impactor top connection 5-2 inner chamber, and lower end and hammering block 5-8 fix and assemble, and at outside piston set 5-3 and the jump bit 5-6 of fairlead 5-7, piston 5-3 lower end and jump bit 5-6 fix and assemble; Mineralization pressure counter balance pocket 5-11 between described piston 5-3 upper surface and impactor top connection 5-2; The lower end of described impactor top connection 5-2 arranges ejector 5-10, and described ejector 5-10 is provided with one group of spray-hole around wire line coring channel arrangement; Outside described piston 5-3, equipped bottom is with the sleeving valve 5-4 of valve port 5-15, be provided with in piston 5-3 upper surface and corresponding with ejector 5-10 hold spout 5-12, evenly arrange one group along piston 5-3 external cylindrical surface circumference and be communicated with the diffusion hole 5-14 holding spout 5-12 and cover valve insertion, described diffusion hole 5-14 upper end and hold between spout and form trunnion 5-13; Described jump bit 5-6 upper end is provided with the plunger 5-16 coordinated with the valve port 5-15 of sleeving valve 5-4, along with valve port 5-15 is closed or opened to moving up and down of jump bit 5-6 by plunger 5-16; Drilling well working solution flow cavity 5-17 is set between described jump bit 5-6 and impactor shell 5-5; Described hammering block 5-8 is hollow structure, end face is arranged the outage 5-18 with hammering block inner space thereon; Described tube connector 5-1 sidewall is circumferentially evenly arranged one group of drilling well working solution the 3rd flowing hole 5-1-1, described drilling well working solution the 3rd flowing hole 5-1-1 upper end is communicated with the drilling well working solution overcurrent chamber 4-4 hanging outer tube 4, and lower end is communicated with the spray-hole of ejector 5-10 in impactor top connection 5-2.
Referring to Fig. 5, Figure 12, Figure 13, in combination hollow downhole motor wire line coring drilling apparatus of the present invention, the mouth spray of described drilling well working solution first flowing hole 2-5-1, drilling well working solution second flowing hole 4-1-1, drilling well working solution overcurrent chamber 4-4, drilling well working solution the 3rd flowing hole 5-1-1, ejector 5-10, pressure balance chamber 5-11, trunnion 5-13, diffusion hole 5-14, drilling well working solution flow cavity 5-17, outage 5-18 and hammering block inner chamber form the drilling well working solution passage of up/down perforation structure.
Referring to Figure 12, Figure 13, the operating principle of hydraulic impacter 5 is: when ejector 5-10 ejection has the drilling well working solution 7 of certain pressure, that is close to that fairlead 5-7 outer wall enters piston 5-3 upper surface due to wall attachment effect drilling well working solution 7 holds spout 5-12, drilling well working solution flow cavity 5-17 is entered through the inner chamber of diffusion hole 5-14, sleeving valve 5-4 and valve port 5-15, then through outage 5-18 and hammering block inner chamber discharged to shaft bottom, in above process, drilling well working solution in pressure balance chamber in 5-11 is sucked up to by trunnion 5-13 under eddy current Involving velocity, diffusion hole 5-14, the inner chamber of sleeving valve 5-4 and valve port 5-15, drilling well working solution flow cavity 5-17, in the working solution passage of outage 5-18 and hammering block inner chamber composition, now pressure balance chamber 5-11 is negative pressure cavity, under piston 5-3 lower surface pressure differential effect thereon, jump bit 5-6 is driven to move upward, after the plunger 5-16 of jump bit 5-6 upper end is by the valve port 5-15 shutoff of sleeving valve, working fluid pressure in pressure balance chamber in 5-11 raises, piston upper surface pressure is greater than piston surface pressure, piston 5-3 and jump bit 5-6 moves downward rapidly, jump bit 5-6 clashes into hammering block 5-8, by impactor lower contact 5-9, impact force is passed to drill bit 6 by hammering block 5-8, now jump bit 5-6 uppermost plunger 5-16 is separated with sleeving valve valve port 5-15, hydraulic impacter 5 enters next working cycles.
In combination hollow downhole motor wire line coring drilling apparatus of the present invention, other embodiments of described hydraulic impacter 5 also comprise jetting type hydraulic impacter, the isostructural hydraulic impacter of double-acting type hydraulic impacter.
Claims (6)
1. combine a hollow downhole motor wire line coring drilling apparatus, it is characterized in that, described combination hollow downhole motor wire line coring drilling apparatus is made up of outer assembly and interior assembly (3); Described outer assembly comprises hydraulic rotary motor (2), hangs outer tube (4), hydraulic impacter (5) and drill bit (6), outer assembly upper end is assembled by borehole wire-line coring drilling rod joint (1) and drilling rod, described hydraulic rotary motor (2), suspension outer tube (4), hydraulic impacter (5) are hollow structure, be sequentially connected in series from top to bottom, form wire line coring passage by the hollow structure of hydraulic rotary motor (2), suspension outer tube (4), hydraulic impacter (5), described drill bit (6) is arranged on the lower end of hydraulic impacter (5); Described interior assembly (3) is sleeved in the wire line coring passage of outer assembly.
