Modular light weight drilling rig

Abstract

A modular lightweight rig ( 1 ) comprising a plurality of modules ( 2, 3, 4, 5, 6, 7, 8, 9 ) designed to be placed on a platform deck ( 15 ) and to support a drilling deck ( 10 ) on which a derrick ( 11 ) is designed to be placed. A first set of modules ( 2, 4, 6, 8 ) is arranged in a first column ( 30 ) and a second set of modules ( 3, 5, 7, 9 ) is arranged in a second column ( 31 ). A space ( 32 ) is defined between the columns, over which space the drilling deck ( 10 ) is designed to be positioned.

1 . A modular lightweight rig ( 1 ) comprising a plurality of modules ( 2 ,  3 ,  4 ,  5 ,  6 ,  7 ,  8 ,  9 ) designed to be placed on a platform deck ( 15 ) and to support a drilling deck ( 10 ), on which a derrick ( 11 ) is designed to be placed, characterised in that a first set of modules ( 2 ,  4 ,  6 ,  8 ) is arranged in a first column ( 30 ) and a second set of modules ( 3 ,  5 ,  7 ,  9 ) is arranged in a second column ( 31 ), between which columns ( 30 ,  31 ) is defined a space ( 32 ), and that the drilling deck ( 10 ) is designed to be positioned over this space ( 32 ).  
     
     
         2 . A modular lightweight rig according to  claim 1 , characterised in that the space ( 32 ) has a width that corresponds approximately to the width of the drilling deck( 10 ).  
     
     
         3 . A modular lightweight rig according to  claim 1  or  2 , characterised in that a BOP deck ( 14 ) is provided in the space ( 32 ), immediately above the deck ( 15 ) of the platform, and that the BOP deck ( 14 ) defines the width of the space and is connected to each of the columns ( 30 .  31 ).  
     
     
         4 . A modular lightweight rig according to one of claims  1 ,  2  or  3 , characterised in that a first sliding rail ( 16 ) is provided by the upper edge of the first column ( 30 ), which edge faces the second column ( 31 ), that a second sliding rail ( 17 ) is provided by the upper edge of the second column ( 31 ), which edge faces the first column ( 30 ), and that the drilling deck is arranged for sliding motion on top of the sliding rails ( 16 ,  17 ).  
     
     
         5 . A modular lightweight rig according to one of claims  1 ,  2 ,  3  or  4 , characterised in that the first column ( 30 ) comprises a frame module ( 2 ) in which a lower module assembly ( 4 ) is designed to be placed, and that the second column ( 31 ) comprises a frame module ( 3 ) in which a lower module assembly ( 5 ) is designed to be placed.  
     
     
         6 . A modular lightweight rig according to  claim 5 , characterised in that a first upper module assembly ( 6 ) is designed to be placed on top of the first frame module ( 2 ) and be carried by this, and that a second upper module assembly ( 7 ) is designed to be placed on top of the second frame module ( 3 ) and be carried by this.  
     
     
         7 . A modular lightweight rig according to  claim 6 , characterised in that a first piping deck ( 8 ) is designed to be placed on top of the first upper module assembly ( 6 ), that a first sliding rail ( 16 ) is provided by that edge of the first piping deck ( 8 ) which faces the second column ( 31 ), that a second piping deck ( 9 ) is designed to be placed on top of the second module assembly ( 7 ), that a second sliding rail ( 17 ) is provided by that edge of the second piping deck ( 9 ) which faces the first column ( 30 ), and that the drilling deck ( 10 ) is designed to be run back and forth on the sliding rails ( 16 ,  17 ).  
     
     
         8 . A modular lightweight rig according to any of the claims  4 - 7 , characterised in that each of the columns ( 30 ,  31 ) is arranged on third and fourth sliding rails ( 12 ,  13 ), which are placed on the deck ( 15 ) of the platform, that the third and fourth sliding rails ( 12 ,  13 ) generally extend across the first and second sliding rails ( 16 ,  17 ), and that the columns are designed to be run back and forth on the sliding rails ( 12 ,  13 ) together.