CN207131338U - Coring tube drill bit - Google Patents
Coring tube drill bit Download PDFInfo
- Publication number
- CN207131338U CN207131338U CN201720591205.0U CN201720591205U CN207131338U CN 207131338 U CN207131338 U CN 207131338U CN 201720591205 U CN201720591205 U CN 201720591205U CN 207131338 U CN207131338 U CN 207131338U
- 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.)
- Expired - Fee Related
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Abstract
The technical field of drill bit is the utility model is related to, discloses coring tube drill bit, including drilling pipe and multiple wedge keies for being used to block core, drilling pipe have the cavity volume that Open Side Down, 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；The core that wedge key is provided with limitation cavity volume drops out the limiting structure of 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 tilt to the left or to the right, during inclined core slide downward, wedge key slide downward is driven, its present structure can block core during wedge key slide downward, core is not fallen out, and drilling pipe can be with by outside core proposition hole.
Description
Technical field
The technical field of drill bit is the utility model is related to, 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 kind is circlip type coring bit, is set in the inwall of the drill bit
Install and be equipped with jump ring, rock core is extracted by jump ring, was easily damaged in operation at that time.
The utility model aims to provide a kind of simple, robust coring bit of making, by being set in rotary rock drill inwall
Put slidable wedge key and block core, core is extracted in hole, realizes the collection of rock core.
Utility model content
Coring tube drill bit provided by the utility model, it is intended to solve in the prior art, rock coring bit manufacture craft is answered
It is miscellaneous, the problem of being easily damaged.
The utility model is achieved in that including drilling pipe and multiple wedge keies for being used to block core, the drilling pipe tool
There is the cavity volume that Open Side Down, the madial wall of the drilling pipe is provided with multiple chutes, axial direction of the chute along the drilling pipe
It is disposed to extend；The wedge key is arranged in the chute, and is slided up and down along the chute；The chute is towards the cavity volume
Form side opening；The wedge key is provided with the limiting structure that the core limited in the cavity volume drops out 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 faces 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, it is gradually reduced along the top-down direction of the drilling pipe, the depth of the chute.
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 the drilling pipe side wall, and between having with the bottom of the drilling pipe
Away from.
Further, multiple chutes are evenly distributed on the 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, coring tube drill bit provided by the utility model, by setting multiple chutes in drilling pipe,
The wedge key being provided with chute, wedge key can slide up and down along chute, and wedge key is provided with the core in limitation cavity volume
The limiting structure of cavity volume is dropped out, so, in drill bit drilling process, after core fills drilling bucket, during putting on upwards, core is not
It can avoid tilting to the left or to the right, during inclined core slide downward, drive wedge key slide downward, wedge key is downward
Its limiting structure can block core during slip, and core is not fallen out, and drilling pipe can be with by outside core proposition hole.The coring
Cylinder drill bit technique is simple, and easy processing, raising efficiency is high, and will not damage drilling bucket and auxiliary device, solves rock core drill
Head complex manufacturing technology, the problem of being easily damaged.
Brief description of the drawings
Fig. 1 is the structural representation for the coring tube drill bit that the utility model embodiment provides；
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 that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Realization of the present utility model is described in detail below in conjunction with specific embodiment.
Same or analogous label corresponds to same or analogous part in the accompanying drawing of the present embodiment；Retouched of the present utility model
In stating, it is to be understood that if it is based on accompanying drawing to have the orientation of the instructions such as term " on ", " under ", "left", "right" or position relationship
Shown orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore position is closed described in accompanying drawing
Term the being given for example only property explanation of system, it is impossible to the limitation to this patent is interpreted as, for one of ordinary skill in the art
Speech, the concrete meaning of above-mentioned term can be understood as the case may be.
It is preferred embodiment provided by the utility model shown in reference picture 1~5.
Coring tube drill bit provided by the utility model, 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 are 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
Side opening 13 is formed to cavity volume, wedge key 12 is arranged in chute 18, and is slided up and down along chute 18, is set on wedge key 12
Core in restricted 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
Right bank, during inclined core slide downward, the slide downward of wedge key 12 is driven, during the slide downward of wedge key 12
Its limiting structure can block core so that core is not fallen out, and drilling pipe 11 can be with by outside core proposition hole.The coring tube bores
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.
Specifically, limiting structure includes being formed in the top incline 14 of wedge key 12, and inclined plane 14 is towards the side of 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 above carries,
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 above carries, 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, extends the service life of wedge key 12.
In the present embodiment, along 11 top-down direction of drilling pipe, 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 wedges are driven
It can be tightened up during the slide downward of shape key 12 into cavity volume so that the rock core in cavity volume is stuck so that rock core can be smooth
It is proposed 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 it is more firm,
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
It is Gu durable.
In the present embodiment, chute 18 is arranged on the bottom of the side wall of drilling pipe 11, and so, height of the rock core in drilling pipe 11 surpasses
After crossing the height of the upper end of chute 18, wedge key 12 is in rock core side, now if drilling pipe 11 up carries, in rock core side
The can of wedge key 12 block rock core, that is to say, that chute 18 is arranged on the bottom of drilling pipe 11, can cause in drilling pipe 11
Rock core, which is discontented with cylinder, to propose rock core outside hole, so so that coring tube bit operation is more convenient, and using can be more
Add flexibly.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 at work, 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 be arranged to it is 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 to connect
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 through connecting hole and jack 17 and fixed with fixed strip, allow for coring tube drill bit and the firm connection of rig.Needing more
When changing coring tube drill bit, fixed strip is removed, you can separate original coring tube drill bit and rig, then bored with new coring tube
Head is connected with rig, realizes the replacing of drill bit.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
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 are 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 is provided with the limiting structure that the core limited in the cavity volume drops out 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
On inclined plane, the inclined plane is towards the side opening arrangement of the chute, and the direction along the drilling pipe from bottom to top, institute
State inclination and face outwardly and be in tilted layout.
3. coring tube drill bit as claimed in claim 2, it is characterised in that the wedge key has vertical plane, the vertical plane
Towards the side opening arrangement of the chute, and it is 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 is 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
The 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. coring tube drill bit as claimed in claim 9, it is characterised in that jack, the jack are provided with the fork
It is arranged on the side of the fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591205.0U CN207131338U (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591205.0U CN207131338U (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131338U true CN207131338U (en) | 2018-03-23 |
Family
ID=61631297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720591205.0U Expired - Fee Related CN207131338U (en) | 2017-05-24 | 2017-05-24 | Coring tube drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798575A (en) * | 2018-07-20 | 2018-11-13 | 淮南矿业(集团)有限责任公司 | A kind of boring and coring device and implementation |
| CN114607302A (en) * | 2022-04-07 | 2022-06-10 | 中国石油大学(北京) | Core drilling device and core drilling method |
-
2017
- 2017-05-24 CN CN201720591205.0U patent/CN207131338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798575A (en) * | 2018-07-20 | 2018-11-13 | 淮南矿业(集团)有限责任公司 | A kind of boring and coring device and implementation |
| CN114607302A (en) * | 2022-04-07 | 2022-06-10 | 中国石油大学(北京) | Core drilling device and core drilling method |
| CN114607302B (en) * | 2022-04-07 | 2023-03-07 | 中国石油大学(北京) | Core drilling device and core drilling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 |