CN104712275A - Protective wall expansion conical head of geological drilling corrugated expansion pipe - Google Patents
Protective wall expansion conical head of geological drilling corrugated expansion pipe Download PDFInfo
- Publication number
- CN104712275A CN104712275A CN201410774325.5A CN201410774325A CN104712275A CN 104712275 A CN104712275 A CN 104712275A CN 201410774325 A CN201410774325 A CN 201410774325A CN 104712275 A CN104712275 A CN 104712275A
- Authority
- CN
- China
- Prior art keywords
- slide mass
- guide holder
- expansion
- retaining wall
- geological drilling
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 65
- 230000001681 protective effect Effects 0.000 title abstract 3
- 241001149930 Protura <class> Species 0.000 claims description 41
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Abstract
The invention discloses a protective wall expansion conical head of a geological drilling corrugated expansion pipe and belongs to the technical field of drilling equipment for soil layers or rock. The conical head comprises a drill pipe connector, a sliding body guiding base, a sliding body assembly and a hydraulic cylinder assembly, wherein the upper end of the drill pipe connector and a drill pipe are fixedly assembled, and the lower end of the drill pipe connector and the upper end of the sliding body guiding base are fixedly assembled; the lower end of the sliding body guiding base and the hydraulic cylinder assembly are fixedly assembled, the middle of the sliding body guiding base is of a conical platform structure, and a set of sliding tables matched with the sliding body assembly are arranged on the outer conical face of the sliding body guiding base; the sliding body assembly is composes of a set of sliding blocks which are evenly arranged in the peripheral direction of the outer conical face of the sliding body guiding base, the sliding blocks and the hydraulic cylinder assembly are fixedly assembled through screws, the sliding blocks move upwards along the sliding tables on the outer conical face of the sliding body guiding base under the driving of the hydraulic cylinder assembly, and the diameter of the outer cylindrical face of a sliding body is made to be increased. The universal performance of a protective wall of the expansion pipe is improved, and the problem that in the drilling and punching process of a complicated stratum, an expansion pipe matched with the hole diameter of a drilled hole cannot be found easily is solved.
Description
Technical field
The present invention relates to a kind of geological drilling corrugated expansion pipe retaining wall bloat tool, especially a kind of reducing geological drilling corrugated expansion pipe retaining wall expansion conehead of hydraulic control, belongs to the drilling equipment technical field of soil layer or rock.
Background technology
In geological drilling construction process, borehole wall-protection is one of technological means solving a complex stratigraphic drilling difficult problem, and borehole wall-protection technology mainly adopts cement rendering dado and sleeve pipe retaining wall two kinds of forms.Wherein cement rendering dado is longer for duty cycle, affects drilling progress; And ordinary casing retaining wall need reserve multilayer sleeve when hole body designs, there is aperture and reduce large problem, therefore both having extended the drilling cycle turn increases drilling cost, particularly when complex stratigraphic drilling punches, the restriction of the factors such as core diameter is got by sleeve pipe sum of series, cause being difficult to find the sleeve pipe matched with boring aperture, have impact on whole hole quality.
Summary of the invention
The object of the invention is to the drawback for prior art, there is provided a kind of to be driven by hydraulic system, expansion conehead diameter consecutive variations can be realized, make corrugated expansion pipe retaining wall expanded diameter be not less than the geological drilling corrugated expansion pipe retaining wall expansion conehead of former bore diameter.
