CA2615798A1 - Pressure activated release member for an expandable drillbit - Google Patents
Pressure activated release member for an expandable drillbit Download PDFInfo
- Publication number
- CA2615798A1 CA2615798A1 CA002615798A CA2615798A CA2615798A1 CA 2615798 A1 CA2615798 A1 CA 2615798A1 CA 002615798 A CA002615798 A CA 002615798A CA 2615798 A CA2615798 A CA 2615798A CA 2615798 A1 CA2615798 A1 CA 2615798A1
- Authority
- CA
- Canada
- Prior art keywords
- expandable
- expandable apparatus
- pressure activated
- wellbore
- connection means
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract 10
- 230000013011 mating Effects 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000004568 cement Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
An apparatus for use in a wellbore. The apparatus includes a body and a blade assembly. The blade assembly is movable between a collapsed position whereby the expandable apparatus has a smaller outer diameter and an expanded position whereby the expandable apparatus has a larger outer diameter. The apparatus further includes a pressure activated member for selectively allowing the blade assembly to move from the closed position to the open position. A method for using the apparatus, wherein a drill string with an expandable bit at the end thereof is lowered into the wellbore.
Thereafter, the pressure activated member is activated to allow the cutting members to move from the collapsed position to the expanded position. Subsequently, the expandable bit is rotated to form a portion of the wellbore. Next, the expandable bit is deactivated and the cutting members are moved from the expanded position to the collapsed position.
Thereafter, the pressure activated member is activated to allow the cutting members to move from the collapsed position to the expanded position. Subsequently, the expandable bit is rotated to form a portion of the wellbore. Next, the expandable bit is deactivated and the cutting members are moved from the expanded position to the collapsed position.
Claims (9)
1. A method of forming a wellbore, comprising:
drilling a column of cement in a tubular with an expandable apparatus;
positioning the expandable apparatus proximate a lower end of the tubular;
shifting the expandable apparatus from a closed position to an open position;
and forming a portion of the wellbore.
drilling a column of cement in a tubular with an expandable apparatus;
positioning the expandable apparatus proximate a lower end of the tubular;
shifting the expandable apparatus from a closed position to an open position;
and forming a portion of the wellbore.
2. The method of claim 1, further including activating a pressure activated member to selectively allow the expandable apparatus to move from the closed position to the open position.
3. The method of claim 2, wherein the pressure activated member is a shear pin disposed between a body and a cutting assembly of the expandable apparatus.
4. The method of claim 3, wherein a predetermined axial force shears the shear pin to allow the expandable apparatus to shift from the closed position to the open position.
5. The method of claim 2, wherein the pressure activated member comprises a shearable connection disposed between a body and a cutting assembly of the expandable apparatus.
6. The method of claim 5, wherein the shearable connection is formed by engaging a connection means on the body with a mating connection means on the cutting assembly.
7. The method of claim 6, wherein the connection means and the mating connection means are constructed and arranged from at least one thread.
8. The method of claim 1, further including pumping fluid through the expandable assembly.
9. The method of claim 4, further including creating a pressure differential in a bore of the expandable apparatus to open the expandable apparatus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/935,485 | 2004-09-07 | ||
| US10/935,485 US7131504B2 (en) | 2002-12-31 | 2004-09-07 | Pressure activated release member for an expandable drillbit |
| CA002518283A CA2518283C (en) | 2004-09-07 | 2005-09-02 | Pressure activated release member for an expandable drillbit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002518283A Division CA2518283C (en) | 2004-09-07 | 2005-09-02 | Pressure activated release member for an expandable drillbit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2615798A1 true CA2615798A1 (en) | 2006-03-07 |
| CA2615798C CA2615798C (en) | 2010-05-18 |
Family
ID=39190508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2615798A Expired - Fee Related CA2615798C (en) | 2004-09-07 | 2005-09-02 | Pressure activated release member for an expandable drillbit |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2615798C (en) |
-
2005
- 2005-09-02 CA CA2615798A patent/CA2615798C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2615798C (en) | 2010-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2471051C (en) | Borehole tubing expansion | |
| US6953096B2 (en) | Expandable bit with secondary release device | |
| US8408317B2 (en) | Tubular expansion tool and method | |
| EP2140096B1 (en) | Apparatus and methods of milling a restricted casing shoe | |
| US20040129431A1 (en) | Multi-pressure regulating valve system for expander | |
| WO2007056732A3 (en) | Method and apparatus for downhole tubular expansion | |
| WO2004027204A2 (en) | Cutter for wellbore casing | |
| CN106715827B (en) | Liner drilling using retrievable directional bottom hole assembly | |
| US9428962B2 (en) | Selective deployment of underreamers and stabilizers | |
| NO337438B1 (en) | Method and apparatus for forming a lined well | |
| US20100243277A1 (en) | Apparatus and methods for running liners in extended reach wells | |
| AU2003248421B2 (en) | Internal Pressure Indicator and Locking Mechanism for a Downhole Tool | |
| CN106460482A (en) | Downhole string for drilling through a low pressure zone | |
| CA2516074A1 (en) | Expandable whipstock anchor assembly | |
| AU2003231795B2 (en) | A downhole tool for use in a wellbore | |
| US8281880B2 (en) | Expandable tool for an earth boring system | |
| CA2518283A1 (en) | Pressure activated release member for an expandable drillbit | |
| US20070119597A1 (en) | Expanding multiple tubular portions | |
| MXPA04012387A (en) | New and improved method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores. | |
| WO2004101943A3 (en) | Underreamer | |
| WO2015077703A1 (en) | Slant-drilled valve collar | |
| AU2002314030B2 (en) | Drilling system with expandable sleeve | |
| CA2615798A1 (en) | Pressure activated release member for an expandable drillbit | |
| US20240279996A1 (en) | Methods and systems for a dissolvable plug | |
| RU2782906C1 (en) | Expander bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200902 |