CN203097725U - Three-cutter-wing large opening reverse circulation drill - Google Patents
Three-cutter-wing large opening reverse circulation drill Download PDFInfo
- Publication number
- CN203097725U CN203097725U CN 201320126130 CN201320126130U CN203097725U CN 203097725 U CN203097725 U CN 203097725U CN 201320126130 CN201320126130 CN 201320126130 CN 201320126130 U CN201320126130 U CN 201320126130U CN 203097725 U CN203097725 U CN 203097725U
- Authority
- CN
- China
- Prior art keywords
- wing
- drill
- cutter
- reverse circulation
- bit body
- 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 - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a three-cutter-wing large opening reverse circulation drill which comprises a drill body, wherein through holes are formed in the drill body; a plurality of cutter wings are arranged on the outer wall of the drill; upper ends of the cutter wings gather at a position at the end part of a drill pipe; the position is at the medial axis of the drill pipe; a liquid suction opening is formed between two adjacent cutter wings; and the liquid suction openings are communicated with the through holes. The three-cutter-wing large opening reverse circulation drill can solve the problem that a normal circulation structure destroys the surface of a well wall; fewer cutter wings are arranged, and the inflow opening of the drilling fluid in the drill is large, so that rock waste can be easily taken away, and the use effect is improved on the condition of small difference between the inner pressure and the outer pressure.
Description
Technical field
The utility model relates to a kind of drill bit, especially relates to the big opening reverse circulation drill bit of a kind of three wings, belongs to the probing field.
Background technology
Probing be with drilling equipment from the face of land to underground drilling and forming hole, thereby reach the engineering construction engineering of the task of wanting.Can be divided into from the purpose of probing: geological drilling, the hydrological well probing, the engineering investigation probing, oil drilling or the like, probing just need use drill bit, requisite fractured rock instrument when drill bit is drilling well, mainly contain rock bit, diamond bit and drag bit, generally in geology, the drill bit that uses in the oil drilling engineering all is direct circulation, so-called direct circulation is meant that using drilling fluid (mud or clear water) in the drilling engineering is to pour into down from the drilling rod centre bore, flows out from drill bit nozzle, returns ground then around drilling-rod external wall, its effect is to clean cooling bit cutting tooth with drilling fluid, takes cutting swarf out of shaft bottom simultaneously.
At some broken grounds, drilling fluid can make the drilling well bottom outlet be expanded into the cavity from the scouring force that bit nozzle ejection produces, and the drilling fluid band from returning ground between the drilling-rod external wall and the wellhole of having bored and also may be destroyed the borehole wall surface simultaneously.
The utility model content
It is direct circulation structure and borehole wall surface is produced the problem of destroying that the purpose of this utility model is to overcome existing drill bit, provides a kind of three wings big opening reverse circulation drill bit.
The purpose of this utility model is achieved through the following technical solutions: the big opening reverse circulation drill bit of a kind of three wings, comprise bit body, the inside of described bit body is provided with through hole, the outer wall of described bit body is provided with several wings, the upper end of wing converges at a place that is positioned at the bit body end, this place is positioned on the axis of bit body, and has liquid sucting port between the adjacent wing, and liquid sucting port is communicated with through hole.
In such scheme; wing is converged at the outer place of drilling rod, exist the gap that is connected with through hole as liquid sucting port between the adjacent wing, liquid sucting port is the passage that through hole is connected with the borehole wall; reduce the jet setting of direct circulation drill bit, provide protection to borehole wall surface when making work.
Further, described bit body forms several arc grooves in the lower end indent near wing, and the quantity of arc groove is identical with the quantity of wing, the arc groove that distributes between the adjacent wing, and arc groove and corresponding liquid sucting port connection.
In technique scheme, arc groove is set, in a disguised form increased the area of liquid sucting port by the structure of indent, make that the effect of imbibition is more obvious, can not occur stopping up.
Further, the quantity of described wing is three.Three wings are as preferential quantity, and the quantity of wing is few, and the space of liquid sucting port is just big, and imbibition is more quick.
Further, described bit body is fixed with connection handle at the end away from wing, and the outer wall of connection handle is provided with screw thread.Connection handle is the intermediate structure that connects with drilling rod as drill bit, and the inside of connection handle also is provided with through hole, with through hole in the bit body on same axis, can make things convenient for the outflow of flushing liquid, the screw thread of connection handle outer wall, make screw tightr.
In sum, the beneficial effects of the utility model are: this drill bit can solve the direct circulation structure and borehole wall surface be produced the problem of destroying, by the wing of negligible amounts is set, the drilling liquid flow inlet is big on the drill bit, under the little situation of inside and outside differential pressure, easily landwaste is taken away, improved result of use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark and corresponding component title in the accompanying drawing: 1-connection handle; 2-bit body; 3-arc groove; 4-through hole; 5-liquid sucting port; 6-wing.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment 1:
As shown in Figure 1, the big opening reverse circulation drill bit of a kind of three wings, comprise bit body 2, the inside of described bit body 2 is provided with through hole 4, the outer wall of described bit body 2 is provided with several wings 6, and the upper end of wing 6 converges at a place that is positioned at bit body 2 ends, and this place is positioned on the axis of bit body 2, and have liquid sucting port 5 between the adjacent wing 6, liquid sucting port 5 is communicated with through hole 4.Utilize through hole 4 and liquid sucting port 5, drilling fluid is absorbed, reduced the spray-hole of direct circulation structure, because the impact force of spray-hole is big, surface to the borehole wall produces destruction easily, and the utility model is by liquid sucting port drilling fluid to be sucked bit body, has avoided the impact force to the borehole wall, makes the borehole wall can not be damaged.
