CA2683705A1 - Morphible bit - Google Patents
Morphible bit Download PDFInfo
- Publication number
- CA2683705A1 CA2683705A1 CA002683705A CA2683705A CA2683705A1 CA 2683705 A1 CA2683705 A1 CA 2683705A1 CA 002683705 A CA002683705 A CA 002683705A CA 2683705 A CA2683705 A CA 2683705A CA 2683705 A1 CA2683705 A1 CA 2683705A1
- Authority
- CA
- Canada
- Prior art keywords
- chassis
- cavity
- drilling
- cutter
- medium
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
- E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
- E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
Abstract
According to the invention, a bottom hole assembly (100) for drilling a cavity is disclosed. The bottom hole assembly may include a chassis configured to rotate. The chassis may include a primary fluid conduit (110), a secondary fluid circuit (120), a pressure transfer device (115), a plurality of pistons (130), a plurality of valves (125), and a plurality of cutters (135). The primary fluid conduit may be accept a first fluid flow. The secondary fluid circuit may have a second fluid flow. The pressure transfer device may be configured to transfer pressure between the flows. The pistons may be operably coupled with the secondary fluid circuit, and each piston may be configured to move based at least in part on a pressure of the secondary fluid circuit at that piston, with the valves possibly configured to control a pressure of the secondary fluid circuit at each piston. Each cutter may be coupled with one of the pistons.
Claims (24)
1. A bottom hole assembly for drilling a cavity, wherein the bottom hole assembly comprises:
a chassis configured to rotate, wherein the chassis comprises:
a primary fluid conduit configured to accept a first fluid flow;
a secondary fluid circuit having a second fluid flow;
a pressure transfer device configured to transfer pressure between the first fluid flow and the second fluid flow;
a plurality of pistons operably coupled with the secondary fluid circuit, wherein the plurality of pistons comprises a first piston, and the first piston is configured to move based at least in part on a pressure of the secondary fluid circuit at the first piston;
a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons; and a plurality of cutters in proximity to an outer surface of the chassis, wherein each of the plurality of cutters is coupled with one of the plurality of pistons.
a chassis configured to rotate, wherein the chassis comprises:
a primary fluid conduit configured to accept a first fluid flow;
a secondary fluid circuit having a second fluid flow;
a pressure transfer device configured to transfer pressure between the first fluid flow and the second fluid flow;
a plurality of pistons operably coupled with the secondary fluid circuit, wherein the plurality of pistons comprises a first piston, and the first piston is configured to move based at least in part on a pressure of the secondary fluid circuit at the first piston;
a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons; and a plurality of cutters in proximity to an outer surface of the chassis, wherein each of the plurality of cutters is coupled with one of the plurality of pistons.
2. The bottom hole assembly for drilling a cavity of claim 1, wherein at least a portion of the plurality of valves are controlled via wireline to a surface of the medium.
3. The bottom hole assembly for drilling a cavity of claim 1, wherein the pressure transfer device comprises a fluid driven pump, wherein the fluid driven pump is powered by the first fluid flow and pressurizes the second fluid flow.
4. The bottom hole assembly for drilling a cavity of claim 3, wherein the fluid driven pump comprises a turbine, wherein the turbine is:
operably coupled with the primary fluid conduit;
operably coupled with the secondary fluid circuit;
configured to be rotated by the first fluid flow; and configured to pressurize the second fluid flow.
operably coupled with the primary fluid conduit;
operably coupled with the secondary fluid circuit;
configured to be rotated by the first fluid flow; and configured to pressurize the second fluid flow.
5. The bottom hole assembly for drilling a cavity of claim 1, wherein:
the second fluid flow comprises a magnetorheological fluid; and the plurality of valves comprise a plurality of magnetic field or electric field generators.
the second fluid flow comprises a magnetorheological fluid; and the plurality of valves comprise a plurality of magnetic field or electric field generators.
6. The bottom hole assembly for drilling a cavity of claim 1, wherein the chassis being configured to rotate comprises the chassis being configured to rotate once during a particular time period, and wherein the each of the plurality of pistons is configured to be moved at least once during the particular time period.
7. The bottom hole assembly for drilling a cavity of claim 1, wherein the bottom hole assembly further comprises a control system, and wherein the plurality of valves being configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons comprises the control system controlling the plurality of valves such that each of the plurality of pistons is extended and retracted once during a single rotation of the chassis.
8. The bottom hole assembly for drilling a cavity of claim 1, wherein the bottom hole assembly further comprises a control system, and wherein the control system is configured to:
receive data representing a rotational speed of the chassis; and control the valves based at least in part on the rotational speed of the chassis.
receive data representing a rotational speed of the chassis; and control the valves based at least in part on the rotational speed of the chassis.
