Device, a toolstring, and a method for orientating a downhole tool

Abstract

An orientation device ( 6 ) for orientating a tool ( 7 ) within a wellbore, wherein: the orientation device ( 6 ) forms a central longitudinal axis ( 162 ) from a first orientation device end ( 122 ) to a second orientation device end ( 142 ); the orientation device ( 6 ) comprises at least one orientation member ( 62 ) displaceable between a retracted position and an extended position, the extended position has a lateral displacement compared to the retracted position; and the orientation member ( 62 ) comprises a distal end portion ( 63 ) where the distal end portion ( 63 ) is formed to be displaceable along a curve of an internal wall ( 924 ) of the wellbore.

1 . An orientation device for orientating a tool within a wellbore, the orientation device forms a central longitudinal axis from a first orientation device end to a second orientation device end; the orientation device comprises:
 at least one orientation member displaceable between a retracted position and an extended position, the extended position has a lateral displacement compared to the retracted position; and   the at least one orientation member comprises a distal end portion where the distal end portion is formed to be displaceable along a curve of an internal wall of the wellbore.   
     
     
         2 . The orientation device according to  claim 1 , wherein the distal end portion is formed to be displaceable along the central longitudinal axis along the internal wall. 
     
     
         3 . The orientation device according to  claim 1 , wherein the at least one orientation member comprises an arm. 
     
     
         4 . The orientation device according to  claim 1 , wherein the distal end portion comprises a roller. 
     
     
         5 . The orientation device according to  claim 1 , wherein the distal end portion comprises a slick roller. 
     
     
         6 . The orientation device according to  claim 1 , wherein the distal end portion comprises a ball. 
     
     
         7 . The orientation device according to  claim 1 , wherein the at least one orientation member comprises a propulsion motor, the at least one orientation member and the propulsion motor configured to provide a propulsion force along the central longitudinal axis. 
     
     
         8 . The orientation device according to  claim 1 , wherein the at least one orientation member comprises a propulsion motor, the at least one orientation member and the propulsion motor is configured to provide a propulsion force perpendicular to the central longitudinal axis. 
     
     
         9 . The orientation device according to  claim 1 , wherein the orientation device comprises a lateral displacement sensor. 
     
     
         10 . The orientation device according to  claim 1 , wherein the at least one orientation member comprises a rotation sensor. 
     
     
         11 . The orientation device according to  claim 1 , wherein the orientation device is a modified drive section. 
     
     
         12 . A toolstring comprising an orientation device and a tool to be orientated within a wellbore relative to an imaginary vertical line,
 the toolstring comprises:   the orientation device forming a central longitudinal axis from a first orientation device end to a second orientation device end and comprising at least one orientation member displaceable between a retracted position and an extended position, the extended position having a lateral displacement compared to the retracted position; and at least one orientation member comprising a distal end portion where the distal end portion formed to be displaceable along a curve of an internal wall of the wellbore; and   the tool orientated within the wellbore is rotationally stiff connected to the orientation device.   
     
     
         13 . The toolstring according to  claim 12 , wherein the orientation device is a part of a tractor. 
     
     
         14 . The toolstring according to  claim 12 , wherein the orientation device is a modified drive section. 
     
     
         15 . The toolstring according to  claim 13 , wherein the tractor comprises a plurality of orientation devices. 
     
     
         16 . The toolstring according to  claim 12 , wherein the orientation device is adapted to be operated independent of a propulsion means. 
     
     
         17 . The toolstring according to  claim 12 , wherein the orientation device is rotational stiff connected to a second part of the toolstring, while a first part of the toolstring is adapted to rotate freely relative to the orientation device. 
     
     
         18 . The toolstring according to  claim 12 , wherein the orientation device is adapted to control a lateral distance the orientation member displaces. 
     
     
         19 . The toolstring according to  claim 12 , wherein the toolstring further comprises one orientation sensor. 
     
     
         20 . The toolstring according to  claim 12 , wherein the toolstring is wireline operated. 
     
     
         21 . A method for orientating at least a part of a toolstring, the method comprises the steps of:
 providing a toolstring, forming a longitudinal axis ( 16 ), the toolstring comprising an orientation device and a tool to be orientated within a wellbore relative to an imaginary vertical line, the orientation device forming a central longitudinal axis from a first orientation device end to a second orientation device end and comprising at least one orientation member displaceable between a retracted position and an extended position, the extended position having a lateral displacement compared to the retracted position; and at least one orientation member comprising a distal end portion where the distal end portion formed to be displaceable along a curve of an internal wall of the wellbore; the tool to be orientated within the wellbore is rotationally stiff connected to the orientation device, the toolstring forms a longitudinal axis;   displacing the toolstring into a deviated part of the wellbore; and   activating the orientating device and displacing the at least one orientation member to the an extended position, such that the toolstring positions in a substantially low side position within a tubular structure and the at least one orientation member positions in a substantially high side position within the tubular structure.   
     
     
         22 . The method according to  claim 21 , further comprises displaying the toolstring along the longitudinal axis. 
     
     
         23 . The method according to  claim 22 , further comprises displacing the toolstring along the longitudinal axis by pulling a wireline. 
     
     
         24 . The method according to  claim 21 , further comprises monitoring a toolstring orientation with an orientating sensor. 
     
     
         25 . The method according to  claim 21 , further comprises deactivating a propulsion means prior to orientating the toolstring using the orientation device. 
     
     
         26 . The method according to  claim 21 , further comprises activating the propulsion means prior to deactivating the orientation device. 
     
     
         27 . The method according to  claim 21 , further comprises orientating the toolstring during a “pick up” procedure.