Downhole Impression Imaging System and Methods Using Shape Memory Material

Abstract

A system and method for obtaining an impression of an object in a remote environment. An impression block is affixed to a running string and disposed into the remote environment and used to form an impression. The impression block includes an impression section formed of a shape memory material that can be transformed between an original shape and a temporary shape.

1 - 16 . (canceled) 
     
     
         17 . A method for obtaining an impression of an object in a remote environment comprising the steps of:
 disposing an impression block into the remote environment, the impression block having an impression section that is formed of a shape memory material that may be changed between an original shape and a temporary shape when at or above a predetermined transition temperature and which retains either the original or temporary shape when below the transition temperature;   heating the impression block to the transition temperature;   forming an impression of the object within the impression block; and   cooling the impression block below the transition temperature.   
     
     
         18 . The method of  claim 17  wherein the impression block is disposed into the remote environment on a running string. 
     
     
         19 . The method of  claim 17  wherein the remote environment comprises a subterranean or subsea hydrocarbon-production wellbore. 
     
     
         20 . The method of  claim 17  wherein the step of heating the impression block to the transition temperature further comprises actuating a heating mechanism. 
     
     
         21 . A method for obtaining an impression of an object in a remote environment comprising the steps of:
 disposing an impression block into the remote environment, the impression block having an impression section that is formed of a shape memory material that may be changed between an original shape and a temporary shape and that is returned to the original shape from the temporary shape when heated at or above a predetermined transition temperature;   forming an impression of the object within the impression block, the impression providing the temporary shape; and   removing the impression block from the remote environment.   
     
     
         22 . The method of  claim 21  further comprising the step of heating the impression block to the transition temperature to return the impression block to its original shape.