Object, method, and system

Abstract

An embodiment of a tripping object, including a sensor, and a disappear on demand material shell surrounding the sensor. An embodiment of a tool for a borehole environment, including an activator comprising a disappear on demand material, a data collector disposed in contact with the activator. An embodiment of a method for taking an action in a borehole and immediately collecting data, including conveying an object to a feature in a borehole, engaging the feature with the object causing a change based upon the object engaging the feature, disappearing the shell, and collecting data with the sensor. An embodiment of a borehole system, including a borehole in a subsurface formation, a feature in the borehole, an object disposed on the feature.

What is claimed is: 
     
         1 . A tripping object, comprising:
 a sensor; and   a disappear on demand material shell surrounding the sensor.   
     
     
         2 . The object as claimed in  claim 1 , wherein the sensor is connected to a power source within the shell. 
     
     
         3 . The object as claimed in  claim 2 , wherein the power source is a battery. 
     
     
         4 . The object as claimed in  claim 1 , further including a core material within which the sensor is mounted. 
     
     
         5 . The object as claimed in  claim 3 , wherein the core material is of a density lower than a downhole fluid to which the core will be exposed during use. 
     
     
         6 . The object as claimed in  claim 1 , further including a trigger in operable communication with the material. 
     
     
         7 . The object as claimed in  claim 6 , wherein the trigger is embedded in the material. 
     
     
         8 . The object as claimed in  claim 6 , wherein the trigger is surrounded by the material. 
     
     
         9 . The object as claimed in  claim 6 , wherein the trigger is responsive to one or more of temperature, pressure, vibrational signal, or electromagnetic signal. 
     
     
         10 . The object as claimed in  claim 1 , wherein the sensor is one or more sensors and configured to sense one or more of temperature, pressure, or pH. 
     
     
         11 . The object as claimed in  claim 1 , wherein the object is a ball or a dart. 
     
     
         12 . The object as claimed in  claim 1 , wherein the object includes a selective profile. 
     
     
         13 . A tool for a borehole environment, comprising:
 an activator comprising a disappear on demand material;   a data collector disposed in contact with the activator.   
     
     
         14 . The tool as claimed in  claim 13 , wherein the data collector is inoperative while the activator is in an initial condition. 
     
     
         15 . A method for taking an action in a borehole and immediately collecting data, comprising:
 conveying an object as claimed in  claim 1  to a feature in a borehole;   engaging the feature with the object;   causing a change based upon the object engaging the feature;   disappearing the shell; and   collecting data with the sensor.   
     
     
         16 . The method as claimed in  claim 15 , wherein the causing a change is by pressuring against the object engaged with the feature. 
     
     
         17 . The method as claimed in  claim 15 , further including conveying the sensor back to surface while recording data. 
     
     
         18 . The method as claimed in  claim 17 , wherein the conveying is floating. 
     
     
         19 . A borehole system, comprising:
 a borehole in a subsurface formation;   a feature in the borehole;   an object as claimed in  claim 1  disposed on the feature.