CN201908576U - Gauge protection joint for oil field well drilling - Google Patents
Gauge protection joint for oil field well drilling Download PDFInfo
- Publication number
- CN201908576U CN201908576U CN2010206656346U CN201020665634U CN201908576U CN 201908576 U CN201908576 U CN 201908576U CN 2010206656346 U CN2010206656346 U CN 2010206656346U CN 201020665634 U CN201020665634 U CN 201020665634U CN 201908576 U CN201908576 U CN 201908576U
- Authority
- CN
- China
- Prior art keywords
- oil field
- gauge protection
- drilling
- guarantor
- utility
- 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 abstract description 14
- 230000036346 tooth eruption Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 230000003467 diminishing effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
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- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a device which is used for oil field well drilling, in particular to a gauge protection joint for oil field well drilling. A plurality of grooves are radially arranged at the outer part of a tool main body (4) of the gauge protection joint, and a gauge protection cutting tooth (3) is inlaid on a radial protruding ledge of the outer part of the tool main body (4). According to the utility model, the burr which is formed during the drilling is eliminated, steps are scappled, a well wall is maintained to be smooth,the borehole diameter is kept unchanged, and the abrasion of a drilling tool is reduced. The defects that the existing gauge protection mode easily causes the well wall to be unsmooth and generates a plurality of steps are overcome.
Description
Technical field:
The utility model relates to employed device in a kind of oil drilling, particularly a kind of guarantor's drive connector of oil field welldrilling.
Background technology:
At present, taking to protect mode directly in the producing well drilling well is to stud with to protect the footpath tooth on drill bit, owing to be subjected to the restriction of drill bit specification, protecting directly, effect falls flat, thereby causing problems such as the borehole wall is rough, step is many, these have brought hidden danger all for follow-up drilling well work.
The utility model content:
The technical problems to be solved in the utility model provides a kind of guarantor's drive connector of oil field welldrilling, and this guarantor's drive connector has been realized eliminating the burr that forms when creeping into, and scabbles step, keeps the borehole wall smooth stable with hole diameter, reduces the drilling tool wearing and tearing.Overcome the existing footpath mode of protecting and easily caused the deficiency that the borehole wall is rough, step is many.
Technical solution adopted in the utility model is: a kind of guarantor's drive connector of oil field welldrilling, form by last box, following box, guarantor's footpath cutting teeth and tool body; The tool body outer radial is provided with several grooves, studs with on the radial protrusion of tool body outside is stupefied to protect the footpath cutting teeth.
Described guarantor footpath cutting teeth is a polycrystalline diamond material.
Described guarantor footpath cutting teeth from last box to box diameter down by diminishing greatly gradually.
The beneficial effects of the utility model are: the utility model is owing to adopted the tool body outer radial to be provided with several grooves, stud with the structure of protecting the footpath cutting teeth on the radial protrusion of tool body outside is stupefied, thereby have and eliminate the burr that forms when creeping into, scabble step, keep the borehole wall smooth stable, reduce the function of drilling tool wearing and tearing with hole diameter.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a longitudinal sectional drawing of the present utility model.
Fig. 2 is a transverse cross-sectional view of the present utility model.
Fig. 3 is vertical outside drawing of the present utility model.
The specific embodiment:
Fig. 1 is a longitudinal sectional drawing of the present utility model, and as shown in Figure 1, a kind of guarantor's drive connector of oil field welldrilling is made up of last box 1, following box 2, guarantor's footpath cutting teeth 3 and tool body 4; Tool body 4 outer radial are provided with several grooves, stud with on the radial protrusion of tool body 4 outsides is stupefied to protect footpath cutting teeth 3.It is stupefied that tool body 4 outer radial are provided with six projectioies in the present embodiment, and transverse cross-sectional view of the present utility model and vertical outside drawing are as shown in Figures 2 and 3.Protecting footpath cutting teeth 3 is polycrystalline diamond materials, because polycrystalline diamond material has hardness height, good toughness, strong, the Heat stability is good of abrasion resistance under hot conditions, intensity and abrasiveness aspect obviously are better than the characteristics of other material, so polycrystalline diamond material is suitable for being applied in the hard formation of lithology densification.Protect footpath cutting teeth 3 from last box 1 to box 2 diameters down by diminishing greatly gradually, thereby can reach and eliminate the burr that forms when creeping into, scabble step, keep the borehole wall smooth and hole diameter stable, reduce the purpose of drilling tool wearing and tearing.Several grooves of tool body 4 become drilling fluid and rock and cut mobile passage.
In the utility model implementation process, following box 2 and drill bit screwed connection, last box 1 and drilling tool screwed connection, when creeping into, the utility model rotates along with drilling tool, the burr that guarantor footpath cutting teeth 3 cut drill on tool body 4 form when creeping into scabbles step, thereby plays the smooth and stable effect of hole diameter of the borehole wall that keeps.
Claims (3)
1. guarantor's drive connector of an oil field welldrilling is made up of last box (1), following box (2), guarantor's footpath cutting teeth (3) and tool body (4); It is characterized in that: tool body (4) outer radial is provided with several grooves, studs with on the radial protrusion of tool body (4) outside is stupefied and protects footpath cutting teeth (3).
2. according to the described guarantor's drive connector of claim 1, it is characterized in that: described guarantor's footpath cutting teeth (3) is a polycrystalline diamond material.
3. according to the described guarantor's drive connector of claim 1, it is characterized in that: described guarantor footpath cutting teeth (3) from last box (1) to time box (2) diameter by diminishing greatly gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206656346U CN201908576U (en) | 2010-12-17 | 2010-12-17 | Gauge protection joint for oil field well drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206656346U CN201908576U (en) | 2010-12-17 | 2010-12-17 | Gauge protection joint for oil field well drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908576U true CN201908576U (en) | 2011-07-27 |
Family
ID=44300779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206656346U Expired - Fee Related CN201908576U (en) | 2010-12-17 | 2010-12-17 | Gauge protection joint for oil field well drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100204A (en) * | 2014-08-06 | 2014-10-15 | 四川万吉金刚石钻头有限公司 | Combined PDC bit |
| CN104120978A (en) * | 2013-04-28 | 2014-10-29 | 中国石油化工股份有限公司 | PDC drill bit and combined drill |
-
2010
- 2010-12-17 CN CN2010206656346U patent/CN201908576U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120978A (en) * | 2013-04-28 | 2014-10-29 | 中国石油化工股份有限公司 | PDC drill bit and combined drill |
| CN104100204A (en) * | 2014-08-06 | 2014-10-15 | 四川万吉金刚石钻头有限公司 | Combined PDC 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: 20110727 Termination date: 20121217 |