CN203035125U - Hollow drill rod for oil drilling - Google Patents
Hollow drill rod for oil drilling Download PDFInfo
- Publication number
- CN203035125U CN203035125U CN 201320060983 CN201320060983U CN203035125U CN 203035125 U CN203035125 U CN 203035125U CN 201320060983 CN201320060983 CN 201320060983 CN 201320060983 U CN201320060983 U CN 201320060983U CN 203035125 U CN203035125 U CN 203035125U
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- CN
- China
- Prior art keywords
- main body
- hollow drill
- rod main
- oil drilling
- drill rod
- 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 utility model discloses a hollow drill rod for oil drilling. The hollow drill rod for the oil drilling comprises a drill rod main body (4). A connecting shaft (3) and a transit shaft (6) are respectively connected with two end faces of the drill rod main body (4), the transit shaft (6) is further connected with a connector (7), a plurality of spiral discharge grooves (5) are formed in the surface of the drill rod main body (4), and through holes (1) are further respectively formed in the drill rod main body (4), the connecting shaft (3) and the transmit shaft (6). The hollow drill rod for the oil drilling has the advantages of being capable of well and timely discharging scraps produced by drilling, not only simple in structure, convenient to assemble and disassemble, but also high in reliability.
Description
Technical field
The utility model relates to a kind of oil drilling machine accessory, specifically is a kind of for the hollow drill that connects petroleum drilling bit.
Background technology
Hollow drill is when degree of depth drilling well, its drilling well meeting produces drilling well excretas such as many soil bits, aggregate chips, when causing the obstruction in the well if these excretas can not in time, well be discharged, not only drill bit, drilling rod etc. is damaged, but also problems such as drill bit is stuck, drilling rod can not move can appear, not only rig has been caused and destroyed but also influenced the operating efficiency of rig, be unfavorable for practicality and development.
The utility model content
Problem to be solved in the utility model provides a kind of hollow drill for oil drilling, and the well intraclast can not in time well be discharged and caused blocking problem when be used for solving drilling well.
The technical scheme that the utility model provides is: the hollow drill that is used for oil drilling, comprise the drilling rod main body, two end faces of drilling rod main body are connected with connecting axle and transition axis respectively, described transition axis also is connected with joint, described drilling rod body surfaces is provided with several spiral helicine discharge launders, and described drilling rod main body, connecting axle and transition axis inside also are provided with through hole.In drilling process, the chip that gets out is upwards discharged under the influence of discharge launder structure easilier, can not stop up drill bit, has avoided the efficient reduction that causes too much because of chip and the problem of drilling rod and drilling bit breakage.
The through hole of described connecting axle inside is provided with internal thread.The through hole of connecting axle inside is provided with internal thread and is used for being connected with the drive mechanism of rig, and it is not only simple for structure stable to be threaded, the reliability height, and convenient disassembly and technology are simple.
Described connecting axle also is provided with positioning screw hole, and described positioning screw hole runs through connecting axle and is communicated with through hole.Positioning screw hole is used for the location to be used, after the drive mechanism of hollow drill and rig is connected, by dog screw pass positioning screw hole with hollow drill and drive mechanism axially and crosswise fixed locate, prevent that the two from skidding or misplacing.
Described joint is conical and is provided with tapered tread at periphery.The diameter of joint and transition axis link is greater than the joint other end, and joint is connected the back joint with drill bit can be subjected to bigger power, can well reduce the resistance that drill bit is subjected to, fabulous protection drill bit.
The screw thread effective length of described tapered tread is 8-12 centimetre.Tapered tread need be born bigger pulling force effect when connecting, the insufficient strength that is threaded if the tapered tread effective length is too short, thereby screw thread easily lost efficacy and causes accident to take place, the long then waste material of tapered tread effective length and increase cost are so the effective length of internal thread is decided to be 8-12 centimetre.
