CN108442890A - Deslagging drilling rod in a kind of axial notch guard aperture release - Google Patents
Deslagging drilling rod in a kind of axial notch guard aperture release Download PDFInfo
- Publication number
- CN108442890A CN108442890A CN201810488838.8A CN201810488838A CN108442890A CN 108442890 A CN108442890 A CN 108442890A CN 201810488838 A CN201810488838 A CN 201810488838A CN 108442890 A CN108442890 A CN 108442890A
- Authority
- CN
- China
- Prior art keywords
- rod
- axial notch
- release
- drilling rod
- guard aperture
- 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 71
- 239000007787 solid Substances 0.000 claims 1
- 239000003818 cinder Substances 0.000 abstract description 15
- 239000003245 coal Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 11
- 239000002893 slag Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses deslagging drilling rods in a kind of axial notch guard aperture release, support element including the hollow body of rod, the beam pipe being co-axially located inside the body of rod, connecting-rod body and beam pipe, it is slagging channel between body of rod inner wall and beam pipe outer wall, it is air inlet, intake tunnel inside beam pipe, the body of rod external cylindrical surface is equipped with the axial notch parallel with its axial direction, and the pressure relief vents of multiple connection body of rod internal cavities are provided in axial notch.When the collapse hole that drills, the cinder around drilling rod enters slagging channel, active force of the release cinder to drilling rod by pressure relief vent, axial notch has the ability for taking off hole simultaneously, periphery cinder is set to be in the state loosely moved, cinder enters slagging channel through pressure relief vent, and then dredges collapse hole area.
Description
Technical field
The invention belongs to coal mine gas extraction drill hole technical fields, more particularly to one kind being suitable for weak seam, prominent coal
Deslagging drilling rod in the axial notch axial notch guard aperture release of layer mash gas pumping drilling drilling.
Background technology
Weak seam and projecting coal bed drilling are difficult in the presence of drilling deslagging, drilling efficiency is low, drilling depth is shallow, one-tenth porosity is low,
The problems such as pore-forming effect is poor directly affects drilling and sealing quality and gas pumping efficiency.
Currently, the country is in terms of soft projecting coal bed drilling, the drilling rod generally used has spiral（Low spiral）Drilling rod and three
Rib drilling rod.Since spiral groove drill pipe diameter is much smaller than bore diameter, drilling rod does not have guard aperture ability, hole wall coal body is caused easily to go out
Existing buckling deformation even collapse hole phenomenon；When Three-edged drill stem is crept into, the rotating diameter and bore diameter of trigone cutting drilling rod are close, but
The area that is in contact with each other is small, and guard aperture ability is weak, and when Three-edged drill stem uses hydraulic slag discharging mode, the effect is unsatisfactory for deslagging.On moreover,
The slagging channel for stating two kinds of drilling rods is respectively positioned between drilling-rod external wall and hole wall, and aperture is shunk or collapse hole is to the shadow in slagging channel section
It rings greatly, bit freezing phenomenon is susceptible in drilling process.
Published Chinese patent invention " for the porous turbulent release drilling tool of cherry coal rock drilling binary channels ", patent publication No.
For：CN203584298U has good effect using the porous turbulent release drilling rod of binary channels in terms of guard aperture and protection slagging channel
Fruit, but drilling rod does not have the ability of cutting hole wall protrusion coal body, bit freezing easily occurs, embraces and bores phenomenon；Release hole number is excessive, drilling rod
Intensity is low, breaking of rod phenomenon easily occurs.
Invention content
In view of the above-mentioned problems, the present invention has two guard aperture ability, release anti-clogging levels around drilling rod, according to major diameter
The principle of resistance and porous slag input release is crept into the coal body reduction of drilling rod guard aperture, axial notch cutting hole wall protrusion, provides one kind
Deslagging drilling rod in the axial notch axial notch guard aperture release that pore-forming effect is good, drilling efficiency is high, drilling depth is deep.
In order to achieve the above objectives, using following technical scheme.
