CN106939770A - Coring tube drill bit - Google Patents
Coring tube drill bit Download PDFInfo
- Publication number
- CN106939770A CN106939770A CN201710375008.XA CN201710375008A CN106939770A CN 106939770 A CN106939770 A CN 106939770A CN 201710375008 A CN201710375008 A CN 201710375008A CN 106939770 A CN106939770 A CN 106939770A
- Authority
- CN
- China
- Prior art keywords
- drilling pipe
- chute
- drill bit
- core
- coring tube
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 claims abstract description 66
- 239000011435 rock Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage 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
- E21B10/00—Drill bits
- E21B10/02—Core bits
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to the technical field of drill bit, coring tube drill bit, including drilling pipe and multiple wedge keies for being used to block core are disclosed, drilling pipe has the cavity volume that Open Side Down, and the madial wall of drilling pipe is provided with multiple chutes, and chute is disposed to extend along the axial direction of drilling pipe；Wedge key is arranged in chute, and is slided up and down along chute；Chute forms side opening towards cavity volume；Wedge key drops out the limiting structure of cavity volume provided with the core in limitation cavity volume.By setting multiple chutes in drilling pipe, the wedge key being provided with chute, and do not fall out chute, so, in drill bit drilling process, after core fills drilling bucket, during putting on upwards, core can be tilted to the left or to the right, during inclined core slide downward, its present structure can block core during driving wedge key slide downward, wedge key slide downward, core is not fallen out, and drilling pipe just can propose core outside hole.
Description
Technical field
The present invention relates to the technical field of drill bit, more particularly, to coring tube drill bit.
Background technology
Core is the complete primary data obtained in oil exploration, development process, by sharing to number of core sections
With research, foundation can be provided to formulate reasonable development scheme, accurate CALCULATING OILFIELD storage, formulating well stimulation.
In order to obtain rock core, it is necessary to using rock coring bit.At present, rock coring bit is essentially two kinds, Yi Zhongwei
Double-deck core drill head tube, complex manufacturing technology, cost is higher, and another is circlip type coring bit, is set in the inwall of the drill bit
Install and be equipped with jump ring, extracted rock core by jump ring, be easily damaged in operation at that time.
The present invention is intended to provide a kind of make simple, robust coring bit, can by being set in rotary rock drill inwall
The wedge key of slip blocks core, and core is extracted in hole, realizes the collection of rock core.
The content of the invention
The coring tube drill bit that the present invention is provided, it is intended to solve in the prior art, rock coring bit complex manufacturing technology is held
Flimsy problem.
The present invention is achieved in that, including drilling pipe and multiple wedge keies for being used to block core, the drilling pipe, which has, to be opened
The downward cavity volume of mouth, the madial wall of the drilling pipe is provided with multiple chutes, axial direction extension of the chute along the drilling pipe
Arrangement；The wedge key is arranged in the chute, and is slided up and down along the chute；The chute is formed towards the cavity volume
Side opening；The wedge key drops out the limiting structure of the cavity volume provided with the core limited in the cavity volume.
Further, the limiting structure includes being formed in the wedge key top incline, and the inclined plane is described in
The side opening arrangement of chute, and the direction along the drilling pipe from bottom to top, the inclination, which is faced outwardly, to be in tilted layout.
Further, the wedge key has vertical plane, and the side opening of the vertical plane towards the chute is arranged, and
It is arranged in the lower section of the inclined plane.
Further, along the top-down direction of the drilling pipe, the depth of the chute is gradually reduced.
Further, the direction along the drilling pipe radially from outer to inner, the chute is in shape wide outside and narrow inside.
Further, the chute is arranged on the bottom of drilling pipe side wall, and between having with the bottom of the drilling pipe
Away from.
Further, multiple chutes are evenly distributed on drilling pipe side wall.
Further, the drilling pipe bottom is provided with into rock tooth, it is described enter rock tooth extend down, end is in cone-shaped.
Further, the coring tube drill bit also includes fork, and the fork at the top of the drilling pipe with being connected.
Further, jack is provided with the fork, the jack is arranged on the side of the fork.
Compared with prior art, the coring tube drill bit that the present invention is provided, by setting multiple chutes in drilling pipe, in chute
The wedge key being inside provided with, wedge key can be slided up and down along chute, and wedge key is dropped out provided with the core in limitation cavity volume
The limiting structure of cavity volume, so, in drill bit drilling process, after core fills drilling bucket, during putting on upwards, core can not be kept away
Exempt to tilt to the left or to the right, during inclined core slide downward, drive wedge key slide downward, wedge key slide downward
During its limiting structure can block core, core is not fallen out, drilling pipe just can by core propose hole outside.The coring tube is bored
Head technique is simple, and easy processing, raising efficiency is high, and will not damage drilling bucket and auxiliary device, solves rock coring bit system
Make complex process, the problem of being easily damaged.
