Real Time Closed Loop Interpretation of Tubing Treatment Systems and Methods

Abstract

A technique facilitates the treatment of a subterranean formation. The technique involves the use of a fluid delivery system that comprises a continuous feedback system. The continuous feedback system utilizes a real time closed loop interpretation technique to instantaneously synchronize and adjust actions at a well site surface relative to measured downhole events. Sensors are used to monitor at least one downhole property in real time. Based on the real time data, the continuous feedback system enables adjustments to be made with respect to the at least one property in a manner designed to influence a downhole event.

1 . A method of treating a subterranean formation, comprising:
 providing a fluid delivery apparatus, wherein the fluid delivery apparatus comprises a continuous feedback system including a real time closed loop interpretation technique to instantaneously synchronize and adjust actions at a well site surface relative to measured downhole items of interest;   introducing the fluid delivery apparatus into a wellbore penetrating a subterranean formation;   monitoring and evaluating, in real time, at least one downhole property or measurement to detect in real time at least one downhole item of interest; and   upon detection of the at least one downhole item, adjusting in real time at least one parameter to influence and/or control the downhole item.   
   
   
       2 . The method as recited in  claim 1 , wherein providing comprises forming the fluid delivery apparatus with coiled tubing. 
   
   
       3 . The method as recited in  claim 1 , wherein providing further comprises forming the fluid delivery apparatus with a data acquisition, analysis, and control system. 
   
   
       4 . The method as recited in  claim 1 , wherein detecting the at least one downhole item comprises detecting one of stuck potential, diversion, stimulation, over/under balance, nozzle efficiency, downhole tool load, real time extended reach, pressure differential, pressure spike, changes in measurement over time slope, injectivity profile, fluid placement, and volume characterization of deposited scale. 
   
   
       5 . The method as recited in  claim 1 , wherein monitoring and evaluating comprises monitoring and evaluating at least one of pressure, load, fluid velocity, fluid direction, temperature, fluid pH, fluid solids content, and fluid density. 
   
   
       6 . The method as recited in  claim 1 , further comprising measuring the at least one downhole property or measurement using at least one of an acoustic sensor, an infrared sensor, an optical sensor, and a flow sensor. 
   
   
       7 . A system for treating a subterranean formation, comprising:
 a tubing string to deliver a fluid through a wellbore to a subterranean formation;   a sensor positioned downhole to measure a downhole property able to provide an indication of a downhole event or environment; and   a continuous feedback system coupled to the sensor, wherein the continuous feedback system utilizes a real time, closed loop interpretation technique to instantaneously synchronize and adjust actions at a surface location to offset the downhole event or environment.   
   
   
       8 . The system as recited in  claim 7 , wherein the continuous feedback system comprises a control system used for adjustment of at least one parameter in real time to offset the downhole event or environment. 
   
   
       9 . The system as recited in  claim 8 , wherein the control system comprises a processor based control system at a surface location. 
   
   
       10 . The system as recited in  claim 9 , wherein the control system is located proximate the wellbore. 
   
   
       11 . The system as recited in  claim 9 , wherein the control system is located remote from the wellbore. 
   
   
       12 . The system as recited in  claim 7 , wherein the tubing string comprises coiled tubing. 
   
   
       13 . The system as recited in  claim 7 , wherein the sensor comprises a plurality of sensors. 
   
   
       14 . The system as recited in  claim 13 , wherein the plurality of sensors are used to monitor a plurality of downhole properties. 
   
   
       15 . A method of treating a subterranean formation, comprising:
 performing a fluid treatment operation downhole;   monitoring in real time at least one downhole property related to the fluid treatment operation;   using a real time closed loop interpretation technique on a continuous feedback system to evaluate data obtained from monitoring in real time the at least one downhole property; and   adjusting the at least one downhole property based on the evaluation of data to provide a desired influence downhole.   
   
   
       16 . The method as recited in  claim 15 , wherein performing comprises delivering a treatment fluid downhole through a coiled tubing. 
   
   
       17 . The method as recited in  claim 15 , wherein monitoring comprises monitoring pressure at a desired downhole location. 
   
   
       18 . The method as recited in  claim 15 , wherein monitoring comprises monitoring temperature at a desired downhole location. 
   
   
       19 . The method as recited in  claim 15 , wherein monitoring comprises monitoring a treatment fluid characteristic at a desired downhole location. 
   
   
       20 . The method as recited in  claim 15 , wherein adjusting comprises using a data acquisition, analysis and control system to adjust the at least one downhole property. 
   
   
       21 . A system, comprising:
 a well treatment system having a fluid delivery apparatus, the fluid delivery apparatus comprising a continuous feedback system having a real time closed loop interpretation technique to instantaneously synchronize and adjust actions relative to measured downhole items of interest.   
   
   
       22 . The system as recited in  claim 21 , wherein the well treatment system further comprises a data acquisition, analysis and control system to monitor and evaluate in real time at least one downhole property used as an indicator of a downhole event or environment. 
   
   
       23 . The system as recited in  claim 22 , wherein the well treatment system comprises a plurality of sensors located downhole to monitor the at least one downhole property. 
   
   
       24 . The system as recited in  claim 23 , wherein the fluid delivery apparatus comprises coiled tubing.