Deslagging drilling rod in a kind of axial notch guard aperture release, including the hollow body of rod, the note that is co-axially located inside the body of rod
The support element of flow tube, connecting-rod body and beam pipe is slagging channel between body of rod inner wall and beam pipe outer wall, is inside beam pipe
Air inlet, intake tunnel, the body of rod external cylindrical surface is equipped with is equipped with one with its axial parallel axial notch, the body of rod
Or a plurality of axial notch.The pressure relief vent of multiple connection body of rod internal cavities is provided in axial notch.Pressure relief vent makes the outer of drilling rod
Portion and slagging channel unicom.
To improve the service life and chip effect of drilling rod, wear-resistant processing can be carried out in drilling rod appearance；For raising and drill bit
The deslagging ability of first connected drilling rod, the setting pressure relief vent as much as possible in the axial notch of first drilling rod.
The external cylindrical surface of the body of rod one end is equipped with external screw thread, and the inner cylinder face of the other end is equipped with internal thread,
The external screw thread can cooperate with internal thread.
The body of rod, beam pipe, support element are complete to be provided between multiple, adjacent bodies of rod by by internal thread and outside
Screw-thread fit carries out screwed connection, is connected by plug-in unit between adjacent beam pipe.
The cross-sectional shape of the axial notch is arc-shaped, rectangle, trapezoidal, and in axial notch and body of rod external cylindrical surface
Excessively place's setting chamfering.
The shape of the pressure relief vent is round hole, strip-shaped hole.
Single or double pressure relief vent is equipped in every axial notch.
The support element includes fixed ring and supporting leg, and the Fixing shrink ring is on the outside of beam pipe and is secured to connect, institute
It states supporting leg one end to be fixedly connected with fixed ring, the other end extends radially outwardly to the body of rod along fixed ring and is fixedly connected with the body of rod.
When weak seam is crept into, hole wall coal body easily occur loosely be caving phenomenon, cause Completion of Drilling Hole effect it is poor, creep into imitate
Rate is low.Using the above structure, deslagging fluid enters foot of hole by air inlet, intake tunnel, carries cinder and passes through body of rod inner wall
It is discharged and drills with the slagging channel that beam pipe outer wall is formed.According to the principle of major diameter drilling rod guard aperture and porous slag input release, bore
When bar high speed rotation, the contact surface of drill outer wall and hole wall is big, and drilling rod provides hole wall certain support force, keeps hole wall loose
Coal body is not easy to be caving, and plays the role of guard aperture, while slagging channel is located inside drilling rod, is protected by drilling-rod external wall, avoids creeping into
It blocks in the process.Secondly, axial notch can cut the coal body loosely protruded, reduce drilling resistance.In addition, drilling collapse hole
When, cinder around drilling rod enters slagging channel by pressure relief vent, and release cinder is to the active force of drilling rod, while axial notch has
There is the ability for taking off hole, so that periphery cinder is in the state loosely moved, cinder enters slagging channel through pressure relief vent, and then dredges and collapse
Porose area.
The beneficial effects of the present invention are：1. axial notch has the work that cutting hole wall protrusion coal body reduces drilling resistance
With solving the more turbulent release drilling rods of binary channels and not having cutting hole wall protrusion coal body leads to rod boring resistance great Yi bit freezings
Problem；2. pressure relief vent is in equidistant placement, influence of the pressure relief vent to drilling rod intensity can be reduced.It is tested through field test：The present invention
The ability for having outstanding cutting hole wall protrusion cinder of deslagging drilling rod in axial notch guard aperture release, rotational resistance significantly under
The intensity of drop, the more turbulent release drilling rods of the binary channels that compares improves 30% or more, at the same have with coal wall come into contact in a large area guard aperture,
Anti-clogging built in slagging channel, pressure relief vent slag input release preventing sticking advantage；3. entering the coal of slagging channel by axial notch
Slag is integrally of a straight line type, therefore deslagging is more unobstructed, is more not easy to block；4. it is strong to scrape slag ability for linear axial notch simultaneously
In spiral type groove, it is adapted to the harder drilling of coal quality.
