Claims
- 1. A downhole deployment valve (DDV) system, comprising:
a tubular string within a wellbore, the tubular string having a valve member for selectively obstructing a flow path through a bore of the tubular string; and an object stopping assembly for stopping an object falling toward the valve member prior to the object contacting the valve member.
- 2. The DDV system of claim 1, wherein the assembly comprises at least one stop member selectively movable to at least partially obstruct the bore.
- 3. The DDV system of claim 1, wherein the assembly comprises a diverter disposed above the valve member, the diverter movable between an open position and a diverting position.
- 4. The DDV system of claim 1, wherein the assembly comprises an upward opening flapper member.
- 5. The DDV system of claim 1, wherein the assembly comprises an acceleration actuated brake on the object.
- 6. The DDV system of claim 5, wherein the brake comprises a friction drag block in contact with a surrounding tubular to provide a drag force, the drag block biased from setting an anchor of the brake until reaching a predetermined drag force.
- 7. The DDV system of claim 1, further comprising an actuator member that actuates both the valve member and the assembly.
- 8. The DDV system of claim 1, further comprising a control line that substantially simultaneously supplies fluid pressure to an actuator for the valve member and an actuator for the assembly.
- 9. The DDV system of claim 1, further comprising a shock attenuating material above the valve member.
- 10. A method of using a downhole deployment valve (DDV) in a wellbore, comprising:
actuating a safety mechanism above a valve member of the DDV, wherein actuating the safety mechanism moves a member of the safety mechanism to at least partially interfere with a bore above the valve member; and closing the valve member.
- 11. The method of claim 10, wherein closing the valve member and actuating the safety mechanism occur substantially simultaneously.
- 12. The method of claim 10, wherein closing the valve member and actuating the safety mechanism are caused by fluid pressure supplied to a control line common to the valve member and the safety mechanism.
- 13. The method of claim 10, wherein the safety mechanism is a diverter.
- 14. The method of claim 10, wherein the safety mechanism is a barrier.
- 15. A downhole deployment valve (DDV) system, comprising:
a first valve member for selectively controlling a pressure below the valve member; and a second valve member below the first valve member, the second valve member having an aperture therein that permits fluid flow through the second valve member.
- 16. The DDV system of claim 15, wherein the second valve member is a metering flapper.
- 17. The DDV system of claim 15, wherein the first and second valve members actuate in series.
- 18. The DDV system of claim 15, further comprising a shock attenuating material above the valve member.
- 19. A downhole deployment valve (DDV) system, comprising:
a first DDV disposed in a tubular string, the first DDV having a valve member capable of selectively controlling a pressure below the valve member; and a second DDV disposed in the tubular string, the second DDV having a redundant valve member capable of selectively controlling a pressure below the redundant valve member.
- 20. The DDV system of claim 19, wherein the first and second DDV actuate in parallel by separate actuators that operate the valve members substantially simultaneously.
- 21. The DDV system of claim 19, further comprising a diverter above the valve member.
- 22. The DDV system of claim 19, further comprising a barrier above the valve member.
- 23. The DDV system of claim 19, further comprising a shock attenuating material above the valve member.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 10/677,135, filed Oct. 1, 2003, which is a continuation in part of U.S. patent application Ser. No. 10/288,229, filed Nov. 5, 2002, which are herein incorporated by reference in their entirety. This application is a continuation-in-part of co-pending U.S. patent application Ser. No. 10/676,376, filed Oct. 1, 2003, which is a continuation in part of U.S. patent application Ser. No. 10/288,229, filed Nov. 5, 2002, which are herein incorporated by reference in their entirety. This application claims benefit of U.S. Provisional Patent Application Ser. No. 60/485,816, filed Jul. 9, 2003, which is herein incorporated by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
|
60485816 |
Jul 2003 |
US |
Continuation in Parts (4)
|
Number |
Date |
Country |
Parent |
10677135 |
Oct 2003 |
US |
Child |
10783982 |
Feb 2004 |
US |
Parent |
10288229 |
Nov 2002 |
US |
Child |
10677135 |
Oct 2003 |
US |
Parent |
10676376 |
Oct 2003 |
US |
Child |
10783982 |
Feb 2004 |
US |
Parent |
10288229 |
Nov 2002 |
US |
Child |
10676376 |
Oct 2003 |
US |