Problem of the present invention is solved by following technical proposals:
A kind of geological drilling corrugated expansion pipe retaining wall expansion conehead, comprises tool joint, slide mass guide holder, slide mass assembly and hydraulic pressure cylinder assembly; Described tool joint upper end and drilling rod are fixed and are assembled, and lower end and slide mass guide holder upper end are fixed and assembled; Described slide mass guide holder lower end and hydraulic pressure cylinder assembly are fixing to be assembled, and the middle part of slide mass guide holder is the frustum structure that upper end diameter is large, lower end diameter is little, its outer conical surface is arranged one group with the slide unit of slide mass component matching; Described slide mass assembly is made up of the sliding shoe that a group is evenly arranged along slide mass guide holder outer conical surface circumference, described sliding shoe is fixed by screw and hydraulic pressure cylinder assembly and is assembled, sliding shoe moves up along the slide unit in slide mass guide holder outer conical surface under hydraulic pressure cylinder assembly drives, and slide mass external cylindrical surface diameter is increased.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, the slide unit in described slide mass guide holder outer conical surface is dove-tail form slide unit, and dove-tail form slide unit is provided with the elongated through-holes groove with screw mates.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, described sliding shoe inside wall is the part pyramid like configuration mated with slide mass guide holder outer conical surface, sliding shoe inside wall is provided with dove-tail form chute, described dove-tail form chute mates with dove-tail form slide unit in slide mass guide holder outer conical surface, described sliding shoe lateral wall the first half is the face of cylinder, the latter half is the taper seat that upper end diameter is large, lower end diameter is little, and the described face of cylinder is provided with bolt fitting holes.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, described tool joint and slide mass guide holder are provided with mutually through cylindrical cavity, in described cylindrical cavity, flexible pipe is set, described flexible pipe upper end is provided with hose coupling, described hose coupling is sleeved in the cavity of tool joint upper end, and fixed by stop nut, hose coupling is provided with the liquid communication upper channel with soft pipe connection.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, described hose coupling is provided with one group of tube connector joint sealing ring fitted tightly with tool joint inwall static state.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, described hydraulic pressure cylinder assembly is made up of cylinder body and piston rod; Described cylinder body upper end and slide mass guide holder are fixed and are assembled, and lower end is provided with plug; Described piston rod is placed in inner chamber of cylinder block, portion is provided with the discoid boss for fixing slide mass on the piston rod, described boss be provided with one group with the screwed hole of sliding shoe quantity Matching, piston rod axis direction is provided with the liquid communication lower passage with soft pipe connection.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, described piston-rod lower end is provided with one group of piston rod packing ring dynamically fitted tightly with inboard wall of cylinder block.
Above-mentioned geological drilling corrugated expansion pipe retaining wall expansion conehead, in described tool joint and the mutually through cylindrical cavity of slide mass guide holder, be provided with back-moving spring, described back-moving spring is sleeved on the outside of flexible pipe, is installed between hose coupling and piston rod boss.
The middle part of slide mass guide holder is designed to the frustum structure that upper end diameter is large, lower end diameter is little by geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention, and arrange in its outer conical surface one group with the slide unit of slide mass component matching, when in hydraulic pressure cylinder assembly, piston rod moves under driving slide mass assembly from bottom to top, in slide mass assembly, on sliding shoe inside wall, dove-tail form chute slides on the dove-tail form slide unit of slide mass guide holder outer conical surface, the slide mass top external cylindrical surface diameter be made up of sliding shoe is increased, expansion tube retaining wall is strutted.Because the sliding shoe of geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is along in the dove-tail form slide unit sliding process of slide mass guide holder outer conical surface, the slide mass top external cylindrical surface diameter be made up of sliding shoe increases continuously, therefore the hole wall can holed with different-diameter after making expansion tube retaining wall expand mates, improve the universal performance of expansion tube retaining wall, be difficult to find the problem of mating sleeve pipe with boring aperture when solving complex stratigraphic drilling punching, reach the object preventing borehole collapse, undergauge, ensure that boring whole hole quality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is geological drilling corrugated expansion pipe retaining wall expansion cone header structure schematic diagram of the present invention;
Fig. 2 is A-A cross-sectional view in Fig. 1;
Fig. 3 is B-B cross-sectional view in Fig. 1;
Fig. 4 is slide mass guide seat structure schematic diagram in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention;
Fig. 5 is C-C cross-sectional view in Fig. 4;
Fig. 6 is D-D cross-sectional view in Fig. 4;
Fig. 7 is sliding shoe structural representation in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention;
Fig. 8 is E-E cross-sectional view in Fig. 7;
Fig. 9 is F-F cross-sectional view in Fig. 7;
Figure 10 is the main sectional view of piston rod in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention;
Figure 11 is the main sectional view of hose coupling in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention;
Figure 12 is geological drilling corrugated expansion pipe retaining wall expansion conehead operating principle schematic diagram of the present invention;
Figure 13 is geological drilling corrugated expansion pipe retaining wall expansion conehead course of work schematic diagram of the present invention.
In figure, each list of reference numerals is: 1, stop nut, 2, tool joint, 3, slide mass guide holder, 3-1, dove-tail form slide unit, 3-2, elongated through-holes groove, 4, sliding shoe, 4-1, bolt fitting holes, 4-2, dove-tail form chute, 5, cylinder body, 6, plug, 7, piston rod, 7-1, boss, 7-2, screwed hole, 7-3, liquid communication lower passage, 7-4, piston rod packing ring, 8, screw, 9, flexible pipe, 10, back-moving spring, 11, hose coupling, 11-1, liquid communication upper channel, 11-2, hose coupling joint ring.