9. The bottom hole assembly for drilling a cavity of claim 1, wherein the first fluid flow is a mud flow.
10. The bottom hole assembly for drilling a cavity of claim 1, wherein the bottom hole assembly further comprises a control system, and wherein the control system is configured to:
receive data representing the position of the first piston; and determine an amount of wear of a cutter coupled with the first piston based at least in part on the position of the first piston.
receive data representing the position of the first piston; and determine an amount of wear of a cutter coupled with the first piston based at least in part on the position of the first piston.
11. The bottom hole assembly for drilling a cavity of claim 1, wherein the bottom hole assembly further comprises a control system, and wherein the control system is configured to:
transmit a first control signal to at least one of the plurality of valves in order to control a pressure of the secondary fluid circuit at the first piston;
receive data representing a change in a position of the first piston;
determine a delay time between transmitting the first control signal and the change in position of the first piston; and transmit a second control signal at a later time, wherein the later time is based at least in part on the delay time.
transmit a first control signal to at least one of the plurality of valves in order to control a pressure of the secondary fluid circuit at the first piston;
receive data representing a change in a position of the first piston;
determine a delay time between transmitting the first control signal and the change in position of the first piston; and transmit a second control signal at a later time, wherein the later time is based at least in part on the delay time.
12. A method for drilling a cavity in a medium, wherein the method comprises:
providing a chassis having a plurality of cutters, wherein:
each of the plurality of cutters are extendable from, and retractable to, the chassis; and the plurality of cutters comprises a first cutter;
rotating the chassis in the medium, wherein the plurality of extendable and retractable cutters remove a portion of the medium to at least partially define the cavity; and extending the first cutter from the chassis during the rotation of the chassis in the medium.
providing a chassis having a plurality of cutters, wherein:
each of the plurality of cutters are extendable from, and retractable to, the chassis; and the plurality of cutters comprises a first cutter;
rotating the chassis in the medium, wherein the plurality of extendable and retractable cutters remove a portion of the medium to at least partially define the cavity; and extending the first cutter from the chassis during the rotation of the chassis in the medium.
13. The method for drilling a cavity in a medium of claim 12, wherein:
the plurality of cutters further comprises a second cutter;
extending the first cutter from the chassis during the rotation of the chassis in the medium comprises extending the first cutter from the chassis when the first cutter is substantially at a particular absolute radial position; and the method further comprises:
retracting the first cutter to the chassis when the first cutter is not substantially at the particular absolute radial position;
extending the second cutter from the chassis when the second cutter is substantially at the particular absolute radial position; and retracting the second cutter to the chassis when the second cutter is not substantially at the particular absolute radial position.
the plurality of cutters further comprises a second cutter;
extending the first cutter from the chassis during the rotation of the chassis in the medium comprises extending the first cutter from the chassis when the first cutter is substantially at a particular absolute radial position; and the method further comprises:
retracting the first cutter to the chassis when the first cutter is not substantially at the particular absolute radial position;
extending the second cutter from the chassis when the second cutter is substantially at the particular absolute radial position; and retracting the second cutter to the chassis when the second cutter is not substantially at the particular absolute radial position.
14. The method for drilling a cavity in a medium of claim 12, wherein extending the first cutter from the chassis during rotation of the chassis in the medium comprises:
providing a secondary fluid circuit having a second fluid flow;
pressurizing the second fluid flow;
providing a plurality of pistons operably coupled with the secondary fluid circuit, wherein:
the plurality of pistons comprises a first piston;
the first piston is configured to move based at least in part on a pressure of the secondary fluid circuit at the first piston; and the first cutter is coupled with the first piston;
providing a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons; and controlling the plurality of valves to move the first piston.
providing a secondary fluid circuit having a second fluid flow;
pressurizing the second fluid flow;
providing a plurality of pistons operably coupled with the secondary fluid circuit, wherein:
the plurality of pistons comprises a first piston;
the first piston is configured to move based at least in part on a pressure of the secondary fluid circuit at the first piston; and the first cutter is coupled with the first piston;
providing a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons; and controlling the plurality of valves to move the first piston.
15. The method for drilling a cavity in a medium of claim 14, wherein pressuring the second fluid flow comprises:
providing a first fluid flow to the chassis; and transferring pressure from the first fluid flow to the second fluid flow.
providing a first fluid flow to the chassis; and transferring pressure from the first fluid flow to the second fluid flow.
16. The method for drilling a cavity in a medium of claim 12, wherein the method further comprises:
receiving data representing the position of the first cutter; and determining an amount of wear of the first cutter based at least in part on the data representing the position of the first cutter.
receiving data representing the position of the first cutter; and determining an amount of wear of the first cutter based at least in part on the data representing the position of the first cutter.
17. The method for drilling a cavity in a medium of claim 14, wherein extending the first cutter during the rotation of the chassis in the medium comprises sending at least one control signal from a control system to the plurality of valves, and wherein the method further comprises:
receiving data representing a change in a position of the first cutter;
determining a delay time between transmitting the at least one control signal and the change in position of the first cutter; and transmitting at least one control signal at a later time, wherein the later time is based at least in part on the delay time.
receiving data representing a change in a position of the first cutter;
determining a delay time between transmitting the at least one control signal and the change in position of the first cutter; and transmitting at least one control signal at a later time, wherein the later time is based at least in part on the delay time.