Description of the drawings
Fig. 1 is the front view of embodiment 1；
Fig. 2 is the longitudinal sectional drawing of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the front view of embodiment 2；
Fig. 5 is the longitudinal sectional view of Fig. 4.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
It please refers to Fig.1.Structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification
Revealed content is not limited to the enforceable restriction item of the present invention so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, should all still fall can cover in disclosed technology contents
In the range of.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated for ease of narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1 and Figure 2, embodiment 1 is deslagging drilling rod in a kind of axial notch guard aperture release, including the hollow body of rod
7, the support element 4 of beam pipe 3 inside the body of rod 7, connecting-rod body 7 and beam pipe 3,7 inner wall of the body of rod and beam pipe 3 are co-axially located at
It is slagging channel 6 between outer wall, 3 inside of beam pipe is air inlet, intake tunnel 5, and 7 external cylindrical surface of the body of rod is equipped with an axis
To groove 1, the pressure relief vent 2 of multiple connection slagging channels 6 is provided in axial notch 1.
To improve the deslagging ability for first drilling rod being connected with drill bit, to the greatest extent may be used in the axial notch 1 of first drilling rod
Setting pressure relief vent 2 more than energy can carry out wear-resistant processing to improve the service life and chip effect of drilling rod in drilling rod appearance.
The external cylindrical surface of 7 one end of the body of rod is equipped with external screw thread 8, and the inner cylinder face of the other end is equipped with internal thread
9, the external screw thread 8 can cooperate with internal thread 9.
The body of rod 7, beam pipe 3, support element 4 are complete to be provided between multiple, adjacent bodies of rod 7 by passing through internal thread
9 and the cooperation of external screw thread 8 carry out screwed connection, connected by plug-in unit 10 between adjacent beam pipe 3.
The cross-sectional shape of the axial notch 1 is arc-shaped, rectangle, trapezoidal, and in axial notch 1 and 7 outer circle of the body of rod
Cylinder excessively locates that chamfering is arranged.
The shape of the pressure relief vent 2 is round hole, strip-shaped hole.
Row's pressure relief vent is equipped in every axial notch 1.
As shown in figure 3, the support element 4 includes fixed ring 41 and supporting leg 42, the fixed ring 41 is sleeved on 3 outside of beam pipe
And be secured to connect, 42 one end of the supporting leg is fixedly connected with fixed ring 41, and the other end extends radially outwardly along fixed ring 41
It is fixedly connected to the body of rod 7 and with the body of rod 7.
As shown in Figure 4, Figure 5, difference lies in be equipped with double pressure relief vent to embodiment 2 with the implementation of embodiment 1 in axial notch
2.Meanwhile it can also be set as that one single and one double in two adjacent axial notches.
When weak seam is crept into, hole wall coal body easily occur loosely be caving phenomenon, cause Completion of Drilling Hole effect it is poor, creep into imitate
Rate is low.Using the above structure, deslagging fluid enters foot of hole by air inlet, intake tunnel 5, carries cinder and passes through in the body of rod 7
The discharge of slagging channel 6 that wall is formed with 3 outer wall of beam pipe drills.According to the original of major diameter drilling rod guard aperture and porous slag input release
Reason, when drilling rod high speed rotation, the contact surface of drill outer wall and hole wall is big, and the body of rod provides hole wall certain support force, makes hole wall
Loose coal body is not easy to be caving, and plays the role of guard aperture, while slagging channel 6 is located inside drilling rod, is protected, is kept away by drilling-rod external wall
Exempt to block in drilling process.Secondly, axial notch 1 can cut the coal body loosely protruded, reduce drilling resistance.In addition, boring
When the collapse hole of hole, the cinder around the body of rod 7 enters slagging channel 6 by pressure relief vent 2, discharges active force of the cinder to drilling rod, simultaneously
Axial notch 1 has the ability for taking off hole, and periphery cinder is made to be in the state loosely moved, and cinder enters deslagging through pressure relief vent 2 and leads to
Road 6, and then dredge collapse hole area.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. deslagging drilling rod in a kind of axial notch guard aperture release, it is characterised in that：Including the hollow body of rod, it is co-axially located at the body of rod
The support element of internal beam pipe, connecting-rod body and beam pipe is slagging channel, beam between body of rod inner wall and beam pipe outer wall
Be air inlet, intake tunnel inside pipe, the body of rod external cylindrical surface be equipped with its axial parallel axial notch, in axial notch
It is provided with the pressure relief vent of multiple connection body of rod internal cavities.
2. deslagging drilling rod in the release of axial notch guard aperture according to claim 1, it is characterised in that：The body of rod one end
External cylindrical surface is equipped with external screw thread, and the inner cylinder face of the other end is equipped with internal thread, and the external screw thread can be mutual with internal thread
Cooperation.