Detailed description of the invention
Referring to Fig. 1, Fig. 2 and Fig. 3, geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention comprises tool joint 2, slide mass guide holder 3, slide mass assembly and hydraulic pressure cylinder assembly; Described tool joint 2 upper end and drilling rod are fixed and are assembled, and lower end and slide mass guide holder 3 upper end are fixed and assembled; Described slide mass guide holder 3 lower end and hydraulic pressure cylinder assembly are fixing to be assembled, and the middle part of slide mass guide holder is the frustum structure that upper end diameter is large, lower end diameter is little, its outer conical surface is arranged one group with the slide unit of slide mass component matching; Described slide mass assembly is made up of the sliding shoe 4 that a group is evenly arranged along slide mass guide holder 3 outer conical surface circumference, described sliding shoe 4 assembles by screw 8 and hydraulic pressure cylinder assembly are fixing, sliding shoe 4 moves up along the slide unit in slide mass guide holder outer conical surface under hydraulic pressure cylinder assembly drives, and slide mass external cylindrical surface diameter is increased.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, slide unit in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention in slide mass guide holder 3 outer conical surface is dove-tail form slide unit 3-1, and dove-tail form slide unit 3-1 is provided with the elongated through-holes groove 3-2 with screw mates.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 7, Fig. 8 and Fig. 9, in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention, the inside wall of sliding shoe 4 is the part pyramid like configuration mated with slide mass guide holder outer conical surface, the inside wall of sliding shoe 4 is provided with dove-tail form chute 4-2, described dove-tail form chute 4-2 mates with dove-tail form slide unit 3-1 in slide mass guide holder outer conical surface, described sliding shoe 4 lateral wall the first half is the face of cylinder, the latter half is the taper seat that upper end diameter is large, lower end diameter is little, and the described face of cylinder is provided with bolt fitting holes 4-1.
Referring to Fig. 1, Fig. 2, Fig. 3 and Figure 11, in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention, tool joint 2 and slide mass guide holder 3 are provided with mutually through cylindrical cavity, flexible pipe 9 is set in described cylindrical cavity, described flexible pipe 9 upper end is provided with hose coupling 11, described hose coupling 11 is sleeved in the cavity of tool joint 2 upper end, and fixed by stop nut 1, hose coupling 11 is provided with the liquid communication upper channel 11-1 be communicated with flexible pipe 9, hose coupling 11 is also provided with one group of tube connector joint sealing ring 11-2 fitted tightly with tool joint inwall static state.
Referring to Fig. 1, Fig. 2, Fig. 3 and Figure 10, in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention, hydraulic pressure cylinder assembly is made up of cylinder body 5 and piston rod 7; Described cylinder body 5 upper end and slide mass guide holder 3 are fixed and are assembled, and lower end is provided with plug 6; Described piston rod 7 is placed in cylinder body 5 inner chamber, the discoid boss 7-1 for fixing slide mass is provided with on piston rod 7 top, described boss 7-1 be provided with one group with the screwed hole 7-2 of sliding shoe quantity Matching, piston rod 7 axis direction is provided with the liquid communication lower passage 7-3 be communicated with flexible pipe 9, is also provided with one group of piston rod packing ring 7-4 dynamically fitted tightly with inboard wall of cylinder block in piston rod 7 lower end.
Referring to Fig. 2, in geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention, back-moving spring 10 is provided with in the cylindrical cavity that described tool joint 2 is mutually through with slide mass guide holder 3, described back-moving spring 10 is sleeved on the outside of flexible pipe 9, between the boss 7-1 being installed on hose coupling 11 and piston rod 7.
Referring to Figure 12, Figure 13, the operating principle of geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is: tool joint 2 upper end is connected with drilling rod, drilling rod pressurizes downwards, simultaneously to pumping liquid in drilling rod, liquid is by liquid communication upper channel 11-1 in hose coupling 11, in flexible pipe 9 and piston rod 7, liquid communication lower passage 7-3 enters and is formed in annular seal space between piston rod 7 lower surface and plug 6 upper surface, along with in annular seal space, fluid pressure increases gradually, promote piston rod 7 to move up, back-moving spring 10 is compressed, sliding shoe 4 moves up along the dove-tail form slide unit 3-1 in slide mass guide holder 3 outer conical surface simultaneously, the slide mass top external cylindrical surface diameter be made up of sliding shoe 4 is increased (as shown in Figure 13, slide mass top external cylindrical surface diameter is increased to φ 2 by φ 1), expansion tube retaining wall struts by slide mass top external cylindrical surface.Because the sliding shoe 4 of geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is along in the dove-tail form slide unit 3-1 sliding process of slide mass guide holder outer conical surface, the slide mass top external cylindrical surface diameter be made up of sliding shoe 4 increases continuously, and the hole wall can holed with different-diameter after therefore making expansion tube retaining wall expand mates.