Brief description of the drawings
Fig. 1 is the structural representation of coring tube drill bit provided in an embodiment of the present invention；
Fig. 2 is diagrammatic cross-section at A-A in Fig. 1；
Fig. 3 is diagrammatic cross-section at B-B in Fig. 1；
Fig. 4 is diagrammatic cross-section at C-C in Fig. 1；
Fig. 5 is diagrammatic cross-section at D-D in Fig. 1.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The realization of the present invention is described in detail below in conjunction with specific embodiment.
The same or analogous part of same or analogous label correspondence in the accompanying drawing of the present embodiment；In description of the invention
In, it is to be understood that if having the orientation or position relationship of the instructions such as term " on ", " under ", "left", "right" for based on accompanying drawing institute
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore described in accompanying drawing position relationship use
Language being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
Shown in reference picture 1~5, the preferred embodiment provided for the present invention.
The coring tube drill bit that the present invention is provided, for extracting rock core.
Coring tube drill bit, including drilling pipe 11 and multiple wedge keies 12 for being used to block core, drilling pipe 11 is with Open Side Down
Cavity volume, in drilling process, rock can be entered in the cavity volume, formed rock core；The madial wall of drilling pipe 11 is provided with multiple cunnings
Groove 18, chute 18 is disposed to extend along the axial direction of drilling pipe, that is to say, that chute 18 is strip and vertical arrangement；The court of chute 18
To cavity volume formation side opening 13, wedge key 12 is arranged in chute 18, and is slided up and down along chute 18, and wedge key 12 is provided with
Core in limitation cavity volume drops out the limiting structure of cavity volume.
In drill bit drilling process, after core fills drilling bucket, during putting on upwards, core inevitably to the left or to
During right bank, inclined core slide downward, during driving the slide downward of wedge key 12, the slide downward of wedge key 12
Its limiting structure can block core so that core is not fallen out, and drilling pipe 11 just can propose core outside hole.The coring tube drill bit
Technique is simple, and easy processing, raising efficiency is high, and will not damage drilling bucket and auxiliary device, solves the making of rock coring bit
Complex process, the problem of being easily damaged.
Specifically, limiting structure includes being formed in the top incline 14 of wedge key 12, side of the inclined plane 14 towards chute 18
Opening arrangement, and the direction along drilling pipe from bottom to top, inclined plane 14 are in tilted layout outwardly, so, during drilling pipe 11 is above carried,
Inclined rock core can be trapped in the groove of the inclined plane 14 of wedge key 12 formation so that wedge key 12 can obtain rock core card more
Tightly.
Specifically, wedge key 12 has vertical plane, and the side opening of vertical plane towards chute 18 is arranged, and is arranged in inclination
The lower section in face 14, so that when drilling pipe 11 is above carried, the contact surface of wedge key 12 and rock core is bigger, rock core by the more steady of card,
So so that wedge key 12 is not easy to wear, the service life of wedge key 12 is extended.
In the present embodiment, along the top-down direction of drilling pipe 11, the depth of chute 18 is gradually reduced.In core to downslide
During dynamic, the slide downward of wedge key 12, because the depth of top-down direction chute 18 is gradually reduced, multiple wedge shapes are driven
It can be tightened up during the slide downward of key 12 into cavity volume so that the rock core in cavity volume is stuck so that rock core can be carried smoothly
Go out drilling.
In the present embodiment, along the direction of drilling pipe 11 radially from outer to inner, chute 18 is in shape wide outside and narrow inside.So, Ke Yibao
Demonstrate,prove wedge key 12 can along chute 18 slidably while so that the inwall of chute 18 and wedge key 12 connect more consolidate,
Prevent wedge key 12 in sliding process, wedge key 12 when blocking rock core, depart from chute 18 so that coring tube drill bit is harder
Gu it is durable.
In the present embodiment, chute 18 is arranged on the bottom of the side wall of drilling pipe 11, so, and height of the rock core in drilling pipe 11 exceedes
After the height of the upper end of chute 18, wedge key 12 is in rock core sideways, if now drilling pipe 11 is up carried, in rock core side
Wedge key 12 can just block rock core, that is to say, that chute 18 is arranged on the bottom of drilling pipe 11, can cause rock core in drilling pipe 11
Discontented cylinder can also by rock core propose hole outside, so so that coring tube bit operation more facilitate, using can be cleverer
It is living.Chute 18 and the bottom of drilling pipe 11 have spacing,
In the present embodiment, multiple chutes 18 are evenly distributed on the side wall of drilling pipe 11, so, during lifting, multiple chutes
18 apply pressure from all directions to rock core so that rock core is by the tighter of card.
In the present embodiment, the bottom of drilling pipe 11 is provided with into rock tooth 15, is entered rock tooth 15 and is extended down, end in cone-shaped,
The drilling of drilling pipe 11 is relied primarily on into rock tooth 15, and operationally, drilling pipe 11 can carry out high speed rotation, now enter rock tooth 15 by drilling pipe
11 drive, and also carry out the rotation of high speed, enter rock tooth 15 and constantly the rock of its bottom is cut so that rock core and its institute
Extension separation.Enter the end of rock tooth 15 and be arranged to cone-shaped, it is possible to reduce lifting surface area, increase pressure, it is reasonable enter rock tooth 15
Cutting to rock.