3. deslagging drilling rod in the release of axial notch guard aperture according to claim 2, it is characterised in that：The body of rod, beam pipe,
Support element is complete to be provided between multiple, adjacent bodies of rod by carrying out screwed connection, phase by internal thread and external screw thread cooperation
It is connected by plug-in unit between adjacent beam pipe.
4. deslagging drilling rod in the release of axial notch guard aperture according to claim 1, it is characterised in that：The cross of the axial notch
Cross sectional shape is arc-shaped, rectangle, trapezoidal, and excessively locate setting chamfering in axial notch and body of rod external cylindrical surface.
5. deslagging drilling rod in the release of axial notch guard aperture according to claim 1, it is characterised in that：The shape of the pressure relief vent
It is round hole, strip-shaped hole.
6. deslagging drilling rod in the release of axial notch guard aperture according to claim 1, it is characterised in that：The body of rod is equipped with more
Axial notch.
7. deslagging drilling rod in the release of axial notch guard aperture according to claim 6, it is characterised in that：Every axial notch
It is interior to be equipped with single or double pressure relief vent.
8. deslagging drilling rod in the release of axial notch guard aperture according to claim 1, it is characterised in that：The support element includes solid
Determine ring and supporting leg, the Fixing shrink ring is on the outside of beam pipe and is secured to connect, and described supporting leg one end is fixed with fixed ring to be connected
It connects, the other end extends radially outwardly to the body of rod along fixed ring and is fixedly connected with the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488838.8A CN108442890B (en) | 2018-05-21 | 2018-05-21 | Sediment drilling rod is arranged in release of axial recess pilot hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488838.8A CN108442890B (en) | 2018-05-21 | 2018-05-21 | Sediment drilling rod is arranged in release of axial recess pilot hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108442890A true CN108442890A (en) | 2018-08-24 |
| CN108442890B CN108442890B (en) | 2020-04-07 |
Family
ID=63204341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488838.8A Active CN108442890B (en) | 2018-05-21 | 2018-05-21 | Sediment drilling rod is arranged in release of axial recess pilot hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442890B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151206A1 (en) * | 2019-01-25 | 2020-07-30 | 安徽理工大学 | Flow guide drill pipe |
| CN111894477A (en) * | 2020-07-08 | 2020-11-06 | 河南理工大学 | Outburst coal seam hole protection and pressure relief combined drilling tool and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705214U (en) * | 2010-03-30 | 2011-01-12 | 河南理工大学 | Multi-arris hot-melt coating wearable drilling rod |
| CN203035104U (en) * | 2013-02-04 | 2013-07-03 | 成都大漠石油机械有限公司 | Oil hollow drill rod |
| CN203584298U (en) * | 2013-11-15 | 2014-05-07 | 河南理工大学 | Soft coal rock drilling dual-channel porous turbulent pressure relief drill |
| CN104314482A (en) * | 2014-10-23 | 2015-01-28 | 河南理工大学 | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed |
| CN104405294A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Petroleum hollow drill rod convenient for scrap guide |
-
2018
- 2018-05-21 CN CN201810488838.8A patent/CN108442890B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705214U (en) * | 2010-03-30 | 2011-01-12 | 河南理工大学 | Multi-arris hot-melt coating wearable drilling rod |
| CN203035104U (en) * | 2013-02-04 | 2013-07-03 | 成都大漠石油机械有限公司 | Oil hollow drill rod |
| CN203584298U (en) * | 2013-11-15 | 2014-05-07 | 河南理工大学 | Soft coal rock drilling dual-channel porous turbulent pressure relief drill |
| CN104314482A (en) * | 2014-10-23 | 2015-01-28 | 河南理工大学 | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed |
| CN104405294A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Petroleum hollow drill rod convenient for scrap guide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151206A1 (en) * | 2019-01-25 | 2020-07-30 | 安徽理工大学 | Flow guide drill pipe |
| CN111894477A (en) * | 2020-07-08 | 2020-11-06 | 河南理工大学 | Outburst coal seam hole protection and pressure relief combined drilling tool and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108442890B (en) | 2020-04-07 |
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