2. combination hollow downhole motor wire line coring drilling apparatus according to claim 1, it is characterized in that, by described hydraulic rotary motor (2), hang outer tube (4), hydraulic impacter (5) hollow structure formed wire line coring passage can for interior assembly (3) down through.
3. combination hollow downhole motor wire line coring drilling apparatus according to claim 2, it is characterized in that, when drilling apparatus is in and normally creeps into the course of work, interior assembly (3) locates locking by suspension outer tube (4), and by the wire line coring passage plugging of outer assembly, when drilling apparatus is in core work process, interior assembly (3) removes lockup state, moves up and down under fishing device controls along wire line coring passage.
4. the combination hollow downhole motor wire line coring drilling apparatus according to claim 1 or 2 or 3, it is characterized in that, described hydraulic rotary motor (2) is turbine motor or screw motor; The rotor (2-3) of described hydraulic rotary motor (2) is hollow structure, and described rotor (2-3) is connected with suspension outer tube (4) by motor lower contact (2-5); Described motor lower contact (2-5) is hollow circuit cylinder body structure, and its sidewall circumferentially evenly arranges one group of drilling well working solution first flowing hole (2-5-1).
5. combination hollow downhole motor wire line coring drilling apparatus according to claim 4, it is characterized in that, the suspended tubes (4-1) of described suspension outer tube (4) is hollow circuit cylinder body structure, its upper end is connected with motor lower contact (2-5), wall is arranged the bullet card chamber (4-1-2) coordinated with interior assembly within it, circumferentially evenly arrange one group of drilling well working solution second flowing hole (4-1-1) at its sidewall, described drilling well working solution second flowing hole (4-1-1) is communicated with drilling well working solution first flowing hole (2-5-1) of motor lower contact (2-5).
6. combination hollow downhole motor wire line coring drilling apparatus according to claim 5, it is characterized in that, described hydraulic impacter (5) upper end is connected with suspension outer tube (4) by tube connector (5-1), and described tube connector (5-1) sidewall circumferentially evenly arranges one group of drilling well working solution the 3rd flowing hole (5-1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804609.9A CN105421995B (en) | 2015-11-20 | 2015-11-20 | A kind of hollow downhole motor wire line coring drilling apparatus of combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510804609.9A CN105421995B (en) | 2015-11-20 | 2015-11-20 | A kind of hollow downhole motor wire line coring drilling apparatus of combination |
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| CN105421995A true CN105421995A (en) | 2016-03-23 |
| CN105421995B CN105421995B (en) | 2018-06-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909202A (en) * | 2016-07-05 | 2016-08-31 | 中交第四航务工程勘察设计院有限公司 | Coring drilling tool based on hydraulic clamping coring |
| CN107882525A (en) * | 2017-12-13 | 2018-04-06 | 中国地质科学院勘探技术研究所 | A kind of rope salvaging type torsional pulse core drill |
| CN110984878A (en) * | 2019-11-08 | 2020-04-10 | 长江岩土工程总公司（武汉） | Rope coring drilling device for urban deep-buried tunnel exploration hole |
| CN112324336A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
| CN112324335A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope core-taking turbine drilling tool for geological exploration of horizontal directional drilling engineering |
| CN114382432A (en) * | 2022-01-14 | 2022-04-22 | 中国地质科学院勘探技术研究所 | Hollow screw drilling tool assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107882525A (en) * | 2017-12-13 | 2018-04-06 | 中国地质科学院勘探技术研究所 | A kind of rope salvaging type torsional pulse core drill |
| CN110984878A (en) * | 2019-11-08 | 2020-04-10 | 长江岩土工程总公司（武汉） | Rope coring drilling device for urban deep-buried tunnel exploration hole |
| CN110984878B (en) * | 2019-11-08 | 2021-09-10 | 长江岩土工程有限公司 | Rope coring drilling device for urban deep-buried tunnel exploration hole |
| CN112324336A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
| CN112324335A (en) * | 2020-10-30 | 2021-02-05 | 中国地质大学（武汉） | Rope core-taking turbine drilling tool for geological exploration of horizontal directional drilling engineering |
| CN112324336B (en) * | 2020-10-30 | 2021-09-07 | 中国地质大学（武汉） | Rope coring screw drill for geological exploration of horizontal directional drilling engineering |
| CN114382432A (en) * | 2022-01-14 | 2022-04-22 | 中国地质科学院勘探技术研究所 | Hollow screw drilling tool assembly |
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| CN105421995B (en) | 2018-06-22 |
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Address after: 065000 Langfang golden city of Hebei province Guangyang District Road No. 77 Co-patentee after: Langfang Juli Exploration Technology Co., Ltd Patentee after: INSTITUTE OF EXPLORATION TECHNIQUE, CHINESE ACADEMY OF GEOLOGICAL SCIENCES Address before: 065000 Langfang golden city of Hebei province Guangyang District Road No. 77 Co-patentee before: JULI GEO-ENGINEERING TECHNICAL DEVELOPMENT COMPANY (LANGFANG) Patentee before: INSTITUTE OF EXPLORATION TECHNIQUE, CHINESE ACADEMY OF GEOLOGICAL SCIENCES |