Drilling device

• US 7,628,225 B2
• Filed: 04/01/2008
• Issued: 12/08/2009
• 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
• Primary Examiner(s): Beach; Thomas A
• Assistant Examiner(s): Buck; Matthew R
• Application Number:
  US12/060,727
• Publication Number:
  US 20090057011A1
• Time in Patent Office: 616 Days
• Field of Search: 175/5, 175/52, 175/85, 166/77.51, 166/79.1, 166/341, 166/358, 414/22.51, 414/22.62, 414/22.68
• 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 center 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 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, wherein said drilling device comprises a drilling centre and a drilling device trolley is arranged to transport a 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, said 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, and wherein said hang-off device comprises two from each other detachable parts which are arranged to be situated at substantially opposite sides of an opening centre.

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. The system of claim 1, wherein said attachment means is arranged to detachably attach said hang-off device to said drilling device trolley.

9. The system of claim 1, wherein said attachment means is arranged to fixedly attach said hang-off device to said drilling device trolley.

10. The system of claim 1, wherein said drilling device trolley is arranged to be displaced in a second plane relative to said drilling device.

11. The system of claim 10, 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.

12. The system of claim 10, wherein said attachment means comprises a pivoting member arranged to pivot at least a part of said hang-off device around an axis.

13. The system of claim 12, wherein said axis substantially extends in said second plane.

14. The system of claim 1, wherein said drilling device trolley further comprises said hang-off device attached to said attachment means.

15. The system of claim 1, wherein said component is a blow-out preventer.