In the present embodiment, coring tube drill bit also includes fork 16, and fork 16 is arranged on the top of drilling pipe 11, and and drilling pipe
The firm connection in 11 tops, passes through fork 16, it is possible to achieve the connection of drill bit and rig so that rig easily can be exchanged for more
Core cylinder drill bit.
Specifically, jack 17 is provided with fork 16, the jack 17 is arranged on the side of fork 16, is needing connection
When rig and drill bit, fork 16 is connected with the drill bit join domain of rig, the connecting hole of join domain aligns with jack 17,
Then with fixed strip through connecting hole and jack 17 and fixed, allow for coring tube drill bit and consolidate with rig to be connected.Needing more
When changing coring tube drill bit, fixed strip is removed, you can make original coring tube drill bit and rig separation, then with new coring tube brill
Head is connected with rig, realizes the replacing of drill bit.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent and improvement made within refreshing and principle etc., should be included within the scope of the present invention.
Claims (10)
1. coring tube drill bit, it is characterised in that including drilling pipe and multiple wedge keies for being used to block core, the drilling pipe, which has, to be opened
The downward cavity volume of mouth, the madial wall of the drilling pipe is provided with multiple chutes, axial direction extension of the chute along the drilling pipe
Arrangement；The wedge key is arranged in the chute, and is slided up and down along the chute；The chute is formed towards the cavity volume
Side opening；The wedge key drops out the limiting structure of the cavity volume provided with the core limited in the cavity volume.
2. coring tube drill bit as claimed in claim 1, it is characterised in that the limiting structure includes being formed in the wedge key
Top incline, the inclined plane is arranged towards the side opening of the chute, and the direction along the drilling pipe from bottom to top, described
Inclination, which is faced outwardly, to be in tilted layout.
3. coring tube drill bit as claimed in claim 1, it is characterised in that the wedge key has vertical plane, the vertical plane
Arranged towards the side opening of the chute, and be arranged in the lower section of the inclined plane.
4. coring tube drill bit as claimed in claim 1, it is characterised in that described along the top-down direction of the drilling pipe
The depth of chute is gradually reduced.
5. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that along drilling pipe radial direction from outer to inner
Direction, the chute be in shape wide outside and narrow inside.
6. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that the chute is arranged on the drilling pipe
The bottom of side wall, and there is spacing with the bottom of the drilling pipe.
7. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that multiple chutes are evenly distributed on
Drilling pipe side wall.
8. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that the drilling pipe bottom be provided with into
Rock tooth, it is described enter rock tooth extend down, end is in cone-shaped.
9. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that the coring tube drill bit also includes inserting
Plunger, the fork at the top of the drilling pipe with being connected.
10. the coring tube drill bit as described in any one of Claims 1-4, it is characterised in that be provided with the fork slotting
Hole, the jack is arranged on the side of the fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710375008.XA CN106939770A (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710375008.XA CN106939770A (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106939770A true CN106939770A (en) | 2017-07-11 |
Family
ID=59465074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710375008.XA Withdrawn CN106939770A (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939770A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185405A (en) * | 2019-06-25 | 2019-08-30 | 中国铁建重工集团股份有限公司 | Core extraction device |
| CN110500037A (en) * | 2019-09-16 | 2019-11-26 | 陕西延长石油（集团）有限责任公司 | A kind of drill bit and method obtaining shaft bottom landwaste with brill |
| CN110872936A (en) * | 2019-12-25 | 2020-03-10 | 湖南基础工程公司 | Double-cylinder loose-leaf clamping self-locking type cutting tooth coring drill cylinder |
| CN113236165A (en) * | 2021-03-31 | 2021-08-10 | 广东海洋大学 | Portable core sampling external member |
-
2017
- 2017-05-24 CN CN201710375008.XA patent/CN106939770A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185405A (en) * | 2019-06-25 | 2019-08-30 | 中国铁建重工集团股份有限公司 | Core extraction device |
| CN110500037A (en) * | 2019-09-16 | 2019-11-26 | 陕西延长石油（集团）有限责任公司 | A kind of drill bit and method obtaining shaft bottom landwaste with brill |
| CN110500037B (en) * | 2019-09-16 | 2024-05-03 | 陕西延长石油（集团）有限责任公司 | Drill bit and method for acquiring drill hole cuttings while drilling |
| CN110872936A (en) * | 2019-12-25 | 2020-03-10 | 湖南基础工程公司 | Double-cylinder loose-leaf clamping self-locking type cutting tooth coring drill cylinder |
| CN110872936B (en) * | 2019-12-25 | 2024-04-19 | 湖南基础工程公司 | Double-cylinder movable blade clamp self-locking type pick core drill cylinder |
| CN113236165A (en) * | 2021-03-31 | 2021-08-10 | 广东海洋大学 | Portable core sampling external member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170711 |