DRILLING DEVICE

• US 20090057011A1
• Filed: 04/01/2008
• Published: 03/05/2009
• Est. Priority Date: 04/02/2007
• Status: Active Grant

• Current Assignee: GVA Consultants AB (Halliburton Company)
• Original Assignee: GVA Consultants AB (Halliburton Company)
• Inventors: Ludwigson, Robert, PETERSSON, INGE
• Granted Patent: US 7,628,225 B2
• Time in Patent Office: Days
• US Class Current: 175/5
• CPC Class Codes: E21B 15/02 specially adapted for underwater drilling E21B15/04 takes precedence
• CPC Class Codes: E21B 19/002 specially adapted for underwater drilling E21B19/09, E21B19/143 take precedence
• CPC Class Codes: E21B 19/02 Rod or cable suspensions
• CPC Class Codes: E21B 19/08 Apparatus for feeding the rods or cables E21B19/22 takes precedence; automatic feed E21B44/02; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
• CPC Class Codes: E21B 19/143 specially adapted for underwater drilling

Abstract

The present embodiments relate to systems for building and/or handling a tubular string of a drilling device. The drilling device comprises a drill floor and a drilling derrick extending from the drill floor. The drill floor has an extension in a first plane (P1) being substantially perpendicular to a first direction (N). The system comprises a suspension device being fixedly attached to the drilling derrick, wherein a projection of the suspension device, in the first direction, onto the first plane (P1), is situated outside the drill floor. The present embodiments also relate to drilling device trolleys arranged to transport a component to and from a drilling centre of a drilling device. The present embodiments relate to a use of a drilling device having a drill floor, wherein the drilling device has a suspension device being situated outside the drill floor.

Claims

1. ) A system for building and/or handling a tubular string of a drilling device, wherein said drilling device comprises a drill floor and a drilling derrick extending from said drill floor, wherein said drill floor has an extension in a first plane being substantially perpendicular to a first direction, said system comprising a suspension device being fixedly attached to said drilling derrick, wherein a projection of said suspension device in said first direction onto said first plane is situated outside said drill floor, characterized in that said system further comprises a hang-off device being situated at a distance in the said first direction from said suspension device, wherein said hang-off device is arranged to, for at least part of the time, be in a working position, so that a projection of said hang-off device, in said first direction onto said first plane is situated outside said drill floor.

2. ) The system of claim 1, wherein said projection of said suspension device coincides with said projection of said hang-off device.

3. ) The system of claim 1, wherein said drilling derrick extends from said drill floor in substantially said first direction.

4. ) The system of claim 1, wherein said drilling derrick extends from a first side of said drill floor, wherein said hang-off device is situated at the opposite side of said drill floor.

5. ) The system of claim 1, wherein said hang-off device is arranged to be movable in relation to said drill floor.

6. ) The system of claim 5, wherein said hang-off device is arranged to be movable in a second plane being substantially parallel to said first plane.

7. ) The system of claim 5, wherein said hang-off device is fixedly attached to a drilling device trolley being movable in said second plane.

8. ) A drilling device trolley comprising a storage device for detachably storing a component outside a drill floor of a drilling device, wherein said drilling device comprises a drilling centre and said drilling device trolley is arranged to transport said component to and from said drilling centre, characterized in that said drilling device trolley further comprises an attachment means arranged to attach a hang-off device to said drilling device trolley.

9. ) The drilling device trolley of claim 8, wherein said attachment means is arranged to detachably attach said hang-off device to said drilling device trolley.

10. ) The drilling device trolley of claim 8, wherein said attachment means is arranged to fixedly attach said hang-off device to said drilling device trolley.

11. ) The drilling device trolley of claim 8, wherein said drilling device trolley is arranged to be displaced in a second plane relative to said drilling device.

12. ) The drilling device trolley of claim 11, wherein said attachment means comprises a displacement member arranged to displace at least a part of said hang-off device in relation to said drilling device trolley in a direction substantially being in said second plane.

13. ) The drilling device trolley of claim 11, wherein said attachment means comprises a pivoting member arranged to pivot at least a part of said hang-off device around an axis.

14. ) The drilling device trolley of claim 13, wherein said axis substantially extends in said second plane.

15. ) The drilling device trolley of claim 8, wherein said drilling device trolley further comprises a hang-off device attached to said attachment means.

16. ) The drilling device trolley of claim 15, wherein said hang-off device comprises an opening extending substantially perpendicular to said second plane and where said opening has an opening centre, wherein said hang-off device comprises two from each other detachable parts which are arranged to be situated at substantially opposite sides of said opening centre.

17. ) The drilling device trolley of claim 8, wherein said component is a blow-out preventer.

18. ) A drilling device comprising

a drill floor,

a drilling derrick extending from said drill floor, and

a drilling device trolley comprising a storage device for detachably storing a component outside a drill floor of a drilling device, wherein said drilling device comprises a drilling centre and said drilling device trolley is arranged to transport said component to and from said drilling centre, characterized in that said drilling device trolley further comprises an attachment means arranged to attach a hang-off device to said drilling device trolley.

19. ) The drilling device of claim 18, wherein said drill floor has an extension in a first plane being substantially perpendicular to a first direction, wherein said drilling derrick further comprises a suspension device, wherein a projection of said suspension device, in said first direction, onto said first plane is situated outside said drill floor.

20. ) The drilling device of claim 19, wherein said first and said second planes are parallel.

21. ) A method to add a tubular member to a tubular string by means of a drilling device, which drilling device comprises a drill floor and a suspension device, wherein said tubular string is attached to a hang-off device being situated outside said drill floor, wherein the method comprises the steps of:

lifting up said tubular member by means of said suspension device, wherein said tubular member is situated said outside drill floor;

attaching said tubular member to said tubular string, wherein an extended tubular string is obtained;

detaching said tubular string from said hang-off device;

lowering said tubular string by means of said suspension device, and attaching said tubular string to said hang-off device.

22. ) The method according to claim 21, wherein said tubular string has an upper end and said tubular string is attached to said hang-off device at said upper end.