CN202451076U - Spiral borehole prevention spiral stabilizer - Google Patents
Spiral borehole prevention spiral stabilizer Download PDFInfo
- Publication number
- CN202451076U CN202451076U CN2011205442151U CN201120544215U CN202451076U CN 202451076 U CN202451076 U CN 202451076U CN 2011205442151 U CN2011205442151 U CN 2011205442151U CN 201120544215 U CN201120544215 U CN 201120544215U CN 202451076 U CN202451076 U CN 202451076U
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- China
- Prior art keywords
- spiral
- stabilizer
- section
- straightedge
- cutting teeth
- Prior art date
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Abstract
The utility model discloses a spiral borehole prevention spiral stabilizer, which comprises a body. An internal thread is arranged at the upper end of the body, and an external thread is arranged at the lower end of the body. Three to four raised stabilizer working surfaces are uniformly distributed on the body. A straight edge section parallel to the centerline of the stabilizer is arranged at the middle position of each working surface. A group of cutting teeth is added to the front part of each straight edge section. The added straight edge sections have the function of avoiding and eliminating a spiral borehole, and are favorable for improving the quality of a well bore and increasing drilling speed.
Description
Affiliated technical field
The utility model relates to a kind of oil drilling and uses the spiral stabilizer, especially a kind of spiral stabilizer of anti-spiral well.
Background technology
At present, the spiral stabilizer that uses in the Process of Oil Well Drilling both at home and abroad all is simply spiral.In drilling process, especially in the drilling well of deep-well, form the spiral well easily.
The utility model content
In order to overcome the deficiency of existing spiral stabilizer, the utility model provides a kind of spiral stabilizer of anti-spiral well.
The technical scheme of the utility model is: the spiral stabilizer of this anti-spiral well comprises body 1; The body top and bottom have internal thread 4 and external screw thread 5 respectively; Arrange the stabilizer work plane 2 of three to four protrusions on the body equably; Interposition at work plane 2 is equipped with one section straightedge section 3 parallel with the stabilizer center line, and the part that work plane 2 is removed straightedge section 3 is still spiral.
Destroy the effect of spiral well in order to strengthen straightedge section 3, at one group of cutting teeth 6 of the anterior increase of straightedge section; The external diameter of straightedge section is than the big 0-2 millimeter of other stabilizer work plane.The quantity of cutting teeth is selected 3-5 as required for use.
In order to improve the application life of cutting teeth, cutting teeth 6 is the PDC composite sheet.
In order to realize the purpose of anti-spiral well, it is identical or differ the 3-10 degree to constitute the two sections spirality faceted pebble spiral angle of work plane 2.Centre position straightedge section 3 length parallel with the stabilizer center line are the 100-200 millimeter.
The beneficial effect of the utility model is; The straightedge section that increases has the effect of avoiding and eliminating the spiral well; Cutting teeth 6 on the straightedge section 3 can effectively machine away the spiral well that has formed, and uses the PDC composite sheet as cutting teeth, has improved the application life of cutting teeth.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is that sketch map cuts open in the utility model embodiment office.
Fig. 2 is the cross sectional representation of body 1.
Fig. 3 is the anterior sketch map that increases by one group of cutting teeth 6 of straightedge section,
Fig. 4 is the cross sectional representation that 4 work planes 2 are arranged.
1. bodies among the figure, 2. stabilizer work plane, 3. straightedge section, 4. internal thread, 5. external screw thread, 6. cutting teeth.
The specific embodiment
Like Fig. 1, shown in Figure 2, the spiral stabilizer of anti-spiral well, it comprises body 1, has internal thread 4 and 5, three stabilizer work planes 2 of external screw thread to be arranged in equably on the external surface of body 1 respectively at the two ends up and down of body.Interposition at work plane 2 is equipped with one section straightedge section 3 parallel with the stabilizer center line, and the part that work plane 2 is removed straightedge section 3 is still spiral, and two sections spirality faceted pebble spiral angle is identical.The straightedge section that increases has the effect of avoiding and eliminating the spiral well.
As shown in Figure 3, at one group of cutting teeth 6 of the anterior increase of straightedge section, the quantity of cutting teeth is 3, and cutting teeth is the PDC composite sheet.The use of PDC composite sheet has improved the application life of cutting teeth, and the efficient of destroying the spiral well is improved, thereby can make this stabilizer have the function of anti-spiral well preferably.
As shown in Figure 4, stabilizer work plane 2 is four.
Claims (5)
1. the spiral stabilizer of an anti-spiral well; Comprise body; The body top and bottom have internal thread and external screw thread respectively; On body, arrange the stabilizer work plane of three to four protrusions equably, it is characterized in that: the interposition at work plane (2) is equipped with one section straightedge section (3) parallel with the stabilizer center line.
2. the spiral stabilizer of anti-spiral well according to claim 1 is characterized in that: the external diameter of straightedge section (3) is than the big 0-2 millimeter of other stabilizer work plane, and the front portion of straightedge section (3) increases by one group of cutting teeth (6); The quantity of cutting teeth is selected 3-5 as required for use.
3. the anterior cutting teeth (6) of straightedge section according to claim 2 is characterized in that: cutting teeth (6) is the PDC composite sheet.
4. the spiral stabilizer of anti-spiral well according to claim 1 is characterized in that: it is identical or differ the 3-10 degree to constitute the two sections spirality faceted pebble spiral angle of work plane (2).
5. the spiral stabilizer of anti-spiral well according to claim 1 is characterized in that: centre position straightedge section (3) length parallel with the stabilizer center line is the 100-200 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205442151U CN202451076U (en) | 2011-12-18 | 2011-12-18 | Spiral borehole prevention spiral stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205442151U CN202451076U (en) | 2011-12-18 | 2011-12-18 | Spiral borehole prevention spiral stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451076U true CN202451076U (en) | 2012-09-26 |
Family
ID=46866946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205442151U Expired - Fee Related CN202451076U (en) | 2011-12-18 | 2011-12-18 | Spiral borehole prevention spiral stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153198A (en) * | 2021-03-03 | 2021-07-23 | 河南易发石油工程技术有限公司 | Bidirectional well trimmer for well drilling |
-
2011
- 2011-12-18 CN CN2011205442151U patent/CN202451076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153198A (en) * | 2021-03-03 | 2021-07-23 | 河南易发石油工程技术有限公司 | Bidirectional well trimmer for well drilling |
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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: 20120926 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |