Tubing test system

Abstract

A technique facilitates preparation of a tubing string, such as a tubing string located in a well. For example, a ball seat member may be mounted in a tubular of a tubing string. A system is coupled to the ball seat member to enable rotation of the ball seat member between cycles. Additionally, a cycle control system is employed in cooperation with the system coupled to the ball seat member to provide control over the number of cycles. Multiple tubing integrity tests may be performed while the system ball seat member is run in hole. Additionally, the system may be used to set a hydraulic packer.

What is claimed is: 
     
         1 . A method of testing, comprising:
 dropping a ball to a ball seat member located in a tubing string;   pressuring up the tubing string to perform a test on the tubing string;   releasing the ball from the ball seat member by rotating the ball seat member via release of the pressure;   dropping a second ball to the ball seat member;   pressuring up the tubing string to perform a subsequent test on the tubing string; and   releasing the second ball from the ball seat member by rotating the ball seat member via release of the pressure.   
     
     
         2 . The method as recited in  claim 1 , further comprising setting a packer by pressuring up the tubing string. 
     
     
         3 . The method as recited in  claim 1 , wherein releasing comprises controlling the ball seat member with a ratchet system to selectively release the ball and the second ball upon release of the pressure in the tubing string. 
     
     
         4 . The method as recited in  claim 1 , further comprising controlling the number of tests on the tubing string with a J-slot system. 
     
     
         5 . The method as recited in  claim 4 , wherein controlling comprises utilizing a piston and a nitrogen chamber in cooperation with a J-slot of the J-slot system. 
     
     
         6 . The method as recited in  claim 1 , further comprising performing a plurality of additional tests on a tubing string by pressuring up the tubing string. 
     
     
         7 . The method as recited in  claim 1 , further comprising locking the ball seat member in an open flow, production position after completing testing of the tubing string. 
     
     
         8 . The method as recited in  claim 1 , wherein dropping comprises dropping a spherically shaped ball. 
     
     
         9 . The method as recited in  claim 1 , wherein dropping comprises dropping a dissolvable ball. 
     
     
         10 . A system for use in a well, comprising:
 a ball seat member mounted in a well tubular;   a ratchet system coupled to the ball seat member to enable rotation of the ball seat member between test cycles; and   a test cycle control system coupled to the ratchet system, the test cycle control system controlling the number of test cycles.   
     
     
         11 . The system as recited in  claim 10 , wherein the ratchet mechanism comprises a rack and pinion. 
     
     
         12 . The system as recited in  claim 10 , wherein the test cycle control system comprises a J-slot. 
     
     
         13 . The system as recited in  claim 12 , wherein the test cycle control system further comprises a piston coupled to a follower engaged with the J-slot. 
     
     
         14 . The system as recited in  claim 13 , wherein the test cycle control system further comprises a resilient device to return the piston after being actuated by pressure applied in the well tubular. 
     
     
         15 . The system as recited in  claim 14 , wherein the resilient device comprises a nitrogen chamber. 
     
     
         16 . The system as recited in  claim 10 , wherein the ball seat member comprises a plurality of openings, each opening being sized to receive a ball dropped down through a tubing string. 
     
     
         17 . A method of performing actions in a wellbore, comprising:
 rotatably mounting a ball seat member in a tubing string;   coupling a cycle control system to the tubing string to enable selective rotation of the ball seat member by applying and releasing pressure in the tubing string; and   rotating the ball seat member between cycles to release and capture balls used to enable application of the pressure in the tubing string.   
     
     
         18 . The method as recited in  claim 17 , wherein coupling comprises coupling a ratchet system to the ball seat member. 
     
     
         19 . The method as recited in  claim 18 , wherein rotating comprises cycling the ratchet system via a J-slot. 
     
     
         20 . The method as recited in  claim 17 , further comprising locking the ball seat member in a production position after completing a desired number of test cycles.