Referring to Figure 12, Figure 13, a specific embodiment of geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is that corrugated expansion pipe retaining wall adopts slot expansion tube, in such cases, slot expansion tube to be expanded is connected by pin with the conical surface of movable block 4, slot expansion tube being put into boring front to needing retaining wall section to carry out reaming, then by drilling rod, slot expansion tube being transferred to precalculated position; Drilling rod pressurizes downwards, cuts off the pin connecting slot expansion tube and sliding shoe 4; Pumping liquid in drilling rod, under fluid pressure effect, piston rod 7 drives sliding shoe 4 to move up along the dove-tail form slide unit 3-1 in slide mass guide holder 3 outer conical surface; While making sliding shoe 4 moves to expansion conehead internal pressurization, make it move down to drilling rod rotary presser, when sliding shoe 4 arrives upper limit position, the slide mass top external cylindrical surface diameter be made up of sliding shoe 4 increases to and is more than or equal to retaining wall section aperture size; Drilling rod continues rotation and moves down, until the complete expansion of whole slot expansion tube is to setting size; Stop to pumping liquid in drilling rod, piston rod 7 and sliding shoe 4 slide to initial position down gradually under the effect of back-moving spring 10, on carry drilling rod geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is carried to boring outside, corrugated expansion pipe retaining wall expansion work is complete, now slot expansion tube internal diameter is more than or equal to bore diameter, makes slot expansion tube fit tightly on the inwall of boring.
Referring to Figure 12, Figure 13, the other embodiment of geological drilling corrugated expansion pipe retaining wall expansion conehead of the present invention is the employing of corrugated expansion pipe retaining wall is solid expansion pipe or entity corrugated expansion pipe, need in such cases in advance solid expansion pipe or entity corrugated expansion pipe to be carried out hydraulic pressure pwc expansion, when the internal diameter of solid expansion pipe or entity corrugated expansion pipe being expanded to close to or being greater than the diameter of lower hand-hole, under enter corrugated expansion pipe retaining wall expansion conehead of the present invention, carry out the expansion process of above-mentioned slot expansion tube equally, solid expansion pipe or entity corrugated expansion pipe internal diameter are tested and advised circle, solid expansion pipe or entity corrugated expansion pipe internal diameter is made to be more than or equal to foramen primum diameter.
Claims (8)
1. a geological drilling corrugated expansion pipe retaining wall expansion conehead, is characterized in that, it comprises tool joint (2), slide mass guide holder (3), slide mass assembly and hydraulic pressure cylinder assembly; Described tool joint (2) upper end and drilling rod are fixed and are assembled, and lower end and slide mass guide holder (3) upper end are fixed and assembled; Described slide mass guide holder (3) lower end and hydraulic pressure cylinder assembly are fixing to be assembled, and the middle part of slide mass guide holder is the frustum structure that upper end diameter is large, lower end diameter is little, its outer conical surface is arranged one group with the slide unit of slide mass component matching; Described slide mass assembly is made up of the sliding shoe (4) that a group is evenly arranged along slide mass guide holder (3) outer conical surface circumference, described sliding shoe (4) assembles by screw (8) and hydraulic pressure cylinder assembly are fixing, sliding shoe (4) moves up along the slide unit in slide mass guide holder outer conical surface under hydraulic pressure cylinder assembly drives, and slide mass external cylindrical surface diameter is increased.
2. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 1, it is characterized in that, slide unit in described slide mass guide holder (3) outer conical surface is dove-tail form slide unit (3-1), and dove-tail form slide unit (3-1) is provided with the elongated through-holes groove (3-2) with screw mates.
3. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 2, it is characterized in that, the inside wall of described sliding shoe (4) is the part pyramid like configuration mated with slide mass guide holder outer conical surface, the inside wall of sliding shoe (4) is provided with dove-tail form chute (4-2), described dove-tail form chute (4-2) is mated with dove-tail form slide unit (3-1) in slide mass guide holder outer conical surface, described sliding shoe (4) lateral wall the first half is the face of cylinder, the latter half is that upper end diameter is large, the taper seat that lower end diameter is little, the described face of cylinder is provided with bolt fitting holes (4-1).
