Tools and methods for use in completion of a wellbore

Abstract

A ported tubular is provided for use in casing a wellbore, to permit selective access to the adjacent formation during completion operations. A system and method for completing a wellbore using the ported tubular are also provided. Ports within the wellbore casing may be opened, isolated, or otherwise accessed to deliver treatment to the formation through the ports. A tool assembly and method for completing a well are also provided. The tool includes debris relief features that enable use in solids-laden environments, for example in the presence of sand. Forward and reverse circulation pathways to the isolated interval are present to allow clearing of debris from the wellbore annulus while the sealing device remains set against the wellbore.

What is claimed is: 
     
         1 . An assembly for treating an interval of a wellbore, comprising:
 a resettable sealing device deployed on a tubing string, the sealing device including a J-profile with a pin slidably-disposed in said J-profile for actuating the sealing device,   wherein the J-profile comprises one or more debris discharge ports through the J-profile to permit discharge of debris upon sliding movement of the pin within the J-profile.   
     
     
         2 . The assembly recited in  claim 1 , further comprising a locator having outwardly biased locating members configured to slide against a cased wellbore to verify a downhole location of the assembly prior to actuation of the resettable sealing device. 
     
     
         3 . The assembly recited in  claim 2 , wherein the locator comprises a cavity beneath the outwardly biased locating members configured to allow the passage of fluid and debris through the locator to the tubing string. 
     
     
         4 . The assembly recited in  claim 1 , wherein the pin is actuated along the J-profile by application of mechanical force to the tubing string. 
     
     
         5 . The assembly recited in  claim 1 , wherein the J-profile has a width that is at least 1/16 inch greater than a diameter of the pin to allow debris movement within the J-profile without impeding travel of the pin along the J-profile. 
     
     
         6 . The assembly recited in  claim 1 , wherein the J-profile has a depth that is at least 1/16 inch greater than a length of the pin to allow debris movement within the J-profile without impeding travel of the pin along the J-profile. 
     
     
         7 . The assembly recited in  claim 1 , wherein the J-profile has a width that is at least 1/16 inch greater than a diameter of the pin and a depth that is at least 1/16 inch greater than a length of the pin to allow debris movement within the J-profile without impeding travel of the pin along the J-profile. 
     
     
         8 . The assembly recited in  claim 1 , wherein the resettable sealing device is a mechanical set packer. 
     
     
         9 . An assembly for treating an interval of a wellbore, comprising:
 a resettable sealing device deployed on a tubing string, the sealing device including a J-profile with a pin slidably-disposed in said J-profile for actuating the sealing device   wherein the pin is held to the assembly by a clutch ring, and wherein the clutch ring comprises an aperture to permit discharge of the debris from about the pin while the pin slides within the J-profile.   
     
     
         10 . An assembly for treating an interval of a wellbore, comprising:
 a resettable sealing device deployed on a tubing string, the sealing device including a J-profile with a pin slidably disposed in said J-profile for actuating the sealing device;   an equalization valve for actuating slidable movement of the sliding pin within the resettable sealing device wherein the equalization valve comprises an equalization valve plug slidably disposed within an equalization valve housing continuous with the resettable sealing device for actuating slidable movement of the pin within the J-profile,   wherein the J-profile comprises one or more debris discharge ports through the J-profile to permit discharge of debris upon sliding movement of the pin within the J-profile.   
     
     
         11 . The assembly recited in  claim 10 , wherein the equalization plug is slidably actuated by application of mechanical force to the tubing string to set or unset the resettable sealing device within the wellbore. 
     
     
         12 . The assembly recited in  claim 10 , wherein the equalization valve comprises at least one inner port providing fluid communication between a central, axial bore within the equalization valve plug and an outer surface of the equalization valve plug and at least one outer port in the equalization valve housing. 
     
     
         13 . The assembly recited in  claim 12 , wherein the at least one inner port and the at least one outer port are substantially co-planar when the equalization valve is in a closed position. 
     
     
         14 . A method for the treatment of a formation intersected by a cased wellbore, the method comprising the steps of:
 providing a tool assembly comprising a sealing device comprising a J-profile with a pin for use in actuating the sealing device;   deploying the tool assembly on a tubing string within the cased wellbore;   setting the sealing device against the cased wellbore;   while the sealing device remains set against the cased wellbore, circulating treatment fluid down an annulus formed by the cased wellbore to treat the formation through one or more openings in the casing of the cased wellbore; \   circulating the treatment fluid from the annulus;   reverse circulating the treatment fluid from the annulus to surface through the tubing string; and   unsetting the sealing device from the cased wellbore,   wherein the J-profile comprises one or more debris discharge ports through the J-profile to permit discharge of debris upon sliding movement of the pin within the J-profile.   
     
     
         15 . The method recited in  claim 14 , wherein the sealing device remains set against the cased wellbore during reverse circulation. 
     
     
         16 . The method recited in  claim 14 , wherein the treatment fluid comprises flowable solids, and wherein the flowable solids are circulated through the J-profile. 
     
     
         17 . A method for treatment of a formation intersected by a cased wellbore, the method comprising the steps of:
 providing a tool assembly comprising a sealing device comprising a J-profile with a pin for use in actuating the sealing device;   deploying the tool assembly on a tubing string within the cased wellbore;   setting the sealing device against the cased wellbore;   while the sealing device is set against the cased wellbore, circulating treatment fluid down an annulus between the cased wellbore and the tool assembly to treat the formation through one or more openings in the casing of the cased wellbore;   opening an equalization passage extending through the sealing device to permit fluid communication of a first portion of the annulus beneath the sealing device to a second portion of the annulus above the sealing device; and,   unsetting the sealing device from the cased wellbore,   wherein the J-profile comprises one or more debris discharge ports through the J-profile to permit discharge of debris upon sliding movement of the pin within the J-profile.   
     
     
         18 . A pin carrier configured for use with a J-profile of a downhole tool comprising:
 a generally annular body having an upper surface, a lower surface, a generally cylindrical outer surface, and a generally cylindrical inner surface;   at least one passageway extending from the upper surface to the lower surface of the annular body and sized to allow the passage of fluid and debris through the pin carrier.   
     
     
         19 . The pin carrier recited in  claim 18  wherein the at least one passageway extending from the upper surface to the lower surface of the annular body is a cutout in the generally cylindrical inner surface of the generally annular body. 
     
     
         20 . The pin carrier recited in  claim 19  wherein the cutout in the generally cylindrical inner surface of the generally annular body has a semi-circular transverse cross section. 
     
     
         21 . The pin carrier recited in  claim 18  wherein the generally annular body is a two-piece body wherein each piece of the two-piece body has a substantially semi-circular transverse cross section.