Described drilling rod main body adopts WC carbide alloy material.A kind of alloy material that the WC carbide alloy is made by powder metallurgical technique by hard compounds and the binding metal of refractory metal is common current material.The WC carbide alloy has a series of premium properties, particularly its high rigidity and abrasion resistance such as hardness height, wear-resisting, intensity and toughness is better, heat-resisting, corrosion-resistant, even also remain unchanged substantially under 500 ℃ temperature, still has very high hardness in the time of 1000 ℃.So the drilling rod main body adopts the WC Hardmetal materials can not only satisfy the job requirement of down-hole, and its abrasion resistance is extremely strong, has prolonged the application life of oil drill rocker greatly.
Advantage of the present utility model is: this hollow drill for oil drilling of the utility model design, the chip that drilling well produces can be fine, discharge timely, and be not only simple in structure, easy to loading and unloading and reliability is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Label among the figure is expressed as respectively: 1, through hole; 2, positioning screw hole; 3, connecting axle; 4, drilling rod main body; 5, discharge launder; 6, transition axis; 7, joint.
The specific embodiment
Embodiment
Referring to Fig. 1, the hollow drill that is used for oil drilling, comprise drilling rod main body 4, two end faces of drilling rod main body 4 are connected with connecting axle 3 and transition axis 6 respectively, described transition axis 6 also is connected with joint 7, described drilling rod main body 4 surfaces are provided with several spiral helicine discharge launders 5, and described drilling rod main body 4, connecting axle 3 and transition axis 6 inside also are provided with through hole 1.
The through hole 1 of described connecting axle 3 inside is provided with internal thread.
Described connecting axle 3 also is provided with positioning screw hole 2, and described positioning screw hole 2 runs through connecting axle 3 and is communicated with through hole 1.
Described joint 7 is conical and is provided with tapered tread at periphery.
The screw thread effective length of described tapered tread is 8-12 centimetre.
Described drilling rod main body 4 adopts WC carbide alloy material.
In use, elder generation is connected the external screw thread of connecting axle 3 inner via holes 1 of hollow drill with the transmission mechanism threaded engagement of rig, again dog screw is connected the location by positioning screw hole 2 with hollow drill with transmission mechanism, drill bit is connected with joint 7 can carries out drilling well work at last.
The chip that produces when drilling well is upwards discharged along discharge launder 5, has increased the chip removal space, and chip can finely be discharged timely, can not cause the obstruction of chip, has not only improved operating efficiency, has also reduced accident rate, and the reliability height is beneficial to use.
The whole connecting portion of the utility model all adopts and is threaded, convenient disassembly not only, and also simple in structure.
Can well realize the utility model as mentioned above.
Claims (6)
1. the hollow drill that is used for oil drilling, comprise drilling rod main body (4), two end faces of drilling rod main body (4) are connected with connecting axle (3) and transition axis (6) respectively, described transition axis (6) also is connected with joint (7), it is characterized in that: described drilling rod main body (4) surface is provided with several spiral helicine discharge launders (5), and described drilling rod main body (4), connecting axle (3) and transition axis (6) inside also are provided with through hole (1).
2. the hollow drill for oil drilling according to claim 1 is characterized in that: the inner through hole (1) of described connecting axle (3) is provided with internal thread.
3. the hollow drill for oil drilling according to claim 1, it is characterized in that: described connecting axle (3) also is provided with positioning screw hole (2), and described positioning screw hole (2) runs through connecting axle (3) and is communicated with through hole (1).
4. the hollow drill for oil drilling according to claim 1 is characterized in that: described joint (7) is conical and is provided with tapered tread at periphery.
5. the hollow drill for oil drilling according to claim 4, it is characterized in that: the screw thread effective length of described tapered tread is 8-12 centimetre.
6. the hollow drill for oil drilling according to claim 1 is characterized in that: described drilling rod main body (4) employing WC carbide alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060983 CN203035125U (en) | 2013-02-04 | 2013-02-04 | Hollow drill rod for oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060983 CN203035125U (en) | 2013-02-04 | 2013-02-04 | Hollow drill rod for oil drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035125U true CN203035125U (en) | 2013-07-03 |
Family
ID=48687258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320060983 Expired - Fee Related CN203035125U (en) | 2013-02-04 | 2013-02-04 | Hollow drill rod for oil drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113118514A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
-
2013
- 2013-02-04 CN CN 201320060983 patent/CN203035125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113118514A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20140204 |