CN2874009Y - Up-and-down wall scraper - Google Patents
Up-and-down wall scraper Download PDFInfo
- Publication number
- CN2874009Y CN2874009Y CN 200520086627 CN200520086627U CN2874009Y CN 2874009 Y CN2874009 Y CN 2874009Y CN 200520086627 CN200520086627 CN 200520086627 CN 200520086627 U CN200520086627 U CN 200520086627U CN 2874009 Y CN2874009 Y CN 2874009Y
- Authority
- CN
- China
- Prior art keywords
- drilling
- main body
- wall scraper
- diameter
- well
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an upper and lower wall scraper comprising a main body and anti-wear materials. The utility model is characterized in that the main body is designed into such a shape that the diameters at two ends are bigger, and likes an upside down cone. On the cylinder with a bigger diameter, anti-wear materials are inlayed, and a plurality of water-flowing slots are provided. The female thread of the wall scraper is connected with the male thread of a drilling pole, the male thread of the wall scraper is connected with the female thread of other drilling outfit, so as to form up a complete set of underground drilling outfit. At drilling, the cylinder surface with bigger diameter on the main body and the anti-wear materials contact directly with the well wall, scrape the well wall, this avoids irregularity of trajectory in a borehole, so that the borehole will be smooth, drilling and operation efficiency will be improved.
Description
Technical field:
The invention belongs to the special device in oil, the Natural Gas Drilling Operation.
Technical background:
There is subordinate's defective in the drilling well combination tool that uses at present: the drilling well combination tool major part of using at present in normal drilling process is made up of the stabilizer of drill collar, drilling rod and different size, formed well track is not ideal, especially under the immersion of drilling fluid, the well section that has is caved in, the well section that has is dwindled, thereby well track is irregular, and influence is normally crept into and completion practice.
Summary of the invention:
The present invention designs for addressing this problem just.It is made up of tool body and high-abrasive material.Before drillng operation, it is big to be designed to the two ends diameter on the tool body, becomes the back taper type, on the big face of cylinder of diameter, inlay high-abrasive material, and be provided with a plurality of gutter channels, and link together by the box thread of instrument and male thread and other drilling tools of instrument, form drilling assembly.In the drilling well round trip, utilize large end face scraping borehole wall attachment up and down, play the effect of the finishing borehole wall, help improving drillng operation efficient.Purpose of the present invention just provides a kind of wall scraper up and down of suitable drilling well round trip.
The present invention is achieved like this: a kind of wall scraper up and down is made up of main body [1], high-abrasive material [2].It is big to be designed to the two ends diameter on the main body [1], become the back taper type, on the big face of cylinder of diameter, inlay high-abrasive material [2], and be provided with a plurality of gutter channels, link together by the box thread of instrument and male thread and other drilling tools of instrument, form the bottom hole assemblies of one group of the whole series.
When the present invention constructed in the drilling well round trip, main body [1] went up the big face of cylinder of diameter and directly contacts with the borehole wall with high-abrasive material [2], and the scraping borehole wall has been avoided the irregular of well track, makes the well slyness, helps improving drilling well and completion practice efficient.
Description of drawings:
Fig. 1. a kind of wall scraper schematic diagram up and down
1. main body 2. high-abrasive materials
The specific embodiment:
Now the invention will be further described in conjunction with Figure of description, when adopting the present invention to carry out drillng operation, be designed to two ends diameter great achievement back taper type shape on the main body [1], on the big face of cylinder of diameter, inlay high-abrasive material [2], and be provided with a plurality of gutter channels, link together by the box thread of instrument and male thread and other drilling tools of instrument, form the bottom hole assemblies of one group of the whole series.
When the present invention constructed in the drilling well round trip, main body [1] went up the big face of cylinder of diameter and directly contacts with the borehole wall with high-abrasive material [2], and the scraping borehole wall has been avoided the irregular of well track, makes the well slyness, helps improving drilling well and completion practice efficient.
Claims (1)
1, a kind of up and down wall scraper is made up of main body [1], high-abrasive material [2], it is characterized in that: be designed on the main body [1] that the two ends diameter is big, mid diameter is little, one-tenth back taper type shape, the center is provided with a through hole; On the big face of cylinder of diameter, inlay high-abrasive material [2], and be provided with a plurality of gutter channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086627 CN2874009Y (en) | 2005-08-26 | 2005-08-26 | Up-and-down wall scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086627 CN2874009Y (en) | 2005-08-26 | 2005-08-26 | Up-and-down wall scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874009Y true CN2874009Y (en) | 2007-02-28 |
Family
ID=37780606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086627 Expired - Fee Related CN2874009Y (en) | 2005-08-26 | 2005-08-26 | Up-and-down wall scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874009Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437587A (en) * | 2016-08-31 | 2017-02-22 | 吉林大学 | Highly pressurized liquid driven eccentric sheave type bottom hole sleeve cutter |
| CN107676047A (en) * | 2017-10-19 | 2018-02-09 | 东营威玛石油钻具有限公司 | A kind of well shaping feature type drilling rod |
| CN107740680A (en) * | 2017-10-19 | 2018-02-27 | 东营威玛石油钻具有限公司 | A kind of well cleaning function type drilling rod |
-
2005
- 2005-08-26 CN CN 200520086627 patent/CN2874009Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437587A (en) * | 2016-08-31 | 2017-02-22 | 吉林大学 | Highly pressurized liquid driven eccentric sheave type bottom hole sleeve cutter |
| CN106437587B (en) * | 2016-08-31 | 2018-11-27 | 吉林大学 | High pressure liquid drives eccentric wheel type shaft bottom casing ripper |
| CN107676047A (en) * | 2017-10-19 | 2018-02-09 | 东营威玛石油钻具有限公司 | A kind of well shaping feature type drilling rod |
| CN107740680A (en) * | 2017-10-19 | 2018-02-27 | 东营威玛石油钻具有限公司 | A kind of well cleaning function type drilling rod |
| CN107676047B (en) * | 2017-10-19 | 2020-06-05 | 东营威玛石油钻具有限公司 | Well shaping functional type drill rod |
| CN107740680B (en) * | 2017-10-19 | 2020-06-05 | 东营威玛石油钻具有限公司 | Well cleaning function type drilling rod |
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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: 20070228 |