Rotatably-Actuated Fluid Treatment System Using Coiled Tubing

Abstract

A system for treating a formation of a borehole having casing has a sleeve, a motor, and a packer. The sleeve is disposed on the casing in the borehole and has a port communicating out of the sleeve. An insert disposed in the sleeve is movable in the sleeve from closed to opened position relative to the port. The motor is deployed in the casing with coiled tubing and is operable to impart rotation. The packer is operatively coupled to the motor. In response to the rotation imparted by the motor, the packer sets in the insert of the sleeve and moves the insert to the opened condition.

What is claimed is: 
     
         1 . A system using coiled tubing for treating a formation of a borehole having casing, the system comprising:
 at least one sleeve disposed on the casing in the borehole, the at least one sleeve having at least one port communicating outside the at least one sleeve and having an insert disposed in the at least one sleeve, the insert movable in the at least one sleeve at least from a closed position to an opened position relative to the at least one port;   a motor deployed in the casing with the coiled tubing and being operable to impart rotation; and   a packer operatively coupled to the motor, the packer, in response to the rotation imparted by the motor, engaging in the insert of the at least one sleeve and moving the insert at least to the opened condition.   
     
     
         2 . The system of  claim 1 , wherein the insert and the sleeve comprise means for guiding rotation and axial displacement of the insert moving in the at least one sleeve at least from the closed position to the opened position. 
     
     
         3 . The system of  claim 1 , wherein the at least one sleeve comprises an internal guide disposed thereon and guiding movement of the insert in the at least one sleeve; and wherein the insert comprises an external guide disposed thereon and movable along the internal guide of the at least sleeve. 
     
     
         4 . The system of  claim 3 , wherein the internal guide defines a slot formed around an inside surface of the at least one sleeve; and wherein the external guide comprises a pin disposed on an external surface of the insert and movable along the slot. 
     
     
         5 . The system of  claim 1 , wherein the insert rotates and displaces axially in the at least one sleeve when moving from the closed position to the opened position. 
     
     
         6 . The system of  claim 1 , wherein the packer comprises at least one grip movable on the packer to an extended condition to engage the insert. 
     
     
         7 . The system of  claim 1 , wherein the packer comprises at least one packing element disposed on the packer and being compressible to engage inside the insert. 
     
     
         8 . The system of  claim 1 , wherein the motor comprises a hydraulic motor operable by flow of fluid from the coiled tubing through the motor. 
     
     
         9 . The system of  claim 1 , further comprising a valve in communication between the coiled tubing and the motor, the valve being operable to direct fluid flow from the coiled tubing away from the motor. 
     
     
         10 . The system of  claim 1 , further comprising an agitator operable to agitate the coiled tubing. 
     
     
         11 . The system of  claim 1 , wherein the insert is movable in the at least one sleeve from the opened position to the closed position. 
     
     
         12 . The system of  claim 11 , wherein to move from the closed position to the opened position, a guide component disposed between the at least one sleeve and the insert guides rotation and axial displacement of the insert in the at least one sleeve; and wherein to move from the opened position to the closed position, the guide component permits the axial displacement of the insert in the at least one sleeve. 
     
     
         13 . A sleeve for fluid communication on tubing, the sleeve comprising:
 a housing having first and second ends coupling to the tubing and having a bore therethrough, the housing defining at least one port communicating the bore outside the housing;   an insert disposed in the bore of the housing and being movable inside the bore at least from a closed position to an opened position relative to the at least one port; and   a guide component disposed between the housing and the insert and guiding rotation and axial displacement of the insert moving from the closed position to the opened position.   
     
     
         14 . A system using coiled tubing for treating a formation of a borehole through at least one sleeve disposed on casing in the borehole, the at least one sleeve having an insert disposed therein, the insert movable in the at least one sleeve at least from a closed position to an opened position relative to at least one port, the system comprising:
 a motor deployed in the casing with the coiled tubing and being operable to impart rotation; and   a packer operatively coupled to the motor, the packer, in response to the rotation imparted by the motor, engaging in the insert of the at least one sleeve and moving the insert at least to the opened condition with the rotation imparted by the motor.   
     
     
         15 . A method using coiled tubing for treating a formation of a borehole having casing with at least one sleeve disposed thereon, the method comprising:
 deploying a motor and a packer in the casing with the coiled tubing;   engaging the packer in an insert of the at least one sleeve;   imparting rotation to the packer with the motor;   moving the insert of the at least one sleeve from a closed position to an opened position with the imparted rotation of the engaged packer; and   treating the formation through at least one port of the opened sleeve.   
     
     
         16 . The method of  claim 15 , wherein engaging the packer in the insert of the at least one sleeve comprises rotating one portion of the packer relative to another portion of the packer and compressing a compressible packing element on the packer against an inside surface of the insert. 
     
     
         17 . The method of  claim 15 , wherein imparting the rotation to the packer with the motor comprises pumping fluid to the motor through the coiled tubing and rotating the packer with the rotation from the motor. 
     
     
         18 . The method of  claim 15 , wherein moving the insert of the at least one sleeve from the closed position to the opened position with the imparted rotation of the engaged packer comprises guiding rotation and axial displacement of the insert with a guide component disposed between the insert and the at least one sleeve. 
     
     
         19 . The method of  claim 15 , further comprising unsetting the packer from the insert either before or after treatment. 
     
     
         20 . The method of  claim 19 , wherein unsetting the packer comprises pulling tension on the coiled tubing and imparting rotation to the packer with the motor. 
     
     
         21 . The method of  claim 19 , wherein, after unsetting the packer before treatment, the method comprises deploying the motor and the packer on the coiled tubing downhole of the at least one port in the opened sleeve. 
     
     
         22 . The method of  claim 19 , further comprising setting the packer in the casing downhole of the at least one port in the opened sleeve. 
     
     
         23 . The method of  claim 15 , wherein treating the formation through the at least one port of the opened sleeve comprises pumping treatment down the casing. 
     
     
         24 . The method of  claim 15 , further comprising moving the insert from the opened position to the closed position in the sleeve. 
     
     
         25 . The method of  claim 24 , wherein moving the insert from the opened position to the closed position in the sleeve comprising pulling up the insert with tension of the coiled tubing on the engaged packer in the insert.