4. the geological drilling corrugated expansion pipe retaining wall expansion conehead according to any one of claims 1 to 3, it is characterized in that, described tool joint (2) and slide mass guide holder (3) are provided with mutually through cylindrical cavity, flexible pipe (9) is set in described cylindrical cavity, described flexible pipe (9) upper end is provided with hose coupling (11), described hose coupling (11) is sleeved in the cavity of tool joint (2) upper end, and fixed by stop nut (1), hose coupling (11) is provided with the liquid communication upper channel (11-1) be communicated with flexible pipe (9).
5. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 4, is characterized in that, described hose coupling (11) is provided with one group of tube connector joint sealing ring (11-2) fitted tightly with tool joint inwall static state.
6. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 5, it is characterized in that, described hydraulic pressure cylinder assembly is made up of cylinder body (5) and piston rod (7); Described cylinder body (5) upper end and slide mass guide holder (3) are fixed and are assembled, and lower end is provided with plug (6); Described piston rod (7) is placed in cylinder body (5) inner chamber, the discoid boss (7-1) for fixing slide mass is provided with on piston rod (7) top, described boss (7-1) be provided with one group with the screwed hole (7-2) of sliding shoe quantity Matching, piston rod (7) axis direction is provided with the liquid communication lower passage (7-3) be communicated with flexible pipe (9).
7. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 6, is characterized in that, described piston rod (7) lower end is provided with one group of piston rod packing ring (7-4) dynamically fitted tightly with inboard wall of cylinder block.
8. geological drilling corrugated expansion pipe retaining wall expansion conehead according to claim 7, it is characterized in that, back-moving spring (10) is provided with in the cylindrical cavity that described tool joint (2) and slide mass guide holder (3) are mutually through, described back-moving spring (10) is sleeved on the outside of flexible pipe (9), between the boss (7-1) being installed on hose coupling (11) and piston rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774325.5A CN104712275B (en) | 2014-12-16 | 2014-12-16 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774325.5A CN104712275B (en) | 2014-12-16 | 2014-12-16 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712275A true CN104712275A (en) | 2015-06-17 |
| CN104712275B CN104712275B (en) | 2017-05-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410774325.5A Expired - Fee Related CN104712275B (en) | 2014-12-16 | 2014-12-16 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712275B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736733A (en) * | 2019-02-01 | 2019-05-10 | 中国地质科学院勘探技术研究所 | A kind of expansion tube tripping in device |
| CN110029955A (en) * | 2019-04-28 | 2019-07-19 | 河北工业大学 | Reducing type expansion-head and expansion tube swelling operation expansion device |
| CN113090191A (en) * | 2021-04-12 | 2021-07-09 | 中煤科工集团重庆研究院有限公司 | Drilling fixed-point hole protection method, device and construction process for complex zone of coal mine |
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| US20060175055A1 (en) * | 2003-06-30 | 2006-08-10 | Otkrytoe Aktsionernoe Obschestvo "Tatneft" Im. V. D. Shashina | Device for installation of a profile liner in a well |
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| CN204476331U (en) * | 2014-12-16 | 2015-07-15 | 中国地质科学院勘探技术研究所 | A kind of geological drilling corrugated expansion pipe retaining wall bloat tool |
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| US20060175055A1 (en) * | 2003-06-30 | 2006-08-10 | Otkrytoe Aktsionernoe Obschestvo "Tatneft" Im. V. D. Shashina | Device for installation of a profile liner in a well |
| CN201460784U (en) * | 2009-08-07 | 2010-05-12 | 中国石油天然气股份有限公司 | Hydraulic reducing expansion tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110029955A (en) * | 2019-04-28 | 2019-07-19 | 河北工业大学 | Reducing type expansion-head and expansion tube swelling operation expansion device |
| CN113090191A (en) * | 2021-04-12 | 2021-07-09 | 中煤科工集团重庆研究院有限公司 | Drilling fixed-point hole protection method, device and construction process for complex zone of coal mine |
| CN113090191B (en) * | 2021-04-12 | 2022-07-22 | 中煤科工集团重庆研究院有限公司 | Drilling fixed-point hole protecting method, device and construction process for complex zone of coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104712275B (en) | 2017-05-24 |
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