18. A system for drilling a cavity in a medium, wherein the system comprises:
a plurality of cutters;
a first means for rotating the plurality of cutters in a medium;
a second means for selectively extending and retracting each of the plurality of cutters; and a third means for powering the second means.
a plurality of cutters;
a first means for rotating the plurality of cutters in a medium;
a second means for selectively extending and retracting each of the plurality of cutters; and a third means for powering the second means.
19. The system for drilling a cavity in a medium of claim 18, wherein the first means comprises a chassis, wherein the chassis is coupled with:
the plurality of cutters; and a rotational motion source.
the plurality of cutters; and a rotational motion source.
20. The system for drilling a cavity in a medium of claim 18, wherein the second means comprises:
a secondary fluid circuit having a second fluid flow;
a plurality of pistons operably coupled with the secondary fluid circuit, wherein each of the plurality of pistons are coupled with one of the plurality of cutters, and each piston is configured to move based at least in part on a pressure of the secondary fluid circuit at that piston;
a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons.
a secondary fluid circuit having a second fluid flow;
a plurality of pistons operably coupled with the secondary fluid circuit, wherein each of the plurality of pistons are coupled with one of the plurality of cutters, and each piston is configured to move based at least in part on a pressure of the secondary fluid circuit at that piston;
a plurality of valves operably coupled with the secondary fluid circuit, wherein the plurality of valves is configured to control a pressure of the secondary fluid circuit at each of the plurality of pistons.
21. The system for drilling a cavity in a medium of claim 18, wherein the third means comprises a pressure transfer device.
22. The system for drilling a cavity in a medium of claim 18, wherein the first means comprises an electric motor in a bottom hole assembly powered via wireline to a surface of the medium.
23. The system for drilling a cavity in a medium of claim 18, wherein the third means comprises an electric pump powered via wireline to a surface of the medium.
24
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/923,160 | 2007-10-24 | ||
| US11/923,160 US7836975B2 (en) | 2007-10-24 | 2007-10-24 | Morphable bit |
| PCT/US2008/078063 WO2009055199A2 (en) | 2007-10-24 | 2008-09-29 | Morphible bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2683705A1 true CA2683705A1 (en) | 2009-04-30 |
| CA2683705C CA2683705C (en) | 2012-07-10 |
Family
ID=40510536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2683705A Expired - Fee Related CA2683705C (en) | 2007-10-24 | 2008-09-29 | Morphible bit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7836975B2 (en) |
| EP (1) | EP2137372B1 (en) |
| AT (1) | ATE521785T1 (en) |
| CA (1) | CA2683705C (en) |
| WO (1) | WO2009055199A2 (en) |
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| US7287604B2 (en) * | 2003-09-15 | 2007-10-30 | Baker Hughes Incorporated | Steerable bit assembly and methods |
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| US20060096786A1 (en) * | 2004-10-21 | 2006-05-11 | Wells Gary D | Re-settable locking mechanism for downhole tools |
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| US7308957B2 (en) * | 2005-01-18 | 2007-12-18 | Smith International, Inc. | Fixed-head bit with stabilizing features |
| US7270196B2 (en) * | 2005-11-21 | 2007-09-18 | Hall David R | Drill bit assembly |
| CA2644442C (en) * | 2006-03-02 | 2013-04-23 | Baker Hughes Incorporated | Automated steerable hole enlargement drilling device and methods |
| WO2008024957A1 (en) * | 2006-08-24 | 2008-02-28 | Lord Corporation | Controllable magnetorheological fluid valve, devices, and methods |
| US7377333B1 (en) * | 2007-03-07 | 2008-05-27 | Pathfinder Energy Services, Inc. | Linear position sensor for downhole tools and method of use |
-
2007
- 2007-10-24 US US11/923,160 patent/US7836975B2/en not_active Expired - Fee Related
-
2008
- 2008-09-29 WO PCT/US2008/078063 patent/WO2009055199A2/en active Application Filing
- 2008-09-29 EP EP08842873A patent/EP2137372B1/en not_active Not-in-force
- 2008-09-29 CA CA2683705A patent/CA2683705C/en not_active Expired - Fee Related
- 2008-09-29 AT AT08842873T patent/ATE521785T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009055199A2 (en) | 2009-04-30 |
| EP2137372B1 (en) | 2011-08-24 |
| CA2683705C (en) | 2012-07-10 |
| WO2009055199A3 (en) | 2009-06-04 |
| US20090107722A1 (en) | 2009-04-30 |
| US7836975B2 (en) | 2010-11-23 |
| EP2137372A2 (en) | 2009-12-30 |
| ATE521785T1 (en) | 2011-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20181001 |