Positionable and Removable Isolation Device in a Wellbore

Abstract

An assembly for installation into a wellbore that includes a main wellbore and a lateral wellbore branching off the main wellbore is described. The assembly includes a tubular positionable in the main wellbore, where the tubular includes a profile. The assembly further includes an isolation device securably landable in and sealable against the profile device to isolate a region of the main wellbore from a region of the lateral wellbore.

What is claimed is: 
     
         1 . An assembly for installation into a wellbore comprising a main wellbore and a lateral wellbore branching off the main wellbore, the assembly comprising:
 a tubular positionable in the main wellbore and comprising a profile device; and   an isolation device securably landable in and sealable against the profile device to isolate a region of the main wellbore from a region of the lateral wellbore.   
     
     
         2 . The assembly of  claim 1 , wherein the isolation device is extendable into the lateral wellbore to isolate the lateral wellbore from a portion of the main wellbore. 
     
     
         3 . The assembly of  claim 1  wherein the isolation device is installable or removable from the tubular without a rig or a pulling unit device. 
     
     
         4 . The assembly of  claim 1 , wherein the isolation device is landable in the main wellbore to isolate the lateral wellbore from the main wellbore. 
     
     
         5 . The assembly of  claim 1 , wherein the profile device is locatable in the main wellbore and positionable above a junction region, below the junction region, or above and below the junction region joining the main wellbore and the lateral wellbore. 
     
     
         6 . The assembly of  claim 1 , wherein the isolation device is installable or removable from the wellbore using a downhole install device, wherein the downhole install device is configured for attachment and re-attachment to the isolation device. 
     
     
         7 . The assembly of  claim 1 , wherein a sealing device is locatable in the main wellbore. 
     
     
         8 . The assembly of  claim 7 , wherein the sealing device is usable with the profile device to secure the isolation device into the profile device. 
     
     
         9 . The assembly of  claim 1 , wherein the profile device comprises a self-orienting profile configured to rotationally orient the isolation device as it is landed in the profile device. 
     
     
         10 . A method of isolating a main wellbore from a lateral wellbore branching off the main wellbore, the method comprising:
 installing a tubular comprising a profile device in the wellbore;   landing an isolation device into the profile device;   sealing the isolation device against the tubular to isolate a junction region of the wellbore that connects the main wellbore and the lateral wellbore.   
     
     
         11 . The method of  claim 10 , further comprising sealing a first end of the isolation device into a first sealing device at a location above the junction region. 
     
     
         12 . The method of  claim 11 , further comprising sealing a second end of the isolation device into a sealing device in the main wellbore at a location below the junction region. 
     
     
         13 . The method of  claim 10 , further comprising extending the isolation device across the junction region to isolate the lateral wellbore. 
     
     
         14 . The method of  claim 10 , further comprising guiding a second end of the isolation device across the junction region to isolate a region of the main wellbore and the junction region. 
     
     
         15 . The method of  claim 10 , further comprising installing or removing the isolation device from the wellbore using at least one of a coil tube, a pipe tube, or a wireline, wherein the isolation device is attached to at least one of the coil tube, the pipe tube, or the wireline. 
     
     
         16 . The method of  claim 10 , further comprising positioning the profile device in the main wellbore above the junction region, below the junction region, or above and below the junction region. 
     
     
         17 . The method of  claim 10 , further comprising landing the isolation device in a sealing device and a profile device below the junction region. 
     
     
         18 . The method of  claim 10 , further comprising positioning a sealing device in the main wellbore based on a distance between a first lateral wellbore and a second lateral wellbore. 
     
     
         19 . The method of  claim 10 , further comprising installing or removing the isolation device without a rig or a pulling unit device. 
     
     
         20 . The method of  claim 10 , further comprising rotationally orienting the isolation device as the isolation device lands in the profile device.