Embodiment 2:
As shown in Figure 1, on the basis of embodiment 1, the preferred amount of wing is three, bit body 2 forms three arc grooves 3 in the lower end indent near wing 6, the quantity of arc groove 3 is identical with the quantity of wing 6, an arc groove 3 and arc groove 3 and corresponding liquid sucting port 5 connections distribute between the adjacent wing 6.The openend of arc groove 3 is communicated with liquid sucting port 5, form an overall structure, by arc groove 3 is set, increased the area of liquid sucting port 5, make that efficient is faster when absorbing drilling fluid, and can not stop up that the quantity of wing 6 is few, also be the space that has increased between the wing 6, further increased the area of liquid sucting port 5.
Embodiment 3:
As shown in Figure 1, on the basis of the foregoing description, described bit body 2 is fixed with connection handle 1 at the end away from wing 6, and the outer wall of connection handle 1 is provided with screw thread.Connection handle 1 is the intermediate structure that is connected with drilling rod as drill bit, utilizes screw thread to strengthen the dynamics that screws.
Take aforesaid way, just can realize the utility model preferably.
Claims (4)
1. big opening reverse circulation drill bit of wing, comprise bit body (2), the inside of described bit body (2) is provided with through hole (4), it is characterized in that: the outer wall of described bit body (2) is provided with several wings (6), wing (6) upper end converges at a place that is positioned at bit body (2) end, this place is positioned on the axis of bit body (2), and has liquid sucting port (5) between the adjacent wing (6), and liquid sucting port (5) is communicated with through hole (4).
2. the big opening reverse circulation drill bit of a kind of three wings according to claim 1, it is characterized in that: described bit body (2) forms several arc grooves (3) in the lower end indent near wing (6), the quantity of arc groove (3) is identical with the quantity of wing (6), an arc groove (3) and arc groove (3) and corresponding liquid sucting port (5) connection distribute between the adjacent wing (6).
3. the big opening reverse circulation drill bit of a kind of three wings according to claim 1 and 2, it is characterized in that: the quantity of described wing (6) is three.
4. the big opening reverse circulation drill bit of a kind of three wings according to claim 3, it is characterized in that: described bit body (2) is fixed with connection handle (1) at the end away from wing (6), and the outer wall of connection handle (1) is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126130 CN203097725U (en) | 2013-03-20 | 2013-03-20 | Three-cutter-wing large opening reverse circulation drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126130 CN203097725U (en) | 2013-03-20 | 2013-03-20 | Three-cutter-wing large opening reverse circulation drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097725U true CN203097725U (en) | 2013-07-31 |
Family
ID=48849134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126130 Expired - Lifetime CN203097725U (en) | 2013-03-20 | 2013-03-20 | Three-cutter-wing large opening reverse circulation drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350917A (en) * | 2015-12-04 | 2016-02-24 | 吉林大学 | Spiral flow strong suction type reverse circulation coring drill bit |
| CN110924872A (en) * | 2018-09-20 | 2020-03-27 | 中国石油天然气股份有限公司 | Drill bit for reverse circulation drilling |
| CN111764833A (en) * | 2020-07-02 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Ball valve type anti-blocking three-wing drill |
-
2013
- 2013-03-20 CN CN 201320126130 patent/CN203097725U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350917A (en) * | 2015-12-04 | 2016-02-24 | 吉林大学 | Spiral flow strong suction type reverse circulation coring drill bit |
| CN110924872A (en) * | 2018-09-20 | 2020-03-27 | 中国石油天然气股份有限公司 | Drill bit for reverse circulation drilling |
| CN111764833A (en) * | 2020-07-02 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Ball valve type anti-blocking three-wing drill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206267815U (en) | Drilling type continuous sand flushing device | |
| CN103628819A (en) | Near-bit torsion impactor | |
| CN203097725U (en) | Three-cutter-wing large opening reverse circulation drill | |
| CN104265178B (en) | Broad | |
| CN204386484U (en) | The tangential pouring-in swirl jet pump drill head of a kind of double-wall drill pipe counterflush drilling | |
| CN203905895U (en) | Multifunctional rotary jet grouting device for core drilling | |
| CN103104203A (en) | Drilling-fluid solid-control control process | |
| CN203594365U (en) | Near-bit torsional impactor | |
| CN103556953A (en) | Bottom hole negative-pressure upward-going spray nozzle PDC drill bit | |
| CN108533180A (en) | A kind of drilling engineering is with boring hole-drawing device and reaming method | |
| CN203097723U (en) | Rotary jet-flow PDC drill bit | |
| CN208502674U (en) | A kind of two-way injection core bit of reduction chip hold down effect | |
| CN204782766U (en) | Horizontal well unblocking tool | |
| CN203783497U (en) | Drillable bridge plug fragment cleaning tool for oil and gas well | |
| CN106437518A (en) | Throttle-type pulse vibration drilling tool | |
| CN203559791U (en) | Shaft bottom negative-pressure upward-movement nozzle PDC drill | |
| CN202850915U (en) | Drift diameter gauge of one-time full well drilling tool | |
| CN205297351U (en) | Circulation is penetrated to inhale and is subtracted confined pressure drill bit | |
| CN205277313U (en) | Stifled high -efficient drill bit is prevented in reverse circulation | |
| CN204899858U (en) | Radial well plain type recycle valve | |
| CN105888555B (en) | Cluster down-hole hammer reamer and horizontal reaming construction method | |
| CN107386979A (en) | Interior chip removal pulsing jet is depressured drill bit | |
| CN201913289U (en) | Drill | |
| CN204266946U (en) | Rotary steering stabilizer | |
| CN204312000U (en) | A kind of drag bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |