CA2545568A1 - Outil de forage a double centre ayant une capacite de reforage de tubage amelioree et une stabilite directionnelle amelioree - Google Patents
Outil de forage a double centre ayant une capacite de reforage de tubage amelioree et une stabilite directionnelle amelioree Download PDFInfo
- Publication number
- CA2545568A1 CA2545568A1 CA002545568A CA2545568A CA2545568A1 CA 2545568 A1 CA2545568 A1 CA 2545568A1 CA 002545568 A CA002545568 A CA 002545568A CA 2545568 A CA2545568 A CA 2545568A CA 2545568 A1 CA2545568 A1 CA 2545568A1
- Authority
- CA
- Canada
- Prior art keywords
- bit
- blades
- pilot
- reaming
- center
- 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.)
- Abandoned
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 64
- 230000003750 conditioning effect Effects 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 238000005553 drilling Methods 0.000 description 32
- 239000013256 coordination polymer Substances 0.000 description 19
- 238000005755 formation reaction Methods 0.000 description 16
- 229910003460 diamond Inorganic materials 0.000 description 9
- 239000010432 diamond Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/874,922 US6659207B2 (en) | 1999-06-30 | 2001-06-05 | Bi-centered drill bit having enhanced casing drill-out capability and improved directional stability |
| US09/874,922 | 2001-06-05 | ||
| CA002388948A CA2388948C (fr) | 2001-06-05 | 2002-06-04 | Outil de forage a double centre ayant une capacite de reforage de tubage amelioree et une stabilite directionnelle amelioree |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002388948A Division CA2388948C (fr) | 2001-06-05 | 2002-06-04 | Outil de forage a double centre ayant une capacite de reforage de tubage amelioree et une stabilite directionnelle amelioree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2545568A1 true CA2545568A1 (fr) | 2002-12-05 |
Family
ID=36637837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002545568A Abandoned CA2545568A1 (fr) | 2001-06-05 | 2002-06-04 | Outil de forage a double centre ayant une capacite de reforage de tubage amelioree et une stabilite directionnelle amelioree |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2545568A1 (fr) |
-
2002
- 2002-06-04 CA CA002545568A patent/CA2545568A1/fr not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |