System and method for barrier installation in a wellbore

Abstract

A collar system for wellbore cementation includes a latch-in float shoe or a collar provided to run at the bottom of a casing and an inner string running inside the casing to be cemented until a latch-in adaptor engages into a receptacle or a drill pipe latch-in receiver. The inner string includes a tool which allows its full rotation to ensure make-up of the casing running tool to the casing. Full rotation of the inner string allows for safe make-up of the casing running tool to the casing;. As the inner string is disconnected and pulled out of the collar, a barrier plug is tensionally set into the collar.

1 . A collar system for wellbore cementation, comprising:
 a latch-in float shoe or a collar provided to run at the bottom of a casing;   an inner string running inside the casing to be cemented until a latch-in adaptor engages into a receptacle or a drill pipe latch-in receiver;   wherein the inner string includes a tool which allows its full rotation to ensure make-up of the casing running tool to the casing;   wherein full rotation of the inner string allows for safe make-up of the casing running tool to the casing; and   wherein as the inner string is disconnected and pulled out of the collar, a barrier plug is tensionally set into the collar.   
     
     
         2 . The system of  claim 1 , comprising the inner string in the casing which supplies cement or settable material to a casing annulus and allowing hardening of the settable material to secure or seal the casing in the drilled bore. 
     
     
         3 . The system of  claim 1 , comprising the inner string in the casing, wherein a fluid flows through the inner string and into the outer annulus to facilitate translation of the casing into a drilled bore, or cleaning of the bore. 
     
     
         4 . The system of  claim 1 , the collar includes a barrier plug receiver and the drill pipe latch-in receiver, wherein as the inner string is pulled back, the barrier plug is tensionally set into a sealing and locking position in the collar, serving to replace the bridge plug as a pressure barrier in the well. 
     
     
         5 . The system of  claim 1 , wherein the barrier plug comprises a double-acting lock-ring to seal the barrier plug with the inner diameter of the collar to provide a bi-directional pressure containment. 
     
     
         6 . The system of  claim 1 , comprising a minimal shoe track length and a gas-tight barrier system, eliminating the need to drill out the shoe track, perform a scraper or clean-out run, and perform a secondary run in the casing to set a bridge plug, thereby reducing the overall time required for wellbore completion. 
     
     
         7 . The system of  claim 6 , wherein the system reduces rig time with the minimal shoe track length and gas-tight barrier system. 
     
     
         8 . A method for wellbore cementation, the method comprising:
 running a latch-in float shoe or a collar on the bottom of a casing;   running an inner string inside the casing to be cemented until a latch-in adaptor engages into a receptacle or a drill pipe latch-in receiver;   allowing full rotation of an inner string for safe make-up of a casing running tool to the casing; and   running a collar system so that as the inner string is disconnected and pulled out of the collar, a barrier plug is tensionally set into the collar.   
     
     
         9 . The method of  claim 8 , wherein the inner string includes a tool that can be stroked partially closed to allow for full rotation for safe make-up of a casing running tool to the casing. 
     
     
         10 . The method of  claim 8 , wherein the inner string is extended into the casing to supply cement or settable material to a casing annulus. 
     
     
         11 . The method of  claim 10 , further comprising flowing fluid through the inner string and into the outer annulus to facilitate translation of the casing into a drilled bore, or cleaning of the bore. 
     
     
         12 . The method of  claim 8 , comprises flowing a settable material into the outer annulus to fill the outer annulus at least partially, and allowing hardening of the settable material to secure or seal the casing in the drilled bore. 
     
     
         13 . The method of  claim 8 , wherein the barrier plug is tensionally set into a sealing and locking position in the collar which serves to replace the bridge plug as a pressure barrier in the well. 
     
     
         14 . The method of  claim 8 , comprises engaging the barrier plug to seal the inner diameter with a double-acting lock-ring for a bi-directional pressure containment. 
     
     
         15 . The method of  claim 14 , wherein the bi-directional pressure containment is within range of 10-15 ksi at 400° F. 
     
     
         16 . The method of  claim 8 , wherein both the barrier plug and seals are protected from flow erosion by latch-in receiver and extended bore. 
     
     
         17 . The method of  claim 8 , further comprising shearing off the barrier plug stem from the barrier plug in order to retrieve the inner string and the latch-in adaptor. 
     
     
         18 . The method of  claim 8 , wherein the process comprises of a single trip for setting casing or liner and installing a barrier plug. 
     
     
         19 . The method of  claim 8 , wherein the baffle collar remains free of cement, thereby effectively preventing pressure from below the collar from entering the casing after cementing. 
     
     
         20 . An apparatus for wellbore cementation, comprising:
 a latch-in float shoe or a collar on the bottom of a casing;   an inner string run inside the casing to be cemented until a latch-in adaptor engages into a receptacle or a drill pipe latch-in receiver;   wherein the inner string is allowed for full rotation for make-up of a casing running tool to the casing; and   a collar system wherein, as the inner string is disconnected and pulled out of the collar, a barrier plug is tensionally set into the collar.   
     
     
         21 . The apparatus of  claim 20 , wherein the collar includes a barrier plug receiver and the drill pipe latch-in receiver, complete with back-up release shear out feature and plug sealing mechanism. 
     
     
         22 . The apparatus of  claim 20 , wherein the inner string includes a tool that can be stroked partially closed to allow for full rotation for safe make-up of a casing running tool to the casing.