CN202970530U - Well drilling borehole dredging device - Google Patents
Well drilling borehole dredging device Download PDFInfo
- Publication number
- CN202970530U CN202970530U CN 201220701394 CN201220701394U CN202970530U CN 202970530 U CN202970530 U CN 202970530U CN 201220701394 CN201220701394 CN 201220701394 CN 201220701394 U CN201220701394 U CN 201220701394U CN 202970530 U CN202970530 U CN 202970530U
- Authority
- CN
- China
- Prior art keywords
- main body
- borehole
- well drilling
- hole
- flight
- 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
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 12
- 239000011435 rock Substances 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A well drilling borehole dredging device comprises a drill pipe joint. The drill pipe joint is connected with a main body, spiral plates distributed evenly are arranged on the main body, a through hole is arranged inside the main body, the through hole is communicated with an inner hole of the drill pipe joint, the lower portion of the main body is conical, and a spiral discharging groove is respectively arranged between every two spiral plates. Due to the fact that the lower portion of the main body is conical, a borehole can be found correctly and automatically, the defect in the prior art is overcome, severe economical loss is avoided, the spiral plates can scrape an inner wall of the borehole to achieve dredging, scraped rock debris can be discharged through the spiral discharging grooves among the spiral plates, the dredging can be conducted smoothly, and a requirement for well drilling can be met. The well drilling borehole dredging device is simple in structure, low in cost and convenient to use and can be used repeatedly without repairing, and remarkable economical benefit is obtained.
Description
Technical field
The utility model relates to the equipment that a kind of oil drilling is used, and is a kind of well-drilling borehole drifting device.
Background technology
At present, in petroleum drilling operation, when passing through husky two sections of SHAHEJIE FORMATION in Dongying Formation and with overlying strata drifting or drifting, due to the soft cave-in in stratum, very difficult with existing rock bit drifting, can not find former well, cause the outlet of rock bit to be blocked and the pump problem occurs suppressing, " sugarcoated haws " well also can occur, also new well might occur, cause well filling sidetracking or well to be scrapped, produce heavy economic losses.
Summary of the invention
The purpose of this utility model is a kind of well-drilling borehole drifting device of design, overcomes the deficiency that produces with the rock bit drifting, guarantees drilling quality, reduces economic loss.
The purpose of this utility model is achieved in that and comprises tool joint, main body, and tool joint is connected with main body, and equally distributed flight is arranged on main body, body interior has through hole, through hole communicates with the endoporus of tool joint, and lower body part is tapered, between every leaf flight, the spiral drain tank is arranged.
Flight is 3 leaves, and the helical pitch of flight is 6:1 with the ratio of external diameter.
The beneficial effects of the utility model are: lower body part is tapered, can automatically find well accurately, has overcome the deficiencies in the prior art, avoid occuring heavy economic losses, flight can be realized drifting by scraping well inwall, and the spiral drain tank between every leaf flight can be discharged scraping the landwaste that chips away, and drifting is carried out smoothly, can satisfy the requirement of drillng operation, the utility model is simple in structure, and expense is low, and is easy to use, do not need repairing just reusable, have significant economic benefit.
Description of drawings
Fig. 1 is the structure chart of the utility model embodiment.
Fig. 2 is the top view after cutting open from A-A in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
as seen from the figure, embodiment of the present utility model comprises tool joint 1, main body 2, tool joint 1 is connected with main body 2, tool joint 1 top has drill rod thread to be connected with top rod, equally distributed flight 4 is arranged on main body 2, there is through hole 3 main body 2 inside, through hole 3 communicates with the endoporus of tool joint 1, can circulating mud during drifting, be carried into ground with scraping the rock that chips away, main body 2 bottoms are tapered, find well the well that has got out accurately, avoid suppressing pump and newly make well and produce economic loss, between every leaf flight 4, the spiral drain tank is arranged, can make after the mud cutting carring of through hole 3 discharges and discharge.Flight is 3 leaves, and the helicla flute between flight and flight can satisfy greatly the requirement of the bits of queuing up, and the helical pitch of flight 4 is 6:1 with the ratio of external diameter, is 150 as the diameter of flight 4, and helical pitch is 900, and this parameter is for being conducive to drifting and chip removal.
Claims (2)
1. well-drilling borehole drifting device, comprise tool joint (1), main body (2), it is characterized in that: tool joint (1) is connected with main body (2), equally distributed flight (4) is arranged on main body (2), there is through hole (3) main body (2) inside, through hole (3) communicates with the endoporus of tool joint (1), and main body (2) bottom is tapered, between every leaf flight (4), the spiral drain tank is arranged.
2. well-drilling borehole drifting device according to claim 1, it is characterized in that: flight (4) is 3 leaves, the helical pitch of flight (4) is 6:1 with the ratio of external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701394 CN202970530U (en) | 2012-12-18 | 2012-12-18 | Well drilling borehole dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701394 CN202970530U (en) | 2012-12-18 | 2012-12-18 | Well drilling borehole dredging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970530U true CN202970530U (en) | 2013-06-05 |
Family
ID=48511617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220701394 Expired - Fee Related CN202970530U (en) | 2012-12-18 | 2012-12-18 | Well drilling borehole dredging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533291A (en) * | 2014-11-06 | 2015-04-22 | 中国石油集团长城钻探工程有限公司 | Casing putting-down assisting device for complex-structure wells |
| CN109931013A (en) * | 2019-05-04 | 2019-06-25 | 东北石油大学 | Heavy weight drill pipe with wellbore cleaning action |
-
2012
- 2012-12-18 CN CN 201220701394 patent/CN202970530U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533291A (en) * | 2014-11-06 | 2015-04-22 | 中国石油集团长城钻探工程有限公司 | Casing putting-down assisting device for complex-structure wells |
| CN104533291B (en) * | 2014-11-06 | 2016-08-17 | 中国石油集团长城钻探工程有限公司 | Auxiliary device is entered under a kind of labyrinth casing |
| CN109931013A (en) * | 2019-05-04 | 2019-06-25 | 东北石油大学 | Heavy weight drill pipe with wellbore cleaning action |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |